WO2019191996A1

WO2019191996A1 - Data transmission method and device

Info

Publication number: WO2019191996A1
Application number: PCT/CN2018/082051
Authority: WO
Inventors: 赵朋; 刘华章; 马汉卿; 方平
Original assignee: 华为技术有限公司
Priority date: 2018-04-04
Filing date: 2018-04-04
Publication date: 2019-10-10
Also published as: CN111149313B; CN111149313A

Abstract

An embodiment of the present application relates to the field of terminals, and disclosed thereby are a data transmission method and device, which solve the problem wherein data cannot be quickly transmitted to a peer end and the power consumption of a device is wasted. A specific solution is applied to a first device: the first device may send multiple data packets to a second device during one transmission cycle, the first device sending data packets to the second device during a first transmission cycle; the data packets comprise an indicator, and the indicator is used to indicate whether the second device needs to monitor at least one transmission cycle that is temporally continuous with the first transmission cycle.

Description

Data transmission method and device

Technical field

The embodiments of the present invention relate to the field of terminals, and in particular, to a data transmission method and device.

Background technique

Bluetooth technology is a radio technology that supports short-range communication between devices and operates in the 2.4 GHz wireless band available worldwide. With the continuous development of communication technology, the application of Bluetooth technology has become more and more extensive. For example, in recent years, Bluetooth Low Energy (BLE) technology has been widely used in mobile phones, notebook computers, wearable devices, smart homes and the like.

In the existing Bluetooth protocol, the connection event interval (hereinafter referred to as interval) and the slave device latency (connection Slave Latency, hereinafter referred to as Latency) are defined. The interval determines the time interval between two connection events. Latency determines the number of consecutive connection events that the slave device is not allowed to listen to. A point at which a connection event starts can be called an anchor point. The master device can send a data packet from the anchor point to the slave device, and the slave device can listen to the data packet sent by the master device at the anchor point to implement data interaction between the devices. . By setting the two parameters of interval and Latency, you can reduce the power consumption of the device when transmitting data using the Bluetooth protocol. However, when using the Bluetooth protocol for data transmission, not only should the power consumption of the device be saved as much as possible, but also how to increase the rate of data transmission.

In the prior art, the data transmission rate can be increased by dynamically adjusting the interval and/or Latency. The adjustment of interval and / or Latency can be initiated by the master device or by the slave device. For example, taking the adjustment of the slave-initiated interval as an example, and assuming that the master device and the slave device initially negotiate a configuration, the interval is 48.75 ms and the Latency is 0. According to the existing Bluetooth 4.0 protocol: After the master device establishes a connection with the slave device, when the data transmission rate needs to be adjusted, the slave device can send a Connection Parameter Update request to the master device. After receiving the connection parameter update request, the master device sends a connection update indication (LL_CONNECTION_UPDATE_REQ) message to the slave device to instruct the slave device to adjust the data transmission rate, and sends a connection parameter update response (Connection Parameter Update response) to the slave device. By performing the above steps, the interval is adjusted from 48.75ms to 12.5ms, that is, the data transmission rate is adjusted from low speed to high speed. Since the above message can only be transmitted in the connection event, it usually takes 3 intervals between the master device and the slave device to complete the data transmission rate adjustment. And the current Bluetooth 4.0 protocol stipulates that the shortest time point at which the adjusted rate takes effect should be no less than 6 intervals from the time point when the connection update indication message is sent (here, the interval before adjustment), that is, the connection update indication After the six intervals after the message is sent, the data can be transmitted between the devices at high speed. Moreover, in order to save power consumption of the device, after the data transmission is completed, the above steps are also required to reversely adjust the data transmission rate, that is, the interval is adjusted from 12.5 ms to a low speed (for example, 48.75 ms). If there are subsequent data transmission requirements, the above process needs to be repeated again.

In summary, in the prior art, by dynamically adjusting the interval and/or Latency to increase the data transmission rate, it usually takes at least 9 intervals to actually enter the high-speed mode for data transmission, which may result in data failure. Fast transmission, and also wasted power consumption of the device, especially in the case of a small amount of data to be transmitted. Moreover, after the data transmission is completed, it takes time and power consumption to adjust the data transmission rate from high speed to low speed, which also wastes the power consumption of the device.

Summary of the invention

The embodiment of the present invention provides a data transmission method and device, which solves the problem that data cannot be quickly transmitted to the opposite end, and the power consumption of the device is wasted.

To achieve the above objectives, the present application adopts the following technical solutions:

A first aspect of the present application provides a data transmission method, which may be applied to a first device, where the first device can send multiple data packets to a second device in one transmission cycle, and the data transmission method may include: The first device sends a data packet to the second device in the first transmission period, where the data packet includes an indication flag, where the indication flag is used to indicate whether the second device needs to be at least one time continuous with the first transmission period. The transmission cycle is monitored.

In the data transmission method provided by the embodiment of the present application, the first device sends a data packet carrying the indication flag to the second device in the first transmission period, where the indication flag is used to indicate whether the second device needs to be in the first transmission period. At least one transmission cycle that is continuous in time is monitored. In this way, by carrying an indication flag indicating whether the second device needs to monitor at least one transmission period that is temporally continuous with the transmission period in the transmission period, the first device is consecutive in time with the transmission period. When data transmission is performed in at least one transmission period, the second device determines that the monitoring needs to be continued according to the indication flag, and then receives the data transmitted by the first device in time, thereby achieving the purpose of quickly transmitting the data to the opposite end, and compared with the current There are techniques to reduce the power consumption of a device by dynamically adjusting the interval and/or Latency for data transmission.

In a possible implementation, before the sending, by the first device, the data packet to the second device in the first transmission period, the data transmission method may further include: the first device sending the first message to the second device, where The first message is used to indicate that the first device supports the first feature, the first feature is a feature that supports carrying an indication flag in the data packet to indicate whether the transmission period needs to be monitored; and the first device receives the second component from the second device. The second message is used to indicate that the second device supports the first feature.

In another possible implementation manner, when the first device communicates with the second device by using the Bluetooth protocol, since the second device monitors each transmission cycle when the latency of the slave device is 0, The first device may use the data transmission method provided by the embodiment of the present application to indicate whether the second device needs to monitor the next transmission cycle of the current transmission period, so as to implement fast data transmission to the pair. The purpose of the end.

A second aspect of the embodiments of the present application provides a data transmission method, where the method can be applied to a second device, where the second device can receive multiple data packets sent by the first device in one transmission cycle, and the foregoing data transmission method The method may include: receiving, by the second device, a data packet from the first device in the first transmission period, where the data packet includes an indication flag, where the indication flag is used to indicate whether the second device needs to be consecutive in time with the first transmission period. At least one transmission period is monitored; when the indication flag is used to indicate that the second device needs to monitor at least one transmission period that is temporally continuous with the first transmission period, the second device monitors and the first transmission period is in time At least one transmission cycle in succession.

The data transmission method provided by the embodiment of the present application, by carrying an indication flag for indicating whether the second device needs to monitor at least one transmission period that is temporally continuous with the transmission period in the transmission period, so that the first device is in the When the data transmission is performed in at least one transmission period that is continuous in time, the second device determines that the monitoring needs to be continued according to the indication flag, and then receives the data transmitted by the first device in time, so as to quickly transmit the data to the peer end. Purpose, and the method of data transmission by dynamically adjusting the interval and/or Latency compared to the prior art saves power consumption of the device.

In a possible implementation, the data transmission method may further include: when the indication flag is used to indicate that the second device does not need to monitor at least one transmission period that is consecutive in time with the first transmission period, the second The device determines the second transmission period and listens for the second transmission period. In this way, when it is determined that it is not necessary to monitor at least one transmission period that is temporally continuous with the first transmission period, the second device may determine the next transmission period that needs to be monitored, and enter a sleep state until the next transmission that needs to be monitored. The arrival of the cycle time saves the power consumption of the device.

In another possible implementation, the data transmission method may further include: the second device receiving the first message from the first device, where the first message is used to indicate that the first device supports the first feature, the first feature To support the feature that the indication flag is carried in the data packet to indicate whether the transmission period needs to be monitored, the second device sends a second message to the first device, where the second message is used to indicate that the second device supports the first feature.

A third aspect of the present application provides a data transmission method, which may be applied to a first device, where the first device can send multiple data packets to a second device in one transmission cycle, and the data transmission method may include: When the number of data packets that the first device can send to the second device is determined in one transmission period, the first device sends the first data packet to the second device in the first transmission period; wherein, in the first transmission period There is no data transmission after the first data packet; the first data packet includes an MD, and the MD is used to indicate that the first device has data transmission in the second transmission period; the second transmission period and the first transmission period are consecutive in time.

The data transmission method provided by the embodiment of the present application, when the number of data packets that the first device can send to the second device is determined in one transmission period, the first device sends the first message to the second device in the first transmission period. The data packet carries an MD, and the MD is used to indicate that the first device has data transmission in the second transmission period. There is no data transmission after the first data packet in the first transmission period, that is, the first data packet is the last data packet in the first transmission period, and the second transmission period is continuous with the first transmission period in time. Thus, in the case where the number of transmission and reception times of the transmission cycle is determined, by using the MD in the last data packet transmitted in the transmission cycle, it is indicated that there is data transmission in the transmission cycle that is continuous with the transmission cycle in time, so that The second device can timely monitor the time-continuous transmission period with the transmission period, thereby enabling the first device to quickly transmit data to the second device, and dynamically adjusting the interval and/or compared to the prior art. Latency's method of data transmission saves power consumption of the device.

In a possible implementation manner, when the number of data packets that the first device can send to the second device in one transmission period is determined, the first device sends the first device to the second device in the first transmission period. Before the data packet, the data transmission method may further include: the first device sends a first message to the second device, where the first message is used to negotiate with the second device that the first device can send to the second device in one transmission cycle. The number of data packets; the first device receives a second message from the second device, the second message is used to confirm the number of data packets that the first device can send to the second device in one transmission cycle.

A fourth aspect of the present application provides a data transmission method, where the method can be applied to a second device, where the second device can receive multiple data packets sent by the first device in one transmission cycle, and the data transmission method can include : when the number of data packets that the first device can send to the second device is determined in one transmission period, the second device receives the first data packet from the first device in the first transmission period; There is no data transmission after the first data packet; the first data packet includes an MD, and the MD is used to indicate that the first device has data transmission in the second transmission period; the second transmission period and the first transmission period are continuous in time; The second device listens for the second transmission cycle.

The data transmission method provided by the embodiment of the present application indicates that the transmission period is continuous in time with the transmission period by using the MD in the last data packet transmitted in the transmission period when the number of transmission and reception times is determined. There is data transmission, so that the second device can timely monitor the transmission cycle with the transmission cycle in time, so that the first device can quickly transmit the data to the second device, and compared with the prior art The method of dynamically adjusting the interval and/or Latency for data transmission saves power consumption of the device.

In a possible implementation manner, when the number of data packets that the first device can send to the second device is determined in one transmission cycle, the second device receives the first packet from the first device in the first transmission cycle. Before the data packet, the data transmission method may further include: the second device receiving the first message from the first device, where the first message is used to negotiate with the second device, where the first device can send to the second device in one transmission cycle The number of data packets; the second device sends a second message to the first device, where the second message is used to confirm the number of data packets that the first device can send to the second device in one transmission period.

A fifth aspect of the present application provides a data receiving method, which may be applied to a second device, where the second device is capable of receiving a plurality of data packets in one transmission cycle, and the data receiving method may include: a second device pair All the transmission periods are monitored; the second device receives the Header portion of the data packet at the reception timing of the currently monitored transmission period; when the value of the length field in the Header portion is not 0, the second device determines that there is data in the reception timing. When the value of the MD field in the Header part is 0, the second device enters the sleep state after receiving the data in the receiving occasion, and when the value of the MD field in the Header part is 1, the second device Continue to monitor the current listening transmission period until the value of the MD field in the header portion of the received data packet is 0; when the value of the length field in the Header portion is 0, and the value of the MD field in the Header portion is 0, the second device enters a sleep state. When the value of the MD field in the Header part is 1, the second device continues to listen to the currently monitored transmission period until the received According to the MD field value in the packet header part is zero. When the data packet is not received in the above reception timing, the second device enters a sleep state.

In the data receiving method provided by the embodiment of the present application, the second device monitors all the transmission periods, so that the first device can quickly transmit the data to the second device. And when the second device monitors the current transmission period, determining whether there is data transmission in the receiving occasion according to the value of the length field in the header portion of the data packet in the receiving occasion of the current transmission period, and only determining the receiving When there is data transmission in the timing, the data part of the data packet is received at the receiving timing, and the length field in the Header part has a value of 0, and when the value of the MD field in the Header part is 0, the sleep state is entered. , saving power consumption of the device.

In a possible implementation manner, the receiving occasion is the first receiving occasion in the currently monitored transmission period.

A sixth aspect of the present application provides a data receiving method, which may be applied to a second device, where the second device is capable of receiving a plurality of data packets in one transmission cycle, and the data receiving method may include: the second device according to the second device Whether there is data transmission in the first transmission period, determining whether it is necessary to monitor the second transmission period; the first transmission period and the second transmission period are consecutive in time. Wherein, when there is data transmission in the first transmission period, the second device determines that the second transmission period needs to be monitored; when there is no data transmission in the first transmission period, the second device determines that the second transmission period does not need to be monitored. .

In the data receiving method provided by the embodiment of the present application, when the second device has data transmission in the current transmission period, it predicts that there is data transmission in the next transmission period of the current transmission period, and monitors the next transmission period of the current transmission period. When there is no data transmission in the current transmission period, there is no data transmission in the next transmission period of the current transmission period, and the next transmission period of the current transmission period is not monitored, which not only enables the first device to quickly transmit data to the first transmission period. The purpose of the two devices, but also saves the power consumption of the device.

A seventh aspect of the present application provides a first device, which is capable of transmitting a plurality of data packets to a second device in a transmission cycle, where the first device may include: a sending unit, configured to be in the first transmission The data packet is sent to the second device in the period, and the data packet includes an indication flag, where the indication flag is used to indicate whether the second device needs to monitor at least one transmission period that is temporally consecutive with the first transmission period.

In a possible implementation, the sending unit is further configured to send, to the second device, a first message, where the first message is used to indicate that the first device supports the first feature, and the first feature is configured to be carried in the data packet. An indicator to indicate whether a transmission period monitoring is required.

The first device may further include: a receiving unit, configured to receive a second message from the second device, where the second message is used to indicate that the second device supports the first feature.

In another possible implementation, when the first device communicates with the second device by using the Bluetooth protocol, the first device further includes: a determining unit, configured to determine that the connection Slave Latency is not 0.

An eighth aspect of the present application provides a second device, where the second device can receive multiple data packets sent by the first device in one transmission cycle, and the second device can include: a receiving unit, configured to be in the first Receiving, in the transmission period, a data packet from the first device, where the data packet includes an indication flag, where the indication flag is used to indicate whether the second device needs to monitor at least one transmission period that is temporally consecutive with the first transmission period; And a unit, configured to: when the indication indicator is used to indicate that the second device needs to monitor at least one transmission period that is consecutive in time with the first transmission period, monitor at least one transmission period that is consecutive with the first transmission period in time.

In a possible implementation, the foregoing second device may further include: a determining unit, configured to: when the indication flag is used to indicate that the second device does not need to perform at least one transmission period that is temporally continuous with the first transmission period During the monitoring, the second transmission period is determined; the listening unit is also used to monitor the second transmission period.

In another possible implementation, the receiving unit is further configured to receive a first message from the first device, where the first message is used to indicate that the first device supports the first feature, where the first feature is supported in the data. The packet carries an indication flag to indicate whether it is necessary to monitor the transmission period.

The foregoing second device may further include: a sending unit, configured to send a second message to the first device, where the second message is used to indicate that the second device supports the first feature.

In a nine aspect of the present application, a first device is provided, where the first device is capable of transmitting a plurality of data packets to a second device in a transmission period, where the first device may include: a sending unit, configured to be in a transmission cycle When the number of data packets that the first device can send to the second device is determined, the first data packet is sent to the second device in the first transmission period; wherein, there is no data after the first data packet in the first transmission period. Transmitting; the first data packet includes an MD, the MD is used to indicate that the first device has data transmission in the second transmission period; and the second transmission period is continuous with the first transmission period in time.

In a possible implementation manner, the sending unit is further configured to send, to the second device, a first message, where the first message is used to negotiate with the second device, where the first device can send to the second device in one transmission cycle. The number of packets.

The first device may further include: a receiving unit, configured to receive a second message from the second device, where the second message is used to confirm the number of data packets that the first device can send to the second device in one transmission period .

A tenth aspect of the present application provides a second device, which is capable of receiving a plurality of data packets sent by a first device in one transmission cycle, and the second device may include: a receiving unit, configured to transmit in one transmission Receiving, when the number of data packets that the first device can send to the second device in the period, receiving the first data packet from the first device in the first transmission period; and having no data after the first data packet in the first transmission period Transmitting; the first data packet includes an MD, the MD is used to indicate that the first device has data transmission in the second transmission period; the second transmission period is continuous with the first transmission period in time; and the monitoring unit is configured to monitor the foregoing The second transmission period.

In a possible implementation, the receiving unit is further configured to receive a first message from the first device, where the first message is used to negotiate with the second device, where the first device can be used to the second device in one transmission cycle. The number of packets sent.

The foregoing second device may further include: a sending unit, configured to send, to the first device, a second message, where the second message is used to confirm the number of data packets that the first device can send to the second device in one transmission period.

An eleventh aspect of the present application provides a second device, which is capable of receiving multiple data packets in one transmission cycle, and the second device may include: a monitoring unit, configured to monitor all transmission periods a receiving unit, configured to receive a header header portion of the data packet in a receiving timing of the currently monitored transmission period; and a determining unit, configured to determine, when the value of the length field in the header portion is not 0, determining that there is data transmission in the receiving timing, And the control unit is configured to control, when the value of the MD field in the header part is 0, to control the second device to enter a sleep state after receiving the data in the receiving timing, and the monitoring unit is further configured to use the value of the MD field in the header portion. When it is 1, it continues to listen to the current listening transmission period until the value of the MD field in the header portion of the received data packet is 0; the control unit is also used to determine the length field in the header portion is 0, and the header When the value of the MD field in the part is 0, the second device is controlled to enter the sleep state, and the listening unit is further used to continue monitoring when the value of the MD field in the header portion is 1. Monitor current transmission period, the MD field value in the header portion of the packet until the receiver is 0; the control unit is further configured to, when a packet is not received in the receiving time, the control device enters the second sleep state.

In a possible implementation manner, the foregoing receiving occasion is the first receiving occasion in the currently monitored transmission period.

The twelfth aspect of the present application provides a second device, which is capable of receiving a plurality of data packets in one transmission cycle, and the second device may include: a determining unit, configured to determine whether according to the first transmission period There is data transmission to determine whether it is necessary to monitor the second transmission period; the first transmission period and the second transmission period are continuous in time. When the data transmission is performed in the first transmission period, the second device determines that the second transmission period needs to be monitored; when there is no data transmission in the first transmission period, the second device determines that the second device is not required. The transmission cycle is monitored.

A thirteenth aspect of the present application provides a first device, which may include: one or more processors and a memory; the one or more processors and the memory are connected by one or more communication buses; One or more computer instructions are stored in the memory, the one or more computer instructions being configured to be executed by the one or more processors; the one or more computer instructions for performing the first aspect or the first aspect A data transmission method according to any of the possible implementations.

Specifically, the processor is configured to control the communication bus to send a data packet to the second device in the first transmission period, where the data packet includes an indication flag, where the indication flag is used to indicate whether the second device needs to be paired with the first The transmission period is monitored for at least one transmission period that is continuous in time.

In a possible implementation, the processor is further configured to control the communication bus to send a first message to the second device, where the first message is used to indicate that the first device supports the first feature, and the first feature is supported by The data packet carries an indication flag to indicate whether the transmission period needs to be monitored. The communication bus is further configured to receive a second message from the second device, where the second message is used to indicate that the second device supports the first feature.

In another possible implementation, when the first device uses the Bluetooth protocol to communicate with the second device, the processor is further configured to determine that the connection Slave Latency is not 0.

In a fourteenth aspect of the present application, a second device is provided, the second device can include: one or more processors and a memory; the one or more processors and the memory are connected by one or more communication buses; One or more computer instructions are stored in the memory, the one or more computer instructions being configured to be executed by the one or more processors; the one or more computer instructions for performing the second or second aspect A data transmission method according to any of the possible implementations.

Specifically, the processor is configured to control the communication bus to receive a data packet from the first device in the first transmission period, where the data packet includes an indication flag, where the indication flag is used to indicate whether the second device needs to be A transmission period is monitored by at least one transmission period that is consecutive in time; the processor is further configured to: when the indication flag is used to indicate that the second device needs to monitor at least one transmission period that is consecutive with the first transmission period in time At least one transmission period that is consecutive in time with the first transmission period is monitored.

In a possible implementation, the foregoing processor is further configured to: when the indicator is used to indicate that the second device does not need to monitor at least one transmission period that is consecutive in time with the first transmission period, determine the second The transmission period monitors the second transmission period.

In another possible implementation, the processor is further configured to control the communication bus to receive a first message from the first device, where the first message is used to indicate that the first device supports the first feature, the first feature To support the feature that the indication flag is carried in the data packet to indicate whether the transmission period needs to be monitored, the second message is sent to the first device, where the second message is used to indicate that the second device supports the first feature.

A fifteenth aspect of the present application provides a first device, which may include: one or more processors and a memory; the one or more processors and the memory are connected by one or more communication buses; One or more computer instructions are stored in the memory, the one or more computer instructions being configured to be executed by the one or more processors; the one or more computer instructions for performing the third or third aspect A data transmission method according to any of the possible implementations.

Specifically, the processor is configured to: when the number of data packets that the first device can send to the second device in one transmission cycle is determined, send the first data to the second device in the first transmission period. a packet; wherein, in the first transmission period, there is no data transmission after the first data packet; the first data packet includes an MD, and the MD is used to indicate that the first device has data transmission in the second transmission period; the second transmission period is The first transmission period is continuous in time.

In a possible implementation, the processor is further configured to control the communication bus to send a first message to the second device, where the first message is used to negotiate with the second device, where the first device can The number of packets sent by the second device. The processor is further configured to control the communication bus to receive a second message from the second device, the second message being used to confirm the number of data packets that the first device can send to the second device in one transmission cycle.

In a sixteenth aspect of the present application, a second device is provided, the second device can include: one or more processors and a memory; the one or more processors and the memory are connected by one or more communication buses; One or more computer instructions are stored in the memory, the one or more computer instructions being configured to be executed by the one or more processors; the one or more computer instructions for performing the fourth or fourth aspect A data transmission method according to any of the possible implementations.

Specifically, the processor is configured to: when the number of data packets that the first device can send to the second device in one transmission cycle is determined, receive the first data from the first device in the first transmission period. a packet; there is no data transmission after the first data packet in the first transmission period; the first data packet includes an MD, the MD is used to indicate that the first device has data transmission in the second transmission period; the second transmission period is The first transmission period is continuous in time; the processor is further configured to monitor the second transmission period.

In a possible implementation, the processor is further configured to control the communication bus to receive a first message from the first device, where the first message is used to negotiate with the second device, where the first device can be in one transmission cycle. The number of packets sent to the second device. The processor is further configured to control the communication bus to send a second message to the first device, where the second message is used to confirm the number of data packets that the first device can send to the second device in one transmission period.

A seventeenth aspect of the present application provides a second device, which may include: one or more processors and a memory; the one or more processors and the memory are connected by one or more communication buses; One or more computer instructions are stored in the memory, the one or more computer instructions being configured to be executed by the one or more processors; the one or more computer instructions for performing the fifth or fifth aspect A data receiving method according to any of the possible implementations.

Specifically, the processor is configured to monitor all transmission periods; and the processor is further configured to control the header of the communication bus to receive a header in a receiving timing of a currently monitored transmission period; the processor, When the value of the length field in the header portion is not 0, it is determined that there is data transmission in the receiving occasion, and when the value of the MD field in the header portion is 0, the second device is controlled after the data reception is completed in the receiving timing. Entering the sleep state, when the value of the MD field in the header part is 1, continuing to listen to the currently listening transmission period until the value of the MD field in the header portion of the received data packet is 0; the processor is also used for When the value of the length field in the header part is 0, and the value of the MD field in the header part is 0, the second device is controlled to enter a sleep state, and when the value of the MD field in the header part is 1, the continuation is continued. Listens to the current listening transmission period until the value of the MD field in the header portion of the received packet is 0. The processor is further configured to control the second device to enter a sleep state when the data packet is not received in the receiving occasion.

In a sixteenth aspect of the present application, a second device is provided, the second device can include: one or more processors and a memory; the one or more processors and the memory are connected by one or more communication buses; One or more computer instructions are stored in the memory, the one or more computer instructions being configured to be executed by the one or more processors; the one or more computer instructions for performing the data of the sixth aspect Receiving method.

Specifically, the processor is configured to determine whether to monitor the second transmission period according to whether there is data transmission in the first transmission period; the first transmission period and the second transmission period are consecutive in time. When the data transmission is performed in the first transmission period, the second device determines that the second transmission period needs to be monitored; when there is no data transmission in the first transmission period, the second device determines that the second device is not required. The transmission cycle is monitored.

A seventeenth aspect of the present application provides a computer storage medium comprising computer instructions that, when executed on a first device, cause the first device to perform a possible implementation as in the first aspect or the first aspect A data transmission method according to any one of the third aspect or the third aspect of the invention.

A nineteenth aspect of the present application provides a computer storage medium comprising computer instructions that, when executed on a second device, cause the second device to perform a possible implementation as in the second aspect or the second aspect The method, or the data transmission method of any of the fourth aspect or the possible implementation of the fourth aspect, or the second device, the second device or the fifth aspect or the fifth aspect The data receiving method of any one of them.

In a twentieth aspect of the present application, there is provided a computer program product, when the computer program product is run on a computer, causing the computer to perform a possible implementation of the first aspect or the first aspect, or the third aspect or the third A data transmission method according to any of the possible implementations of the invention.

A twenty-first aspect of the present application provides a computer program product, when the computer program product is run on a computer, causing the computer to perform a possible implementation of the second aspect or the second aspect, or the fourth aspect or The data transmission method of any one of the possible implementations of the fourth aspect, or the computer, the data receiving method of the fifth aspect or the fifth aspect or the data receiving method according to any one of the sixth aspects.

In a twenty-second aspect of the present application, a chip system is provided, the chip system may include: one or more processors, a memory, a communication bus; the memory is configured to store one or more computer instructions, the one or more The processor is coupled to the memory via the communication bus, and when the chip system is in operation, the one or more processors execute the one or more computer instructions stored in the memory to cause the chip system to perform the first aspect or the A possible implementation of the aspect, or the data transmission method of any of the third aspect or the possible implementation of the third aspect.

In a twenty-third aspect of the present application, a chip system is provided, the chip system may include: one or more processors, a memory, a communication bus; the memory is configured to store one or more computer instructions, the one or more The processor is coupled to the memory via the communication bus, and when the chip system is in operation, the one or more processors execute the one or more computer instructions stored in the memory to cause the chip system to perform the second aspect or the A possible implementation of the second aspect, or the data transmission method of any of the fourth aspect or the possible implementation of the fourth aspect, or the second device for performing the fifth aspect or the fifth aspect of the claim The data receiving method of any one of the sixth aspect.

In a twenty-fourth aspect of the present application, there is provided a communication system, the communication system comprising: the first device as described in the seventh aspect or the possible implementation of the seventh aspect, and the eighth aspect or the eighth A second device as described in a possible implementation of the aspect. Alternatively, the communication system may comprise: the first device as described in the ninth aspect or the possible implementation of the ninth aspect, and the second device as described in the tenth aspect or the possible implementation manner of the tenth aspect .

The description of the technical features, technical solutions, advantages, or similar language in this application is not intended to imply all features and advantages in any single embodiment. Rather, it is to be understood that a description of a feature or benefit is meant to include a particular technical feature, technical solution, or benefit in at least one embodiment. Therefore, descriptions of technical features, technical solutions, or advantageous effects in the present specification are not necessarily referring to the same embodiments. Further, the technical features, technical solutions, and advantageous effects described in the embodiment can also be combined in any suitable manner. Those skilled in the art will appreciate that embodiments may be implemented without one or more specific technical features, technical solutions, or advantages of the specific embodiments. In other embodiments, additional technical features and benefits may also be identified in a particular embodiment that does not embody all embodiments.

DRAWINGS

1 is a timing diagram of transmitting data according to an embodiment of the present application;

FIG. 2 is a schematic timing diagram of another transmission data according to an embodiment of the present disclosure;

3 is a simplified schematic diagram of a system architecture provided by an embodiment of the present application;

4 is a schematic structural diagram of a mobile phone according to an embodiment of the present application;

FIG. 5 is a schematic flowchart of a data transmission method according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a header of a data packet according to an embodiment of the present disclosure;

FIG. 7 is a schematic timing diagram of another transmission data according to an embodiment of the present disclosure;

FIG. 8 is a schematic flowchart diagram of another data transmission method according to an embodiment of the present disclosure;

FIG. 9 is a schematic flowchart diagram of another data transmission method according to an embodiment of the present disclosure;

FIG. 10 is a schematic flowchart diagram of another data transmission method according to an embodiment of the present disclosure;

FIG. 11 is a schematic timing diagram of another transmission data according to an embodiment of the present application;

FIG. 12 is a schematic timing diagram of another transmission data according to an embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram of a first device according to an embodiment of the present disclosure;

FIG. 14 is a schematic structural diagram of another first device according to an embodiment of the present disclosure;

FIG. 15 is a schematic structural diagram of a second device according to an embodiment of the present disclosure;

FIG. 16 is a schematic structural diagram of another second device according to an embodiment of the present disclosure.

detailed description

In the following, the terms "first" and "second" are used for descriptive purposes only, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the embodiments of the present application, "multiple" means two or more unless otherwise stated.

In the embodiments of the present application, the words "exemplary" or "such as" are used to mean an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the words "exemplary" or "such as" is intended to present the concepts in a particular manner.

First, it should be noted that the present application can be applied to wireless communication protocols such as wireless fidelity (Wi-Fi) protocol, Bluetooth protocol, ZigBee protocol, and Near Field Communication (NFC) protocol. There are no specific restrictions here. In these wireless communication protocols, in order to save power consumption of devices, data transmission is performed between devices with a certain transmission period (such as a connection event interval in the Bluetooth protocol). In the following embodiments of the present application, for convenience of description, the Bluetooth protocol is taken as an example for description. In addition, the example in the embodiment of the present application is described by taking the Bluetooth 4.0 protocol as an example, but the embodiment of the present application is also applicable to other versions of the Bluetooth protocol, for example, the Bluetooth 4.1 protocol, the Bluetooth 4.2 protocol, and the like.

In order to facilitate a clear understanding of the following embodiments, a brief introduction of related technologies in the Bluetooth protocol is first given:

Connection event: Connection events are usually separated by a connection event interval and do not overlap. A point at which a connection event starts can be called an anchor point. The master device can send a data packet from the anchor point to the slave device, and the slave device can listen to the data packet sent by the master device at the anchor point to implement data interaction between the devices. . Moreover, the Bluetooth protocol stipulates that both devices can send and receive multiple times in one connection event, such as 4-6 times in a connection event, the only qualification condition is that the master device only needs to ensure that before the next connection event begins. The current connection event can be closed at the time of T_IFS (eg 150us). Both devices may not perform data transmission and reception in the above connection event.

The connection event interval, which is simply referred to as the interval: it determines the time interval between two connection events. Wherein, in the Bluetooth protocol, the connection event interval is the above transmission period.

For example, as can be seen in conjunction with Figure 1, the interval between connection events is 60 ms, ie interval = 60 ms. From the anchor point of the connection event to the event shutdown, the master device and the slave device perform 4 times of transmission (TX) / 4 times of reception (RX). After the event is turned off, the master device and the slave device can enter the sleep state to save the device. Power consumption.

Connection Slave Latency, hereinafter referred to as Latency: which defines the number of consecutive connection events in which the slave device does not need to be constantly listening, ie, Latency determines the continuous connection event that allows the slave device to not listen. quantity. The value of Latency can be an integer from 0 to (connSupervisionTimeout/(interval*2)-1) and should be less than 500. The connSupervisionTimeout indicates the connection supervision timeout, that is, the maximum time interval between two data packets. If the time interval between two data packets received is greater than the value defined by connSupervisionTimeout, the current chain can be considered. The road has been disconnected.

When the value of Latency is 0, it means that the number of consecutive connection events that the slave device is not listening to is 0, that is, the slave device needs to start listening at the anchor point of each connection event. For example, in conjunction with FIG. 1, taking interval=60ms as an example, when Latency=0, the slave device can start listening at the anchor point of each connection event, that is, wake up from sleep state every 60ms, so that when the master device When the anchor point of each connection event starts to send a data packet, the slave device can receive the data packet sent by the master device. When the value of Latency is not 0, such as Latency=4, the number of consecutive connection events that allow the slave device to not listen is 4, that is, the slave device can listen every 5 connection events. For example, as shown in FIG. 2, taking interval=60ms as an example, when the Latency=4, the slave device can start listening at the anchor point of the connection event 1, and enter the sleep state after the event of the connection event 1 is closed, in the connection. Event 2 - Connection event 5 does not listen, and starts listening at the anchor point of connection event 6, that is, the slave device wakes up from sleep state every 300ms to listen, so that when the master device starts from the anchor point of connection event 1 and connection event 6, When sending a packet, the slave can start listening at the anchor of connection event 1 and connection event 6 to receive the packet sent by the master.

It can be seen that when the Latency is not equal to 0, it is obvious that the data cannot be quickly transmitted to the peer end, which results in a long response time and a poor user experience. However, if the scheme of dynamically adjusting the interval and/or Latency is used in the prior art to increase the data transmission rate, the adjustment process itself takes a relatively long time, and the data cannot be quickly transmitted to the peer end, and the device is wasted. Power consumption.

In order to solve the problem that the data cannot be quickly transmitted to the peer end, and the power consumption of the device is wasted, the embodiment of the present application provides a data transmission method, where the basic principle is: the first device sends a carrying indication to the second device in the first transmission period. A data packet of the flag, the indication flag is used to indicate whether the second device needs to monitor at least one transmission period that is temporally consecutive with the first transmission period. In this way, by carrying an indication flag indicating whether the second device needs to monitor at least one transmission period that is temporally continuous with the transmission period in a transmission period, the first device is continuously continuous with the transmission period in time. When data transmission is performed in at least one transmission period, the second device can determine that the monitoring needs to be continued according to the indication flag, and then receive the data transmitted by the first device in time, thereby achieving the purpose of quickly transmitting the data to the opposite end, and comparing The prior art method of data transmission by dynamically adjusting interval and/or Latency saves power consumption of the device.

Embodiments of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

3 is a simplified schematic diagram of a system architecture to which embodiments of the present application may be applied. As shown in FIG. 3, the system architecture may include: a master device 301 and a slave device 302.

The master device 301 and the slave device 302 all refer to devices that support the above wireless communication protocol, such as the Bluetooth protocol. The master device 301 and the slave device 302 can establish a connection using the above-described wireless communication protocol to implement short-range communication. When the connection is made using the above wireless communication protocol, the party that actively initiates the connection request may be referred to as a master device, and the party that passively receives the connection request may be referred to as a slave device.

In a specific implementation, the main device 301 can be a desktop type, a laptop, a tablet computer, a handheld computer, a mobile phone, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, and a cellular phone, an individual. Personal Digital Assistant (PDA), television, VR device, AR device, wearable device, smart watch, keyboard, vehicle, vehicle tool, etc. As an example, in FIG. 3, the main device 301 is a mobile phone as an example.

In a specific implementation, the slave device 302 can be a desktop, a laptop, a tablet, a handheld computer, a mobile phone, a laptop, an Ultra-mobile Personal Computer (UMPC), a netbook, and a cellular phone, personal digital. Assistant (Personal Digital Assistant, PDA), TV, VR device, AR device, wearable device, smart glasses, smart watch, keyboard, stereo, printer, smart home device, vehicle, car tool, inkcase, earphone, bracelet, etc. Wait. The smart home device can be a water dispenser, an air conditioner, a refrigerator, and the like. As an example, the slave device 302 in FIG. 3 is exemplified by a smart watch.

It should be noted that, in the embodiment of the present application, the first device may be the foregoing master device 301, and the second device is the slave device 302. Alternatively, the first device is the foregoing slave device 302, and the second device is the master device 301.

When the master device 301 and/or the slave device 302 are mobile phones, please refer to FIG. 4, which is introduced by the master device 301 and/or the slave device 302 provided by the embodiments of the present application. It should be understood by those skilled in the art that the mobile phone shown in FIG. 4 is merely an example and does not constitute a limitation on the mobile phone, and the mobile phone may have more or less components than those shown in the figure, and may be combined. Two or more components, or may have different component configurations. The various components shown in FIG. 4 may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.

As shown in FIG. 4, the mobile phone may specifically include: a processor 401, a radio frequency (RF) circuit 402, a memory 403, a touch screen 404, a Bluetooth device 405, one or more sensors 406, and a wireless fidelity (WI). -FI) means 407, positioning means 408, audio circuit 409, peripheral interface 410, and power supply system 411. These components can communicate over one or more communication buses or signal lines (not shown in Figure 4).

The following describes the various components of the mobile phone in conjunction with Figure 4:

The processor 401 is a control center of the mobile phone, and connects various parts of the mobile phone by using various interfaces and lines, by running or executing an application (Application, App) stored in the memory 403, and calling data and instructions stored in the memory 403. , perform various functions of the mobile phone and process data. In some embodiments, the processor 401 can include one or more processing units; the processor 401 can also integrate an application processor and a modem processor; wherein the application processor primarily processes an operating system, a user interface, an application, and the like. The modem processor primarily handles wireless communications. It can be understood that the above modem processor may not be integrated into the processor 401. For example, the processor 401 may be a Kirin 960 chip manufactured by Huawei Technologies Co., Ltd. In some embodiments of the present application, the processor 401 may further include a fingerprint verification chip for verifying the collected fingerprint.

The radio frequency circuit 402 can be used to receive and transmit wireless signals during transmission or reception of information or calls. Specifically, the radio frequency circuit 402 can process the downlink data of the base station and then process the data to the processor 401. In addition, the data related to the uplink is sent to the base station. Generally, radio frequency circuit 402 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency circuit 402 can also communicate with other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to global mobile communication systems, general packet radio services, code division multiple access, wideband code division multiple access, long term evolution, email, short message service, and the like.

The memory 403 is used to store applications and data, and the processor 401 executes various functions of the mobile phone and data processing by running applications and data stored in the memory 403. The memory 403 mainly includes a storage program area and a storage data area, wherein the storage program area can store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.); the storage data area can be stored according to the use of the mobile phone. Data created at the time (such as audio data, phone book, etc.). Further, the memory 403 may include a high speed random access memory, and may also include a nonvolatile memory such as a magnetic disk storage device, a flash memory device, or other volatile solid state storage device. The memory 403 can store various operating systems, such as those developed by Apple.

Operating system, developed by Google Inc.

Operating system, etc.

Touch screen 404 can include touch-sensitive surface 404-1 and display 404-2. Wherein, the touch-sensitive surface 404-1 (eg, a touch panel) can capture a touch event on or near the user of the mobile phone (eg, the user uses a finger, a stylus, or the like on the touch-sensitive surface 404-1 or The operation in the vicinity of the touch-sensitive surface 404-1) and the collected touch information is transmitted to other devices such as the processor 401. The touch event of the user in the vicinity of the touch-sensitive surface 404-1 may be referred to as a hovering touch; the hovering touch may mean that the user does not need to directly touch the touchpad in order to select, move or drag a target (eg, an icon, etc.) And only the user is located near the electronic device in order to perform the desired function. In the context of a floating touch application, the terms "touch", "contact", and the like do not imply a direct contact with the touch screen, but rather a proximity or proximity contact. The touch-sensitive surface 404-1 capable of floating touch can be realized by capacitive, infrared light, ultrasonic, or the like. The touch sensitive surface 404-1 can include two portions of a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits a signal to the touch controller; the touch controller receives the touch information from the touch detection device, and converts the touch information into contact coordinates, and then Sended to the processor 401, the touch controller can also receive and execute the instructions sent by the processor 401. In addition, the touch sensitive surface 404-1 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. A display (also referred to as display screen) 404-2 can be used to display information entered by the user or information provided to the user as well as various menus of the mobile phone. The display 404-2 can be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The touch sensitive surface 404-1 can be overlaid on the display 404-2, and when the touch sensitive surface 404-1 detects a touch event on or near it, is transmitted to the processor 401 to determine the type of touch event, followed by the processor 401 can provide a corresponding visual output on display 404-2 depending on the type of touch event. Although in FIG. 4, touch-sensitive surface 404-1 and display screen 404-2 are implemented as two separate components to implement the input and output functions of the handset, in some embodiments, touch-sensitive surface 404-1 can be utilized. It is integrated with the display 404-2 to implement the input and output functions of the mobile phone. It can be understood that the touch screen 404 is formed by stacking a plurality of layers of materials. In the embodiment of the present application, only the touch-sensitive surface (layer) and the display screen (layer) are shown, and other layers are not described in the embodiment of the present application. Additionally, in some other embodiments of the present application, the touch-sensitive surface 404-1 can be overlaid on the display 404-2, and the size of the touch-sensitive surface 404-1 is greater than the size of the display 404-2 such that the display 404- 2 is completely covered under the touch-sensitive surface 404-1, or the touch-sensitive surface 404-1 may be disposed on the front side of the mobile phone in the form of a full-board, that is, the user's touch on the front of the mobile phone can be sensed by the mobile phone, so that Achieve a full touch experience on the front of the phone. In some other embodiments, the touch-sensitive surface 404-1 is disposed on the front side of the mobile phone in the form of a full-board, and the display screen 404-2 can also be disposed on the front side of the mobile phone in the form of a full-board, so that the front side of the mobile phone can be realized. Borderless structure.

In various embodiments of the present application, the mobile phone may also have a fingerprint recognition function. For example, the fingerprint reader 412 can be configured on the back of the handset (eg, below the rear camera) or on the front side of the handset (eg, below the touch screen 404). In addition, the fingerprint recognition function can also be implemented by configuring the fingerprint identifier 412 in the touch screen 404, that is, the fingerprint identifier 412 can be integrated with the touch screen 404 to implement the fingerprint recognition function of the mobile phone. In this case, the fingerprint identifier 412 can be configured in the touch screen 404, can be part of the touch screen 404, or can be otherwise configured in the touch screen 404. Additionally, the fingerprint identifier 412 can also be implemented as a full-board fingerprint reader, and thus the touch screen 404 can be viewed as a panel that can be fingerprinted at any location. The fingerprint identifier 412 can send the collected fingerprint to the processor 401 for the processor 401 to process the fingerprint (eg, fingerprint verification, etc.). The main component of the fingerprint identifier 412 in the embodiment of the present application is a fingerprint sensor, which can employ any type of sensing technology, including but not limited to optical, capacitive, piezoelectric or ultrasonic sensing technologies.

In addition, for a specific technical solution for integrating the fingerprint collection device in the touch screen in the embodiment of the present application, reference may be made to the patent of the US Patent Application No. US 2015/0036065A1, entitled "Fingerprint Sensor in Electronic Equipment". The application, all of its controls are incorporated by reference in the various embodiments of the present application.

The mobile phone may also include a Bluetooth device 405 for enabling data exchange between the mobile phone and other short-range electronic devices (eg, the second device 302, such as a mobile phone, smart watch, etc.). The Bluetooth device in the embodiment of the present application may be an integrated circuit or a Bluetooth chip or the like.

The handset may also include at least one type of sensor 406, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display of the touch screen 404 according to the brightness of the ambient light, and the proximity sensor may turn off the power of the display when the mobile phone moves to the ear. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity. It can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related Game, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for the mobile phone can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, no longer Narration.

The WI-FI device 407 is configured to provide the mobile phone with network access complying with the WI-FI related standard protocol, and the mobile phone can access the WI-FI access point through the WI-FI device 407, thereby helping the user to send and receive emails and browse the webpage. And access to streaming media, etc., it provides users with wireless broadband Internet access. In some other embodiments, the WI-FI device 407 can also function as a WI-FI wireless access point, and can provide WI-FI network access for other electronic devices.

The positioning device 408 is configured to provide a geographic location for the mobile phone. It can be understood that the positioning device 408 can be specifically a receiver of a positioning system such as a Global Positioning System (GPS) or a Beidou satellite navigation system. After receiving the geographical location sent by the positioning system, the positioning device 408 sends the information to the processor 401 for processing, or sends it to the memory 403 for storage. In some other embodiments, the positioning device 408 can be an Assisted Global Positioning System (AGPS) receiver, and the AGPS is an operation mode for performing GPS positioning with certain assistance, which can be utilized. The signal of the base station, in conjunction with the GPS satellite signal, allows the mobile phone to be positioned faster; in the AGPS system, the positioning device 408 can obtain positioning assistance by communicating with an auxiliary positioning server (such as a mobile phone positioning server). The AGPS system assists the positioning device 408 in performing the ranging and positioning services by acting as an auxiliary server, in which case the auxiliary positioning server provides positioning by communicating with an electronic device such as a positioning device 408 (ie, a GPS receiver) of the mobile device via a wireless communication network. assist. In still other embodiments, the positioning device 408 can also be a WI-FI access point based positioning technology. Since each WI-FI access point has a globally unique MAC address, the electronic device can scan and collect the broadcast signals of the surrounding WI-FI access points when WI-FI is turned on, so that the WI can be obtained. - the MAC address broadcasted by the FI access point; the electronic device sends the data (such as the MAC address) capable of indicating the WI-FI access point to the location server through the wireless communication network, and each WI-FI interface is retrieved by the location server. The geographic location of the entry point, combined with the strength of the WI-FI broadcast signal, calculates the geographic location of the electronic device and sends it to the location device 408 of the electronic device.

Audio circuitry 409, speaker 413, microphone 414 can provide an audio interface between the user and the handset. The audio circuit 409 can transmit the converted electrical data of the received audio data to the speaker 413, and convert it into a sound signal output by the speaker 413; on the other hand, the microphone 414 converts the collected sound signal into an electrical signal, and the audio circuit 409 After receiving, it is converted into audio data, and then the audio data is output to the RF circuit 402 for transmission to, for example, another mobile phone, or the audio data is output to the memory 403 for further processing.

Peripheral interface 410 for providing various interfaces to external input/output devices (eg, keyboard, mouse, external display, external memory, subscriber identity module card, etc.). For example, it is connected to the mouse through a universal serial bus interface, and is connected to a Subscriber Identity Module (SIM) card provided by a telecommunications carrier through a metal contact on the card slot of the subscriber identity module. Peripheral interface 410 can be used to couple the external input/output peripherals described above to processor 401 and memory 403.

The mobile phone may further include a power supply device 411 (such as a battery and a power management chip) for supplying power to various components, and the battery may be logically connected to the processor 401 through the power management chip, thereby managing charging, discharging, power consumption management, etc. through the power supply device 411. Features.

Although not shown in FIG. 4, the mobile phone may further include a camera (front camera and/or rear camera), a flash, a micro projection device, an NFC device, and the like, and details are not described herein.

FIG. 5 is a schematic flowchart diagram of a data transmission method according to an embodiment of the present application. The method is applied to the communication between the first device and the second device, wherein the first device and the second device can perform multiple times of transmitting and receiving in one transmission cycle. As shown in FIG. 5, the method may include the following steps: S501-S504.

S501: The first device sends a data packet to the second device in the first transmission period, where the data packet includes an indication flag, where the indication flag is used to indicate whether the second device needs to be consecutive in time with the first transmission period. At least one transmission cycle is monitored.

Wherein, the above indication flag may be included in a header of a data packet.

For example, the data transmission is performed by using the Bluetooth protocol between the first device and the second device. The indication flag may be represented by NCOMDD (Next Connection Event More Data), as shown in FIG. Schematic diagram of the header.

As can be seen from FIG. 6, the header of the data packet includes: a Logical Link Identifier (LLID) field, a Next Expected Sequence Number (NESN) field, and a Sequence Number (Sequence Number, SN) field, More Data (MD) field, NCMMD field, Reserve (RFU), and Length field. The NCEMD field is a new field in the application, and the other fields are standard fields existing in the Bluetooth protocol. For detailed descriptions of other fields, refer to the Bluetooth protocol, which is not described herein.

In the embodiment of the present application, the NCMMD field is used to indicate whether the second device needs to monitor at least one transmission period that is consecutive in time with the current transmission period. The length of the NCEMD field is related to the number of transmission cycles that need to indicate whether the second device needs to be monitored.

For example, the number of transmission periods that need to be instructed to be monitored by the second device is 1, that is, the first device needs to indicate whether the second device needs to monitor the next transmission period that is consecutive in time with the current transmission period. For example, the length of the NCMMD field may be 1 bit. For example, if the NCMMD field is 1, it indicates that the second device needs to monitor the next transmission period that is consecutive with the current transmission period. The NCMMD field is 0, indicating The second device does not need to listen to the next transmission cycle that is contiguous with the current transmission cycle.

For example, the number of transmission periods that need to be instructed to be monitored by the second device is 2, that is, the first device needs to indicate whether the second device needs to monitor two transmission periods that are consecutive in time with the current transmission period. For example, the length of the NCMMD field can be 2 bits. For example, the NCMMD field is 11, indicating that the second device needs to listen to the next transmission cycle that is consecutive with the current transmission cycle and the next transmission cycle. The NCEMD field is 10, indicating that the second device needs to monitor the next transmission period that is consecutive with the current transmission period, and does not need to monitor the next transmission period. The NCMMD field is 00, indicating that the second device does not need to be current and current. The next transmission period of the transmission cycle that is continuous in time and the next transmission cycle are monitored.

It should be noted that, in the embodiment of the present application, only the above indication flag is included in the header of the data packet as an example. In a specific implementation, the indication flag may also be included in other locations in the data packet. The application examples are not specifically limited. Moreover, the length of the indication mark is not specifically limited in the embodiment of the present application.

In an embodiment of the present application, in the first transmission period, the first device may carry an indication flag in the transmitted data packet, to indicate whether the second device needs to be at least temporally continuous with the first transmission period. A transmission cycle is monitored. In this way, in a case where the first device transmits data in at least one transmission period that is continuous with the first transmission period in time, the second device can determine that the monitoring needs to be continued according to the indication flag, thereby being able to receive the information in time. Data transmitted by a device.

Exemplarily, the data transmission between the first device and the second device by using the Bluetooth protocol is taken as an example. The foregoing transmission period is referred to as a connection event interval in the Bluetooth protocol, and is simply referred to as interval. Assuming that the first device negotiates with the second device, interval=60ms, Latency=4, and assumes that the first device can transmit and receive at most four times in one connection event. Referring to FIG. 7 (FIG. 7 is a timing diagram of the transmission data shown from the perspective of the transmitting device, that is, the first device), when the first device has a data transmission requirement, and it is assumed that the data needs to be divided into 7 data packets. At the time of transmission, the first device can start data transmission in interval 1. Since the first device can send up to 4 times of data in one connection event, the first device can start the first TX, the second TX, the third TX, and the anchor point of the connection event 1 corresponding to the interval 1 At the fourth TX, the data packet 1, the data packet 2, the data packet 3, and the data packet 4 are respectively transmitted. In addition, since Latency=4, and the interval 1 is an interval that the second device needs to monitor according to the interval and the Latency, the second device does not monitor the interval 2 according to the provisions of the existing Bluetooth protocol. In the embodiment of the present application, in order to ensure that the data of the first device can be transmitted to the second device in time, the first device may carry the indication flag in the data packet sent in the interval 1, and the indication flag is used at this time. Indicates that the second device needs to listen to interval 2. In a specific implementation, the first device may carry the indication flag in all data packets sent in the interval 1, that is, the data packet 1, the data packet 2, the data packet 3, and the data packet 4, or may be only in the interval 1. The last transmitted packet, that is, the packet 4 carries the indication flag to save information overhead. For example, in conjunction with the example shown in FIG. 6, the first device carries an NCMMD field of value 1 in the header of the data packet 4 transmitted in the interval 1 to indicate that the second device needs to listen to the interval 2. In addition, the first device may send the remaining data packets, that is, the data packet 5 and the data packet 6, respectively, at the first TX, the second TX, and the third TX starting from the anchor point of the connection event 2 corresponding to the interval 2. And packet 7.

It should be noted that, in the embodiment of the present application, in the case that the data transmission is performed by using the Bluetooth protocol between the first device and the second device, the foregoing sending the data packet in the interval may specifically refer to the connection corresponding to the interval. The packet is sent in the event. The foregoing monitoring the interval may specifically refer to monitoring the connection event corresponding to the interval. For example, the foregoing sending a data packet in the interval 1 may specifically mean that the data packet is sent in the connection event 1 corresponding to the interval 1. The monitoring of the interval 2 may be performed by monitoring the connection event 2 corresponding to the interval 2.

S502. The second device receives the data packet from the first device in the first transmission period.

In conjunction with the example shown in FIG. 7, the second device may listen to the interval 1 to receive a data packet that the first device starts transmitting at the anchor point of the connection event 1 corresponding to the interval 1.

After the second device receives the data packet sent by the first device in the first transmission period, it may determine, according to the indication flag included in the received data packet, whether at least one transmission period that is temporally consecutive with the first transmission period is needed. Monitor.

S503. When the indication flag is used to indicate that the second device needs to monitor at least one transmission period that is consecutive in time with the first transmission period, the second device pairs the at least one transmission that is consecutive in time with the first transmission period. The cycle is monitored.

When the second device determines that the indication flag is used to indicate that the second device needs to monitor at least one transmission period that is temporally consecutive with the first transmission period, the second device may consider that the first device is in time with the first transmission period Data transmission is performed in at least one consecutive transmission period, and at this time, the second device can monitor at least one transmission period that is temporally continuous with the first transmission period. For example, in conjunction with the example shown in FIG. 7, the second device may listen to the interval 2 to receive a data packet that the first device starts transmitting at the anchor point of the connection event 2 corresponding to the interval 2.

It should be noted that, in some embodiments of the present application, if the first device needs to transmit the data to be transmitted in the current transmission period, the first device may carry the indication in the data packet sent in the current transmission period. The second device does not need to indicate the at least one transmission period that is consecutive in time with the current transmission period, so that the second device can enter the sleep state after receiving the completion data in the current transmission period, and can be configured according to the configuration. The relevant parameters, such as the interval and the Latency parameters in the Bluetooth protocol, determine the next transmission period that needs to be monitored, and then monitor the determined transmission period. For example, in conjunction with the example shown in FIG. 7, after receiving the data packet in the connection event 2 corresponding to the interval 2, the second device may enter a sleep state, and since the first device has completely transmitted the data in the interval 2, That is, the indication flag included in the data packet in the connection event 2 corresponding to the interval 2 is used to indicate that the second device does not need to monitor the time interval 3 consecutively with the interval 2, so the second device can according to the data in the connection event 2. The indication flag included in the packet determines that the interval 3 is not required to be monitored, and according to the interval=60ms and the Latency=4, it is determined that the interval 4 and the interval 5 do not need to be monitored, and the interval 6 needs to be monitored, and the second device can be corresponding. The time point wakes up from sleep and listens to interval 6. In addition, in the embodiment of the present application, when the indication flag is used to indicate that the second device does not need to monitor for some or some intervals, the second device may also monitor the intervals. That is, in the case that the indication flag is used to indicate that the second device does not need to monitor the interval, the second device may determine whether the interval needs to be monitored according to the configuration of the second device. There are no specific restrictions here.

S504. When the indication flag is used to indicate that the second device does not need to monitor at least one transmission period that is temporally consecutive with the first transmission period, the second device determines the second transmission period, and monitors the second transmission period.

When the second device determines that the indication flag is used to indicate that the second device does not need to monitor at least one transmission period that is temporally consecutive with the first transmission period, the second device may determine, according to the configured related parameters, the next one that needs to be monitored. The transmission period, that is, the second transmission period, and the second transmission period is monitored. It should be noted that the specific implementation of determining the second transmission period may refer to the related description in S503, and the embodiments of the present application are not described in detail herein.

In another embodiment of the present application, as shown in FIG. 8, before the first device sends a data packet to the second device in the first transmission period, the method may further include the following steps: S505-S506.

S505. The first device sends a first message to the second device, where the first message is used to indicate that the first device supports the first feature. The first feature is to support the feature of carrying an indication flag in the data packet to indicate whether the transmission period needs to be monitored.

S506. The second device sends a second message to the first device, where the second message is used to indicate that the second device supports the first feature.

As an example, the data transmission between the first device and the second device by using the Bluetooth protocol is used as an example. The first message may be a logical link control protocol feature request (LLCP Feature Request), and the second message may be For the logical link control protocol feature response (LLCP Feature Response). Exemplarily, after the first device establishes a physical layer connection with the second device, the first device may send a LLCCP Feature Request to the second device, and carry the LLC feature in the LLCP Feature Request when the first device supports the first feature. The first characteristic is to indicate that the first device supports the first characteristic. After receiving the LLCP Feature Request, the second device replies to the first device with the first feature, and when the second device supports the first feature, the second device carries the first feature to indicate that the second device supports the first characteristic. After the first device and the second device obtain the feature list supported by the other party, if both the first feature is supported, the first device and the second device start the first feature. If one party does not support the first feature, the two devices can ignore the indicator carried in the data packet when interacting, and determine the transmission period to be monitored according to the existing protocol. Alternatively, if one party does not support the first feature, the two devices may not carry the indication flag when interacting, but determine the transmission period that needs to be monitored according to the existing protocol.

In the data transmission method provided by the embodiment of the present application, the first device sends a data packet carrying the indication flag to the second device in the first transmission period, where the indication flag is used to indicate whether the second device needs to be in the first transmission period. At least one transmission cycle that is continuous in time is monitored. In this way, by carrying an indication flag indicating whether the second device needs to monitor at least one transmission period that is temporally continuous with the transmission period in a transmission period, the first device is continuously continuous with the transmission period in time. When data transmission is performed in at least one transmission period, the second device determines that the monitoring needs to be continued according to the indication flag, and then receives the data transmitted by the first device in time, thereby achieving the purpose of quickly transmitting the data to the opposite end, and comparing The prior art saves power consumption of the device by dynamically adjusting the interval and/or Latency for data transmission.

FIG. 9 is a schematic flowchart diagram of another data transmission method according to an embodiment of the present application. The method is applied to the communication between the first device and the second device, wherein the first device and the second device can perform multiple times of transmitting and receiving in one transmission cycle. As shown in FIG. 9, the method may include the following steps: S901-S903.

S901, when the number of data packets that the first device can send to the second device is determined in one transmission period, the first device sends the first data packet to the second device in the first transmission period; There is no data transmission after the first data packet, the first data packet includes an MD, the MD is used to indicate that the first device has data transmission in the second transmission period, and the second transmission period and the first transmission period are in time. continuous.

S902. The second device receives the first data packet from the first device in the first transmission period.

S903. The second device monitors the second transmission period.

Exemplarily, according to the provisions of the existing Bluetooth protocol, the MD field included in the header of the data packet is used to indicate whether there is still another data to be transmitted among the same connection event. For example, MD=1 means that there is still another data to be transmitted among the same connection event, that is, after the data packet, there is another data packet to be transmitted in the connection event corresponding to the current transmission period, and MD=0 means that it is in the same There will be no next data to be transmitted in the connection event, ie the packet is the last packet of the connection event corresponding to the current transmission cycle. It can be simply understood that, according to the provisions of the existing Bluetooth protocol, the MD included in the other data packets except the last data packet of the connection event corresponding to the current transmission period is 1, and the last one of the connection events corresponding to the current transmission period. The MD contained in the data packet is 0. The reason for this definition is that the number of transmissions and receptions in the connection event corresponding to one transmission cycle is unknown. In the embodiment of the present application, when the number of times of sending and receiving in one transmission cycle is determined, the first device may reuse the MD in the prior art, and set the MD included in the first data packet to 1, which is used to indicate The current transmission cycle will have data transmission during the second consecutive transmission cycle. There is no data transmission after the first data packet in the current transmission period, that is, the first data packet is the last data packet of the current transmission period. In this way, after the second device receives the first data packet, when there is no data transmission after the first data packet in the current transmission period, that is, the first data packet is the last data packet of the current transmission period (in the current transmission cycle) When the number of times of sending and receiving is determined, if the two devices can determine whether the currently transmitted data packet is the last data packet of the current transmission period, if the second device determines that MD=1 in the first data packet, It can be confirmed that there will be data transmission in the continuous transmission period with the current transmission period, that is, it is confirmed that the second transmission period needs to be monitored. In addition, after the first data packet is parsed, the first device and the second device end the connection event corresponding to the current transmission period.

For example, in conjunction with the example shown in FIG. 7, the first device sets the MD in packet 4 to 1 to indicate that the first device will have data transmissions in interval 2 so that the second device can listen to interval 2. It should be noted that, when the data transmission is performed by using the embodiment shown in FIG. 9, the Header of the transmitted data packet does not include the NCMMD field shown in FIG. 6, but is included in the Header according to the provisions of the existing Bluetooth protocol. The LLID field, the NESN field, the SN field, the MD field, the RFU, and the Length field may be used.

In another embodiment of the present application, as shown in FIG. 10, before the first device sends the first data packet to the second device in the first transmission period, the method may further include the following steps: S904-S905.

S904. The first device sends a first message to the second device, where the first message is used to negotiate, with the second device, the number of data packets that the first device can send to the second device in one transmission period.

S905. The second device sends a second message to the first device, where the second message is used to confirm the number of data packets that the first device can send to the second device in one transmission period.

As an example, the first message may be a LLCP Feature Request, and the second message may be a LLCP Feature Response, that is, the first device and the second device may pass the LLCP Feature Request and after establishing the physical layer connection. The LLCP Feature Response negotiates the number of packets that the first device can send to the second device in one transmission cycle.

It should be noted that, in the embodiment of the present application, in the case that the data transmission is performed by using the Bluetooth protocol between the first device and the second device, the foregoing sending the data packet in the transmission period may specifically mean that the transmission period corresponds to The packet is sent in the connection event. The number of times of transmission and reception in the above transmission period may specifically refer to the number of times of connection and reception of the connection event corresponding to the transmission period. The number of data packets that can be transmitted in the transmission cycle may specifically refer to the number of data packets that can be transmitted in the connection event corresponding to the transmission cycle.

In addition, it should be noted that when the first device and the second device use the Bluetooth protocol for data transmission, the second device will each connection event when the Latency=0 according to the existing Bluetooth protocol. The connection event corresponding to the interval is monitored. Therefore, in the embodiment of the present application, when using the data transmission methods shown in FIG. 5 and FIG. 8 and FIG. 9 and FIG. 10 of the embodiment of the present application, the first device may first determine the Latency. If the value of the value is 0, if the Latency is not equal to 0, the data transmission method provided by the embodiment of the present application may be used for data transmission. Moreover, when data transmission is performed between the devices by using the foregoing method, the transmission rate may be adjusted between the first device and the second device by using a method in the prior art, such as a scheme for adjusting interval and/or Latency initiated by the device. Or the scheme for adjusting the interval and/or the Latency initiated by the master device, that is, the mechanism for transmitting data between the devices by using the above method, and the mechanism for adjusting the transmission rate between the devices in the prior art can coexist. The two will have no effect.

Another embodiment of the present application provides a data receiving method, which is applied to a process in which a first device communicates with a second device, where the first device and the second device can perform multiple times of transmitting and receiving in one transmission cycle. The method may include the following process: when the first device has data to transmit, if all data transmission cannot be completed in one transmission cycle, the first device may perform data transmission in consecutive multiple transmission cycles.

For the second device, in order to receive the data sent by the first device as soon as possible, the second device can monitor all transmission periods. Moreover, in order to save power consumption of the device, when the second device monitors the current transmission period, the second device may first receive the Header portion of the data packet in the receiving occasion (such as RX) of the current transmission period, and according to the length field in the Header portion. The value is used to determine if there is data transmission in the receiving occasion. The length field can be used to indicate whether there is data transmission in the current receiving occasion. When the value of the length field is not 0, the second device may determine that there is data transmission in the current receiving occasion, and at this time, the data portion of the data packet may be received at the current receiving occasion. When the value of the length field is 0, the second device may determine that there is no data transmission in the current receiving occasion. The second device may further determine, according to the value of the MD field in the header part, whether there is still another data to be transmitted. If the value of the MD field in the Header part is 0, the second device may end the current connection event and enter the sleep state. status. If the value of the MD field in the Header part is 1, the second device may continue to listen to the current transmission period until the value of the MD field in the header portion of the received data packet is zero. In some embodiments of the present application, if the second device does not receive any packet in the receiving timing of the current transmission period, the second device may enter a dormant state, and the second device does not receive any packet, specifically, the second device. The device does not hear any Bluetooth signals.

In a possible implementation manner, the foregoing receiving occasion may be the first receiving occasion in the current transmission period.

For example, the data transmission between the first device and the second device using the Bluetooth protocol is taken as an example. As shown in FIG. 11 (FIG. 11 is a timing diagram of transmission data shown from the perspective of the receiving device), assuming that the initial configuration negotiated by the first device with the second device is interval=60 ms, Latency=4, then according to the existing Bluetooth. According to the protocol, the second device may not monitor the connection event corresponding to the connection event corresponding to the interval 2 to the interval 5. In the embodiment of the present application, in order to complete the data transmission as soon as possible, the second device may be the connection event corresponding to the interval 2, the connection event 3 corresponding to the interval 3, the connection event 4 corresponding to the interval 4, and the interval 5 Connection event 5 is listening.

Taking the second device to listen to the connection event 2 corresponding to the interval 2 as an example. The second device starts from the anchor point of the connection event 2 corresponding to the interval 2, and when the first RX is monitored, the Header portion of the data packet can be received in the first RX, and can be received according to the first RX. The value of the length field in the header portion of the packet determines whether there is data transmission in the first RX. If the second device determines that the length field in the header portion of the data packet received in the first RX is not 0 (not shown in FIG. 11), the second device may determine that there is data in the first RX. Transmit and receive data transmitted in the first RX. In addition, the second device may determine, according to the value of the MD field in the Header part of the data packet received in the first RX, whether there is another data transmission in the connection event 2, when it is determined that there is a next data transmission, The second device can listen to the second RX until the value of the MD field in the header portion of the received data packet is zero. When it is determined that there is no next data transmission, the second device can enter a sleep state after the data reception in the first RX is completed. Of course, in other embodiments, the second device may also determine whether there is data transmission in the second RX according to the value of the MD field in the Header part of the data packet received in the first RX, but The second RX listens, and when listening to the second RX, determines whether there is data transmission in the second RX according to the value of the length field in the Header portion of the received packet in the second RX.

If the second device determines that the value of the length field in the header portion of the data packet received in the first RX is 0, the second device may determine that there is no data transmission in the first RX. Moreover, the second device may close the current connection event and enter a sleep state (as shown in FIG. 11) when determining that the value of the MD field in the header portion of the data packet received in the first RX is 0. When the value of the MD field in the header portion of the received packet in the first RX is 1, the second device may continue to listen to the second RX until the MD field in the header portion of the received packet is taken. The value is 0.

It should be noted that, for the relevant parameters according to the configuration, such as the transmission period determined by the interval and the Latency in the Bluetooth protocol, such as the interval 1 shown in FIG. 11, the above method may be used to determine the reception in the transmission period. Whether there is data transmission at the timing or not, the method in the existing Bluetooth protocol can also be used to determine whether there is data transmission in the receiving occasion, which is not limited in this embodiment of the present application.

Another embodiment of the present application further provides another data receiving method, which is applied to a process in which a first device communicates with a second device, where the first device and the second device can perform multiple times of transmitting and receiving in one transmission cycle. In the method, the second device may determine whether to monitor the next transmission period of the current transmission period according to whether there is data transmission in the current transmission period. For example, if there is data transmission in the current transmission cycle, the second device will listen to the next transmission cycle of the current transmission cycle, and when there is no data transmission in the current transmission cycle, the second device can consider the next transmission of the current transmission cycle. There is no data transmission in the cycle, which can not monitor the next transmission cycle of the current transmission cycle, but according to the relevant parameters of the configuration, such as the interval and the Latency parameters in the Bluetooth protocol, the next need to be monitored. The transmission period, in turn, monitors the determined transmission period. For example, as shown in FIG. 12 (FIG. 12 is a timing diagram of transmission data shown from the perspective of a receiving device), data transmission using a Bluetooth protocol between the first device and the second device is taken as an example. When the second device monitors the connection event 1 corresponding to the interval 1, it is determined that there is data transmission in the connection event 1 corresponding to the interval 1. The second device may have data transmission according to the connection event 1 corresponding to the interval 1. It is predicted that the connection event 2 corresponding to the interval 2 may also have data transmission. At this time, the second device monitors the connection event 2 corresponding to the interval 2. In this way, when the first device performs data transmission in the connection event 2 corresponding to the interval 2, the second device can receive the data transmitted by the first device in time, and achieve the purpose of quickly transmitting the data to the opposite end.

It should be noted that there is data transmission in the current transmission period, and in the specific implementation, it may refer to the transmission of the data packet whose length field of the header part is not 0, that is, the second device only receives the data length not 0. When the data packet is received, the next transmission period of the current transmission period is monitored; or, the second device may receive the data packet in the current transmission period (including the value of the length field of the header portion of the data packet). If the value is 0 or not 0, the second device will listen to the next transmission period of the current transmission period, and the actual implementation may be selected according to the requirements, which is not specifically limited in this embodiment. For example, the specific implementation may be that there is data transmission at the first RX in the connection event 1 corresponding to the interval 1, and it can be considered that there is data transmission in the current transmission period, and it is determined that the next transmission period for the current transmission period is required. Listening; or, there is data transmission at the last RX in connection event 1 corresponding to interval 1, it is considered that there is data transmission in the current transmission period, and it is determined that the next transmission period of the current transmission period needs to be monitored; or If there is data transmission at any RX in the connection event 1 corresponding to the interval 1, it is considered that there is data transmission in the current transmission period, and it is determined that the next transmission period of the current transmission period needs to be monitored, which are specific implementation aspects. The embodiment of the present application is not limited herein.

It should be noted that, in the embodiment of the present application, the foregoing method embodiments may also be combined with each other to achieve the purpose of quickly transmitting data to the peer end. For example, the embodiment shown in FIG. 9 can be combined with the embodiment corresponding to FIG. 12, and when the number of data packets that the first device can send to the second device is determined in one transmission cycle, the second device is only determined. When there is data transmission on the last receiving occasion of the current transmission period (such as RX), the next transmission period of the current transmission period is monitored, and the MD included in the data packet is no longer judged whether it needs to be under the current transmission period. A transmission cycle is monitored.

It can be understood that, in order to implement the above functions, the first device and the second device include corresponding hardware structures and/or software modules for performing respective functions. Those skilled in the art will readily appreciate that the embodiments of the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the embodiments of the present application.

The embodiment of the present application further provides a first device and a second device that implement the foregoing method embodiments. Specifically, the first device and the second device may be divided into functional modules. For example, each function may be divided into Functional modules can also integrate two or more functions into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.

FIG. 13 is a schematic diagram showing a possible structure of the first device 1300 involved in the foregoing embodiment, where the first device 1300 may include: a sending unit 1301.

The sending unit 1301 is configured to support the first device 1300 to perform S501, S505, S901, S904 and/or other processes for the techniques described herein in the foregoing method embodiments.

In the embodiment of the present application, further, as shown in FIG. 13 , the first device 1300 may further include: a receiving unit 1302 and a determining unit 1303.

The receiving unit 1302 is configured to support the first device 1300 to perform the receiving operation in the foregoing method embodiments and/or other processes for the techniques described herein.

The determining unit 1303 is configured to support the electronic device to perform the determining operation in the above method embodiment and/or other processes for the techniques described herein.

All the related content of the steps involved in the foregoing method embodiments may be referred to the functional descriptions of the corresponding functional modules, and details are not described herein again.

Of course, the first device 1300 includes, but is not limited to, the unit modules enumerated above. For example, the first device 1300 may further include a display unit or the like for displaying content. The specific functions that can be implemented by the foregoing functional units include, but are not limited to, the functions corresponding to the method steps described in the foregoing examples. For detailed descriptions of other units of the first device 1300, reference may be made to the detailed description of the corresponding method steps. The application examples are not described herein.

In the case of employing an integrated unit, FIG. 14 shows a possible structural diagram of the first device 1400 involved in the above embodiment. The first device 1400 includes a processing module 1401, a storage module 1402, and a communication module 1403. The processing module 1401 is configured to control and manage the actions of the first device 1400. The storage module 1402 is configured to save program codes and data of the first device 1400. The communication module 1403 is configured to support communication between the first device 1400 and other network entities to implement data interaction, Internet access, and the like of the first device.

The processing module 1401 can be a processor or a controller. The communication module 1403 may be a transceiver, an RF circuit, a communication interface, or the like. The storage module 1402 can be a memory. The first device 1400 can also include a display module and an input module, which can be a screen or a display. The input module can be a touch screen, a voice input device, or a fingerprint sensor.

When the processing module 1401 is a processor, the communication module 1403 is an RF circuit, the storage module 1402 is a memory, and the display module is a touch screen, the first device 1400 provided by the embodiment of the present application may be the mobile phone shown in FIG. 4 . The communication module 1403 may include not only an RF circuit but also a WI-FI module, an NFC module, and a Bluetooth module. Communication modules such as RF circuits, NFC modules, WI-FI modules, and Bluetooth modules can be collectively referred to as communication interfaces. Wherein, the above processor, RF circuit, touch screen and memory can be coupled together by a bus.

FIG. 15 is a schematic diagram showing a possible structure of the second device 1500 involved in the foregoing embodiment. The second device 1500 may include: a receiving unit 1501 and a monitoring device. Unit 1502.

The receiving unit 1501 is configured to support the second device 1500 to perform S502, S902, and/or other processes for the techniques described herein in the foregoing method embodiments.

The monitoring unit 1502 is configured to support the second device 1500 to perform the operations of listening to the second transmission period in S503, S504 in the foregoing method embodiment, S903, and/or other processes for the techniques described herein.

In the embodiment of the present application, further, as shown in FIG. 15, the second device 1500 may further include: a determining unit 1503, a sending unit 1504, and a control unit 1505.

The determining unit 1503 is configured to support the second device 1500 to perform the operations of determining the second transmission period in S504 and/or other processes for the techniques described herein in the foregoing method embodiments.

The sending unit 1504 is configured to support the second device 1500 to perform S506, S905, and/or other processes for the techniques described herein in the foregoing method embodiments.

The control unit 1505 is configured to support the second device 1500 to perform the control operations in the above method embodiments and/or other processes for the techniques described herein.

Of course, the second device 1500 includes, but is not limited to, the unit modules enumerated above. For example, the second device 1500 may further include a display unit or the like for displaying content. The specific functions that can be implemented by the foregoing functional units include, but are not limited to, the functions corresponding to the method steps described in the foregoing examples. For detailed descriptions of other units of the second device 1500, reference may be made to the detailed description of the corresponding method steps. The application examples are not described herein.

In the case of employing an integrated unit, FIG. 16 shows a possible structural diagram of the second device 1600 involved in the above embodiment. The second device 1600 includes a processing module 1601, a storage module 1602, and a communication module 1603. The processing module 1601 is configured to control and manage the actions of the second device 1600. The storage module 1602 is configured to save program codes and data of the second device 1600. The communication module 1603 is configured to support communication between the second device 1600 and other network entities to implement data interaction, Internet access, and the like of the second device.

The processing module 1601 can be a processor or a controller. The communication module 1603 can be a transceiver, an RF circuit or a communication interface, or the like. The storage module 1602 can be a memory. The first device 1600 can also include a display module and an input module, which can be a screen or a display. The input module can be a touch screen, a voice input device, or a fingerprint sensor.

The communication module 1603 may include not only an RF circuit but also a WI-FI module, an NFC module, and a Bluetooth module. Communication modules such as RF circuits, NFC modules, WI-FI modules, and Bluetooth modules can be collectively referred to as communication interfaces. Wherein, the above processor, RF circuit, touch screen and memory can be coupled together by a bus.

Further embodiments of the present application also provide a computer storage medium comprising computer instructions that, when executed on a first device, cause the first device to perform as in Figure 5, Figure 8, Figure 9, or Figure 10. The associated method steps in any of the figures implement the data transfer method of the above embodiments.

Still other embodiments of the present application provide another computer storage medium comprising computer instructions that, when executed on a second device, cause the second device to perform as shown in FIG. 5, FIG. 8, FIG. 9, or FIG. The related method steps in any of the figures implement the data transmission method in the above embodiments.

Further embodiments of the present application provide a computer program product, when the computer program product is run on a computer, causing the computer to perform the relevant method steps in any of Figures 5, 8, 9, or 10. The data transmission method in the above embodiment.

Further embodiments of the present application provide a chip system, which may include: one or more processors, a memory, a communication bus; the memory is used to store one or more computer instructions, and the one or more processors and The memory is connected by the communication bus, and when the chip system is in operation, the one or more processors execute the one or more computer instructions stored in the memory, so that the chip system executes as shown in FIG. 5, FIG. 8, FIG. Or the related method steps in any of the figures of FIG. 10 implement the data transmission method in the above embodiment. The chip system can be an integrated circuit IC or an on-chip system SOC. The integrated circuit may be a general-purpose integrated circuit, a field programmable gate array FPGA, or an application specific integrated circuit ASIC.

The first device, the second device, the computer storage medium, the computer program product, or the chip system provided by the embodiments of the present application are all used to perform the corresponding method provided above. Therefore, the beneficial effects that can be achieved can be referred to. The beneficial effects in the corresponding methods provided above are not described herein again.

Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional modules is illustrated. In practical applications, the above functions can be allocated according to needs. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the system, the device and the unit described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided by the embodiments of the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the embodiments of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage. The medium includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) or processor to perform all or part of the steps of the methods described in the various embodiments of the present application. The foregoing storage medium includes: a flash memory, a mobile hard disk, a read only memory, a random access memory, a magnetic disk, or an optical disk, and the like, which can store program codes.

The foregoing is only a specific embodiment of the embodiments of the present application, but the scope of protection of the embodiments of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the embodiments of the present application should be covered. Within the scope of protection of the application examples. Therefore, the scope of protection of the embodiments of the present application is subject to the scope of protection of the claims.

Claims

A data transmission method is characterized in that the method is applied to a first device, and the first device is capable of transmitting a plurality of data packets to a second device in one transmission cycle, the method comprising:

The first device sends a data packet to the second device in a first transmission period, where the data packet includes an indication flag, where the indication flag is used to indicate whether the second device needs to be paired with the first The transmission period is monitored for at least one transmission period that is continuous in time.
The method according to claim 1, wherein before the sending, by the first device, the data packet to the second device in the first transmission period, the method further includes:

The first device sends a first message to the second device, where the first message is used to indicate that the first device supports the first feature, and the first feature is to support carrying the indication flag in the data packet. A feature that indicates whether a transmission cycle needs to be monitored;

The first device receives a second message from the second device, and the second message is used to indicate that the second device supports the first feature.
The method according to claim 1 or 2, wherein when the first device communicates with the second device by using a Bluetooth protocol, the method further includes:

The first device determines that the slave device latency connection Slave Latency is not zero.
A data transmission method, wherein the method is applied to a second device, and the second device is capable of receiving a plurality of data packets sent by the first device in a transmission cycle, where the method includes:

Receiving, by the second device, a data packet from the first device in a first transmission period, where the data packet includes an indication flag, where the indication flag is used to indicate whether the second device needs to A transmission period is monitored by at least one transmission period that is continuous in time;

When the indication flag is used to indicate that the second device needs to monitor at least one transmission period that is temporally consecutive with the first transmission period, the second device monitors and the first transmission period at time At least one transmission cycle in succession.
The method of claim 4, wherein the method further comprises:

When the indication flag is used to indicate that the second device does not need to monitor at least one transmission period that is temporally consecutive with the first transmission period, the second device determines the second transmission period, and monitors the The second transmission period is described.
The method according to claim 4 or 5, wherein the method further comprises:

The second device receives a first message from the first device, where the first message is used to indicate that the first device supports a first feature, and the first feature is to support carrying the indication in a data packet. A flag to indicate whether it is necessary to monitor the transmission period;

The second device sends a second message to the first device, where the second message is used to indicate that the second device supports the first feature.
A data transmission method is characterized in that the method is applied to a first device, and the first device is capable of transmitting a plurality of data packets to a second device in one transmission cycle, the method comprising:

When the number of data packets that the first device can send to the second device is determined in a transmission period, the first device sends the first data packet to the second device in the first transmission period;

The data packet has no data transmission after the first data packet in the first transmission period; the first data packet includes more data MD, and the MD is used to indicate that the first device is in the second transmission period. There is a data transmission; the second transmission period is continuous with the first transmission period in time.
The method according to claim 7, wherein when the number of data packets that the first device can send to the second device is determined in one transmission period, the first device is in the first Before sending the first data packet to the second device in a transmission period, the method further includes:

The first device sends a first message to the second device, where the first message is used to negotiate, with the second device, data that the first device can send to the second device in one transmission period. The number of packages;

The first device receives a second message from the second device, and the second message is used to confirm the number of data packets that the first device can send to the second device in one transmission period.
A data transmission method, wherein the method is applied to a second device, and the second device is capable of receiving a plurality of data packets sent by the first device in a transmission cycle, where the method includes:

When the number of data packets that the first device can send to the second device is determined in one transmission period, the second device receives the first data packet from the first device in the first transmission period; No data transmission after the first data packet in the first transmission period; the first data packet includes more data MD, the MD is used to indicate that the first device will be in the second transmission cycle Data transmission; the second transmission period and the first transmission period are continuous in time;

The second device listens to the second transmission period.
The method according to claim 9, wherein when the number of data packets that the first device can send to the second device is determined in one transmission cycle, the second device is in the Before receiving, by the first device, the first data packet is sent by the first device, the method further includes:

The second device receives a first message from the first device, where the first message is used to negotiate with the second device that the first device can send to the second device in one transmission cycle. The number of packets;

The second device sends a second message to the first device, where the second message is used to confirm the number of data packets that the first device can send to the second device in one transmission period.
A data receiving method, wherein the method is applied to a second device, and the second device is capable of receiving a plurality of data packets in one transmission cycle, the method comprising:

The second device monitors all transmission periods;

Receiving, by the second device, a header header portion of the data packet in a receiving occasion of a currently monitored transmission period;

When the value of the length field in the header portion is not 0, the second device determines that there is data transmission in the receiving occasion; and when the value of the more data MD field in the header portion is 0 The second device enters a dormant state after receiving the data in the receiving occasion, and when the value of the MD field in the header portion is 1, the second device continues to listen to the currently monitored The transmission period until the value of the MD field in the header portion of the received data packet is 0;

When the value of the length field in the header portion is 0, and the value of the MD field in the header portion is 0, the second device enters a sleep state; when the header portion When the value of the MD field is 1, the second device continues to listen to the currently monitored transmission period until the value of the MD field in the header portion of the received data packet is 0;

When the data packet is not received in the receiving opportunity, the second device enters a sleep state.
The method of claim 11 wherein said receiving opportunity is a first one of said currently listening transmission periods.
A data receiving method, wherein the method is applied to a second device, and the second device is capable of receiving a plurality of data packets in one transmission cycle, the method comprising:

Determining, by the second device, whether to monitor the second transmission period according to whether there is data transmission in the first transmission period; the first transmission period and the second transmission period are consecutive in time;

When the data transmission is performed in the first transmission period, the second device determines that the second transmission period needs to be monitored; when there is no data transmission in the first transmission period, the second device It is determined that the second transmission period does not need to be monitored.
A first device, wherein the first device is capable of transmitting a plurality of data packets to a second device in a transmission period, where the first device includes:

a sending unit, configured to send a data packet to the second device in a first transmission period, where the data packet includes an indication flag, where the indication flag is used to indicate whether the second device needs to be paired with the first The transmission period is monitored for at least one transmission period that is continuous in time.
The first device according to claim 14, wherein

The sending unit is further configured to send a first message to the second device, where the first message is used to indicate that the first device supports a first feature, and the first feature is to support carrying in a data packet. Denoting a flag to indicate whether a transmission period needs to be monitored;

The first device further includes:

a receiving unit, configured to receive a second message from the second device, where the second message is used to indicate that the second device supports the first feature.
The first device according to claim 14 or 15, wherein when the first device communicates with the second device by using a Bluetooth protocol, the first device further includes:

A determining unit for determining that the slave latency connection Slave Latency is not zero.
A second device, wherein the second device is capable of receiving a plurality of data packets sent by the first device in a transmission period, where the second device includes:

a receiving unit, configured to receive a data packet from the first device in a first transmission period, where the data packet includes an indication flag, where the indication flag is used to indicate whether the second device needs to be A transmission period is monitored by at least one transmission period that is continuous in time;

a monitoring unit, configured to: when the indication flag is used to indicate that the second device needs to monitor at least one transmission period that is consecutive in time with the first transmission period, the monitoring and the first transmission period are in time At least one transmission cycle in succession.
The second device according to claim 17, wherein the second device further comprises:

a determining unit, configured to determine a second transmission period when the indication flag is used to indicate that the second device does not need to monitor at least one transmission period that is consecutive in time with the first transmission period;

The monitoring unit is further configured to monitor the second transmission period.
A second device according to claim 17 or 18, wherein

The receiving unit is further configured to receive a first message from the first device, where the first message is used to indicate that the first device supports a first feature, and the first feature is supported to be carried in a data packet. The indication flag is a characteristic indicating whether a transmission period needs to be monitored;

The second device further includes:

And a sending unit, configured to send a second message to the first device, where the second message is used to indicate that the second device supports the first feature.
A first device, wherein the first device is capable of transmitting a plurality of data packets to a second device in a transmission period, where the first device includes:

a sending unit, configured to send the first data packet to the second device in the first transmission period when the number of data packets that the first device can send to the second device is determined in one transmission period;

The data packet has no data transmission after the first data packet in the first transmission period; the first data packet includes more data MD, and the MD is used to indicate that the first device is in the second transmission period. There is a data transmission; the second transmission period is continuous with the first transmission period in time.
A first device according to claim 20, wherein

The sending unit is further configured to send, to the second device, a first message, where the first message is used to negotiate with the second device, where the first device can be sent to the second device in one transmission cycle. The number of packets sent;

The first device further includes:

And a receiving unit, configured to receive a second message from the second device, where the second message is used to confirm the number of data packets that the first device can send to the second device in one transmission period.
A second device, wherein the second device is capable of receiving a plurality of data packets sent by the first device in a transmission period, where the second device includes:

a receiving unit, configured to receive a first data packet from the first device in a first transmission period when the number of data packets that the first device can send to the second device is determined in one transmission period; No data transmission after the first data packet in the first transmission period; the first data packet includes more data MD, the MD is used to indicate that the first device will be in the second transmission cycle Data transmission; the second transmission period and the first transmission period are continuous in time;

And a monitoring unit, configured to monitor the second transmission period.
A second device according to claim 22, wherein

The receiving unit is further configured to receive a first message from the first device, where the first message is used to negotiate with the second device, where the first device can be in the second The number of packets sent by the device;

The second device further includes:

And a sending unit, configured to send, to the first device, a second message, where the second message is used to confirm the number of data packets that the first device can send to the second device in one transmission period.
A second device, wherein the second device is capable of receiving a plurality of data packets in one transmission cycle, the second device comprising:

a monitoring unit for monitoring all transmission periods;

a receiving unit, configured to receive a header header portion of the data packet in a receiving occasion of a currently monitored transmission period;

a determining unit, configured to: when the value of the length field in the header portion is not 0, determine that there is data transmission in the receiving occasion; and the control unit is configured to use more data in the header portion of the MD field When the value is 0, the second device is controlled to enter a sleep state after the data reception is completed in the receiving timing, and the monitoring unit is further configured to: when the MD field in the header portion is 1 At the same time, continue to monitor the current listening transmission period until the value of the MD field in the header portion of the received data packet is 0;

The control unit is further configured to: when the value of the length field in the header portion is 0, and the value of the MD field in the header portion is 0, control the second device to enter a sleep state. The listening unit is further configured to continue to listen to the current listening transmission period when the value of the MD field in the header portion is 1, until the MD field in the header portion of the received data packet is taken The value is 0;

The control unit is further configured to control the second device to enter a sleep state when the data packet is not received in the receiving opportunity.
The second device according to claim 24, wherein said receiving opportunity is a first receiving occasion of said currently listening transmission period.
A second device, wherein the second device is capable of receiving a plurality of data packets in one transmission cycle, the second device comprising:

a determining unit, configured to determine, according to whether there is data transmission in the first transmission period, whether to monitor the second transmission period; the first transmission period and the second transmission period are consecutive in time;

When the data transmission is performed in the first transmission period, the second device determines that the second transmission period needs to be monitored; when there is no data transmission in the first transmission period, the second device It is determined that the second transmission period does not need to be monitored.
A first device, comprising: one or more processors and a memory; the one or more processors and the memory being connected by one or more communication buses; the memory One or more computer instructions are stored, the one or more computer instructions being configured to be executed by the one or more processors; the one or more computer instructions for performing the claims 1-3 or The data transmission method according to any one of items 7-8.
A second device, comprising: one or more processors and a memory; the one or more processors and the memory are connected by one or more communication buses; the memory One or more computer instructions are stored, the one or more computer instructions being configured to be executed by the one or more processors; the one or more computer instructions for performing as in claim 4-6 The data transmission method according to any one of claims 9 to 10, wherein the instruction is used to execute the data receiving method according to any one of claims 11 to 12 or 13.
A computer storage medium, comprising computer instructions, when said computer instructions are run on a first device, causing said first device to perform said one of claims 1-3 or 7-8 Data transfer method.
A computer storage medium, comprising computer instructions, when said computer instructions are run on a second device, causing said second device to perform said one of claims 4-6 or 9-10 The data transmission method, or the second device is caused to perform the data receiving method according to any one of claims 11-12 or 13.
A computer program product, characterized in that, when the computer program product is run on a computer, the computer is caused to perform the data transmission method according to any one of claims 1-3 or 7-8.
A computer program product, characterized in that, when the computer program product is run on a computer, the computer is caused to perform the data transmission method according to any one of claims 4-6 or 9-10, or A data receiving method according to any one of claims 11-12 or 13.
A chip system, comprising: one or more processors, a memory, a communication bus; the memory for storing one or more computer instructions, the one or more processors and The memory is coupled by the communication bus, the one or more processors executing the one or more computer instructions stored by the memory to cause the chip system to perform as claimed in claim 1 The data transmission method of any one of -3 or 7-8.
A chip system, comprising: one or more processors, a memory, a communication bus; the memory for storing one or more computer instructions, the one or more processors and The memory is coupled by the communication bus, the one or more processors executing the one or more computer instructions stored by the memory to cause the chip system to perform as claimed in claim 4 The data transmission method according to any one of claims 1-6, wherein the data transmission method according to any one of claims 11 to 12 or 13 is performed.