CN106559811A - Bluetooth data reception control method and device - Google Patents
Bluetooth data reception control method and device Download PDFInfo
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- CN106559811A CN106559811A CN201510627504.0A CN201510627504A CN106559811A CN 106559811 A CN106559811 A CN 106559811A CN 201510627504 A CN201510627504 A CN 201510627504A CN 106559811 A CN106559811 A CN 106559811A
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- bluetooth
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- power consumption
- consumption bluetooth
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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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- Computer Networks & Wireless Communication (AREA)
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Abstract
A kind of Bluetooth data reception control method and device, methods described include：When the synchronization link packet of classical bluetooth mode is received, from the packet header of currently received synchronization link packet, the slot length that current sync link data bag takes is obtained；When detecting in the slot length, when there is the connection event of low-power consumption bluetooth pattern, the current sync link data bag is abandoned, and switches to low-power consumption bluetooth pattern to receive the connection event of the low-power consumption bluetooth.Using methods described and device, the waste of time interval resource can be effectively prevented from.
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 technology
In agreement in bluetooth 4.0 and its afterwards, classical (Classic) bluetooth and low-power consumption (Low are contained
Energy, LE) bluetooth two parts.Low-power consumption bluetooth agreement is introduced in 4.0 agreement of bluetooth, in packet
Data length be 39 bytes (byte) to the maximum, using the speed rates of 1Mbps (MBPS).
Data length in classical bluetooth data packets is 1023 bytes to the maximum, transfer rate can for 1Mbps,
2Mbps and 3Mbps.
Classical bluetooth and low-power consumption bluetooth are operated in different patterns, carry out work using time-multiplexed mode
Make.In bimodulus scheduling process, in order to prevent low-power consumption bluetooth connection event (Connection Event,
CE) taken by the synchronization link packet of classical bluetooth, the CE of low-power consumption bluetooth can be predicted,
With Pre-handoff to low-power consumption bluetooth pattern.
However, there is the situation of the time slot wasting of resources in existing changing method.
The content of the invention
The problem that the embodiment of the present invention is solved is to avoid the waste of time interval resource.
To solve the above problems, the embodiment of the present invention provides a kind of Bluetooth data reception control method, including：
When the synchronization link packet of classical bluetooth mode is received, from currently received synchronization link number
In packet header according to bag, the slot length that current sync link data bag takes is obtained；
When detecting in the slot length, when there is the connection event of low-power consumption bluetooth, abandon described
Current sync link data bag, and switch to low-power consumption bluetooth pattern to receive the company of the low-power consumption bluetooth
Take over a job part.
Optionally, the Bluetooth data reception control method also includes：When detecting the current sync chain
In the slot length of circuit-switched data bag, when there is no the connection event of low-power consumption bluetooth pattern, institute is continued to
State the data in current sync link data bag.
Optionally, the form of the synchronization link packet include it is following any one：HV3、EV3、2-EV3.
Optionally, after low-power consumption bluetooth pattern is switched to, also include：Finishing receiving the low-power consumption
After the connection event of bluetooth, classical bluetooth mode is switched to, and receives again current sync link data bag
In all data.
The embodiment of the present invention additionally provides a kind of Bluetooth data reception control device, including：
Acquiring unit, for when the synchronization link packet of classical bluetooth mode is received, connecing from currently
In the packet header of the synchronization link packet of receipts, the slot length that current sync link data bag takes is obtained；
Switch control unit, for when detecting in the slot length, there is the company of low-power consumption bluetooth
Take over a job part when, abandon the current sync link data bag, and switch to low-power consumption bluetooth pattern to receive
The connection event of the low-power consumption bluetooth.
Optionally, the switch control unit is additionally operable to：When detecting the current sync link data bag
Slot length in, when there is no the connection event of low-power consumption bluetooth pattern, continue to described current same
Data in step link data bag.
Optionally, the form of the synchronization link packet include it is following any one：HV3、EV3、2-EV3.
Optionally, the switch control unit is additionally operable to：In the connection for finishing receiving the low-power consumption bluetooth
After event, classical bluetooth mode is switched to, and receives again all numbers in current sync link data bag
According to.
Compared with prior art, the technical scheme of the embodiment of the present invention has advantages below：
When operation being received in the current sync link data bag for carrying out classical bluetooth, can know that reception is same
Slot length shared by step link data bag.When the company that there is low-power consumption bluetooth in the slot length for taking
Take over a job part when, switch to low-power consumption bluetooth pattern and abandon current sync link data bag, such that it is able to keep away
Exempt from because of switching too early and the waste of caused time interval resource.
Description of the drawings
Fig. 1 is the working timing figure of low-power consumption bluetooth in existing Bluetooth protocol；
Fig. 2 is a kind of flow chart of the Bluetooth data reception control method in the embodiment of the present invention；
Fig. 3 is a kind of structural representation of the Bluetooth data reception control device in the embodiment of the present invention.
Specific embodiment
Classical bluetooth and low-power consumption bluetooth are operated in different patterns, carry out work using time-multiplexed mode
Make.In bimodulus scheduling process, in order to prevent low-power consumption bluetooth connection event (Connection Event,
CE) taken by the synchronization link packet of classical bluetooth, the CE of low-power consumption bluetooth can be predicted,
With Pre-handoff to low-power consumption bluetooth pattern.However, in most cases, the classical bluetooth for receiving
Synchronization link packet be gap bag in short-term, for example, the synchronization link packet for receiving is only 1 time slot bag,
Now, if too early bluetooth mode to be switched to low-power consumption bluetooth pattern, existing switching side can be caused
There is the situation of the time slot wasting of resources in method.
In embodiments of the present invention, when carrying out classical bluetooth current sync link data bag receive operation
When, the slot length received shared by synchronization link packet can be known.When in the slot length for taking
When there is the connection event of low-power consumption bluetooth, switch to low-power consumption bluetooth pattern and abandon current sync link
Packet, such that it is able to avoid because of switching too early and the waste of caused time interval resource.
It is understandable to enable the above-mentioned purpose of the embodiment of the present invention, feature and advantage to become apparent from, tie below
Close accompanying drawing to be described in detail the specific embodiment of the present invention.
Before being described to Bluetooth data reception control method provided in an embodiment of the present invention, to existing
Low-power consumption bluetooth transmitting procedure be briefly described.
With reference to Fig. 1, give in existing Bluetooth protocol, low-power consumption bluetooth from receive broadcast packet (advertising,
ADV) to the sequential chart for sending first packet.
Specify in existing Bluetooth protocol, a clock cycle is 312.5 μ s, with 2 × 312.5 μ s=625
μ s are a time slot.Local device sends packet to opposite equip. in even timeslots, connects in odd numbered slots
The packet that opposite equip. sends is received, it is right as a transmitting-receiving with 2 × 625 μ s=1.25ms, arrange TIM0
Correspondence transmission starts, and correspondence sends start time for 0 μ s, and TIM2 correspondence receptions start, and correspondence reception is opened
Moment beginning is 625 μ s.
In t0Moment, local device receive the ADV bags that opposite equip. sends；In t1Moment, local device
Finish receiving ADV bags.After one is spaced duration (T_IFS), in t2～t3Moment, to opposite end
Equipment sends connection request (connect_Req) protocol Data Unit (Protocol Data Unit, PDU).
After connection request PDU is sent completely, in t4～t5In moment, first packet is sent to opposite equip..
After interval duration (T_IFS) after first packet is sent completely, in t6～t7Reception pair
The reply data that end equipment sends.Afterwards, the cycle (ConnInterval) is sent every a default timing,
Timing carries out the transmission operation of packet, and timing sends the cycle in units of 1.25ms.
t3～t4The span at moment can be (1.25ms+transmitWindowOffset)～(1.25ms+
transmitWindowOffset+transmitWindowSize).TransmitWindowOffset is transmission window
Mouth offset parameter, transmitWindowSize is transmission window size, and the two can enter according to the actual requirements
Row setting.For example, transmitWindowOffset=5ms is set, sets transmitWindowSize=5ms.
The all of transmission of agreement is all carried out in TIM0, therefore, t4Moment is the TIM0 moment, due to timing
Integral multiple of the transmission cycle for 1.25ms, therefore, the first time data is activation in cycle is sent in each timing
Moment is TIM0, when so can ensure that classical mode sends and low-power consumption bluetooth pattern is sent in bluetooth
The difference of clock is 4 times of relation, it is hereby ensured that classical bluetooth mode and low-power consumption bluetooth pattern exist
TIM0 sends data.That is, classical bluetooth mode is identical with the sending time slots of low-power consumption bluetooth pattern.
A kind of Bluetooth data reception control method is embodiments provided, with reference to Fig. 1, below by way of tool
Body step is described in detail.
Step S201, when the current sync link data bag of classical bluetooth mode is received, connects from currently
In the packet header of the synchronization link packet of receipts, the slot length that current sync link data bag takes is obtained.
In actual applications, when bluetooth equipment is in classical bluetooth mode, opposite equip. can be received and is sent out
The synchronization link packet for sending.In the packet header of the synchronization link packet for receiving, can know current
The slot length shared by synchronization link packet for receiving, namely finish receiving the synchronization link number
According to the number of time slots taken needed for bag.
When bluetooth equipment is in classical bluetooth mode, the data form in synchronization link packet can be wrapped
Include the forms such as HV3, EV3,2-EV3.
After the slot length that current sync link data bag takes is known, can be with execution step S202.
Step S202, detects in the slot length, if there is the connection thing of low-power consumption bluetooth pattern
Part.
In embodiments of the present invention, after the slot length that current sync link data bag takes is known, can
To judge in this slot length, if there is the connection event of low-power consumption bluetooth.When there is low-power consumption
During the connection event of bluetooth mode, judge that the connection event of low-power consumption bluetooth pattern is occupied, can perform
Step S203；When there is no the connection event of low-power consumption bluetooth, current sync link data Bao Wei is judged
The time slot of the connection event of low-power consumption bluetooth pattern is taken, can be with execution step S204.
Step S203, abandons the current sync link data bag, and switch to low-power consumption bluetooth pattern with
Perform the connection event of the low-power consumption bluetooth.
Under normal circumstances, the priority that can set the connection event of low-power consumption bluetooth pattern is blue higher than classical
The priority of the synchronization link packet transmission of tooth pattern.
In embodiments of the present invention, the time slot that takes needed for current sync link data bag is received when detecting
Length is longer, when causing to occupy the time slot of the connection event occupancy for performing reception low-power consumption bluetooth pattern,
As the priority of low-power consumption bluetooth pattern is higher than the priority of classical bluetooth mode, therefore can switch to
Low-power consumption bluetooth pattern sends and receives the connection event of low-power consumption bluetooth to perform, and no longer receives current
The data of synchronization link packet, and the current sync link data bag having been received by before this is lost
Abandon.
For example, it is 5 to detect and receive the slot length taken needed for current sync link data bag, that is, need
5 receive time slot and can just complete the reception to current sync link data bag.Meanwhile, detect and connect at 3
After time receiving gap, there is the connection event request of low-power consumption bluetooth, that is to say, that receiving current sync chain
In the slot length that circuit-switched data bag takes, there is the connection event for sending and receiving low-power consumption bluetooth.
Now, if intactly receiving current sync link data bag, can take and send and receive low-power consumption
The time slot of the connection event of bluetooth.To send and receive the connection event of low-power consumption bluetooth, can be by bluetooth
Equipment switches to low-power consumption bluetooth pattern, terminates receiving the data in current sync link data bag, and will
The current sync link data bag having been received by before this is abandoned.
Step S204, continues to the data in current sync link data bag.
In embodiments of the present invention, receiving in the slot length that current sync link data bag takes, no
When there is the connection event of low-power consumption bluetooth pattern, judged before current sync data link packet,
There is no the connection event of low-power consumption bluetooth pattern, therefore bluetooth equipment need not switch to low-power consumption bluetooth mould
Formula, can continue executing with the reception operation of current sync link data bag, such that it is able to be completely received
All data in current sync link data bag.
In the prior art, to avoid the connection event of low-power consumption bluetooth by the multi-slot synchronization of classical bluetooth
Link data bag takes, when the connection event that there is low-power consumption bluetooth is predicted, can in advance by bluetooth
The mode of operation of equipment switches to low-power consumption bluetooth pattern from classical bluetooth mode.For example, it is blue in low-power consumption
Before 3 of the connection event of tooth receive time slot, bluetooth equipment is switched to into low-power consumption mould from classical mode
Formula.However, until 3 of the connection event of low-power consumption bluetooth connect after low-power consumption bluetooth pattern is switched to
Time receiving gap, bluetooth equipment are, in the connection event for waiting pending low-power consumption bluetooth, there is time interval resource wave
The phenomenon taken.
In embodiments of the present invention, when carrying out classical bluetooth current sync link data bag receive operation
When, the slot length according to shared by synchronization link packet judges whether to switch to low-power consumption bluetooth.
When classical bluetooth current sync link data bag shared by slot length and vacant low-power consumption bluetooth
During the reception time slot of connection event, the current sync link data bag of classical bluetooth can be completely received, from
And can avoid because of switching too early and the waste of caused time interval resource.
For example, when the connection event of low-power consumption bluetooth is detected the presence of, prior art be in advance 3 connect
Bluetooth equipment is switched to low-power consumption bluetooth pattern, i.e. prior art and wastes 3 reception time slots by time receiving gap.
And in embodiments of the present invention, the slot length for detecting reception current sync link data bag is connect for 1
Time receiving gap, then after complete reception current sync link data bag, then can switch to low-power consumption bluetooth mould
Method in formula, the i.e. embodiment of the present invention saves 1 reception time slot, such that it is able to avoid time interval resource
Waste.
In embodiments of the present invention, step S203 execution after the completion of, can also again by bluetooth equipment from
Low-power consumption bluetooth pattern switching is to classical bluetooth mode, and is received in current sync link data bag again
All data, to carry out normal Business Processing.
With reference to Fig. 3, a kind of Bluetooth data reception control device 30 in the embodiment of the present invention is given, wrapped
Include：Acquiring unit 301 and switch control unit 302, wherein：
Acquiring unit 301, for when the synchronization link packet of classical bluetooth mode is received, from current
In the packet header of the synchronization link packet of reception, the slot length that current sync link data bag takes is obtained；
Switch control unit 302, for when detecting in the slot length, there is low-power consumption bluetooth mould
During the connection event of formula, the current sync link data bag is abandoned, and switches to low-power consumption bluetooth pattern
To receive the connection event of the low-power consumption bluetooth.
In being embodied as, the switch control unit 302 can be also used for：It is described current when detecting
In the slot length of synchronization link packet, when there is no the connection event of low-power consumption bluetooth pattern, continue
Receive the data in the current sync link data bag.
In being embodied as, the form of the synchronization link packet include it is following any one：HV3、EV3、
2-EV3。
In being embodied as, the switch control unit 302 can be also used for：It is described low finishing receiving
After the connection event of power consumption bluetooth, classical bluetooth mode is switched to, and receives again current sync number of links
All data according to bag.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment
Suddenly can be by program to instruct the hardware of correlation to complete, the program can be stored in a computer can
Read in storage medium, storage medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, can make various changes or modifications, therefore the guarantor of the present invention
Shield scope should be defined by claim limited range.
Claims (8)
1. a kind of Bluetooth data reception control method, it is characterised in that include：
When the synchronization link packet of classical bluetooth mode is received, from currently received synchronization link packet
Packet header in, obtain the slot length that current sync link data bag takes；
When detecting in the slot length, when there is the connection event of low-power consumption bluetooth, abandon described current
Synchronization link packet, and switch to low-power consumption bluetooth pattern to perform the connection thing of the low-power consumption bluetooth
Part.
2. Bluetooth data reception control method as claimed in claim 1, it is characterised in that also include：Work as inspection
Measure in the slot length of the current sync link data bag, there is no the connection of low-power consumption bluetooth pattern
During event, the data in the current sync link data bag are continued to.
3. Bluetooth data reception control method as claimed in claim 2, it is characterised in that the synchronization link
The form of packet include it is following any one：HV3、EV3、2-EV3.
4. Bluetooth data reception control method as claimed in claim 1, it is characterised in that switching to low work(
After consumption bluetooth mode, also include：
After the connection event for finishing receiving the low-power consumption bluetooth, classical bluetooth mode is switched to, and is connect again
Receive all data in current sync link data bag.
5. a kind of Bluetooth data reception control device, it is characterised in that include：
Acquiring unit, for when the synchronization link packet of classical bluetooth mode is received, from currently received
In the packet header of synchronization link packet, the slot length that current sync link data bag takes is obtained；
Switch control unit, for when detecting in the slot length, there is the connection thing of low-power consumption bluetooth
During part, the current sync link data bag is abandoned, and it is described to receive to switch to low-power consumption bluetooth pattern
The connection event of low-power consumption bluetooth.
6. Bluetooth data reception control device as claimed in claim 5, it is characterised in that the switching control
Unit is additionally operable to：When in the slot length for detecting the current sync link data bag, there is no low work(
During the connection event of consumption bluetooth mode, the data in the current sync link data bag are continued to.
7. Bluetooth data reception control device as claimed in claim 6, it is characterised in that the synchronization link
The form of packet include it is following any one：HV3、EV3、2-EV3.
8. Bluetooth data reception control device as claimed in claim 5, it is characterised in that the switching control
Unit is additionally operable to：After the connection event for finishing receiving the low-power consumption bluetooth, classical bluetooth mould is switched to
Formula, and receive again all data in current sync link data bag.
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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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| CN106559811B CN106559811B (en) | 2019-11-22 |
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| CN111432435A (en) * | 2020-03-18 | 2020-07-17 | 南京英锐创电子科技有限公司 | Bluetooth receiving device, Bluetooth communication method and electronic equipment |
| CN113676881A (en) * | 2021-08-06 | 2021-11-19 | Oppo广东移动通信有限公司 | Device control method, device, electronic device and storage medium |
| CN114745339A (en) * | 2022-04-07 | 2022-07-12 | 潍柴动力股份有限公司 | Transmission method, transmission device and transmission system of multi-packet message data |
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| CN106559811B (en) | 2019-11-22 |
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