WO2021155601A1

WO2021155601A1 - Data transmission method, low-energy bluetooth apparatus, and low-energy bluetooth chip

Info

Publication number: WO2021155601A1
Application number: PCT/CN2020/074548
Authority: WO
Inventors: 陈刚; 邹景华
Original assignee: 深圳市汇顶科技股份有限公司
Priority date: 2020-02-07
Filing date: 2020-02-07
Publication date: 2021-08-12
Also published as: CN111801955B; CN111801955A

Abstract

Disclosed in the embodiments of the present application are a data transmission method, a BLE device and a BLE chip, able to improve data transmission speeds. The present method comprises: a first device performing data exchange with a second device by means of a first link, and the first device performing data exchange with a third device by means of a second link; the first device determining the first link to be an active link, and determining the second link to be an idle link; the first device, by means of the idle link, completing one instance of data exchange in a connection time interval CI corresponding to the idle link, and then in N CIs corresponding to the idle link, stopping data exchange on the idle link, N being a positive integer; and the first device, in the time periods in which data exchange on the idle link is stopped, performing data exchange by means of the active link in each CI corresponding to the active link.

Description

Method for data transmission, low-power bluetooth device and low-power bluetooth chip

Technical field

The embodiments of the present application relate to the technical field of Bluetooth Low Energy (BLE) technology, and more specifically, to a method for data transmission, a Bluetooth low energy device, and a Bluetooth low energy chip.

Background technique

In applications where a BLE device has multiple connection links, the BLE device can only interact with the peer device through one of the links at the same time. At present, the BLE device uses an alternate method to interact with the peer device through each link. This method has the disadvantages of lower data transmission rate and higher power consumption.

Summary of the invention

The embodiments of the present application provide a data transmission method, a BLE device, and a BLE chip, which can increase the data transmission rate.

In a first aspect, a data transmission method is provided. A first device performs data interaction with a second device through a first link, and the first device performs data interaction with a third device through a second link. A device determines that the first link is an active link, and determines that the second link is an idle link; a connection time interval CI corresponding to the idle link by the first device through the idle link After completing one data exchange in the idle link, stop the data exchange of the idle link within N CIs corresponding to the idle link, where N is a positive integer; the data exchange of the first device on the idle link During the stop period, data exchange is performed through the active link in each CI corresponding to the active link.

In the technical solution of the embodiment of the present application, after completing a data exchange through the idle link in one CI corresponding to the idle link, the first device stops the idle link in N CIs corresponding to the idle link. For link data interaction, data interaction is performed through the active link during the period when the data interaction is stopped corresponding to the idle link. The technical solution provided by the embodiment of the present application reduces the number of data interactions through the idle link and increases the number of data transmissions through the active link, thereby increasing the data transmission rate.

In a possible implementation manner, the method further includes: the first device performs data exchange through the idle link in the next CI after the N CIs corresponding to the idle link.

In a possible implementation manner, the determining by the first device that the first link is an active link includes: if the first device needs to transmit data through the first link, determining the first link One link is the active link.

In a possible implementation manner, the determining by the first device that the first link is an active link includes: if the first device receives an instruction sent by a second device corresponding to the first link Message, the instruction message is used to indicate that the second device corresponding to the first link needs to transmit data to the first device through the first link, and then it is determined that the first link is an active link.

In a possible implementation manner, the determining by the first device that the first link is an active link includes: the first device determines that the first link is an active link according to a user instruction.

In a possible implementation manner, the N is not less than the number of links.

In a possible implementation manner, the priority of the data exchange by the first device through the idle link is higher than the priority of the data exchange through the active link.

In a second aspect, a low-power Bluetooth BLE device is provided, the BLE device includes a transceiving unit and a processing unit, wherein: the transceiving unit is configured to perform data interaction with a second device through a first link, and, Perform data interaction with the third device through the second link; the processing unit is configured to determine that the first link is an active link, and that the second link is an idle link; the transceiver unit, further It is used to stop the data exchange of the idle link within N CIs corresponding to the idle link after completing a data exchange within a connection time interval CI corresponding to the idle link through the idle link, Wherein, N is a positive integer; and, during the period when the data exchange of the idle link is stopped, data exchange is performed through the active link in each CI corresponding to the active link.

In a possible implementation manner, the transceiving unit is further configured to perform data exchange through the idle link in the next CI after the N CIs corresponding to the idle link.

In a possible implementation manner, the processing unit is specifically configured to: if the first device needs to transmit data through the first link, determine that the first link is an active link.

In a possible implementation manner, the processing unit is specifically configured to: if the transceiver unit receives an instruction message sent by the second device corresponding to the first link, the instruction message is used to instruct the first link If a second device corresponding to a link needs to transmit data to the first device through the first link, it is determined that the first link is an active link.

In a possible implementation manner, the processing unit is specifically configured to determine that the first link is an active link according to a user instruction.

In a possible implementation manner, the priority of the transceiver unit for data interaction through the idle link is higher than the priority for data interaction through the active link.

In a third aspect, a low-power Bluetooth BLE chip is provided, including: a memory for storing executable instructions; a processor for calling and running the executable instructions in the memory to execute the first aspect Or a method in any possible implementation of the first aspect.

Description of the drawings

Figure 1 is a schematic diagram of a BLE device connection.

Figure 2 is a sequence diagram of data interaction.

Figure 3 is another sequence diagram of data interaction.

Figure 4 is a schematic diagram of another connection of a BLE device.

Figure 5 is another sequence diagram of data interaction.

Figure 6 is another sequence diagram of data interaction.

Fig. 7 is a flowchart of a data transmission method according to an embodiment of the present application.

Fig. 8 is a data interaction sequence diagram of an embodiment of the present application.

Fig. 9 is another data interaction sequence diagram of an embodiment of the present application.

Fig. 10 is another sequence diagram of data interaction according to an embodiment of the present application.

FIG. 11 is another sequence diagram of data interaction according to an embodiment of the present application.

Fig. 12 is a schematic block diagram of a BLE device according to an embodiment of the present application.

FIG. 13 is a schematic structural diagram of a BLE chip according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

In applications where BLE devices have multiple connection links, there are specific application scenarios. Only one link (active link) is required for data transmission at a time, while other links (idle links) do not need to transmit data. However, it is still necessary to maintain the connection of the idle link, which can facilitate the user to transmit data through the other link after a certain period of time, thereby improving the user experience and avoiding the need to re-establish the connection when data is transmitted through the other link .

The BLE device can only interact with one peer device through one of the links at the same time. Therefore, by setting the priority, the BLE device can exchange data with each peer device through each link in an alternating manner. , So as to maintain the connection of multiple links.

As shown in Figure 1, BLE device G is connected to BLE device A and BLE device B through link A and link B, respectively. If the BLE device G only needs to perform data interaction with the BLE device A within a certain period of time, and does not need to perform data interaction with the BLE device B, it still needs to maintain the link B connection, which is convenient for a certain period of time. When the BLE device G needs to perform data interaction with the BLE device B, the link B is used.

As shown in the schematic diagrams of the interaction sequence as shown in Fig. 2 and Fig. 3, the BLE device G can maintain the link connection with the BLE device A and the BLE device B. FIG. 3 shows a schematic diagram of the data interaction sequence when the BLE device G and the connection event anchor points of the two opposite end devices are different, and FIG. 4 shows the connection event anchor points of the BLE device G and the two opposite end devices Schematic diagram of the data exchange sequence at the same time. It should be understood that the connection event is a process from the beginning of the air interface data interaction to the end of the air interface data interaction within a connection time interval (Connection Interval, CI) of the connected device. The connection event anchor point is the starting point of time when the device maintains the connection and starts data interaction with the peer device.

In the process of data interaction between the BLE device G and the peer device through multiple links, each interaction can only start data interaction from the starting point of one CI corresponding to each link. The CI may also be expressed as the data exchange period of each link. The time for data exchange in each CI is determined according to the amount of data, but cannot exceed the time bandwidth of one CI.

As shown in FIG. 2 and FIG. 3, after the BLE device G completes a data exchange through the link A, when it needs to perform data exchange through the link B, the data exchange of the link A must be stopped. After the link B completes a data exchange, if the link A needs to perform data exchange, the data exchange of the link B must be stopped. That is, after completing a data exchange through link A, the priority of data exchange through link A is reduced to the lowest, and at this time, the priority of data exchange through link B is the highest. After completing a data exchange through link B, the priority of data exchange through link B is reduced to the lowest, and at this time, the priority of data exchange through link A is the highest.

If the BLE device G starts to complete a data exchange at the beginning of a CI through the link A, if there is no data transmission requirement on the link B, the BLE device G can continue to exchange data through the link A until the link The data transmission on the road B starts or the one CI corresponding to the link A ends.

As shown in Figure 4, the BLE device G is connected to the BLE device A, the BLE device B, the BLE device C, and the BLE device D through the link A, the link B, the link C, and the link D, respectively. If the BLE device G only needs to perform data interaction with the BLE device A within a certain period of time, there is no need to perform data interaction with the BLE device B, the BLE device C, and the BLE device D, but the link B still needs to be maintained , The connection of link C and link D facilitates the use of link B and link C when the BLE device G needs to exchange data with the BLE device B, BLE device C, and BLE device D after a certain period of time. And link D.

FIG. 5 shows a schematic diagram of the data interaction sequence when the BLE device G and the four peer devices have different connection event anchor points, and FIG. 6 shows the connection event anchor points of the BLE device G and the four peer devices Schematic diagram of the data exchange sequence at the same time.

As shown in FIG. 5 and FIG. 6, the priority of the BLE device G for data interaction with the peer device through different links is sorted from highest to lowest: link A, link B, link C, and link D; When the BLE device starts to complete a data exchange with the peer device through the link A at the starting point of the CI corresponding to the link A, the priority of the link A is immediately reduced to the lowest level. At this time, the difference The priority of the links is sorted from highest to lowest: link B, link C, link D, and link A; when the BLE device starts to pass through the link at the beginning of a CI corresponding to the link B After B completes a data exchange with the peer device, the priority of the link B is immediately reduced to the lowest. At this time, the priorities of the different links are sorted from highest to lowest: link C, link D, and link A And link B; and so on, after the BLE device completes a data exchange through the starting point of a CI corresponding to each link, the priority of the link is immediately reduced to the lowest.

After the BLE device G starts data interaction with the peer device through the link A at the beginning of a CI corresponding to the link A, the BLE device G is at the beginning of a CI corresponding to the link B Start data interaction with the peer device through the link B, and so on, and will not be repeated for the sake of brevity.

Although the above solution can maintain the link connection between the BLE device G and multiple peer devices, the data transmission rate of the link that requires a large amount of data transmission (active link) is low, and the link that transmits data (idle link) is not required. The link) transmits empty data packets, which wastes power consumption.

For this reason, an embodiment of the present application proposes a data transmission method 700, which can increase the data transmission rate.

FIG. 7 shows a flowchart of a method 700 for data transmission according to an embodiment of the present application. The method 700 includes:

710. The first device exchanges data with the second device through the first link, and the first device exchanges data with the third device through the second link; it should be understood that the first link and the second device exchange data with each other. The link is a Bluetooth communication link.

720. The first device determines that the first link is an active link, and determines that the second link is an idle link.

It should be understood that, the first device may exchange data with at least two devices through at least two links, and there may be one or more idle links.

An active link is a link that requires data transmission. When there is a data transmission demand at either end of the link, the link can be made an active link.

Optionally, in one embodiment, if the first device needs to transmit data through the first link, it is determined that the first link is an active link.

Optionally, in one embodiment, if the first device receives the instruction message sent by the second device corresponding to the first link, the instruction message is used to indicate the first link corresponding to the first link. If the second device needs to transmit data to the first device through the first link, it is determined that the first link is an active link. When the second device corresponding to the first link needs to transmit data through the first link, an instruction message is sent to the first device; or, when the user needs to transmit data through the first link , You can touch the display screen or button of the second device corresponding to the first link to make the second device send an instruction message to the first device; the instruction message is used for the first device to The first link is determined to be an active link.

Optionally, in an embodiment, the first device determines that the first link is an active link according to a user instruction. For example, when the user needs to transmit data through the first link, he can touch a display screen or a button of the first device to make the first device determine the first link as an active link.

730. After completing a data exchange within a connection time interval CI corresponding to the idle link through the idle link, the first device stops the idle link within N CIs corresponding to the idle link Data exchange of channels, where N is a positive integer. The N CIs may be understood as a latency period corresponding to the idle link, and data exchange is not performed through the idle link during the latency period, that is, the latency period is skipped.

The first device may perform data exchange through the idle link in the next CI after the N CIs corresponding to the idle link, so as to avoid disconnection of the idle link. In addition, the data packet transmitted on the idle link is a null data packet, and the data packet transmitted on the active link is a data packet with data.

Optionally, the N is not less than the number of links. The N is not less than the number of links, which can effectively increase the data transmission rate through the active link. On the premise of ensuring that the idle link is not disconnected, the larger the N, the higher the data transmission rate through the active link.

740. The first device performs data exchange through the active link in each CI corresponding to the active link during a period when data exchange on the idle link is stopped. It should be understood that when there are multiple idle links, data exchange can be performed through the active link in each CI corresponding to the active link when all the idle links stop data exchange.

Optionally, the priority of the data exchange by the first device through the idle link is higher than the priority of the data exchange through the active link. In this way, the first device first determines whether the idle link is in the latency period, and when the idle link is in the latency period, data exchange is performed through the active link in each CI corresponding to the active link.

In an embodiment, when there are only two links in the first device, as shown in FIG. 1. One of the links is an active link, and the other link is an idle link. FIG. 8 shows a schematic diagram of a data interaction sequence when the connection event anchor points of the first device and a different second device are different, and FIG. 9 shows a time sequence when the connection event anchor points of the first device and a different second device are the same. Schematic diagram of the data exchange sequence.

As shown in FIG. 8 and FIG. 9, after the first device completes a data exchange within a connection time interval CI corresponding to the idle link through the idle link, the first device performs a data exchange on the five idle links corresponding to the idle link. The data exchange of the idle link is stopped in the CI (the data exchange through the idle link is stopped during the latency period corresponding to the idle link), and the data exchange after the 5 CIs corresponding to the idle link is stopped. Data exchange is performed through the idle link in the next CI. The BLE device performs data exchange through the active link in each CI corresponding to the active link during the period when the data exchange of the idle link is stopped. It should be understood that before stopping the data exchange through the idle link, it is necessary to ensure that one data exchange is successful, so that stability can be taken into consideration and the disconnection of the idle link can be prevented.

As shown in FIG. 8, when the idle link is latent, the first device can use the entire bandwidth time in each CI corresponding to the active link for data exchange, which improves the transmission of data through the active link. s efficiency. In addition, in the latency period of the idle link, no data packets are transmitted through the idle link, thereby reducing the power consumption of the BLE device.

In another embodiment, when the first device has four links, as shown in FIG. 3, the four links include link A, link B, link C, and link D. Suppose that it is determined that the link A is an active link, and the link B, link C, and link D are idle links. After a data exchange is completed through the idle link, 4 Stop the data exchange of the idle link within each CI. FIG. 10 shows a schematic diagram of the data exchange sequence when the connection event anchor points of the first device and different second devices are different, and FIG. 11 shows the data when the connection event anchor points of the first device and different second devices are the same Schematic diagram of the interaction sequence.

During the period during which the data exchange of the idle link (the link B, the link C, and the link D) is stopped, the first device is in each active link (the link A). Data exchange is performed within each CI through the active link. The priority of the first device for data interaction through the idle link is higher than the priority for data interaction through the active link.

As shown in FIG. 10, the first device performs data interaction through link A during the period when the data interaction of the idle link is stopped. After stopping data interaction through the active link, the first device One data exchange is completed through the link B, and the data exchange starts through the link C at the beginning of the next CI. After the first device completes a data exchange through the link C, it starts at the beginning of the next CI Data exchange is carried out through the link D. After the data exchange is carried out through the link D, during the period when the data exchange entering the idle link is stopped, all the CIs in each CI corresponding to the active link are passed. The active link performs data exchange. By analogy, I won't repeat it for the sake of brevity. It should be understood that the longer the latency of the idle link, that is, the larger the N, the higher the data transmission rate through the active link.

As shown in FIG. 11, after the first device stops data interaction through the active link, when data interaction through the idle link is required (outside the period when the data interaction of the idle link is stopped), The priority of data exchange through the idle link is sorted from high to low: link B, link C, and link D. After the first device completes a data exchange through the link B at the beginning of a CI corresponding to the link B, the priority of the link B is immediately reduced to the lowest among the idle links At this time, the priority of data interaction through idle links is sorted from highest to lowest: link C, link D, and link B; and so on, for the sake of brevity, it will not be repeated.

The first device may have multiple links connected to other devices. The at least two links or four links described in the embodiment of the present application are merely an example, and there is no limitation on this.

An embodiment of the present application provides a low-power Bluetooth BLE device 1200, and a schematic block diagram of the BLE device 1200 is shown in FIG. 12.

The BLE device 1200 includes a transceiver unit 1220 and a processing unit 1210, wherein:

The transceiving unit is configured to exchange data with the second device through the first link; and exchange data with the third device through the second link; it should be understood that the first link and the second link The road is a Bluetooth communication link.

The processing unit 1210 is configured to determine that the first link is an active link, and determine that the second link is an idle link;

The transceiving unit 1220 is further configured to complete a data exchange within a connection time interval CI corresponding to the idle link through the idle link, and then stop the said idle link within N CIs corresponding to the idle link. Data exchange on the idle link, where N is a positive integer, and during the period when the data exchange on the idle link is stopped, data is performed through the active link in each CI corresponding to the active link Interactive.

Optionally, the transceiving unit 1220 is further configured to perform data exchange through the idle link in the next CI after the N CIs corresponding to the idle link.

Optionally, the processing unit 1210 is specifically configured to: if the first device needs to transmit data through the first link, determine that the first link is an active link.

Optionally, the processing unit 1210 is specifically configured to: if the transceiving unit 1220 receives an instruction message sent by the second device corresponding to the first link, the instruction message is used to instruct the first link If the corresponding second device needs to transmit data to the first device through the first link, it is determined that the first link is an active link.

Optionally, the processing unit 1210 is specifically configured to determine that the first link is an active link according to a user instruction.

Optionally, the N is not less than the number of links.

Optionally, the priority of the transceiver unit 1220 for data interaction through the idle link is higher than the priority for data interaction through the active link.

FIG. 13 is a schematic structural diagram of a Bluetooth low energy BLE chip 1300 according to an embodiment of the present application. The BLE chip 1300 shown in FIG. 13 includes a memory 1310 and a processor 1320.

The memory 1310 is used to store executable instructions; the processor 1320 is used to call and run the executable instructions 1310 in the memory to implement the method in the embodiment of the present application.

The aforementioned processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

The aforementioned memory may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Link Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) ) And Direct Rambus RAM (DR RAM).

It should be noted that, under the premise of no conflict, the various embodiments described in this application and/or the technical features in each embodiment can be combined with each other arbitrarily, and the technical solutions obtained after the combination should also fall within the protection scope of this application. .

A person of ordinary skill in the art may be aware that the preparation methods of the examples described in the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

The specific examples in the embodiments of the present application are only to help those skilled in the art to better understand the embodiments of the present application, rather than limiting the scope of the embodiments of the present application. Improvements and deformations, and these improvements or deformations fall within the scope of protection of this application.

The above are only specific implementations of the application, but the protection scope of the embodiments of the application is not limited to this. Any person skilled in the art can easily think of changes within the technical scope disclosed in the embodiments of the application. Or replacement should be covered within the scope of protection suitable for private interests in this application. Therefore, the protection scope of the embodiments of the present application should be subject to the protection scope of the claims.

Claims

A method for data transmission, characterized in that a first device exchanges data with a second device through a first link;

The first device performs data interaction with the third device through the second link;

Determining, by the first device, that the first link is an active link, and determining that the second link is an idle link;

After the first device completes a data exchange within a connection time interval CI corresponding to the idle link through the idle link, it stops the idle link within N CIs corresponding to the idle link. Data interaction, where N is a positive integer;

The first device performs data exchange through the active link in each CI corresponding to the active link during the period when the data exchange on the idle link stops.
The method according to claim 1, wherein the method further comprises:

The first device performs data exchange through the idle link in the next CI after the N CIs corresponding to the idle link.
The method according to claim 1 or 2, wherein the determining by the first device that the first link is an active link comprises:

If the first device needs to transmit data through the first link, it is determined that the first link is an active link.
The method according to claim 1 or 2, wherein the determining by the first device that the first link is an active link comprises:

If the first device receives the instruction message sent by the second device corresponding to the first link, the instruction message is used to indicate that the second device corresponding to the first link needs to pass through the first link When data is transmitted to the first device, it is determined that the first link is an active link.
The method according to claim 1 or 2, wherein the determining by the first device that the first link is an active link comprises:

The first device determines that the first link is an active link according to the user's instruction.
The method according to any one of claims 1 to 5, wherein the N is not less than the number of links.
The method according to any one of claims 1 to 6, wherein the priority of the first device for data exchange through the idle link is higher than the priority for data exchange through the active link .
A low-power Bluetooth BLE device, characterized in that the BLE device includes a transceiver unit and a processing unit, wherein:

The transceiving unit is configured to perform data interaction with the second device through the first link; and,

Perform data interaction with the third device through the second link;

The processing unit is configured to determine that the first link is an active link, and determine that the second link is an idle link;

The transceiver unit is further configured to stop the idle link within N CIs corresponding to the idle link after completing a data exchange within a connection time interval CI corresponding to the idle link through the idle link Data exchange of the link, where N is a positive integer; and, during the period when the data exchange of the idle link is stopped, data exchange is performed through the active link in each CI corresponding to the active link .
The BLE device according to claim 8, wherein the transceiver unit is further configured to:

Data exchange is performed through the idle link in the next CI after the N CIs corresponding to the idle link.
The BLE device according to claim 8 or 9, wherein the processing unit is specifically configured to:

If the first device needs to transmit data through the first link, it is determined that the first link is an active link.
The BLE device according to claim 8 or 9, wherein the processing unit is specifically configured to:

If the transceiving unit receives the instruction message sent by the second device corresponding to the first link, the instruction message is used to indicate that the second device corresponding to the first link needs to communicate through the first link. If the first device transmits data, it is determined that the first link is an active link.
The BLE device according to claim 8 or 9, wherein the processing unit is specifically configured to:

It is determined that the first link is an active link according to the user's instruction.
The BLE device according to any one of claims 8 to 12, wherein the N is not less than the number of links.
The BLE device according to any one of claims 8 to 13, wherein the priority of the transceiving unit for data interaction through the idle link is higher than the priority for data interaction through the active link .
A low-power Bluetooth BLE chip, which is characterized in that it includes:

Memory, used to store executable instructions;

The processor is configured to call and run the executable instructions in the memory to execute the method according to any one of claims 1 to 7.