Communication anti-interference method, network device, terminal device and storage medium

Abstract

The application discloses a communication anti-interference method, network equipment, terminal equipment and a storage medium. The method comprises the following steps: acquiring first interference information; selecting N available first synchronization frequency points according to the first interference information, wherein N is an integer greater than 1, the N available first synchronization frequency points comprise one main synchronization frequency point and N-1 auxiliary synchronization frequency points; configuring a corresponding main message and a system message for each first synchronization frequency point; and broadcasting the main message and the system message corresponding to each first synchronization frequency point. The application can provide multiple synchronization frequency points for terminal equipment to perform network access operation. Because each synchronization frequency point has a corresponding main message and a system message, after the terminal equipment accesses a certain synchronization frequency point, the terminal equipment can perform signal transmission and reception on the corresponding main message and the system message, interference is avoided, and the system anti-interference capability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication, and in particular to a communication anti-interference method, a network device, a terminal device and a storage medium. BACKGROUND

[0002] Currently, the 5G standard adopts a flexible channel design, which has better anti-interference performance than other broadband wireless communication systems such as Long Term Evolution (LTE), but the synchronization signals and part of the broadcast signals are still susceptible to interference, resulting in the system unable to work normally. SUMMARY

[0003] Embodiments of the present application provide a communication anti-interference method, a network device, a terminal device and a storage medium, which are used to provide multiple synchronization frequency points for terminal devices to perform network access operations, so as to avoid a synchronization frequency point being interfered with and no other secondary synchronization frequency point being available for network access and communication, thereby causing the terminal device to be unable to access the network and communicate.

[0004] The first aspect of the present application provides a communication anti-interference method, which is applied to a network device and can include:

[0005] obtaining first interference information;

[0006] selecting N available first synchronization frequency points according to the first interference information, N being an integer greater than 1, the N available first synchronization frequency points including one primary synchronization frequency point and N-1 secondary synchronization frequency points;

[0007] configuring a corresponding primary message and system message for each first synchronization frequency point;

[0008] broadcasting the primary message and system message corresponding to each first synchronization frequency point.

[0009] Optionally, the method can further include:

[0010] obtaining second interference information;

[0011] selecting N available second synchronization frequency points according to the second interference information in the case that the second interference information exceeds a preset range;

[0012] configuring a corresponding primary message and system message for each second synchronization frequency point;

[0013] broadcasting the primary message and system message corresponding to each second synchronization frequency point.

[0014] Optionally, the obtaining first interference information can include:

[0015] The first interference information is obtained through first interference measurement information, which is measured by the network device, reported by a terminal device, or obtained from a third party.

[0016] Optionally, the interference value of the N available first synchronization frequency points is lower than a first threshold value.

[0017] Optionally, the broadcasting of the main message and the system message corresponding to each first synchronization frequency point can include:

[0018] The first main message and first indication information are transmitted through the SSB time-frequency resource position of the main synchronization frequency point, the first indication information is used to indicate the first control resource set time-frequency resource position of the main synchronization frequency point, a first system message is transmitted at the first control resource set time-frequency resource position, and the first main message, the first indication information, and the first system message are used for network access of the terminal device.

[0019] The second main message and second indication information are transmitted through the SSB time-frequency resource position of the N-1 auxiliary synchronization frequency points, the second indication information is used to indicate the first control resource set time-frequency resource position of the main synchronization frequency point, and the second main message and the second indication information are used for network access of the terminal device.

[0020] Optionally, the broadcasting of the main message and the system message corresponding to each first synchronization frequency point can include:

[0021] The first main message and first indication information are transmitted through the SSB time-frequency resource position of the main synchronization frequency point, the first indication information is used to indicate the first control resource set time-frequency resource position of the main synchronization frequency point, a first system message is transmitted at the first control resource set time-frequency resource position, and the first main message, the first indication information, and the first system message are used for network access of the terminal device.

[0022] The second main message and third indication information are transmitted through the SSB time-frequency resource position of the N-1 auxiliary synchronization frequency points, the third indication information is used to indicate the second control resource set time-frequency resource position of the N-1 auxiliary synchronization frequency points, a second system message is transmitted at the second control resource set time-frequency resource position, and the second main message, the third indication information, and the second system message are used for network access of the terminal device.

[0023] Optionally, the method can further include:

[0024] A three-dimensional bitmap indicating reserved resources is configured, the three-dimensional bitmap includes resource block numbers, time slot numbers, and symbol numbers indicating the reserved resources, and the reserved resources include time-frequency resources occupied by SSBs and control resource sets of the N synchronization frequency points.

[0025] Optionally, the method further comprises:

[0026] sending the three-dimensional bitmap to a target terminal device, the three-dimensional bitmap being used by the target terminal device to perform data transceiving on time-frequency resources corresponding to the accessed synchronization frequency point.

[0027] The second aspect of the present application provides a communication anti-interference method, which is applied to a terminal device, and can comprise:

[0028] receiving a master message and a system message corresponding to each first synchronization frequency point broadcast by a network device;

[0029] performing network access according to the master message and the system message corresponding to each first synchronization frequency point.

[0030] Optionally, the method further comprises:

[0031] receiving a three-dimensional bitmap sent by the network device;

[0032] performing data transceiving on time-frequency resources corresponding to an accessed synchronization frequency point according to the three-dimensional bitmap.

[0033] The third aspect of the present application provides a network device, which can comprise:

[0034] an acquisition module, configured to acquire first interference information;

[0035] a processing module, configured to select N available first synchronization frequency points according to the first interference information, N being an integer greater than 1, the N available first synchronization frequency points including one primary synchronization frequency point and N-1 secondary synchronization frequency points, and configured to configure a corresponding master message and system message for each first synchronization frequency point;

[0036] a transceiving module, configured to broadcast the master message and the system message corresponding to each first synchronization frequency point.

[0037] Optionally, the acquisition module is further configured to acquire second interference information;

[0038] the processing module is further configured to select N available second synchronization frequency points according to the second interference information in a case where the second interference information exceeds a preset range, and configured to configure a corresponding master message and system message for each second synchronization frequency point;

[0039] the transceiving module is further configured to broadcast the master message and the system message corresponding to each second synchronization frequency point.

[0040] Optionally, the acquisition module is specifically configured to acquire the first interference information through first interference measurement information, which is measured by the network device, reported by a terminal device, or acquired from a third party.

[0041] Optionally, the interference value of the N available first synchronization frequency points is lower than a first threshold value.

[0042] Optionally, the transceiver module is specifically configured to send a first main message and first indication information through the SSB time-frequency resource position of the primary synchronization frequency point, the first indication information is used to indicate the first control resource set time-frequency resource position of the primary synchronization frequency point, and a first system message is sent at the first control resource set time-frequency resource position; the first main message, the first indication information, and the first system message are used for the terminal device to access the network; a second main message and second indication information are sent through the SSB time-frequency resource position of the N-1 secondary synchronization frequency points, the second indication information is used to indicate the first control resource set time-frequency resource position of the primary synchronization frequency point, and the second main message and the second indication information are used for the terminal device to access the network.

[0043] Optionally, the transceiver module is specifically configured to send a first main message and first indication information through the SSB time-frequency resource position of the primary synchronization frequency point, the first indication information is used to indicate the first control resource set time-frequency resource position of the primary synchronization frequency point, and a first system message is sent at the first control resource set time-frequency resource position; the first main message, the first indication information, and the first system message are used for the terminal device to access the network; a second main message and third indication information are sent through the SSB time-frequency resource position of the N-1 secondary synchronization frequency points, the third indication information is used to indicate the second control resource set time-frequency resource position of the N-1 secondary synchronization frequency points, and a second system message is sent at the second control resource set time-frequency resource position; the second main message, the third indication information, and the second system message are used for the terminal device to access the network.

[0044] Optionally, the processing module is further configured to configure a three-dimensional bitmap indicating reserved resources, the three-dimensional bitmap includes resource block numbers, time slot numbers, and symbol numbers indicating the reserved resources, and the reserved resources include time-frequency resources occupied by SSBs and control resource sets of the N synchronization frequency points.

[0045] Optionally, the transceiver module is further configured to send the three-dimensional bitmap to a target terminal device, and the three-dimensional bitmap is used for the target terminal device to perform data transmission and reception on time-frequency resources corresponding to the accessed synchronization frequency point.

[0046] The fourth aspect of the present application provides a terminal device, which can include:

[0047] a transceiver module, configured to receive a master message and a system message corresponding to each of the first synchronization frequency points broadcast by the network device;

[0048] a processing module, configured to perform network access according to the master message and the system message corresponding to each of the first synchronization frequency points.

[0049] Optionally, the transceiver module is further configured to receive a three-dimensional bitmap sent by the network device.

[0050] The processing module is further configured to perform data transmission and reception on a time-frequency resource corresponding to an accessed synchronization frequency point according to the three-dimensional bitmap.

[0051] The fifth aspect of the present application provides a network device, which can include:

[0052] a memory storing executable program codes;

[0053] a processor and a transceiver coupled with the memory;

[0054] The processor invokes the executable program codes stored in the memory, so that the processor and the transceiver perform the method of the first aspect correspondingly.

[0055] The sixth aspect of the present application provides a terminal device, which can include:

[0056] a memory storing executable program codes;

[0057] a processor and a transceiver coupled with the memory;

[0058] The processor invokes the executable program codes stored in the memory, so that the processor and the transceiver perform the method of the second aspect correspondingly.

[0059] Another aspect of the embodiments of the present application provides a computer readable storage medium, including instructions, when the instructions are run on a processor, causing the processor to perform the method of the first aspect or the second aspect of the present application.

[0060] Another aspect of the embodiments of the present application discloses a computer program product, when the computer program product is run on a computer, causing the computer to perform the method of the first aspect or the second aspect of the present application.

[0061] Another aspect of the embodiments of the present application discloses an application publishing platform, the application publishing platform is used for publishing a computer program product, wherein, when the computer program product is run on a computer, causing the computer to perform the method of the first aspect or the second aspect of the present application.

[0062] From the above technical solution, the embodiments of the present application have the following advantages:

[0063] In the embodiments of the present application, the first interference information is obtained; according to the first interference information, N available first synchronization frequency points are selected, N is an integer greater than 1, the N available first synchronization frequency points include one primary synchronization frequency point and N-1 secondary synchronization frequency points; for each first synchronization frequency point, a corresponding primary message and system message are configured; and the primary message and system message corresponding to each first synchronization frequency point are broadcasted. The embodiments of the present application provide N first synchronization frequency points, which can be used for network access operation of the terminal device. The present application can provide multiple synchronization frequency points for the terminal device to perform network access operation. Because each synchronization frequency point has a corresponding primary message and system message, after the terminal device accesses a certain synchronization frequency point, the terminal device can perform signal transmission and reception on the corresponding primary message and system message, avoid interference, and improve the system anti-interference capability. BRIEF DESCRIPTION OF DRAWINGS

[0064] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments and the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained from these drawings.

[0065] Figure 1 An example of a 5G carrier grid and a synchronization grid is shown in the figure;

[0066] Figure 2 An example of a method for communication anti-interference in the embodiments of the present application is shown in the figure;

[0067] Figure 3 Another example of a method for communication anti-interference in the embodiments of the present application is shown in the figure;

[0068] Figure 4 Another example of a method for communication anti-interference in the embodiments of the present application is shown in the figure;

[0069] Figure 5 An example of a time-frequency resource and SSB, CORESET#0 in the embodiments of the present application is shown in the figure;

[0070] Figure 6 An example of a network device in the embodiments of the present application is shown in the figure;

[0071] Figure 7 An example of a terminal device in the embodiments of the present application is shown in the figure;

[0072] Figure 8 Another example of a network device in the embodiments of the present application is shown in the figure;

[0073] Figure 9 Figure 2 is a schematic diagram of another embodiment of the terminal device in the embodiments of the present application. DETAILED DESCRIPTION

[0074] The embodiments of the present application provide a communication anti-interference method, a network device, a terminal device and a storage medium, which are used for providing multiple synchronization frequency points for network entry operation of the terminal device, avoiding that one synchronization frequency point is interfered and no other auxiliary synchronization frequency point can be used for network entry and communication, and causing the terminal device to be unable to enter the network and communicate.

[0075] In order to enable personnel in the technical field to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments of the present application. Based on the embodiments in the present application, all should belong to the scope of protection of the present application.

[0076] At present, 5G standards R15 and R16 versions are successively landed, and research and development products are also successively launched. The support of 5G standards for different businesses (for example, enhanced mobile broadband (eMBB), ultra-reliable and low latency communications (URLLC), and massive machine type communication (mMTC)) makes it have strong flexibility, permeability and driving force, thereby deeply integrating with various industries, and providing key technical support for social development. Not only the civil field has strong demand for 5G, but also the military, emergency and other special fields have increasingly prominent demand for 5G. However, all versions of the current standards are used in commercial environments, and the deployment scenarios considered must have dedicated spectrum resources, and there is no existence of inter-system interference and malicious interference when used, which requires dedicated spectrum, no inter-system interference and malicious interference, and no deployment in an interference environment is considered. However, in the special network field, due to limited spectrum resources and weak supervision, even in a wireless countermeasure environment, interference inevitably exists, and the demand for 5G in the special network field is also increasingly prominent, so it is necessary to improve the anti-interference ability of 5G to meet the demand of the special network.

[0077] Figure 1 Figure 1 is a schematic diagram of 5G carrier raster and synchronization raster. And 5G adopts, for example, a synchronization raster of 5MHz, and a carrier raster of 5MHz. Figure 1The sparse synchronization grid is shown, and thus it is more easily interfered. At present, the 5G system has certain flexibility in frequency domain resource scheduling, and through frequency selective scheduling, the subcarriers with poor channel conditions can be avoided, but this method can only be used for interference avoidance of shared channels. 5G can also use carrier aggregation technology to avoid interference by activating / deactivating different carriers, but this method needs to be implemented after the terminal device establishes a connection. 5G also introduces a bandwidth part (BWP), which can flexibly allocate time-frequency resources to avoid interference, but this method has the same shortcomings as the carrier aggregation method. In addition, a supplementary anti-interference link can be introduced to assist 5G in anti-interference, but the base station and terminal device side need to be modified together, which is difficult to implement. The 5G system can also use the method of multiple synchronization signals to provide diversity gain, but it also needs to be modified on the base station and terminal device side, which requires a high requirement on the industry chain and cannot be quickly and efficiently applied.

[0078] At present, the degree of self-control of terminal device chips in China is relatively low, and it is difficult to modify the terminal device baseband and protocol. Compared with the base station, the platform supports the independent research and development of manufacturers, and can be flexibly modified. Therefore, the anti-interference enhancement of the 5G system is innovated from the perspective of the base station, which can be more quickly and efficiently applied.

[0079] The present application provides a base station anti-interference method, which enhances the synchronization signal and PBCH block (Synchronization Signal and PBCH block, SSB) and CORESET #0 without modifying the standard operation of the terminal device, and cleverly combines the reserved resource configuration, so that the network device has the ability to resist narrowband interference from other systems, and can interconnect with the terminal device, and improve the practicability of the anti-interference method.

[0080] The technical solutions of the present application will be further described below in the form of embodiments, such as Figure 2 As shown in the figure, it is an embodiment of the communication anti-interference method in the embodiment of the present application, which can include:

[0081] 201, the network device obtains the first interference information.

[0082] Optionally, the network device obtains the first interference information, which can include: the network device obtains the first interference information through the first interference measurement information, the first interference measurement information is obtained by measuring the network device, or obtained by the terminal device reporting, or obtained from a third party.

[0083] Exemplarily, the network device is taken as a base station for illustration. The base station acquires interference information through interference measurement, which is used for subsequent determination of primary and secondary synchronization frequency points, i.e., for indication of time-frequency resource positions of SSB and CORESET#0. Optionally, the interference measurement information can be actively measured by the base station, can be instructed by the base station to be measured and reported by a terminal device, or can be input by a third party.

[0084] 202. The network device selects N available first synchronization frequency points according to the first interference information, N being an integer greater than 1, the N available first synchronization frequency points including one primary synchronization frequency point and N-1 secondary synchronization frequency points.

[0085] Optionally, the interference values of the N available first synchronization frequency points are lower than a first threshold value.

[0086] Exemplarily, the base station selects N available synchronization frequency points according to the first interference information, the interference values of the synchronization frequency points being lower than a certain threshold value (which can be set or adjusted according to actual conditions). If the number of synchronization frequency points with interference values lower than the certain threshold value is not enough, for example, X, then the synchronization frequency points with interference values lower than the certain threshold value are arranged in ascending order according to different interference values, and the first Y synchronization frequency points with lower interference values are selected, where X+Y=N. Among the N synchronization frequency points, one is selected as a primary synchronization frequency point, and the others are secondary synchronization frequency points, which can also be referred to as auxiliary synchronization frequency points.

[0087] 203. The network device configures corresponding primary messages and system messages for each first synchronization frequency point.

[0088] It can be understood that the corresponding primary messages and system messages are configured for the SSB and CORESET#0 of each first synchronization frequency point.

[0089] The primary message can be a Master Information Block (MIB), and the system message can be a System Information Block (SIB) or a Remaining Minimum System Information (RMSI).

[0090] 204. The network device broadcasts the primary messages and system messages corresponding to each first synchronization frequency point.

[0091] The terminal device receives the primary messages and system messages corresponding to each first synchronization frequency point broadcast by the network device.

[0092] In the embodiment of the present application, the first interference information is acquired; according to the first interference information, N available first synchronization frequency points are selected, N is an integer greater than 1, the N available first synchronization frequency points include one main synchronization frequency point and N-1 auxiliary synchronization frequency points; for each first synchronization frequency point, the corresponding main message and system message are configured; and the corresponding main message and system message of each first synchronization frequency point are broadcasted. The embodiment of the present application provides N first synchronization frequency points, which can be used for network access operation of the terminal device. The present application can provide multiple synchronization frequency points for the terminal device to perform network access operation. Because each synchronization frequency point has corresponding main message and system message, after the terminal device accesses a certain synchronization frequency point, the terminal device can perform signal transmission and reception on the corresponding main message and system message, thereby avoiding interference and improving the system anti-interference capability. Further, because the network device provides multiple synchronization frequency points for the terminal device, in the case that the terminal device cannot access the main synchronization frequency point, the terminal device can access the auxiliary synchronization frequency point, thereby improving the probability of network access of the terminal device.

[0093] As shown in Figure 3 , it is another embodiment schematic diagram of the communication anti-interference method in the embodiment of the present application, which can include:

[0094] 301. The network device acquires the first interference information.

[0095] 302. The network device selects N available first synchronization frequency points according to the first interference information, N is an integer greater than 1, and the N available first synchronization frequency points include one main synchronization frequency point and N-1 auxiliary synchronization frequency points.

[0096] 303. The network device configures corresponding main message and system message for each first synchronization frequency point.

[0097] 304. The network device broadcasts the corresponding main message and system message of each first synchronization frequency point.

[0098] It should be noted that the steps of steps 301-304 are similar to the steps of steps 201-204 in the embodiment shown in Figure 2 , which will not be described here.

[0099] 305. The terminal device accesses the network according to the corresponding main message and system message of each first synchronization frequency point.

[0100] Taking the main synchronization frequency point as an example, the terminal device first receives the first main message and the first indication information sent by the SSB time-frequency resource position corresponding to the main synchronization frequency point, receives the first system message at the CORESET#0 time-frequency resource position indicated by the first indication information, and decodes the received first main message and first system message.

[0101] 306. The second interference information is acquired.

[0102] It can be understood that the network device can update the interference information, that is, after selecting the N available first synchronization frequency points according to the obtained first interference information, the second interference information can be obtained.

[0103] Optionally, the network device obtaining the first interference information can include: the network device obtaining the second interference information through second interference measurement information, the second interference measurement information being obtained by the network device measurement, or being obtained by the terminal device reporting, or being obtained from a third party.

[0104] 307、In the case that the second interference information exceeds the preset range, selecting N available second synchronization frequency points according to the second interference information.

[0105] It is judged whether the second interference information is within the preset range. If it is within the preset range, it means that the second interference information does not interfere with the subsequent communication of the synchronization frequency point. If it is not within the preset range, it means that the second interference information interferes with the communication of the synchronization frequency point.

[0106] 308、For each second synchronization frequency point, a corresponding master message and system message are configured.

[0107] It can be understood that the corresponding master message and system message are configured for the SSB and CORESET#0 of each second synchronization frequency point.

[0108] The master message can be a master information block (MIB), and the system message can be a system information block (SIB) or a remaining minimum system information (RMSI).

[0109] 309、Broadcasting the master message and the system message corresponding to each second synchronization frequency point.

[0110] The terminal device receives the master message and the system message corresponding to each first synchronization frequency point broadcast by the network device.

[0111] 310、The terminal device performs network access according to the master message and the system message corresponding to each second synchronization frequency point.

[0112] Taking the primary synchronization frequency point in the N second synchronization frequency points as an example, the terminal device first receives the master message and the indication information sent at the SSB time-frequency resource position corresponding to the primary synchronization frequency point, receives the system message at the CORESET#0 time-frequency resource position indicated by the indication information, and decodes the received master message and system message.

[0113] In the embodiment of the present application, the configuration of the synchronization frequency point can be modified according to the updated interference information, the probability of the terminal device entering the network is improved, and it is prevented that new interference information causes interference to the previously configured synchronization frequency point, so that the terminal device cannot enter the network and cannot communicate. In the case where the second interference information exceeds the preset range, N available second synchronization frequency points can be selected, and the corresponding main message and system message of the N second synchronization frequency points can be configured, for example, the transmission content of the SSB and CORESET#0 of the N second synchronization frequency points is modified. That is, the main message and system message corresponding to the N second synchronization frequency points are modified.

[0114] As Figure 4 shown, another embodiment of the method for communication anti-interference in the embodiment of the present application is shown, which can include:

[0115] 401. The network device obtains first interference information.

[0116] 402. The network device selects N available first synchronization frequency points according to the first interference information, N is an integer greater than 1, and the N available first synchronization frequency points include one primary synchronization frequency point and N-1 secondary synchronization frequency points.

[0117] 403. The network device configures a corresponding main message and system message for each first synchronization frequency point.

[0118] 404. The network device broadcasts the corresponding main message and system message of each first synchronization frequency point.

[0119] It should be noted that the steps of steps 401-404 are similar to the steps of steps 201-204 in the embodiment shown in Figure 2 , which will not be described here.

[0120] Optionally, the network device broadcasting the corresponding main message and system message of each first synchronization frequency point can include but is not limited to the following implementation manner:

[0121] Manner 1: The network device sends a first main message and first indication information through the SSB time-frequency resource position of the primary synchronization frequency point, the first indication information is used to indicate the first control resource set time-frequency resource position of the primary synchronization frequency point, and a first system message is sent at the first control resource set time-frequency resource position; the first main message, the first indication information and the first system message are used for the terminal device to enter the network; the network device sends a second main message and second indication information through the SSB time-frequency resource position of the N-1 secondary synchronization frequency points, the second indication information is used to indicate the first control resource set time-frequency resource position of the primary synchronization frequency point, and the second main message and the second indication information are used for the terminal device to enter the network.

[0122] Manner 2: The network device sends a first master message and first indication information through the SSB time-frequency resource position of the primary synchronization frequency point. The first indication information is used to indicate the first control resource set time-frequency resource position of the primary synchronization frequency point, and a first system message is sent at the first control resource set time-frequency resource position. The first master message, the first indication information, and the first system message are used for the terminal device to perform network access. The network device sends a second master message and third indication information through the SSB time-frequency resource position of the N-1 secondary synchronization frequency points. The third indication information is used to indicate the second control resource set time-frequency resource position of the N-1 secondary synchronization frequency points, and a second system message is sent at the second control resource set time-frequency resource position. The second master message, the third indication information, and the second system message are used for the terminal device to perform network access.

[0123] It should be noted that the primary synchronization frequency point sends the MIB message and the first indication information at the corresponding SSB time-frequency resource position in a manner specified by the protocol. The first indication information is used to indicate the CORESET#0 time-frequency resource position corresponding to the primary synchronization frequency point, and a system message block (SIB) or remaining minimum system information (RMSI) is sent in the CORESET#0, guiding the terminal device to complete the subsequent network access process.

[0124] The MIB message and the second indication information are sent at the SSB time-frequency resource position corresponding to the secondary synchronization frequency point. The second indication information is used to carry information bits pointing to the CORESET#0 time-frequency resource position of the primary synchronization frequency point. No message is sent at the CORESET#0 time-frequency resource position corresponding to the secondary synchronization frequency point, guiding the terminal device to complete the subsequent network access process; or,

[0125] The MIB message and the third indication information are sent at the SSB time-frequency resource position corresponding to the secondary synchronization frequency point. The third indication information is used to indicate the CORESET#0 time-frequency resource position corresponding to the secondary synchronization frequency point, and a system message block SIB or remaining minimum system information RMSI is sent in the CORESET#0, guiding the terminal device to complete the subsequent network access process.

[0126] 405、The terminal device performs network access according to the master message and the system message corresponding to each first synchronization frequency point.

[0127] Taking a primary synchronization frequency point as an example, the terminal device first receives a first primary message and first indication information sent by a primary synchronization frequency point corresponding SSB time-frequency resource position, receives a first system message at a CORESET#0 time-frequency resource position indicated by the first indication information, and decodes the received first primary message and first system message.

[0128] 406. The network device configures a three-dimensional bitmap indicating the reserved resources.

[0129] The three-dimensional bitmap includes resource block numbers, time slot numbers, and symbol numbers of the reserved resources, and the reserved resources include time-frequency resources occupied by SSBs and control resource sets of the N synchronization frequency points.

[0130] It should be noted that the timing of steps 405 and 406 is not limited.

[0131] 407. The network device sends the three-dimensional bitmap to the target terminal device, and the three-dimensional bitmap is used by the target terminal device to perform data transmission and reception on time-frequency resources corresponding to an accessed synchronization frequency point.

[0132] The terminal device receives the three-dimensional bitmap sent by the network device.

[0133] Optionally, the network device sends the three-dimensional bitmap to the target terminal device through RRC signaling.

[0134] It can be understood that the network device configures a three-dimensional bitmap (bitmap) indicating the reserved resources, which respectively indicates resource block (Resource Block, RB) numbers, time slot numbers, and symbol numbers of the reserved resources.

[0135] The resource block includes various time slots, and each time slot includes various symbols. These reserved resources must include time-frequency resources occupied by all SSBs and CORESET#0 of the primary synchronization frequency point and the secondary synchronization frequency point. Through radio resource control (Radio Resource Control, RRC) signaling, three-dimensional bitmap (bitmap) information of the reserved resources is sent to the terminal device, indicating the terminal device to perform data transmission and reception on SSBs and CORESET#0 of the primary synchronization frequency point, and not to perform data transmission and reception on SSBs and CORESET#0 of the secondary synchronization frequency point; optionally, in the case that the terminal device accesses the network through the secondary synchronization frequency point, the terminal device is instructed to perform data transmission and reception on SSBs and CORESET#0 of the secondary synchronization frequency point.

[0136] 408. The terminal device performs data transmission and reception on time-frequency resources corresponding to an accessed synchronization frequency point according to the three-dimensional bitmap.

[0137] It is understandable that the synchronization frequency point accessed by the terminal device can be either a primary synchronization frequency point or a secondary synchronization frequency point. If the terminal device accesses the primary synchronization frequency point, it can transmit and receive data on the time-frequency resources corresponding to the primary synchronization frequency point. If the terminal device accesses one of the secondary synchronization frequency points, it can transmit and receive data on the time-frequency resources corresponding to the secondary synchronization frequency point.

[0138] like Figure 5 The diagram shown illustrates the time-frequency resources and SSB, CORESET#0 in an embodiment of this application. This embodiment determines the location of time-frequency resources at the primary and secondary synchronization frequencies by analyzing interference information. A Master Information Block (MIB) message is sent at the SSB of the primary synchronization frequency to indicate the location of CORESET#0 at the primary synchronization frequency, and a Remaining Minimum System Message (RMSI) or SIB message is sent at CORESET#0 at the primary synchronization frequency. A MIB message is sent at the SSB of the secondary synchronization frequency to indicate the location of CORESET#0 at the primary synchronization frequency, and CORESET#0 at the secondary synchronization frequency is left empty without data transmission or reception. A three-dimensional bitmap is used to instruct the terminal device not to transmit or receive data at the SSB and CORESET#0 of the secondary synchronization frequency, thus avoiding interference to the terminal device's data transmission and reception caused by this modification.

[0139] In this embodiment, first interference information is obtained; based on the first interference information, N available first synchronization frequencies are selected, where N is an integer greater than 1. The N available first synchronization frequencies include one primary synchronization frequency and N-1 secondary synchronization frequencies; for each first synchronization frequency, a corresponding primary message and system message are configured; and the primary message and system message corresponding to each first synchronization frequency are broadcast. Compared with the prior art where only one synchronization frequency is available for terminal devices to access, this embodiment provides N first synchronization frequencies, which can be used by terminal devices for network access operations. This application can provide multiple synchronization frequencies for terminal devices to access the network because each synchronization frequency has a corresponding primary message and system message. After a terminal device accesses a certain synchronization frequency, it can transmit and receive signals on the corresponding primary message and system message, avoiding interference and improving the system's anti-interference capability. The primary message and system message sent by the synchronization frequency are necessary information to guide the terminal device in discovering and accessing network devices. If they cannot be successfully received and decoded, the terminal device cannot access the network or communicate.

[0140] The application provides multiple optional sending positions for SSB and CORESET#0 by selecting primary and secondary synchronization frequency points, and improves the anti-interference capability of a 5G system. By configuring indication information carried in SSB and CORESET#0, a terminal device is flexibly instructed to find appropriate synchronization and broadcast information, and interference is avoided. The resource reservation mechanism is ingeniously matched to avoid signal transmission and reception of interfering terminal devices, so that the anti-interference capability of the system is improved under the premise of only modifying a network device (for example, a base station).

[0141] As shown in Figure 6 , it is a schematic diagram of one embodiment of the network device in the embodiments of the application, which can include:

[0142] The acquisition module 601 is configured to acquire first interference information.

[0143] The processing module 602 is configured to select N available first synchronization frequency points according to the first interference information, N being an integer greater than 1, the N available first synchronization frequency points including one primary synchronization frequency point and N-1 secondary synchronization frequency points; and for each first synchronization frequency point, a corresponding primary message and system message are configured.

[0144] The transceiver module 603 is configured to broadcast the primary message and the system message corresponding to each first synchronization frequency point.

[0145] Optionally, the acquisition module 601 is further configured to acquire second interference information.

[0146] The processing module 602 is further configured to select N available second synchronization frequency points according to the second interference information in the case that the second interference information exceeds a preset range; and for each second synchronization frequency point, a corresponding primary message and system message are configured.

[0147] The transceiver module 603 is further configured to broadcast the primary message and the system message corresponding to each second synchronization frequency point.

[0148] Optionally, the acquisition module 601 is specifically configured to acquire the first interference information through first interference measurement information, the first interference measurement information being obtained by measurement of the network device, or being obtained by reporting of a terminal device, or being obtained from a third party.

[0149] Optionally, the interference value of the N available first synchronization frequency points is lower than a first threshold value.

[0150] Optionally, the transceiver module 603 is specifically configured to send a first master message and first indication information through an SSB time-frequency resource position of the primary synchronization frequency point, the first indication information being used to indicate a first control resource set time-frequency resource position of the primary synchronization frequency point, a first system message being sent at the first control resource set time-frequency resource position; the first master message, the first indication information, and the first system message being used for network access of the terminal device; a second master message and second indication information being sent through SSB time-frequency resource positions of the N-1 secondary synchronization frequency points, the second indication information being used to indicate the first control resource set time-frequency resource position of the primary synchronization frequency point, the second master message and the second indication information being used for network access of the terminal device.

[0151] Optionally, the transceiver module 603 is specifically configured to send a first master message and first indication information through an SSB time-frequency resource position of the primary synchronization frequency point, the first indication information being used to indicate a first control resource set time-frequency resource position of the primary synchronization frequency point, a first system message being sent at the first control resource set time-frequency resource position; the first master message, the first indication information, and the first system message being used for network access of the terminal device; a second master message and third indication information being sent through SSB time-frequency resource positions of the N-1 secondary synchronization frequency points, the third indication information being used to indicate a second control resource set time-frequency resource position of the N-1 secondary synchronization frequency points, a second system message being sent at the second control resource set time-frequency resource position; the second master message, the third indication information, and the second system message being used for network access of the terminal device.

[0152] Optionally, the processing module 602 is further configured to configure a three-dimensional bitmap indicating reserved resources, the three-dimensional bitmap including resource block numbers, time slot numbers, and symbol numbers indicating the reserved resources, the reserved resources including time-frequency resources occupied by SSBs and control resource sets of the N synchronization frequency points.

[0153] Optionally, the transceiver module 603 is further configured to send the three-dimensional bitmap to a target terminal device, the three-dimensional bitmap being used by the target terminal device to perform data transmission and reception on time-frequency resources corresponding to an accessed synchronization frequency point.

[0154] As shown in FIG. 7, an embodiment of a terminal device in the present application can include: Figure 7

[0155] The transceiver module 701 is configured to receive a master message and a system message corresponding to each first synchronization frequency point broadcast by a network device.

[0156] The processing module 702 is configured to perform network access according to the master message and the system message corresponding to each first synchronization frequency point. ​

[0157] Optionally, the transceiver module 701 is further configured to receive a three-dimensional bitmap sent by the network device.

[0158] The processing module 702 is further configured to perform data transmission and reception on a time-frequency resource corresponding to the accessed synchronization frequency point according to the three-dimensional bitmap.

[0159] As shown in FIG. 7, which is a schematic diagram of an embodiment of the network device in the present application, the network device can include: Figure 8

[0160] a memory 801 storing executable program codes;

[0161] a processor 802 and a transceiver 803 coupled to the memory 801;

[0162] The processor 802 invokes the executable program codes stored in the memory 801 to obtain first interference information, select N available first synchronization frequency points according to the first interference information, where N is an integer greater than 1, the N available first synchronization frequency points include one primary synchronization frequency point and N-1 secondary synchronization frequency points, and configure a corresponding primary message and system message for each first synchronization frequency point.

[0163] The transceiver 803 is configured to broadcast the primary message and the system message corresponding to each first synchronization frequency point.

[0164] Optionally, the processor 802 is further configured to obtain second interference information, select N available second synchronization frequency points according to the second interference information in a case where the second interference information exceeds a preset range, and configure a corresponding primary message and system message for each second synchronization frequency point.

[0165] The transceiver 803 is further configured to broadcast the primary message and the system message corresponding to each second synchronization frequency point.

[0166] Optionally, the processor 802 is specifically configured to obtain the first interference information through first interference measurement information, where the first interference measurement information is obtained by measuring through the network device, obtained by reporting through a terminal device, or obtained from a third party.

[0167] Optionally, the interference value of the N available first synchronization frequency points is lower than a first threshold value.

[0168] ​Optionally, transceiver 803 is specifically used to send a first master message and a first indication information through the SSB time-frequency resource location of the primary synchronization frequency point. The first indication information is used to indicate the time-frequency resource location of the first control resource set of the primary synchronization frequency point, and a first system message is sent at the time-frequency resource location of the first control resource set. The first master message, the first indication information, and the first system message are used by the terminal device to access the network. A second master message and a second indication information are sent through the SSB time-frequency resource locations of the N-1 secondary synchronization frequencies. The second indication information is used to indicate the time-frequency resource location of the first control resource set of the primary synchronization frequency point, and the second master message and the second indication information are used by the terminal device to access the network.

[0169] Optionally, transceiver 803 is specifically used to send a first main message and a first indication information through the SSB time-frequency resource location of the primary synchronization frequency point. The first indication information is used to indicate the time-frequency resource location of the first control resource set of the primary synchronization frequency point, and a first system message is sent at the time-frequency resource location of the first control resource set. The first main message, the first indication information, and the first system message are used by the terminal device to access the network. It also sends a second main message and a third indication information through the SSB time-frequency resource locations of the N-1 secondary synchronization frequencies points. The third indication information is used to indicate the time-frequency resource location of the second control resource set of the N-1 secondary synchronization frequencies points, and a second system message is sent at the time-frequency resource location of the second control resource set. The second main message, the third indication information, and the second system message are used by the terminal device to access the network.

[0170] Optionally, the processor 802 is further configured to configure a three-dimensional bitmap indicating reserved resources, the three-dimensional bitmap including resource block numbers, time slot numbers, and symbol numbers indicating reserved resources, the reserved resources including the SSBs of the N synchronization frequency points and the time-frequency resources occupied by the control resource set.

[0171] Optionally, transceiver 803 is further configured to send the three-dimensional bitmap to the target terminal device, wherein the three-dimensional bitmap is used by the target terminal device to perform data transmission and reception on the time-frequency resources corresponding to the accessed synchronization frequency point.

[0172] like Figure 9 The diagram shown is a schematic representation of an embodiment of a terminal device in this application, which may include:

[0173] Figure 9 This is a block diagram illustrating a portion of the structure of a mobile phone related to the terminal device provided in an embodiment of the present invention. (Reference) Figure 9The mobile phone includes Radio Frequency (RF) circuit 910, memory 920, input unit 930, display unit 940, sensor 950, audio circuit 960, wireless fidelity (Wi-Fi) module 970, processor 980, and power supply 990, etc. Those skilled in the art can understand that the mobile phone structure shown in the figure does not constitute a limitation on the mobile phone, and can include more or less components than the figure, or combine certain components, or different component arrangements. Figure 9 The mobile phone structure shown in the figure does not constitute a limitation on the mobile phone, and can include more or less components than the figure, or combine certain components, or different component arrangements.

[0174] The following will be described in detail with reference to the drawings. Figure 9 The various components of the mobile phone will be specifically introduced as follows:

[0175] The RF circuit 910 can be used for receiving and sending signals in the process of information or call, especially, receiving the downlink information of the base station and processing by the processor 980; in addition, sending the uplink data to the base station. Usually, the RF circuit 910 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, etc. In addition, the RF circuit 910 can also communicate with the network and other devices through wireless communication. The above wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), etc.

[0176] The memory 920 can be used to store software programs and modules, and the processor 980 can execute various function applications and data processing of the mobile phone by running the software programs and modules stored in the memory 920. The memory 920 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.), and the like; and the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), and the like. In addition, the memory 920 can include a high-speed random access memory, and can also include a non-volatile memory, for example, at least one magnetic disk storage device, a flash memory device, or other volatile solid-state memory device.

[0177] The input unit 930 can be used to receive inputted digital or character information, and to generate key signal input related to the user settings and function control of the mobile phone. Specifically, the input unit 930 can include a touch panel 931 and other input devices 932. The touch panel 931, also known as a touch screen, can collect the touch operation of a user thereon or adjacent thereto (such as the operation of the user using a finger, a stylus, or any suitable object or accessory on or adjacent to the touch panel 931), and drive the corresponding connection device according to the pre-set program. Optionally, the touch panel 931 can include two parts of a touch detection device and a touch controller. Among them, the touch detection device detects the touch position of the user and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, and converts it into touch coordinates, and then sends it to the processor 980, and can also receive the command from the processor 980 and execute it. In addition, the touch panel 931 can be implemented in various types such as a resistive type, a capacitive type, an infrared type, and a surface acoustic wave type. In addition to the touch panel 931, the input unit 930 can also include other input devices 932. Specifically, the other input devices 932 can include one or more of a physical keyboard, a function key (such as a volume control key, an on-off key, etc.), a trackball, a mouse, a joystick, and the like.

[0178] The display unit 940 can be used to display information input by a user or information provided to the user as well as various menus of the mobile phone. The display unit 940 can include a display panel 941, which can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. Further, a touch panel 931 can cover the display panel 941, and when the touch panel 931 detects a touch operation thereon or nearby, it transmits to the processor 980 to determine the type of touch event, and then the processor 980 provides corresponding visual output on the display panel 941 according to the type of touch event. Although in the above description, the touch panel 931 and the display panel 941 are implemented as two independent components to realize the input and output functions of the mobile phone, in some embodiments, the touch panel 931 and the display panel 941 can be integrated to realize the input and output functions of the mobile phone. Figure 9

[0179] The mobile phone can also include at least one sensor 950, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor can include an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 941 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 941 and / or the backlight when the mobile phone 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), and when at rest, it can detect the magnitude and direction of gravity, which can be used for applications that identify the posture of the mobile phone (such as landscape / portrait screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, knocking), and the like. As for other sensors that the mobile phone can also be configured, such as a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and the like, they will not be described here.

[0180] The audio circuit 960, the speaker 961, and the microphone 962 can provide an audio interface between the user and the mobile phone. The audio circuit 960 can convert received audio data into an electrical signal and transmit it to the speaker 961, which converts it into a sound signal for output. On the other hand, the microphone 962 converts the collected sound signal into an electrical signal, which is received by the audio circuit 960 and converted into audio data. After being processed by the processor 980, the audio data is output to the RF circuit 910 for transmission to, for example, another mobile phone, or to the memory 920 for further processing.

[0181] Wi-Fi belongs to a short-range wireless transmission technology, and the mobile phone can help users send and receive emails, browse web pages, and access streaming media through the Wi-Fi module 970, which provides users with wireless broadband Internet access. Although Figure 9 ​A Wi-Fi module 970 is shown, but it is understood that it is not necessarily included in the mobile phone and can be omitted as needed without changing the essence of the application.

[0182] The processor 980 is the control center of the mobile phone, which connects various parts of the mobile phone through various interfaces and lines, executes various functions of the mobile phone and processes data by running or executing software programs and / or modules stored in the memory 920 and calling data stored in the memory 920, thereby monitoring the mobile phone as a whole. Optionally, the processor 980 can include one or more processing units; preferably, the processor 980 can integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, and the modem processor mainly processes wireless communication. It is understood that the above-mentioned modem processor can also be integrated into the processor 980.

[0183] The mobile phone also includes a power supply 990 (such as a battery) for supplying power to various components, and preferably the power supply can be logically connected to the processor 980 through a power management system, so as to realize the functions of managing charging, discharging and power consumption management through the power management system.

[0184] Although not shown, the mobile phone can also include a camera, a Bluetooth module, etc., which will not be described here.

[0185] In the embodiment of the application, the RF circuit 910 is configured to receive a master message and a system message corresponding to each first synchronization frequency point broadcast by a network device;

[0186] The processor 980 is configured to perform network access according to the master message and the system message corresponding to each first synchronization frequency point.

[0187] Optionally, the RF circuit 910 is further configured to receive a three-dimensional bitmap sent by the network device.

[0188] The processor 980 is further configured to perform data transmission and reception on a time-frequency resource corresponding to an accessed synchronization frequency point according to the three-dimensional bitmap.

[0189] In the above embodiments, all or part of them can be realized by software, hardware, firmware or any combination thereof. When realized by software, it can be realized in the form of a computer program product in whole or in part.

[0190] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that the computer can store or be integrated into a data storage device such as a server, data center, etc. containing one or more available media sets. The available media can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)), etc.

[0191] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0192] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0193] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0194] In addition, each of the functional units in the various embodiments of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0195] When the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on such an understanding, the technical solutions of the present application, essentially or in part, or all or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods according to the various embodiments of the present application. The aforementioned storage medium includes: various types of U disks, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks or optical disks, and various other media that can store program codes.

[0196] The above-described and above-embodied embodiments are only used to illustrate the technical solutions of the present application, rather than limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for communication anti-jamming, characterized in that, The method is applied to a network device in a 5G communication system, and the method comprises: obtaining first interference information; selecting N available first synchronization frequency points according to the first interference information, N being an integer greater than 1, the N available first synchronization frequency points including one primary synchronization frequency point and N-1 secondary synchronization frequency points; configuring a corresponding primary message and system message for each first synchronization frequency point; broadcasting the primary message and system message corresponding to each first synchronization frequency point; configuring a three-dimensional bitmap indicating reserved resources, the three-dimensional bitmap including resource block numbers, time slot numbers, and symbol numbers indicating the reserved resources, the reserved resources including time-frequency resources occupied by SSBs and control resource sets of the N available first synchronization frequency points; sending the three-dimensional bitmap to a target terminal device, the three-dimensional bitmap being used by the target terminal device to perform data transmission and reception on time-frequency resources corresponding to an accessed synchronization frequency point.

2. The method of claim 1, wherein, The method further comprises: obtaining second interference information; selecting N available second synchronization frequency points according to the second interference information in a case where the second interference information exceeds a preset range; configuring a corresponding primary message and system message for each second synchronization frequency point; broadcasting the primary message and system message corresponding to each second synchronization frequency point.

3. The method of claim 1, wherein, The obtaining of the first interference information comprises: obtaining the first interference information through first interference measurement information, the first interference measurement information being measured by the network device, reported by a terminal device, or obtained from a third party.

4. The method of claim 1, wherein, The interference values of the N available first synchronization frequency points are lower than a first threshold value.

5. The method according to any one of claims 1-3, characterized in that, The broadcasting of the primary message and system message corresponding to each first synchronization frequency point comprises: sending a first primary message and first indication information through an SSB time-frequency resource position of the primary synchronization frequency point, the first indication information being used to indicate a first control resource set time-frequency resource position of the primary synchronization frequency point, a first system message being sent at the first control resource set time-frequency resource position; the first primary message, the first indication information, and the first system message being used by the terminal device to access a network; sending a second primary message and second indication information through SSB time-frequency resource positions of the N-1 secondary synchronization frequency points, the second indication information being used to indicate the first control resource set time-frequency resource position of the primary synchronization frequency point, the second primary message and the second indication information being used by the terminal device to access the network.

6. The method according to any one of claims 1-3, characterized in that, The broadcasting of the primary message and system message corresponding to each first synchronization frequency point comprises: sending a first primary message and first indication information through an SSB time-frequency resource position of the primary synchronization frequency point, the first indication information being used to indicate a first control resource set time-frequency resource position of the primary synchronization frequency point, a first system message being sent at the first control resource set time-frequency resource position; the first primary message, the first indication information, and the first system message being used by the terminal device to access a network; The second main message and the third indication information are transmitted through the SSB time-frequency resource position of the N-1 auxiliary synchronization frequency points, the third indication information is used for indicating the second control resource set time-frequency resource position of the N-1 auxiliary synchronization frequency points, and a second system message is transmitted at the second control resource set time-frequency resource position; the second main message, the third indication information and the second system message are used for the terminal device to access the network.

7. A method for communication anti-jamming, the method comprising: The method is applied to a terminal device in a 5G communication system, and the method comprises: receiving a main message and a system message corresponding to each first synchronization frequency point broadcast by a network device; accessing the network according to the main message and the system message corresponding to each first synchronization frequency point; receiving a three-dimensional bitmap transmitted by the network device; performing data transmission and reception on a time-frequency resource corresponding to an accessed synchronization frequency point according to the three-dimensional bitmap.

8. A network device, comprising: comprise: an acquisition module, configured to acquire first interference information; a processing module, configured to select N available first synchronization frequency points according to the first interference information, N being an integer greater than 1, the N available first synchronization frequency points comprising one main synchronization frequency point and N-1 auxiliary synchronization frequency points; and configure a corresponding main message and a system message for each first synchronization frequency point; a transceiver module, configured to broadcast the main message and the system message corresponding to each first synchronization frequency point; the processing module is further configured to configure a three-dimensional bitmap indicating reserved resources, the three-dimensional bitmap comprising a resource block number, a time slot number and a symbol number indicating the reserved resources, and the reserved resources comprising time-frequency resources occupied by SSB and control resource sets of the N available first synchronization frequency points; the transceiver module is further configured to transmit the three-dimensional bitmap to a target terminal device, and the three-dimensional bitmap is used for the target terminal device to perform data transmission and reception on a time-frequency resource corresponding to an accessed synchronization frequency point.

9. A terminal device, comprising: comprise: a transceiver module, configured to receive a main message and a system message corresponding to each first synchronization frequency point broadcast by a network device; a processing module, configured to access the network according to the main message and the system message corresponding to each first synchronization frequency point; the transceiver module is further configured to receive a three-dimensional bitmap transmitted by the network device; perform data transmission and reception on a time-frequency resource corresponding to an accessed synchronization frequency point according to the three-dimensional bitmap.

10. A network device, comprising: comprise: a memory storing executable program codes; a processor and a transceiver coupled to the memory; the processor invokes the executable program codes stored in the memory, so that the processor and the transceiver correspondingly perform the method of any one of claims 1-6.

11. A terminal device, comprising: comprise: a memory storing executable program codes; a processor and a transceiver coupled to the memory; the processor invokes the executable program codes stored in the memory, so that the processor and the transceiver correspondingly perform the method of claim 7.

12. A computer-readable storage medium comprising instructions which, when executed on a processor, cause the processor to perform the method of any one of claims 1-6, or claim 7.

Images