CN110391885B

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

Info

Publication number: CN110391885B
Application number: CN201810360685.9A
Authority: CN
Inventors: 姜蕾; 吴凯; 鲁智
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-04-20
Filing date: 2018-04-20
Publication date: 2020-11-13
Anticipated expiration: 2038-04-20
Also published as: WO2019201144A1; CN110391885A

Abstract

The invention discloses an information transmission method of an unauthorized frequency band, network equipment and a terminal, wherein the method comprises the following steps: and sending a synchronous signal block SSB and/or residual minimum system information RMSI to the terminal on the target transmission resource of the unlicensed frequency band. The embodiment of the invention can solve the problem of sending the SSB and the RMSI on the unauthorized frequency band, and can ensure that the network equipment sends the SSB and the RMSI to the terminal through the unauthorized frequency band, thereby ensuring the normal communication between the network equipment and the terminal.

Description

Information transmission method of unauthorized frequency band, network equipment and terminal

Technical Field

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

Background

In a mobile communication system, an unlicensed band (unlicensed band) may be used as a supplement to a licensed band (licensed band) to help an operator to expand the capacity of a service. In order to keep consistent with New Radio (NR) system deployment and maximize the unlicensed access based on the NR system as much as possible, the unlicensed frequency band may operate in 5GHz, 37GHz, and 60GHz frequency bands. The large bandwidth (80MHz or 100MHz) of the unlicensed band can reduce the implementation complexity of network devices and terminals. Since the unlicensed frequency band is shared by multiple Radio Access Technologies (RATs), such as WiFi, radar, Long Term Evolution licensed Assisted Access (LTE-LAA), etc., the unlicensed frequency band must meet certain regulations (regulations) to ensure that all devices can fairly use the resources, such as Listen Before Talk (LBT), Maximum Channel Occupancy Time (MCOT), occupied bandwidth (OCB), etc. Wherein, for the 5GHz band, the OCB is greater than or equal to 80% of the nominal channel bandwidth (nominal channel bandwidth), and for the 60GHz band, the OCB is greater than or equal to 70% of the nominal channel bandwidth.

In the NR system, in order to perform initial access, Radio Resource Management (RRM), etc., a network device needs to transmit a Synchronization Signal Block (SSB) for a terminal to perform measurement and evaluation, etc. The SSB is composed of a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a Physical Broadcast Channel (PBCH), and is periodically transmitted by a network device. In a CONNECTED (CONNECTED), IDLE (IDLE) or non-independent (non-standby) scenario, the period of the SSB may be configured as {5, 10, 20, 40, 80, 160} ms, but the SSB in the synchronization signal burst set (SS burst set) completes transmission within a 5ms window no matter how long the period is set.

In the authorized frequency band of the NR System, there are three multiplexing modes for transmitting the SSB and the Remaining Minimum System Information (RMSI), as shown in fig. 1a, the SSB and the RMSI are Time Division Multiplexing (TDM) modes, and the SSB and the RMSI are transmitted in Time domain sequentially. Alternatively, as shown in fig. 1b and fig. 1c, the SSB and the RMSI are Frequency Division Multiplexing (FDM), wherein, as shown in fig. 1b, a Control Resource set (core set) of the RMSI is transmitted first, and a Physical Downlink Shared Channel (PDSCH) carrying the RMSI and the SSB are Frequency Division multiplexed. As shown in fig. 1c, the CORESET and PDSCH corresponding to the RMSI are frequency division multiplexed with the SSB for transmission. Wherein the frequency domain separation between the SSB and the RMSI is no more than 2 RBs. In the first Frequency (Frequency1, FR1) (sub6GHz), only the TDM scheme shown in fig. 1a can be used. In the second Frequency (Frequency2, FR2) (24.25 GHz-52.6 GHz), any of the methods as shown in FIGS. 1a to 1c can be used.

For an unlicensed frequency band, the transmission of the SSB and the RMSI needs to meet the OCB requirement, and if a transmission mode of the licensed frequency band is adopted, the transmission bandwidths of the SSB and the RMSI do not meet the OCB requirement.

Disclosure of Invention

The embodiment of the invention provides an information transmission method of an unauthorized frequency band, network equipment and a terminal, which aim to solve the problem of transmission of SSB and RMSI of the unauthorized frequency band.

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

and sending a synchronous signal block SSB and/or residual minimum system information RMSI to the terminal on the target transmission resource of the unlicensed frequency band.

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

and the sending module is used for sending the synchronous signal block SSB and/or the residual minimum system information RMSI to the terminal on the target transmission resource of the unauthorized frequency band.

In a third aspect, an embodiment of the present invention provides a network device, where the network device includes a processor, a memory, and a computer program stored in the memory and operable on the processor, and when the processor executes the computer program, the steps of the information transmission method in the unlicensed frequency band are implemented.

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

and receiving the SSB information and/or the Residual Minimum System Information (RMSI) on the target transmission resources of the unlicensed frequency band.

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

and the receiving module is used for receiving the SSB information and/or the residual minimum system information RMSI on the target transmission resources of the unlicensed frequency band.

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

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

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

Drawings

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

Fig. 1a to 1c are schematic diagrams illustrating transmission resource mapping of SSB and RMSI in the licensed band;

fig. 2 is a flowchart illustrating an information transmission method for an unlicensed frequency band at a network device side according to an embodiment of the present invention;

fig. 3 is a transmission resource mapping diagram according to a first embodiment of the present invention;

fig. 4 is a schematic diagram of transmission resource mapping in a second mode according to an embodiment of the present invention;

fig. 5a and 5b are schematic diagrams illustrating transmission resource mapping according to a first mode in a second scenario of the embodiment of the present invention;

fig. 6 is a schematic diagram illustrating transmission resource mapping in a second mode according to a second embodiment of the present invention;

fig. 7 is a schematic diagram of transmission resource mapping in a third mode under a scenario two according to an embodiment of the present invention;

fig. 8a to 8f are schematic diagrams illustrating transmission resource mapping according to a first mode in a third scenario of the present invention;

fig. 9a and 9b are schematic diagrams illustrating transmission resource mapping in a second manner in a third scenario according to an embodiment of the present invention;

fig. 10a and 10b are schematic diagrams illustrating transmission resource mapping in a third mode according to a third scenario of the embodiment of the present invention;

fig. 11a and 11b are schematic diagrams illustrating transmission resource mapping in a fourth manner in a third scenario according to an embodiment of the present invention;

FIG. 12 is a block diagram of a network device according to an embodiment of the present invention;

FIG. 13 is a block diagram of a network device of an embodiment of the present invention;

fig. 14 is a flowchart illustrating an information transmission method of a terminal side unlicensed frequency band according to an embodiment of the present invention;

fig. 15 is a schematic block diagram 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 Description

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

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Where "and/or" means at least one of the connected objects, e.g., 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 examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

Embodiments of the present invention are described below with reference to the accompanying drawings. The wireless communication system applied in the embodiment of the present invention may be a 5G system, an Evolved Long Term Evolution (lte) system, or a subsequent Evolved communication system. The wireless communication system may include: a network device and a user device. It should be noted that the communication system may include a plurality of UEs, the network device and may communicate (transmit signaling or transmit data) with a plurality of UEs.

The network device provided in the embodiment of the present invention may be a base station, which may be a commonly used base station, an evolved node base station (eNB), or a network device in a 5G system (e.g., a next generation base station (gNB) or a Transmission and Reception Point (TRP)) or a cell, and the like. The user equipment provided by the embodiment of the invention can be a Mobile phone, a tablet Computer, a notebook Computer, an Ultra-Mobile Personal Computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like.

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

step 21: and sending a synchronous signal block SSB and/or residual minimum system information RMSI to the terminal on the target transmission resource of the unlicensed frequency band.

In order to ensure that the unlicensed frequency band can be used normally under different radio access technologies, the unlicensed frequency band must meet certain regulations, such as LBT, MCOT, OCB, etc., when in use. As shown in fig. 1a to 1c, the transmission modes of SSB and RMSI in the licensed band are no longer suitable for the unlicensed band because the transmission modes of SSB and RMSI cannot meet the OCB requirement. When the network device performs SSB and/or RMSI transmission via the unlicensed frequency band, the OCB requirement must be satisfied.

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. For example, for an unlicensed frequency band of 5GHz, the target transmission resource used by the network device occupies a nominal channel bandwidth of a transmission channel of the unlicensed frequency band, where the bandwidth is greater than or equal to 80%. For the unlicensed frequency band of 60GHz, the bandwidth occupied by the target transmission resource adopted by the network device is 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 with reference to a specific application scenario and a resource mapping diagram.

In the first scenario, in step 21, the network device sends an SSB to the terminal on the target transmission resource. The scenario refers to a scenario in which the network device only sends the SSB to the terminal within a certain time domain transmission range, for example, the SSB and the RMSI are in a TDM transmission manner, that is, a transmission mapping relationship corresponding to the authorized frequency band shown in fig. 1 a. In this scenario, the step of the network device sending the SSB to the terminal on the target transmission resource may be implemented by, but is not limited to, the following manners:

in the first mode, at least two SSBs are sent to the terminal on the target transmission resource. Wherein, the transmission resources corresponding to at least two SSBs are frequency division multiplexed.

In this way, one SSB cannot meet the OCB requirement, the network device transmits at least two SSBs in a frequency division multiplexing manner, and the at least two SSBs are no longer immediately adjacent in the frequency domain, and the SSBs are transmitted at both ends of the nominal channel bandwidth of the transmission channel to increase the band occupancy rate. For example, as shown in fig. 3, the network device configures at least two SSBs to two sides of a nominal channel bandwidth of a 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 SSBs meets the OCB requirement. Wherein if one SSB is located at one side of the nominal channel bandwidth of the transmission channel (e.g., the side with the lower frequency in the nominal channel bandwidth), the network device can allocate another SSB to the other side of the nominal channel bandwidth of the transmission channel (e.g., the side with the higher frequency in the nominal channel bandwidth), or if one SSB is located at the side with the higher frequency in the nominal channel bandwidth of the transmission channel, the network device can allocate another SSB to the side with the lower frequency in the nominal channel bandwidth of the transmission channel, or one SSB is located in the middle portion of the nominal channel bandwidth of the transmission channel, if one SSB is added, no matter the newly added SSB is allocated to the side with the higher frequency or the side with the lower frequency in the nominal channel bandwidth of the transmission channel, the OCB requirement cannot be met, and then SSBs (not shown in the figure) can be respectively added at both sides of the SSBs, thereby meeting the OCB requirements.

And secondly, sending an SSB and at least one filling signal to the terminal on the target transmission resource. Wherein, the transmission resource corresponding to the SSB and the filling signal is frequency division multiplexing.

Since one SSB cannot meet the OCB requirement, the network device may additionally send at least one padding signal when configuring frequency domain resources for the SSB. Wherein the transmission position of the padding signal for increasing transmission depends on the position of the SSB and the bandwidth required by the OCB, as shown in fig. 4, the SSB is located on one side of the nominal channel bandwidth of the transmission channel (e.g., the side with higher frequency in the nominal channel bandwidth), and then the padding signal can be allocated to the other side of the nominal channel bandwidth of the transmission channel (e.g., the side with lower frequency in the nominal channel bandwidth). Alternatively, if the SSB is located at the lower frequency side of the nominal channel bandwidth of the transmission channel, the padding signal may be allocated to the higher frequency side of the nominal channel bandwidth of the transmission channel (not shown in the figure), or if the SSB is located at the middle part of the nominal channel bandwidth of the transmission channel, a padding signal may be added to both sides of the SSB (not shown in the figure).

And a second scenario, in step 21, the network device sends the RMSI to the terminal on the target transmission resource. The scenario refers to a scenario in which the network device only sends the RMSI to the terminal within a certain time domain transmission range, for example, the SSB and the RMSI are in a TDM transmission manner, that is, a transmission mapping relationship corresponding to the authorized frequency band shown in fig. 1 a. In this scenario, the step of the network device sending the RMSI to the terminal on the target transmission resource may be implemented by, but is not limited to, the following manners:

in the first mode, one RMSI is sent to the terminal on the target transmission resource. Wherein, the frequency domain resource of the data channel corresponding to the RMSI is discontinuous.

In this way, if the network device uses the RMSI with continuous data channel frequency domain resources to meet the OCB requirement, the network device may use the RMSI with discontinuous data channel frequency domain resources to meet the OCB requirement of the unlicensed frequency band. As shown in fig. 5a and 5b, the network device may configure the data channel corresponding to the RMSI on the discontinuous frequency domain transmission resource, so as to satisfy the OCB requirement. In fig. 5a, the time domain resources of the data channels whose frequency domain resources are not consecutive are aligned. In fig. 5b, the time domain resources of the discontinuous data channels corresponding to the RMSI are not aligned, but do not exceed the time domain resources of the control channel + the data channel whose frequency domains overlap, and preferably, the time domain resources of the data channel are different from the frequency domain resources of the control channel of the RMSI, and the time domain resources of the control channel + the data channel whose frequency domains overlap.

It is worth pointing out 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, the control channel corresponding to the RMSI may indicate: the RMSI transmits information for at least two data channels whose frequency domain resources are discontinuous. At least two discontinuous data channels of frequency domain resources may transmit the same information or different information.

And the second mode is that at least two RMSIs are sent to the terminal on the target transmission resources. Wherein, the transmission resources corresponding to at least two RMSIs are frequency division multiplexed.

In this way, the network device sends at least two consecutive RMSIs of data channel frequency domain resources in a frequency division multiplexing manner, and in order to meet the OCB requirement of the unlicensed frequency band, when the network device configures the frequency domain resources for the RMSIs, the network device sends the at least two RMSIs at two ends of the nominal channel bandwidth of the transmission channel without making the at least two RMSIs immediately adjacent to each other in the frequency domain, so as to increase the frequency band occupancy rate. For example, as shown in fig. 6, the network device configures at least two RMSIs to two sides of a nominal channel bandwidth of a 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 meets the OCB requirement. Wherein, if one RMSI is located at one side of the nominal channel bandwidth of the transmission channel (e.g., the side with the lower frequency in the nominal channel bandwidth), the network device may allocate another RMSI to the other side of the nominal channel bandwidth of the transmission channel (e.g., the side with the higher frequency in the nominal channel bandwidth), or one RMSI is located at the side with the higher frequency in the nominal channel bandwidth of the transmission channel, the network device may allocate another RMSI to the side with the lower frequency in the nominal channel bandwidth of the transmission channel, or one RMSI is located in the middle part of the transmission channel, and if one RMSI is added, the new RMSI cannot satisfy the OCB requirement regardless of whether the new RMSI is allocated to the side with the higher frequency or the side with the lower frequency in the nominal channel bandwidth of the transmission channel, and then RMSI (not shown in the figure) may be added at both sides of the RMSI, so as to satisfy the OCB requirement.

And thirdly, sending 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 padding signal are frequency division multiplexed.

Since the continuous RMSI of a data channel frequency domain resource cannot meet the OCB requirement, the network device may additionally send at least one padding signal when configuring the frequency domain resource for the RMSI. Wherein the transmission position of the padding signal for increasing transmission depends on the position of the RMSI and the bandwidth required by the OCB, as shown in fig. 7, the RMSI is located on one side of the nominal channel bandwidth of the transmission channel (e.g., the side with higher frequency in the nominal channel bandwidth), and then the padding signal can be allocated to the other side of the nominal channel bandwidth (e.g., the side with lower frequency in the nominal channel bandwidth). Alternatively, the RMSI is located at the lower frequency side of the nominal channel bandwidth of the transport channel, and the padding signal may be allocated to the higher frequency side of the nominal channel bandwidth (not shown), or the RMSI is located in the middle part of the transport channel, and a padding signal may be added to both sides of the RMSI (not shown).

And thirdly, in the step 21, the network equipment sends the SSB and the RMSI to the terminal on the target transmission resource. The scenario refers to a scenario in which, within a certain time domain transmission range, the network device not only sends the SSB to the terminal, but also needs to send the RMSI to the terminal, for example, the SSB and the RMSI are in an FDM transmission manner, that is, a transmission mapping relationship corresponding to the authorized frequency band shown in fig. 1b or 1 c. In this scenario, the step of the network device sending the SSB and the RMSI to the terminal on the target transmission resource may be implemented by, but is not limited to, the following manners:

in the first mode, an SSB and an RMSI are sent to the terminal on the target transmission resource. 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 way, the network device sends the RMSI and the SSB in a frequency division multiplexing manner, and in order to meet the OCB requirement of the unlicensed frequency band, when the network device configures frequency domain resources for the SSB and the RMSI, the SSB and the RMSI are no longer immediately adjacent in the frequency domain, and the SSB and the RMSI are sent at both ends of the nominal channel bandwidth of the transmission channel, so as to increase the band occupancy rate. For example, as shown in fig. 8a, the network device configures the SSB and the RMSI to two sides of the nominal channel bandwidth of the transmission channel in the unlicensed frequency band, and increases the frequency domain interval between the SSB and the RMSI, thereby ensuring that the frequency domain bandwidth occupied by the SSB and the RMSI meets the OCB requirement. Where the location of RMSI transmission depends on the SSB location and the OCB required bandwidth, e.g., as shown in fig. 8a and 8d, the SSB is located on the lower frequency side of the nominal channel bandwidth of the transmission channel, then the network device may configure RMSI to the higher frequency side of the nominal channel bandwidth of the transmission channel, so that RMSI + SSB may satisfy the OCB requirement. Fig. 8a corresponds to the transmission mode of the authorized 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. Fig. 8d corresponds to the transmission mode of the licensed 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. Or vice versa, the SSB is located on the higher frequency side of the nominal channel bandwidth of the transport channel, and the network device may configure the RMSI to the lower frequency side of the nominal channel bandwidth of the transport channel (not shown in the figure), so that the RMSI + SSB can satisfy the OCB requirement. The OCB requirements corresponding to different frequency bands are different, for example, when 5GHz exists, the OCB requirement is greater than or equal to 70% of the nominal channel bandwidth of the channel, and when 60GHz exists, the OCB requirement is greater than or equal to 80% of the nominal channel bandwidth of the channel. Here, the frequency domain resources of the data channel corresponding to the RMSI are continuous.

If the RMSI with consecutive frequency domain resources of the SSB + data channel cannot satisfy the OCB requirement, for example, the SSB is located in the middle of the transmission channel, and the RMSI + SSB cannot satisfy the OCB requirement regardless of whether the RMSI with consecutive frequency domain resources of the data channel is allocated to the higher frequency side or the lower frequency side of the nominal channel bandwidth of the transmission channel. In this case, RMSI with discontinuous data channel frequency domain resources may be employed. As shown in fig. 8b to 8f, the network device may configure the data channel corresponding to the RMSI on the frequency domain transmission resources with discontinuous frequency domain resources, so that the RMSI with discontinuous SSB + data channel frequency domain resources meets the OCB requirement. Fig. 8b and 8c correspond to the transmission mode of the authorized 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. The time domain resources of the discontinuous data channels of the frequency domain resources corresponding to the RMSI in 8b are all aligned, the time domain resources of the discontinuous data channels of the frequency domain resources corresponding to the RMSI in 8c are not aligned but do not exceed the time domain resources of the SSB, and preferably, the time domain resources of the data channels are aligned with the time domain resources of the SSB, wherein the data channels are different from the frequency domain resources of the control channel of the RMSI. Fig. 8e and 8f correspond to the transmission mode of the authorized frequency band in fig. 1b, where time domain resources of the discontinuous data channels of the frequency domain resources corresponding to the RMSI in fig. 8e are all aligned, and time domain resources of the discontinuous data channels of the frequency domain resources corresponding to the RMSI in fig. 8f are not aligned but do not exceed time domain resources of the control channel + the data channel overlapped by the frequency domain, preferably, a data channel different from the frequency domain resources of the control channel of the RMSI, and time domain resources of the data channel are different from the time domain resources of the control channel + the data channel overlapped by the frequency domain.

And in the second mode, one SSB and at least two RMSIs are sent to the terminal on the target transmission resources, wherein the transmission resources corresponding to the SSB and the at least two RMSIs are frequency division multiplexed.

In this way, the network device sends the RMSI and the SSB in a frequency division multiplexing manner, and in order to meet the OCB requirement of the unlicensed frequency band, when the network device configures frequency domain resources for the SSB and the RMSI, the SSB and the RMSI are no longer immediately adjacent in the frequency domain, and the SSB and the RMSI are sent at both ends of the nominal channel bandwidth of the transmission channel, so as to increase the band occupancy rate. However, if the OCB requirement cannot be satisfied by using the SSB + RMSI, for example, the SSB is located in the middle of the transmission channel, the RMSI + SSB cannot satisfy the OCB requirement 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. In this case, multiple RMSIs may be sent. The RMSI transmission location depends on the SSB location and the bandwidth required by the OCB, as shown in fig. 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 respectively configured to both sides of the SSB, where the number of RMSIs can be determined according to the specific requirements of the OCB, and in order to simplify the terminal detection complexity, the number of RMSIs can be set to 2 and respectively configured to both sides of the SSB, and the RMSI + SSB + RMSI satisfies the OCB requirements by increasing the frequency domain interval between the SSB and the RMSI. Fig. 9a corresponds to the transmission mode of the authorized 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. Fig. 9b corresponds to the transmission mode of the authorized 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.

And the third mode is that at least two SSBs and one RMSI are sent 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.

In this way, the network device sends the RMSI and the SSB in a frequency division multiplexing manner, and in order to meet the OCB requirement of the unlicensed frequency band, when the network device configures frequency domain resources for the SSB and the RMSI, the SSB and the RMSI are no longer immediately adjacent in the frequency domain, and the SSB and the RMSI are sent at both ends of the nominal channel bandwidth of the transmission channel, so as to increase the band occupancy rate. However, if the OCB requirement cannot be satisfied by using the SSB + RMSI, for example, the SSB is located in the middle of the nominal channel bandwidth of the transmission channel, and the RMSI + SSB cannot satisfy the OCB requirement 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. In this case, multiple SSBs may be transmitted. Wherein the transmission position of the SSB for increasing transmission depends on the position of the SSB + RMSI and the bandwidth required by the OCB, as shown in fig. 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 on the higher frequency side of the nominal channel bandwidth of the transmission channel, so that the SSB for increasing transmission can be configured to the lower frequency side of the nominal channel bandwidth of the transmission channel. Or vice versa, the SSB is located in the middle part of the nominal channel bandwidth of the transport channel and the RMSI is located at the lower frequency side of the nominal channel bandwidth of the transport channel, then the SSB for increasing transmission may be allocated to the higher frequency side of the nominal channel bandwidth of the transport channel (not shown in the figure). The number of the SSBs can be determined according to the specific requirements of the OCBs, in order to simplify the detection complexity of the terminal, the number of the SSBs can be set to be 2, and the OCB requirements are met by increasing the frequency domain interval. Fig. 10a corresponds to the transmission mode of the authorized 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. Fig. 10b corresponds to the transmission mode of the authorized 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.

And a fourth mode, on the target transmission resource, sending an SSB, an RMSI, and at least one padding signal to the terminal, wherein the transmission resources corresponding to the SSB, the RMSI, and the at least one padding signal are frequency division multiplexed.

In this way, the network device sends the RMSI and the SSB in a frequency division multiplexing manner, and in order to meet the OCB requirement of the unlicensed frequency band, when the network device configures frequency domain resources for the SSB and the RMSI, the SSB and the RMSI are no longer immediately adjacent in the frequency domain, and the SSB and the RMSI are sent at both ends of the nominal channel bandwidth of the transmission channel, so as to increase the band occupancy rate. However, if the OCB requirement cannot be satisfied by using the SSB + RMSI, for example, the SSB is located in the middle of the nominal channel bandwidth of the transmission channel, and the RMSI + SSB cannot satisfy the OCB requirement regardless of whether the RMSI is allocated to the lower frequency side or the higher frequency side of the nominal channel bandwidth. In this case, the transmission of at least one padding signal may be increased. Wherein the transmission position of the padding signal for increasing transmission depends on the position of the SSB + RMSI and the bandwidth required by the OCB, as shown in fig. 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 on the higher frequency side of the nominal channel bandwidth of the transmission channel, so that the padding signal can be allocated to the lower frequency side of the nominal channel bandwidth of the transmission channel. Or vice versa, the SSB is located in the middle part of the nominal channel bandwidth of the transport channel and the RMSI is located at the lower frequency side of the nominal channel bandwidth of the transport channel, then the padding signal may be allocated to the higher frequency side of the nominal channel bandwidth of the transport channel (not shown in the figure). The number of the padding signals can be determined according to the specific requirements of the OCB, in order to simplify the detection complexity of the terminal, the number of the padding signals can be set to be 1, and the RMSI + SSB + padding signals can meet the requirements of the OCB by increasing the frequency domain interval. Fig. 11a corresponds to the transmission mode of the authorized 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. Fig. 11b corresponds to the transmission mode of the authorized 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 scenarios one, two and three may include, but are not limited to: a reference signal and/or a channel reservation signal (channel reservation signal). Reference signals include, but are not limited to: at least one of a Channel State indication Reference Signal (CSI-RS), a demodulation Reference Signal (De-Modulation Reference Signal, DMRS), a sounding Reference Signal (TRS), and a Phase Tracking Reference Signal (PTRS). When the padding signal is the reference signal, in order to meet the OCB requirement, the network device may further send the reference signal on frequency domain resources other than the SSB and/or the RMSI within a nominal channel bandwidth or a preset percentage of a nominal channel bandwidth of the transmission channel in the unlicensed frequency band.

Optionally, in scenario one and scenario three, when there are at least two SSBs, the at least two SSBs are repeatedly transmitted, or the at least two SSBs are different. That is, in order to meet the OCB requirement, when the network device transmits a plurality of SSBs in a frequency division multiplexing manner, the SSBs may be repeated transmission of the same SSB or may be a plurality of different SSBs.

Optionally, in scenario two and scenario three, when the RMSI is at least two, the at least two RMSIs are repeatedly transmitted, or the at least two RMSIs are different. That is, in order to meet the OCB requirement, when the network device transmits multiple RMSIs in the frequency division multiplexing manner, the RMSI may be repeated transmission of the same RMSI, or may be multiple different RMSIs. There are two ways for indicating the RMSI, and if the SSB only indicates the control channel location of one of the RMSIs, this way is only suitable for two RMSIs to transmit the same content. If the SSB indicates the locations of the control channels of the two RMSIs, the network device may send the two different RMSIs, and the terminal may perform RMSI detection at the two locations according to the indication.

Wherein, the control channel corresponding to the RMSI includes: the control resource set CORESET corresponding to the RMSI, the data channel corresponding to the RMSI comprises: and transmitting a Physical Downlink Shared Channel (PDSCH) of the RMSI.

By adopting the scheme, the information transmission method of the unauthorized frequency band of the embodiment of the invention can solve the problem of sending the SSB and the RMSI on the unauthorized frequency band, and can ensure that the network equipment sends the SSB and the RMSI to the terminal through the unauthorized frequency band, thereby ensuring the normal communication between the network equipment and the terminal.

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

As shown in fig. 12, the network device 1200 according to the embodiment of the present invention can implement details of a method for sending a synchronization signal block SSB and/or remaining minimum system information RMSI to a terminal on a target transmission resource in an unlicensed frequency band in the foregoing embodiment, and achieve the same effect, where the network device 1200 specifically includes the following functional modules:

a sending module 1210, configured to send a synchronization signal block SSB and/or remaining minimum system information RMSI to a terminal on a target transmission resource in an unlicensed frequency band.

Wherein, the sending module 1210 includes:

the first sending submodule is used for sending 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;

alternatively, the first and second electrodes may be,

and the second sending submodule is used for sending an SSB and at least one filling signal to the terminal on the target transmission resource, wherein the transmission resource corresponding to the SSB and the filling signal is frequency division multiplexed.

Wherein, the sending module 1210 includes:

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;

alternatively, the first and second electrodes may be,

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

alternatively, the first and second electrodes may be,

and a fifth sending sub-module, configured to send, to the terminal, one RMSI and at least one padding signal on the target transmission resource, where transmission resources corresponding to the RMSI and the padding signal are frequency division multiplexed.

Wherein, the sending module 1210 includes:

a sixth sending sub-module, configured to send an SSB and an RMSI to the terminal on the target transmission resource, where the transmission resources corresponding to the SSB and the RMSI are frequency division multiplexed, and frequency domain resources of a data channel corresponding to the RMSI are continuous or discontinuous;

alternatively, the first and second electrodes may be,

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

alternatively, the first and second electrodes may be,

an eighth sending submodule, configured 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;

alternatively, the first and second electrodes may be,

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

Wherein the fill signal comprises: reference signals and/or channel occupancy signals; the reference signal includes: the channel state indicates at least one of a reference signal CSI-RS, a demodulation reference signal 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 transmitted, or the at least two SSBs are different.

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

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.

It is worth pointing out that, by adopting the above-mentioned scheme, the network device according to the embodiment of the present invention can solve the problem of sending the SSB and the RMSI on the unlicensed frequency band, and can ensure that the network device sends the SSB and the RMSI to the terminal through the unlicensed frequency band, thereby ensuring normal communication between the network device and the terminal.

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

Specifically, the embodiment of the invention also provides a network device. As shown in fig. 13, the network device 1300 includes: antenna 131, rf device 132, and baseband device 133. The antenna 131 is connected to a radio frequency device 132. In the uplink direction, the rf 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 information to be transmitted and transmits the processed information to the rf device 132, and the rf device 132 processes the received information and transmits the processed information through the antenna 131.

The above-mentioned band processing means may be located in the baseband means 133, and the method performed by the network device in the above embodiment may be implemented in the baseband means 133, where the baseband means 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 disposed, as shown in fig. 13, wherein one chip, for example, the processor 134, is connected to the memory 135 to call up the program in the memory 135 to perform the network device operation shown in the above method embodiment.

The baseband device 133 may further include a network Interface 136 for exchanging information with the rf device 132, such as a Common Public Radio Interface (CPRI).

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

The memory 135 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (ddr Data Rate SDRAM), Enhanced SDRAM (ESDRAM), synchlronous DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 135 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Specifically, the network device of the embodiment of the present invention further includes: a computer program stored in the memory 135 and executable on the processor 134, the processor 134 calling the computer program in the memory 135 to execute the method performed by the modules shown in fig. 12.

In particular, the computer program when invoked by the processor 134 is operable to perform: and sending a synchronous signal block SSB and/or residual minimum system information RMSI to the terminal on the target transmission resource of the unlicensed frequency band.

In particular, the computer program when invoked by the processor 134 is operable to perform: at least two SSBs are sent to the terminal on the target transmission resources, wherein the transmission resources corresponding to the at least two SSBs are frequency division multiplexed;

or, on the target transmission resource, sending an SSB and at least one padding signal to the terminal, wherein the transmission resource corresponding to the SSB and the padding signal is frequency division multiplexed.

In particular, the computer program when invoked by the processor 134 is operable to perform: transmitting an RMSI to a terminal on target transmission resources, wherein frequency domain resources of a data channel corresponding to the RMSI are discontinuous;

or, at least two RMSIs are sent to the terminal on the target transmission resources, wherein the transmission resources corresponding to the at least two RMSIs are frequency division multiplexed;

or, on the target transmission resource, sending an RMSI and at least one padding signal to the terminal, wherein the transmission resources corresponding to the RMSI and the padding signal are frequency division multiplexed.

In particular, the computer program when invoked by the processor 134 is operable to perform: transmitting an SSB and an RMSI to the terminal on the target transmission resource, wherein the transmission resource corresponding to the SSB and the RMSI is frequency division multiplexing, and the frequency domain resource of the data channel corresponding to the RMSI is continuous or discontinuous;

or, on the target transmission resource, sending an 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, at least two SSBs and one RMSI are sent to the terminal; wherein, the transmission resources corresponding to the at least two SSBs and the RMSI are frequency division multiplexed;

and sending an SSB, an RMSI and at least one filling signal to the terminal on the target transmission resource, wherein the transmission resources corresponding to the SSB, the RMSI and the at least one filling signal are frequency division multiplexed.

The network device may be a Base Transceiver Station (BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB, eNodeB) in LTE, a relay Station, an Access point, a Base Station in a future 5G network, or the like, which is not limited herein.

By adopting the scheme, the network equipment in the embodiment of the invention can solve the problem of sending the SSB and the RMSI on the unauthorized frequency band, and can ensure that the network equipment sends the SSB and the RMSI to the terminal through the unauthorized frequency band, thereby ensuring the normal communication between the network equipment and the terminal.

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

As shown in fig. 14, the information transmission method of the unlicensed frequency band according to the embodiment of the present invention is applied to a terminal side, and includes the following steps:

step 141: and receiving the SSB information and/or the Residual Minimum System Information (RMSI) on the target transmission resources of the unlicensed frequency band.

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. For example, for an unlicensed frequency band of 5GHz, the target transmission resource used by the network device occupies a nominal channel bandwidth of a transmission channel of the unlicensed frequency band, where the bandwidth is greater than or equal to 80%. For the unlicensed frequency band of 60GHz, the bandwidth occupied by the target transmission resource adopted by the network device is 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 with reference to specific application scenarios.

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

in a first method, at least two SSBs are received on a target transmission resource. Wherein, the transmission resources corresponding to at least two SSBs are frequency division multiplexed. The network device transmits at least two SSBs in a frequency division multiplexing manner, wherein the at least two SSBs are no longer immediately adjacent in a frequency domain, and the SSBs are transmitted at two ends of a nominal channel bandwidth of a transmission channel to increase the band occupancy rate. This mode corresponds to the first mode in the first scenario in the network device side embodiment, and therefore, the description thereof is omitted here.

In a second aspect, an SSB and at least one padding signal are received on a target transmission resource. Wherein, the transmission resource corresponding to the SSB and the filling signal is frequency division multiplexing. Since one SSB cannot meet the OCB requirement, the network device may additionally send at least one padding signal when configuring frequency domain resources for the SSB. Wherein, the transmission position of the filling signal which is transmitted in an increasing way depends on the position of the SSB and the bandwidth required by the OCB. This mode corresponds to the mode two in the scenario one in the network device side embodiment, and therefore, the description thereof is omitted.

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

in a first method, an RMSI is received on a target transmission resource, where frequency domain resources of a data channel corresponding to the RMSI are discontinuous. In this way, if the network device uses the RMSI with continuous data channel frequency domain resources to meet the OCB requirement, the network device may use the RMSI with discontinuous data channel frequency domain resources to meet the OCB requirement of the unlicensed frequency band. This mode corresponds to the first mode in the second scenario in the network device side embodiment, and therefore, the description thereof is omitted here.

And a second mode, receiving at least two RMSIs on the target transmission resources, wherein the transmission resources corresponding to the at least two RMSIs are frequency division multiplexed. In the method, the network equipment sends at least two RMSIs with continuous data channel frequency domain resources in a frequency division multiplexing mode, and in order to meet the OCB requirement of an unlicensed frequency band, when the network equipment configures the frequency domain resources for the RMSIs, the network equipment enables the at least two RMSIs not to be adjacent on the frequency domain any more, and sends the at least two RMSIs at two ends of the nominal channel bandwidth of a transmission channel so as to increase the frequency band occupancy rate. This mode corresponds to the mode two in the scenario two in the network device side embodiment, and therefore, the description thereof is omitted here.

And a third mode, receiving an RMSI and at least one padding signal on the target transmission resource, wherein the transmission resource corresponding to the RMSI and the padding signal is frequency division multiplexed. Since the continuous RMSI of a data channel frequency domain resource cannot meet the OCB requirement, the network device may additionally send at least one padding signal when configuring the frequency domain resource for the RMSI. Wherein, the transmission position of the filling signal which is transmitted in an increasing way depends on the position of the RMSI and the bandwidth required by the OCB. This mode corresponds to the mode in the second scenario in the embodiment of the network device side, and therefore, the description thereof is omitted.

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

the first method is to receive an SSB and an RMSI on target transmission resources, where the transmission resources corresponding to the SSB and the RMSI are frequency division multiplexed, and the frequency domain resources of the data channel corresponding to the RMSI are continuous or discontinuous. In order to meet the OCB requirement of the unlicensed frequency band, when the network device configures frequency domain resources for the SSB and the RMSI, the network device causes the SSB and the RMSI not to be adjacent in the frequency domain, and sends the SSB and the RMSI at two ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy rate. This mode corresponds to the first mode in the third scenario in the network device side embodiment, and therefore, the description thereof is omitted here.

And the second mode is that one SSB and at least two RMSIs are received on the target transmission resources, wherein the transmission resources corresponding to the SSB and the at least two RMSIs are frequency division multiplexed. In order to meet the OCB requirement of the unlicensed frequency band, when the network device configures frequency domain resources for the SSB and the RMSI, the network device causes the SSB and the RMSI not to be adjacent in the frequency domain, and sends the SSB and the RMSI at two ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy rate. However, if the OCB requirement cannot be satisfied by using the SSB + RMSI, for example, the SSB is located in the middle of the nominal channel bandwidth of the transmission channel, and the RMSI + SSB cannot satisfy the OCB requirement 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. In this case, multiple RMSIs may be sent. Wherein, the sending position of the RMSI depends on the position of the SSB and the bandwidth required by the OCB. This mode corresponds to the mode two under the scenario three in the network device side embodiment, and therefore, the description thereof is omitted here.

And a third mode of receiving 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. In order to meet the OCB requirement of the unlicensed frequency band, when the network device configures frequency domain resources for the SSB and the RMSI, the network device causes the SSB and the RMSI not to be adjacent in the frequency domain, and sends the SSB and the RMSI at two ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy rate. However, if the OCB requirement cannot be satisfied by using the SSB + RMSI, for example, the SSB is located in the middle of the nominal channel bandwidth of the transmission channel, and the RMSI + SSB cannot satisfy the OCB requirement 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. In this case, multiple SSBs may be transmitted. Wherein, the sending position of the SSB added with sending depends on the position of the SSB + RMSI and the bandwidth required by the OCB. This mode corresponds to the mode in the third scenario in the embodiment of the network device side, and therefore, the description thereof is omitted.

And a fourth mode of receiving an SSB, an RMSI, and at least one padding signal on the target transmission resource, wherein the transmission resources corresponding to the SSB, the RMSI, and the padding signal are frequency division multiplexed. In order to meet the OCB requirement of the unlicensed frequency band, when the network device configures frequency domain resources for the SSB and the RMSI, the network device causes the SSB and the RMSI not to be adjacent in the frequency domain, and sends the SSB and the RMSI at two ends of the nominal channel bandwidth of the transmission channel to increase the frequency band occupancy rate. However, if the OCB requirement cannot be satisfied by using the SSB + RMSI, for example, the SSB is located in the middle of the nominal channel bandwidth of the transmission channel, and the RMSI + SSB cannot satisfy the OCB requirement regardless of whether the RMSI is allocated to the lower frequency side or the higher frequency side of the nominal channel bandwidth. In this case, the transmission of at least one padding signal may be increased. Wherein, the transmission position of the filling signal which is transmitted in an increasing way depends on the position of SSB + RMSI and the bandwidth required by OCB. This mode corresponds to the mode four in the scenario three in the network device side embodiment, and therefore, the description thereof is omitted here.

Optionally, the padding signals involved in the above scenarios one, two and three may include, but are not limited to: reference signals and/or channel occupancy signals; the reference signal includes: the channel state indicates at least one of a reference signal CSI-RS, a demodulation reference signal 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 transmitted, or the 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 the 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 different content being carried.

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

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

As shown in fig. 15, the terminal 1500 according to the embodiment of the present invention can implement details of a method for receiving synchronization signal block SSB information and/or remaining minimum system information RMSI on target transmission resources in an unlicensed frequency band in the foregoing embodiment, and achieve the same effect, where the terminal 1500 specifically includes the following functional modules:

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

Wherein, the receiving module 1510 comprises:

the first receiving submodule is used for receiving at least two SSBs on target transmission resources, wherein the transmission resources corresponding to the at least two SSBs are frequency division multiplexed;

alternatively, the first and second electrodes may be,

and the second receiving submodule is used for receiving an SSB and at least one filling signal on the target transmission resource, wherein the transmission resource corresponding to the SSB and the filling signal is frequency division multiplexed.

Wherein, the receiving module 1510 comprises:

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;

alternatively, the first and second electrodes may be,

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

alternatively, the first and second electrodes may be,

and a fifth receiving sub-module, configured to receive an RMSI and at least one padding signal on the target transmission resource, where transmission resources corresponding to the RMSI and the padding signal are frequency division multiplexed.

Wherein, the receiving module 1510 comprises:

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

alternatively, the first and second electrodes may be,

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

alternatively, the first and second electrodes may be,

an eighth receiving sub-module, configured to receive at least two SSBs and one RMSI on a target transmission resource, where transmission resources corresponding to the at least two SSBs and the RMSI are frequency division multiplexed;

alternatively, the first and second electrodes may be,

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

It is worth pointing out that, by adopting the above-mentioned scheme, the terminal of the embodiment of the present invention can solve the problem of sending the SSB and the RMSI on the unlicensed frequency band, and can ensure that the network device sends the SSB and the RMSI to the terminal through the unlicensed frequency band, thereby ensuring normal communication between the network device and the terminal.

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

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

To better achieve the above object, further, fig. 16 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present invention, where the terminal 160 includes, but is not limited to: radio frequency unit 161, network module 162, audio output unit 163, input unit 164, sensor 165, display unit 166, user input unit 167, interface unit 168, memory 169, processor 1610, power supply 1611, and the like. Those skilled in the art will appreciate that the terminal configuration shown in fig. 16 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

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

By adopting the scheme, the terminal of the embodiment of the invention can solve the problem of sending the SSB and the RMSI on the unauthorized frequency band, and can ensure that the network equipment sends the SSB and the RMSI to the terminal through the unauthorized frequency band, thereby ensuring the normal communication between the network equipment and the terminal.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 161 may be configured to receive and transmit signals during a message transmission or a call, and specifically, receive downlink data from a base station and then process the received downlink data to the processor 1610; in addition, the uplink data is transmitted to the base station. In general, 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 may also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user through the network module 162, such as helping the user send and receive e-mails, 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 an audio signal 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 (e.g., a call signal reception sound, a 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 an audio or video signal. The input Unit 164 may include a Graphics Processing Unit (GPU) 1641 and a microphone 1642, and the Graphics processor 1641 processes image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 166. The image frames processed by the graphic 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 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 161 in case of the phone call mode.

The terminal 160 also includes at least one sensor 165, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 1661 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 1661 and/or the backlight when the terminal 160 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensor 165 may further include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be described in detail herein.

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 numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 167 includes a touch panel 1671 and other input devices 1672. Touch panel 1671, also referred to as a touch screen, may collect touch operations by a user on or near touch panel 1671 (e.g., operations by a user on or near touch panel 1671 using a finger, a stylus, or any other suitable object or attachment). The touch panel 1671 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, and sends the touch point coordinates to the processor 1610 to receive and execute commands sent by the processor 1610. In addition, the touch panel 1671 may be implemented by using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to touch panel 1671, user input unit 167 can include other input devices 1672. In particular, other input devices 1672 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, a touch panel 1671 can be overlaid on the display panel 1661, and when the touch panel 1671 detects a touch operation on or near the touch panel 1671, the touch operation can be transmitted to the processor 1610 to determine the type of the touch event, and then the processor 1610 can provide a corresponding visual output on the display panel 1661 according to the type of the touch event. Although in fig. 16, the touch panel 1671 and the display panel 1661 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 1671 and the display panel 1661 may be integrated to implement the input and output functions of the terminal, and is not limited herein.

The interface unit 168 is an interface for connecting an external device to the terminal 160. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 168 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 160 or may be used to transmit data between the terminal 160 and an external device.

The memory 169 may be used to store software programs as well as various data. The memory 169 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the 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 a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 169 and calling data stored in the memory 169, thereby performing overall monitoring of the terminal. Processor 1610 may include one or more processing units; preferably, processor 1610 may integrate an application processor, which primarily handles operating systems, user interfaces, application programs, etc., and a modem processor, which primarily handles wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 1610.

The terminal 160 may further include a power supply 1611 (e.g., a battery) for powering the various components, and preferably, the power supply 1611 may be logically connected to the processor 1610 via a power management system that may be configured to manage charging, discharging, and power consumption.

In addition, the terminal 160 includes some functional modules that are not shown, and are not described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, including a processor 1610, a memory 169, and a computer program stored in the memory 169 and capable of running on the processor 1610, where the computer program is executed by the processor 1610 to implement the processes of the information transmission method embodiment of the unlicensed frequency band, and can achieve the same technical effects, and details are not repeated here to avoid repetition. A terminal may be a wireless terminal or a wired terminal, and a wireless terminal may be a device providing voice and/or other service data connectivity to a user, a handheld device having a wireless connection function, or other processing devices connected to a wireless modem. A wireless terminal, which may be a mobile terminal such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal, e.g., a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more core networks via a Radio Access Network (RAN), and may exchange language and/or data with the RAN. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs) are used. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

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

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

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

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

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

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

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

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

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

Claims

1. An information transmission method 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;

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:

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;

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:

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.