CN106559811B - Bluetooth data reception control method and device - Google Patents
Bluetooth data reception control method and device Download PDFInfo
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- CN106559811B CN106559811B CN201510627504.0A CN201510627504A CN106559811B CN 106559811 B CN106559811 B CN 106559811B CN 201510627504 A CN201510627504 A CN 201510627504A CN 106559811 B CN106559811 B CN 106559811B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- 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
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Abstract
A kind of Bluetooth data reception control method and device, which comprises when receiving the synchronization link data packet of classical bluetooth mode, from the packet header of currently received synchronization link data packet, obtain the slot length that current sync link data packet occupies；When detecting in the slot length, there are when the connection event of low-power consumption bluetooth mode, the current sync link data packet is abandoned, and switches to low-power consumption bluetooth mode to receive the connection event of the low-power consumption bluetooth.Using the method and device, the waste of time interval resource can be effectively avoided.
Description
Technical field
The present invention relates to Bluetooth communication field more particularly to a kind of Bluetooth data reception control method and device.
Background technique
In agreement in bluetooth 4.0 and its later, classical (Classic) bluetooth and low-power consumption (Low are contained
Energy, LE) bluetooth two parts.Low-power consumption bluetooth agreement introduces in 4.0 agreement of bluetooth, and the data length in data packet is maximum
For 39 bytes (byte), the speed rates of 1Mbps (megabits per second) are used.Data length in classical bluetooth data packets is maximum
For 1023 bytes, transmission rate can be 1Mbps, 2Mbps and 3Mbps.
Classical bluetooth and low-power consumption bluetooth work are worked in different modes using time-multiplexed mode.Double
During modulo scheduling, the connection event (Connection Event, CE) of low-power consumption bluetooth is by the same of classical bluetooth in order to prevent
It walks link data packet to occupy, the CE of low-power consumption bluetooth can be predicted, with Pre-handoff to low-power consumption bluetooth mode.
However, existing switching method the case where there are the time slot wastings of resources.
Summary of the invention
The embodiment of the present invention solves the problems, such as it is the waste for avoiding time interval resource.
To solve the above problems, the embodiment of the present invention provides a kind of Bluetooth data reception control method, comprising:
When receiving the synchronization link data packet of classical bluetooth mode, from the packet of currently received synchronization link data packet
In head, the slot length that current sync link data packet occupies is obtained；
When detecting in the slot length, there are when the connection event of low-power consumption bluetooth, the current sync is abandoned
Link data packet, and low-power consumption bluetooth mode is switched to receive the connection event of the low-power consumption bluetooth.
Optionally, the Bluetooth data reception control method further include: when detecting the current sync link data packet
Slot length in, there is no when the connection event of low-power consumption bluetooth mode, continue to the current sync link data packet
In data.
Optionally, the format of the synchronization link data packet includes following any: HV3, EV3,2-EV3.
Optionally, after switching to low-power consumption bluetooth mode, further includes: in the connection for finishing receiving the low-power consumption bluetooth
After event, classical bluetooth mode is switched to, and receives all data in current sync link data packet again.
The embodiment of the invention also provides a kind of Bluetooth data reception control devices, comprising:
Acquiring unit, for when receiving the synchronization link data packet of classical bluetooth mode, from currently received synchronization
In the packet header of link data packet, the slot length that current sync link data packet occupies is obtained；
Switch control unit, for when detecting in the slot length, there are when the connection event of low-power consumption bluetooth,
The current sync link data packet is abandoned, and switches to low-power consumption bluetooth mode to receive the connection thing of the low-power consumption bluetooth
Part.
Optionally, the switch control unit is also used to: when the time slot for detecting the current sync link data packet is long
In degree, there is no when the connection event of low-power consumption bluetooth mode, the data in the current sync link data packet are continued to.
Optionally, the format of the synchronization link data packet includes following any: HV3, EV3,2-EV3.
Optionally, the switch control unit is also used to: after the connection event for finishing receiving the low-power consumption bluetooth, being cut
Classical bluetooth mode is shifted to, and receives all data in current sync link data packet again.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantage that
When the current sync link data packet for carrying out classical bluetooth receives operation, it can know and receive synchronization link number
According to the occupied slot length of packet.When, there are when the connection event of low-power consumption bluetooth, switching to low function in the slot length of occupancy
Consumption bluetooth mode simultaneously abandons current sync link data packet, so as to avoid because of time interval resource wave caused by switching too early
Take.
Detailed description of the invention
Fig. 1 is the working timing figure of low-power consumption bluetooth in existing Bluetooth protocol；
Fig. 2 is the flow chart of one of embodiment of the present invention Bluetooth data reception control method；
Fig. 3 is the structural schematic diagram of one of embodiment of the present invention Bluetooth data reception control device.
Specific embodiment
Classical bluetooth and low-power consumption bluetooth work are worked in different modes using time-multiplexed mode.Double
During modulo scheduling, the connection event (Connection Event, CE) of low-power consumption bluetooth is by the same of classical bluetooth in order to prevent
It walks link data packet to occupy, the CE of low-power consumption bluetooth can be predicted, with Pre-handoff to low-power consumption bluetooth mode.So
And in most cases, the synchronization link data packet of the classical bluetooth received is gap packet in short-term, for example, what is received is same
Walking link data packet is only 1 time slot packet, at this point, will lead to if premature be switched to low-power consumption bluetooth mode for bluetooth mode
Existing switching method the case where there are the time slot wastings of resources.
It in embodiments of the present invention, can be with when the current sync link data packet for carrying out classical bluetooth receives operation
Know and receives the occupied slot length of synchronization link data packet.When the connection in the slot length of occupancy there are low-power consumption bluetooth
When event, switches to low-power consumption bluetooth mode and abandon current sync link data packet, so as to avoid due to switching too early
Caused time interval resource waste.
It is understandable to enable the above objects, features, and advantages of the embodiment of the present invention to become apparent, it is right with reference to the accompanying drawing
Specific embodiments of the present invention are described in detail.
Before Bluetooth data reception control method provided in an embodiment of the present invention is described, to existing low-power consumption
Bluetooth transmission process is briefly described.
Referring to Fig.1, give in existing Bluetooth protocol, low-power consumption bluetooth from receive broadcast packet (advertising, ADV)
To the timing diagram for sending first data packet.
It is provided in existing Bluetooth protocol, a clock cycle is 312.5 μ s, with 2 × 312.5 μ s=625 μ s for one
A time slot.Local device sends data packet to opposite equip. in even timeslots, receives the number that opposite equip. is sent in odd numbered slots
It is a transmitting-receiving pair with 2 × 625 μ s=1.25ms according to packet, arranges corresponding send of TIM0 and starts, it is corresponding to send start time as 0 μ
Corresponding receive of s, TIM2 starts, corresponding to receive start time as 625 μ s.
In t0Moment, local device receive the ADV packet that opposite equip. is sent；In t1Moment, local device finish receiving ADV
Packet.After an interval duration (T_IFS), in t2~t3Moment sends connection request (connect_ to opposite equip.
Req) protocol Data Unit (Protocol Data Unit, PDU).After connection request PDU is sent completely, in t4~t5Moment
It is interior, first data packet is sent to opposite equip..An interval duration (T_IFS) after first data packet is sent completely
Afterwards, in t6~t7The reply data that reception opposite equip. is sent.Later, preset the period is regularly sent every one
(ConnInterval), timing carries out the transmission operation of data packet, regularly sends the period as unit of 1.25ms.
t3~t4The value range at moment can be (1.25ms+transmitWindowOffset)~(1.25ms+
transmitWindowOffset+transmitWindowSize).TransmitWindowOffset is transmission window offset ginseng
Number, transmitWindowSize are transmission window size, and the two can be set according to actual needs.For example, setting
TransmitWindowOffset=5ms sets transmitWindowSize=5ms.
Arrange all transmissions all to carry out in TIM0, therefore, t4Moment is the TIM0 moment, is due to regularly sending the period
Therefore the integral multiple of 1.25ms is TIM0 in each first time data sending instant for regularly sending the period, can protect in this way
Card classical mode sends the relationship that the difference for being sent in bluetooth clock with low-power consumption bluetooth mode is 4 times, and it is hereby ensured that warps
Allusion quotation bluetooth mode and low-power consumption bluetooth mode send data in TIM0.That is, classical bluetooth mode and low-power consumption bluetooth
The sending time slots of mode are identical.
The embodiment of the invention provides a kind of Bluetooth data reception control methods, referring to Fig.1, below by way of specific steps into
Row is described in detail.
Step S201, when receiving the current sync link data packet of classical bluetooth mode, from currently received synchronization
In the packet header of link data packet, the slot length that current sync link data packet occupies is obtained.
In practical applications, when bluetooth equipment is in classical bluetooth mode, it can receive the synchronization of opposite equip. transmission
Link data packet.In the packet header of the synchronization link data packet received, the synchronization link number being currently being received can be known
According to the occupied slot length of packet, namely finish receiving the number of time slots occupied needed for the synchronization link data packet.
When bluetooth equipment is in classical bluetooth mode, the data format in synchronization link data packet may include HV3,
The formats such as EV3,2-EV3.
After knowing the slot length that current sync link data packet occupies, step S202 can be executed.
Step S202 is detected in the slot length, if there are the connection events of low-power consumption bluetooth mode.
In embodiments of the present invention, after knowing the slot length that current sync link data packet occupies, it can be determined that
In this slot length, if there are the connection events of low-power consumption bluetooth.When there are the connection event of low-power consumption bluetooth mode,
Determine that the connection event of low-power consumption bluetooth mode is occupied, step S203 can be executed；When the connection that low-power consumption bluetooth is not present
When event, determines the time slot of the connection event of the vacant low-power consumption bluetooth mode of current sync link data packet, step can be executed
Rapid S204.
Step S203 abandons the current sync link data packet, and it is described to execute to switch to low-power consumption bluetooth mode
The connection event of low-power consumption bluetooth.
Under normal conditions, the priority that can set the connection event of low-power consumption bluetooth mode is higher than classical bluetooth mode
The priority of synchronization link data packet transmission.
In embodiments of the present invention, when detect receive current sync link data packet needed for occupancy slot length compared with
It is long, when causing to occupy the time slot for executing the connection event occupancy for receiving low-power consumption bluetooth mode, due to low-power consumption bluetooth mode
Priority be higher than the priority of classical bluetooth mode, therefore low-power consumption bluetooth mode can be switched to and sent and received with executing
The connection event of low-power consumption bluetooth, and the data of current sync link data packet are no longer received, and will be received before this
The current sync link data packet arrived abandons.
For example, detecting that the slot length occupied needed for receiving current sync link data packet is 5, that is, need 5 receptions
Time slot could complete the reception to current sync link data packet.Meanwhile detecting after 3 reception time slots, there are low-power consumption
The connection event of bluetooth is requested, that is to say, that is receiving in the slot length that current sync link data packet occupies, there is transmission
With the connection event for receiving low-power consumption bluetooth.
At this point, the company for sending and receiving low-power consumption bluetooth can be occupied if completely receiving current sync link data packet
It takes over a job the time slot of part.For the connection event for sending and receiving low-power consumption bluetooth, bluetooth equipment can be switched into low-power consumption bluetooth
Mode terminates the data received in current sync link data packet, and the current sync link that will be had been received before this
Data packet discarding.
Step S204 continues to the data in current sync link data packet.
In embodiments of the present invention, it is receiving in the slot length that current sync link data packet occupies, low function is not present
When consuming the connection event of bluetooth mode, determine before current sync data link data packet, low-power consumption bluetooth mode is not present
Connection event, therefore bluetooth equipment can continue to execute current sync link data without switching to low-power consumption bluetooth mode
The reception of packet operates, so as to all data being completely received in current sync link data packet.
In the prior art, to avoid multi-slot synchronization link data of the connection event of low-power consumption bluetooth by classical bluetooth
Packet occupies, can be in advance by the operating mode of bluetooth equipment from classics when predicting the connection event there are low-power consumption bluetooth
Bluetooth mode switches to low-power consumption bluetooth mode.For example, before 3 reception time slots of the connection event of low-power consumption bluetooth, it will
Bluetooth equipment switches to low-power consumption mode from classical mode.However, until low-power consumption is blue after switching to low-power consumption bluetooth mode
3 reception time slots of the connection event of tooth, bluetooth equipment is only in the connection event for waiting pending low-power consumption bluetooth, and there are time slots
The phenomenon that wasting of resources.
In embodiments of the present invention, when the current sync link data packet for carrying out classical bluetooth receives operation, according to
The occupied slot length of synchronization link data packet, to determine whether switching to low-power consumption bluetooth.It is current same when classical bluetooth
It, can be complete when walking the occupied slot length of link data packet and the reception time slot of the connection event of vacant low-power consumption bluetooth
The current sync link data packet of classical bluetooth is received, so as to avoid because time interval resource wastes caused by switching too early.
For example, the prior art is that 3 reception time slots will be blue in advance in the connection event for detecting the presence of low-power consumption bluetooth
Tooth equipment switches to low-power consumption bluetooth mode, i.e. the prior art wastes 3 reception time slots.And in embodiments of the present invention, inspection
Measuring and receiving the slot length of current sync link data packet is 1 reception time slot, then can completely receive current sync chain
After circuit-switched data packet, then switching to low-power consumption bluetooth mode, i.e., the method in the embodiment of the present invention saves 1 reception time slot, from
And it can be to avoid the waste of time interval resource.
It in embodiments of the present invention, can also be again blue from low-power consumption by bluetooth equipment after the completion of step S203 is executed
Tooth pattern switching receives all data in current sync link data packet to classical bluetooth mode again, normal to carry out
Business processing.
Referring to Fig. 3, one of embodiment of the present invention Bluetooth data reception control device 30 is given, comprising: obtain single
Member 301 and switch control unit 302, in which:
Acquiring unit 301, for when receiving the synchronization link data packet of classical bluetooth mode, from currently received same
In the packet header for walking link data packet, the slot length that current sync link data packet occupies is obtained；
Switch control unit 302, for when detecting in the slot length, there are the connections of low-power consumption bluetooth mode
When event, the current sync link data packet is abandoned, and switches to low-power consumption bluetooth mode to receive the low-power consumption bluetooth
Connection event.
In specific implementation, the switch control unit 302 can be also used for: when detecting the current sync number of links
According in the slot length of packet, there is no when the connection event of low-power consumption bluetooth mode, the current sync number of links is continued to
According to the data in packet.
In specific implementation, the format of the synchronization link data packet includes following any: HV3, EV3,2-EV3.
In specific implementation, the switch control unit 302 can be also used for: finish receiving the low-power consumption bluetooth
After connection event, classical bluetooth mode is switched to, and receives all data in current sync link data packet again.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (8)
1. a kind of Bluetooth data reception control method characterized by comprising
When receiving the synchronization link data packet of classical bluetooth mode, from the packet header of currently received synchronization link data packet
In, obtain the slot length that current sync link data packet occupies；
When detecting in the slot length, there are when the connection event of low-power consumption bluetooth, the current sync link is abandoned
Data packet, and low-power consumption bluetooth mode is switched to execute the connection event of the low-power consumption bluetooth.
2. Bluetooth data reception control method as described in claim 1, which is characterized in that further include: when detecting described work as
In the slot length of preamble link data packet, there is no when the connection event of low-power consumption bluetooth mode, continue to described work as
Data in preamble link data packet.
3. Bluetooth data reception control method as claimed in claim 2, which is characterized in that the lattice of the synchronization link data packet
Formula includes following any: HV3, EV3,2-EV3.
4. Bluetooth data reception control method as described in claim 1, which is characterized in that switching to low-power consumption bluetooth mode
Afterwards, further includes:
After the connection event for finishing receiving the low-power consumption bluetooth, classical bluetooth mode is switched to, and is received again current same
Walk all data in link data packet.
5. a kind of Bluetooth data reception control device characterized by comprising
Acquiring unit, for when receiving the synchronization link data packet of classical bluetooth mode, from currently received synchronization link
In the packet header of data packet, the slot length that current sync link data packet occupies is obtained；
Switch control unit, for there are when the connection event of low-power consumption bluetooth, abandoning when detecting in the slot length
The current sync link data packet, and low-power consumption bluetooth mode is switched to receive the connection event of the low-power consumption bluetooth.
6. Bluetooth data reception control device as claimed in claim 5, which is characterized in that the switch control unit is also used
In: in the slot length for detecting the current sync link data packet, there is no the connection events of low-power consumption bluetooth mode
When, continue to the data in the current sync link data packet.
7. Bluetooth data reception control device as claimed in claim 6, which is characterized in that the lattice of the synchronization link data packet
Formula includes following any: HV3, EV3,2-EV3.
8. Bluetooth data reception control device as claimed in claim 5, which is characterized in that the switch control unit is also used
In: after the connection event for finishing receiving the low-power consumption bluetooth, classical bluetooth mode is switched to, and receive current sync again
All data in link data packet.
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| CN201510627504.0A CN106559811B (en) | 2015-09-28 | 2015-09-28 | Bluetooth data reception control method and device |
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| CN201510627504.0A CN106559811B (en) | 2015-09-28 | 2015-09-28 | Bluetooth data reception control method and device |
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| CN106559811A CN106559811A (en) | 2017-04-05 |
| CN106559811B true CN106559811B (en) | 2019-11-22 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111432435B (en) * | 2020-03-18 | 2022-07-15 | 南京英锐创电子科技有限公司 | Bluetooth receiving device, Bluetooth communication method and electronic equipment |
| CN113676881B (en) * | 2021-08-06 | 2024-05-07 | Oppo广东移动通信有限公司 | Equipment control method, device, electronic equipment and storage medium |
| CN114745339B (en) * | 2022-04-07 | 2023-10-20 | 潍柴动力股份有限公司 | Multi-packet message data transmission method, transmission device and transmission system |
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| US7496062B2 (en) * | 2001-01-03 | 2009-02-24 | At&T Corp. | Combined simulcasting and dedicated services in a wireless communication system |
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