CN113709055B - BLE-based communication method, BLE-based communication device, BLE-based communication equipment, BLE-based communication system and BLE-based storage medium - Google Patents
BLE-based communication method, BLE-based communication device, BLE-based communication equipment, BLE-based communication system and BLE-based storage medium Download PDFInfo
- Publication number
- CN113709055B CN113709055B CN202010432203.3A CN202010432203A CN113709055B CN 113709055 B CN113709055 B CN 113709055B CN 202010432203 A CN202010432203 A CN 202010432203A CN 113709055 B CN113709055 B CN 113709055B
- Authority
- CN
- China
- Prior art keywords
- data
- length
- target
- field
- wearable device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000004891 communication Methods 0.000 title claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims abstract description 94
- 230000004044 response Effects 0.000 claims description 24
- 238000012508 change request Methods 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 description 18
- 238000005516 engineering process Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000005236 sound signal Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/36—Flow control; Congestion control by determining packet size, e.g. maximum transfer unit [MTU]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
Abstract
The present disclosure provides a BLE-based communication method, apparatus, device, system, and storage medium, the method comprising: determining a protocol data unit with the maximum data length supported by a protocol data unit of opposite terminal equipment, so that the opposite terminal equipment carries out packetization processing on target data to be sent based on the protocol data unit with the maximum data length, and generating one or more data packetization; receiving the one or more data packets sent by the opposite terminal equipment; and recombining based on the data sub-packets to obtain the target data, and processing the target data. The embodiment of the disclosure is beneficial to improving the data transmission efficiency.
Description
Technical Field
The disclosure relates to the technical field of bluetooth communication, and in particular relates to a communication method, device, equipment, system and computer readable storage medium based on BLE.
Background
Wearable devices (such as watches, bracelets, armbands, etc.) often need to perform data transmission in the process of interacting with corresponding control ends (such as mobile phones, tablets, etc.), one transmission mode is based on bluetooth technology, bluetooth low energy (Bluetooth Low Energy, BLE) is currently one of the hottest technologies in wearable technologies, bluetooth low energy is intended for emerging applications in the fields of medical care, sports fitness, beacons, security, home entertainment, etc., and compared with classical bluetooth, bluetooth low energy is intended to significantly reduce power consumption and cost while maintaining the same communication range. However, the existing BLE technology has a problem of low transmission efficiency.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a BLE-based communication method, apparatus, device, system, and computer-readable storage medium.
According to a first aspect of an embodiment of the present disclosure, there is provided a BLE-based communication method, including:
determining a protocol data unit with the maximum data length supported by a protocol data unit of opposite terminal equipment, so that the opposite terminal equipment carries out packetization processing on target data to be sent based on the protocol data unit with the maximum data length, and generating one or more data packetization;
receiving the one or more data packets sent by the opposite terminal equipment;
and recombining based on the data sub-packets to obtain the target data, and processing the target data.
According to a second aspect of embodiments of the present disclosure, there is provided a BLE-based communication apparatus applied to a wearable device, including:
the length determining module is used for determining a protocol data unit with the maximum data length supported by the protocol data unit of the opposite terminal equipment, so that the opposite terminal equipment carries out packetization processing on target data to be sent based on the protocol data unit with the maximum data length, and one or more data packetization is generated;
A data packet receiving module, configured to receive the one or more data packets sent by the peer device;
and the target data processing module is used for recombining the data packets based on the data packets to obtain the target data and processing the target data. According to a third aspect of embodiments of the present disclosure, there is provided a wearable device comprising:
a processor;
a memory for storing processor-executable instructions;
wherein,
the processor is configured to perform the operations of the method described above when the executable instructions are invoked.
According to a fourth aspect of embodiments of the present disclosure, there is provided a communication system, including the wearable device of the third aspect and a peer device;
the wearable device is used for determining the maximum data length supported by the protocol data unit of the opposite terminal device and feeding back the maximum data length to the application program on the opposite terminal device;
the application program on the opposite terminal device is used for performing packetizing processing on target data to be sent based on the protocol data unit with the maximum data length, and generating one or more data packetizes to be sent to the wearable device;
the wearable device is further used for recombining based on the data subpackets to obtain the target data and processing the target data.
According to a fifth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by one or more processors, causes the processors to perform the operations in the method as described above.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
in the method, after connection is established with the opposite terminal equipment, the maximum data length supported by the protocol data unit of the opposite terminal equipment is determined, so that the opposite terminal equipment carries out packetization processing on target data to be sent based on the protocol data unit with the maximum data length to generate one or more data packetization, and thus, the data is encapsulated on the basis of the maximum data length supported by the protocol data unit of the opposite terminal equipment, the opposite terminal equipment can be guaranteed to transmit as much data as possible each time, and the transmission efficiency is improved.
In the method, the maximum data length supported by the protocol data unit of the opposite terminal equipment is queried through the link layer characteristic query request, so that the opposite terminal equipment encapsulates data based on the maximum data length, and the improvement of the data transmission efficiency is facilitated.
In the disclosure, when the maximum data length is determined to be the first length, a data length change request may be sent to the peer device, so that the peer device changes the data length applied by its protocol data unit from a second length to the first length, where the second length is smaller than the first length, so that the peer device can package data based on the maximum data length, which is beneficial to improving data transmission efficiency.
In the present disclosure, the data packet includes a control field; the control field is used for describing one or more services to be provided by the wearable device this time, the service pointed by the control field is determined by the opposite terminal device from a pre-stored service set, and the service set comprises all services which can be provided by the wearable device, and a process of scanning and discovering the services by the opposite terminal device is not needed, so that the communication efficiency is improved.
In the present disclosure, the control field includes a transmission status flag field and a target feature field; the transmission state flag field is used for describing the data transmission state of the data packet, so that the ordered transmission of the data packet is ensured; the target feature field is used for describing one or more target features corresponding to one or more services to be provided by the wearable device at this time, so that the wearable device can be positioned to the corresponding services through the target features.
In the disclosure, the target feature field includes an enumeration value for describing the target feature, so as to avoid the target feature from occupying too many bytes, thereby being beneficial to reducing the data transmission amount and improving the transmission efficiency.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a block diagram illustrating a link layer packet structure defined for the bluetooth 4.0/4.1 protocol according to an exemplary embodiment of the present disclosure.
Fig. 2 is a block diagram illustrating a link layer packet structure defined for the bluetooth 4.2 protocol according to an exemplary embodiment of the present disclosure.
Fig. 3 is a flow chart illustrating a BLE-based communication method according to an exemplary embodiment of the present disclosure.
Fig. 4 is a block diagram of a BLE-based communication device according to an exemplary embodiment of the present disclosure.
Fig. 5 is an architecture diagram of an electronic device according to an exemplary embodiment of the present disclosure.
Fig. 6 is a block diagram of a communication system according to an exemplary embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
Wearable devices (such as watches, bracelets, armbands, etc.) often need to perform data transmission in the process of interacting with corresponding control ends (such as mobile phones, tablet and other electronic devices), one transmission mode is based on bluetooth technology, bluetooth low energy (Bluetooth Low Energy, BLE) is currently one of the hottest technologies in wearable technologies, bluetooth low energy is intended for emerging applications in the fields of healthcare, sports fitness, beacons, security, home entertainment, etc., and bluetooth low energy is intended to significantly reduce power consumption and cost while maintaining the same communication range as classical bluetooth. The payload of the protocol data unit (PDU, protocol Data Uint) supported by BLE technology at present includes 27 bytes and 251 bytes, but data transmission is usually performed by default with 27 bytes, which causes a problem of low data transmission efficiency.
As an example, referring to fig. 1, a link layer packet structure defined for the bluetooth 4.0/4.1 protocol has a data length of 41 bytes, and there are a preamble (preamble) of 1 byte, an Access Address (Access Address) of 4 bytes, a Cyclic Redundancy Check (CRC) of 3 bytes, and a protocol data unit (PDU, protocol Data Uint) of 33 bytes, where the 33 bytes of protocol data unit includes a Header (Header) of 2 bytes, a Payload (Payload) of 27 bytes, and an optional Message Integrity Check (MIC) of 4 bytes, and the Payload (Payload) of 27 bytes further includes an ATT data Header of 3 bytes and an L2CAP data Header (not shown in the figure) of 4 bytes, and the maximum transmission unit of the application layer is 20 bytes, that is, when the Payload of the protocol data unit (PDU, protocol Data Uint) is 27 bytes, the application program of the control end can use 20 bytes, which causes a problem of low data transmission efficiency.
Referring to fig. 2, for the link layer packet structure defined by the bluetooth 4.2 protocol, the bluetooth 4.2 protocol and the updated version support a data length extension function (DLE: data Length Extension) with a data length of 265 bytes, a preamble (preamble) of 1 byte, an Access Address (Access Address) of 4 bytes, a Cyclic Redundancy Check (CRC) of 3 bytes, and a protocol data unit (PDU, protocol Data Uint) of 257 bytes, wherein the 257 bytes of the protocol data unit includes a Header (Header) of 2 bytes, a Payload (Payload) of 251 bytes, and an optional Message Integrity Check (MIC) of 4 bytes, and wherein the Payload (Payload) of 251 bytes further includes an ATT data Header of 3 bytes and an L2CAP data Header of 4 bytes, the maximum transmission unit (ATT Payload) of the application layer is 244 bytes, i.e., the application program 244 bytes can be used by the control end when the Payload of the protocol data unit (PDU, protocol Data Uint) is 251 bytes.
In view of the foregoing, embodiments of the present disclosure provide a BLE-based communication method, apparatus, wearable device, system, and computer-readable storage medium, where the wearable device may determine a maximum data length supported by a protocol data unit of an opposite device before performing data transmission, so that the opposite device encapsulates target data to be sent based on the protocol data unit of the maximum data length, which is beneficial to improving data transmission efficiency.
Referring to fig. 3, a communication method based on BLE provided by an embodiment of the present disclosure may be applied to a wearable device, where the wearable device includes but is not limited to a watch, a bracelet, an armband, a bracelet, or the like, and the wearable device may communicate with a peer device through BLE bluetooth technology. The method comprises the following steps:
in step S301, a maximum data length supported by a protocol data unit of a peer device is determined, so that the peer device performs packetizing processing on target data to be sent based on the protocol data unit of the maximum data length, and generates one or more data packetizes.
In step S302, the one or more data packets sent by the peer device are received.
In step S303, the target data is obtained by reassembling based on the data packetization, and the target data is processed.
In an embodiment, the data length of the protocol data unit of the peer device is information about the link layer, belongs to system bottom layer information, and considering that the operating system (such as an android system, an IOS system, etc.) of the peer device does not open the bottom layer information to the application layer, an application program installed on the peer device cannot directly know the bottom layer information of the local device, while the BLE4.2 protocol allows the master device (peer device) to negotiate the data length with the slave device (wearable device) due to the bluetooth standard protocol involved in the process of establishing the bluetooth connection with the peer device. Thus, the maximum data length supported by the protocol data units of the peer device may be determined by the wearable device.
In one implementation, the wearable device may send a link layer feature query request to an operating system of the peer device, and the operating system of the peer device returns a link layer feature response to the wearable device in response to the link layer feature query request, where the link layer feature response is used to describe a maximum data length supported by a protocol data unit of the peer device, so that the wearable device may determine the maximum data length supported by the protocol data unit of the peer device. The wearable device may then feed back information about the maximum data length to an application of the peer device, such that the peer device may encapsulate target data to be sent based on the maximum data length.
Further, if the maximum data length is a first length, the wearable device may send a data length change request to the peer device, where the data length change request is used to trigger the peer device to change a data length applied by a protocol data unit of the peer device from a second length to the first length; the second length is less than the first length. In this embodiment, by changing the data length applied to the protocol data unit of the peer device, the peer device can transmit data with the maximum data length supported by the peer device, thereby being beneficial to improving the data transmission efficiency.
In one example, the data length (payload amount) of the protocol data unit (PDU, protocol Data Uint) supported by the current BLE technology includes 27 bytes and 251 bytes, and if the determined maximum data length (maximum payload amount) is 251 bytes, the wearable device may send a data length change request to the peer device in consideration of data transmission in 27 bytes by default, and the operating system of the peer device changes the data length applied by its protocol data unit from 27 bytes to 251 bytes in response to the data length change request. If the determined maximum data length (maximum payload amount) is 27 bytes, indicating that the peer device does not support 251 bytes, then 27 bytes are still used for data transmission.
In an exemplary embodiment, after the peer device establishes a connection with the wearable device, the wearable device may determine whether the peer device supports a data length extension function through a new feature (feature request) provided by BLE 4.2: the wearable device may send an ll_featurereq command to the operating system of the peer device to obtain the bluetooth characteristics of the peer device, where the operating system of the peer device returns an ll_featurersp response after receiving the ll_featurereq command, and the wearable device parses a LE Data Length Extension flag bit in the ll_featurersp response, if the flag bit is 0, it indicates that the peer device defaults to a maximum payload amount of 27 bytes, and if the flag bit is 1, it indicates that the maximum payload amount supported by the peer device is 251 bytes.
If the maximum payload supported by the opposite terminal device is determined to be 27 bytes, the wearable device sends a notification message to an application program on the opposite terminal device, wherein the notification message comprises the maximum payload supported by the opposite terminal device, so that the application program can package target data to be sent based on the maximum payload.
If the maximum payload supported by the peer device is determined to be 251 bytes, considering that whether the peer device supports the maximum payload is 251 bytes or not, the payload is usually set to be 27 bytes by default, so the wearable device is required to send a change request to the operating system of the peer device: the wearable equipment needs to send a data length change request with an operation code of Exchange MTU Request to an operating system of the opposite terminal equipment, and the operating system of the opposite terminal equipment adjusts the setting of a protocol data unit based on the data length change request and returns a response message with a response code of Exchange MTU Response to the wearable equipment; further, the wearable device also needs to send a request for changing the transmission data LENGTH with the operation code of ll_length_req to the operating system of the opposite terminal device, the operating system of the opposite terminal device adjusts the transmission data LENGTH setting of the link layer based on the request for changing the transmission data LENGTH, and returns a response message with the response code of ll_length_rsp to the wearable device, so far, the payload of the protocol data unit between the opposite terminal device and the wearable device is changed from 27 bytes to 251 bytes; after determining the maximum payload supported by the opposite terminal device, the wearable device sends a notification message to an application program on the opposite terminal device, wherein the notification message comprises the maximum payload supported by the opposite terminal device, so that the application program can package target data to be sent based on the maximum payload, and the transmission efficiency is improved.
After determining the maximum data length supported by the opposite terminal device, the application program of the opposite terminal device can perform packetizing processing on target data to be sent based on the protocol data unit with the maximum data length, generate one or more data packetizes, and send the one or more data packetizes to the wearable device.
Considering that the wearable device in the related art broadcasts related information of the provided services (such as an aerobic heart rate service, a battery power service, an alarm service and the like), if the opposite terminal device wants to use a certain service of the wearable device, the opposite terminal device needs to scan and find the service, then the service provided by the wearable device can be used, and the operation is complex and needs to consume larger time cost; based on this, in the embodiment of the present disclosure, a service set is pre-stored on the peer device, where the service set includes all services that can be provided by the wearable device; as an implementation manner, the peer device may obtain the service set from a server of the wearable device; the opposite terminal equipment can determine one or more services to be provided by the wearable equipment from the pre-stored service set, and then package relevant information of the services into the data sub-packet; as an implementation manner, the data packet includes a control field, where the control field is used to describe one or more services to be provided by the wearable device at this time; according to the method and the device, the information related to the service is directly packaged in the data sub-packet, so that the wearable device can determine the service to be provided for the time by reading the control field in the data sub-packet, the process of scanning and finding the service by the opposite terminal device is not needed, the time for scanning the service is shortened, and the communication efficiency is improved.
Further, the control field includes a target feature field, where the target feature field is used to describe one or more target features corresponding to one or more services to be provided by the wearable device at this time; it should be understood that, in all data packets corresponding to the target data, the target feature fields are the same, so as to ensure accuracy of data transmission and operability of the target data, so that the wearable device can process the target data based on the service pointed by the target feature, without a process of scanning the opposite terminal device and finding the service, thereby reducing the time of scanning the service, avoiding tedious work brought by understanding a plurality of target features after the opposite terminal device obtains the plurality of target features by scanning the service, and being beneficial to improving communication efficiency.
Considering that when the wearable device is required to provide a plurality of services, the target feature field includes a plurality of target features, a larger data volume may be generated, so as to affect the transmission efficiency of the target data, therefore, an enumeration value corresponding to each target feature may be set, and the target feature field may include an enumeration value of the target feature, so that the data volume about the target feature to be transmitted may be effectively reduced, and the transmission efficiency of the target data may be improved.
In an embodiment, in a case that the data size of the target data exceeds the maximum data length supported by the protocol data unit, the peer device cannot send the target data all at once, and needs to packetize the target data to generate a plurality of data packets and send the data packets to the wearable device, but in this way, the wearable device may not determine from which received data packet starts or ends to be the target data, so that the peer device cannot be provided with services. Based on this, the control field may further include a transmission status flag field, where the transmission status flag field is used to describe a data transmission status of the data packet, so that the wearable device may determine whether to start receiving the target data or whether to finish receiving the target data based on the transmission status flag bit. In one example, the data transmission state includes: the data transmission is started, the data transmission is middle, the data transmission is finished and the target data has only one data packet, so that the ordered transmission of the data packets is ensured.
In an embodiment, when the data size of the target data exceeds the maximum data length supported by the protocol data unit, the peer device cannot send the target data at one time, and needs to perform packetization processing on the target data to generate a plurality of data packetization to send the data packetization to the wearable device, where the data packetization includes a sequence field, and the sequence field is used to describe an arrangement sequence of the data packetization, so that the wearable device can reconstruct the data packetization based on the arrangement sequence pointed by the sequence field after receiving the one or more data packetization sent by the peer device, so as to obtain the target data, and further process the target data based on the service pointed by the control field.
The target data is used for describing a read operation, a write operation, a change operation or a query operation of the determined service, and the like, the target data may be specifically determined based on an actual situation, for example, the wearable device provides a battery power service, after the peer device establishes a bluetooth connection with the wearable device, if a user wants to query the battery power of the wearable device, an application program of the peer device may generate corresponding target data based on a requirement of the user, then the application program performs a packetizing process on the target data based on a protocol data unit with the maximum data length and the service corresponding to the target data, generates one or more data packetizes including a control field and a sequence field, and transmits the data packetizes to the wearable device, and the wearable device may reassemble the data packetizes based on an arrangement sequence pointed by the sequence field after receiving the one or more data packetizes sent by the peer device, so as to obtain the target data, and further process the target data based on the service pointed by the control field.
In an embodiment, the peer device may divide a specified byte as the control field and the sequence field based on a maximum data length supported by the protocol data unit, and in one example, the maximum data length (maximum payload amount) of the protocol data unit is 251 bytes, where the maximum transmission unit of the application layer is 244 bytes: 1 byte may be divided into 244 bytes as a control field and 1 byte may be a sequence field, where the sequence field may be a number from 0 to 255, indicating the number of the data packet, for example, counting from 0, and at most 255, and counting from 0 again when exceeding 255.
Wherein the control field includes a transmission status flag field, the transmission status flag field is used to describe a data transmission status of the data packet, so as to ensure ordered transmission of the data packet, and in one example, the control field is 1 byte for an exemplary illustration: as the transmission status flag field, 2bits may be divided, and the data transmission status may be, for example, 0 for the start of data transmission, 1 for the end of data transmission, 2 for the end of data transmission, and 3 for only one packet of the target data.
Moreover, the service provided by the wearable device can be represented by the corresponding target feature, the operation of the service is represented as the operation process of the target feature, the application program on the opposite terminal device can prestore a service set, the service set comprises the corresponding relation between the service and the target feature, the control field also comprises a target feature field, and the target feature field is used for describing one or more target features corresponding to one or more services to be provided by the wearable device at this time; wherein, since the one or more services corresponding to the target data are determined, the target feature fields in all data packets corresponding to the target data are the same, so as to ensure the accuracy of data transmission and the operability of the target data.
In order to further reduce the data transmission amount, the service set may include a correspondence relationship between a service, a target feature, and an enumeration value thereof, where the target feature field may be an enumeration value corresponding to the target feature, in an example, the service may store an enumeration value of "aerobic heart rate lower limit (service) -org.blue. As the target feature field, 6bits may be divided.
It should be noted that, if the data transmission state of the data packet is that the data transmission is finished or the target data has only one data packet, the data packet further includes a check field for checking the target data, so as to realize the check of the target field and ensure the correctness of the data transmission; in one example, the maximum data length (maximum payload amount) of the protocol data unit is 251 bytes, where the maximum transmission unit of the application layer is 244 bytes: 1 byte may be divided among 244 bytes as a check field.
As an example, the maximum data length (maximum payload amount) of the protocol data unit is 251 bytes, where the maximum transmission unit of the application layer is 244 bytes: of 244 bytes, 1 byte is used as a control field (2 bits is used as a transmission status flag field, 6bits is used as a target feature field), 1 byte is used as a sequence field, if the data transmission status of the data packet is that the data transmission is finished or the target data has only one data packet, 1 byte is also used as a check field, assuming that the data length of the target data is 1024 bytes, the target feature field is 2, and the target data needs to be divided into 5 (1024/(244-2) = 4.231) data packets:
1 st data packet: the transmission status flag field is the beginning of data transmission, the target feature field is 2, the sequence field is 0, and the remaining 222 (224-2) bytes are the target data;
data packetization 2: in the data transmission, the transmission state flag field is 2, the target feature field is 1, and the remaining 222 (224-2) bytes are target data;
3 rd data packetization: in the data transmission, the transmission state flag field is 2, the target feature field is 2, the sequence field is 2, and the remaining 222 (224-2) bytes are target data;
4 th data packet: in the data transmission, the transmission state flag field is 2, the target feature field is 3, and the remaining 222 (224-2) bytes are target data;
data packetization 5: the transmission status flag field is the end of data transmission, the target feature field is 2, the sequence field is 4, the last 1 byte of the sequence field is a check field (CRC, calculated based on 1024 bytes of target data), and the remaining 56 (1024-242×4=56) bytes are the target data.
As another example, assuming that the data length of the target data is 200 bytes and the target feature field is 3, the target data needs to be divided into 1 (200/(244-2) =0.826) data packets:
1 st data packet: the transmission status flag field is that the target data only has one data packet, the target feature field is 3, the sequence field is 0, the last 1 byte of the sequence field is a check field (CRC), and the remaining 200 bytes are the target data.
And the opposite terminal equipment sends one or more data sub-packets to the wearable equipment after generating the data sub-packets, and the wearable equipment reorganizes the data sub-packets based on the sequence field and processes the target data according to the service pointed by the control field after receiving the one or more data sub-packets.
In an embodiment, if the transmission status flag field in the data packet received by the peer device is the beginning of data transmission, the peer device records the target feature field and the sequence field in the data packet, in one example, if the sequence field is set to 0-255, if the sequence field in the data packet is not 0, which indicates that the data packet is wrong, the wearable device needs to send a retransmission request to the peer device to request the peer device to retransmit the correct data packet.
In an embodiment, if the transmission status flag field in the data packet received by the peer device is in data transmission, it is determined whether the target feature field in the data packet is consistent with the target feature field in the data packet in which the transmission status flag field is the beginning of data transmission, if so, it indicates that the data packet is correct, and if not, it indicates that the data packet is incorrect, the wearable device needs to send a retransmission request to the peer device to request the peer device to retransmit the correct data packet.
And the opposite terminal device may arrange the sequence fields based on the data packets, and if the serial numbers of the sequence fields are found to be discontinuous, the data packets are considered to be lost, and the wearable device needs to send a retransmission request to the opposite terminal device to request the opposite terminal device to retransmit the correct data packets.
In an embodiment, if the transmission status flag field in the data packet received by the peer device is data end, determining whether the target feature field in the data packet is consistent with the target feature field in the data packet in which the transmission status flag field is data start, if not, indicating that the data packet is wrong, the wearable device needs to send a retransmission request to the peer device to request the peer device to retransmit the correct data packet; if the data packets are consistent, indicating that the data packets are correct, then comparing a check field (CRC) calculated by the wearable device according to the received actual length of the target data with a check field (CRC) in the data packets, and if the data packets are matched, processing the recombined target data by the wearable device according to the service pointed by the control field (namely, the characteristic value of the service); if the data CRC is not matched, the data CRC is considered to be abnormal, and the wearable device needs to perform abnormality analysis processing, such as sending a retransmission request to the opposite terminal device to request the opposite terminal device to retransmit the correct data subpacket.
In an embodiment, if the transmission status flag field in the data packet received by the peer device is that there is only one data packet in the target data, and the sequence field in the data packet is number 0 (in the case that the sequence field is set to 0-255), the peer device compares the check field (CRC) calculated by the peer device according to the actual length of the received target data with the check field (CRC) in the data packet, and if the transmission status flag field is matched with the check field, the wearable device analyzes the reassembled target data according to the service pointed by the control field (i.e., the feature value of the service); if the data CRC is not matched, the data CRC is considered to be abnormal, and the wearable device needs to perform abnormality analysis processing, such as sending a retransmission request to the opposite terminal device to request the opposite terminal device to retransmit the correct data subpacket.
Accordingly, referring to fig. 4, an embodiment of the present disclosure further provides a BLE-based communication device, which is characterized in that the communication device is applied to a wearable device, and includes:
the length determining module 401 is configured to determine a protocol data unit with a maximum data length supported by a protocol data unit of a peer device, so that the peer device performs packetization processing on target data to be sent based on the protocol data unit with the maximum data length, and generates one or more data packetization.
A data packet receiving module 402, configured to receive the one or more data packets sent by the peer device.
And the target data processing module 403 is configured to reconstruct the data packet based on the data packet to obtain the target data, and process the target data.
Optionally, the length determining module includes:
and the query request sending submodule is used for sending a link layer characteristic query request to the opposite terminal equipment.
A response obtaining sub-module, configured to obtain a link layer feature response returned by the peer device in response to the link layer feature query request; the link layer characteristics are responsive to a protocol data unit that describes a maximum data length supported by a protocol data unit of the peer device.
Optionally, after the response acquisition submodule, the method further includes: a change request sending submodule, configured to send a data length change request to the peer device if the maximum data length is the first length; the data length changing request is used for triggering the opposite terminal equipment to change the data length applied by the protocol data unit from the second length to the first length; the second length is less than the first length.
Optionally, the data packet includes a control field; the control field is used to describe one or more services to be provided by the wearable device at this time.
The target data processing module includes: and processing the target data according to the service pointed by the control field.
Optionally, the service pointed to by the control field is determined by the peer device from a pre-stored set of services; the set of services includes all services that the wearable device is capable of providing.
Optionally, the control field includes a transmission status flag field and a target feature field.
The transmission status flag field is used to describe a data transmission status of the data packet.
The target feature field is used for describing one or more target features corresponding to one or more services to be provided by the wearable device at this time.
Optionally, the target feature field includes an enumerated value for describing the target feature.
Optionally, the data packet includes a sequence field.
The sequence field is used for describing the arrangement order of the data packets.
The target data processing module further includes: and reorganizing the data subpackets based on the arrangement sequence pointed by the sequence field to obtain the target data.
The implementation process of the functions and roles of each module in the above device is specifically shown in the implementation process in the above method, and will not be described herein again.
The apparatus embodiments described above are merely illustrative, wherein the modules illustrated as separate components may or may not be physically separate, and the components shown as modules may or may not be physical, i.e., may be located in one place, or may be distributed over a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the objectives of the disclosed solution. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Accordingly, the present disclosure also provides a wearable device, comprising:
A processor;
a memory for storing the processor-executable instructions;
wherein,
the processor is configured to perform the operations of the method described above when the executable instructions are invoked.
Fig. 5 is a schematic structural diagram of a wearable device for BLE-based communication device application, according to an exemplary embodiment.
As shown in fig. 5, a wearable device 500 is shown according to an exemplary embodiment, and the wearable device 500 may be a control device with bluetooth function, such as a wristwatch, a bracelet, an armband, or a finger ring, a foot ring, etc.
Referring to fig. 5, wearable device 500 may include one or more of the following components: a processing component 501, a memory 502, a power component 503, a multimedia component 504, an audio component 505, an input/output (I/O) interface 506, a sensor component 507, and a communication component 508.
The processing component 501 generally controls overall operation of the wearable device 500, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 501 may include one or more processors 509 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 501 can include one or more modules that facilitate interactions between the processing component 501 and other components. For example, the processing component 501 may include a multimedia module to facilitate interaction between the multimedia component 504 and the processing component 501.
The memory 502 is configured to store various types of data to support operation at the wearable device 500. Examples of such data include instructions for any application or method operating on wearable device 500, contact data, phonebook data, messages, pictures, videos, and the like. The memory 502 may be implemented by any type of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
The power supply component 503 provides power to the various components of the wearable device 500. The power components 503 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the wearable device 500.
The multimedia component 504 includes a screen between the wearable device 500 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 504 includes a front-facing camera and/or a rear-facing camera. When the wearable device 500 is in an operational mode, such as a shooting mode or a video mode, the front-facing camera and/or the rear-facing camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
The audio component 505 is configured to output and/or input audio signals. For example, the audio component 505 includes a Microphone (MIC) configured to receive external audio signals when the wearable device 500 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 502 or transmitted via the 55 communication component 508. In some embodiments, the audio component 505 further comprises a speaker for outputting audio signals.
The I/O interface 506 provides an interface between the processing component 501 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 507 includes one or more sensors for providing status assessment of various aspects of the wearable device 500. For example, the sensor assembly 507 may detect an on/off state of the wearable device 500, a relative positioning of the components, such as a display and keypad of the wearable device 500, the sensor assembly 507 may also detect a change in position of the wearable device 500 or a component of the wearable device 500, the presence or absence of a user's contact with the wearable device 500, an orientation or acceleration/deceleration of the wearable device 500, and a change in temperature of the wearable device 500. The sensor assembly 507 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 507 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 507 may further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, a heart rate signal sensor, an electrocardiogram sensor, a fingerprint sensor, or a temperature sensor.
The communication component 508 is configured to facilitate wired or wireless communication between the wearable device 500 and other devices. The wearable device 500 may access a wireless network based on a communication standard, such as WiFi,3G or 4G, or a combination thereof. In one exemplary embodiment, the communication component 508 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the 55 communication component 508 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, bluetooth Low Energy (BLE) technology, and other technologies.
In an exemplary embodiment, the wearable device 500 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the above-described methods.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as a memory 502 including instructions executable by the processor 509 of the wearable device 500 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
Wherein the instructions in the storage medium, when executed by the processor 509, enable the wearable device 500 to perform the aforementioned method.
A computer readable storage medium having stored thereon a computer program which, when executed by one or more processors, causes the processors to perform the above-described method.
Accordingly, referring to fig. 6, the disclosure further provides a communication system, including the wearable device 500 and the peer device 600.
The wearable device 500 is configured to determine a maximum data length supported by a protocol data unit of the peer device 600 and feed back to an application on the peer device 600.
The application program on the peer device 600 is configured to perform packetizing processing on the target data to be sent based on the protocol data unit with the maximum data length, and generate one or more data packetizes to be sent to the wearable device 500.
The wearable device 500 is further configured to reassemble the target data based on the data packets, and process the target data.
The implementation process of the above system is specifically shown in the implementation process of the above method, and will not be described herein.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
The foregoing description of the preferred embodiments of the present disclosure is not intended to limit the disclosure, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present disclosure.
Claims (15)
1. A BLE-based communication method, applied to a wearable device, comprising:
determining the maximum data length supported by a protocol data unit of opposite terminal equipment, and sending a notification message to an application program in the opposite terminal equipment, wherein the notification message comprises the maximum data length supported by the protocol data unit of the opposite terminal equipment, so that the application program in the opposite terminal equipment carries out packetization processing on target data to be sent based on the maximum data length, and one or more data packetization is generated;
receiving the one or more data packets sent by the opposite terminal device, wherein each data packet in the one or more data packets comprises a control field, the control field comprises a transmission state mark field and a target feature field, the transmission state mark field is used for indicating the data transmission state of the target data, the target feature field comprises an enumeration value of a target feature corresponding to a service to be provided by the wearable device at this time, and the values of the target feature fields contained in the one or more data packets are the same;
And recombining based on the data sub-packets to obtain the target data, and processing the target data.
2. The method of claim 1, wherein determining the maximum data length supported by the protocol data unit of the peer device comprises:
sending a link layer characteristic query request to the opposite terminal equipment;
acquiring a link layer characteristic response returned by the opposite terminal equipment in response to the link layer characteristic query request; the link layer characteristic response is used to describe a maximum data length supported by the protocol data unit of the peer device.
3. The method of claim 2, further comprising, after said obtaining a link layer characteristic response returned by said peer device in response to said link layer characteristic query request:
if the maximum data length is the first length, a data length change request is sent to the opposite terminal equipment; the data length changing request is used for triggering the opposite terminal equipment to change the data length applied by the protocol data unit from the second length to the first length; the second length is less than the first length.
4. The method of claim 1, wherein the data packet comprises a control field; the control field is used for describing one or more services to be provided by the wearable device at this time;
The processing the target data comprises the following steps:
and processing the target data according to the service pointed by the control field.
5. The method of claim 4, wherein the service to which the control field is directed is determined by the peer device from a pre-stored set of services; the set of services includes all services that the wearable device is capable of providing.
6. The method of claim 1, wherein the data packet comprises a sequence field; the sequence field is used for describing the arrangement sequence of the data sub-packets;
the reorganizing based on the data packetization to obtain the target data includes:
and reorganizing the data subpackets based on the arrangement sequence pointed by the sequence field to obtain the target data.
7. A BLE-based communication device, characterized by being applied to a wearable apparatus, comprising:
a length determining module, configured to determine a protocol data unit with a maximum data length supported by a protocol data unit of a peer device, and send a notification message to an application program in the peer device, where the notification message includes the maximum data length supported by the protocol data unit of the peer device, so that the application program in the peer device performs packetization processing on target data to be sent based on the protocol data unit with the maximum data length, and generates one or more data packetizations;
A data packetization receiving module, configured to receive the one or more data packetization sent by the peer device, where each of the one or more data packetization includes a control field, where the control field includes a transmission status flag field and a target feature field, where the transmission status flag field is used to indicate a data transmission status of the target data, and the target feature field includes an enumeration value of a target feature corresponding to a service to be provided by the wearable device at this time, and a numerical value of the target feature field included in the one or more data packetization is the same;
and the target data processing module is used for recombining the data packets based on the data packets to obtain the target data and processing the target data.
8. The apparatus of claim 7, wherein the length determination module comprises:
a query request sending sub-module, configured to send a link layer feature query request to the peer device;
a response obtaining sub-module, configured to obtain a link layer feature response returned by the peer device in response to the link layer feature query request; the link layer characteristics are responsive to a protocol data unit that describes a maximum data length supported by a protocol data unit of the peer device.
9. The apparatus of claim 8, further comprising, after the response acquisition sub-module:
a change request sending submodule, configured to send a data length change request to the peer device if the maximum data length is the first length; the data length changing request is used for triggering the opposite terminal equipment to change the data length applied by the protocol data unit from the second length to the first length; the second length is less than the first length.
10. The apparatus of claim 7, wherein the data packet comprises a control field; the control field is used for describing one or more services to be provided by the wearable device at this time;
the target data processing module includes: and processing the target data according to the service pointed by the control field.
11. The apparatus of claim 10, wherein the service to which the control field is directed is determined by the peer device from a pre-stored set of services; the set of services includes all services that the wearable device is capable of providing.
12. The apparatus of claim 7, wherein the data packet comprises a sequence field;
The sequence field is used for describing the arrangement sequence of the data sub-packets;
the target data processing module further includes: and reorganizing the data subpackets based on the arrangement sequence pointed by the sequence field to obtain the target data.
13. A wearable device, comprising:
a processor;
a memory for storing the processor-executable instructions;
wherein,
the processor being configured to perform the method of any of the preceding claims 1 to 6 when the executable instructions are invoked.
14. A communication system comprising the wearable device of claim 13 and a peer device;
the wearable device is used for determining the maximum data length supported by the protocol data unit of the opposite terminal device and sending a notification message to an application program in the opposite terminal device, wherein the notification message comprises the maximum data length supported by the protocol data unit of the opposite terminal device;
the application program on the opposite terminal device is used for performing packetizing processing on target data to be sent based on the maximum data length, and generating one or more data packetizes to be sent to the wearable device; each data packet in the one or more data packets comprises a control field, the control field comprises a transmission state flag field and a target feature field, the transmission state flag field is used for indicating the data transmission state of the target data, the target feature field comprises an enumeration value of a target feature corresponding to a service to be provided by the wearable device this time, and the values of the target feature fields contained in the one or more data packets are the same;
The wearable device is further used for recombining based on the data subpackets to obtain the target data and processing the target data.
15. A computer-readable storage medium, having stored thereon a computer program which, when executed by one or more processors, causes the processors to perform the method of any of claims 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010432203.3A CN113709055B (en) | 2020-05-20 | 2020-05-20 | BLE-based communication method, BLE-based communication device, BLE-based communication equipment, BLE-based communication system and BLE-based storage medium |
| PCT/CN2021/092233 WO2021233134A1 (en) | 2020-05-20 | 2021-05-07 | Ble-based communication method and apparatus, device, system, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010432203.3A CN113709055B (en) | 2020-05-20 | 2020-05-20 | BLE-based communication method, BLE-based communication device, BLE-based communication equipment, BLE-based communication system and BLE-based storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113709055A CN113709055A (en) | 2021-11-26 |
| CN113709055B true CN113709055B (en) | 2023-12-05 |
Family
ID=78645785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010432203.3A Active CN113709055B (en) | 2020-05-20 | 2020-05-20 | BLE-based communication method, BLE-based communication device, BLE-based communication equipment, BLE-based communication system and BLE-based storage medium |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113709055B (en) |
| WO (1) | WO2021233134A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115296996B (en) * | 2022-03-29 | 2024-03-15 | 杭州中天微系统有限公司 | Data transmission method, air upgrading method, network equipment and network system |
| CN116321291B (en) * | 2023-05-12 | 2023-08-08 | 北京大唐高鸿数据网络技术有限公司 | Control method, device and terminal for sending service data |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016090539A1 (en) * | 2014-12-08 | 2016-06-16 | 华为技术有限公司 | Data transmission method and device |
| CN106063299A (en) * | 2014-01-15 | 2016-10-26 | 豪夫迈·罗氏有限公司 | Low energy wireless communication systems and methods for medical devices |
| CN106102058A (en) * | 2016-05-30 | 2016-11-09 | 飞天诚信科技股份有限公司 | A kind of identity identifying method and device |
| CN106105310A (en) * | 2014-03-12 | 2016-11-09 | Lg 电子株式会社 | Wireless communication system adjusts the method and apparatus of message transmission rate |
| CN107346981A (en) * | 2017-05-16 | 2017-11-14 | 北京数科技有限公司 | Data transmission method for uplink, method of reseptance and data sending device, reception device |
| CN111083161A (en) * | 2019-12-27 | 2020-04-28 | 中消云（北京）物联网科技研究院有限公司 | Data transmission processing method and device and Internet of things equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180234358A1 (en) * | 2017-02-10 | 2018-08-16 | Qualcomm Incorporated | Systems and methods for packet acquisition |
-
2020
- 2020-05-20 CN CN202010432203.3A patent/CN113709055B/en active Active
-
2021
- 2021-05-07 WO PCT/CN2021/092233 patent/WO2021233134A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106063299A (en) * | 2014-01-15 | 2016-10-26 | 豪夫迈·罗氏有限公司 | Low energy wireless communication systems and methods for medical devices |
| CN106105310A (en) * | 2014-03-12 | 2016-11-09 | Lg 电子株式会社 | Wireless communication system adjusts the method and apparatus of message transmission rate |
| WO2016090539A1 (en) * | 2014-12-08 | 2016-06-16 | 华为技术有限公司 | Data transmission method and device |
| CN106102058A (en) * | 2016-05-30 | 2016-11-09 | 飞天诚信科技股份有限公司 | A kind of identity identifying method and device |
| CN107346981A (en) * | 2017-05-16 | 2017-11-14 | 北京数科技有限公司 | Data transmission method for uplink, method of reseptance and data sending device, reception device |
| CN111083161A (en) * | 2019-12-27 | 2020-04-28 | 中消云（北京）物联网科技研究院有限公司 | Data transmission processing method and device and Internet of things equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021233134A1 (en) | 2021-11-25 |
| CN113709055A (en) | 2021-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108831448B (en) | Method and device for controlling intelligent equipment through voice and storage medium | |
| EP3148161B1 (en) | Message transmission method, message reception method and apparatus, computer program and recording medium | |
| KR102480856B1 (en) | Method and apparatus for communicating streaming data in a bluetooth based communication system | |
| KR102221021B1 (en) | Electronic device and method for processing packet in internet protocol based network | |
| CN109565717B (en) | Method and device for configuring bandwidth part | |
| KR102462427B1 (en) | Method for integrating management of message and electronic device for the same | |
| CN113709055B (en) | BLE-based communication method, BLE-based communication device, BLE-based communication equipment, BLE-based communication system and BLE-based storage medium | |
| EP3051772B1 (en) | Method and apparatus for accessing network | |
| EP3917116B1 (en) | Detecting maximum transmission unit value | |
| WO2022160993A1 (en) | Method and device for multimedia data sharing | |
| KR20150057309A (en) | Broadcasting cheannel information sharing method of electronic apparatus and electronic appparatus thereof | |
| KR20150084284A (en) | Status message service providing method of electronic apparatus and electronic apparatus thereof | |
| US11800435B2 (en) | System message transmission method and device, and system message reception method and device | |
| US11394495B2 (en) | Hybrid automatic repeat request (HARQ) feedback method and device and data receiving apparatus | |
| KR20150068136A (en) | Contents download method of electronic apparatus and electronic appparatus thereof | |
| CN114428655B (en) | Remote control method of equipment, terminal equipment, system and storage medium | |
| EP3633897A1 (en) | Data transmission method and apparatus | |
| US10437981B2 (en) | Electronic system and device unlock method of the same | |
| US11297626B2 (en) | Information indication method and apparatus, base station and user equipment | |
| CN108401482B (en) | Data transmission method and device | |
| US20240064706A1 (en) | Transmission method, transmission apparatus, and storage medium | |
| CN112544043B (en) | Receiving state feedback method and device | |
| CN113191792B (en) | Task processing method, device, electronic equipment, storage medium and program product | |
| CN114073025B (en) | Method and device for determining value of duration time domain | |
| CN113940019B (en) | Uplink control information sending method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |