CN108738002B - Bluetooth Scatternet scheduling method - Google Patents
Bluetooth Scatternet scheduling method Download PDFInfo
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- CN108738002B CN108738002B CN201810374591.7A CN201810374591A CN108738002B CN 108738002 B CN108738002 B CN 108738002B CN 201810374591 A CN201810374591 A CN 201810374591A CN 108738002 B CN108738002 B CN 108738002B
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- bluetooth
- piconet
- bluetooth device
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
- H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
Abstract
The invention discloses a Bluetooth Scatternet scheduling method, which is characterized in that after setting a profile scene of a Bluetooth device in a Piconet participating in the Bluetooth device, the priority level of the Bluetooth device for performing the profile scene in each Piconet participating in the Bluetooth device is also set, and the priority level of a process initiated by a Bluetooth device processing user is set to be at least higher than the priority level of the Bluetooth device for performing the profile scene in one Piconet participating in the Bluetooth device. After receiving the process initiated by the user, the Bluetooth device firstly judges the priority of the process initiated by the user in the next Piconet and the priority of the process initiated by the user processed by the Bluetooth device before switching the Piconet to perform the process scene each time, if the priority of the process initiated by the user is higher, the process initiated by the user is processed, otherwise, the Bluetooth device is switched to the next Piconet to perform the process scene. Therefore, the invention can improve the efficiency of Bluetooth device pairing and connection among piconets in the scatternet, thereby improving the satisfaction degree of users.
Description
Technical Field
The invention relates to the technical field of Bluetooth communication, in particular to a Bluetooth Scatternet scheduling method.
Background
Currently, Piconet refers to a micro network that uses bluetooth technology to form bluetooth devices in a small area. Meanwhile, a plurality of Piconets can be interconnected to form a scattering network (Scatternet). The piconet is established by connecting a bluetooth device as a master device to a plurality of other bluetooth devices as slave devices, and is formed by 8 bluetooth devices at most. In a piconet, only one pair of bluetooth devices works at the same time, if the inquiry, page, inquiry scan or page scan processes of other bluetooth devices happen at the same time, and the processes are carried out after the work of several bluetooth devices in the previous piconet is completed.
Moreover, two bluetooth devices are working with profile of a certain bluetooth in a piconet, and since a bluetooth device can be used as not only a master device but also a slave device, when the bluetooth device is used as the master device in one piconet and the bluetooth device is used as the slave device in another piconet, if an inquiry, page, inquiry scan or page scan procedure is initiated in the piconet in which the bluetooth device is used as the master device at this time, the conventional scatter scheduling method will switch to the procedures to process after the work of all bluetooth devices in the active piconet is completed. If the number of piconets is large, the waiting time is longer, which causes poor user experience and makes the user feel that the process of pairing and connecting the bluetooth devices is inefficient.
Disclosure of Invention
The invention aims to: an improved Bluetooth scatternet scheduling method is provided, which can improve the efficiency of Bluetooth device pairing and connection between piconets, thereby improving the satisfaction degree of users.
In order to achieve the above purpose, the invention provides the following technical scheme:
a Bluetooth Scatternet scheduling method comprises the following steps,
setting a profile scene of the Bluetooth equipment in each Piconet in which the Bluetooth equipment participates;
setting the priority level of the profile scene in each Piconet in which the Bluetooth equipment participates; setting the priority of the process initiated by the user processed by the Bluetooth equipment to be at least higher than the priority of the profile scene performed by the Bluetooth equipment in one Piconet in which the Bluetooth equipment participates;
after receiving a process initiated by a user, before switching a Piconet to perform a profile scene each time, the Bluetooth device firstly judges the priority of the profile scene performed in the next Piconet and the priority of the process initiated by the user, if the priority of the process initiated by the user is higher, the process initiated by the user is processed, otherwise, the Bluetooth device is switched to the next Piconet to perform the profile scene.
According to a specific implementation mode, in the bluetooth scatter scheduling method of the present invention, a profile scene of the bluetooth device and the Piconet using the bluetooth device as a master device is A2 DP.
According to a specific implementation mode, in the bluetooth scatter scheduling method, the profile scene of the bluetooth device and the Piconet which takes the bluetooth device as a master device and a slave device is HID or OPP.
Further, the priority of the profile scene of the bluetooth device performing HID in the Piconet is higher than that of the profile scene of the bluetooth device performing OPP.
Based on the same inventive concept, the invention also provides the Bluetooth Scatternet for process processing and scheduling by adopting the Bluetooth Scatternet scheduling method.
Compared with the prior art, the invention has the beneficial effects that:
the Bluetooth Scatternet scheduling method also sets the priority level of the Bluetooth equipment for performing the profile scene in each participating Piconet after setting the profile scene of the Bluetooth equipment in the participating Piconet, and sets the priority level of the process initiated by the Bluetooth equipment processing user to be at least higher than the priority level of the process performed by the Bluetooth equipment in one participating Piconet. And after receiving the process initiated by the user, the Bluetooth device judges the priority of the process initiated by the user in the next Piconet and the priority of the process initiated by the user processed by the Bluetooth device before switching the Piconet to perform the process scene each time, if the priority of the process initiated by the user is higher, the process initiated by the user is processed, otherwise, the Bluetooth device switches to the next Piconet to perform the process scene. Therefore, the Bluetooth Scatternet scheduling method can improve the Bluetooth equipment pairing and connection efficiency among piconets in a Scatternet, thereby improving the satisfaction degree of users.
Description of the drawings:
fig. 1 is a schematic flow chart of a bluetooth scatter net scheduling method according to the present invention;
FIG. 2 is a diagram illustrating a scheduling sequence according to the prior art;
FIG. 3 is a diagram illustrating a scheduling sequence according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
Technical term interpretation:
inquiry: the inquiry of the bluetooth device, i.e. when the bluetooth device does not know what devices are around, needs to go to the inquiry, similar to broadcasting.
Inquiry scan: inquiry scanning of the Bluetooth device, namely the Bluetooth device in the inquiry scanning can respond to the inquiry of other Bluetooth devices.
Page: direct paging of a bluetooth device, i.e. the bluetooth device initiating the connection (master device) knows the address of the bluetooth device to be connected.
Page scan: paging of the bluetooth device indicates that the bluetooth device is in a paging waiting state.
A2DP Advanced Audio Distribution Profile Bluetooth Audio Transmission model protocol.
HID: the human-computer interaction equipment of the Hunman Interface Device and the HID specification enable input and control peripheral equipment of HID hosts of different platforms to achieve real interoperability.
OPP: object store specification (Object Push Profile). One of the bluetooth specifications is the exchange of data between a server and an agent.
Fig. 1 is a schematic flow chart of a bluetooth scatter scheduling method according to the present invention; wherein, first, a profile scene of the bluetooth device in each Piconet in which it participates is set.
Then, setting the priority level of the profile scene in each Piconet in which the Bluetooth equipment participates; setting the priority of the process initiated by the user processed by the Bluetooth equipment to be at least higher than the priority of the profile scene performed by the Bluetooth equipment in one Piconet in which the Bluetooth equipment participates;
after receiving a process initiated by a user, before switching a Piconet to perform a profile scene each time, the Bluetooth device firstly judges the priority of the profile scene performed in the next Piconet and the priority of the process initiated by the user, if the priority of the process initiated by the user is higher, the process initiated by the user is processed, otherwise, the Bluetooth device switches to the next Piconet to perform the profile scene. Since the priority of the bluetooth device for processing the process initiated by the user is at least higher than the priority of the bluetooth device for performing the profile scene in the Piconet in which the bluetooth device participates, the process initiated by the user does not wait for the final processing.
In connection with the prior art scheduling sequence diagram shown in fig. 2; the bluetooth device a is a master device in the Piconet1, and performs a profile scene A2DP with another bluetooth device in Piconet 1. Furthermore, bluetooth device a performs a profile scene of HID with another bluetooth device of Piconet2 as a slave device in Piconet 2; the bluetooth device a also acts as a slave in Piconet 3, and performs profile scene of OPP with other bluetooth devices in Piconet 3. For the bluetooth device a, its scatter scheduling method is performed in the order of Piconet1 → Piconet2 → Piconet 3 → inquiry/page/inquiry scan/page scan.
Specifically, when the bluetooth device a serving as a master device in Piconet1 performs a profile scene of A2DP with the bluetooth device a serving as a slave device in Piconet1, the user initiates an inquiry/page/inquiry scan/pagescan process, at this time, since the master device and the slave device of Piconet1 have not completed the profile scene of A2DP this time, the bluetooth device a continues to complete the profile scene of A2DP this time, and after completion, since the bluetooth device a also serves as a slave device of Piconet2 and performs a profile scene of HID with the master bluetooth device of Piconet2, the conventional scatter scheduling method switches the bluetooth device a to the profile scene of HID with Piconet 2. Meanwhile, as the primary and secondary devices of the Piconet2 do not complete the current interaction of the HID, the bluetooth device a continues to complete the current profile scene of the HID, and after the completion, the bluetooth device a also serves as a secondary device of the Piconet 3 and performs the profile scene of the OPP with the primary bluetooth device of the Piconet 3.
Finally, after the bluetooth device a completes all profile scenes of the Piconet, the conventional scatter scheduling method next processes the inquiry/page/inquiry scan/page scan process initiated by the bluetooth device a before processing. Therefore, in the conventional scatter scheduling method, if more piconets are involved by one bluetooth device, the longer the waiting time of the user is, the worse the user experience is when there is an inquiry/page/inquiry scan/page scan process.
FIG. 3 is a schematic diagram of the scheduling sequence of the present invention; the bluetooth device a serves as a master device in Piconet1, and performs a profile scene A2DP with another bluetooth device in Piconet 1. Moreover, the bluetooth device a acts as a slave device in the Piconet2, and performs a profile scene of HID with other bluetooth devices of the Piconet 2; the bluetooth device a also acts as a slave in Piconet 3, and performs profile scene of OPP with other bluetooth devices in Piconet 3.
Meanwhile, the priority of the bluetooth device a for performing profile scene in picoet 1 is set higher than the priority of the profile scene in picoet 2 for performing HID and the priority of the profile scene in picoet 3 for performing OPP. Meanwhile, the priority of the bluetooth device a for processing the user-initiated process is set to be higher than the priority of the profile scene in which it performs HID in picoset 2 and the profile scene in which it performs OPP in picoset 3. Moreover, the priority of the profile scene of the bluetooth device performing HID in the Piconet is higher than that of the profile scene of the bluetooth device performing OPP.
Therefore, when the bluetooth device a performs a profile scene in the Piconet1, a process initiated by the user is received, and before the bluetooth device a switches to the Piconet2 to perform the profile scene, the priority of the process initiated by the user in the Piconet2 and the priority of the process initiated by the user are determined first, and the priority of the process initiated by the user is obtained according to the set priority, so that the priority of the process initiated by the user is higher, and therefore the bluetooth device a processes the process initiated by the user first and then switches to the Piconet2 to perform the profile scene. Thereby improving the efficiency of bluetooth device pairing and connection between piconets in the scatternet.
Therefore, compared with the prior art, the Bluetooth Scatternet scheduling method greatly improves the Bluetooth equipment pairing and connecting efficiency among piconets in a Scatternet, and can effectively improve the satisfaction degree of users.
Claims (3)
1. A Bluetooth Scatternet scheduling method is characterized by comprising the following steps,
setting a profile scene of the Bluetooth equipment in each Piconet in which the Bluetooth equipment participates; wherein, the profile scene of the Bluetooth device and the Piconet taking the Bluetooth device as the master device is A2DP or HID or OPP;
setting the priority level of the profile scene in each Piconet in which the Bluetooth equipment participates; setting the priority of the process initiated by the user processed by the Bluetooth equipment to be at least higher than the priority of the profile scene performed by the Bluetooth equipment in one Piconet in which the Bluetooth equipment participates;
after receiving inquiry/page/inquiry scan/page scan processes initiated by a user, before switching a Piconet to perform a profile scene each time, the Bluetooth device firstly judges the priority of the profile scene in the next Piconet and the priority of the process initiated by the user, if the priority of the process initiated by the user is higher, the process initiated by the user is processed, and if not, the Bluetooth device is switched to the next Piconet to perform the profile scene.
2. The bluetooth scatteret scheduling method according to claim 1, wherein when the profile scene of the bluetooth device and the Piconet with the bluetooth device as the master device and the slave device is HID or OPP, the priority of the bluetooth device for HID in the Piconet is higher than the priority of the bluetooth device for OPP.
3. A bluetooth Scatternet, characterized in that, the bluetooth Scatternet scheduling method according to any of claims 1-2 is used for process processing scheduling.
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| US7016372B2 (en) * | 2001-02-28 | 2006-03-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Dynamic bandwidth allocation in AD hoc wireless piconets |
| EP2003556A1 (en) * | 2007-05-25 | 2008-12-17 | Axalto SA | Method of processing by a portable electronical device of applicative commands originating from physical channels, corresponding device and system |
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| CN101499824A (en) * | 2008-02-01 | 2009-08-05 | 中兴通讯股份有限公司 | Method for connecting Bluetooth audio equipment |
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