CN110391885B - Information transmission method of unauthorized frequency band, network equipment and terminal - Google Patents

Abstract

The invention discloses an information transmission method in an unlicensed frequency band, a network device and a terminal. The method includes: sending a synchronization signal block SSB and/or residual minimum system information RMSI to the terminal on the target transmission resource of the unlicensed frequency band. The embodiments of the present invention can solve the problem of sending SSB and RMSI on an unlicensed frequency band, and can ensure that the network device sends the SSB and RMSI to the terminal through the unlicensed frequency band, thereby ensuring normal communication between the network device and the terminal.

Description

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

technical field

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

Background technique

In a mobile communication system, an unlicensed band (unlicensed band) can be used as a supplement to a licensed band (licensed band) to help operators expand services. In order to be consistent with the deployment of the New Radio (NR) system and maximize the unlicensed access of the NR-based system as much as possible, the unlicensed frequency bands can work in the 5GHz, 37GHz and 60GHz frequency bands. The large bandwidth (80MHz or 100MHz) of the unlicensed frequency band can reduce the implementation complexity of network equipment and terminals. Since the unlicensed frequency band is shared by a variety of radio access technologies (Radio Access Technology, RATs), such as WiFi, radar, Long Term Evolution License Assisted Access (Long Term Evolution License Assisted Access, LTE-LAA), etc., the unlicensed frequency band is in the When used, 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), occupied bandwidth ( occupied channelbandwidth, OCB) and other rules. Among them, for the 5GHz frequency band, the OCB should be greater than or equal to 80% of the nominal channel bandwidth (nominal channel bandwidth), and for the 60GHz frequency band, the OCB should be greater than or equal to 70% of the nominal channel bandwidth.

In an NR system, for initial access, Radio Resource Management (RRM), etc., a network device needs to send a synchronization signal block (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 (Primary Synchronization Signal, PSS), a secondary synchronization signal (Secondary Synchronization Signal, SSS), and a physical broadcast channel (Physical Broadcast Channel, PBCH), and is periodically sent by a network device. In the connected state (CONNECTED), idle state (IDLE) or non-standalone (non-standalone) scenario, the period of the SSB can be configured as {5, 10, 20, 40, 80, 160}ms, but regardless of the period setting How much, the SSB in the SS burst set must complete the transmission within the 5ms window.

In the licensed frequency band of the NR system, there are three multiplexing methods for the transmission of SSB and Remaining Minimum System Information (RMSI), as shown in Figure 1a, SSB and RMSI are Time Division Multiple (TDM) methods, SSB and RMSI are sent sequentially in the time domain. Alternatively, as shown in Fig. 1b and Fig. 1c, SSB and RMSI are frequency division multiplexing (Frequency Division Multiplex, FDM). For sending, the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) carrying the RMSI and the SSB frequency division multiplexing are sent. As shown in Figure 1c, CORESET and PDSCH corresponding to RMSI are frequency-division multiplexed and sent with SSB. Among them, the frequency domain interval between SSB and RMSI does not exceed 2 RBs. Wherein, in the first frequency (Frequency1, FR1) (sub6GHz), only the TDM method as shown in FIG. 1a can be used. In the second frequency (Frequency2, FR2) (24.25GHz˜52.6GHz), any one of the methods shown in FIGS. 1 a to 1 c may be used.

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

SUMMARY OF THE INVENTION

The embodiments of the present invention provide an information transmission method, network device and terminal in an unlicensed frequency band, so as to solve the transmission problem of SSB and RMSI in the unlicensed frequency band.

In a first aspect, an embodiment of the present invention provides an information transmission method in an unlicensed frequency band, which is applied to a network device side, including:

On the target transmission resource of the unlicensed frequency band, the synchronization signal block SSB and/or the remaining minimum system information RMSI are sent to the terminal.

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

The sending module 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 frequency band.

In a third aspect, an embodiment of the present invention provides a network device. The network device includes a processor, a memory, and a computer program stored in the memory and running on the processor. When the processor executes the computer program, the above-mentioned unlicensed frequency band is implemented. The steps of the information transmission method.

In a fourth aspect, an embodiment of the present invention provides an information transmission method for an unlicensed frequency band, which is applied to a terminal side, including:

On the target transmission resource of the unlicensed frequency band, receive the synchronization signal block SSB information and/or the remaining minimum system information RMSI.

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

The receiving module 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.

In a sixth aspect, an embodiment of the present invention also provides a terminal, the terminal includes a processor, a memory, and a computer program stored in the memory and running on the processor, and the computer program is executed by the processor to realize the above-mentioned unlicensed frequency band. The steps of the information transmission method.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above-mentioned method for transmitting information in an unlicensed frequency band are implemented.

In this way, the embodiments of the present invention can solve the problem of sending SSB and RMSI in an unlicensed frequency band by adopting the above solution, and can ensure that the network device sends the SSB and RMSI to the terminal through the unlicensed frequency band, thereby ensuring normal communication between the network device and the terminal. .

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the drawings that are used in the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. , for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

Figures 1a to 1c show schematic diagrams of transmission resource mapping of SSB and RMSI in licensed frequency bands;

2 is a schematic flowchart of an information transmission method for an unlicensed frequency band on a network device side according to an embodiment of the present invention;

FIG. 3 shows a schematic diagram of transmission resource mapping in mode 1 of the scenario according to an embodiment of the present invention;

FIG. 4 shows a schematic diagram of transmission resource mapping in mode 2 of the scenario according to the embodiment of the present invention;

5a and 5b show schematic diagrams of transmission resource mapping in Mode 1 under Scenario 2 according to an embodiment of the present invention;

FIG. 6 shows a schematic diagram of transmission resource mapping in mode 2 under scenario 2 according to an embodiment of the present invention;

FIG. 7 shows a schematic diagram of transmission resource mapping in Mode 3 under Scenario 2 according to an embodiment of the present invention;

8a to 8f show schematic diagrams of transmission resource mapping in Mode 1 under Scenario 3 according to an embodiment of the present invention;

9a and 9b show schematic diagrams of transmission resource mapping in Mode 2 under Scenario 3 according to an embodiment of the present invention;

10a and 10b show schematic diagrams of transmission resource mapping in Mode 3 under Scenario 3 according to an embodiment of the present invention;

11a and 11b show schematic diagrams of transmission resource mapping in Mode 4 under Scenario 3 according to an embodiment of the present invention;

12 is a schematic diagram of a module structure of a network device according to an embodiment of the present invention;

13 shows a block diagram of a network device according to an embodiment of the present invention;

14 is a schematic flowchart of a method for transmitting information in an unlicensed frequency band on a terminal side according to an embodiment of the present invention;

FIG. 15 is a schematic diagram of a module structure of a terminal according to an embodiment of the present invention;

FIG. 16 shows a block diagram of a terminal according to an embodiment of the present invention.

Detailed ways

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

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the application described herein can, for example, be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices. Wherein "and/or" means at least one of the connected objects, for example, A and/or B, means A, or B, or A and B. In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as an example, illustration or illustration. Any embodiments or designs described as "exemplary" or "such as" in the embodiments of the present invention should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.

Embodiments of the present invention will be described below with reference to the accompanying drawings. The wireless communication system to which the embodiments of the present invention are applied may adopt a 5G system, or an evolved long-term evolution (Evolved Long Term Evolution, eLTE) system, or a subsequent evolved communication system. The wireless communication system may include: network equipment and user equipment. It should be noted that the above communication system may include multiple UEs, network equipment and may communicate with multiple UEs (transmit signaling or transmit data).

The network device provided in the embodiment of the present invention may be a base station, and the base station may be a commonly used base station, an evolved node base station (eNB), or a network device in a 5G system (for example, a next-generation base station) (next generation node base station, gNB) or transmission and reception point (transmission and reception point, TRP)) or cell and other equipment. The user equipment provided by the embodiments of the present invention 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).

An embodiment of the present invention provides an information transmission method for an unlicensed frequency band, which is applied to the network device side. As shown in FIG. 2 , the method may include:

Step 21: On the target transmission resource of the unlicensed frequency band, send the synchronization signal block SSB and/or the remaining minimum system information RMSI to the terminal.

In order to ensure that unlicensed frequency bands can be used normally under different wireless access technologies, unlicensed frequency bands must comply with certain regulations, such as LBT, MCOT, OCB, etc. Among them, the transmission methods of SSB and RMSI in the licensed frequency band shown in Figure 1a to Figure 1c are no longer applicable to the unlicensed frequency band because the transmission of SSB and RMSI cannot meet the OCB requirements. When network equipment transmits SSB and/or RMSI through unlicensed frequency bands, it must meet the requirements of OCB.

Wherein, 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 frequency band. For example, for the unlicensed frequency band of 5 GHz, the bandwidth occupied by the target transmission resource used by the network device is greater than or equal to 80% of the nominal channel bandwidth of the transmission channel of the unlicensed frequency band. For the unlicensed frequency band of 60 GHz, the bandwidth occupied by the target transmission resources used by the network device should be greater than or equal to 70% of the nominal bandwidth of the transmission channel of the unlicensed frequency band.

The information transmission method of the unlicensed frequency band according to the embodiment of the present invention will be further described below with reference to a specific application scenario and a schematic diagram of resource mapping.

Scenario 1. In step 21, the network device sends the SSB to the terminal on the target transmission resource. Among them, this scenario refers to a scenario in which the network device only sends SSB to the terminal within a certain time domain transmission range. For example, SSB and RMSI are TDM transmission methods, which corresponds to the transmission mapping relationship of the licensed frequency band shown in Figure 1a. In this scenario, the step of sending the SSB to the terminal by the network device on the target transmission resource can be implemented in but not limited to the following ways:

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

In this mode, if one SSB cannot meet the OCB requirements, the network device uses frequency division multiplexing to send at least two SSBs. sent at both ends to increase the frequency band occupancy. For example, as shown in Figure 3, the network device configures at least two SSBs on both sides of the nominal channel bandwidth of the transmission channel of the unlicensed frequency band, and increases the frequency domain interval, thereby ensuring that the frequency domain bandwidth occupied by the at least two SSBs satisfies the OCB requirements. Wherein, if one SSB is located on one side of the nominal channel bandwidth of the transmission channel (such as the lower frequency side of the nominal channel bandwidth), the network device may configure the other SSB to be on the side of the nominal channel bandwidth of the transmission channel On the other side (such as the higher frequency side of the nominal channel bandwidth), or, if one SSB is located on the higher frequency side of the nominal channel bandwidth of the transport channel, then the network equipment may configure another SSB to the transport channel The lower frequency side of the nominal channel bandwidth of the transmission channel, or an SSB is located in the middle part of the nominal channel bandwidth of the transmission channel. Neither the side with higher frequency nor the side with lower frequency can meet the OCB requirements. In this case, SSBs (not shown in the figure) can be added on both sides of the SSBs to meet the OCB requirements.

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

Since one SSB cannot meet the OCB requirement, when the network device can configure frequency domain resources for the SSB, it can additionally send at least one padding signal. Among them, the transmission position of the additionally transmitted filler signal depends on the position of the SSB and the bandwidth required by the OCB. As shown in Figure 4, the SSB is located on one side of the nominal channel bandwidth of the transmission channel (for example, the frequency in the nominal channel bandwidth is higher side of the transmission channel), then the filler signal can be configured to the other side of the nominal channel bandwidth of the transmission 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 transmission channel, then the filler signal can be configured to the higher frequency side of the nominal channel bandwidth of the transmission channel (not shown in the figure), or, The SSB is located in the middle part of the nominal channel bandwidth of the transmission channel, then a stuffing signal (not shown in the figure) can be added on both sides of the SSB.

Scenario 2: In step 21, the network device sends the RMSI to the terminal on the target transmission resource. Among them, this scenario refers to the scenario in which the network device only sends RMSI to the terminal within a certain time domain transmission range. For example, SSB and RMSI are TDM transmission methods, which corresponds to the transmission mapping relationship of the licensed frequency band shown in Figure 1a. In this scenario, the step of sending RMSI to the terminal by the network device on the target transmission resource can be implemented in but not limited to the following ways:

Mode 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 way, if the network equipment adopts the continuous RMSI of the data channel frequency domain resources, it cannot meet the OCB requirements. In order to meet the OCB requirements of the unlicensed frequency band, the network equipment can use the non-consecutive RMSI of the data channel frequency domain resources. As shown in Figures 5a and 5b, the network device can configure the data channel corresponding to the RMSI to the non-contiguous frequency domain transmission resource, so as to meet the OCB requirement. Among them, in FIG. 5a, the time domain resources of each data channel whose frequency domain resources are not consecutive are aligned. The time-domain resources of the discontinuous data channels corresponding to the RMSI in Fig. 5b are not aligned, but all do not exceed the time-domain resources of the control channel + data channel overlapping in the frequency domain, preferably, data that is different from the control channel frequency-domain resources of the RMSI channel, the time domain resources of the data channel overlap with the time domain resources of the control channel + data channel in the frequency domain.

Among them, it is worth noting that, regardless of whether the frequency domain resources of the data channel corresponding to the RMSI are continuous or discontinuous, 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 at least two data channels where the RMSI is non-consecutive in frequency domain resources. Wherein, at least two data channels with non-consecutive frequency domain resources may transmit the same information or different information.

Manner 2: On the target transmission resource, at least two RMSIs are sent to the terminal. The transmission resources corresponding to at least two RMSIs are frequency-division multiplexed.

In this mode, the network device uses frequency division multiplexing to send at least two RMSIs with continuous frequency domain resources of the data channel. In order to meet the OCB requirements of the unlicensed frequency band, the network device configures the frequency domain resources for the RMSI by using at least two RMSIs. Instead of being immediately adjacent in the frequency domain, at least two RMSIs are sent at both ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy. For example, as shown in Figure 6, the network device configures at least two RMSIs on both sides of the nominal channel bandwidth of the transmission channel in the unlicensed frequency band, and increases the frequency domain interval, thereby ensuring that the frequency domain bandwidth occupied by the at least two RMSIs satisfies the OCB requirements. Among them, if one RMSI is located on one side of the nominal channel bandwidth of the transmission channel (such as the lower frequency side of the nominal channel bandwidth), the network device can configure the other RMSI to be on the side of the nominal channel bandwidth of the transmission channel On the other side (such as the higher frequency side of the nominal channel bandwidth), or if one RMSI is on the higher frequency side of the transmission channel's nominal channel bandwidth, the network device may configure another RMSI to the transmission channel The lower frequency side of the nominal channel bandwidth, or, an RMSI is located in the middle part of the transmission channel, if an RMSI is added, no matter the new RMSI is configured to the higher frequency side of the nominal channel bandwidth of the transmission channel Or the side with the lower frequency cannot meet the OCB requirement. In this case, RMSI (not shown in the figure) can be added on both sides of the RMSI to meet the OCB requirement.

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

Since the continuous RMSI of a data channel frequency domain resource cannot meet the OCB requirement, when the network device can configure the frequency domain resource for the RMSI, it can additionally send at least one padding signal. Among them, the transmission position of the additionally transmitted filler signal depends on the position of the RMSI and the bandwidth required by the OCB. As shown in Figure 7, the RMSI is located on one side of the nominal channel bandwidth of the transmission channel (such as the higher frequency in the nominal channel bandwidth). side of the nominal channel bandwidth), then the filler signal can 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 filler signal can be configured to the higher frequency side of the nominal channel bandwidth (not shown in the figure), or the RMSI is located on the transmission channel In the middle part of the channel, a filler signal (not shown in the figure) can be added on both sides of the RMSI.

Scenario 3: In step 21, the network device sends the SSB and RMSI to the terminal on the target transmission resource. Among them, this scenario refers to the scenario in which the network device not only sends SSB to the terminal, but also needs to send RMSI to the terminal within a certain time domain transmission range. The transmission mapping relationship of the licensed frequency band shown. In this scenario, the step of sending SSB and RMSI to the terminal by the network device on the target transmission resource can be implemented in but not limited to the following ways:

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 frequency division multiplexing to transmit RMSI and SSB. In order to meet the OCB requirements of the unlicensed frequency band, the network device configures frequency domain resources for SSB and RMSI so that the SSB and RMSI are no longer closely related in the frequency domain. adjacent, and the SSB and RMSI are sent at both ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy. For example, as shown in Figure 8a, the network equipment configures the SSB and RMSI to the two sides of the nominal channel bandwidth of the transmission channel in the unlicensed frequency band respectively, and increases the frequency domain interval between the SSB and the RMSI, so as to ensure that the SSB and the RMSI occupy the The frequency domain bandwidth meets the OCB requirements. Among them, the sending position of RMSI depends on the position of SSB and the bandwidth required by OCB. For example, as shown in Figure 8a and Figure 8d, SSB is located on the lower frequency side of the nominal channel bandwidth of the transmission channel, then the network equipment can The RMSI is configured to the higher frequency side of the nominal channel bandwidth of the transmission channel, so that the RMSI+SSB can meet the OCB requirement. Wherein, Fig. 8a 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. Figure 8d corresponds to the transmission mode of the licensed frequency band in Figure 1b, and the time domain resources of the data channel corresponding to the RMSI are aligned with the time domain resources of the SSB. Or conversely, if the SSB is located on the higher frequency side of the nominal channel bandwidth of the transmission channel, then the network device can configure the RMSI to the lower frequency side of the nominal channel bandwidth of the transmission channel (not shown in the figure). ), so that RMSI+SSB can meet the OCB requirements. Among them, the OCB requirements corresponding to different frequency bands are different. For example, at 5GHz, the OCB requirement is greater than or equal to 70% of the channel nominal channel bandwidth, and at 60GHz, the OCB requirement is greater than or equal to 80% of the channel nominal channel bandwidth. Wherein, at this time, the frequency domain resources of the data channel corresponding to the RMSI are continuous.

If the continuous RMSI of the SSB+ data channel frequency domain resources cannot meet the OCB requirements, for example, the SSB is located in the middle part of the transmission channel, no matter the continuous RMSI of the data channel frequency domain resources is configured to the higher frequency side of the nominal channel bandwidth of the transmission channel On the lower frequency side, neither RMSI+SSB can meet the OCB requirements. In this case, the non-consecutive RMSI of the frequency domain resources of the data channel can be used. As shown in Figures 8b to 8f, the network device can configure the data channel corresponding to the RMSI to the frequency domain transmission resource with non-consecutive frequency domain resources, so that the RMSI of the non-contiguous frequency domain resource of the SSB+ data channel meets the OCB requirement. Among them, Figures 8b and 8c correspond to the transmission mode of the licensed frequency band in Figure 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. Among them, the time domain resources of the data channels with non-consecutive frequency domain resources corresponding to RMSI in 8b are all aligned, and the time domain resources of data channels with non-contiguous frequency domain resources corresponding to RMSI in 8c are not aligned, but they do not exceed the time domain of SSB The resource is preferably a data channel different from the frequency domain resource of the control channel of the RMSI, and the time domain resource of the data channel is aligned with the time domain resource of the SSB. Figures 8e and 8f correspond to the transmission mode of the licensed frequency band in Figure 1b, wherein, in Figure 8e, the time domain resources of the non-contiguous data channels corresponding to the RMSI in the frequency domain are all aligned, and the frequency domain resources corresponding to the RMSI in Figure 8f are non-consecutive. The time-domain resources of the data channel are not aligned, but they do not exceed the time-domain resources of the control channel + data channel that overlap in the frequency domain. Time domain resources of control channel + data channel overlapping with frequency domain.

Among them, it is worth noting that, regardless of whether the frequency domain resources of the data channel corresponding to the RMSI are continuous or discontinuous, 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 at least two data channels where the RMSI is non-consecutive in frequency domain resources. Wherein, at least two data channels with non-consecutive frequency domain resources may transmit the same information or different information.

Manner 2: On the target transmission resource, one SSB and at least two RMSIs are sent to the terminal, wherein the transmission resources corresponding to the SSB and the at least two RMSIs are frequency-division multiplexed.

In this mode, the network device uses frequency division multiplexing to transmit RMSI and SSB. In order to meet the OCB requirements of the unlicensed frequency band, the network device configures frequency domain resources for SSB and RMSI so that the SSB and RMSI are no longer closely related in the frequency domain. adjacent, and the SSB and RMSI are sent at both ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy. However, if the use of 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 or the lower frequency side of the nominal channel bandwidth of the transmission channel, RMSI+SSB Unable to meet OCB requirements. In this case, multiple RMSIs can be sent. The sending position of the RMSI depends on the position of the SSB and the bandwidth required by the OCB. As shown in Figures 9a and 9b, the SSB is located in the middle part of the nominal channel bandwidth of the transmission channel, and multiple RMSIs can be configured on both sides of the SSB, respectively. Among them, the number of RMSIs can be determined according to the specific requirements of the OCB. In order to simplify the terminal detection complexity, the number of RMSIs can be set to 2, and they are allocated to both sides of the SSB respectively. By increasing the distance between the SSB and the RMSI The frequency domain spacing makes RMSI+SSB+RMSI meet the OCB requirement. Wherein, Fig. 9a 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. Wherein, Fig. 9b corresponds to the transmission mode of the licensed frequency band in Fig. 1b, and the time domain resources of the data channel corresponding to the RMSI are aligned with the time domain resources 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 at least two SSBs and RMSI are frequency-division multiplexed.

In this mode, the network device uses frequency division multiplexing to transmit RMSI and SSB. In order to meet the OCB requirements of the unlicensed frequency band, the network device configures frequency domain resources for SSB and RMSI so that the SSB and RMSI are no longer closely related in the frequency domain. adjacent, and the SSB and RMSI are sent at both ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy. However, if SSB+RMSI cannot meet the OCB requirements, for example, the SSB is located in the middle part of the nominal channel bandwidth of the transmission channel, no matter whether the RMSI is configured to the higher frequency side or the lower frequency side of the nominal channel bandwidth of the transmission channel , RMSI + SSB can not meet the OCB requirements. In this case, multiple SSBs can be sent. Among them, the sending position of the SSB to be sent depends on the position 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 part of the nominal channel bandwidth of the transmission channel, and the RMSI is located in the nominal channel bandwidth of the transmission channel. On the higher frequency side of the channel bandwidth, then the SSBs for additional transmission can be configured to the lower frequency side of the nominal channel bandwidth of the transmission channel. Or conversely, if the SSB is located in the middle part of the nominal channel bandwidth of the transmission channel, and the RMSI is located on the lower frequency side of the nominal channel bandwidth of the transmission channel, then the SSB to be sent can be added to the nominal channel bandwidth of the transmission channel. The higher frequency side (not shown in the figure). The number of SSBs can be determined according to the specific requirements of the OCB. In order to simplify the terminal detection complexity, the number of SSBs can be set to 2, and the OCB requirements can be met by increasing the frequency domain interval. 10a 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. Wherein, Fig. 10b corresponds to the transmission mode of the licensed frequency band in Fig. 1b, and the time domain resources of the data channel corresponding to the RMSI are aligned with the time domain resources of the SSB.

Manner 4: On the target transmission resource, one SSB, one RMSI, and at least one stuffing signal are sent to the terminal, wherein the transmission resources corresponding to the SSB, the RMSI and the at least one stuffing signal are frequency-division multiplexed.

In this mode, the network device uses frequency division multiplexing to transmit RMSI and SSB. In order to meet the OCB requirements of the unlicensed frequency band, the network device configures frequency domain resources for SSB and RMSI so that the SSB and RMSI are no longer closely related in the frequency domain. adjacent, and the SSB and RMSI are sent at both ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy. However, if SSB+RMSI cannot meet the OCB requirements, for example, the SSB is located in the middle part of the nominal channel bandwidth of the transmission channel, no matter whether the RMSI is configured to the lower frequency side or the higher frequency side of the nominal channel bandwidth, the RMSI+ None of the SSBs can meet the OCB requirements. In this case, at least one stuffing signal may be sent additionally. Among them, the transmission position of the additionally transmitted filler signal depends on the position of SSB+RMSI and the bandwidth required by OCB. As shown in Figures 11a and 11b, the SSB is located in the middle part of the nominal channel bandwidth of the transmission channel, and the RMSI is located in the nominal channel bandwidth of the transmission channel. The higher frequency side of the channel bandwidth is called, then the filler signal can be configured to the lower frequency side of the nominal channel bandwidth of the transmission channel. Or conversely, if the SSB is located in the middle part of the nominal channel bandwidth of the transmission channel, and the RMSI is located on the lower frequency side of the nominal channel bandwidth of the transmission channel, then the filler signal can be configured to have a higher frequency in the nominal channel bandwidth of the transmission channel. The high side (not shown in the picture). Among them, the number of padding signals can be determined according to the specific requirements of OCB. In order to simplify the terminal detection complexity, the number of padding signals can be set to 1. By increasing the frequency domain interval, the RMSI+SSB+ padding signal satisfies the OCB requirement. 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. Wherein, Fig. 11b corresponds to the transmission mode of the licensed frequency band in Fig. 1b, and the time domain resources of the data channel corresponding to the RMSI are aligned with the time domain resources of the SSB.

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

Optionally, in scenario 1 and scenario 3, when there are at least two SSBs, at least two SSBs are repeatedly sent, or at least two SSBs are different. That is to say, in order to meet the OCB requirement, when the network device transmits multiple SSBs in a frequency division multiplexing manner, the SSBs may be repeated transmissions of the same SSB, or may be multiple different SSBs.

Optionally, in the second scenario and the third scenario, when there are at least two RMSIs, at least two RMSIs are sent repeatedly, or at least two RMSIs are different. That is to say, in order to meet the OCB requirements, when a network device transmits multiple RMSIs in a frequency division multiplexing manner, the RMSIs may be repeated transmissions of the same RMSI, or may be multiple different RMSIs. Among them, there are two ways to indicate the RMSI. If only the control channel position 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 positions of the control channels of two RMSIs are indicated in the SSB, the network device can send two different RMSIs, and the terminal can perform RMSI detection at the two positions respectively according to the instructions.

Wherein, 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 for transmitting the RMSI.

The information transmission method of the unlicensed frequency band according to the embodiment of the present invention can solve the problem of sending SSB and RMSI on the unlicensed frequency band by adopting the above scheme, and it can ensure that the network device sends the SSB and the RMSI to the terminal through the unlicensed frequency band, thereby ensuring that the network equipment normal communication with the terminal.

The above embodiments respectively introduce the information transmission methods of unlicensed frequency bands in different scenarios in detail, and the corresponding network devices will be further described in this embodiment below with reference to the accompanying drawings.

As shown in FIG. 12 , the network device 1200 in the embodiment of the present invention can implement the details of the method for sending 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 above-mentioned embodiment, To achieve 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 frequency band.

Wherein, the sending module 1210 includes:

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

or,

The second sending submodule is configured to send one SSB and at least one filling signal to the terminal on the target transmission resource, wherein the transmission resources corresponding to the SSB and the filling signal are frequency-division multiplexed.

Wherein, the sending module 1210 includes:

The third sending submodule is used to send an RMSI to the terminal on the target transmission resource, wherein the frequency domain resources of the data channel corresponding to the RMSI are discontinuous;

or,

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

or,

The fifth sending submodule is configured to send one RMSI and at least one filling signal to the terminal on the target transmission resource, wherein the transmission resources corresponding to the RMSI and the filling signal are frequency-division multiplexed.

Wherein, the sending module 1210 includes:

The sixth sending sub-module is used to send an SSB and an RMSI to the terminal on the target transmission resource, wherein 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. continuous or discontinuous;

or,

The seventh sending submodule is used to send one SSB and at least two RMSIs to the terminal on the target transmission resource, wherein the transmission resources corresponding to the SSB and the at least two RMSIs are frequency-division multiplexed;

or,

The eighth sending submodule is used to send 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;

or,

The ninth sending submodule is configured to send one SSB, one RMSI, and at least one stuffing signal to the terminal on the target transmission resource, wherein the transmission resources corresponding to the SSB, the RMSI and the at least one stuffing signal are frequency-division multiplexed.

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

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

Wherein, when there are at least two RMSIs, at least two RMSIs are sent repeatedly, or at least two RMSIs are different.

Wherein, 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 for transmitting the RMSI.

Wherein, 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 frequency band.

It is worth noting that the network device in the embodiment of the present invention can solve the problem of sending SSB and RMSI on the unlicensed frequency band by using the above solution, and can ensure that the network device sends the SSB and RMSI to the terminal through the unlicensed frequency band, thereby ensuring that the network device and the RMSI are sent to the terminal through the unlicensed band. Normal communication between terminals.

In order to better achieve the above object, an embodiment of the present invention also provides a network device, the network device includes a processor, a memory, and a computer program stored in the memory and running on the processor, where the processor executes the computer program At the same time, the steps in the information transmission method of the unlicensed frequency band as described above are realized. Embodiments of the invention also provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, implements the steps of the above-mentioned method for transmitting information in an unlicensed frequency band.

Specifically, an embodiment of the present invention also provides 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 sends the received information to the baseband device 133 for processing. In the downlink direction, the baseband device 133 processes the information to be sent and sends it to the radio frequency device 132 , and the radio frequency device 132 processes the received information and sends it out through the antenna 131 .

The above-mentioned frequency band processing apparatus may be located in the baseband apparatus 133 , and the method performed by the network device in the above embodiments may be implemented in the baseband apparatus 133 . The baseband apparatus 133 includes a processor 134 and a memory 135 .

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

The baseband device 133 may further include a network interface 136 for exchanging information with the radio frequency device 132 , and the interface is, for example, a Common Public Radio Interface (CPRI for short).

The processor here may be a processor or a collective term for multiple processing elements. For example, the processor may be a CPU, an ASIC, or one or more of the methods configured to implement the above network device execution methods. An integrated circuit, such as: one or more microprocessors DSP, or, one or more field programmable gate array FPGA, etc. The storage element may be one memory or a collective term for multiple storage elements.

Memory 135 may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. Among them, the non-volatile memory may be a read-only memory (Read-Only Memory, referred to as ROM), a programmable read-only memory (Programmable ROM, referred to as PROM), an erasable programmable read-only memory (Erasable PROM, referred to as EPROM) , Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM for short) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM for short), 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 RAM (DRAM), Synchronous DRAM , referred to as SDRAM), double data rate synchronous dynamic random access memory (Double DataRate SDRAM, referred to as DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, referred to as ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM) , referred to as SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, referred to as DRRAM). The memory 135 described herein is intended to include, but not be limited to, these and any other suitable types of memory.

Specifically, the network device in the embodiment of the present invention further includes: a computer program stored in the memory 135 and executable on the processor 134, and the processor 134 invokes the computer program in the memory 135 to execute the method executed by each module shown in FIG. 12 . .

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

Specifically, when the computer program is invoked by the processor 134, it can be used to execute: on the target transmission resource, send at least two SSBs to the terminal, wherein the transmission resources corresponding to the at least two SSBs are frequency-division multiplexed;

Alternatively, on the target transmission resource, one SSB and at least one stuffing signal are sent to the terminal, wherein the transmission resources corresponding to the SSB and the stuffing signal are frequency-division multiplexed.

Specifically, when the computer program is invoked by the processor 134, it can be used to execute: on the target transmission resource, send an RMSI to the terminal, wherein the frequency domain resources of the data channel corresponding to the RMSI are discontinuous;

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

Alternatively, on the target transmission resource, one RMSI and at least one stuffing signal are sent to the terminal, wherein the transmission resources corresponding to the RMSI and the stuffing signal are frequency-division multiplexed.

Specifically, when the computer program is called by the processor 134, it can be used to execute: on the target transmission resource, send an SSB and an RMSI to the terminal, wherein 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 one SSB and at least two RMSIs to the terminal, wherein the transmission resources corresponding to the SSB and the at least two RMSIs are frequency-division multiplexed;

On the target transmission resource, send 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;

On the target transmission resource, one SSB, one RMSI, and at least one filling signal are sent to the terminal, wherein the transmission resources corresponding to the SSB, the RMSI and the at least one filling signal are frequency-division multiplexed.

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

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

Wherein, when there are at least two RMSIs, at least two RMSIs are sent repeatedly, or at least two RMSIs are different.

Wherein, 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 for transmitting the RMSI.

Wherein, 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 frequency band.

The network device may be a base station (Base Transceiver Station, BTS for short) in Global System of Mobilecommunication (GSM for short) or Code Division Multiple Access (CDMA for short), or a broadband code division A base station (NodeB, NB) in multiple access (Wideband CodeDivision Multiple Access, WCDMA for short) can also be an evolved base station (Evolutional Node B, eNB or eNodeB for short) in LTE, or a relay station or an access point, or a future The base stations and the like in the 5G network are not limited here.

The network device in the embodiment of the present invention can solve the problem of sending SSB and RMSI in the unlicensed frequency band by adopting the above solution, and can ensure that the network device sends the SSB and RMSI to the terminal through the unlicensed frequency band, thereby ensuring the communication between the network device and the terminal. normal communication.

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

As shown in FIG. 14 , the information transmission method for an unlicensed frequency band according to an embodiment of the present invention, applied to the terminal side, includes the following steps:

Step 141: 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.

Wherein, 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 frequency band. For example, for the unlicensed frequency band of 5 GHz, the bandwidth occupied by the target transmission resource used by the network device is greater than or equal to 80% of the nominal channel bandwidth of the transmission channel of the unlicensed frequency band. For the unlicensed frequency band of 60 GHz, the bandwidth occupied by the target transmission resources used by the network device should be greater than or equal to 70% of the nominal channel bandwidth of the transmission channel of the unlicensed frequency band.

The information transmission method of the unlicensed frequency band according to the embodiment of the present invention will be further described below with reference to specific application scenarios.

Scenario 1, corresponding to scenario 1 in the embodiment on the network device side, step 141 includes but is not limited to the following methods:

Manner 1: Receive at least two SSBs on the target transmission resource. The transmission resources corresponding to at least two SSBs are frequency-division multiplexed. The network device transmits at least two SSBs by frequency division multiplexing. The at least two SSBs are no longer closely adjacent in the frequency domain, and the SSBs are sent at both ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy. This method corresponds to the first method in the first scenario in the embodiment on the network device side, so it is not repeated here.

Manner 2: Receive one SSB and at least one padding signal on the target transmission resource. The transmission resources corresponding to the SSB and the stuffing signal are frequency-division multiplexed. Since one SSB cannot meet the OCB requirement, when the network device can configure frequency domain resources for the SSB, it can additionally send at least one padding signal. Wherein, the transmission position of the additionally transmitted padding signal depends on the position of the SSB and the bandwidth required by the OCB. This method corresponds to the second method in the first scenario in the embodiment on the network device side, so it is not repeated here.

Scenario 2: Corresponding to scenario 2 in the embodiment on the network device side, step 141 includes but is not limited to the following methods:

Manner 1: On the target transmission resource, an RMSI is received, wherein the frequency domain resources of the data channel corresponding to the RMSI are discontinuous. In this way, if the network equipment adopts the continuous RMSI of the data channel frequency domain resources, it cannot meet the OCB requirements. In order to meet the OCB requirements of the unlicensed frequency band, the network equipment can use the non-consecutive RMSI of the data channel frequency domain resources. This method corresponds to the first method in the second scenario in the embodiment on the network device side, so it is not repeated here.

Manner 2: On the target transmission resource, at least two RMSIs are received, wherein the transmission resources corresponding to the at least two RMSIs are frequency-division multiplexed. In this mode, the network device uses frequency division multiplexing to send at least two RMSIs with continuous frequency domain resources of the data channel. In order to meet the OCB requirements of the unlicensed frequency band, the network device configures the frequency domain resources for the RMSI so that at least two RMSIs are in the frequency domain. The frequency domain is no longer immediately adjacent, and at least two RMSIs are sent at both ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy. This method corresponds to the second method in the second scenario in the embodiment on the network device side, so it is not repeated here.

Manner 3: On the target transmission resource, receive one RMSI and at least one stuffing signal, wherein the transmission resources corresponding to the RMSI and the stuffing signal are frequency-division multiplexed. Since the continuous RMSI of a data channel frequency domain resource cannot meet the OCB requirement, when the network device can configure the frequency domain resource for the RMSI, it can additionally send at least one padding signal. Among them, the transmission position of the additionally transmitted padding signal depends on the position of the RMSI and the bandwidth required by the OCB. This method corresponds to the three-phase method in the second scenario in the network device side embodiment, so it is not repeated here.

Scenario 3: Corresponding to scenario 3 in the embodiment on the network device side, step 141 includes but is not limited to the following methods:

Manner 1: On the target transmission resource, receive one SSB and one RMSI, wherein 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 frequency division multiplexing to transmit RMSI and SSB. In order to meet the OCB requirements of the unlicensed frequency band, when the network device configures frequency domain resources for SSB and RMSI, the SSB and RMSI are no longer closely related in the frequency domain. Neighbors, while the SSB and RMSI are sent at both ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy. This method corresponds to the first method in the third scenario in the network device side embodiment, so it is not repeated here.

Manner 2: On the target transmission resource, one SSB and at least two RMSIs are received, wherein the transmission resources corresponding to the SSB and the at least two RMSIs are frequency-division multiplexed. In this mode, the network device uses frequency division multiplexing to transmit RMSI and SSB. In order to meet the OCB requirements of the unlicensed frequency band, when the network device configures frequency domain resources for SSB and RMSI, the SSB and RMSI are no longer closely related in the frequency domain. Neighbors, while the SSB and RMSI are sent at both ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy. However, if SSB+RMSI cannot meet the OCB requirements, for example, the SSB is located in the middle part of the nominal channel bandwidth of the transmission channel, no matter whether the RMSI is configured to the higher frequency side or the lower frequency side of the nominal channel bandwidth of the transmission channel , RMSI + SSB can not meet the OCB requirements. In this case, multiple RMSIs can be sent. Among them, the sending position of RMSI depends on the position of SSB and the bandwidth required by OCB. This method corresponds to the second method in the third scenario in the embodiment on the network device side, so it is not repeated here.

Manner 3: On the target transmission resource, at least two SSBs and one RMSI are received, wherein the transmission resources corresponding to the at least two SSBs and the RMSI are frequency-division multiplexed. In this mode, the network device uses frequency division multiplexing to transmit RMSI and SSB. In order to meet the OCB requirements of the unlicensed frequency band, when the network device configures frequency domain resources for SSB and RMSI, the SSB and RMSI are no longer closely related in the frequency domain. Neighbors, while the SSB and RMSI are sent at both ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy. However, if SSB+RMSI cannot meet the OCB requirements, for example, the SSB is located in the middle part of the nominal channel bandwidth of the transmission channel, no matter whether the RMSI is configured to the higher frequency side or the lower frequency side of the nominal channel bandwidth of the transmission channel , RMSI + SSB can not meet the OCB requirements. In this case, multiple SSBs can be sent. Wherein, the transmission position of the SSB to be sent depends on the position of the SSB+RMSI and the bandwidth required by the OCB. This method corresponds to the three-phase method in the third scenario in the embodiment on the network device side, so it is not repeated here.

Manner 4: On the target transmission resource, receive one SSB, one RMSI, and at least one stuffing signal, wherein the transmission resources corresponding to the SSB, the RMSI and the stuffing signal are frequency-division multiplexed. In this mode, the network device uses frequency division multiplexing to transmit RMSI and SSB. In order to meet the OCB requirements of the unlicensed frequency band, when the network device configures frequency domain resources for SSB and RMSI, the SSB and RMSI are no longer closely related in the frequency domain. Neighbors, while the SSB and RMSI are sent at both ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy. However, if SSB+RMSI cannot meet the OCB requirements, for example, the SSB is located in the middle part of the nominal channel bandwidth of the transmission channel, no matter whether the RMSI is configured to the lower frequency side or the higher frequency side of the nominal channel bandwidth, the RMSI+ None of the SSBs can meet the OCB requirements. In this case, at least one stuffing signal may be sent additionally. Wherein, the transmission position of the additionally transmitted padding signal depends on the position of the SSB+RMSI and the bandwidth required by the OCB. This method corresponds to the method 4 in the third scenario in the embodiment on the network device side, so it is not repeated here.

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

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

Wherein, when there are at least two RMSIs, at least two RMSIs are sent repeatedly, or at least two RMSIs are different. That is to say, in order to meet the OCB requirements, when a network device transmits multiple RMSIs in a frequency division multiplexing manner, the RMSIs may be repeated transmissions of the same RMSI on different frequency domain resources, or may be multiple different RMSIs. Among them, there are two ways to indicate the RMSI. If only the control channel position 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 positions of the control channels of two RMSIs are indicated in the SSB, the network device can send two different RMSIs, and the terminal can perform RMSI detection at the two positions respectively according to the instructions. Different RMSI refers to carrying different content.

Wherein, 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 for transmitting the RMSI.

The information transmission method of the unlicensed frequency band according to the embodiment of the present invention can solve the problem of sending SSB and RMSI on the unlicensed frequency band by adopting the above scheme, and it can ensure that the network device sends the SSB and the RMSI to the terminal through the unlicensed frequency band, thereby ensuring that the network equipment normal communication with the terminal.

The above embodiments introduce information transmission methods for unlicensed frequency bands in different scenarios, and the corresponding terminals will be further introduced below with reference to the accompanying drawings.

As shown in FIG. 15 , the terminal 1500 according to the embodiment of the present invention can realize 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 above embodiment, and achieve For 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.

Wherein, the receiving module 1510 includes:

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

or,

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

Wherein, the receiving module 1510 includes:

The third receiving submodule is used to receive an RMSI on the target transmission resource, wherein the frequency domain resources of the data channel corresponding to the RMSI are discontinuous;

or,

a fourth receiving sub-module, configured to receive at least two RMSIs on the target transmission resources, wherein the transmission resources corresponding to the at least two RMSIs are frequency-division multiplexed;

or,

The fifth receiving sub-module is configured to receive one RMSI and at least one filling signal on the target transmission resource, wherein the transmission resources corresponding to the RMSI and the filling signal are frequency-division multiplexed.

Wherein, the receiving module 1510 includes:

The sixth receiving sub-module is used to receive an SSB and an RMSI on the target transmission resource, wherein 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;

or,

a seventh receiving submodule, configured to receive one SSB and at least two RMSIs on the target transmission resource, wherein 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, wherein 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 one SSB, one RMSI, and at least one stuffing signal on the target transmission resource, wherein the transmission resources corresponding to the SSB, the RMSI and the stuffing signal are frequency-division multiplexed.

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

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

Wherein, when there are at least two RMSIs, at least two RMSIs are sent repeatedly, or at least two RMSIs are different.

Wherein, 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 for transmitting the RMSI.

Wherein, 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 frequency band.

It is worth noting that the terminal in the embodiment of the present invention can solve the problem of sending SSB and RMSI in the unlicensed frequency band by adopting the above solution, and can ensure that the network device sends the SSB and RMSI to the terminal through the unlicensed frequency band, thereby ensuring that the network device and the terminal are transmitted. normal communication between them.

It should be noted that it should be understood that the above division of each module of the network device and the terminal is only a division of logical functions, and may be fully or partially integrated into one physical entity in actual implementation, or may be physically separated. And these modules can all be implemented in the form of software calling through processing elements; they can also all be implemented in hardware; some modules can also be implemented in the form of calling software through processing elements, and some modules can be implemented in hardware. For example, the determination module may be a separately established processing element, or may be integrated into a certain chip of the above-mentioned device to be implemented, in addition, it may also be stored in the memory of the above-mentioned device in the form of program code, and a certain processing element of the above-mentioned device may Call and execute the function of the above determined module. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together, and can also be implemented independently. The processing element described here may be an integrated circuit with signal processing capability. In the implementation process, each step of the above-mentioned method or each of the above-mentioned modules can be completed by an integrated logic circuit of hardware in the processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), or one or more microprocessors ( digital signal processor, referred to as DSP), or, one or more Field Programmable Gate Array (Field Programmable Gate Array, referred to as FPGA) and the like. For another example, when one of the above modules is implemented in the form of a processing element scheduling program code, the processing element may be a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU for short) or other processors that can call program codes. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC for short).

In order to better achieve the above purpose, further, FIG. 16 is a schematic diagram of the hardware structure of a terminal for implementing various embodiments of the present invention. The terminal 160 includes but is not limited to: a radio frequency unit 161, a network module 162, 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, the power supply 1611 and other components. Those skilled in the art can understand that the terminal structure shown in FIG. 16 does not constitute a limitation on the terminal, and the terminal may include more or less components than the one shown, or combine some components, or arrange different components. In the embodiment of the present invention, the terminal includes but is not limited to a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 161 is used to send and receive data under the control of the processor 1610, and is specifically used 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.

By adopting the above solution, the terminal in the embodiment of the present invention can solve the problem of sending SSB and RMSI in the unlicensed frequency band, and can ensure that the network device sends the SSB and RMSI to the terminal through the unlicensed frequency band, thereby ensuring normal communication between the network device and the terminal. .

It should be understood that, in this embodiment of the present invention, the radio frequency unit 161 can be used for receiving and sending signals during sending and receiving of information or during a call. Specifically, after receiving the downlink data from the base station, it is processed by the processor 1610; The uplink data is sent to the base station. Typically, the 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 frequency 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 may convert audio data received by the radio frequency unit 161 or the network module 162 or stored in the memory 169 into audio signals and output as sound. Also, the audio output unit 163 may also provide audio output related to a specific function performed by the terminal 160 (eg, call signal reception sound, message reception sound, etc.). The audio output unit 163 includes a speaker, a buzzer, a receiver, and the like.

The input unit 164 is used to receive audio or video signals. The input unit 164 may include a graphics processor (Graphics Processing Unit, GPU) 1641 and a microphone 1642. The graphics processor 1641 captures images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode data is processed. The processed image frames may 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 frequency unit 161 or the network module 162 . The microphone 1642 can receive sound and can process such sound into audio data. The processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 161 for output in the case of a telephone call mode.

Terminal 160 also includes at least one sensor 165, such as light sensors, motion sensors, 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 turn off the display panel 1661 and/or when the terminal 160 is moved to the ear. or backlight. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; the sensor 165 may also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared Sensors, etc., will not be repeated here.

The display unit 166 is used to display information input by the user or information provided to the user. The display unit 166 may include a display panel 1661, and the display panel 1661 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 167 may be used to receive input numerical or character information, and generate key signal input 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 by the user on or near it (such as the user's finger, stylus, etc., any suitable object or accessory on or near the touch panel 1671). operate). The touch panel 1671 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the 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 it into contact coordinates, and then sends it to the touch controller. To the processor 1610, the command sent by the processor 1610 is received and executed. 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, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which are not described herein again.

Further, the touch panel 1671 can be covered on the display panel 1661. When the touch panel 1671 detects a touch operation on or near it, it transmits it to the processor 1610 to determine the type of the touch event, and then the processor 1610 determines the type of the touch event according to the touch The type of event provides corresponding visual output on display panel 1661. Although in FIG. 16, the touch panel 1671 and the display panel 1661 are used as two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 1671 and the display panel 1661 can be integrated to form Realize the input and output functions of the terminal, which is not limited here.

The interface unit 168 is an interface for connecting an external device to the terminal 160 . For example, external devices may include wired or wireless headset ports, external power (or battery charger) ports, wired or wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input/output (I/O) ports, video I/O ports, headphone ports, and more. The interface unit 168 may be used to receive input (eg, data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 160 or may be used to communicate between the terminal 160 and the external device. transfer data between.

The memory 169 may be used to store software programs as well as various data. The memory 169 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of the mobile phone (such as audio data, phone book, etc.), etc. Additionally, memory 169 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 1610 is the control center of the terminal, using various interfaces and lines to connect various parts of the entire terminal, by running or executing the software programs and/or modules stored in the memory 169, and calling the data stored in the memory 169. Various functions of the terminal and processing data, so as to monitor the terminal as a whole. The processor 1610 may include one or more processing units; preferably, the processor 1610 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem The processor mainly handles wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1610.

The terminal 160 may also include a power supply 1611 (such as a battery) for supplying power to various components. Preferably, the power supply 1611 may be logically connected to the processor 1610 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. Function.

In addition, the terminal 160 includes some unshown functional modules, which will not be repeated here.

Preferably, an embodiment of the present invention further provides a terminal, including a processor 1610, a memory 169, a computer program stored in the memory 169 and running on the processor 1610, and the computer program is implemented when the processor 1610 executes it. The various processes of the above-mentioned embodiments of the information transmission method for an unlicensed frequency band can achieve the same technical effect, and to avoid repetition, details are not repeated here. 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 users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem . A wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), and the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal Mobile devices, which may be portable, pocket-sized, hand-held, computer-embedded, or vehicle-mounted, for example, exchange language and/or data with the wireless access network. For example, a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (Personal Digital Assistant) Assistant, referred to as PDA) and other devices. A 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, an access A terminal (Access Terminal), a user terminal (User Terminal), a user agent (User Agent), and a user device (User Device or User Equipment) are not limited here.

Embodiments of the present invention further provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, each process of the above-mentioned embodiments of the method for transmitting information in an unlicensed frequency band is implemented, and can To achieve the same technical effect, in order to avoid repetition, details are not repeated here. The computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction 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 technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

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

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

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

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes.

In addition, it should be pointed out that, in the apparatus and method of the present invention, obviously, each component or each step can be decomposed and/or recombined. These disaggregations and/or recombinations should be considered as equivalents of the present invention. Also, the steps of performing the above-mentioned series of processes can naturally be performed in chronological order in the order described, but need not necessarily be performed in chronological order, and some steps can be performed in parallel or independently of each other. Those of ordinary skill in the art can understand that all or any steps or components of the method and device of the present invention can be implemented in any computing device (including a processor, storage medium, etc.) or a network of computing devices in hardware, firmware, etc. , software or a combination thereof, which can be realized by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

Accordingly, the objects of the present invention can also be achieved by running a program or set of programs on any computing device. The computing device may be a known general purpose device. Therefore, the object of the present invention can also be achieved only by providing a program product containing program code for implementing the method or apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any known storage medium or any storage medium developed in the future. It should also be pointed out that, in the apparatus and method of the present invention, obviously, each component or each step can be decomposed and/or recombined. These disaggregations and/or recombinations should be considered as equivalents of the present invention. Also, the steps of executing the above-described series of processes can naturally be executed in chronological order in the order described, but need not necessarily be executed in chronological order. Certain steps may be performed in parallel or independently of each other.

The above are the preferred embodiments of the present invention, and it should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles described in the present invention, and these improvements and modifications are also included in the present invention. within the scope of protection of the invention.

Claims (9)

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

sending residual minimum system information RMSI to a terminal on target transmission resources of an unauthorized frequency band;

in the step of sending the remaining minimum system information RMSI to the terminal on the target transmission resource of the unlicensed frequency band, the step of sending the RMSI to the terminal on the target transmission resource includes:

transmitting one RMSI to the terminal on the target transmission resource, wherein the frequency domain resource of the data channel corresponding to the RMSI is discontinuous;

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

2. The method of claim 1, wherein the control channel corresponding to the RMSI comprises: a control resource set, CORESET, corresponding to the RMSI, the data channel corresponding to the RMSI including: and transmitting the Physical Downlink Shared Channel (PDSCH) of the RMSI.

3. A network device, comprising:

a sending module, configured to send remaining minimum system information RMSI to a terminal on a target transmission resource in an unlicensed frequency band;

the sending module comprises:

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

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

4. A network device, comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the method for information transmission in unlicensed frequency band according to any one of claims 1 to 2 when executing the computer program.

5. An information transmission method of an unlicensed frequency band is applied to a terminal side, and is characterized by comprising the following steps:

receiving residual minimum system information RMSI on target transmission resources of an unauthorized frequency band;

the step of receiving the remaining minimum system information RMSI on the target transmission resource of the unlicensed frequency band comprises the following steps:

receiving a RMSI on the target transmission resource, wherein the frequency domain resource of the data channel corresponding to the RMSI is discontinuous;

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

6. The method as claimed in claim 5, wherein the control channel corresponding to the RMSI includes: a control resource set, CORESET, corresponding to the RMSI, the data channel corresponding to the RMSI including: and transmitting the Physical Downlink Shared Channel (PDSCH) of the RMSI.

7. A terminal, comprising:

a receiving module, configured to receive remaining minimum system information RMSI on a target transmission resource in an unlicensed frequency band;

the receiving module includes:

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

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

8. A terminal, characterized in that the terminal comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method for information transmission in unlicensed frequency band according to any one of claims 5 to 6.

9. A computer-readable storage medium, having a computer program stored thereon, wherein the computer program, when being executed by a processor, implements the steps of the method for information transmission in unlicensed frequency band according to any one of claims 1 to 2 and 5 to 6.

Images