WO2023272444A1

WO2023272444A1 - Communication method and communication apparatus therefor

Info

Publication number: WO2023272444A1
Application number: PCT/CN2021/102793
Authority: WO
Inventors: 刘航; 王键
Original assignee: 华为技术有限公司
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2023-01-05
Also published as: CN117581609A

Abstract

Provided in the present application are a communication method and a communication apparatus, which can be applied to the field of smart terminals, such as smart homes, smart transportation, smart manufacturing and smart wear. The method comprises: generating first configuration information, wherein the first configuration information is used for indicating a first link, the first link comprises a link in which a first node communicates with a second node, the first configuration information comprises communication parameters and/or communication resource information of the first link, the communication parameters comprise one or more of an access address, a timeout threshold value and a node attribute, and the communication resource information comprises one or more of connection event information and frequency domain information; and sending the first configuration information to the first node and/or the second node. By means of the method, information interaction between slave nodes is realized, such that data synchronization is maintained between the slave nodes, thereby improving the information transmission flexibility, and also greatly improving the user experience.

Description

A communication method and communication device thereof

technical field

The present application relates to the field of communication, in particular to the field of short-distance communication, and in particular to a communication method and a communication device thereof.

Background technique

Bluetooth low energy (bluetooth low energy, BLE or LE) technology is a short-range wireless communication technology. Compared with the classic Bluetooth (classic Bluetooth) technology, it has the characteristics of low power consumption. BLE usually consists of a controller, a host and an application (or application). Device-to-device communication is implemented through the link layer and physical layer included in the controller. Among them, the link layer and the physical layer are mainly responsible for broadcasting, scanning, establishing and maintaining connection functions. Before devices can communicate with each other, a connection needs to be established between devices.

In existing systems such as BLE, the nodes in the communication system can be divided into a master node (Master) and a slave node (Slave) logically and functionally. At present, communication interaction is common between master nodes and slave nodes, but with the development of technology and the improvement of user needs, the communication mechanism between slave nodes needs to be improved urgently.

Contents of the invention

The present application provides a communication method and a communication device thereof, which solve the problem of inability to communicate between slave nodes, and can ensure the service quality of link communication between slave nodes and improve user experience through management of slave node links.

In order to facilitate understanding, the scheme of this application is described by taking the first node and the second node as the communication parties of the link between the slave nodes, and taking the third node as the master node as an example.

In a first aspect, a communication method is provided, and the method may include: a third node generates first configuration information, the first configuration information is used to indicate a first link, and the first link includes information for the first node and the second The link on which the node communicates, the first configuration information includes communication parameters and/or communication resource information of the first link, the communication parameters include one or more of access address information, timeout threshold, or transmission attribute information, the communication The resource information includes one or more items of connection event information and frequency domain information for indicating a frequency hopping pattern; the third node sends the first configuration information to the first node and/or the second node.

Wherein, the timeout threshold may be used to judge the connection state of the first link, and the connection event information may be used to determine the time domain resource for communication between the first node and the second node.

In this scheme, the master node configures resources for the communication between the slave nodes, so that the slave nodes can communicate, which solves the problem that the slave nodes cannot communicate. At the same time, the configuration information can also include communication parameters, which can The communication between the slave nodes is managed to ensure the service quality of the link communication between the slave nodes, so that the data synchronization between the slave nodes is maintained, the flexibility of information transmission is improved, and the user experience is greatly improved.

With reference to the first aspect, in some implementation manners of the first aspect, the access address information is used to identify the first link.

With reference to the first aspect, in some implementation manners of the first aspect, the connection event information includes an interval between start times of adjacent connection events and/or an interval between start times of adjacent connection sub-events.

It should be understood that the slave nodes as both sides of the link communication between the slave nodes can arrange their own sending and receiving of data within the interval of a connection event and/or adjacent connection sub-events, and multiple interactions can also be performed within this interval.

With reference to the first aspect, in some implementations of the first aspect, the connection event information further includes the time length of the connection event, the time length for the first node to send data in the connection event, and the time length for the second node to send data in the connection event. The time length of the data, the number of connection sub-events, the time length of the connection sub-event, the time length for the first node to send data in the connection sub-event, or the time length for the second node to send data in the connection sub-event at least one.

Furthermore, the master node can indicate parameters such as the duration and number of connection events through the connection event information, and can also clearly indicate to the slave nodes the respective time lengths for sending and receiving data, so as to further improve the communication efficiency of the link between the slave nodes.

With reference to the first aspect, in some implementation manners of the first aspect, the frequency domain information includes channel occupancy mapping information and a frequency hopping step size.

The receiver, that is, the slave node, can determine the frequency hopping pattern for data transmission and reception according to the channel occupancy mapping information and the frequency hopping step size.

With reference to the first aspect, in some implementation manners of the first aspect, the transmission attribute information is used to indicate an order in which the first node and the second node send data on the first link.

The master node indicates the sending and receiving order of the slave nodes, either directly in the transmission attribute information, or by indicating the node attributes of the slave nodes on the link between the slave nodes, so that the slave nodes can determine their respective sending and receiving orders.

With reference to the first aspect, in some implementations of the first aspect, the transmission attribute information may include node attribute information, when the attribute of the first node is the master node on the first link and/or when the attribute of the second node is When the slave node is on the first link, on the first link, the sending of the data of the first node is prior to the sending of the data of the second node.

That is to say, two slave nodes can also be divided into master and slave on the link between the slave nodes. As the master node, the data is sent before the slave node.

With reference to the first aspect, in some implementation manners of the first aspect, the timeout threshold is used to indicate a valid duration of the first link.

It should be understood that the timeout threshold may be used by the slave node to judge the communication status of the link between the slave nodes, and to feed back to the master node in time. The timeout threshold may be a certain length of time, for example, a valid duration. It may also be the number of connection events corresponding to the connection event.

For example, if T1 does not receive the data packet of T2 in three consecutive connection events, it can be determined that the link between the slave nodes has timed out.

With reference to the first aspect, in some implementation manners of the first aspect, the third node may receive second indication information, where the second indication information is used to indicate that the first link connection times out.

The slave node uses the timeout threshold as the judgment condition to judge the communication status of the link between the slave nodes in real time. If there is a timeout, it can report to the master node in time, and the master node can reconfigure resources to ensure the communication efficiency of the link between the slave nodes.

With reference to the first aspect, in some implementation manners of the first aspect, the third node may receive third indication information, where the third indication information is used to indicate that the first link is established successfully.

When T1 receives the data packet sent by T2, or T2 receives the data packet sent by T1, it can report to the master node, indicating that the link between the slave nodes is established successfully.

With reference to the first aspect, in some implementation manners of the first aspect, before generating the first configuration information, the third node may receive first request information from the first node, where the first request information is used to request the third node to be The first node configures the first link with the second node, and the first request information includes identity information of the second node.

It should be understood that a slave node may store identity information of other slave nodes.

The slave node sends the request information to request configuration of communication resources with its expected communication peer, which can further improve the resource allocation efficiency of the master node and avoid possible waste of resources.

With reference to the first aspect, in some implementation manners of the first aspect, the communication resource of the first link and the communication resource carrying the first configuration information are orthogonal in time domain.

That is, the time-domain resource for interaction between the master node and the slave node is orthogonal to the time-domain resource for link communication between the slave nodes, which can avoid interference and improve communication quality.

In a second aspect, a communication method is provided, which may include: the first node receives first configuration information, the first configuration information is used to indicate the first link, and the first link includes the communication between the first node and the second node Communication links, the first configuration information includes communication parameters and/or communication resource information of the first link, the communication parameters include one or more of access address information, timeout threshold, or transmission attribute information, and communication resource information It includes connection event information, or one or more items of frequency domain information used to indicate a frequency hopping pattern; the first node sends a data packet to the second node through the first link.

With reference to the second aspect, in some implementation manners of the second aspect, the access address is used to identify the first link.

With reference to the second aspect, in some implementations of the second aspect, the connection event information includes the interval between the start times of adjacent connection events and/or the interval between the start times of adjacent connection sub-events. interval.

With reference to the second aspect, in some implementations of the second aspect, the connection event information further includes the time length of the connection event, the time length for the first node to send data in the connection event, and the time length for the second node to send data in the connection event. The time length of the data, the number of connection sub-events, the time length of the connection sub-event, the time length for the first node to send data in the connection sub-event, or the time length for the second node to send data in the connection sub-event one or more.

With reference to the second aspect, in some implementation manners of the second aspect, the frequency domain information includes channel occupancy mapping information and a frequency hopping step size.

With reference to the second aspect, in some implementation manners of the second aspect, the transmission attribute information is used to indicate an order in which the first node and the second node send data on the first link.

With reference to the second aspect, in some implementations of the second aspect, the transmission attribute information includes node attribute information, and when the attribute of the first node is the master node on the first link, the first node sends the data pack.

With reference to the second aspect, in some implementation manners of the second aspect, the timeout threshold is used to indicate a valid duration of the first link.

In conjunction with the second aspect, in some implementations of the second aspect, when the first node does not receive the data packet sent by the second node within the valid time period, it sends the second indication information to the third node, and the second indication information uses Indicates that the first link connection times out.

With reference to the second aspect, in some implementations of the second aspect, when the first node receives the data packet sent by the second node, it sends third indication information, and the third indication information is used to indicate that the first link is established successfully .

With reference to the second aspect, in some implementation manners of the second aspect, before receiving the first configuration information, the first node sends first request information, and the first request information is used to request configuration of the first node and the second node. For a link, the first request information includes identity information of the second node.

With reference to the second aspect, in some implementation manners of the second aspect, the communication resource of the first link and the communication resource carrying the first configuration information are orthogonal in time domain.

In a third aspect, a communication method is provided, and the method may include: the second node receives first configuration information, the first configuration information is used to indicate the first link, and the first link includes information for the first node and the second node Links for communication, the first configuration information includes communication parameters and/or communication resource information of the first link, the communication parameters include one or more of access address information, timeout threshold, or transmission attribute information, and communication resource information The information includes one or more items of connection event information and frequency domain information for indicating a frequency hopping pattern; the second node receives the data packet from the second node through the first link.

With reference to the third aspect, in some implementation manners of the third aspect, the access address information is used to identify the first link.

With reference to the third aspect, in some implementation manners of the third aspect, the connection event information includes an interval between start times of adjacent connection events and/or an interval between start times of adjacent connection sub-events.

With reference to the third aspect, in some implementations of the third aspect, the connection event information also includes the time length of the connection event, the time length used for the first node to send data in the connection event, and the time length used for the second node to send data in the connection event. The time length of the data, the number of connection sub-events, the time length of the connection sub-event, the time length for the first node to send data in the connection sub-event, or the time length for the second node to send data in the connection sub-event one or more.

With reference to the third aspect, in some implementation manners of the third aspect, the frequency domain information includes channel occupancy mapping information and a frequency hopping step size.

With reference to the third aspect, in some implementation manners of the third aspect, the transmission attribute information is used to indicate an order in which the first node and the second node send data on the first link.

With reference to the third aspect, in some implementations of the third aspect, the transmission attribute information includes node attribute information, and when the attribute of the second node is the master node on the first link, the second node sends the data pack.

With reference to the third aspect, in some implementation manners of the third aspect, the timeout threshold indicates a valid duration of the first link.

With reference to the third aspect, in some implementations of the third aspect, when the second node does not receive the data packet sent by the first node within the first time period, it sends the second indication information, and the second indication information is used to indicate The first link connection timed out.

With reference to the third aspect, in some implementation manners of the third aspect, the communication resource of the first link and the communication resource carrying the first configuration information are orthogonal in the time domain.

In the fourth aspect, a communication method is provided, which is applied to the first system, and the first system includes at least three nodes, wherein the multiple data transmission MD values corresponding to the at least three nodes include at least two MD values with different values , at least three nodes keep working.

According to a fifth aspect, a communication device is provided, and the communication device may include a transceiver unit and a processing unit, wherein the processing unit is used to generate first configuration information, and the first configuration information is used to indicate a first link, and the first link includes The link used for communication between the first node and the second node, the first configuration information includes communication parameters and/or communication resource information of the first link, and the communication parameters include access address information, timeout threshold, or transmission attribute information One or more items, the communication resource information includes one or more items of connection event information, frequency domain information used to indicate the frequency hopping pattern; the transceiver unit is used to send the first node to the first node and/or the second node configuration information.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the access address information is used to identify the first link.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the connection event information includes an interval between start times of adjacent connection events and/or an interval between start times of adjacent connection sub-events.

With reference to the fifth aspect, in some implementations of the fifth aspect, the connection event information further includes the time length of the connection event, the time length for the first node to send data in the connection event, and the time length for the second node to send data in the connection event. The time length of the data, the number of connection sub-events, the time length of the connection sub-event, the time length for the first node to send data in the connection sub-event, or the time length for the second node to send data in the connection sub-event one or more.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the frequency domain information includes channel occupancy mapping information and a frequency hopping step size.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the transmission attribute information is used to indicate an order in which the first node and the second node send data on the first link.

With reference to the fifth aspect, in some implementations of the fifth aspect, the transmission attribute information includes node attribute information, when the attribute of the first node is the master node on the first link and/or when the attribute of the second node is the first node When a slave node on a link, on the first link, the sending of the data of the first node precedes the sending of the data of the second node.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the timeout threshold is used to indicate a valid duration of the first link.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the transceiver unit is further configured to receive second indication information, where the second indication information is used to indicate that the first link connection times out.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the transceiver unit is further configured to receive third indication information, where the third indication information is used to indicate that the first link is established successfully.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, before generating the first configuration information, the transceiver unit is further configured to receive first request information from the first node, the first request information is used to request to be the first The node configures the first link with the second node, and the first request information includes identity information of the second node.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the communication resource of the first link and the communication resource carrying the first configuration information are orthogonal in time domain.

In a sixth aspect, a communication device is provided, which may include a transceiver unit and a processing unit, the transceiver unit is used to receive first configuration information, the first configuration information is used to indicate a first link, and the first link includes a first node A link for communicating with the second node, the first configuration information includes communication parameters and/or communication resource information of the first link, and the communication parameters include one or more of access address information, timeout threshold, or transmission attribute information item, the communication resource information includes one or more of connection event information, or frequency domain information used to indicate a frequency hopping pattern; the transceiver unit is further configured to send a data packet to the second node through the first link.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the access address information is used to identify the first link.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the connection event information includes an interval between start times of adjacent connection events and/or an interval between start times of adjacent connection sub-events.

With reference to the sixth aspect, in some implementations of the sixth aspect, the connection event information further includes the time length of the connection event, the time length for the first node to send data in the connection event, and the time length for the second node to send data in the connection event. The time length of the data, the number of connection sub-events, the time length of the connection sub-event, the time length for the first node to send data in the connection sub-event, or the time length for the second node to send data in the connection sub-event one or more.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the frequency domain information includes channel occupancy mapping information and a frequency hopping step size.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the transmission attribute information is used to indicate an order in which the first node and the second node send data on the first link.

With reference to the sixth aspect, in some implementations of the sixth aspect, the transmission attribute information includes node attribute information, and when the attribute of the first node is the master node on the first link, the first node sends the data pack.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the timeout threshold is used to indicate the valid duration of the first link.

With reference to the sixth aspect, in some implementations of the sixth aspect, when the transceiver unit does not receive the data packet sent by the second node within the valid time period, the processing unit is used to generate the second indication information, and the transceiver unit is used to send the second node Two indication information, the second indication information is used to indicate that the first link connection times out.

With reference to the sixth aspect, in some implementations of the sixth aspect, when the transceiver unit receives the data packet sent by the second node for the first time, it sends third indication information, and the third indication information is used to indicate that the first link is established successfully .

With reference to the sixth aspect, in some implementation manners of the sixth aspect, before receiving the first configuration information, the transceiver unit is further configured to send first request information, and the first request information is used to request that the first node and the second node The first link is configured, and the first request information includes identity information of the second node.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the communication resource of the first link and the communication resource carrying the first configuration information are orthogonal in time domain.

In a seventh aspect, a communication device is provided, the communication device may include a transceiver unit and a processing unit, the transceiver unit is used to receive first configuration information, the first configuration information is used to indicate a first link, and the first link includes a A link for communication between the first node and the second node, the first configuration information includes communication parameters and/or communication resource information of the first link, and the communication parameters include access address information, a timeout threshold, or one of transmission attribute information One or more items, the communication resource information includes one or more items of connection event information and frequency domain information used to indicate a frequency hopping pattern; the transceiver unit is further configured to receive a data packet from the first node through the first link.

With reference to the seventh aspect, in some implementation manners of the seventh aspect, the access address information is used to identify the first link.

With reference to the seventh aspect, in some implementation manners of the seventh aspect, the connection event information includes an interval between start times of adjacent connection events and/or an interval between start times of adjacent connection sub-events.

With reference to the seventh aspect, in some implementations of the seventh aspect, the connection event information further includes the time length of the connection event, the time length used in the connection event for the first node to send data, and the time length used in the connection event for the second node to send data. The time length of the data, the number of connection sub-events, the time length of the connection sub-event, the time length for the first node to send data in the connection sub-event, or the time length for the second node to send data in the connection sub-event one or more.

With reference to the seventh aspect, in some implementation manners of the seventh aspect, the frequency domain information includes channel occupancy mapping information and a frequency hopping step size, and the processing unit determines a frequency hopping pattern for data transmission and reception according to the frequency domain information.

With reference to the seventh aspect, in some implementation manners of the seventh aspect, the transmission attribute information is used to indicate an order in which the first node and the second node send data on the first link.

With reference to the seventh aspect, in some implementations of the seventh aspect, the transmission attribute information includes node attribute information, and when the attribute of the second node is the master node on the first link, the second node sends the data pack.

With reference to the seventh aspect, in some implementation manners of the seventh aspect, the timeout threshold indicates a valid duration of the first link.

With reference to the seventh aspect, in some implementations of the seventh aspect, when the data packet sent by the first node is not received within the first time period, the processing unit is configured to generate second indication information, and the second indication information is used to The first link connection timeout is indicated, and the transceiver unit is used to send the second indication information.

With reference to the seventh aspect, in some implementation manners of the seventh aspect, the communication resource of the first link and the communication resource carrying the first configuration information are orthogonal in time domain.

In an eighth aspect, a terminal device is provided, and the terminal device can be used to execute the method in the above first aspect or any possible implementation manner of the first aspect, or enable a communication device to execute the above second aspect or the second aspect The method in any of the possible implementation manners, or, causing the communication device to execute the third aspect or the method in any of the possible implementation manners of the third aspect, or, causing the communication device to execute the fourth aspect or the fourth aspect above A method in any of the possible implementations.

It should be understood that the terminal device may be a device in fields such as smart home, smart manufacturing, smart transportation, and smart wear. Such as vehicles, mobile phones, headsets, in-vehicle equipment, etc.

In a ninth aspect, a communication system is provided, including the fifth, sixth, and seventh aspects and the communication device in any possible implementation manner of any one of the fifth, sixth, and seventh aspects.

A tenth aspect provides a communication system, the system includes the fifth, sixth, seventh, and eighth aspects and the communication device in any of the possible implementations of the fifth, sixth, seventh, and eighth aspects, at least three communication devices When the corresponding multiple data transmission MD value includes at least two MDs with different values, at least three communication devices all keep working.

In an eleventh aspect, a communication device is provided, including at least one processor. The at least one processor is coupled with at least one memory, and may be used to execute instructions in the memory, so as to implement the method in the above first aspect or any possible implementation manner of the first aspect. Optionally, the communication device further includes at least one memory. Optionally, the communication device further includes a communication interface, at least one processor is coupled to the communication interface, and the communication interface is used for inputting and/or outputting information. The information includes at least one of instructions and data.

In an implementation manner, the communication device is a receiving end, and the communication interface may be a transceiver, or an input/output interface.

In another implementation manner, the communication device is a chip or a chip system. When the communication device is a chip or a chip system, the communication interface may be an input/output interface, an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system. A processor may also be embodied as processing circuitry or logic circuitry.

In another implementation manner, the communication device is a chip or a chip system configured in the receiving end.

Optionally, the transceiver may be a transceiver circuit. Optionally, the input/output interface may be an input/output circuit.

In a twelfth aspect, a communication device is provided, including at least one processor. The at least one processor is coupled with the memory, and can be used to execute instructions in the memory, so as to implement the method in the above second aspect or any possible implementation manner of the second aspect. Optionally, the communication device further includes at least one memory. Optionally, the communication device further includes a communication interface, at least one processor is coupled to the communication interface, and the communication interface is used for inputting and/or outputting information.

In an implementation manner, the communication device is a sending end, and the communication interface may be a transceiver, or an input/output interface.

In another implementation manner, the communication device is a chip or a chip system. When the communication device is a chip or a chip system, the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, pins or related circuits on the chip or the chip system. A processor may also be embodied as processing circuitry or logic circuitry.

In another implementation manner, the communication device is a chip or a chip system configured in the sending end.

In a thirteenth aspect, a communication device is provided, including at least one processor. The at least one processor is coupled with the memory, and can be used to execute instructions in the memory, so as to implement the method in the above third aspect or any possible implementation manner of the third aspect. Optionally, the communication device further includes at least one memory. Optionally, the communication device further includes a communication interface, at least one processor is coupled to the communication interface, and the communication interface is used for inputting and/or outputting information.

In another implementation manner, the communication device is a chip or a chip system. When the communication device is a chip or a chip system, the communication interface may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip or chip system. A processor may also be embodied as processing circuitry or logic circuitry.

In a fourteenth aspect, a chip is provided, including: at least one processor and a communication interface. The communication interface is used to receive signals input into the chip or to output signals from the chip, and the processor communicates with the communication interface and executes code instructions through logic circuits to implement the above first aspect or any of the possible implementations of the first aspect method, or a method for realizing the above-mentioned second aspect or any of the possible implementations of the second aspect, or a method for realizing the above-mentioned third aspect or any of the possible implementations of the third aspect, or A method for implementing the fourth aspect or any possible implementation manner of the fourth aspect.

In a fifteenth aspect, a communication device is provided, including: at least one memory for storing computer instructions; at least one processor for executing the computer instructions stored in at least one memory, so that the communication device performs the above-mentioned first aspect or The method in any possible implementation of the first aspect, or, causing the communication device to execute the method in the second aspect or any of the possible implementations of the second aspect, or, causing the communication device to execute the third aspect or The method in any possible implementation manner in the third aspect, or, causing the communication device to execute the fourth aspect or the method in any possible implementation manner in the fourth aspect.

A sixteenth aspect provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a communication device, the communication device implements the method in the first aspect or any possible implementation manner of the first aspect .

A seventeenth aspect provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a communication device, the communication device implements the method in the second aspect or any possible implementation of the second aspect .

In an eighteenth aspect, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a communication device, the communication device implements the third aspect or the method in any possible implementation of the third aspect .

In a nineteenth aspect, there is provided a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a communication device, the communication device implements the fourth aspect or the method in any possible implementation manner of the fourth aspect .

In a twentieth aspect, a computer program product is provided, and the computer program product includes: a computer program (also referred to as code, or an instruction), when the computer program is executed, the computer executes the first aspect or the first aspect A method in any of the possible implementations.

In a twenty-first aspect, a computer program product is provided, and the computer program product includes: a computer program (also referred to as code, or instruction), which, when the computer program is executed, causes the computer to perform the above-mentioned second aspect or the second A method in any possible implementation of an aspect.

In a twenty-second aspect, a computer program product is provided, and the computer program product includes: a computer program (also referred to as code, or an instruction), which, when the computer program is executed, causes the computer to perform the above-mentioned third aspect or the third A method in any possible implementation of an aspect.

In a twenty-third aspect, a computer program product is provided, the computer program product includes: a computer program (also called code, or instruction), when the computer program is executed, the computer executes the above-mentioned fourth aspect or the fourth A method in any possible implementation of an aspect.

Description of drawings

FIG. 1 is a schematic diagram of a communication system applicable to an embodiment of the present application;

Fig. 2 is a schematic diagram of a BLE protocol framework applicable to the embodiment of the present application;

FIG. 3 is a schematic diagram of a communication process applicable to an embodiment of the present application;

(a) in FIG. 4 is a schematic diagram of a communication resource applicable to the embodiment of the present application;

(b) in FIG. 4 is a schematic diagram of a communication resource applicable to the embodiment of the present application;

FIG. 5 is a schematic diagram of another communication process applicable to the embodiment of the present application;

FIG. 6 is a schematic block diagram of a communication device applicable to an embodiment of the present application;

Fig. 7 is a schematic block diagram of a communication device applicable to the embodiment of the present application.

detailed description

The technical solution in this application will be described below with reference to the accompanying drawings.

The terms used in the following examples are for the purpose of describing particular examples only, and are not intended to limit the application. As used in the specification and appended claims of this application, the singular expressions "a", "an", "said", "above", "the" and "this" are intended to also Expressions such as "one or more" are included unless the context clearly dictates otherwise. It should also be understood that in the following embodiments of the present application, "at least one" and "one or more" refer to one, two or more than two. The term "and/or" is used to describe the relationship between associated objects, indicating that there may be three relationships; for example, A and/or B may indicate: A exists alone, A and B exist at the same time, and B exists alone, Wherein A and B can be singular or plural. The character "/" generally indicates that the contextual objects are an "or" relationship.

The terms "including", "may include", "have" and variations thereof mean "including but not limited to", unless specifically stated otherwise.

In this embodiment of the application, "instructions" may include direct instructions and indirect instructions, and may also include explicit instructions and implicit instructions. The information indicated by a certain information (such as the information used to indicate the target time-frequency resource described below) is called the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated. For example, but not Limited to, the information to be indicated may be directly indicated, such as the information to be indicated itself or an index of the information to be indicated. The information to be indicated may also be indicated indirectly by indicating other information, where there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be realized by means of a pre-agreed (for example, protocol-specified) arrangement order of each information, thereby reducing the indication overhead to a certain extent.

In the embodiment of the present application, the first, second and various numbers are only for convenience of description, and are not used to limit the scope of the embodiment of the present application. For example, distinguishing different instruction information and the like.

In this embodiment of the present application, the duration may be understood as a time resource window, an instant domain resource and/or a frequency domain resource.

To facilitate understanding of the embodiments of the present application, a communication system applicable to the method provided in the embodiments of the present application is firstly introduced.

It should be understood that a communication system may include multiple nodes, and a node may refer to an electronic device capable of transmitting and receiving data, may include a terminal device, and may also be a chip included in the terminal device. For example, a node can be a car cockpit domain device, or a module in a car cockpit device, such as a cockpit domain controller (CDC), camera, screen, microphone, audio, electronic key, keyless entry or start One or more of modules such as controllers. In a specific embodiment, a node can also be a data transfer device, such as a network device, router, repeater, bridge or switch; it can also be a terminal device, such as various types of user equipment (user equipment, UE) , mobile phone (mobile phone), tablet computer (pad), desktop computer, headset, audio, etc.; it can also include machine intelligence devices, such as self-driving (self-driving) equipment, transportation safety (transportation safety) equipment, virtual reality ( virtual reality (VR) terminal equipment, augmented reality (augmented reality, AR) terminal equipment, machine type communication (machine type communication, MTC) equipment, industrial control (industrial control) equipment, telemedicine (remote medical) equipment, smart grid ( Smart grid) equipment, smart city (smart city) equipment, smart home equipment, etc.; can also include wearable devices (such as smart watches, smart bracelets, pedometers, etc.) and so on. In some technical scenarios, the names of devices with similar data sending and receiving capabilities may not be called nodes.

It should be understood that network equipment includes but is not limited to: evolved Node B (evolved Node B, eNB), radio network controller (Radio Network Controller, RNC), Node B (Node B, NB), base station controller (Base Station Controller , BSC), base transceiver station (Base Transceiver Station, BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB), baseband unit (BaseBand Unit, BBU), wireless fidelity (Wireless Fidelity, WIFI) The access point (Access Point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP) in the system can also be 5G, For example, NR, gNB in the system, or, transmission point (TRP or TP), one or a group (including multiple antenna panels) antenna panels of the base station in the 5G system, or, it can also be a gNB or a transmission point A network node, such as a baseband unit (BBU), or a distributed unit (distributed unit, DU), etc.

Referring to FIG. 1, FIG. 1 is an example of a communication system applicable to the embodiment of the present application. For example, in the system shown in FIG. 1 , nodes include but are not limited to base stations, notebooks, mobile phones, earphones, glasses, watches, pads, stylus pens, televisions (television, TV), keyboards, and the like.

In a short-distance communication system, generally, some nodes may be called management nodes/master control nodes/general nodes (grant nodes, G nodes), and some nodes may be called terminal nodes (terminal nodes, T nodes). A G node may be called a master node (or a master device), and a T node may be called a slave node (or a slave device). The master node and the slave node may be two types of nodes distinguished in logical functions. Among them, the master node manages the slave nodes, and the master node has the function of allocating resources, and is responsible for allocating resources for the slave nodes; the slave nodes obey the scheduling of the master node, and use the resources allocated by the master node to communicate with the master node. For example, the foregoing network device may be a master node, and the foregoing terminal device may be a slave node. For another example, the foregoing terminal device may be a master node, and another terminal device may be a slave node.

It should be understood that a slave node may also be a different component of a network device or a terminal device. For example, a master earphone and a slave earphone of a pair of earphones may serve as different slave nodes. This application is not limited to this.

Wherein, one node (apparatus or device) may be in one communication system or in a plurality of communication systems. For example, when the mobile phone and the headset perform wireless communication, the mobile phone and the headset constitute a first communication system. In the first communication system, the mobile phone is the master node, the headset is the slave node, and the headset follows the scheduling of the mobile phone. Further, if the mobile phone detects the CDC and establishes a wireless connection with the CDC, the mobile phone and the CDC form a second communication system. In the second communication system, the CDC is the master node and the mobile phone is the slave node. The mobile phone Follow CDC's schedule. Optionally, the second communication system may also include other slave nodes, such as car speakers, microphones, and the like.

In a possible implementation manner, the master node may be a network device, and the slave node may be a terminal device.

In another possible implementation manner, both the master node and the slave node may be terminal devices. For example, the master node is a mobile phone, and the slave nodes are vehicles, headsets, car keys, or vehicle-mounted devices.

The embodiment of the present application does not limit the application scenario, nor does it limit the types of the master node and the slave node.

In order to facilitate the understanding of the technical solution of the present application, an explanation of the concepts that may be involved in the present application is now made.

1. Resource orthogonality: the time domain resources and/or frequency domain resources used for information transmission do not overlap each other, for example, the time domain resource A (and/or frequency domain resource A) used to transmit information A, and the time domain resource A (and/or frequency domain resource A) used for transmission The time-domain resources B (and/or frequency-domain resources B) of the information B do not overlap with each other.

2. Communication parameters: parameters used to manage communication between nodes, such as access address information, channel state parameters, and the like.

3. Connection Interval: The length of time between the start time points of two consecutive connection events. The connection interval can be configured or agreed upon by the protocol. The connection interval includes the time length of the connection event and a preset time interval. The preset time interval may be the waiting time for switching between sending and receiving. The connection interval can be considered as part of the time domain resources used for communication.

4. Connection event: A connection established between nodes includes one or more connection events, and in each connection event, the communicating parties interact. A connection event can be the process of nodes sending packets to each other during a connection interval.

5. Transmission attribute information: information used to determine the interaction sequence of nodes, which can indicate the transmission sequence or the node attributes, and the nodes determine the interaction sequence according to their attributes. Among them, the node attributes generally include the master node or slave node on a link .

6. Channel occupancy mapping information: information used to determine which channels can be used. For example, assuming that the entire system has 4 channels, the channel occupancy mapping information may be a sequence of 4 bits (for example, 1110), which is used to indicate that the first, second, and third channels in the system are available, and the fourth channel is not available.

7. Frequency hopping step size: The carrier frequency of the transmission signal transmitted by both parties is discretely changed according to a predetermined rule, and the frequency modulation step size refers to the frequency domain interval between two adjacent frequency jumps. For example, if 2 MHz is a channel width, when the frequency hopping step size is 2, it indicates that two adjacent frequency hopping intervals are 2 channels (or 4 MHz).

The current communication interaction is usually between the master node and the slave node. When the master node confirms that at least one of the two slave nodes fails to receive the data, it sends an instruction to a node that has received the data and discards the data packet to ensure the synchronous playback of the data. With the development of technology and the improvement of user experience, how to communicate between slave nodes is an urgent problem to be solved.

Therefore, this application proposes a communication method, which is shown in Figure 3:

301: The master node generates first configuration information, where the configuration information is used to indicate a first link for communication between slave nodes, where the configuration information includes communication parameters and/or communication resource information of the first link;

302: The master node sends the first configuration information to the slave node;

303: The slave node receives first configuration information, and performs communication using resources configured by the first configuration information.

Wherein, the communication resource configuration indicated by the first configuration information may be a time domain resource configuration, a frequency domain resource configuration, or include both time domain resource configuration and frequency domain resource configuration. The first configuration information may include resource information, and may also include communication parameters between T1 and T2.

It should be understood that the master node may send the first configuration information to the slave nodes (T1, T2 nodes) by broadcast, or by multicast or unicast, which is not limited in this application.

It should also be understood that resources for the master node to send configuration information and communication resources for links between slave nodes may be orthogonal in the time domain.

The method basically configures the basic parameters and resources of the link communication between the slave nodes, and the communication between the slave nodes is realized.

Wherein, the communication resource information may be used to determine communication resources between slave nodes. For example, it may include but not limited to: connection event information, frequency domain information used to indicate a frequency hopping pattern, and the like.

The communication parameters of the first link can be used to manage or configure communication between slave nodes. For example, it may include but not limited to: access address information, timeout threshold, or transmission attribute information.

In a possible implementation manner, the communication resources may include connection interval resources.

Within the connection interval, the slave node T1 can send data packets to the slave node T2 in each connection event. And after the data packet is sent, wait for a preset time interval, and start to receive the data sent from the node T2. In each connection event, the slave node T1 and the slave node T2 complete mutual data interaction.

It should be understood that in this implementation manner, the master node configures "shared" time resources for the slave node T1 and the slave node T2. The slave node T1 finishes sending data, and after a preset time interval, the slave node T2 can send data. The time for data transmission from node T2 in each connection event is not fixed, but depends on the size of the data packet sent from node T1.

It should be understood that the maximum data packet size for a single data transmission from node T1 and/or from node T2 may be agreed upon by the protocol or configured by the master node, and the maximum time length occupied by T1 and the maximum time length occupied by T2 may be Determined according to the size of the data packet to be sent.

Wherein, the preset time interval is mainly used for transmitting and receiving conversion. After the node finishes sending the data, it starts to receive the receipt after the preset time interval; or, after the node finishes receiving the data, it starts to send the data after the preset time interval passes. Wherein, the preset time interval may be stipulated in a protocol, or may be determined through negotiation between the sending and receiving ends. This application is not limited to this.

It should be understood that the preset time interval may also be referred to as an inter frame space (inter frame space, IFS) time, or an inter packet space (inter packet space, IPS) time, or a conversion time interval (considering that it is mainly used for sending and receiving conversion) . Other names are different but are all within the protection scope of this application as the time interval between receiving and sending.

It should be understood that the node may start to receive or send data immediately after the preset time interval. In another possible implementation manner, the node may start receiving or sending at the first integer time slot after the preset time interval, so as to ensure time alignment between the sending and receiving ends.

For example, the slave node includes T1 and T2. T1 sends a data packet to T2. After the data packet is sent, T2 needs to send another data packet to T1. It takes a certain adjustment time for T2 to switch from the receiver to the sender (preset time interval).

The connection interval determines the interaction interval between the slave node T1 and the slave node T2. The connection interval can be the time distance between the start time points of two consecutive connection events, for example, it can be an integer multiple of 1.25ms within 7.5ms~4s value. The connection interval can be configured by the master node or agreed by the protocol. This application is not limited to this.

As shown in (a) in Figure 4, the connection interval can be the time interval between the starting moments of two adjacent connection events, for example, it can be CI in Figure 4, the first connection event includes from Two rounds of interaction between node T1 and slave node T2, in which slave node T1 sends data to slave node T2, and receives data sent from slave node T2 (sends data from node T2 to slave node T1) is called completing a round of data interaction , that is, the adjacent T1->T2 and T2->T1 shown in (a) in Figure 4 constitute a round of data interaction. The second connection event in the figure only includes a round of data interaction between slave nodes T1 and T2. In this embodiment, in the configured connection event, the sending and receiving parties can share the configured resources, for example, a CE can be used for T1 to send data to T2, and can also be used for T2 to send data to T1. In a specific implementation, under the condition that the configured preset time interval is met, T1 sends data to T2, and the length of the time resource occupied by T2 to send data to T1 can be changed (depending on the size of the sent data packet ), the start time of T2 sending data to T1 is also uncertain. For example, the time resources of the first group T1->T2 may be different from the time resources occupied by the second group T1->T2.

In another possible implementation manner, the connection event information may include one or more of the time length of the connection event, the time length of T1 sending data in the connection event, and the time length of T2 sending data in the connection event.

It should be noted that in this embodiment, the time resources configured by the master node for T1 to send data cannot be used for T2 to send data, and vice versa.

The time length of the connection event may be the time length from the start of the connection event to the end of the connection event, and may not be exactly the same as the connection interval.

It should be understood that the time length of the connection event may be the maximum time length from the start of the connection event to the end of the connection event.

Since the connection event is mainly used for data transmission, the connection interval may also be called the transmission interval, and the connection event may also be called the transmission event.

Further, when configuring connection intervals and connection events, the sequence of sending and receiving of T1 and T2 can be agreed at the same time.

For example, the configuration information may carry transmission attribute information, which is used to indicate the order in which T1 and T2 are sent and received.

Specifically, the transmission attribute information may be node attribute information, and the node attribute may be node attributes of T1 and T2 on the first link. For example, in the first link, T1 may be the master node, and T2 may be the slave node; or, T2 may be the master node, and T1 may be the slave node.

It should be understood that the distinction between the master node and the slave node may be used to indicate the sending and receiving sequence of T1 and T2. For example, T1 is a master node on the first link, T2 is a slave node on the first link, T1 may send data before T2, and T2 may send data to T1 after receiving the data.

Alternatively, the transmission attribute information may include a transmission sequence, which directly indicates the sending and receiving sequence of T1 and T2.

It should be understood that the transmission attribute information is not limited. For example, the transmission attribute information may only include the order that T1 is the master node or T1 is prior to T2, or it may include the order that T2 is the slave node or T1 is prior to T2, or it may include both T1 is the master node, and T2 is the slave node; or, the order of T1 precedes T2.

It should be understood that the connection event may also include multiple connection sub-events, therefore, the connection event information may also include the connection sub-event interval, the number of connection sub-events, the time length of the connection sub-event, and the connection sub-event used for T1 data transmission. or the time length used for T2 data sending in the connection sub-event.

As shown in (b) in Figure 4, a single connection event can contain multiple connection sub-events. For example, the connection event in (a) in Figure 4 includes two rounds of interaction between T1 and T2, and a single connection sub-event can include A round of interaction between slave node T1 and slave node T2. This round of interaction can be T1 sends data to T2 and then T2 sends data to T1, or T2 sends data to T1 and then T1 sends data to T2. It should be understood that the order of sending T1 and T2 data may be configured or agreed upon in an agreement, which is not limited in this application.

The interval between the start moments of two adjacent connection sub-events is called the connection sub-event interval; the start time of a single connection sub-event to the end time of the connection sub-event is called the time length of the connection sub-event. The time length of T1 data transmission and the time length of T2 data transmission in a single connection sub-event can also be configured through the master node. Within a connection sub-event, the time resource used for T1 to send data to T2 and the time resource used for T2 to send data to T1 can be pre-configured as periodically occurring resources that are fixed in time, and the time resource used for data transmission cannot Adjustment, the slave node T1 can only perform data transmission on the configured time resources in the direction of T1->T2, and the time resources allocated to the direction of T1->T2 cannot be used for data transmission in the direction of T2->T1, and vice versa. In addition, it can be seen here that the time for T2 to send data to T1 is determined, and in terms of time, it does not depend on the length of time it takes for T1 to send data to T2.

In a possible implementation manner, the protocol can configure semi-static resources in the time domain. That is, resources that appear periodically in the time domain. In a possible implementation manner, the frequency domain resources of the semi-static resources may also be fixed, or may not be fixed, for example, frequency hopping may be used in the frequency domain.

Configuring semi-static resources in the time domain may be configuring fixed periodic time domain resources, for example, configuring a periodic time domain resource for T1 to send data to T2, and/or for T2 to send data to T1 Periodic time-domain resources of .

It should be noted that the resources configured for T1 to send data to T2 and the resources used for T2 to send data to T1 may be carried in two different signalings, or may be carried in one signaling. This application is not limited to this.

It should be understood that the periodic time domain resource used for T1 to send data to T2 may be the same time length as the periodic time domain resource used for T2 to send data to T1, for example, the period used for T1 to send data to T2 Periodic time domain resources, and the periodic time domain resources used for T2 to send data to T1 can be 6ms, or different, for example, the periodic time domain resources used for T1 to send data to T2 can be 2ms, use The periodic time domain resource for sending data from T2 to T1 may be 1 ms.

It should be understood that the above numbers are only used as an example, which is not limited in the present application.

In a possible implementation manner, frequency domain resource configuration may be implemented by configuring a frequency hopping pattern. For example, the master node needs to configure a frequency hopping pattern for T1 to send data. Optionally, the master node also needs to configure a frequency hopping pattern for T1 to receive data. The frequency hopping pattern may be determined according to the channel occupation mapping information and the frequency hopping step size, that is, the configuration information may include the channel occupation mapping information and the frequency hopping step size.

It should be understood that the frequency hopping pattern of the T1 sent data should correspond to the frequency hopping pattern of the T2 received data, and the frequency hopping pattern of the T1 received data may correspond to the frequency hopping pattern of the T2 sent data.

In a possible implementation manner, the first configuration information sent by the master node to the T1 node and the T2 node further includes access address information for communication between T1 and T2. The access address is used to identify the communication channel of a pair of data transceiver units.

For example, the link through which T1 sends data to T2 and the link through which T2 sends data to T1 use the same access address, and the access address may be an identifier with a length of 8 bits. For example 00000001.

Optionally, in another implementation manner, the link through which T1 sends data to T2 may have a different access address from the link through which T2 sends data to T1.

In a possible implementation manner, the access address information may be carried in the frame header of the data frame, so that the receiving end can relatively quickly determine whether it is the expected data packet on the first link through the access address. If the data on the first link is not expected, the data may not be received continuously, thereby saving power consumption.

In a possible implementation manner, the first configuration information sent by the master node to the T1 node and the T2 node also includes a timeout threshold.

The timeout threshold can be the number of timeouts M. For example, when T1 does not receive the data sent by T2 in consecutive M configured transmission resources, or in consecutive M connection intervals, T1 sends an indication to the master node Information, the indication information is used to indicate that the slave node link connection timeout.

Exemplarily, when T2 does not receive the data sent by T1 on M consecutive configured transmission resources, or within M consecutive connection intervals, T2 sends indication information to the master node, and the indication information is used to indicate The slave link connection timed out.

It should be understood that the connection timeout may be a link establishment failure, or may be a connection timeout due to a link problem after the link establishment is successful.

The timeout threshold may also be a certain time range. For example, the timeout threshold may be 6ms. If T1 does not receive data from T2 after 6ms, it may be determined that the connection between T1 and T2 has timed out.

It should be understood that the above list of timeout thresholds is an example rather than limitation, and other conditions that can be used as connection timeout judgments are within the protection scope of the present application.

It should also be understood that the above numbers are just examples and are not specifically limited.

Optionally, T1 may also send indication information to the master node, where the indication information is used to indicate that the communication link between T1 and T2 is established successfully. Successful establishment of the communication link may mean that the link can be used for normal communication between nodes.

For example, when the T1 node receives the data packet sent by T2 on the configured link, it can report the connection completion information to the master node, or when the T2 node receives the data packet sent by T1 on the configured link, Report the connection completion information to the master node.

In a possible implementation manner, the T1 node and the T2 node can exchange logical channel configuration related information on configured resources, so as to facilitate the transmission of rich services between T1 and T2. The logical channel configuration-related information may be information such as transmission properties, reliability, or transmission quality of the logical channel.

In a possible implementation manner, a fixed logical channel number is used for link communication between slave nodes, and logical channel negotiation is not required, which can save signaling.

For example, for services such as volume adjustment, the corresponding logical channel ID is 0001, and the logical channel number is fixed, and there is no need to negotiate through signaling interaction.

In a possible implementation manner, the frame structure used for communication between T1 and T2 may further include a first indication bit, and the first indication bit is used to indicate whether the T1 node has successfully received at least one data packet, where the data packet is The data packet sent by the master node to the T1 node.

That is to say, after T1 receives the data packet sent by the master node, it can inform T2 of the "received data packet" information through the indicator bit in the frame structure of the slave node communication, and T2 makes corresponding communication preparations after being informed.

In a possible implementation, before the master node configures link communication resources between slave nodes for the T1 node, the T1 node may send a slave node link resource request to the master node, and the request information may include at least one of the following information :

The identity information of the peer device T2 that T1 expects to communicate with;

Service type information transmitted by T1 and T2 or quality of service (QoS) information such as transmission rate and transmission delay.

In a possible implementation manner, T1 may discover the identity information of the T2 node, such as media access layer address information, through a device discovery process.

Of course, it can be understood that if the device discovery process has been performed before, T1 may also store the identity information of T2, that is, each slave node stores the identity information of other slave nodes.

By requesting the master node to configure communication resources for the slave nodes, resource waste can be avoided as much as possible, and resource allocation efficiency can be improved.

Another possible implementation, as shown in Figure 5:

501: The master node generates first configuration information, the configuration information is used to indicate the first link for communication between T1 and T2, the configuration information includes communication parameters and/or communication resource information of the first link, and the configuration information also includes The transmission mode of this data transmission between T1 and T2;

502: The master node sends the first configuration information to T1 and T2

503: T1 and T2 receive the first configuration information, and communicate through resources configured in the first configuration information.

Wherein, the communication resource configuration indicated by the first configuration information is similar to the above, and will not be repeated here.

The transmission mode information included in the first configuration information sent by the master node to the T node is a transmission mode in which T1 and T2 transmit data packets for communication. The transmission mode information may include: a transparent transmission mode, a reliable transmission mode, and the like. Different transmission modes correspond to different data frame structures.

It should be understood that the transmission mode may be the transmission mode of a certain data transmission between T1 and T2, or the transmission mode of T1 and T2 within a certain period of time, or the fixed transmission mode of T1 and T2. limited.

It should be understood that the master node may send the first configuration information to the T1 and T2 nodes by broadcasting, or by multicasting or unicasting, which is not limited in this application.

It should also be understood that the content that may be included in the first configuration information is similar to that in the foregoing embodiment, and details are not repeated here.

Optionally, before the master node configures TT link transmission resources for the T node, the T node needs to send a request message to the master node to request the master node to configure link resources for T1 and T2. The request information may include the following information At least one of:

The identity information of the peer device T2 that the slave node T1 expects to communicate with;

QoS information such as service type information, transmission rate, or transmission delay transmitted from node T1 to slave node T2.

In a possible implementation, in the link communication scenario between slave nodes, in a connection event, it can be considered that all resources are shared by slave nodes. If any party has a data transmission requirement, the communication Under the condition of resource permitting (the connection event interval is not exceeded, and the configured connection event time length (if configured) is not exceeded), the slave nodes should be allowed to continue data interaction. Assume that in a connection event, the slave node T1 first To send data with the slave node T2, the MD (More Data) resource operation mechanism is shown in Table 1:

Table 1 Relationship between MD value and node execution action

It should be understood that Table 1 is only used as an example and is not limited.

It should be understood that sending an empty packet means that the sent data packet does not include a payload. That is, the slave node has no data to send.

It should be understood that when the slave node is about to send data, the data packet it sends may include a payload.

According to the contents of Table 1, it can be seen that in this embodiment, there is no management and managed relationship between the slave node T1 and the slave node T2. When the slave node T1 or the slave node T2 has data to be sent, the connection event needs to be kept. It is necessary to continue data interaction until the connection interval ends.

Of course, it can be understood that when the system configures the time length of the connection event (the time length of the connection event is less than or equal to the connection interval), when there is data to be sent from the slave node T1 or slave node T2, the connection event needs to be maintained, and both The data interaction needs to continue until the length of the connection event is reached.

When neither the slave node T1 nor the slave node T2 has data to be sent, the connection event is closed, and the slave node T1 and the slave node T2 no longer perform data interaction.

In this embodiment, the communication mode and communication state between T nodes are completely managed by the master node, which can further ensure the resource utilization rate of TT link communication.

In the above-mentioned embodiments provided in the present application, the methods provided in the embodiments of the present application are introduced from the perspective of interaction between various devices. In order to realize the various functions in the method provided by the above-mentioned embodiments of the present application, the network device or the terminal device may include a hardware structure and/or a software module, and realize the above-mentioned functions in the form of a hardware structure, a software module, or a hardware structure plus a software module . Whether one of the above-mentioned functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.

The division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation. In addition, each functional module in each embodiment of the present application may be integrated into one processor, or physically exist separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules.

Similar to the above idea, as shown in FIG. 6 , the embodiment of the present application further provides an apparatus 600 for realizing the functions of the network device or the terminal device in the above method. For example, the device may be a software module or a system on a chip. In the embodiment of the present application, the system-on-a-chip may be composed of chips, or may include chips and other discrete devices. The apparatus 600 may include: a processing unit 610 and a communication unit 620 .

In this embodiment of the application, the communication unit may also be referred to as a transceiver unit, and may include a sending unit and/or a receiving unit, respectively configured to perform the sending and receiving steps of the network device or the terminal device in the method embodiments above.

Hereinafter, the communication device provided by the embodiment of the present application will be described in detail with reference to FIG. 6 to FIG. 7 . It should be understood that the descriptions of the device embodiments correspond to the descriptions of the method embodiments. Therefore, for details that are not described in detail, reference may be made to the method embodiments above. For brevity, details are not repeated here.

A communication unit may also be referred to as a transceiver, transceiver, transceiving device, or the like. A processing unit may also be called a processor, a processing board, a processing module, a processing device, and the like. Optionally, the device in the communication unit 620 for realizing the receiving function can be regarded as a receiving unit, and the device in the communication unit 620 for realizing the sending function can be regarded as a sending unit, that is, the communication unit 620 includes a receiving unit and a sending unit. The communication unit may sometimes be called a transceiver, a transceiver, or an interface circuit, etc. The receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit, etc. The sending unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit, etc.

When the communication device 600 executes the function of the master node in any of the processes shown in Figures 2 to 5 in the above embodiment:

A processing unit, configured to configure resources and generate first configuration information

The communication unit is used for sending and receiving information.

When the communication device 600 executes the function of the T node in any of the processes shown in FIGS. 2 to 5 in the above embodiment:

a processing unit, configured to determine communication resources according to the first configuration information,

The communication unit is used for sending and receiving information.

The above is just an example, and the processing unit 610 and the communication unit 620 can also perform other functions. For more detailed description, refer to the method embodiments shown in FIGS. 2 to 5 or related descriptions in other method embodiments, and details are not repeated here.

FIG. 7 shows an apparatus 700 provided in the embodiment of the present application. The apparatus shown in FIG. 7 may be a hardware circuit implementation manner of the apparatus shown in FIG. 6 . The communication device may be applicable to the flow chart shown above, and execute the functions of the terminal device or the network device in the above method embodiments. For ease of illustration, FIG. 7 only shows the main components of the communication device.

As shown in FIG. 7 , the communication device 700 includes at least one processor 710 and an interface circuit 720 . At least one processor 710 and the interface circuit 720 are coupled to each other. It can be understood that the interface circuit 720 may be a transceiver or an input-output interface. Optionally, the communication device 700 may further include a memory 730 for storing instructions executed by the processor 710, or storing input data required by the processor 710 to execute the instructions, or storing data generated by the processor 710 after executing the instructions.

When the communication device 700 is used to implement the methods shown in FIGS. 2 to 5 , the processor 710 is used to implement the functions of the above processing unit 610 , and the interface circuit 720 is used to implement the functions of the above communication unit 620 .

When the above-mentioned communication device is a chip applied to the first device, the chip of the first device may be used to realize the function of the communication device in the above-mentioned method embodiment. The first device chip receives information from other modules (such as radio frequency modules or antennas) in the terminal device, and the information may be sent to the first device by a network device or sent to the first device by other terminal devices; or , the first device chip sends information to other modules (such as radio frequency modules or antennas) in the first device, the information can be sent by the first device to the network device, or sent by the first device to the terminal device .

It should be understood that the first device may be any device serving as both communication parties, may be a terminal device, or may be a network device, which is not limited in this application.

It can be understood that the processor in the embodiments of the present application can be a central processing unit (Central Processing Unit, CPU), and can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. A general-purpose processor can be a microprocessor, or any conventional processor.

In the embodiment of the present application, the processor can be random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable In addition to programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), registers, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art middle. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be a component of the processor. The processor and storage medium can be located in the ASIC. In addition, the ASIC can be located in a network device or a terminal device. Certainly, the processor and the storage medium may also exist in the network device or the terminal device as discrete components.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) in which computer-usable program code can be embodied.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions.

Apparently, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. In this way, if these modifications and variations of the application fall within the scope of the claims of the application and their equivalent technologies, the application also intends to include these modifications and variations.

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

A communication method, characterized in that, comprising:

generating first configuration information, where the first configuration information is used to indicate a first link, where the first link includes a link for the first node to communicate with the second node, where the first configuration information includes the Communication parameters and/or communication resource information of the first link, where the communication parameters include one or more of access address information, a timeout threshold, or transmission attribute information, where the communication resource information includes connection event information, Or one or more items in the frequency domain information used to indicate the frequency hopping pattern;

Sending the first configuration information to the first node and/or the second node.
The method according to claim 1, wherein the access address information is used to identify the first link.
The method according to claim 1 or 2, wherein the connection event information includes the interval between the start times of adjacent connection events and/or the interval between the start times of adjacent connection sub-events .
The method according to claim 3, wherein the connection event information further includes the time length of the connection event, the time length used in the connection event for the first node to send data, and the time length used in the connection event for the first node to send data. The length of time for the two nodes to send data, the number of connection sub-events, the time length of the connection sub-event, the time length for the first node to send data in the connection sub-event, or the time length for the second node in the connection sub-event One or more of the length of time to send data.
The method according to any one of claims 1 to 4, wherein the frequency domain information includes channel occupancy mapping information and frequency hopping step size.
The method according to any one of claims 1 to 5, wherein the transmission attribute information is used to indicate the order in which the first node and the second node send data on the first link .
The method according to claim 6, wherein the transmission attribute information includes node attribute information, wherein:

When the attribute of the first node is a master node on the first link and/or when the attribute of the second node is a slave node on the first link, on the first link Above, the sending of the first node data is prior to the sending of the second node data.
The method according to any one of claims 1 to 7, wherein the timeout threshold is used to indicate a valid duration of the first link.
The method of claim 8, further comprising:

Receive second indication information, where the second indication information is used to indicate that the first link connection times out.
The method according to any one of claims 1 to 8, further comprising:

Receive third indication information, where the third indication information is used to indicate that the first link is established successfully.
The method according to any one of claims 1 to 10, further comprising;

Receive first request information from the first node, where the first request information is used to request configuration of the first link, where the first request information includes identity information of the second node.
The method according to any one of claims 1 to 11, wherein the communication resources of the first link and the communication resources carrying the first configuration information are orthogonal in time domain.
A communication method, characterized in that, comprising:

receiving first configuration information, where the first configuration information is used to indicate a first link, where the first link includes a link for communication between the first node and the second node, where the first configuration information includes the first Communication parameters and/or communication resource information of a link, where the communication parameters include one or more items of access address information, timeout threshold, or transmission attribute information, where the communication resource information includes connection event information, or One or more items in the frequency domain information indicating the frequency hopping pattern;

sending a data packet to the second node through the first link.
The method of claim 13, wherein the access address is used to identify the first link.
The method according to claim 13 or 14, wherein the connection event information includes the interval between the start times of adjacent connection events and/or the interval between the start times of adjacent connection sub-events .
The method according to claim 15, wherein the connection event information further includes the time length of the connection event, the time length used for the first node to send data in the connection event, and the time length used for the first node in the connection event. The length of time for the two nodes to send data, the number of connection sub-events, the time length of the connection sub-event, the time length for the first node to send data in the connection sub-event, or the time length for the second node in the connection sub-event One or more of the length of time to send data.
The method according to any one of claims 13 to 16, wherein the frequency domain information includes channel occupancy mapping information and frequency hopping step size.
The method according to any one of claims 13 to 17, wherein the transmission attribute information is used to indicate the order in which the first node and the second node send data on the first link .
The method according to claim 18, wherein the transmission attribute information includes node attribute information, wherein:

When the attribute of the first node is the master node on the first link, the first node sends the data packet before the second node.
The method according to any one of claims 13 to 19, wherein the timeout threshold is used to indicate the effective duration of the first link.
The method of claim 20, wherein said method comprises:

When the data packet sent by the second node is not received within the valid duration, second indication information is sent, where the second indication information is used to indicate that the first link connection times out.
The method according to any one of claims 13 to 20, wherein the method comprises:

When the data packet sent by the second node is received, third indication information is sent, where the third indication information is used to indicate that the first link is established successfully.
The method according to any one of claims 13 to 22, wherein, before receiving the first configuration information, the method further comprises:

Sending first request information, where the first request information is used to request configuration of the first link, where the first request information includes identity information of the second node.
The method according to any one of claims 13 to 23, wherein the communication resources of the first link and the communication resources carrying the first configuration information are orthogonal in time domain.
A communication method, characterized in that, comprising:

receiving first configuration information, where the first configuration information is used to indicate a first link, where the first link includes a link for the first node to communicate with the second node, where the first configuration information includes the Communication parameters and/or communication resource information of the first link, the communication parameters include at least one of access address information, timeout threshold, or transmission attribute information, and the communication resource information includes connection event information, for At least one item of frequency domain information indicating a frequency hopping pattern;

A data packet from the first node is received over the first link.
The method of claim 25, wherein said method comprises:

When the data packet sent by the first node is not received within the first time length, the second indication information is sent, where the second indication information is used to indicate that the first link connection times out.
A communication method, applied to a first system, where the first system includes at least three nodes, wherein when the multiple data transmission MD values corresponding to the at least three nodes include at least two MDs with different values, The at least three nodes all keep working status.
A communication device, characterized in that it includes a transceiver unit and a processing unit, the communication device is used to perform the method described in any one of claims 1 to 12, or to perform claims 13 to 24, or, The method of any one of claims 25 to 26, or the method of claim 27.
A computer-readable storage medium, characterized in that the computer-readable storage medium is used to store a computer program, and when the computer program is run on a computer, the computer can execute any one of claims 1 to 12. The method described in item, or, make described computer carry out the method as described in any one in claim 13 to 24, or, make described computer carry out the method as described in any one in claim 25 to 26, Or, the method of claim 27.
A chip, characterized in that it includes a processor and a communication interface, and the processor is used to read instructions to execute the method according to any one of claims 1 to 12, or to execute the method according to any one of claims 13 to 24 A method as claimed in one, or performing a method as claimed in any one of claims 25 to 26, or performing a method as claimed in claim 27.
A terminal device, characterized in that the terminal device is used to perform the method according to any one of claims 1 to 12, or to perform the method according to any one of claims 13 to 24, or to perform A method as claimed in any one of claims 25 to 26, or performing a method as claimed in claim 27.
A communication system, characterized in that the communication system comprises the communication device according to claim 36 or 37.