Communication methods, communication nodes, storage medium and program product

Abstract

Provided in the embodiments of the present disclosure are communication methods, communication nodes, a storage medium and a program product. A method is applied to a first node. The method comprises: sending a synchronization signal; and sending a physical broadcast channel, wherein there is an association relationship between a feature of the synchronization signal and a feature of the physical broadcast channel.

Description

Communication method, communication node, storage medium and program product

[0001] The present disclosure claims priority to Chinese Patent Application No. 202411392362.X, filed on September 30, 2024, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of communication, and in particular to a communication method, a communication node, a storage medium and a program product. BACKGROUND

[0003] In a communication system, a plurality of services can be provided through a physical broadcast channel (PBCH) in a communication network.

[0004] However, different services have different requirements for the physical broadcast channel, and therefore, in the case of a change in services, the physical broadcast channel needs to be adjusted. SUMMARY

[0005] The present disclosure provides a communication method, a communication node, a storage medium and a program product.

[0006] In one aspect, a communication method is provided, applied to a first node, and the method comprises:

[0007] sending a synchronization signal;

[0008] sending a physical broadcast channel, wherein a characteristic of the synchronization signal and a characteristic of the physical broadcast channel have an association relationship.

[0009] In another aspect, a communication node is provided, comprising a sending module.

[0010] The sending module is configured to send a synchronization signal.

[0011] The sending module is further configured to send a physical broadcast channel, wherein a characteristic of the synchronization signal and a characteristic of the physical broadcast channel have an association relationship.

[0012] In yet another aspect, a communication method is provided, applied to a second node, and the method comprises:

[0013] receiving a synchronization signal sent by a first node;

[0014] receiving a physical broadcast channel sent by the first node, wherein a characteristic of the synchronization signal and a characteristic of the physical broadcast channel have an association relationship.

[0015] In yet another aspect, a communication node is provided, comprising a receiving module.

[0016] The receiving module is configured to receive a synchronization signal sent by a first node.

[0017] The receiving module is further configured to receive a physical broadcast channel sent by the first node, and there is a correlation between a feature of the synchronization signal and a feature of the physical broadcast channel.

[0018] In another aspect, a communication method is provided, which is applied to a first node, and the method comprises:

[0019] sending a synchronization signal;

[0020] sending a phase-tracking reference signal, and there is a correlation between a feature of the synchronization signal and configuration information of the phase-tracking reference signal.

[0021] In another aspect, a communication node is provided, which comprises a sending module.

[0022] The sending module is configured to send a synchronization signal.

[0023] The sending module is further configured to send a phase-tracking reference signal (PT-RS), and there is a correlation between a feature of the synchronization signal and configuration information of the phase-tracking reference signal.

[0024] In another aspect, a communication node is provided, which comprises a memory and a processor, the memory and the processor are coupled, the memory is configured to store a computer program, and the processor is configured to execute the computer program to implement the method in any one of the above aspects or embodiments.

[0025] In another aspect, a computer readable storage medium is provided, and the computer readable storage medium stores computer program instructions, and the computer program instructions are executed by a processor to implement the method in any one of the above aspects or embodiments.

[0026] In another aspect, a computer program product is provided, and the computer program product comprises computer program instructions, and the computer program instructions are executed by a processor to implement the method in any one of the above aspects or embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the present disclosure, the following will briefly introduce the drawings needed to be used in some embodiments of the present disclosure. Obviously, the drawings in the following description are only some drawings of the present disclosure, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0028] FIG. 1 is a system architecture diagram of a communication system provided by some embodiments of the present disclosure.

[0029] FIG. 2 is a flow diagram of a communication method according to some embodiments of the present disclosure.

[0030] FIG. 3 is a diagram of an association relationship according to some embodiments of the present disclosure.

[0031] FIG. 4 is a diagram of another association relationship according to some embodiments of the present disclosure.

[0032] FIG. 5 is a diagram of parallel transmission of a physical broadcast channel according to some embodiments of the present disclosure.

[0033] FIG. 6 is a diagram of another association relationship according to some embodiments of the present disclosure.

[0034] FIG. 7 is a diagram of another association relationship according to some embodiments of the present disclosure.

[0035] FIG. 8 is a flow diagram of another communication method according to some embodiments of the present disclosure.

[0036] FIG. 9 is a flow diagram of another communication method according to some embodiments of the present disclosure.

[0037] FIG. 10 is a flow diagram of another communication method according to some embodiments of the present disclosure.

[0038] FIG. 11 is a diagram of a structure of a communication node according to some embodiments of the present disclosure.

[0039] FIG. 12 is a diagram of a structure of another communication node according to some embodiments of the present disclosure.

[0040] FIG. 13 is a diagram of a structure of another communication node according to some embodiments of the present disclosure.

[0041] FIG. 14 is a diagram of a structure of another communication node according to some embodiments of the present disclosure.

[0042] FIG. 15 is a diagram of a structure of another communication node according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0043] The technical solutions in the present disclosure will be described clearly and completely below with reference to the drawings in the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, but not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present disclosure.

[0044] It should be noted that, in the present disclosure, the words "exemplarily" or "for example" are used to represent an example, illustration or description. Any embodiment or design scheme described as "exemplarily" or "for example" in the present disclosure should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words "exemplarily" or "for example" are intended to present the relevant concept in an exemplary manner.

[0045] Hereinafter, the terms "first" and "second" are used only for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features.

[0046] In the description of the present disclosure, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this document is only a description of the relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can mean: only A, only B, and A and B. In addition, "at least one" means one or more, and "multiple" means two or more.

[0047] In a mobile communication system, the network needs to support diversified service types, and these different services have their own unique requirements for the communication network. For example, some services may require high data rates and low latency, while other services may focus more on coverage or the number of connected devices. These differentiated service requirements pose significant technical challenges to the design of the physical broadcast channel of the wireless communication system.

[0048] To meet the differentiated service requirements, the physical broadcast channel should be able to be flexibly adjusted so that after service switching, the physical broadcast channel can be timely and quickly adjusted to ensure that the communication network element can provide reliable support to the service.

[0049] Currently, in the communication network, after the physical broadcast channel is adjusted, the modulation and demodulation mode and other characteristics of the physical broadcast channel may change, which may cause the success rate of the receiving end of the physical broadcast channel to decrease, so that the receiving end may not be able to reliably receive the adjusted physical broadcast channel. Since there is a correlation between the characteristics of the synchronization signal and the characteristics of the physical broadcast channel, after the synchronization signal is sent, the node receiving the synchronization signal can determine the characteristics of the physical broadcast channel to be sent by the first node based on the characteristics of the synchronization signal. In this way, the node receiving the synchronization signal can obtain prior knowledge of the physical broadcast channel to be sent by the first node based on the synchronization signal, which can improve the success rate of the second node receiving the physical broadcast channel sent by the first node, and ensure that a reliable communication link can be established between the first node and the second node.

[0050] To solve the above technical problems, the embodiment of the disclosure provides a communication method, applied to a first node, the method comprising: transmitting a synchronization signal; transmitting a physical broadcast channel, there being an association relationship between a feature of the synchronization signal and a feature of the physical broadcast channel.

[0051] The communication method provided by the embodiment of the disclosure can be applied to a communication system as shown in FIG. 1, as shown in FIG. 1, the communication system comprises: a first node 101 and a second node 102.

[0052] The first node 101 is configured to transmit a synchronization signal, or transmit a physical broadcast channel, and there is an association relationship between a feature of the synchronization signal and a feature of the physical broadcast channel.

[0053] The second node 102 is configured to receive the synchronization signal transmitted by the first node 101, or receive the physical broadcast channel transmitted by the first node 102.

[0054] Exemplarily, the first node 101 can be a base station, an evolved node base station (eNB), a next generation node base station (gNB), a new radio eNB, a macro base station, a micro base station, a high-frequency base station, a transmission and reception point (TRP), a non-3rd generation partnership project (3GPP) access network (such as Wireless Fidelity (Wi-Fi)), and / or a non-3GPP interworking function (N3IWF) device, etc.

[0055] The second node 102 can be a mobile phone, a tablet computer, a desktop computer, a laptop computer, a notebook computer, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a cellular phone, a personal digital assistant (PDA), an augmented reality (AR) or virtual reality (VR) device, etc. The embodiment of the disclosure does not specially limit the form of the electronic device. It can interact with the user through one or more ways such as a keyboard, a touchpad, a touch screen, a remote control, voice interaction or a handwriting device, etc. In FIG. 1, the first node 101 is taken as a base station and the second node 102 is taken as a terminal as an example.

[0056] It should be noted that FIG. 1 is only an exemplary framework diagram, and the number of devices included in FIG. 1 and the names of the respective devices are not limited.

[0057] The application scenarios of the embodiments of the present disclosure are not limited. The system architecture and business scenarios described in the embodiments of the present disclosure are for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. It can be known by those skilled in the art that, with the evolution of network architecture and the appearance of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0058] The communication method provided by the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0059] The communication method provided by the embodiments of the present disclosure can be applied to the first node 101 in the communication system shown in FIG. 1. FIG. 2 shows a flow diagram of a communication method, as shown in FIG. 2, the communication method includes the following S201-S202:

[0060] S201, sending a synchronization signal.

[0061] It should be understood that the first node sends the synchronization signal, which can enable the node that needs to interact with the first node to receive the synchronization signal, so as to complete the time-frequency synchronization between the first node and the node that needs to interact with the first node, and ensure the reliability of communication.

[0062] S202, sending a physical broadcast channel.

[0063] There is a correlation between the characteristics of the synchronization signal and the characteristics of the physical broadcast channel.

[0064] It should be understood that, since there is a correlation between the characteristics of the synchronization signal and the characteristics of the physical broadcast channel, after sending the synchronization signal, the node receiving the synchronization signal can determine the characteristics of the physical broadcast channel to be sent by the first node based on the characteristics of the synchronization signal. In this way, the node receiving the synchronization signal can obtain prior knowledge of the physical broadcast channel to be sent by the first node based on the synchronization signal, which can improve the success rate of the second node receiving the physical broadcast channel sent by the first node, and ensure that a reliable communication link can be established between the first node and the second node.

[0065] Further, in a scenario where the service provided by the first node changes and the physical broadcast channel is adjusted, the second node can still reliably receive the adjusted physical broadcast channel by sending the synchronization signal. Since a reliable communication link can still be established between the first node and the second node based on the adjusted physical broadcast channel, the first node can flexibly adjust the physical broadcast channel, thereby improving the flexibility of the physical broadcast channel.

[0066] It should be noted that the characteristic of the physical broadcast channel can be understood as a characteristic of the content carried by the physical broadcast channel.

[0067] Exemplarily, the characteristic of the content carried by the physical broadcast channel includes at least one of the following: the content carried by the physical broadcast channel, a processing manner corresponding to the content, a sending manner of the carried content, and a receiving manner of the carried content.

[0068] In some embodiments, the characteristic of the synchronization signal includes at least one of the following: time domain resource information of the synchronization signal, frequency domain resource information of the synchronization signal, a sequence corresponding to the synchronization signal, and a carrier frequency corresponding to the synchronization signal.

[0069] In some embodiments, the characteristic of the physical broadcast channel includes at least one of the following: time domain resource information of the physical broadcast channel, frequency domain resource information of the physical broadcast channel, an encoding manner of the physical broadcast channel, a modulation manner of the physical broadcast channel, constellation mapping description information of the physical broadcast channel, demodulation reference signal configuration information of the physical broadcast channel, a sending period of the physical broadcast channel, a number of physical broadcast channels in one sending period, and broadcast information content of the physical broadcast channel.

[0070] The association between the characteristic of the synchronization signal and the characteristic of the physical broadcast channel will be described in detail below.

[0071] In some embodiments, the time domain resource information of the synchronization signal includes a number of time domain symbols occupied by the synchronization signal in the time domain; the number of time domain symbols occupied by the synchronization signal in the time domain is a first number or a second number; the first number is less than or equal to the second number; the first number and the second number are positive integers; and the association between the time domain resource information of the synchronization signal and the characteristic of the physical broadcast channel includes at least one of the following:

[0072] If the number of time domain symbols occupied by the synchronization signal in the time domain is the first number, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a third number; if the number of time domain symbols occupied by the synchronization signal in the time domain is the second number, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a fourth number; the third number is less than or equal to the fourth number; and the third number and the fourth number are positive integers.

[0073] It should be understood that the smaller the number of time domain symbols occupied by the synchronization signal in the time domain, the more data each time domain symbol corresponds to in the case of a certain amount of data corresponding to the synchronization signal. It is further illustrated that the node receiving the synchronization signal can process more data at a time, reflecting that the node receiving the synchronization signal has stronger receiving capability for the synchronization signal. Therefore, it can be determined that the node receiving the synchronization signal has stronger receiving capability. At this time, the number of time domain symbols occupied by the physical broadcast channel in the time domain can be smaller, so as to ensure that the node receiving the physical broadcast channel (i.e., the node receiving the synchronization signal) can process data matching the processing capability of the node each time, improving the receiving efficiency of the node receiving the physical broadcast channel. Further, the success rate of the node receiving the physical broadcast channel in receiving the physical broadcast channel is ensured.

[0074] Exemplarily, as shown in FIG. 3, an association relationship diagram is provided for indicating the association relationship between the time domain length of the synchronization signal and the time domain length of the physical broadcast channel. The more the number of time domain symbols, the shorter the time domain length corresponding to the time domain symbol; the shorter the length of the time domain symbol, the greater the amount of data corresponding to the time domain symbol. FIG. 3 shows that in the case of a longer time domain length of the synchronization signal, the time domain length of the corresponding physical broadcast channel is longer.

[0075] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a fifth number; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a sixth number; the fifth number is greater than or equal to the sixth number; the fifth number and the sixth number are positive integers.

[0076] It should be understood that the smaller the number of time domain symbols occupied by the synchronization signal in the time domain, the more data each time domain symbol corresponds to in the case of a certain amount of data corresponding to the synchronization signal. It is further illustrated that the node receiving the synchronization signal can process more data at a time, reflecting that the node receiving the synchronization signal has stronger receiving capability for the synchronization signal. Therefore, it can be determined that the node receiving the synchronization signal has stronger receiving capability.

[0077] It should be understood that the greater the number of frequency domain units, the greater the amount of data corresponding to all frequency domain units in the case of a certain amount of data corresponding to each frequency domain unit. Therefore, in the case of stronger receiving capability of the node receiving the synchronization signal, the number of frequency domain units occupied in the frequency domain can be greater, so as to ensure that the node receiving the physical broadcast channel (i.e., the node receiving the synchronization signal) can process data matching the processing capability of the node each time, improving the receiving efficiency of the node receiving the physical broadcast channel. Further, the success rate of the node receiving the physical broadcast channel in receiving the physical broadcast channel is ensured.

[0078] Exemplarily, as shown in FIG. 4, another schematic diagram of the association relationship is provided for indicating the association relationship between the time domain length of the synchronization signal and the frequency domain resource of the physical broadcast channel. The greater the frequency domain resource is, the more the number of frequency domain units is. FIG. 4 shows that in the case that the time domain length of the synchronization signal is lengthened, the frequency domain resource of the corresponding physical broadcast channel is increased.

[0079] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the encoding code rate of the content carried by the physical broadcast channel is a first code rate; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the encoding code rate of the content carried by the physical broadcast channel is a second code rate; the first code rate is greater than or equal to the second code rate.

[0080] It should be understood that the smaller the number of time domain symbols occupied by the synchronization signal in the time domain is, the more the data amount corresponding to each time domain symbol is in the case that the data amount corresponding to the synchronization signal is certain. It is further illustrated that the node receiving the synchronization signal can process more data at a time, which reflects that the node receiving the synchronization signal has stronger receiving capability for the synchronization signal. Therefore, it can be determined that the node receiving the synchronization signal has stronger receiving capability.

[0081] It should be understood that the greater the encoding code rate of the content carried is, the higher the proportion of effective data in the content carried is and the lower the proportion of redundant data is. In the case that the total data amount is certain, the higher the proportion of effective data is, the greater the data amount of effective data to be processed when receiving the channel is, and at this time, the receiving end needs to have higher receiving capability. In the case that the data amount of effective data is certain, the higher the proportion of effective data is, the lower the data amount of redundant data is, and since the redundant data is used to improve the transmission quality, in the case that the data amount of redundant data is lower, the receiving end needs to have higher receiving capability. Therefore, in the case that the receiving capability of the node receiving the synchronization signal is stronger, the encoding code rate of the content carried by the physical broadcast channel can be greater. To ensure that the node receiving the physical broadcast channel (i.e., the node receiving the synchronization signal) can process data matching the processing capability of the node receiving the physical broadcast channel at each time, the receiving efficiency of the node receiving the physical broadcast channel is improved. Further, the success rate of the node receiving the physical broadcast channel to receive the physical broadcast channel is ensured.

[0082] Exemplarily, it is assumed that the physical broadcast channel needs to transmit 10-bit effective information, it is assumed that the code rate of the first encoding mode is 1 / 3, and it is assumed that the code rate of the second encoding mode is 1 / 4; 30 bits of information can be obtained based on the first encoding mode, and 40 bits of information can be obtained based on the second encoding mode.

[0083] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the encoding mode of the content carried by the physical broadcast channel is a first encoding mode; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the encoding mode of the content carried by the physical broadcast channel is a second encoding mode.

[0084] It should be understood that the encoding mode of the content carried by the physical broadcast channel corresponding to the synchronization signal of the number of time domain symbols occupied in the time domain can be different, so that the change of the encoding mode of the content carried by the physical broadcast channel can be determined by the change of the number of time domain symbols occupied by the synchronization signal in the time domain, and the success rate of receiving the physical broadcast channel by the node receiving the physical broadcast channel is ensured.

[0085] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the modulation mode of the physical broadcast channel is a first modulation mode; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the modulation mode of the physical broadcast channel is a second modulation mode; the number of bits carried by the symbol corresponding to the first modulation mode is greater than or equal to the number of bits carried by the symbol corresponding to the second modulation mode.

[0086] It should be understood that the smaller the number of time domain symbols occupied by the synchronization signal in the time domain, the more data each time domain symbol corresponds to under the condition that the amount of data corresponding to the synchronization signal is certain. It is further explained that the node receiving the synchronization signal can process more data at a time, which reflects that the node receiving the synchronization signal has stronger receiving ability for the synchronization signal. Therefore, it can be determined that the node receiving the synchronization signal has stronger receiving ability.

[0087] It should be understood that the higher the number of bits carried by the symbol corresponding to the modulation mode, the longer the length of the symbol corresponding to the modulation mode, and the greater the workload of the receiving end when receiving the symbol. Therefore, in the case that the receiving ability of the node receiving the synchronization signal is strong, the number of bits carried by the symbol corresponding to the modulation mode used by the physical broadcast channel can be large.

[0088] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the constellation mapping mode of the physical broadcast channel is a first constellation mapping mode; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the constellation mapping mode of the physical broadcast channel is a second constellation mapping mode.

[0089] It should be understood that the smaller the number of time domain symbols occupied by the synchronization signal in the time domain, the more data each time domain symbol corresponds to under the condition that the amount of data corresponding to the synchronization signal is certain. It is further explained that the node receiving the synchronization signal can process more data at a time, which reflects that the node receiving the synchronization signal has stronger receiving ability for the synchronization signal. Therefore, it can be determined that the node receiving the synchronization signal has stronger receiving ability.

[0090] It should be understood that the constellation mapping manner of the physical broadcast channel is used to ensure the transmission quality of the physical broadcast channel and reduce the interference of the electromagnetic environment during transmission. In the case that the receiving capabilities of the nodes receiving the synchronization signal are different, the state of the transmission link between the nodes receiving the synchronization signal and the first node can be different, and thus the constellation mapping manner of the physical broadcast channel can be different.

[0091] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the demodulation reference signal configuration information of the physical broadcast channel is first demodulation reference signal configuration information; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the demodulation reference signal configuration information of the physical broadcast channel is second demodulation reference signal configuration information; the frequency domain resource occupied by the demodulation reference signal configured by the first demodulation reference signal configuration information on the time domain symbol is greater than or equal to the frequency domain resource occupied by the demodulation reference signal configured by the second demodulation reference signal configuration information on the time domain symbol.

[0092] It should be understood that the smaller the number of time domain symbols occupied by the synchronization signal in the time domain, the more data corresponding to each time domain symbol in the case that the amount of data corresponding to the synchronization signal is certain. It is further illustrated that the node receiving the synchronization signal can process more data at a time, which reflects that the node receiving the synchronization signal has stronger receiving capability for the synchronization signal. Therefore, it can be determined that the node receiving the synchronization signal has stronger receiving capability.

[0093] It should be understood that the demodulation reference signal corresponding to the physical broadcast channel is used for the node receiving the physical broadcast channel to perform channel estimation, thereby providing support for the node receiving the physical broadcast channel to receive the physical broadcast channel.

[0094] It should be understood that the greater the frequency domain resource occupied by the demodulation reference signal on the time domain symbol, the higher the accuracy of channel estimation.

[0095] It should be understood that in the case that the node receiving the synchronization signal has stronger receiving capability, it indicates that the node receiving the synchronization signal has stronger processing capability for the demodulation reference signal. At this time, the frequency domain resource occupied by the demodulation reference signal on the time domain symbol can be greater, so that the node receiving the synchronization signal can more accurately and reliably perform channel estimation, and thus the success rate of the node receiving the synchronization signal to receive the physical broadcast channel is improved.

[0096] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the period interval corresponding to the transmission period of the physical broadcast channel is a first period interval; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the period interval corresponding to the transmission period of the physical broadcast channel is a second period interval; the first period interval is less than or equal to the second period interval.

[0097] It should be understood that the smaller the number of time domain symbols occupied by the synchronization signal in the time domain, the more data each time domain symbol corresponds to under the condition that the amount of data corresponding to the synchronization signal is certain. It is further illustrated that the node receiving the synchronization signal can process more data at a time, reflecting that the node receiving the synchronization signal has strong receiving capability for the synchronization signal. Therefore, it can be determined that the node receiving the synchronization signal has strong receiving capability.

[0098] It should be understood that the shorter the transmission period of the physical broadcast channel, the shorter the time left for the node receiving the physical broadcast channel to process the physical broadcast channel of the last period. In the case that the receiving capability of the node receiving the synchronization signal is strong, the node receiving the synchronization signal can complete the processing related to the physical broadcast channel faster, at this time, the period interval corresponding to the transmission period of the physical broadcast channel can be shorter. In this way, the processing efficiency of the node receiving the synchronization signal can be improved.

[0099] In addition, in some scenarios, the node receiving the synchronization signal may have multiple services to process due to its strong capability, at this time, shortening the period interval corresponding to the transmission period of the physical broadcast channel can enable the node receiving the synchronization signal to complete the service corresponding to the physical broadcast channel faster, leaving time for subsequent services, and ensuring that the node receiving the synchronization signal can reliably complete the processing of multiple services.

[0100] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the number of physical broadcast channels in one transmission period corresponding to the physical broadcast channel is a seventh number; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the number of physical broadcast channels in one transmission period corresponding to the physical broadcast channel is an eighth number; the seventh number and the eighth number are positive integers.

[0101] It should be understood that one physical broadcast channel may not be able to meet the expected channel coverage area, therefore, in one transmission period corresponding to the physical broadcast channel, multiple physical broadcast channels may be transmitted in parallel to ensure the channel coverage range of the physical broadcast channel. For synchronization signals with different numbers of time domain symbols occupied in the time domain, the number of physical broadcast channels that need to be transmitted in parallel in one transmission period of the physical broadcast channel corresponding to the synchronization channel can be different.

[0102] In some embodiments, the physical broadcast channel is transmitted using a signal of a higher frequency band. At this time, multiple physical broadcast channels can be transmitted using different beams to achieve coverage enhancement and ensure the coverage range of the physical broadcast channel. Each physical broadcast channel corresponds to a synchronization signal.

[0103] Exemplarily, as shown in FIG. 5, a schematic diagram of parallel transmitting a physical broadcast channel is provided for an embodiment of the present disclosure. In each transmitting period, two synchronization signals and a physical broadcast channel corresponding to each synchronization signal are included. The two physical broadcast channels have different transmitting directions to cover different areas.

[0104] In some embodiments, the frequency domain resource information of the synchronization signal includes a number of frequency domain units occupied by the synchronization signal in the frequency domain; the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number or a second number; the first number is less than or equal to the second number; the first number and the second number are positive integers; and there is an association relationship between the frequency domain resource information of the synchronization signal and the feature of the physical broadcast channel, including at least one of the following:

[0105] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is the first number, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a third number; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is the second number, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a fourth number; the third number is greater than or equal to the fourth number; and the third number and the fourth number are positive integers.

[0106] It should be understood that the fewer the number of frequency domain units occupied by the synchronization signal in the frequency domain, the smaller the total amount of data corresponding to all the frequency domain units. Further, it indicates that the receiving capability of the node receiving the synchronization signal is weaker. That is, the receiving capability of the node receiving the synchronization signal is weaker.

[0107] It should be understood that in the case that the receiving capability of the node receiving the synchronization signal is weaker, the number of time domain symbols occupied by the physical broadcast channel in the time domain can be larger. In this way, the node receiving the synchronization signal can receive multiple groups of frequency domain units, receive less data each time, complete the reception of the physical broadcast channel, and improve the success rate of receiving the physical broadcast channel.

[0108] Exemplarily, as shown in FIG. 6, a schematic diagram of another association relationship is provided for an embodiment of the present disclosure, which is used to indicate the association relationship between the frequency domain resource of the synchronization signal and the time domain length of the physical broadcast channel. The smaller the number of frequency domain resources of the synchronization signal, the longer the time domain length of the physical broadcast channel.

[0109] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is the first number, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a fifth number; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is the second number, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a sixth number; the fifth number is less than or equal to the sixth number; and the fifth number and the sixth number are positive integers.

[0110] It should be understood that the fewer the number of frequency domain units occupied by the synchronization signal in the frequency domain, the less the total amount of data corresponding to all the frequency domain units. Further, it is indicated that the receiving capability of the node receiving the synchronization signal is weak. That is, the receiving capability of the node receiving the synchronization signal is weak.

[0111] It should be understood that in the case that the receiving capability of the node receiving the synchronization signal is weak, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain can be small. In this way, the number of frequency domain units that the node receiving the synchronization signal needs to process is small, and it can be ensured that the node receiving the synchronization signal can reliably complete the reception of the physical broadcast channel.

[0112] Exemplarily, as shown in FIG. 7, another schematic diagram of the association relationship is provided for indicating the association relationship between the frequency domain resource of the synchronization signal and the frequency domain resource of the physical broadcast channel. The smaller the number of frequency domain resources of the synchronization signal, the smaller the number of frequency domain resources of the physical broadcast channel.

[0113] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the encoding code rate of the content carried by the physical broadcast channel is a first code rate; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the encoding code rate of the content carried by the physical broadcast channel is a second code rate; the first code rate is less than or equal to the second code rate.

[0114] It should be understood that the fewer the number of frequency domain units occupied by the synchronization signal in the frequency domain, the less the total amount of data corresponding to all the frequency domain units. Further, it is indicated that the receiving capability of the node receiving the synchronization signal is weak. That is, the receiving capability of the node receiving the synchronization signal is weak.

[0115] It should be understood that in the case that the receiving capability of the node receiving the synchronization signal is weak, the encoding code rate of the content carried by the physical broadcast channel can be large. In this way, the proportion of redundant data in the data transmitted by the physical broadcast channel is high, which can better ensure the reliability of data transmission, so that the node receiving the synchronization signal can accurately receive data in the case that the receiving capability is weak, and the success rate of receiving the physical broadcast channel is improved.

[0116] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the encoding mode of the content carried by the physical broadcast channel is a first encoding mode; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the encoding mode of the content carried by the physical broadcast channel is a second encoding mode.

[0117] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the modulation mode of the physical broadcast channel is a first modulation mode; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the modulation mode of the physical broadcast channel is a second modulation mode; the number of bits carried by a symbol corresponding to the first modulation mode is less than or equal to the number of bits carried by a symbol corresponding to the second modulation mode.

[0118] It should be understood that the fewer the number of frequency domain units occupied by the synchronization signal in the frequency domain, the smaller the total amount of data corresponding to all the frequency domain units. Further, it is indicated that the receiving capability of the node receiving the synchronization signal is weak. That is, the receiving capability of the node receiving the synchronization signal is weak.

[0119] It should be understood that in the case that the receiving capability of the node receiving the synchronization signal is weak, the number of bits carried by a symbol corresponding to the modulation mode of the physical broadcast channel can be small. In this way, the amount of processing required by the node receiving the synchronization signal to receive the physical broadcast channel can be reduced, and the success rate of receiving the physical broadcast channel can be improved.

[0120] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the constellation mapping mode of the physical broadcast channel is a first constellation mapping mode; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the constellation mapping mode of the physical broadcast channel is a second constellation mapping mode.

[0121] It should be understood that the fewer the number of frequency domain units occupied by the synchronization signal in the frequency domain, the smaller the total amount of data corresponding to all the frequency domain units. Further, it is indicated that the receiving capability of the node receiving the synchronization signal is weak. That is, the receiving capability of the node receiving the synchronization signal is weak.

[0122] It should be understood that the constellation mapping mode of the physical broadcast channel is used to ensure the transmission quality of the physical broadcast channel and reduce the interference of the electromagnetic environment during transmission. In the case that the receiving capability of the node receiving the synchronization signal is different, the state of the transmission link between the node receiving the synchronization signal and the first node can be different, and therefore, the constellation mapping mode of the physical broadcast channel can be different.

[0123] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the demodulation reference signal configuration information of the physical broadcast channel is first demodulation reference signal configuration information; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the demodulation reference signal configuration information of the physical broadcast channel is second demodulation reference signal configuration information; the frequency domain resource occupied by the demodulation reference signal of the first demodulation reference signal configuration information in the time domain symbol is less than or equal to the frequency domain resource occupied by the demodulation reference signal of the second demodulation reference signal configuration information in the time domain symbol.

[0124] It should be understood that the fewer the number of frequency domain units occupied by the synchronization signal in the frequency domain, the smaller the total amount of data corresponding to all the frequency domain units. Further, it is indicated that the receiving capability of the node receiving the synchronization signal is weak. That is, the receiving capability of the node receiving the synchronization signal is weak.

[0125] It should be understood that in the case that the receiving capability of the node receiving the synchronization signal is weak, the frequency domain resource occupied by the demodulation reference signal of the physical broadcast channel in the time domain symbol can be small. In this way, when the node receiving the synchronization signal processes the demodulation reference signal of the physical broadcast channel, the amount of data to be processed is small, which is suitable for the processing capability of the node receiving the synchronization signal. It is ensured that the node receiving the synchronization signal can reliably complete the channel estimation of the physical broadcast channel based on the demodulation reference signal of the physical broadcast channel, and the success rate of receiving the physical broadcast channel is improved.

[0126] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the periodic interval corresponding to the transmission period of the physical broadcast channel is a first periodic interval; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the periodic interval corresponding to the transmission period of the physical broadcast channel is a second periodic interval; the first periodic interval is greater than or equal to the second periodic interval.

[0127] It should be understood that the fewer the number of frequency domain units occupied by the synchronization signal in the frequency domain, the smaller the total amount of data corresponding to all the frequency domain units. Further, it is indicated that the receiving capability of the node receiving the synchronization signal is weak. That is, the receiving capability of the node receiving the synchronization signal is weak.

[0128] It should be understood that in the case that the receiving capability of the node receiving the synchronization signal is weak, the periodic interval corresponding to the transmission period of the physical broadcast channel can be large. In this way, it can be ensured that the physical broadcast channel can be received in the next period after the processing of the physical broadcast channel in the previous period is completed. The success rate of receiving the physical broadcast channel is improved.

[0129] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the number of physical broadcast channels in one transmission period corresponding to the physical broadcast channel is a seventh number; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the number of physical broadcast channels in one transmission period corresponding to the physical broadcast channel is an eighth number; the seventh number and the eighth number are positive integers.

[0130] It should be understood that one physical broadcast channel can not satisfy the expected channel coverage area, and therefore, multiple physical broadcast channels can be sent in parallel in one transmission period of the physical broadcast channel corresponding to the synchronization signal to ensure the channel coverage of the physical broadcast channel. For synchronization signals of different numbers of frequency domain units, the number of physical broadcast channels that need to be sent in parallel in one transmission period of the physical broadcast channel corresponding to the synchronization channel can be different.

[0131] In some embodiments, the sequence corresponding to the synchronization signal is a first sequence or a second sequence; and there is an association between the sequence corresponding to the synchronization signal and the characteristics of the physical broadcast channel, and the association includes at least one of the following:

[0132] If the sequence corresponding to the synchronization signal is the first sequence, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a first number; if the sequence corresponding to the synchronization signal is the second sequence, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a second number; the first number is less than or equal to the second number; and the first number and the second number are positive integers.

[0133] It should be understood that the first sequence and the second sequence are different sequences. By establishing an association between the sequence of the synchronization signal and the number of time domain symbols occupied by the physical broadcast channel in the time domain, when the synchronization signal starts to use the first sequence or starts to use the second sequence, the node receiving the synchronization signal can directly determine whether the number of time domain symbols occupied by the physical broadcast channel to be received in the time domain will increase or decrease. Therefore, the success rate of receiving the physical broadcast channel can be improved.

[0134] If the sequence corresponding to the synchronization signal is the first sequence, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a third number; if the sequence corresponding to the synchronization signal is the second sequence, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a fourth number; the third number is less than or equal to the fourth number; and the third number and the fourth number are positive integers.

[0135] It should be understood that the first sequence and the second sequence are different sequences. By establishing an association between the sequence corresponding to the synchronization signal and the number of frequency domain units occupied by the physical broadcast channel in the frequency domain, when the synchronization signal starts to use the first sequence or starts to use the second sequence, the node receiving the synchronization signal can directly determine whether the number of frequency domain units occupied by the physical broadcast channel to be received in the frequency domain will increase or decrease. Therefore, the success rate of receiving the physical broadcast channel can be improved.

[0136] If the sequence corresponding to the synchronization signal is the first sequence, the coding rate of the physical broadcast channel is a first coding rate; if the sequence corresponding to the synchronization signal is the second sequence, the coding rate of the physical broadcast channel is a second coding rate; and the first coding rate is less than or equal to the second coding rate.

[0137] It should be understood that the first sequence and the second sequence are different sequences. By establishing the association between the sequence corresponding to the synchronization signal and the coding rate of the physical broadcast channel, when the synchronization signal starts to use the first sequence or starts to use the second sequence, the node receiving the synchronization signal can directly determine whether the coding rate of the physical broadcast channel to be received will increase or decrease. Thus, the success rate of receiving the physical broadcast channel can be improved.

[0138] If the sequence corresponding to the synchronization signal is the first sequence, the modulation mode of the physical broadcast channel is the first modulation mode; if the sequence corresponding to the synchronization signal is the second sequence, the modulation mode of the physical broadcast channel is the second modulation mode; the number of bits carried by the symbol corresponding to the first modulation mode is less than or equal to the number of bits carried by the symbol corresponding to the second modulation mode.

[0139] It should be understood that the first sequence and the second sequence are different sequences. By establishing the association between the sequence corresponding to the synchronization signal and the modulation mode of the physical broadcast channel, when the synchronization signal starts to use the first sequence or starts to use the second sequence, the node receiving the synchronization signal can directly determine whether the number of bits carried by the symbol corresponding to the modulation mode of the physical broadcast channel to be received will increase or decrease. Thus, the success rate of receiving the physical broadcast channel can be improved.

[0140] If the sequence corresponding to the synchronization signal is the first sequence, the constellation mapping mode of the physical broadcast channel is the first constellation mapping mode; if the sequence corresponding to the synchronization signal is the second sequence, the constellation mapping mode of the physical broadcast channel is the second constellation mapping mode.

[0141] It should be understood that the first sequence and the second sequence are different sequences. By establishing the association between the sequence corresponding to the synchronization signal and the constellation mapping mode of the physical broadcast channel, when the synchronization signal starts to use the first sequence or starts to use the second sequence, the node receiving the synchronization signal can directly determine the constellation mapping mode of the physical broadcast channel to be received. Thus, the success rate of receiving the physical broadcast channel can be improved.

[0142] If the sequence corresponding to the synchronization signal is the first sequence, the demodulation reference signal configuration information of the physical broadcast channel is the first demodulation reference signal configuration information; if the sequence corresponding to the synchronization signal is the second sequence, the demodulation reference signal configuration information of the physical broadcast channel is the second demodulation reference signal configuration information; the frequency domain resource occupied by the demodulation reference signal configured by the first demodulation reference signal configuration information in the time domain symbol is greater than or equal to the frequency domain resource occupied by the demodulation reference signal configured by the second demodulation reference signal configuration information in the time domain symbol.

[0143] It should be understood that the first sequence and the second sequence are different sequences. By establishing the association between the sequence corresponding to the synchronization signal and the demodulation reference signal configuration information of the physical broadcast channel, when the synchronization signal starts to use the first sequence or starts to use the second sequence, the node receiving the synchronization signal can directly determine whether the frequency domain resource occupied by the demodulation reference signal corresponding to the modulation mode of the physical broadcast channel to be received in the time domain symbol will rise or fall. Therefore, the success rate of receiving the physical broadcast channel can be improved.

[0144] If the sequence corresponding to the synchronization signal is the first sequence, the period interval corresponding to the transmission period of the physical broadcast channel is the first period interval; if the sequence corresponding to the synchronization signal is the second sequence, the period interval corresponding to the transmission period of the physical broadcast channel is the second period interval; the first period interval is less than or equal to the second period interval.

[0145] It should be understood that the first sequence and the second sequence are different sequences. By establishing the association between the sequence corresponding to the synchronization signal and the period interval corresponding to the transmission period of the physical broadcast channel, when the synchronization signal starts to use the first sequence or starts to use the second sequence, the node receiving the synchronization signal can directly determine whether the period interval corresponding to the transmission period of the physical broadcast channel to be received will rise or fall. Therefore, the success rate of receiving the physical broadcast channel can be improved.

[0146] If the sequence corresponding to the synchronization signal is the first sequence, the number of physical broadcast channels in one transmission period corresponding to the physical broadcast channel is the fifth number; if the sequence corresponding to the synchronization signal is the second sequence, the number of physical broadcast channels in one transmission period corresponding to the physical broadcast channel is the sixth number; the fifth number is less than or equal to the sixth number; the fifth number and the sixth number are positive integers.

[0147] It should be understood that the first sequence and the second sequence are different sequences. By establishing the association between the sequence corresponding to the synchronization signal and the number of physical broadcast channels in one transmission period corresponding to the physical broadcast channel, when the synchronization signal starts to use the first sequence or starts to use the second sequence, the node receiving the synchronization signal can directly determine whether the number of physical broadcast channels in one transmission period corresponding to the physical broadcast channel to be received will rise or fall. Therefore, the success rate of receiving the physical broadcast channel can be improved.

[0148] In some embodiments, the first sequence satisfies at least one of the following: the first sequence belongs to a first sequence set; the first sequence is obtained based on a first formula; the first sequence is obtained based on a plurality of sequences.

[0149] In some embodiments, the second sequence satisfies at least one of the following: the second sequence belongs to a second sequence set; the second sequence is obtained based on a second formula; the second sequence is obtained based on a plurality of sequences.

[0150] In some embodiments, the first constellation mapping manner and the second constellation mapping manner satisfy at least one of the following:

[0151] The position of at least one constellation point in the first constellation mapping manner is different from that in the second constellation mapping manner.

[0152] There are M constellation points with the same position in the constellation corresponding to the first constellation mapping manner and the constellation corresponding to the second constellation mapping manner; at least one of the M constellation points corresponds to different bit sets, and M is a positive integer.

[0153] It should be understood that the difference between the first constellation mapping manner and the second constellation mapping manner is that the position of at least one constellation point in the first constellation mapping manner is different from that in the second constellation mapping manner. At this time, the two constellation mapping manners are used to adapt to different channel conditions.

[0154] It should be understood that the difference between the first constellation mapping manner and the second constellation mapping manner is that there are M constellation points with the same position in the constellation corresponding to the first constellation mapping manner and the constellation corresponding to the second constellation mapping manner; at least one of the M constellation points corresponds to different bit sets. At this time, the physical positions of the at least one constellation point may be the same, but the bit information represented is different. In this way, the mutual interference between the two physical broadcast channels using different constellation mapping manners can be reduced, thereby better increasing the security and reliability of data transmission.

[0155] In some embodiments, the following association relationship exists between the carrier frequency corresponding to the synchronization signal and the broadcast information content of the physical broadcast channel:

[0156] If the carrier frequency corresponding to the synchronization signal satisfies the carrier frequency constraint condition, the configuration information of the phase tracking reference signal is included in the broadcast information content of the physical broadcast channel; the carrier frequency constraint condition is used to indicate that the carrier frequency corresponding to the synchronization signal is greater than or equal to a carrier frequency threshold.

[0157] It should be understood that the higher the carrier frequency corresponding to the signal or channel, the greater the phase deviation that exists in the transmission process of the signal or channel. In the case of large phase deviation, the communication quality of the communication link may not meet the expected communication quality, at which time phase compensation needs to be performed through the phase tracking reference signal to ensure the communication quality of the communication link.

[0158] It should be understood that, since the carrier frequency constraint condition is used to indicate that the carrier frequency corresponding to the synchronization signal is greater than or equal to the carrier frequency threshold, when the carrier frequency corresponding to the synchronization signal satisfies the carrier frequency constraint condition, it means that the carrier frequency used by the physical broadcast channel is high, and at this time, the phase deviation generated is large. At this time, the configuration information of the phase tracking reference signal is included in the broadcast information content of the physical broadcast channel, so that the receiving end and the transmitting end of the physical broadcast channel can perform phase compensation through the phase tracking reference signal, and ensure the communication quality of the communication link.

[0159] In some embodiments, the configuration information of the phase tracking reference signal includes at least one of the following: whether to send the phase tracking reference signal, a way of triggering to send the phase tracking reference signal, a time domain position of the phase tracking reference signal, a frequency domain position of the phase tracking reference signal, a transmission power of the phase tracking reference signal, a sequence corresponding to the phase tracking reference signal, and a transmission mode of the phase tracking reference signal.

[0160] In some embodiments, the transmission mode of the phase tracking reference signal includes one of the following: sending the phase tracking reference signal on a physical downlink shared channel carrying system information, sending the phase tracking reference signal on a physical uplink shared channel carrying access-related information, sending the phase tracking reference signal on the physical downlink shared channel, and sending the phase tracking reference signal on the physical uplink shared channel.

[0161] In some embodiments, the phase tracking reference signal is sent on the physical downlink shared channel carrying the system information, or on the physical uplink shared channel carrying the access-related information, or on the physical downlink shared channel, or on the physical uplink shared channel, in the case that one of the following is met:

[0162] The number of time domain symbols occupied by the synchronization signal in the time domain is a first number and a second number, and the first number is less than or equal to the second number;

[0163] The number of frequency domain units occupied by the synchronization signal in the frequency domain is a third number and a fourth number, and the third number is less than or equal to the fourth number;

[0164] The sequence corresponding to the synchronization signal is a first sequence;

[0165] The carrier frequency corresponding to the synchronization signal is greater than or equal to a carrier frequency threshold.

[0166] It should be understood that, since the synchronization signal is used for the transmitting end and the receiving end of the physical broadcast channel to complete time-frequency synchronization.

[0167] It should be understood that, in the case that the number of time domain symbols occupied by the synchronization signal in the time domain is small, the amount of information carried on the synchronization signal can be small, and in this case, the effect of time-frequency synchronization of the transmitting end and the receiving end of the physical broadcast channel based on the synchronization signal can be poor. In this case, in order to ensure the communication quality between the transmitting end and the receiving end of the physical broadcast channel, a phase tracking reference signal can be transmitted on the physical downlink shared channel carrying system information, or a phase tracking reference signal can be transmitted on the physical uplink shared channel carrying access-related information, or a phase tracking reference signal can be transmitted on the physical downlink shared channel, or a phase tracking reference signal can be transmitted on the physical uplink shared channel. In this way, the transmitting end or the receiving end of the broadcast channel can perform phase compensation, and the communication quality between the transmitting end and the receiving end of the physical broadcast channel can be improved.

[0168] It should be understood that, in the case that the number of frequency domain units occupied by the synchronization signal in the frequency domain is small, the amount of information carried on the synchronization signal can be small, and in this case, the effect of time-frequency synchronization of the transmitting end and the receiving end of the physical broadcast channel based on the synchronization signal can be poor. In this case, in order to ensure the communication quality between the transmitting end and the receiving end of the physical broadcast channel, a phase tracking reference signal can be transmitted on the physical downlink shared channel carrying system information, or a phase tracking reference signal can be transmitted on the physical uplink shared channel carrying access-related information, or a phase tracking reference signal can be transmitted on the physical downlink shared channel, or a phase tracking reference signal can be transmitted on the physical uplink shared channel. In this way, the transmitting end or the receiving end of the broadcast channel can perform phase compensation, and the communication quality between the transmitting end and the receiving end of the physical broadcast channel can be improved.

[0169] It should be understood that, in the case that the sequence corresponding to the synchronization signal is the first sequence, the amount of information carried by the first sequence can be high, and in this case, the physical broadcast channel corresponding to the first sequence has a higher requirement for phase synchronization. In this case, in order to ensure the communication quality between the transmitting end and the receiving end of the physical broadcast channel, a phase tracking reference signal can be transmitted on the physical downlink shared channel carrying system information, or a phase tracking reference signal can be transmitted on the physical uplink shared channel carrying access-related information, or a phase tracking reference signal can be transmitted on the physical downlink shared channel, or a phase tracking reference signal can be transmitted on the physical uplink shared channel. In this way, the transmitting end or the receiving end of the broadcast channel can perform phase compensation, and the communication quality between the transmitting end and the receiving end of the physical broadcast channel can be improved.

[0170] It should be understood that, the greater the carrier frequency corresponding to the signal, the greater the possibility of phase offset in the process of signal transmission.

[0171] It should be understood that when the carrier frequency corresponding to the synchronization signal is greater than or equal to the carrier frequency threshold, it means that the carrier frequency of the physical broadcast channel is also relatively large. At this time, in order to ensure that the communication quality between the sending end and the receiving end of the physical broadcast channel can meet the expected communication quality, the phase tracking reference signal can be sent on the physical downlink shared channel carrying system information, or the phase tracking reference signal can be sent on the physical uplink shared channel carrying access-related information, or the phase tracking reference signal can be sent on the physical downlink shared channel, or the phase tracking reference signal can be sent on the physical uplink shared channel. In this way, the sending end or the receiving end of the broadcast channel can perform phase compensation, thereby improving the communication quality between the sending end and the receiving end of the physical broadcast channel.

[0172] In some embodiments, the broadcast information content of the physical broadcast channel includes at least one of the following: encoding information of the physical control channel, modulation information of the physical control channel, constellation mapping description information of the physical data shared channel, encoding information of the physical data shared channel, waveform information of the physical uplink data shared channel, information related to one or more functions, information related to one or more models.

[0173] For example, the encoding information of the physical control channel can include at least one of the following: Low Density Parity Check Code (LDPC), Polar Code, Turbo Code, and other encoding methods.

[0174] For example, the modulation information of the physical control channel can include at least one of the following: Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), 8-Phase Shift Keying (8PSK), and 16-Quadrature Amplitude Modulation (16QAM).

[0175] It should be understood that the constellation mapping description information of the physical data shared channel included in the broadcast information content of the physical broadcast channel can enable the first node to transmit the physical data shared channel based on the wireless channel environment and the capability of the node receiving the physical broadcast channel using different constellation mapping description information, thereby improving the flexibility of the communication network.

[0176] It should be understood that the broadcast information content of the physical broadcast channel includes the coding information of the physical data shared channel, which can enable the first node to transmit the physical data shared channel in different coding manners based on the wireless channel environment and the capability of the node receiving the physical broadcast channel, thereby improving the flexibility of the communication network.

[0177] It should be understood that the broadcast information content of the physical broadcast channel includes the waveform information of the physical uplink data shared channel, which can enable the first node to select the waveform information supported by the node receiving the physical broadcast channel based on the capability of the node receiving the physical broadcast channel, thereby improving the communication quality of the communication network. For example, the first node can select a waveform with peak-to-average ratio performance that is suitable for the node receiving the physical broadcast channel.

[0178] It should be understood that the broadcast information content of the physical broadcast channel includes information related to one or more functions, which can enable the node receiving the physical broadcast channel to obtain information related to the one or more functions in the first node, so that the node receiving the physical broadcast channel can determine the content that needs to be reported subsequently based on the information.

[0179] In some embodiments, the information related to one or more functions can be used to indicate at least one of the following: conditions used by the one or more functions, information about whether the first node supports the one or more functions, configuration information of a phase tracking reference signal related to the physical data channel.

[0180] In some embodiments, the one or more functions can include at least one of the following: a beam spatial domain prediction function, a beam time domain prediction function, a channel state information compression function, a positioning function.

[0181] It should be understood that the broadcast information content of the physical broadcast channel includes information related to one or more models, which can enable the node receiving the physical broadcast channel to determine which information related to the one or more models in the first node, so that the node receiving the physical broadcast channel can determine whether to access the first node and / or the content that needs to be reported based on the information.

[0182] In some embodiments, the information related to one or more models can include at least one of the following: conditions used by the one or more models, whether to support the one or more models, structure of the one or more models, parameters of the one or more models, complexity of the one or more models.

[0183] In some embodiments, as shown in FIG. 8, the communication method provided by the embodiments of the present disclosure can be applied to the second node 102 in FIG. 1. FIG. 8 shows a flow diagram of another communication method. The method includes S801-S802:

[0184] S801, receive a synchronization signal sent by a first node.

[0185] S802, receive a physical broadcast channel sent by the first node.

[0186] There is a correlation between the characteristics of the synchronization signal and the characteristics of the physical broadcast channel.

[0187] In some embodiments, the characteristics of the synchronization signal include at least one of the following: time domain resource information of the synchronization signal, frequency domain resource information of the synchronization signal, a sequence corresponding to the synchronization signal, a carrier frequency corresponding to the synchronization signal.

[0188] In some embodiments, the characteristics of the physical broadcast channel include at least one of the following: time domain resource information of the physical broadcast channel, frequency domain resource information of the physical broadcast channel, encoding mode of the physical broadcast channel, modulation mode of the physical broadcast channel, constellation mapping description information of the physical broadcast channel, demodulation reference signal configuration information of the physical broadcast channel, transmission period of the physical broadcast channel, number of physical broadcast channels in one transmission period, broadcast information content of the physical broadcast channel, information related to the phase tracking reference signal.

[0189] In some embodiments, the time domain resource information of the synchronization signal includes the number of time domain symbols occupied by the synchronization signal in the time domain; the number of time domain symbols occupied by the synchronization signal in the time domain is a first number or a second number; the first number is less than or equal to the second number; the first number and the second number are positive integers; there is at least one of the following correlations between the time domain resource information of the synchronization signal and the characteristics of the physical broadcast channel:

[0190] If the number of time domain symbols occupied by the synchronization signal in the time domain is the first number, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a third number; if the number of time domain symbols occupied by the synchronization signal in the time domain is the second number, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a fourth number; the third number is less than or equal to the fourth number; the third number and the fourth number are positive integers.

[0191] If the number of time domain symbols occupied by the synchronization signal in the time domain is the first number, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a fifth number; if the number of time domain symbols occupied by the synchronization signal in the time domain is the second number, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a sixth number; the fifth number is greater than or equal to the sixth number; the fifth number and the sixth number are positive integers.

[0192] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the coding rate of the content carried by the physical broadcast channel is a first coding rate; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the coding rate of the content carried by the physical broadcast channel is a second coding rate; the first coding rate is greater than or equal to the second coding rate.

[0193] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the coding mode of the content carried by the physical broadcast channel is a first coding mode; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the coding mode of the content carried by the physical broadcast channel is a second coding mode.

[0194] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the modulation mode of the physical broadcast channel is a first modulation mode; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the modulation mode of the physical broadcast channel is a second modulation mode; the number of bits carried by a symbol corresponding to the first modulation mode is greater than or equal to the number of bits carried by a symbol corresponding to the second modulation mode.

[0195] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the constellation mapping mode of the physical broadcast channel is a first constellation mapping mode; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the constellation mapping mode of the physical broadcast channel is a second constellation mapping mode.

[0196] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the demodulation reference signal configuration information of the physical broadcast channel is first demodulation reference signal configuration information; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the demodulation reference signal configuration information of the physical broadcast channel is second demodulation reference signal configuration information; the frequency domain resource occupied by the demodulation reference signal configured by the first demodulation reference signal configuration information in the time domain symbol is greater than or equal to the frequency domain resource occupied by the demodulation reference signal configured by the second demodulation reference signal configuration information in the time domain symbol.

[0197] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the period interval corresponding to the transmission period of the physical broadcast channel is a first period interval; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the period interval corresponding to the transmission period of the physical broadcast channel is a second period interval; the first period interval is less than or equal to the second period interval.

[0198] If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the number of physical broadcast channels in a sending period corresponding to the physical broadcast channel is a seventh number; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the number of physical broadcast channels in a sending period corresponding to the physical broadcast channel is an eighth number.

[0199] In some embodiments, the frequency domain resource information of the synchronization signal includes the number of frequency domain units occupied by the synchronization signal in the frequency domain; the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number or a second number; the first number is less than or equal to the second number; the first number and the second number are positive integers; there is an association between the frequency domain resource information of the synchronization signal and the characteristics of the physical broadcast channel at least one of the following:

[0200] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a third number; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a fourth number; the third number is greater than or equal to the fourth number; the third number and the fourth number are positive integers;

[0201] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a fifth number; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a sixth number; the fifth number is less than or equal to the sixth number; the fifth number and the sixth number are positive integers;

[0202] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the coding rate of the content carried by the physical broadcast channel is a first coding rate; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the coding rate of the content carried by the physical broadcast channel is a second coding rate; the first coding rate is less than or equal to the second coding rate.

[0203] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the coding mode of the content carried by the physical broadcast channel is a first coding mode; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the coding mode of the content carried by the physical broadcast channel is a second coding mode.

[0204] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the modulation mode of the physical broadcast channel is a first modulation mode; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the modulation mode of the physical broadcast channel is a second modulation mode; the number of bits carried by the symbol corresponding to the first modulation mode is less than or equal to the number of bits carried by the symbol corresponding to the second modulation mode;

[0205] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the constellation mapping manner of the physical broadcast channel is a first constellation mapping manner; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the constellation mapping manner of the physical broadcast channel is a second constellation mapping manner.

[0206] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the demodulation reference signal configuration information of the physical broadcast channel is first demodulation reference signal configuration information; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the demodulation reference signal configuration information of the physical broadcast channel is second demodulation reference signal configuration information; the frequency domain resource occupied by the demodulation reference signal configured by the first demodulation reference signal configuration information in the time domain symbol is less than or equal to the frequency domain resource occupied by the demodulation reference signal configured by the second demodulation reference signal configuration information in the time domain symbol.

[0207] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the period interval corresponding to the transmission period of the physical broadcast channel is a first period interval; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the period interval corresponding to the transmission period of the physical broadcast channel is a second period interval; the first period interval is greater than or equal to the second period interval.

[0208] If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the number of physical broadcast channels in a transmission period corresponding to the physical broadcast channel is a seventh number; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the number of physical broadcast channels in a transmission period corresponding to the physical broadcast channel is an eighth number.

[0209] In some embodiments, the sequence corresponding to the synchronization signal is a first sequence or a second sequence; there is an association relationship between the sequence corresponding to the synchronization signal and the characteristics of the physical broadcast channel at least one of the following:

[0210] If the sequence corresponding to the synchronization signal is a first sequence, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a first number; if the sequence corresponding to the synchronization signal is a second sequence, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a second number; the first number is less than or equal to the second number; the first number and the second number are positive integers.

[0211] If the sequence corresponding to the synchronization signal is a first sequence, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a third number; if the sequence corresponding to the synchronization signal is a second sequence, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a fourth number; the third number is less than or equal to the fourth number; the third number and the fourth number are positive integers.

[0212] If the sequence corresponding to the synchronization signal is the first sequence, the coding rate of the physical broadcast channel is a first coding rate; if the sequence corresponding to the synchronization signal is the second sequence, the coding rate of the physical broadcast channel is a second coding rate; the first coding rate is less than or equal to the second coding rate.

[0213] If the sequence corresponding to the synchronization signal is the first sequence, the modulation mode of the physical broadcast channel is a first modulation mode; if the sequence corresponding to the synchronization signal is the second sequence, the modulation mode of the physical broadcast channel is a second modulation mode; the number of bits carried by a symbol corresponding to the first modulation mode is less than or equal to the number of bits carried by a symbol corresponding to the second modulation mode.

[0214] If the sequence corresponding to the synchronization signal is the first sequence, the constellation mapping mode of the physical broadcast channel is a first constellation mapping mode; if the sequence corresponding to the synchronization signal is the second sequence, the constellation mapping mode of the physical broadcast channel is a second constellation mapping mode.

[0215] If the sequence corresponding to the synchronization signal is the first sequence, the demodulation reference signal configuration information of the physical broadcast channel is first demodulation reference signal configuration information; if the sequence corresponding to the synchronization signal is the second sequence, the demodulation reference signal configuration information of the physical broadcast channel is second demodulation reference signal configuration information; the frequency domain resource occupied by the demodulation reference signal configured by the first demodulation reference signal configuration information in the time domain symbol is greater than or equal to the frequency domain resource occupied by the demodulation reference signal configured by the second demodulation reference signal configuration information in the time domain symbol.

[0216] If the sequence corresponding to the synchronization signal is the first sequence, the period interval corresponding to the transmission period of the physical broadcast channel is a first period interval; if the sequence corresponding to the synchronization signal is the second sequence, the period interval corresponding to the transmission period of the physical broadcast channel is a second period interval; the first period interval is less than or equal to the second period interval.

[0217] If the sequence corresponding to the synchronization signal is the first sequence, the number of physical broadcast channels in a transmission period corresponding to the physical broadcast channel is a fifth number; if the sequence corresponding to the synchronization signal is the second sequence, the number of physical broadcast channels in a transmission period corresponding to the physical broadcast channel is a sixth number; the fifth number is less than or equal to the sixth number; the fifth number and the sixth number are positive integers.

[0218] In some embodiments, the first sequence satisfies at least one of the following:

[0219] The first sequence belongs to a first sequence set;

[0220] The first sequence is obtained based on a first formula:

[0221] The first sequence is obtained based on a plurality of sequences.

[0222] In some embodiments, the second sequence satisfies at least one of the following:

[0223] The second sequence belongs to a second sequence set;

[0224] The second sequence is obtained based on a second formula:

[0225] The second sequence is obtained based on a plurality of sequences.

[0226] In some embodiments, the first constellation mapping manner and the second constellation mapping manner satisfy at least one of the following:

[0227] At least one position of a constellation point in the first constellation mapping manner is different from that in the second constellation mapping manner;

[0228] There are M constellation points with the same position in a constellation corresponding to the first constellation mapping manner and a constellation corresponding to the second constellation mapping manner; at least one of the M constellation points corresponds to different bit sets, and M is a positive integer.

[0229] In some embodiments, there is the following association relationship between a carrier frequency corresponding to a synchronization signal and broadcast information content of a physical broadcast channel:

[0230] If the carrier frequency corresponding to the synchronization signal satisfies a carrier frequency constraint condition, the broadcast information content of the physical broadcast channel includes configuration information of a phase tracking reference signal; the carrier frequency constraint condition is used to indicate that the carrier frequency corresponding to the synchronization signal is greater than or equal to a carrier frequency threshold.

[0231] In some embodiments, the configuration information of the phase tracking reference signal includes at least one of the following: whether to send the phase tracking reference signal, a manner of triggering sending the phase tracking reference signal, a time domain position of the phase tracking reference signal, a frequency domain position of the phase tracking reference signal, a transmission power of the phase tracking reference signal, a sequence corresponding to the phase tracking reference signal, and a transmission manner of the phase tracking reference signal.

[0232] In some embodiments, the transmission manner of the phase tracking reference signal includes one of the following: sending the phase tracking reference signal on a physical downlink shared channel carrying system information, sending the phase tracking reference signal on a physical uplink shared channel carrying access related information, sending the phase tracking reference signal on the physical downlink shared channel, and sending the phase tracking reference signal on the physical uplink shared channel.

[0233] In some embodiments, the phase tracking reference signal is sent on the physical downlink shared channel carrying the system information, or the phase tracking reference signal is sent on the physical uplink shared channel carrying the access related information, or the phase tracking reference signal is sent on the physical downlink shared channel, or the phase tracking reference signal is sent on the physical uplink shared channel, in the case that one of the following is satisfied:

[0234] The number of time-domain symbols occupied by the synchronization signal in the time domain is the first of the first and second quantities; the first quantity is less than or equal to the second quantity.

[0235] The number of frequency domain units occupied by the synchronization signal in the frequency domain is the third of the third and fourth quantities; the third quantity is less than or equal to the fourth quantity.

[0236] The sequence corresponding to the synchronization signal is the first sequence;

[0237] The carrier frequency corresponding to the synchronization signal is greater than or equal to the carrier frequency threshold.

[0238] In some embodiments, the broadcast information content of the physical broadcast channel includes at least one of the following: encoding information of the physical control channel, modulation information of the physical control channel, constellation map mapping description information of the physical data sharing channel, encoding information of the physical data sharing channel, waveform information of the physical uplink data sharing channel, information related to one or more functions, information related to one or more models, and configuration information of the phase tracking reference signal related to the physical data channel.

[0239] It should be noted that the explanation of the embodiment of the communication method shown in Figure 8 can be referred to the explanation of the embodiment of the communication method shown in Figure 2, and will not be repeated here.

[0240] As shown in Figure 9, the communication method provided in this embodiment can be applied to the first node 101 in Figure 2. Figure 9 shows a flowchart of another communication method, including S901-S902:

[0241] S901, Send synchronization signal.

[0242] S902, Send phase tracking reference signal.

[0243] There is a correlation between the characteristics of the synchronization signal and the configuration information of the phase tracking reference signal.

[0244] It should be understood that, because there is a correlation between the characteristics of the synchronization signal and the configuration information of the phase tracking reference signal, after transmitting the synchronization signal, the node receiving the synchronization signal can determine the configuration information of the phase tracking reference signal that the first node will transmit based on the characteristics of the synchronization signal. In this way, the node receiving the synchronization signal can obtain prior knowledge of the phase tracking reference signal that the first node will transmit, thereby improving the success rate of the second node receiving the phase tracking reference signal transmitted by the first node and ensuring that a reliable communication link can be established between the first and second nodes.

[0245] In some embodiments, the synchronization signal features include at least one of the following:

[0246] time domain resource information of the synchronization signal, frequency domain resource information of the synchronization signal, a sequence corresponding to the synchronization signal, a carrier frequency corresponding to the synchronization signal.

[0247] In some embodiments, the configuration information of the phase tracking reference signal comprises at least one of the following: whether to send the phase tracking reference signal, a manner of triggering sending the phase tracking reference signal, a time domain position of the phase tracking reference signal, a frequency domain position of the phase tracking reference signal, a transmission power of the phase tracking reference signal, a sequence corresponding to the phase tracking reference signal, a transmission manner of the phase tracking reference signal.

[0248] In some embodiments, the transmission manner of the phase tracking reference signal comprises one of the following: sending the phase tracking reference signal on a physical downlink shared channel carrying system information, sending the phase tracking reference signal on a physical uplink shared channel carrying access related information, sending the phase tracking reference signal on the physical downlink shared channel, sending the phase tracking reference signal on the physical uplink shared channel.

[0249] In some embodiments, the phase tracking reference signal is sent on the physical downlink shared channel carrying system information, or the phase tracking reference signal is sent on the physical uplink shared channel carrying access related information, or the phase tracking reference signal is sent on the physical downlink shared channel, or the phase tracking reference signal is sent on the physical uplink shared channel, in the case that one of the following is met:

[0250] The number of time domain symbols occupied by the synchronization signal in the time domain is a first number and a second number, wherein the first number is less than or equal to the second number.

[0251] The number of frequency domain units occupied by the synchronization signal in the frequency domain is a third number and a fourth number, wherein the third number is less than or equal to the fourth number.

[0252] The sequence corresponding to the synchronization signal is a first sequence.

[0253] The carrier frequency corresponding to the synchronization signal is greater than or equal to a carrier frequency threshold.

[0254] It should be understood that the synchronization signal is used for time-frequency synchronization between the sending end and the receiving end of the signal or channel corresponding to the synchronization signal.

[0255] It should be understood that, in the case that the number of time domain symbols occupied by the synchronization signal in the time domain is small, the amount of information carried on the synchronization signal can be small, and at this time, the effect of time-frequency synchronization of the transmitting end and the receiving end of the signal or channel corresponding to the synchronization signal based on the synchronization signal can be poor. At this time, in order to ensure the communication quality between the transmitting end and the receiving end of the signal or channel corresponding to the synchronization signal, a phase tracking reference signal can be sent on the physical downlink shared channel carrying system information, or a phase tracking reference signal can be sent on the physical uplink shared channel carrying access-related information, or a phase tracking reference signal can be sent on the physical downlink shared channel, or a phase tracking reference signal can be sent on the physical uplink shared channel. In this way, the transmitting end or the receiving end of the broadcast channel can perform phase compensation, and the communication quality between the transmitting end and the receiving end of the signal or channel corresponding to the synchronization signal can be improved.

[0256] It should be understood that, in the case that the number of frequency domain units occupied by the synchronization signal in the frequency domain is small, the amount of information carried on the synchronization signal can be small, and at this time, the effect of time-frequency synchronization of the transmitting end and the receiving end of the signal or channel corresponding to the synchronization signal based on the synchronization signal can be poor. At this time, in order to ensure the communication quality between the transmitting end and the receiving end of the signal or channel corresponding to the synchronization signal, a phase tracking reference signal can be sent on the physical downlink shared channel carrying system information, or a phase tracking reference signal can be sent on the physical uplink shared channel carrying access-related information, or a phase tracking reference signal can be sent on the physical downlink shared channel, or a phase tracking reference signal can be sent on the physical uplink shared channel. In this way, the transmitting end or the receiving end of the broadcast channel can perform phase compensation, and the communication quality between the transmitting end and the receiving end of the signal or channel corresponding to the synchronization signal can be improved.

[0257] It should be understood that, in the case that the sequence corresponding to the synchronization signal is the first sequence, the amount of information carried by the first sequence can be high, and at this time, the signal or channel corresponding to the synchronization signal corresponding to the first sequence has higher requirements for phase synchronization. At this time, in order to ensure the communication quality between the transmitting end and the receiving end of the signal or channel corresponding to the synchronization signal, a phase tracking reference signal can be sent on the physical downlink shared channel carrying system information, or a phase tracking reference signal can be sent on the physical uplink shared channel carrying access-related information, or a phase tracking reference signal can be sent on the physical downlink shared channel, or a phase tracking reference signal can be sent on the physical uplink shared channel. In this way, the transmitting end or the receiving end of the broadcast channel can perform phase compensation, and the communication quality between the transmitting end and the receiving end of the signal or channel corresponding to the synchronization signal can be improved.

[0258] It should be understood that, the larger the carrier frequency of the signal, the greater the possibility of phase offset in the process of signal transmission.

[0259] It should be understood that when the carrier frequency corresponding to the synchronization signal is greater than or equal to the carrier frequency threshold, it means that the carrier frequency of the signal or channel corresponding to the synchronization signal is also relatively large. At this time, in order to ensure that the communication quality between the sending end and the receiving end of the signal or channel corresponding to the synchronization signal can meet the expected communication quality, the phase tracking reference signal can be sent on the physical downlink shared channel carrying system information, or the phase tracking reference signal can be sent on the physical uplink shared channel carrying access-related information, or the phase tracking reference signal can be sent on the physical downlink shared channel, or the phase tracking reference signal can be sent on the physical uplink shared channel. In this way, the sending end or the receiving end of the broadcast channel can perform phase compensation, thereby improving the communication quality between the sending end and the receiving end of the signal or channel corresponding to the synchronization signal.

[0260] As shown in FIG. 10, another communication method provided by the embodiments of the present disclosure can be applied to the second node 102 in FIG. 2. A flowchart of another communication method is shown in FIG. 10, including S1001-S1002:

[0261] S1001, receiving a synchronization signal sent by a first node.

[0262] S1002, receiving a phase tracking reference signal sent by the first node.

[0263] There is an association relationship between the characteristics of the synchronization signal and the configuration information of the phase tracking reference signal.

[0264] In some embodiments, the characteristics of the synchronization signal include at least one of the following:

[0265] The time domain resource information of the synchronization signal, the frequency domain resource information of the synchronization signal, the sequence corresponding to the synchronization signal, and the carrier frequency corresponding to the synchronization signal.

[0266] In some embodiments, the configuration information of the phase tracking reference signal includes at least one of the following: whether to send the phase tracking reference signal, a way of triggering the sending of the phase tracking reference signal, a time domain position of the phase tracking reference signal, a frequency domain position of the phase tracking reference signal, a transmission power of the phase tracking reference signal, a sequence corresponding to the phase tracking reference signal, and a transmission mode of the phase tracking reference signal.

[0267] In some embodiments, the transmission mode of the phase tracking reference signal includes one of the following: sending the phase tracking reference signal on a physical downlink shared channel carrying system information, sending the phase tracking reference signal on a physical uplink shared channel carrying access-related information, sending the phase tracking reference signal on a physical downlink shared channel, and sending the phase tracking reference signal on a physical uplink shared channel.

[0268] In some embodiments, the phase tracking reference signal is transmitted on a physical downlink shared channel carrying system information, or the phase tracking reference signal is transmitted on a physical uplink shared channel carrying access related information, or the phase tracking reference signal is transmitted on the physical downlink shared channel, or the phase tracking reference signal is transmitted on the physical uplink shared channel, in a case that one of the following is met:

[0269] The number of time domain symbols occupied by the synchronization signal in the time domain is a first number of a first number and a second number; the first number is less than or equal to the second number.

[0270] The number of frequency domain units occupied by the synchronization signal in the frequency domain is a third number of a third number and a fourth number; the third number is less than or equal to the fourth number.

[0271] The sequence corresponding to the synchronization signal is a first sequence.

[0272] The carrier frequency corresponding to the synchronization signal is greater than or equal to a carrier frequency threshold.

[0273] It should be noted that the explanation of the embodiment of the communication method shown in FIG. 10 can refer to the explanation of the embodiment of the communication method shown in FIG. 9, which will not be repeated here.

[0274] The embodiments of the present disclosure can divide the functional modules of the communication node according to the above-mentioned method embodiments, for example, each functional module can be divided according to each function, or two or more functions can be integrated into one functional module. The integrated module can be realized in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is illustrative, and is only a logical functional division. In actual implementation, another division mode can be used. The following will be described taking the division of each functional module according to each function as an example.

[0275] FIG. 11 is a structural schematic diagram of a communication node provided by an embodiment of the present disclosure. The communication node can execute the communication method provided by the above-mentioned method embodiments. As shown in FIG. 11, the communication node includes a sending module 1101.

[0276] The sending module 1101 is configured to send a synchronization signal.

[0277] The sending module 1101 is further configured to send a physical broadcast channel.

[0278] FIG. 12 is a structural schematic diagram of another communication node provided by an embodiment of the present disclosure. The communication node can execute the communication method provided by the above-mentioned method embodiments. As shown in FIG. 12, the communication node includes a receiving module 1201.

[0279] The receiving module 1201 is configured to receive a synchronization signal sent by the first node.

[0280] The receiving module 1201 is further configured to receive a physical broadcast channel sent by the first node.

[0281] FIG. 13 is a structural schematic diagram of another communication node provided by an embodiment of the present disclosure, which can execute the communication method provided by the method embodiments described above. As shown in FIG. 13, the communication node comprises a sending module 1301.

[0282] The sending module 1301 is configured to send a synchronization signal.

[0283] The sending module 1301 is further configured to send a phase tracking reference signal.

[0284] FIG. 14 is a structural schematic diagram of another communication node provided by an embodiment of the present disclosure, which can execute the communication method provided by the method embodiments described above. As shown in FIG. 14, the communication node comprises a receiving module 1401.

[0285] The receiving module 1401 is configured to receive a synchronization signal sent by the first node.

[0286] The receiving module 1401 is further configured to receive a physical broadcast channel sent by the first node.

[0287] In the case where the functions of the integrated modules described above are implemented in the form of hardware, the present embodiment provides another possible structure of the communication node involved in the above embodiments. As shown in FIG. 15, the communication node comprises a processor 1502 and a bus 1504. In some embodiments, the communication node can further comprise a memory 1501; in some embodiments, the communication node can further comprise a communication interface 1503.

[0288] The processor 1502 can be various exemplary logical blocks, modules and circuits described in combination with the embodiments of the present disclosure. The processor 1502 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. The processor 1502 can implement or execute various exemplary logical blocks, modules and circuits described in combination with the embodiments of the present disclosure. The processor 1502 can also be a combination of implementing computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processor (DSP) and a microprocessor, etc.

[0289] The communication interface 1503 is configured to connect with other devices through a communication network. The communication network can be an Ethernet, a wireless access network, a wireless local area network (WLAN), or the like.

[0290] The memory 1501 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium, or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this.

[0291] As a possible implementation, the memory 1501 can exist independently of the processor 1502, and the memory 1501 can be connected to the processor 1502 through the bus 1504, for storing instructions or program codes. When the processor 1502 invokes and executes the instructions or program codes stored in the memory 1501, the method provided by the embodiments of the present disclosure can be implemented.

[0292] In another possible implementation, the memory 1501 can also be integrated with the processor 1502.

[0293] The bus 1504 can be an extended industry standard architecture (EISA) bus or the like. The bus 1504 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 15, but it does not mean that there is only one bus or only one type of bus.

[0294] Some embodiments of the present disclosure provide a computer-readable storage medium (for example, a non-transitory computer-readable storage medium) having computer program instructions stored therein, and the computer program instructions, when executed on a computer, cause the computer to execute the method described in any of the above embodiments.

[0295] By way of example, the computer-readable storage media described above can include, but is not limited to, magnetic storage devices (e.g., hard disk, floppy disk, or magnetic tape), optical storage devices (e.g., compact disk (CD), digital versatile disk (DVD), etc.), smart cards, and flash memory devices (e.g., EPROM, card, stick, or key drive). The various computer-readable storage media described above can represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" shall accordingly be taken to include a single medium or multiple media that store one or more sets of instructions that when executed by a machine cause the machine to perform any one of the methodologies described herein.

[0296] The embodiments of the present disclosure provide a computer program product containing instructions, which, when the computer program product is run on a computer, cause the computer to execute the method described in any one of the above embodiments.

[0297] The above description is merely illustrative of the disclosure and does not limit the scope of the disclosure. Any variations or replacements within the technical scope of the disclosure should be encompassed in the scope of the disclosure. Therefore, the disclosure should be limited only by the scope of the claims.

Claims

1. A communication method applied to a first node, the method comprising: sending a synchronization signal; sending a physical broadcast channel, wherein a feature of the synchronization signal and a feature of the physical broadcast channel are associated. 2.The method of claim 1, wherein the feature of the synchronization signal comprises at least one of: time domain resource information of the synchronization signal, frequency domain resource information of the synchronization signal, a sequence corresponding to the synchronization signal, a carrier frequency corresponding to the synchronization signal; the feature of the physical broadcast channel comprises at least one of: time domain resource information of the physical broadcast channel, frequency domain resource information of the physical broadcast channel, a coding mode of the physical broadcast channel, a modulation mode of the physical broadcast channel, constellation mapping description information of the physical broadcast channel, demodulation reference signal configuration information of the physical broadcast channel, a sending period of the physical broadcast channel, a number of physical broadcast channels in one sending period, broadcast information content of the physical broadcast channel; 3. The method of claim 2, wherein, the time domain resource information of the synchronization signal comprises a number of time domain symbols occupied by the synchronization signal in time domain; the number of time domain symbols occupied by the synchronization signal in time domain is a first number or a second number; the first number is less than or equal to the second number; the first number and the second number are positive integers; the time domain resource information of the synchronization signal and the feature of the physical broadcast channel are associated in at least one of the following manners: if the number of time domain symbols occupied by the synchronization signal in time domain is the first number, a number of time domain symbols occupied by the physical broadcast channel in time domain is a third number; if the number of time domain symbols occupied by the synchronization signal in time domain is the second number, the number of time domain symbols occupied by the physical broadcast channel in time domain is a fourth number; the third number is less than or equal to the fourth number; the third number and the fourth number are positive integers; if the number of time domain symbols occupied by the synchronization signal in time domain is the first number, a number of frequency domain units occupied by the physical broadcast channel in frequency domain is a fifth number; if the number of time domain symbols occupied by the synchronization signal in time domain is the second number, a number of frequency domain units occupied by the physical broadcast channel in frequency domain is a sixth number; the fifth number is greater than or equal to the sixth number; the fifth number and the sixth number are positive integers; if the number of time domain symbols occupied by the synchronization signal in time domain is the first number, an encoding code rate of content carried by the physical broadcast channel is a first code rate; if the number of time domain symbols occupied by the synchronization signal in time domain is the second number, an encoding code rate of content carried by the physical broadcast channel is a second code rate; the first code rate is greater than or equal to the second code rate; if the number of time domain symbols occupied by the synchronization signal in time domain is the first number, an encoding mode of content carried by the physical broadcast channel is a first encoding mode; if the number of time domain symbols occupied by the synchronization signal in time domain is the second number, an encoding mode of content carried by the physical broadcast channel is a second encoding mode. If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the modulation mode of the physical broadcast channel is a first modulation mode; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the modulation mode of the physical broadcast channel is a second modulation mode; the number of bits carried by a symbol corresponding to the first modulation mode is greater than or equal to the number of bits carried by a symbol corresponding to the second modulation mode; If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the constellation mapping mode of the physical broadcast channel is a first constellation mapping mode; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the constellation mapping mode of the physical broadcast channel is a second constellation mapping mode; If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the demodulation reference signal configuration information of the physical broadcast channel is first demodulation reference signal configuration information; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the demodulation reference signal configuration information of the physical broadcast channel is second demodulation reference signal configuration information; The frequency domain resource occupied by the demodulation reference signal configured by the first demodulation reference signal configuration information in the time domain symbol is greater than or equal to the frequency domain resource occupied by the demodulation reference signal configured by the second demodulation reference signal configuration information in the time domain symbol; If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the period interval corresponding to the transmission period of the physical broadcast channel is a first period interval; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the period interval corresponding to the transmission period of the physical broadcast channel is a second period interval; the first period interval is less than or equal to the second period interval; If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the number of physical broadcast channels in one of the transmission periods corresponding to the physical broadcast channel is a seventh number; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the number of physical broadcast channels in one of the transmission periods corresponding to the physical broadcast channel is an eighth number; the seventh number and the eighth number are positive integers.

4. The method of claim 2 or 3, wherein, The frequency domain resource information of the synchronization signal includes the number of frequency domain units occupied by the synchronization signal in the frequency domain; the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number or a second number; the first number is less than or equal to the second number; the first number and the second number are positive integers; the frequency domain resource information of the synchronization signal and the characteristics of the physical broadcast channel have at least one of the following association relationships: If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a third number; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a fourth number; the third number is greater than or equal to the fourth number; the third number and the fourth number are positive integers; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a fifth number; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a sixth number; the fifth number is less than or equal to the sixth number; the fifth number and the sixth number are positive integers; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the encoding code rate of the content carried by the physical broadcast channel is a first code rate; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the encoding code rate of the content carried by the physical broadcast channel is a second code rate; The first code rate is less than or equal to the second code rate; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the encoding mode of the content carried by the physical broadcast channel is a first encoding mode; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the encoding mode of the content carried by the physical broadcast channel is a second encoding mode; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the modulation mode of the physical broadcast channel is a first modulation mode; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the modulation mode of the physical broadcast channel is a second modulation mode; the number of bits carried by a symbol corresponding to the first modulation mode is less than or equal to the number of bits carried by a symbol corresponding to the second modulation mode; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the constellation mapping mode of the physical broadcast channel is a first constellation mapping mode; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the constellation mapping mode of the physical broadcast channel is a second constellation mapping mode; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the demodulation reference signal configuration information of the physical broadcast channel is first demodulation reference signal configuration information; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the demodulation reference signal configuration information of the physical broadcast channel is second demodulation reference signal configuration information; The frequency domain resource occupied by the demodulation reference signal configured by the first demodulation reference signal configuration information in the time domain symbol is less than or equal to the frequency domain resource occupied by the demodulation reference signal configured by the second demodulation reference signal configuration information in the time domain symbol; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the transmission period of the physical broadcast channel corresponds to a first period interval; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the transmission period of the physical broadcast channel corresponds to a second period interval; the first period interval is greater than or equal to the second period interval; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the number of physical broadcast channels in one of the transmission periods corresponding to the physical broadcast channel is a seventh number; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the number of physical broadcast channels in one of the transmission periods corresponding to the physical broadcast channel is an eighth number; the seventh number and the eighth number are positive integers.

5. The method of any one of claims 2-4, wherein, The sequence corresponding to the synchronization signal is a first sequence or a second sequence; there is an association relationship between the sequence corresponding to the synchronization signal and the characteristics of the physical broadcast channel as follows: If the sequence corresponding to the synchronization signal is a first sequence, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a first number; if the sequence corresponding to the synchronization signal is a second sequence, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a second number; the first number is less than or equal to the second number; the first number and the second number are positive integers; If the sequence corresponding to the synchronization signal is a first sequence, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a third number; if the sequence corresponding to the synchronization signal is a second sequence, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a fourth number; the third number is less than or equal to the fourth number; the third number and the fourth number are positive integers; If the sequence corresponding to the synchronization signal is a first sequence, the coding rate of the physical broadcast channel is a first coding rate; if the sequence corresponding to the synchronization signal is a second sequence, the coding rate of the physical broadcast channel is a second coding rate; the first coding rate is less than or equal to the second coding rate; If the sequence corresponding to the synchronization signal is a first sequence, the modulation mode of the physical broadcast channel is a first modulation mode; if the sequence corresponding to the synchronization signal is a second sequence, the modulation mode of the physical broadcast channel is a second modulation mode; the number of bits carried by a symbol corresponding to the first modulation mode is less than or equal to the number of bits carried by a symbol corresponding to the second modulation mode; If the sequence corresponding to the synchronization signal is a first sequence, the constellation mapping mode of the physical broadcast channel is a first constellation mapping mode; if the sequence corresponding to the synchronization signal is a second sequence, the constellation mapping mode of the physical broadcast channel is a second constellation mapping mode; If the sequence corresponding to the synchronization signal is a first sequence, the demodulation reference signal configuration information of the physical broadcast channel is first demodulation reference signal configuration information; if the sequence corresponding to the synchronization signal is a second sequence, the demodulation reference signal configuration information of the physical broadcast channel is second demodulation reference signal configuration information; The frequency domain resource occupied by the demodulation reference signal configured by the first demodulation reference signal configuration information on a time domain symbol is greater than or equal to the frequency domain resource occupied by the demodulation reference signal configured by the second demodulation reference signal configuration information on a time domain symbol. If the sequence corresponding to the synchronization signal is a first sequence, a period interval corresponding to a transmission period of the physical broadcast channel is a first period interval; if the sequence corresponding to the synchronization signal is a second sequence, the period interval corresponding to the transmission period of the physical broadcast channel is a second period interval; the first period interval is less than or equal to the second period interval. If the sequence corresponding to the synchronization signal is a first sequence, the number of physical broadcast channels in one of the transmission periods corresponding to the physical broadcast channel is a fifth number; if the sequence corresponding to the synchronization signal is a second sequence, the number of physical broadcast channels in one of the transmission periods corresponding to the physical broadcast channel is a sixth number; the fifth number is less than or equal to the sixth number; the fifth number and the sixth number are positive integers.

6. The method of claim 5, wherein, The first sequence satisfies at least one of the following: The first sequence belongs to a first sequence set; The first sequence is obtained based on a first formula: The first sequence is obtained based on a plurality of sequences; The second sequence satisfies at least one of the following: The second sequence belongs to a second sequence set; The second sequence is obtained based on a second formula: The second sequence is obtained based on a plurality of sequences.

7. The method of claim 3 or 4, wherein, The first constellation mapping manner and the second constellation mapping manner satisfy at least one of the following: There is at least one constellation point in the first constellation mapping manner whose position is different from that in the second constellation mapping manner; There are M constellation points in the constellation corresponding to the first constellation mapping manner and the constellation corresponding to the second constellation mapping manner, which have the same positions; there is at least one constellation point in the M constellation points whose bit set is different, and M is a positive integer.

8. The method of any one of claims 2-7, wherein, The following association exists between the carrier frequency corresponding to the synchronization signal and the broadcast information content of the physical broadcast channel: If the carrier frequency corresponding to the synchronization signal satisfies a carrier frequency constraint condition, the configuration information of the phase tracking reference signal is included in the broadcast information content of the physical broadcast channel; the carrier frequency constraint condition is used to indicate that the carrier frequency corresponding to the synchronization signal is greater than or equal to a carrier frequency threshold.

9. The method of claim 8, wherein, The configuration information of the phase tracking reference signal includes at least one of the following: whether to transmit the phase tracking reference signal, a manner of triggering transmission of the phase tracking reference signal, a time domain position of the phase tracking reference signal, a frequency domain position of the phase tracking reference signal, a transmission power of the phase tracking reference signal, a sequence corresponding to the phase tracking reference signal, and a transmission manner of the phase tracking reference signal.

10. The method of claim 9, wherein, The sending mode of the phase tracking reference signal comprises one of the following: sending the phase tracking reference signal on a physical downlink shared channel carrying system information, sending the phase tracking reference signal on a physical uplink shared channel carrying access related information, sending the phase tracking reference signal on a physical downlink shared channel, and sending the phase tracking reference signal on a physical uplink shared channel.

11. The method of claim 10, wherein, The phase tracking reference signal is sent on a physical downlink shared channel carrying system information, or on a physical uplink shared channel carrying access related information, or on a physical downlink shared channel, or on a physical uplink shared channel, in the case that one of the following is met: The number of time domain symbols occupied by the synchronization signal in the time domain is the first number of the first number and the second number; the first number is less than or equal to the second number; The number of frequency domain units occupied by the synchronization signal in the frequency domain is the third number of the third number and the fourth number; the third number is less than or equal to the fourth number; The sequence corresponding to the synchronization signal is a first sequence; The carrier frequency corresponding to the synchronization signal is greater than or equal to the carrier frequency threshold.

12. The method of any one of claims 2-11, wherein, The broadcast information content of the physical broadcast channel comprises at least one of the following: The encoding information of the physical control channel, the modulation information of the physical control channel, the constellation mapping description information of the physical data shared channel, the encoding information of the physical data shared channel, the waveform information of the physical uplink data shared channel, the information related to one or more functions, the information related to one or more models, and the configuration information of the phase tracking reference signal related to the physical data channel.

13. A communication method applied to a second node, the method comprising: receiving a synchronization signal sent by a first node; receiving a physical broadcast channel sent by the first node; There is an association relationship between the characteristics of the synchronization signal and the characteristics of the physical broadcast channel.

14. The method of claim 13, wherein The characteristics of the synchronization signal comprise at least one of the following: time domain resource information of the synchronization signal, frequency domain resource information of the synchronization signal, a sequence corresponding to the synchronization signal, and a carrier frequency corresponding to the synchronization signal; The characteristics of the physical broadcast channel comprise at least one of the following: time domain resource information of the physical broadcast channel, frequency domain resource information of the physical broadcast channel, encoding mode of the physical broadcast channel, modulation mode of the physical broadcast channel, constellation mapping description information of the physical broadcast channel, demodulation reference signal configuration information of the physical broadcast channel, transmission period of the physical broadcast channel, number of physical broadcast channels in one transmission period, broadcast information content of the physical broadcast channel, and information related to a phase tracking reference signal.

15. The method of claim 14, wherein, The time domain resource information of the synchronization signal includes a number of time domain symbols occupied by the synchronization signal in the time domain; the number of time domain symbols occupied by the synchronization signal in the time domain is a first number or a second number; the first number is less than or equal to the second number; the first number and the second number are positive integers; and there is an association between the time domain resource information of the synchronization signal and the feature of the physical broadcast channel as follows: If the number of time domain symbols occupied by the synchronization signal in the time domain is the first number, a number of time domain symbols occupied by the physical broadcast channel in the time domain is a third number; if the number of time domain symbols occupied by the synchronization signal in the time domain is the second number, a number of time domain symbols occupied by the physical broadcast channel in the time domain is a fourth number; the third number is less than or equal to the fourth number; and the third number and the fourth number are positive integers; If the number of time domain symbols occupied by the synchronization signal in the time domain is the first number, a number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a fifth number; if the number of time domain symbols occupied by the synchronization signal in the time domain is the second number, a number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a sixth number; the fifth number is greater than or equal to the sixth number; and the fifth number and the sixth number are positive integers; If the number of time domain symbols occupied by the synchronization signal in the time domain is the first number, an encoding code rate of content carried by the physical broadcast channel is a first code rate; If the number of time domain symbols occupied by the synchronization signal in the time domain is the second number, an encoding code rate of content carried by the physical broadcast channel is a second code rate; The first code rate is greater than or equal to the second code rate; If the number of time domain symbols occupied by the synchronization signal in the time domain is the first number, an encoding mode of content carried by the physical broadcast channel is a first encoding mode; if the number of time domain symbols occupied by the synchronization signal in the time domain is the second number, an encoding mode of content carried by the physical broadcast channel is a second encoding mode; If the number of time domain symbols occupied by the synchronization signal in the time domain is the first number, a modulation mode of the physical broadcast channel is a first modulation mode; if the number of time domain symbols occupied by the synchronization signal in the time domain is the second number, a modulation mode of the physical broadcast channel is a second modulation mode; a number of bits carried by a symbol corresponding to the first modulation mode is greater than or equal to a number of bits carried by a symbol corresponding to the second modulation mode; If the number of time domain symbols occupied by the synchronization signal in the time domain is the first number, a constellation mapping mode of the physical broadcast channel is a first constellation mapping mode; if the number of time domain symbols occupied by the synchronization signal in the time domain is the second number, a constellation mapping mode of the physical broadcast channel is a second constellation mapping mode. The first demodulation reference signal configuration information is configured to occupy a frequency domain resource on a time domain symbol, and the frequency domain resource is greater than or equal to a frequency domain resource occupied by the second demodulation reference signal configuration information on a time domain symbol; If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the transmission period of the physical broadcast channel corresponds to a first cycle interval; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the transmission period of the physical broadcast channel corresponds to a second cycle interval; the first cycle interval is less than or equal to the second cycle interval; If the number of time domain symbols occupied by the synchronization signal in the time domain is a first number, the number of physical broadcast channels in one of the transmission periods corresponding to the physical broadcast channel is a seventh number; if the number of time domain symbols occupied by the synchronization signal in the time domain is a second number, the number of physical broadcast channels in one of the transmission periods corresponding to the physical broadcast channel is an eighth number. The frequency domain resource information of the synchronization signal includes the number of frequency domain units occupied by the synchronization signal in the frequency domain; the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number or a second number; the first number is less than or equal to the second number; the first number and the second number are positive integers; there is an association between the frequency domain resource information of the synchronization signal and the characteristics of the physical broadcast channel:

16. The method of claim 14 or 15, wherein, If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a third number; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a fourth number; the third number is greater than or equal to the fourth number; the third number and the fourth number are positive integers; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a fifth number; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a sixth number; the fifth number is less than or equal to the sixth number; the fifth number and the sixth number are positive integers; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the coding rate of the content carried by the physical broadcast channel is a first coding rate; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the coding rate of the content carried by the physical broadcast channel is a second coding rate; ​ The first code rate is less than or equal to the second code rate; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the encoding mode of the content carried by the physical broadcast channel is a first encoding mode; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the encoding mode of the content carried by the physical broadcast channel is a second encoding mode; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the modulation mode of the physical broadcast channel is a first modulation mode; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the modulation mode of the physical broadcast channel is a second modulation mode; the number of bits carried by a symbol corresponding to the first modulation mode is less than or equal to the number of bits carried by a symbol corresponding to the second modulation mode; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the constellation mapping mode of the physical broadcast channel is a first constellation mapping mode; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the constellation mapping mode of the physical broadcast channel is a second constellation mapping mode; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the demodulation reference signal configuration information of the physical broadcast channel is first demodulation reference signal configuration information; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the demodulation reference signal configuration information of the physical broadcast channel is second demodulation reference signal configuration information; The frequency domain resources occupied by the demodulation reference signal configured by the first demodulation reference signal configuration information in the time domain symbol are less than or equal to the frequency domain resources occupied by the demodulation reference signal configured by the second demodulation reference signal configuration information in the time domain symbol; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the period interval corresponding to the transmission period of the physical broadcast channel is a first period interval; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the period interval corresponding to the transmission period of the physical broadcast channel is a second period interval; the first period interval is greater than or equal to the second period interval; If the number of frequency domain units occupied by the synchronization signal in the frequency domain is a first number, the number of physical broadcast channels in one of the transmission periods corresponding to the physical broadcast channel is a seventh number; if the number of frequency domain units occupied by the synchronization signal in the frequency domain is a second number, the number of physical broadcast channels in one of the transmission periods corresponding to the physical broadcast channel is an eighth number.

17. The method of any one of claims 14-16, wherein, The sequence corresponding to the synchronization signal is a first sequence or a second sequence; there is an association relationship between the sequence corresponding to the synchronization signal and the characteristics of the physical broadcast channel at least one of the following: If the sequence corresponding to the synchronization signal is a first sequence, a number of time domain symbols occupied by the physical broadcast channel in the time domain is a first number; if the sequence corresponding to the synchronization signal is a second sequence, the number of time domain symbols occupied by the physical broadcast channel in the time domain is a second number; the first number is less than or equal to the second number; the first number and the second number are positive integers; If the sequence corresponding to the synchronization signal is a first sequence, a number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a third number; if the sequence corresponding to the synchronization signal is a second sequence, the number of frequency domain units occupied by the physical broadcast channel in the frequency domain is a fourth number; the third number is less than or equal to the fourth number; the third number and the fourth number are positive integers; If the sequence corresponding to the synchronization signal is a first sequence, a coding rate of the physical broadcast channel is a first coding rate; if the sequence corresponding to the synchronization signal is a second sequence, the coding rate of the physical broadcast channel is a second coding rate; the first coding rate is less than or equal to the second coding rate; If the sequence corresponding to the synchronization signal is a first sequence, a modulation mode of the physical broadcast channel is a first modulation mode; if the sequence corresponding to the synchronization signal is a second sequence, the modulation mode of the physical broadcast channel is a second modulation mode; a number of bits carried by a symbol corresponding to the first modulation mode is less than or equal to a number of bits carried by a symbol corresponding to the second modulation mode; If the sequence corresponding to the synchronization signal is a first sequence, a constellation mapping mode of the physical broadcast channel is a first constellation mapping mode; if the sequence corresponding to the synchronization signal is a second sequence, the constellation mapping mode of the physical broadcast channel is a second constellation mapping mode; If the sequence corresponding to the synchronization signal is a first sequence, demodulation reference signal configuration information of the physical broadcast channel is first demodulation reference signal configuration information; if the sequence corresponding to the synchronization signal is a second sequence, the demodulation reference signal configuration information of the physical broadcast channel is second demodulation reference signal configuration information; frequency domain resources occupied by a demodulation reference signal configured by the first demodulation reference signal configuration information in a time domain symbol are greater than or equal to frequency domain resources occupied by a demodulation reference signal configured by the second demodulation reference signal configuration information in a time domain symbol; If the sequence corresponding to the synchronization signal is a first sequence, a period interval corresponding to a transmission period of the physical broadcast channel is a first period interval; if the sequence corresponding to the synchronization signal is a second sequence, the period interval corresponding to the transmission period of the physical broadcast channel is a second period interval; the first period interval is less than or equal to the second period interval; If the sequence corresponding to the synchronization signal is a first sequence, a number of physical broadcast channels in a transmission period corresponding to the physical broadcast channel is a fifth number; if the sequence corresponding to the synchronization signal is a second sequence, the number of physical broadcast channels in a transmission period corresponding to the physical broadcast channel is a sixth number; the fifth number is less than or equal to the sixth number; the fifth number and the sixth number are positive integers.

18. The method of claim 17, wherein, the first sequence satisfies at least one of the following: the first sequence belongs to a first sequence set; the first sequence is obtained based on a first formula: the first sequence is obtained based on a plurality of sequences; the second sequence satisfies at least one of the following: the second sequence belongs to a second sequence set; the second sequence is obtained based on a second formula: the second sequence is obtained based on a plurality of sequences.

19. The method of claim 15 or 16, wherein, the first constellation mapping manner and the second constellation mapping manner satisfy at least one of the following: there is at least one constellation point in the first constellation mapping manner whose position is different from that in the second constellation mapping manner; there are M constellation points in the first constellation mapping manner whose positions are the same as those in the second constellation mapping manner; there is at least one constellation point among the M constellation points whose corresponding bit set is different, and M is a positive integer.

20. The method of any one of claims 14-19, wherein, the following association exists between a carrier frequency corresponding to the synchronization signal and broadcast information content of the physical broadcast channel: if the carrier frequency corresponding to the synchronization signal satisfies a carrier frequency constraint condition, the configuration information of the phase tracking reference signal is included in the broadcast information content of the physical broadcast channel; the carrier frequency constraint condition is used to indicate that the carrier frequency corresponding to the synchronization signal is greater than or equal to a carrier frequency threshold.

21. The method of claim 20, wherein, the configuration information of the phase tracking reference signal includes at least one of the following: whether to send the phase tracking reference signal, a manner of triggering sending the phase tracking reference signal, a time domain position of the phase tracking reference signal, a frequency domain position of the phase tracking reference signal, a transmission power of the phase tracking reference signal, a sequence corresponding to the phase tracking reference signal, and a transmission manner of the phase tracking reference signal.

22. The method of claim 21, wherein, the transmission manner of the phase tracking reference signal includes one of the following: sending the phase tracking reference signal on a physical downlink shared channel carrying system information, sending the phase tracking reference signal on a physical uplink shared channel carrying access related information, sending the phase tracking reference signal on a physical downlink shared channel, and sending the phase tracking reference signal on a physical uplink shared channel.

23. The method of claim 22, wherein, in the case of one of the following, the phase tracking reference signal is sent on a physical downlink shared channel carrying system information, or on a physical uplink shared channel carrying access related information, or on a physical downlink shared channel, or on a physical uplink shared channel: a number of time domain symbols occupied by the synchronization signal in the time domain is a first number among a first number and a second number; the first number is less than or equal to the second number; a number of frequency domain units occupied by the synchronization signal in the frequency domain is a third number among a third number and a fourth number; the third number is less than or equal to the fourth number; the sequence corresponding to the synchronization signal is a first sequence; the carrier frequency corresponding to the synchronization signal is greater than or equal to the carrier frequency threshold.

24. The method of any one of claims 14-23, wherein, the broadcast information content of the physical broadcast channel includes at least one of the following: The encoding information of the physical control channel, the modulation information of the physical control channel, the constellation mapping description information of the physical data shared channel, the encoding information of the physical data shared channel, the waveform information of the physical uplink data shared channel, the information related to one or more functions, the information related to one or more models, the configuration information of the phase tracking reference signal related to the physical data channel. 25.A communication method applied to a first node, the method comprising: transmitting a synchronization signal; transmitting a phase tracking reference signal; there is an association relationship between the characteristics of the synchronization signal and the configuration information of the phase tracking reference signal. 26.According to the method of claim 25, wherein The characteristics of the synchronization signal include at least one of the following: time domain resource information of the synchronization signal, frequency domain resource information of the synchronization signal, a sequence corresponding to the synchronization signal, a carrier frequency corresponding to the synchronization signal; The configuration information of the phase tracking reference signal includes at least one of the following: whether to transmit the phase tracking reference signal, the way to trigger the transmission of the phase tracking reference signal, the time domain position of the phase tracking reference signal, the frequency domain position of the phase tracking reference signal, the transmission power of the phase tracking reference signal, the sequence corresponding to the phase tracking reference signal, the transmission mode of the phase tracking reference signal.

27. The method of claim 26, wherein, The transmission mode of the phase tracking reference signal includes one of the following: transmitting the phase tracking reference signal on a physical downlink shared channel carrying system information, transmitting the phase tracking reference signal on a physical uplink shared channel carrying access related information, transmitting the phase tracking reference signal on a physical downlink shared channel, transmitting the phase tracking reference signal on a physical uplink shared channel.

28. The method of claim 27, wherein, In the case of satisfying one of the following conditions, the phase tracking reference signal is transmitted on a physical downlink shared channel carrying system information, or on a physical uplink shared channel carrying access related information, or on a physical downlink shared channel, or on a physical uplink shared channel: The number of time domain symbols occupied by the synchronization signal in the time domain is the first number and the second number among the first number and the second number;The first number is less than or equal to the second number; The number of frequency domain units occupied by the synchronization signal in the frequency domain is the third number and the fourth number among the third number and the fourth number;The third number is less than or equal to the fourth number; The sequence corresponding to the synchronization signal is the first sequence; The carrier frequency corresponding to the synchronization signal is greater than or equal to the carrier frequency threshold. 29.A communication method applied to a second node, the method comprising: receiving a synchronization signal transmitted by a first node; receiving a phase tracking reference signal transmitted by the first node; there is an association relationship between the characteristics of the synchronization signal and the configuration information of the phase tracking reference signal. 30.According to the method of claim 29, wherein The features of the synchronization signal include at least one of the following: time domain resource information of the synchronization signal, frequency domain resource information of the synchronization signal, a sequence corresponding to the synchronization signal, a carrier frequency corresponding to the synchronization signal; The configuration information of the phase tracking reference signal includes at least one of the following: whether the phase tracking reference signal is transmitted, a manner of triggering transmission of the phase tracking reference signal, a time domain position of the phase tracking reference signal, a frequency domain position of the phase tracking reference signal, a transmission power of the phase tracking reference signal, a sequence corresponding to the phase tracking reference signal, and a transmission manner of the phase tracking reference signal.

31. The method of claim 30, wherein, The transmission manner of the phase tracking reference signal includes one of the following: transmitting the phase tracking reference signal on a physical downlink shared channel carrying system information, transmitting the phase tracking reference signal on a physical uplink shared channel carrying access-related information, transmitting the phase tracking reference signal on a physical downlink shared channel, and transmitting the phase tracking reference signal on a physical uplink shared channel.

32. The method of claim 31, wherein, The phase tracking reference signal is transmitted on a physical downlink shared channel carrying system information, or on a physical uplink shared channel carrying access-related information, or on a physical downlink shared channel, or on a physical uplink shared channel, in the case that one of the following is met: The number of time domain symbols occupied by the synchronization signal in the time domain is a first number and a second number, and the first number is less than or equal to the second number; The number of frequency domain units occupied by the synchronization signal in the frequency domain is a third number and a fourth number, and the third number is less than or equal to the fourth number; The sequence corresponding to the synchronization signal is a first sequence; The carrier frequency corresponding to the synchronization signal is greater than or equal to a carrier frequency threshold.

33. A communication node, comprising: A memory and a processor; The memory and the processor are coupled; The memory is configured to store instructions executable by the processor; The processor executes the instructions to perform the method according to any one of claims 1-12, or perform the method according to any one of claims 13-24, or perform the method according to any one of claims 25-28, or perform the method according to any one of claims 29-32.

34. A computer readable storage medium, wherein, The computer readable storage medium stores computer instructions, when the computer instructions run on a computer, cause the computer to execute the instructions to perform the method according to any one of claims 1-12, or perform the method according to any one of claims 13-24, or perform the method according to any one of claims 25-28, or perform the method according to any one of claims 29-32.

35. A computer program product, wherein, The computer program product comprises computer program instructions, which, when executed by a processor, implement the method according to any one of claims 1-12, or implement the method according to any one of claims 13-24, or implement the method according to any one of claims 25-28, or implement the method according to any one of claims 29-32.

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