WO2019201144A1

WO2019201144A1 - Information transmission method for unlicensed band, network device, and terminal

Info

Publication number: WO2019201144A1
Application number: PCT/CN2019/082212
Authority: WO
Inventors: 姜蕾; 吴凯; 鲁智
Original assignee: 维沃移动通信有限公司
Priority date: 2018-04-20
Filing date: 2019-04-11
Publication date: 2019-10-24
Also published as: CN110391885A; CN110391885B

Abstract

The present disclosure discloses an information transmission method for an unlicensed band, a network device, and a terminal. Said method comprises: transmitting, on a target transmission resource of an unlicensed band, a synchronization signal block (SSB) and/or remaining minimum system information (RMSI) to a terminal.

Description

Information transmission method, network device and terminal for unlicensed frequency band

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 20181036068, filed on Jan. 20, 2018, the entire disclosure of which is hereby incorporated by reference.

Technical field

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

Background technique

In a mobile communication system, an unlicensed band can be used as a supplement to a licensed band to help operators expand services. In order to be consistent with the deployment of the New Radio (NR) system and to maximize the unauthorized access based on the NR system, the unlicensed band can operate in the 5 GHz, 37 GHz and 60 GHz bands. The large bandwidth (80MHz or 100MHz) of the unlicensed band can reduce the implementation complexity of network devices and terminals. Unlicensed bands are used because the unlicensed bands are shared by multiple radio access technologies (RATs), such as WiFi, radar, and Long Term Evolution License Assisted Access (LTE-LAA). In use, certain regulations must be met to ensure that all devices can use the resource fairly, such as Listen Before Talk (LBT), Maximum Channel Occupancy Time (MCOT), and occupied bandwidth. (occupied channel bandwidth, OCB) and other rules. Among them, for the 5 GHz band, the OCB should be greater than or equal to 80% of the nominal channel bandwidth. For the 60 GHz band, the OCB should be greater than or equal to 70% of the nominal channel bandwidth.

In the NR system, for initial access, radio resource management (RRM), etc., the network device needs to send a Synchronization Signal and PBCH Block (SSB) for the terminal to perform measurement evaluation and the like. The SSB is composed of a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a Physical Broadcast Channel (PBCH), and is periodically transmitted by the network device. In CONNECTED, IDLE, or non-standalone scenarios, the SSB period can be configured to {5, 10, 20, 40, 80, 160} ms, but regardless of the period setting For example, the SSB in the SS burst set must be sent in a 5ms window.

In the licensed band of the NR system, the SSB and the Remaining Minimum System Information (RMSI) are transmitted in three ways. As shown in Figure 1a, the SSB and the RMSI are Time Division Multiple (TDM). SSB and RMSI are sent in the time domain. Alternatively, as shown in FIG. 1b and FIG. 1c, the SSB and the RMSI are in a frequency division multiplexing (FDM) manner, wherein, as shown in FIG. 1b, the RMSI control resource set (CORESET) is first. Transmit, physical downlink shared channel (PDSCH) carrying RMSI and SSB frequency division multiplexing transmission. As shown in FIG. 1c, the CORESET and PDSCH corresponding to the RMSI are frequency-division multiplexed with the SSB. The frequency domain interval between the SSB and the RMSI does not exceed 2 RBs. Among them, in the first frequency (Frequency 1, FR1) (sub6 GHz), only the TDM mode as shown in FIG. 1a can be adopted. In the second frequency (Frequency 2, FR2) (24.25 GHz to 52.6 GHz), any of the methods of FIGS. 1a to 1c can be employed.

For unlicensed bands, the transmission of SSB and RMSI needs to meet the OCB requirements. If the transmission mode of the licensed band is adopted, the transmission bandwidth of SSB and RMSI does not meet the OCB requirements.

Summary of the invention

Some embodiments of the present disclosure provide an information transmission method, a network device, and a terminal of an unlicensed frequency band to solve the transmission problem of the unlicensed frequency band SSB and RMSI.

In a first aspect, some embodiments of the present disclosure provide an information transmission method for an unlicensed frequency band, which is applied to a network device side, and includes:

The synchronization signal block SSB and/or the remaining minimum system information RMSI are transmitted to the terminal on the target transmission resource of the unlicensed band.

In a second aspect, some embodiments of the present disclosure further provide a network device, including:

And a sending module, configured to send the synchronization signal block SSB and/or the remaining minimum system information RMSI to the terminal on the target transmission resource of the unlicensed band.

In a third aspect, some embodiments of the present disclosure provide a network device including a processor, a memory, and a computer program stored on the memory and executable on the processor, the processor implementing the computer program to implement the foregoing non- The steps of the information transmission method of the licensed frequency band.

In a fourth aspect, some embodiments of the present disclosure provide an information transmission method for an unlicensed frequency band, which is applied to a terminal side, and includes:

The synchronization signal block SSB information and/or the remaining minimum system information RMSI are received on the target transmission resource of the unlicensed band.

In a fifth aspect, some embodiments of the present disclosure provide a terminal, including:

And a receiving module, configured to receive the synchronization signal block SSB information and/or the remaining minimum system information RMSI on the target transmission resource of the unlicensed band.

In a sixth aspect, some embodiments of the present disclosure further provide a terminal, where the terminal includes a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program is executed by the processor to implement the foregoing non- The steps of the information transmission method of the licensed frequency band.

In a seventh aspect, some embodiments of the present disclosure provide a computer readable storage medium having a computer program stored thereon, the computer program being executed by the processor, and the step of implementing the information transmission method of the unlicensed frequency band described above .

In this way, some embodiments of the present disclosure can solve the problem of sending SSB and RMSI on an unlicensed band by adopting the foregoing solution, and can ensure that the network device sends the SSB and the RMSI to the terminal through the unlicensed band, thereby ensuring the network device and the terminal. Normal communication.

DRAWINGS

In order to more clearly illustrate the technical solutions of some embodiments of the present disclosure, the drawings to be used in the description of some embodiments of the present disclosure will be briefly described below. It is obvious that the drawings in the following description are only the present disclosure. Some embodiments of the present invention can be obtained by those skilled in the art from the drawings without any inventive labor.

1a to 1c are diagrams showing transmission resource mapping of SSB and RMSI in a licensed frequency band;

FIG. 2 is a schematic flowchart diagram of an information transmission method of a network device side unlicensed frequency band according to some embodiments of the present disclosure;

FIG. 3 is a schematic diagram of a transmission resource mapping of a scenario one of the scenarios of some embodiments of the present disclosure; FIG.

FIG. 4 is a schematic diagram of a transmission resource mapping of the second mode of the scenario according to some embodiments of the present disclosure;

5a and 5b are schematic diagrams showing a transmission resource mapping of mode 1 in scenario 2 of some embodiments of the present disclosure;

FIG. 6 is a schematic diagram of transmission resource mapping in the second mode of scenario 2 of some embodiments of the present disclosure;

FIG. 7 is a schematic diagram showing a transmission resource mapping of mode 3 in scenario 2 of some embodiments of the present disclosure;

8a to 8f are diagrams showing a transmission resource mapping of the mode 1 in the scenario 3 of some embodiments of the present disclosure;

9a and 9b are schematic diagrams showing transmission resource mapping of mode two in the second mode of some embodiments of the present disclosure;

10a and 10b are diagrams showing a transmission resource mapping of mode three in the third mode of some embodiments of the present disclosure;

11a and 11b are diagrams showing a transmission resource mapping of a scenario 3 in a scenario 3 of some embodiments of the present disclosure;

12 is a block diagram showing the structure of a network device of some embodiments of the present disclosure;

Figure 13 shows a block diagram of a network device of some embodiments of the present disclosure;

FIG. 14 is a schematic flowchart diagram of an information transmission method of a terminal side unlicensed frequency band according to some embodiments of the present disclosure;

15 is a block diagram showing the structure of a terminal of some embodiments of the present disclosure;

Figure 16 shows a block diagram of a terminal of some embodiments of the present disclosure.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the embodiments of the present invention have been shown in the drawings, the embodiments Rather, these embodiments are provided so that this disclosure will be more fully understood and the scope of the disclosure will be fully disclosed.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a particular order or order. It is to be understood that the data so used may be interchanged where appropriate, such that the embodiments of the present application described herein can be implemented, for example, in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices. Wherein "and/or" means at least one of the connected objects, for example, A and/or B, representing A, or B, or A and B. In some embodiments of the present disclosure, the words "exemplary" or "such as" are used to mean an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in some embodiments of the present disclosure should not be construed as being more optional or advantageous over other embodiments or designs. Rather, the use of the words "exemplary" or "such as" is intended to present the concepts in a particular manner.

Embodiments of the present disclosure will be described below with reference to the accompanying drawings. The wireless communication system to which some embodiments of the present disclosure are applied may be a 5G system, or an Evolved Long Term Evolution (eLTE) system, or a subsequent evolved communication system. The wireless communication system can include: a network device and a user device. It should be noted that the foregoing communication system may include multiple UEs, network devices, and may communicate with multiple UEs (transmit signaling or transmit data).

The network device provided by some embodiments of the present disclosure may be a base station, which may be a commonly used base station, or an evolved node base station (eNB), or may be a network device in a 5G system (for example, A generation base station (gNB) or a transmission and reception point (TRP) or a cell. The user equipment provided by some embodiments of the present disclosure may be a mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA).

Some embodiments of the present disclosure provide an information transmission method for an unlicensed frequency band, which is applied to a network device side. As shown in FIG. 2, the method may include:

Step 21: Send a synchronization signal block SSB and/or remaining minimum system information RMSI to the terminal on the target transmission resource of the unlicensed band.

In order to ensure that the unlicensed band can be used normally under different radio access technologies, the unlicensed band must meet certain regulations when used, such as LBT, MCOT, OCB, etc. Among them, the transmission mode of SSB and RMSI in the licensed band as shown in FIG. 1a to FIG. 1c is no longer applicable to the unlicensed band because the transmission of SSB and RMSI cannot meet the OCB requirement. When a network device transmits SSB and/or RMSI through an unlicensed band, the OCB requirements must be met.

The bandwidth occupied by the target transmission resource is greater than or equal to a preset percentage of the nominal channel bandwidth of the transmission channel of the unlicensed band. For example, for an unlicensed frequency band of 5 GHz, the target transmission resource used by the network device occupies a bandwidth greater than or equal to 80% of the nominal channel bandwidth of the transmission channel of the unlicensed band. For the unlicensed frequency band of 60 GHz, the target transmission resource used by the network device occupies a bandwidth greater than or equal to 70% of the nominal bandwidth of the transmission channel of the unlicensed band.

The information transmission method of the unlicensed frequency band of some embodiments of the present disclosure will be further described below in conjunction with specific application scenarios and resource mapping diagrams.

Scenario 1: In step 21, the network device sends an SSB to the terminal on the target transmission resource. The scenario refers to a scenario in which the network device sends only the SSB to the terminal in a time domain transmission range, such as the SSB and the RMSI are TDM transmission modes, that is, the transmission mapping relationship corresponding to the licensed frequency band shown in FIG. 1a. In this scenario, the step of the network device sending the SSB to the terminal on the target transmission resource may be implemented by, but not limited to, the following:

Manner 1: On the target transmission resource, send at least two SSBs to the terminal. The transmission resources corresponding to the at least two SSBs are frequency division multiplexed.

In this mode, an SSB cannot meet the OCB requirement, and the network device sends at least two SSBs in a frequency division multiplexing manner, and at least two SSBs are not adjacent in the frequency domain, and the SSB is in a nominal channel bandwidth of the transmission channel. Both ends are sent to increase the band occupancy rate. For example, as shown in FIG. 3, the network device configures at least two SSBs on both sides of the nominal channel bandwidth of the transmission channel of the unlicensed band, and increases the frequency domain interval, thereby ensuring that the frequency domain bandwidth occupied by at least two SSBs is satisfied. OCB requirements. Wherein, if an SSB is located on one side of the nominal channel bandwidth of the transport channel (eg, the lower frequency side of the nominal channel bandwidth), then the network device can configure another SSB to the nominal channel bandwidth of the transport channel. On the other side (such as the higher frequency side of the nominal channel bandwidth), or one SSB is located on the higher frequency side of the nominal channel bandwidth of the transport channel, then the network device can configure another SSB to the transport channel. The lower frequency side of the nominal channel bandwidth, or an SSB is located in the middle of the nominal channel bandwidth of the transport channel. If an SSB is added, the newly added SSB is configured to the nominal channel bandwidth of the transport channel. The higher frequency side or the lower frequency side cannot meet the OCB requirement. In this case, the SSB (not shown) can be added on both sides of the SSB to meet the OCB requirements.

Manner 2: Send an SSB and at least one padding signal to the terminal on the target transmission resource. The transmission resources corresponding to the SSB and the padding signal are frequency division multiplexed.

Since an SSB cannot meet the OCB requirement, the network device can increase the transmission of at least one padding signal when the frequency domain resource can be configured for the SSB. Wherein, increasing the transmission position of the transmitted padding signal depends on the location of the SSB and the bandwidth required by the OCB. As shown in FIG. 4, the SSB is located on one side of the nominal channel bandwidth of the transmission channel (eg, the frequency in the nominal channel bandwidth is higher). On one side), the fill signal can then be configured to the other side of the nominal channel bandwidth of the transport channel (eg, the lower frequency side of the nominal channel bandwidth). Alternatively, the SSB is located on the lower frequency side of the nominal channel bandwidth of the transport channel, then the fill signal can be configured to the higher frequency side of the nominal channel bandwidth of the transport channel (not shown), or The SSB is located in the middle of the nominal channel bandwidth of the transport channel, and a fill signal (not shown) can be added to each side of the SSB.

Scenario 2: In step 21, the network device sends an RMSI to the terminal on the target transmission resource. The scenario refers to a scenario in which the network device sends only the RMSI to the terminal within a transmission range of the timing domain, such as the SSB and the RMSI are TDM transmission modes, that is, the transmission mapping relationship corresponding to the licensed frequency band shown in FIG. 1a. In this scenario, the step of the network device transmitting the RMSI to the terminal on the target transmission resource may be implemented by, but not limited to, the following:

Method 1: Send an RMSI to the terminal on the target transmission resource. The frequency domain resources of the data channel corresponding to the RMSI are discontinuous.

In this mode, if the network device adopts the RMSI of the data channel frequency domain resource continuously, the OCB requirement cannot be met. To meet the OCB requirement of the unlicensed band, the network device can adopt the discontinuous RMSI of the data channel frequency domain resource. As shown in Figures 5a and 5b, the network device can configure the data channel corresponding to the RMSI to non-contiguous frequency domain transmission resources to meet the OCB requirements. The time domain resource alignment of each data channel in which the frequency domain resources are discontinuous in FIG. 5a is aligned. The time domain resources of the discontinuous data channels corresponding to the RMSI in FIG. 5b are not aligned, but do not exceed the time domain resources of the control channel + data channel overlapping in the frequency domain, and optionally, the frequency domain resources of the control channel of the RMSI are different. The data channel, the time domain resource of the data channel and the time domain resource of the control channel + data channel overlapping the frequency domain.

It should be noted that, regardless of whether the frequency domain resources of the data channel corresponding to the RMSI are continuous or non-contiguous, the RMSI carried by the data channel corresponds to the control channel. That is, the control channel corresponding to the RMSI may indicate: the transmission information of the at least two data channels in which the RMSI is discontinuous in the frequency domain resource. The at least two non-contiguous data channels of the frequency domain resource may transmit the same information or transmit different information.

Manner 2: Send at least two RMSIs to the terminal on the target transmission resource. The transmission resources corresponding to the at least two RMSIs are frequency division multiplexed.

In this mode, the network device uses the frequency division multiplexing mode to transmit the RMSI of the frequency domain resources of the at least two data channels. To meet the OCB requirement of the unlicensed band, the network device enables at least two RMSIs when configuring the frequency domain resources for the RMSI. The two adjacent RMSIs are not immediately adjacent in the frequency domain, but at least two RMSIs are transmitted at both ends of the nominal channel bandwidth of the transmission channel to increase the band occupancy. For example, as shown in FIG. 6, the network device configures at least two RMSIs on both sides of the nominal channel bandwidth of the transmission channel of the unlicensed band, and increases the frequency domain interval, thereby ensuring that the frequency domain bandwidth occupied by at least two RMSIs is satisfied. OCB requirements. Wherein, if an RMSI is located on one side of the nominal channel bandwidth of the transport channel (eg, the lower frequency side of the nominal channel bandwidth), then the network device can configure another RMSI to the nominal channel bandwidth of the transport channel. On the other side (such as the higher frequency side of the nominal channel bandwidth), or an RMSI is located on the higher frequency side of the nominal channel bandwidth of the transport channel, the network device can configure another RMSI to the transport channel. The lower frequency side of the nominal channel bandwidth, or an RMSI is located in the middle of the transmission channel. If an RMSI is added, the newly added RMSI is configured to the higher frequency side of the nominal channel bandwidth of the transmission channel. Or the lower frequency side can not meet the OCB requirements, then the RMSI (not shown) can be added on both sides of the RMSI to meet the OCB requirements.

Manner 3: Send an RMSI and at least one padding signal to the terminal on the target transmission resource. The transmission resource corresponding to the RMSI and the padding signal is frequency division multiplexed.

Since the continuous RMSI of a data channel frequency domain resource cannot meet the OCB requirement, the network device can increase the transmission of at least one padding signal when the frequency domain resource can be configured for the RMSI. Wherein, increasing the transmission position of the transmitted padding signal depends on the location of the RMSI and the bandwidth required by the OCB. As shown in FIG. 7, the RMSI is located on the side of the nominal channel bandwidth of the transmission channel (eg, the frequency in the nominal channel bandwidth is higher). On one side), the fill signal can then be configured to the other side of the nominal channel bandwidth (eg, the lower frequency side of the nominal channel bandwidth). Alternatively, the RMSI is located on the lower frequency side of the nominal channel bandwidth of the transmission channel, then the fill signal can be configured to the higher frequency side of the nominal channel bandwidth (not shown), or the RMSI is located in the transmission. In the middle of the channel, a fill signal (not shown) can be added to each side of the RMSI.

Scenario 3: In step 21, the network device sends the SSB and the RMSI to the terminal on the target transmission resource. The scenario refers to a scenario in which the network device not only sends the SSB to the terminal but also needs to send the RMSI to the terminal, such as the SSB and the RMSI are FDM transmission modes, that is, corresponding to FIG. 1b or 1c. The transmission mapping relationship of the licensed band shown. In this scenario, the step of the network device transmitting the SSB and the RMSI to the terminal on the target transmission resource may be implemented by, but not limited to, the following:

Manner 1: On the target transmission resource, send an SSB and an RMSI to the terminal. The transmission resources corresponding to the SSB and the RMSI are frequency division multiplexed, and the frequency domain resources of the data channel corresponding to the RMSI are continuous or discontinuous.

In this mode, the network device uses the frequency division multiplexing method to transmit the RMSI and the SSB. To meet the OCB requirements of the unlicensed band, the network device does not make the SSB and the RMSI in the frequency domain when configuring the frequency domain resources for the SSB and the RMSI. Adjacent, the SSB and RMSI are transmitted across the nominal channel bandwidth of the transport channel to increase band occupancy. For example, as shown in FIG. 8a, the network device configures the SSB and the RMSI respectively on both sides of the nominal channel bandwidth of the transmission channel of the unlicensed band, and increases the frequency domain interval between the SSB and the RMSI to ensure the SSB and the RMSI. The frequency domain bandwidth meets the OCB requirements. Wherein, the transmission location of the RMSI depends on the location of the SSB and the bandwidth required by the OCB. For example, as shown in FIG. 8a and FIG. 8d, the SSB is located on the lower frequency side of the nominal channel bandwidth of the transmission channel, then the network device can The RMSI is configured to the higher frequency side of the nominal channel bandwidth of the transport channel such that the RMSI+SSB can meet the OCB requirements. 8a corresponds to the transmission mode of the licensed band in FIG. 1c, and the time domain resource of the control channel + data channel corresponding to the RMSI is aligned with the time domain resource of the SSB. Figure 8d corresponds to the transmission mode of the licensed band in Figure 1b. The time domain resources of the data channel corresponding to the RMSI are aligned with the time domain resources of the SSB. Or conversely, the SSB is located on the higher frequency side of the nominal channel bandwidth of the transport channel, then the network device can configure the RMSI to the lower frequency side of the nominal channel bandwidth of the transport channel (not shown) ), so that RMSI+SSB can meet OCB requirements. The OCB requirements of different frequency bands are different. For example, at 5 GHz, the OCB is required to be a channel nominal channel bandwidth greater than or equal to 70%, and at 60 GHz, the OCB is required to be a channel nominal channel bandwidth greater than or equal to 80%. Wherein, the frequency domain resources of the data channel corresponding to the RMSI are continuous at this time.

If the continuous RMSI of the SSB+ data channel frequency domain resource cannot meet the OCB requirement, for example, the SSB is located in the middle part of the transmission channel, regardless of the continuous RMSI of the data channel frequency domain resource to the higher frequency side of the nominal channel bandwidth of the transmission channel. On the lower frequency side, RMSI+SSB cannot meet the OCB requirements. In this case, the discontinuous RMSI of the frequency channel resource of the data channel can be used. As shown in FIG. 8b to FIG. 8f, the network device can configure the data channel corresponding to the RMSI to the frequency domain resource discontinuous frequency domain transmission resource, so that the discontinuous RMSI of the SSB+ data channel frequency domain resource satisfies the OCB requirement. 8b and 8c correspond to the transmission mode of the licensed band in FIG. 1c, and the time domain resources of the control channel + data channel corresponding to the RMSI are aligned with the time domain resources of the SSB. The time domain resources of the non-contiguous data channels of the frequency domain resources corresponding to the RMSI in 8b are aligned, and the time domain resources of the discontinuous data channels of the frequency domain resources corresponding to the RMSI in 8c are not aligned, but the time domain of the SSB is not exceeded. The resource, optionally, a data channel different from the control channel frequency domain resource of the RMSI, whose time domain resources of the data channel are aligned with the time domain resources of the SSB. 8e and 8f correspond to the transmission mode of the licensed frequency band in FIG. 1b, wherein the time domain resources of the discontinuous data channels of the frequency domain resources corresponding to the RMSI in FIG. 8e are aligned, and the frequency domain resources corresponding to the RMSI in 8f are discontinuous. The time domain resources of the data channel are not aligned, but do not exceed the time domain resources of the control channel + data channel overlapped in the frequency domain, optionally, the data channel different from the frequency domain resource of the control channel of the RMSI, and the time domain of the data channel The time domain resource of the control channel + data channel where the resource overlaps with the frequency domain.

It should be noted that, regardless of whether the frequency domain resources of the data channel corresponding to the RMSI are continuous or non-contiguous, the RMSI carried by the data channel corresponds to the control channel. That is to say, the control channel corresponding to the RMSI may indicate: the transmission information of the at least two data channels in which the RMSI is discontinuous in the frequency domain resource. The at least two non-contiguous data channels of the frequency domain resource may transmit the same information or transmit different information.

Manner 2: On the target transmission resource, send an SSB and at least two RMSIs to the terminal, where the transmission resources corresponding to the SSB and the at least two RMSIs are frequency division multiplexed.

In this mode, the network device uses the frequency division multiplexing method to transmit the RMSI and the SSB. To meet the OCB requirements of the unlicensed band, the network device does not make the SSB and the RMSI in the frequency domain when configuring the frequency domain resources for the SSB and the RMSI. Adjacent, the SSB and RMSI are transmitted across the nominal channel bandwidth of the transport channel to increase band occupancy. However, if the SSB+RMSI cannot meet the OCB requirements, for example, the SSB is located in the middle part of the transmission channel, regardless of whether the RMSI is configured to the higher frequency side of the nominal channel bandwidth of the transmission channel or the lower frequency side, RMSI+SSB Unable to meet OCB requirements. In this case, multiple RMSIs can be sent. Wherein, the sending position of the RMSI depends on the location of the SSB and the bandwidth required by the OCB. As shown in FIGS. 9a and 9b, the SSB is located in the middle of the nominal channel bandwidth of the transport channel, and multiple RMSIs can be respectively configured on both sides of the SSB. The number of RMSIs may be determined according to the specific requirements of the OCB. In order to simplify the terminal detection complexity, the number of RMSIs may be set to two and respectively configured to the sides of the SSB, by increasing the SSB and the RMSI. The frequency domain spacing allows RMSI+SSB+RMSI to meet OCB requirements. 9a corresponds to the transmission mode of the licensed band in FIG. 1c, and the time domain resources of the control channel + data channel corresponding to the RMSI are aligned with the time domain resources of the SSB. FIG. 9b corresponds to the transmission mode of the licensed frequency band in FIG. 1b, and the time domain resource of the data channel corresponding to the RMSI is aligned with the time domain resource of the SSB.

Manner 3: Send at least two SSBs and one RMSI to the terminal on the target transmission resource. The transmission resources corresponding to the at least two SSBs and the RMSI are frequency division multiplexed.

In this mode, the network device uses the frequency division multiplexing method to transmit the RMSI and the SSB. To meet the OCB requirements of the unlicensed band, the network device does not make the SSB and the RMSI in the frequency domain when configuring the frequency domain resources for the SSB and the RMSI. Adjacent, the SSB and RMSI are transmitted across the nominal channel bandwidth of the transport channel to increase band occupancy. However, if the SSB+RMSI cannot meet the OCB requirements, for example, the SSB is located in the middle of the nominal channel bandwidth of the transmission channel, regardless of whether the RMSI is configured to the higher frequency side of the nominal channel bandwidth of the transmission channel or the lower frequency side. RMSI+SSB cannot meet OCB requirements. In this case, multiple SSBs can be sent. Wherein, increasing the transmission position of the transmitted SSB depends on the location of the SSB+RMSI and the bandwidth required by the OCB, as shown in Figures 10a and 10b, the SSB is located in the middle of the nominal channel bandwidth of the transmission channel, and the RMSI is located in the nominal of the transmission channel. On the higher frequency side of the channel bandwidth, the increased transmitted SSB can be configured to the lower frequency side of the nominal channel bandwidth of the transport channel. Or conversely, the SSB is located in the middle of the nominal channel bandwidth of the transport channel, and the RMSI is located on the lower frequency side of the nominal channel bandwidth of the transport channel, then the SSB that increases the transmission can be configured into the nominal channel bandwidth of the transport channel. The higher frequency side (not shown). The number of SSBs may be determined according to the specific requirements of the OCB. To simplify the complexity of terminal detection, the number of SSBs may be set to two, and the OCB requirements are met by increasing the frequency domain spacing. 10a corresponds to the transmission mode of the licensed band in FIG. 1c, and the time domain resources of the control channel + data channel corresponding to the RMSI are aligned with the time domain resources of the SSB. 10b corresponds to the transmission mode of the licensed band in FIG. 1b, and the time domain resource of the data channel corresponding to the RMSI is aligned with the time domain resource of the SSB.

Manner 4: Send, on the target transmission resource, an SSB, an RMSI, and at least one padding signal to the terminal, where the transmission resources corresponding to the SSB and the RMSI and the at least one padding signal are frequency division multiplexed.

In this mode, the network device uses the frequency division multiplexing method to transmit the RMSI and the SSB. To meet the OCB requirements of the unlicensed band, the network device does not make the SSB and the RMSI in the frequency domain when configuring the frequency domain resources for the SSB and the RMSI. Adjacent, the SSB and RMSI are transmitted across the nominal channel bandwidth of the transport channel to increase band occupancy. However, if the SSB+RMSI cannot meet the OCB requirements, for example, the SSB is located in the middle of the nominal channel bandwidth of the transmission channel, regardless of whether the RMSI is configured to the lower frequency side of the nominal channel bandwidth or the higher frequency side, RMSI+ SSB can't meet OCB requirements. In this case, it is possible to increase the transmission of at least one fill signal. Wherein, increasing the transmission position of the transmitted padding signal depends on the location of the SSB+RMSI and the bandwidth required by the OCB, as shown in FIGS. 11a and 11b, the SSB is located in the middle portion of the nominal channel bandwidth of the transmission channel, and the RMSI is located in the label of the transmission channel. Referring to the higher frequency side of the channel bandwidth, the fill signal can be configured to the lower frequency side of the nominal channel bandwidth of the transport channel. Or conversely, the SSB is located in the middle of the nominal channel bandwidth of the transport channel, and the RMSI is located on the lower frequency side of the nominal channel bandwidth of the transport channel, then the fill signal can be configured into the nominal channel bandwidth of the transport channel. The high side (not shown). The number of the padding signals may be determined according to the specific requirements of the OCB. To simplify the terminal detection complexity, the number of padding signals may be set to one, and the RMSI+SSB+ padding signal is satisfied by increasing the frequency domain spacing. OCB requirements. 11A corresponds to the transmission mode of the licensed frequency band in FIG. 1c, and the time domain resources of the control channel + data channel corresponding to the RMSI are aligned with the time domain resources of the SSB. 11b corresponds to the transmission mode of the licensed frequency band in FIG. 1b, and the time domain resource of the data channel corresponding to the RMSI is aligned with the time domain resource of the SSB.

Optionally, the padding signals involved in scenario 1, scenario 2, and scenario 3 above may include, but are not limited to, a reference signal and/or a channel reservation signal. The reference signals include, but are not limited to, a Channel State Information Reference Signal (CSI-RS), a De-Modulation Reference Signal (DMRS), a Tracking Reference Signal (TRS), and a phase. At least one of a Tracking Reference Signal (PTRS) and the like. Wherein, when the padding signal is a reference signal, in order to meet the OCB requirement, the network device may also be within a nominal channel bandwidth of the transmission channel of the unlicensed band or a preset percentage of the nominal channel bandwidth, except for the SSB and/or RMSI. The reference signal is transmitted on the frequency domain resource.

Optionally, in scenario 1 and scenario 3, when the SSB is at least two, at least two SSBs are repeatedly sent, or at least two are different for the SSB. That is to say, in order to meet the OCB requirement, when the network device sends multiple SSBs by using frequency division multiplexing, the SSB may be repeated transmission of the same SSB, or may be multiple different SSBs.

Optionally, in scenario 2 and scenario 3, when the RMSI is at least two, at least two RMSIs are repeatedly sent, or at least two are different in RMSI. That is to say, in order to meet the OCB requirement, when the network device transmits multiple RMSIs by using frequency division multiplexing, the RMSI may be a repeated transmission of the same RMSI, or may be multiple different RMSIs. There are two ways to indicate the RMSI. If only the control channel location of one of the RMSIs is indicated in the SSB, this method is only suitable for two RMSIs to send the same content. If the location of the control channels of the two RMSIs is indicated in the SSB, the network device can transmit two different RMSIs, and the terminal can perform the RMSI detection at two locations according to the indication.

The control channel corresponding to the RMSI includes: a control resource set CORESET corresponding to the RMSI, and the data channel corresponding to the RMSI includes: a physical downlink shared channel PDSCH that transmits the RMSI.

The information transmission method of the unlicensed frequency band of some embodiments of the present disclosure can solve the problem of sending SSB and RMSI on the unlicensed frequency band by adopting the foregoing solution, and can ensure that the network device sends the SSB and the RMSI to the terminal through the unlicensed frequency band, thereby ensuring Normal communication between network devices and terminals.

The above embodiments respectively describe the information transmission methods of the unlicensed frequency bands in different scenarios. The following embodiments further describe the corresponding network devices in conjunction with the drawings.

As shown in FIG. 12, the network device 1200 of some embodiments of the present disclosure can implement the method for transmitting a synchronization signal block SSB and/or a remaining minimum system information RMSI to a terminal on a target transmission resource of an unlicensed frequency band in the foregoing embodiment. In detail, and achieving the same effect, the network device 1200 specifically includes the following functional modules:

The sending module 1210 is configured to send the synchronization signal block SSB and/or the remaining minimum system information RMSI to the terminal on the target transmission resource of the unlicensed band.

The sending module 1210 includes:

a first sending submodule, configured to send, to the terminal, at least two SSBs on the target transmission resource, where the transmission resources corresponding to the at least two SSBs are frequency division multiplexed;

or,

The second sending submodule is configured to send, to the terminal, an SSB and at least one padding signal on the target transmission resource, where the transmission resource corresponding to the SSB and the padding signal is frequency division multiplexed.

The sending module 1210 includes:

a third sending submodule, configured to send, to the terminal, an RMSI on the target transmission resource, where the frequency domain resource of the data channel corresponding to the RMSI is discontinuous;

or,

a fourth sending submodule, configured to send, to the terminal, at least two RMSIs on the target transmission resource, where the transmission resources corresponding to the at least two RMSIs are frequency division multiplexed;

or,

And a fifth sending submodule, configured to send, to the terminal, an RMSI and at least one padding signal on the target transmission resource, where the transmission resource corresponding to the RMSI and the padding signal is frequency division multiplexed.

The sending module 1210 includes:

a sixth sending submodule, configured to send, to the terminal, an SSB and an RMSI on the target transmission resource, where the transmission resources corresponding to the SSB and the RMSI are frequency division multiplexed, and the frequency domain resources of the data channel corresponding to the RMSI are consecutive Or discontinuous;

or,

a seventh sending submodule, configured to send, to the terminal, an SSB and at least two RMSIs on the target transmission resource, where the transmission resources corresponding to the SSB and the at least two RMSIs are frequency division multiplexed;

or,

An eighth sending submodule, configured to send, by the target transmission resource, at least two SSBs and one RMSI to the terminal; wherein, the transmission resources corresponding to the at least two SSBs and the RMSI are frequency division multiplexed;

or,

And a ninth sending submodule, configured to send, to the terminal, an SSB, an RMSI, and at least one padding signal on the target transmission resource, where the transmission resources corresponding to the SSB and the RMSI and the at least one padding signal are frequency division multiplexed.

The padding signal includes: a reference signal and/or a channel occupation signal; the reference signal includes at least one of a channel state indication reference signal CSI-RS, a demodulation reference signal DMRS, a sounding reference signal TRS, and a phase tracking pilot signal PTRS. .

Wherein, when the SSB is at least two, at least two SSBs are repeatedly sent, or at least two SSBs are different.

Wherein, when the RMSI is at least two, at least two RMSIs are repeatedly transmitted, or at least two RMSIs are different.

The bandwidth occupied by the target transmission resource is greater than or equal to a preset percentage of the nominal channel bandwidth of the transmission channel of the unlicensed band.

It is to be noted that the network device of some embodiments of the present disclosure can solve the problem of sending SSB and RMSI on an unlicensed band by using the foregoing solution, and can ensure that the network device sends the SSB and the RMSI to the terminal through the unlicensed band, thereby ensuring the network. Normal communication between the device and the terminal.

In order to better achieve the above object, an embodiment of the present disclosure further provides a network device, including a processor, a memory, and a computer program stored on the memory and operable on the processor, the processor executing the computer program The steps in the information transmission method of the unlicensed band as described above are implemented. The embodiment of the invention further provides a computer readable storage medium having stored thereon a computer program, the computer program being executed by the processor to implement the steps of the information transmission method of the unlicensed frequency band as described above.

Specifically, embodiments of the present disclosure also provide a network device. As shown in FIG. 13, the network device 1300 includes an antenna 131, a radio frequency device 132, and a baseband device 133. The antenna 131 is connected to the radio frequency device 132. In the uplink direction, the radio frequency device 132 receives information through the antenna 131 and transmits the received information to the baseband device 133 for processing. In the downlink direction, the baseband device 133 processes the information to be transmitted and transmits it to the radio frequency device 132. The radio frequency device 132 processes the received information and transmits it via the antenna 131.

The above-described band processing device may be located in the baseband device 133, and the method performed by the network device in the above embodiment may be implemented in the baseband device 133, which includes the processor 134 and the memory 135.

The baseband device 133 may include, for example, at least one baseband board on which a plurality of chips are disposed, as shown in FIG. 13, one of which is, for example, a processor 134, connected to the memory 135 to call a program in the memory 135 to execute The network device operation shown in the above method embodiment.

The baseband device 133 may further include a network interface 136 for interacting with the radio frequency device 132, such as a Common Public Radio Interface (CPRI).

The processor here may be a processor or a collective name of multiple processing elements. For example, the processor may be a CPU, an ASIC, or one or more configured to implement the method performed by the above network device. An integrated circuit, such as one or more microprocessor DSPs, or one or more field programmable gate array FPGAs. The storage element can be a memory or a collective name for a plurality of storage elements.

Memory 135 can be either volatile memory or non-volatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a Read-Only Memory (ROM), a Programmable ROM (Programmable ROM), or an Erasable PROM (EPROM). , electrically erasable programmable read only memory (EEPROM) or flash memory. The volatile memory may be a Random Access Memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous). DRAM (SDRAM for short), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM for short), enhanced synchronous dynamic random access memory (ESDRAM), synchronously connected dynamic random access memory ( Synchlink DRAM (SLDRAM for short) and Direct Memory Bus (DRRAM). The memory 135 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

In particular, the network device of some embodiments of the present disclosure further includes a computer program stored on the memory 135 and operable on the processor 134, and the processor 134 calls a computer program in the memory 135 to execute the execution of each module shown in FIG. Methods.

Specifically, when the computer program is called by the processor 134, it can be used to execute: transmitting the synchronization signal block SSB and/or the remaining minimum system information RMSI to the terminal on the target transmission resource of the unlicensed band.

Specifically, when the computer program is invoked by the processor 134, the method may be configured to: send, on the target transmission resource, at least two SSBs to the terminal, where the transmission resources corresponding to the at least two SSBs are frequency division multiplexed;

Or, on the target transmission resource, send an SSB and at least one padding signal to the terminal, where the transmission resources corresponding to the SSB and the padding signal are frequency division multiplexed.

Specifically, when the computer program is called by the processor 134, the RMSI is sent to the terminal, where the frequency domain resource of the data channel corresponding to the RMSI is non-contiguous;

Or transmitting, on the target transmission resource, at least two RMSIs to the terminal, where the transmission resources corresponding to the at least two RMSIs are frequency division multiplexed;

Alternatively, on the target transmission resource, an RMSI and at least one padding signal are sent to the terminal, where the transmission resource corresponding to the RMSI and the padding signal is frequency division multiplexed.

Specifically, when the computer program is invoked by the processor 134, the program can be used to: send an SSB and an RMSI to the terminal on the target transmission resource, where the transmission resources corresponding to the SSB and the RMSI are frequency division multiplexed, and the data corresponding to the RMSI. The frequency domain resources of the channel are continuous or discontinuous;

Or, on the target transmission resource, send an SSB and at least two RMSIs to the terminal, where the transmission resources corresponding to the SSB and the at least two RMSIs are frequency division multiplexed;

Transmitting at least two SSBs and one RMSI to the terminal on the target transmission resource; wherein the transmission resources corresponding to the at least two SSBs and the RMSI are frequency division multiplexed;

On the target transmission resource, an SSB, an RMSI, and at least one padding signal are sent to the terminal, where the transmission resources corresponding to the SSB and the RMSI and the at least one padding signal are frequency division multiplexed.

The network device may be a Global System of Mobile communication (GSM) or a Code Division Multiple Access (CDMA) base station (Base Transceiver Station, BTS for short) or a wideband code. A base station (NodeB, NB for short) in the Wideband Code Division Multiple Access (WCDMA), and may also be an evolved Node B (eNB or eNodeB) in LTE, or a relay station or an access point. Or a base station or the like in a future 5G network is not limited herein.

The network device in some embodiments of the present disclosure can solve the problem of sending SSB and RMSI on an unlicensed frequency band by adopting the foregoing solution, and can ensure that the network device sends the SSB and the RMSI to the terminal through the unlicensed frequency band, thereby ensuring the network device and the terminal. Normal communication between.

The above embodiment introduces the information transmission method of the unlicensed frequency band of the present disclosure from the network device side. The following embodiment will further introduce the information transmission method of the unlicensed frequency band on the terminal side with reference to the accompanying drawings.

As shown in FIG. 14, the information transmission method of the unlicensed frequency band of some embodiments of the present disclosure is applied to the terminal side, and includes the following steps:

Step 141: Receive synchronization signal block SSB information and/or remaining minimum system information RMSI on the target transmission resource of the unlicensed band.

The bandwidth occupied by the target transmission resource is greater than or equal to a preset percentage of the nominal channel bandwidth of the transmission channel of the unlicensed band. For example, for an unlicensed frequency band of 5 GHz, the target transmission resource used by the network device occupies a bandwidth greater than or equal to 80% of the nominal channel bandwidth of the transmission channel of the unlicensed band. For the unlicensed frequency band of 60 GHz, the target transmission resource used by the network device occupies a bandwidth greater than or equal to 70% of the nominal channel bandwidth of the transmission channel of the unlicensed band.

The information transmission method of the unlicensed frequency band of some embodiments of the present disclosure will be further described below in conjunction with specific application scenarios.

Scenario 1 corresponds to scenario 1 in the embodiment of the network device side, and step 141 includes but is not limited to the following manners:

Method 1: Receive at least two SSBs on the target transmission resource. The transmission resources corresponding to the at least two SSBs are frequency division multiplexed. The network device sends at least two SSBs in a frequency division multiplexing manner, and at least two SSBs are not adjacent in the frequency domain, and the SSB is transmitted at both ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy rate. This mode corresponds to the mode of the scenario in the embodiment of the network device, and therefore is not described here.

Manner 2: Receive an SSB and at least one padding signal on the target transmission resource. The transmission resources corresponding to the SSB and the padding signal are frequency division multiplexed. Since an SSB cannot meet the OCB requirement, the network device can increase the transmission of at least one padding signal when the frequency domain resource can be configured for the SSB. Among them, increasing the transmission position of the transmitted padding signal depends on the location of the SSB and the bandwidth required by the OCB. This mode corresponds to the second mode of the scenario in the embodiment of the network device, and therefore is not described here.

Scenario 2, corresponding to scenario 2 in the embodiment of the network device side, step 141 includes but is not limited to the following manners:

Manner 1: On the target transmission resource, an RMSI is received, where the frequency domain resources of the data channel corresponding to the RMSI are discontinuous. In this mode, if the network device adopts the data channel frequency domain resource continuous RMSI can not meet the OCB requirement, in order to meet the OCB requirement of the unlicensed band, the network device can adopt the discontinuous RMSI of the data channel frequency domain resource. This mode corresponds to the mode 1 in the scenario 2 in the embodiment of the network device, and therefore is not described here.

Manner 2: Receive at least two RMSIs on the target transmission resource, where the transmission resources corresponding to the at least two RMSIs are frequency division multiplexed. In this mode, the network device uses the frequency division multiplexing method to transmit the RMSI of the frequency domain resources of at least two data channels. To meet the OCB requirements of the unlicensed band, the network device configures the frequency domain resources for the RMSI to enable at least two RMSIs. The frequency domain is no longer immediately adjacent, and at least two RMSIs are transmitted across the nominal channel bandwidth of the transport channel to increase band occupancy. This mode corresponds to the second mode in the scenario 2 in the embodiment of the network device, and therefore is not described here.

The third mode receives an RMSI and at least one padding signal on the target transmission resource, where the transmission resource corresponding to the RMSI and the padding signal is frequency division multiplexed. Since the continuous RMSI of a data channel frequency domain resource cannot meet the OCB requirement, the network device can increase the transmission of at least one padding signal when the frequency domain resource can be configured for the RMSI. Among them, increasing the transmission position of the transmitted padding signal depends on the location of the RMSI and the bandwidth required by the OCB. This mode corresponds to the three-phase method in the scenario of the scenario in the network device side, and therefore is not described here.

Scenario 3 corresponds to scenario 3 in the embodiment of the network device. Step 141 includes but is not limited to the following manners:

Manner 1: On the target transmission resource, receive an SSB and an RMSI, where the transmission resources corresponding to the SSB and the RMSI are frequency division multiplexed, and the frequency domain resources of the data channel corresponding to the RMSI are continuous or discontinuous. In this mode, the network device uses the frequency division multiplexing method to transmit the RMSI and the SSB. To meet the OCB requirements of the unlicensed band, the network device configures the frequency domain resources for the SSB and the RMSI so that the SSB and the RMSI are no longer in the frequency domain. Neighbor, and the SSB and RMSI are transmitted at both ends of the nominal channel bandwidth of the transport channel to increase the band occupancy. This mode corresponds to the mode 1 in the scenario 3 in the embodiment of the network device, and therefore is not described here.

Manner 2: On the target transmission resource, receive an SSB and at least two RMSIs, where the transmission resources corresponding to the SSB and the at least two RMSIs are frequency division multiplexed. In this mode, the network device uses the frequency division multiplexing method to transmit the RMSI and the SSB. To meet the OCB requirements of the unlicensed band, the network device configures the frequency domain resources for the SSB and the RMSI so that the SSB and the RMSI are no longer in the frequency domain. Neighbor, and the SSB and RMSI are transmitted at both ends of the nominal channel bandwidth of the transport channel to increase the band occupancy. However, if the SSB+RMSI cannot meet the OCB requirements, for example, the SSB is located in the middle of the nominal channel bandwidth of the transmission channel, regardless of whether the RMSI is configured to the higher frequency side of the nominal channel bandwidth of the transmission channel or the lower frequency side. RMSI+SSB cannot meet OCB requirements. In this case, multiple RMSIs can be sent. Wherein, the sending position of the RMSI depends on the location of the SSB and the bandwidth required by the OCB. This mode corresponds to the second mode in the scenario three in the embodiment of the network device, and therefore is not described here.

Manner 3: On the target transmission resource, receive at least two SSBs and an RMSI, where at least two SSBs and the RMSI corresponding transmission resources are frequency division multiplexed. In this mode, the network device uses the frequency division multiplexing method to transmit the RMSI and the SSB. To meet the OCB requirements of the unlicensed band, the network device configures the frequency domain resources for the SSB and the RMSI so that the SSB and the RMSI are no longer in the frequency domain. Neighbor, and the SSB and RMSI are transmitted at both ends of the nominal channel bandwidth of the transport channel to increase the band occupancy. However, if the SSB+RMSI cannot meet the OCB requirements, for example, the SSB is located in the middle of the nominal channel bandwidth of the transmission channel, regardless of whether the RMSI is configured to the higher frequency side of the nominal channel bandwidth of the transmission channel or the lower frequency side. RMSI+SSB cannot meet OCB requirements. In this case, multiple SSBs can be sent. Among them, increasing the sending position of the transmitted SSB depends on the location of the SSB+RMSI and the bandwidth required by the OCB. This mode corresponds to the three-phase method in the scenario three in the embodiment of the network device, and therefore is not described here.

The fourth method, on the target transmission resource, receives an SSB, an RMSI, and at least one padding signal, where the transmission resources corresponding to the SSB and the RMSI and the padding signal are frequency division multiplexed. In this mode, the network device uses the frequency division multiplexing method to transmit the RMSI and the SSB. To meet the OCB requirements of the unlicensed band, the network device configures the frequency domain resources for the SSB and the RMSI so that the SSB and the RMSI are no longer in the frequency domain. Neighbor, and the SSB and RMSI are transmitted at both ends of the nominal channel bandwidth of the transport channel to increase the band occupancy. However, if the SSB+RMSI cannot meet the OCB requirements, for example, the SSB is located in the middle of the nominal channel bandwidth of the transmission channel, regardless of whether the RMSI is configured to the lower frequency side of the nominal channel bandwidth or the higher frequency side, RMSI+ SSB can't meet OCB requirements. In this case, it is possible to increase the transmission of at least one fill signal. Wherein, increasing the transmission position of the transmitted padding signal depends on the location of the SSB+RMSI and the bandwidth required by the OCB. This mode corresponds to the fourth method in the scenario three in the embodiment of the network device, and therefore is not described here.

Optionally, the padding signals involved in scenario 1, scenario 2, and scenario 3 may include, but are not limited to, a reference signal and/or a channel occupation signal. The reference signal includes: a channel state indication reference signal CSI-RS, and a demodulation reference signal. At least one of a DMRS, a sounding reference signal TRS, and a phase tracking pilot signal PTRS.

Wherein, when the SSB is at least two, at least two SSBs are repeatedly sent, or at least two SSBs are different. That is, in order to meet the OCB requirement, when the network device sends multiple SSBs in a frequency division multiplexing manner, the SSB may be a repeated transmission of the same SSB on different frequency domain resources, or may be multiple different SSBs. Different SSBs refer to different content carried.

Wherein, when the RMSI is at least two, at least two RMSIs are repeatedly transmitted, or at least two RMSIs are different. That is to say, in order to meet the OCB requirement, when the network device transmits multiple RMSIs by using frequency division multiplexing, the RMSI may be repeated transmission of the same RMSI on different frequency domain resources, or may be multiple different RMSIs. There are two ways to indicate the RMSI. If only the control channel location of one of the RMSIs is indicated in the SSB, this method is only suitable for two RMSIs to send the same content. If the location of the control channels of the two RMSIs is indicated in the SSB, the network device can transmit two different RMSIs, and the terminal can perform the RMSI detection at two locations according to the indication. Different RMSIs refer to different content carried.

The above embodiment describes the information transmission method of the unlicensed frequency band in different scenarios. The terminal corresponding thereto will be further introduced in the following with reference to the accompanying drawings.

As shown in FIG. 15, the terminal 1500 of some embodiments of the present disclosure can implement the details of the method for receiving the synchronization signal block SSB information and/or the remaining minimum system information RMSI on the target transmission resource of the unlicensed frequency band in the foregoing embodiment. And achieving the same effect, the terminal 1500 specifically includes the following functional modules:

The receiving module 1510 is configured to receive the synchronization signal block SSB information and/or the remaining minimum system information RMSI on the target transmission resource of the unlicensed frequency band.

The receiving module 1510 includes:

a first receiving submodule, configured to receive at least two SSBs on the target transmission resource, where the transmission resources corresponding to the at least two SSBs are frequency division multiplexed;

or,

The second receiving submodule is configured to receive, on the target transmission resource, an SSB and at least one padding signal, where the transmission resources corresponding to the SSB and the padding signal are frequency division multiplexed.

The receiving module 1510 includes:

a third receiving submodule, configured to receive an RMSI on the target transmission resource, where the frequency domain resource of the data channel corresponding to the RMSI is discontinuous;

or,

a fourth receiving submodule, configured to receive at least two RMSIs on the target transmission resource, where the transmission resources corresponding to the at least two RMSIs are frequency division multiplexed;

or,

And a fifth receiving submodule, configured to receive, on the target transmission resource, an RMSI and at least one padding signal, where the transmission resource corresponding to the RMSI and the padding signal is frequency division multiplexed.

The receiving module 1510 includes:

a sixth receiving submodule, configured to receive an SSB and an RMSI on the target transmission resource, where the transmission resources corresponding to the SSB and the RMSI are frequency division multiplexed, and the frequency domain resources of the data channel corresponding to the RMSI are continuous or Non-continuous

or,

a seventh receiving submodule, configured to receive, on the target transmission resource, an SSB and at least two RMSIs, where the transmission resources corresponding to the SSB and the at least two RMSIs are frequency division multiplexed;

or,

An eighth receiving submodule, configured to receive at least two SSBs and one RMSI on the target transmission resource, where the transmission resources corresponding to the at least two SSBs and the RMSI are frequency division multiplexed;

or,

The ninth receiving submodule is configured to receive, on the target transmission resource, an SSB, an RMSI, and at least one padding signal, where the transmission resources corresponding to the SSB and the RMSI and the padding signal are frequency division multiplexed.

It is to be noted that the terminal of some embodiments of the present disclosure can solve the problem of sending SSB and RMSI on an unlicensed frequency band by using the foregoing solution, and can ensure that the network device sends the SSB and the RMSI to the terminal through the unlicensed frequency band, thereby ensuring the network device. Normal communication with the terminal.

It should be noted that the division of each module of the above network device and terminal is only a division of logical functions. In actual implementation, it may be integrated into one physical entity in whole or in part, or may be physically separated. And these modules can all be implemented by software in the form of processing component calls; or all of them can be implemented in hardware form; some modules can be realized by processing component calling software, and some modules are realized by hardware. For example, the determining module may be a separately set processing element, or may be integrated in one of the above-mentioned devices, or may be stored in the memory of the above device in the form of program code, by a processing element of the above device. Call and execute the functions of the above determination module. The implementation of other modules is similar. In addition, all or part of these modules can be integrated or implemented independently. The processing elements described herein can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules may be completed by an integrated logic circuit of hardware in the processor element or an instruction in a form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above method, such as one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors ( A digital signal processor (DSP), or one or more Field Programmable Gate Arrays (FPGAs). For another example, when one of the above modules is implemented in the form of a processing component scheduler code, the processing component may be a general purpose processor, such as a central processing unit (CPU) or other processor that can call the program code. As another example, these modules can be integrated and implemented in the form of a system-on-a-chip (SOC).

In order to achieve the above objectives, FIG. 16 is a schematic diagram of a hardware structure of a terminal that implements various embodiments of the present disclosure. The terminal 160 includes, but is not limited to, a radio frequency unit 161, a network module 162, and an audio output unit 163. The input unit 164, the sensor 165, the display unit 166, the user input unit 167, the interface unit 168, the memory 169, the processor 1610, and the power source 1611 and the like. It will be understood by those skilled in the art that the terminal structure shown in Fig. 16 does not constitute a limitation of the terminal, and the terminal may include more or less components than those illustrated, or a combination of certain components, or different component arrangements. In some embodiments of the present disclosure, the terminal includes, but is not limited to, a mobile phone, a tablet, a notebook, a palmtop, an in-vehicle terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 161 is configured to send and receive data under the control of the processor 1610, specifically for receiving the synchronization signal block SSB information and/or the remaining minimum system information RMSI on the target transmission resource of the unlicensed frequency band.

The terminal of some embodiments of the present disclosure can solve the problem of sending SSB and RMSI on an unlicensed band by using the foregoing solution, and can ensure that the network device sends the SSB and the RMSI to the terminal through the unlicensed band, thereby ensuring the network device and the terminal. Normal communication.

It should be understood that, in some embodiments of the present disclosure, the radio frequency unit 161 may be configured to receive and transmit signals during or after receiving or transmitting information, and specifically, after receiving downlink data from the base station, processing the processor 1610; Send the uplink data to the base station. Generally, radio frequency unit 161 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 unit 161 can also communicate with the network and other devices through a wireless communication system.

The terminal provides the user with wireless broadband Internet access through the network module 162, such as helping the user to send and receive emails, browse web pages, and access streaming media.

The audio output unit 163 can convert the audio data received by the radio frequency unit 161 or the network module 162 or stored in the memory 169 into an audio signal and output as a sound. Moreover, the audio output unit 163 can also provide audio output (eg, call signal reception sound, message reception sound, etc.) associated with a particular function performed by the terminal 160. The audio output unit 163 includes a speaker, a buzzer, a receiver, and the like.

The input unit 164 is for receiving an audio or video signal. The input unit 164 may include a graphics processing unit (GPU) 1641 and a microphone 1642 that images an still picture or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The data is processed. The processed image frame can be displayed on the display unit 166. The image frames processed by the graphics processor 1641 may be stored in the memory 169 (or other storage medium) or transmitted via the radio unit 161 or the network module 162. The microphone 1642 can receive sound and can process such sound as audio data. The processed audio data can be converted to a format output that can be transmitted to the mobile communication base station via the radio unit 161 in the case of a telephone call mode.

Terminal 160 also includes at least one type of sensor 165, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 1661 according to the brightness of the ambient light, and the proximity sensor can close the display panel 1661 and/or when the terminal 160 moves to the ear. Or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity. It can be used to identify the terminal attitude (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; sensor 165 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared Sensors, etc., will not be described here.

The display unit 166 is for displaying information input by the user or information provided to the user. The display unit 166 can include a display panel 1661. The display panel 1661 can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

The user input unit 167 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 167 includes a touch panel 1671 and other input devices 1672. The touch panel 1671, also referred to as a touch screen, can collect touch operations on or near the user (such as the user using a finger, a stylus, or the like on the touch panel 1671 or near the touch panel 1671. operating). The touch panel 1671 may include two parts of a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information. The processor 1610 receives commands from the processor 1610 and executes them. In addition, the touch panel 1671 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 1671, the user input unit 167 may also include other input devices 1672. Specifically, other input devices 1672 may include, but are not limited to, a physical keyboard, function keys (such as a volume control button, a switch button, etc.), a trackball, a mouse, and a joystick, which are not described herein.

Further, the touch panel 1671 can be overlaid on the display panel 1661. After the touch panel 1671 detects a touch operation thereon or nearby, the touch panel 1671 transmits to the processor 1610 to determine the type of the touch event, and then the processor 1610 according to the touch. The type of event provides a corresponding visual output on display panel 1661. Although the touch panel 1671 and the display panel 1661 are used as two independent components to implement the input and output functions of the terminal in FIG. 16, in some embodiments, the touch panel 1671 and the display panel 1661 may be integrated. The input and output functions of the terminal are implemented, and are not limited herein.

The interface unit 168 is an interface in which an external device is connected to the terminal 160. For example, the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, and an audio input/output. (I/O) port, video I/O port, headphone port, and more. The interface unit 168 can be configured to receive input from an external device (eg, data information, power, etc.) and transmit the received input to one or more components within the terminal 160 or can be used at the terminal 160 and external devices Transfer data between.

Memory 169 can be used to store software programs as well as various data. The memory 169 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application 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 be stored according to Data created by the use of the mobile phone (such as audio data, phone book, etc.). Moreover, memory 169 can include high speed random access memory, and can 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 1610 is a control center of the terminal, which connects various parts of the entire terminal using various interfaces and lines, and executes by executing or executing software programs and/or modules stored in the memory 169, and calling data stored in the memory 169. The terminal's various functions and processing data, so as to monitor the terminal as a whole. The processor 1610 can include one or more processing units; optionally, the processor 1610 can integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, an application, etc., and a modulation solution The processor mainly handles wireless communication. It will be appreciated that the above described modem processor may also not be integrated into the processor 1610.

The terminal 160 can also include a power source 1611 (such as a battery) for powering various components. Alternatively, the power source 1611 can be logically coupled to the processor 1610 through a power management system to manage charging, discharging, and power management through the power management system. And other functions.

In addition, the terminal 160 includes some functional modules not shown, and details are not described herein again.

Optionally, some embodiments of the present disclosure further provide a terminal, including a processor 1610, a memory 169, a computer program stored on the memory 169 and executable on the processor 1610, the computer program being processed by the processor 1610. The processes of the foregoing embodiments of the information transmission method of the unlicensed frequency band are implemented, and the same technical effects can be achieved. To avoid repetition, details are not described herein again. The terminal may be a wireless terminal or a wired terminal, and the wireless terminal may be a device that provides voice and/or other service data connectivity to the user, a handheld device with a wireless connection function, or other processing device connected to the wireless modem. . The wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a mobile terminal. The computer, for example, can be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with the wireless access network. For example, Personal Communication Service (PCS) telephone, cordless telephone, Session Initiation Protocol (SIP) telephone, Wireless Local Loop (WLL) station, personal digital assistant (Personal) Digital Assistant, PDA for short. The wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, and a remote terminal. The access terminal, the user terminal (User Terminal), the user agent (User Agent), and the user device (User Device or User Equipment) are not limited herein.

Some embodiments of the present disclosure further provide a computer readable storage medium having a computer program stored thereon, the computer program being executed by a processor to implement various processes of the information transmission method embodiment of the unlicensed frequency band, And can achieve the same technical effect, in order to avoid repetition, no longer repeat here. The computer readable storage medium, such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

The computer readable storage medium of the present disclosure may be a volatile computer readable storage medium or a nonvolatile computer readable storage medium.

Those skilled in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present disclosure.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

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

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

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, a portion of the technical solution of the present disclosure that contributes in essence or to the related art or a part of the technical solution may be embodied in the form of a software product stored in a storage medium, including several The instructions are for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

Moreover, it should be noted that in the apparatus and method of the present disclosure, it is apparent that the various components or steps may be decomposed and/or recombined. These decompositions and/or recombinations should be considered as equivalents to the present disclosure. Also, the steps of performing the above-described series of processes may naturally be performed in chronological order in the order illustrated, but need not necessarily be performed in chronological order, and some steps may be performed in parallel or independently of each other. It will be appreciated by those skilled in the art that all or any of the steps or components of the methods and apparatus of the present disclosure may be in a network of any computing device (including a processor, storage medium, etc.) or computing device, in hardware, firmware The software, or a combination thereof, is implemented by those of ordinary skill in the art using their basic programming skills while reading the description of the present disclosure.

Thus, the objects of the present disclosure can also be achieved by running a program or a set of programs on any computing device. The computing device can be a well-known general purpose device. Accordingly, the objects of the present disclosure may also be realized by merely providing a program product including program code for implementing the method or apparatus. That is to say, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure. It will be apparent that the storage medium may be any known storage medium or any storage medium developed in the future. It should also be noted that in the apparatus and method of the present disclosure, it is apparent that various components or steps may be decomposed and/or recombined. These decompositions and/or recombinations should be considered as equivalents to the present disclosure. Also, the steps of performing the series of processes described above may naturally be performed in chronological order in the order illustrated, but need not necessarily be performed in chronological order. Certain steps may be performed in parallel or independently of one another.

The above is an alternative embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present disclosure. Within the scope of protection of the present disclosure.

Claims

An information transmission method for an unlicensed frequency band is applied to a network device side, and includes:

The synchronization signal block SSB and/or the remaining minimum system information RMSI are transmitted to the terminal on the target transmission resource of the unlicensed band.
The information transmission method of an unlicensed frequency band according to claim 1, wherein in the step of transmitting the synchronization signal block SSB and/or the remaining minimum system information RMSI to the terminal on the target transmission resource of the unlicensed frequency band, in the target The step of transmitting the SSB to the terminal on the transmission resource includes:

Transmitting, by the terminal, at least two SSBs to the terminal, where the transmission resources corresponding to the at least two SSBs are frequency division multiplexed;

Or, on the target transmission resource, send an SSB and at least one padding signal to the terminal, where the transmission resource corresponding to the padding signal is frequency division multiplexed.
The information transmission method of an unlicensed frequency band according to claim 1, wherein in the step of transmitting the synchronization signal block SSB and/or the remaining minimum system information RMSI to the terminal on the target transmission resource of the unlicensed frequency band, in the target The step of transmitting the RMSI to the terminal on the transmission resource includes:

Sending, by the target transmission resource, the RMSI to the terminal, where the frequency domain resource of the data channel corresponding to the RMSI is discontinuous;

Or transmitting, on the target transmission resource, at least two RMSIs to the terminal, where the transmission resources corresponding to the at least two RMSIs are frequency division multiplexed;

Or transmitting, on the target transmission resource, an RMSI and at least one padding signal to the terminal, where the transmission resource corresponding to the RMSI and the padding signal is frequency division multiplexed.
The information transmission method of an unlicensed frequency band according to claim 1, wherein in the step of transmitting the synchronization signal block SSB and/or the remaining minimum system information RMSI to the terminal on the target transmission resource of the unlicensed frequency band, in the target The step of transmitting the SSB and the RMSI to the terminal on the transmission resource includes:

Sending, on the target transmission resource, an SSB and an RMSI to the terminal, where the transmission resource corresponding to the SSM and the RMSI is frequency division multiplexed, and the frequency domain resource of the data channel corresponding to the RMSI Is continuous or discontinuous;

Or transmitting, on the target transmission resource, an SSB and at least two RMSIs to the terminal, where the transmission resources of the SSB corresponding to the at least two RMSIs are frequency division multiplexed;

Or transmitting, on the target transmission resource, at least two SSBs and one RMSI to the terminal, where the transmission resources corresponding to the RMSI of the at least two SSBs are frequency division multiplexed;

Or transmitting, on the target transmission resource, an SSB, an RMSI, and at least one padding signal to the terminal, where the transmission resource corresponding to the SSB and the RMSI and the at least one padding signal is a frequency division. Reusable.
The information transmission method of an unlicensed frequency band according to any one of claims 2 to 4, wherein the padding signal comprises: a reference signal and/or a channel occupation signal; and the reference signal comprises: a channel state indication reference signal CSI- At least one of RS, demodulation reference signal DMRS, sounding reference signal TRS, and phase tracking pilot signal PTRS.
The information transmission method of the unlicensed frequency band according to claim 2 or 4, wherein when the SSB is at least two, at least two SSBs are repeatedly transmitted, or the at least two SSBs are different.
The information transmission method of an unlicensed frequency band according to claim 3 or 4, wherein when the RMSI is at least two, at least two RMSIs are repeatedly transmitted, or the at least two RMSIs are different.
The information transmission method of the unlicensed frequency band according to claim 3 or 4, wherein the control channel corresponding to the RMSI comprises: a control resource set CORESET corresponding to the RMSI, and the data channel corresponding to the RMSI comprises: a transmission station The physical downlink shared channel PDSCH of the RMSI.
The information transmission method for an unlicensed frequency band according to any one of claims 1 to 4, wherein a bandwidth occupied by the target transmission resource is greater than or equal to a preset percentage of a nominal channel bandwidth of a transmission channel of the unlicensed frequency band.
A network device, including:

And a sending module, configured to send the synchronization signal block SSB and/or the remaining minimum system information RMSI to the terminal on the target transmission resource of the unlicensed band.
A network device, including:

a processor, a memory, and a computer program stored on the memory and operable on the processor, the processor executing the computer program, the processor implementing the method of any one of claims 1 to 9. The steps of the information transmission method of the unlicensed band.
An information transmission method for an unlicensed frequency band is applied to the terminal side, including:

The synchronization signal block SSB information and/or the remaining minimum system information RMSI are received on the target transmission resource of the unlicensed band.
The information transmission method of the unlicensed frequency band according to claim 12, wherein the step of receiving the synchronization signal block SSB information and/or the remaining minimum system information RMSI on the target transmission resource of the unlicensed frequency band comprises:

Receiving, by the target transmission resource, at least two SSBs, where the transmission resources corresponding to the at least two SSBs are frequency division multiplexed;

Or, on the target transmission resource, receiving an SSB and at least one padding signal, where the transmission resource corresponding to the padding signal and the padding signal is frequency division multiplexed.
The information transmission method of the unlicensed frequency band according to claim 12, wherein the step of receiving the synchronization signal block SSB information and/or the remaining minimum system information RMSI on the target transmission resource of the unlicensed frequency band comprises:

Receiving, on the target transmission resource, an RMSI, where frequency domain resources of the data channel corresponding to the RMSI are discontinuous;

Or, on the target transmission resource, receiving at least two RMSIs, where the transmission resources corresponding to the at least two RMSIs are frequency division multiplexed;

Or, on the target transmission resource, receiving an RMSI and at least one padding signal, where the RMSI transmission resource corresponding to the padding signal is frequency division multiplexed.
The information transmission method of the unlicensed frequency band according to claim 12, wherein the step of receiving the synchronization signal block SSB information and/or the remaining minimum system information RMSI on the target transmission resource of the unlicensed frequency band comprises:

Receiving, on the target transmission resource, an SSB and an RMSI, where the transmission resources corresponding to the SSM and the RMSI are frequency division multiplexed, and the frequency domain resources of the data channel corresponding to the RMSI are continuous or Non-continuous

Or, on the target transmission resource, receiving an SSB and at least two RMSIs, where the transmission resources of the SSB corresponding to the at least two RMSIs are frequency division multiplexed;

Or, on the target transmission resource, receiving at least two SSBs and one RMSI, where the transmission resources of the at least two SSBs corresponding to the RMSI are frequency division multiplexed;

Or, on the target transmission resource, receiving an SSB, an RMSI, and at least one padding signal, where the SSB, the RMSI, and the transmission resource corresponding to the padding signal are frequency division multiplexed.
The information transmission method of an unlicensed frequency band according to any one of claims 13 to 15, wherein the padding signal comprises: a reference signal and/or a channel occupancy signal; and the reference signal comprises: a channel state indication reference signal CSI- At least one of RS, demodulation reference signal DMRS, sounding reference signal TRS, and phase tracking pilot signal PTRS.
The information transmission method of an unlicensed frequency band according to claim 13 or 15, wherein when the SSB is at least two, at least two SSBs are repeatedly transmitted, or the at least two SSBs are different.
The information transmission method of an unlicensed frequency band according to claim 14 or 15, wherein when the RMSI is at least two, at least two RMSIs are repeatedly transmitted, or the at least two RMSIs are different.
The information transmission method of the unlicensed frequency band according to claim 14 or 15, wherein the control channel corresponding to the RMSI comprises: a control resource set CORESET corresponding to the RMSI, and the data channel corresponding to the RMSI comprises: a transmission station The physical downlink shared channel PDSCH of the RMSI.
The information transmission method for an unlicensed frequency band according to any one of claims 12 to 15, wherein a bandwidth occupied by the target transmission resource is greater than or equal to a preset percentage of a nominal channel bandwidth of a transmission channel of the unlicensed frequency band.
A terminal comprising:

And a receiving module, configured to receive the synchronization signal block SSB information and/or the remaining minimum system information RMSI on the target transmission resource of the unlicensed band.
A terminal comprising:

a processor, a memory, and a computer program stored on the memory and operable on the processor, the processor being implemented by the processor, the processor implementing any one of claims 12 to 20 The step of the information transmission method of the unlicensed frequency band.
A computer readable storage medium, wherein the computer readable storage medium stores a computer program, the computer program being executed by a processor to implement the method of any one of claims 1 to 9, 12 to 20 The steps of the information transmission method of the unlicensed band.