CN102035574B - Transmission method capable of reducing radio resource consumption and related device thereof - Google Patents
Transmission method capable of reducing radio resource consumption and related device thereof Download PDFInfo
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- CN102035574B CN102035574B CN 200910180130 CN200910180130A CN102035574B CN 102035574 B CN102035574 B CN 102035574B CN 200910180130 CN200910180130 CN 200910180130 CN 200910180130 A CN200910180130 A CN 200910180130A CN 102035574 B CN102035574 B CN 102035574B
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Abstract
The invention provides a transmission method capable of reducing radio resource consumption and a related device thereof. The method comprises the following steps of: setting an active time slot window on communication time, wherein the communication time at least comprises a receiving time slot; and converting the receiving time slot in the active time slot window into a transmission time slot. The technical scheme can reduce the radio resource consumption.
Description
Technical field
The present invention is about a kind of transmission method for Bluetooth system and relevant apparatus thereof, espespecially a kind of in Bluetooth system by initiatively transmit transmission method and the relevant apparatus thereof of package from device.
Background technology
Bluetooth (Bluetooth) system is a kind of radio short communication system, take microgrid (Piconet) as minimal network unit, utilize time division multiplexing (Time Division Duplexing) technology, allow a main device (Master Device) convey a message each other from device (Slave Device) with maximum seven.Bluetooth system is told a plurality of continuous slots (time slot) on the communication time of physical layer passage, according to the clock pulse of main device, time slot is carried out label, the even number time slot is as " MS master-slave " (Master-to-Slave) time slot, the odd number time slot as " from-main " (Slave-to-Master) time slot.On transmission time sequence, master and slave devices alternate transmission package, main device can only be on the even number time slot initial one be given from the package transmission of device, and from device can only be on the odd number time slot the initial one package transmission bluetooth time division multiplexing of responding main device, to realize time division multiplexing.
Many from application of installation in the humanization interface device on (Human Interface Device) now, as keyboard, mouse, earphone and rocking bar, its major function is used for receiving user's action, such as input, the movement of mouse and the brandishing of induction type rocking bar of keyboard.Due to these action tool unpredictabilities, therefore in the situation that a plurality of humanization interface device, main device must utilize the mode of inquiry (Polling) in turn, confirms one by one whether the humanization interface device has the action that the user detected to change.
Please refer to Fig. 1, Fig. 1 is the schematic diagram of known bluetooth system interrogation transmission time sequence.Fig. 1 describes the interior host computer (main device) of a microgrid and inquires communication with keyboard and mouse two from device.On communication time, time slot K, K+2, K+4...K+10 are " MS master-slave " time slot (even number time slot), and time slot K+1, K+3...K+11 be " from-main " time slot (odd number time slot).In Fig. 1, host computer is inquired keyboard and mouse in turn, at first it transmit an inquiry package PPK1 to keyboard in time slot K, and in the reply package of time slot K+1 reception keyboard, then transmit an inquiry package PPK2 to mouse in time slot K+2～K+4 again, and receive the reply package of mouse in time slot K+5～K+6.Then, due to host computer can only be on the even number time slot initial package transmission, must wait until that therefore time slot K+8 just begins to transmit an inquiry package PPK3 to keyboard.Similarly, because inquiry package PPK3 takies time slot K+8～K+9, so keyboard must wait until that time slot K+11 could reply host computer.
As from the foregoing, in the known bluetooth system, all be limited by main device from the device transport behavior, do not have the transmission independence.Also therefore, in order to pass on from the device data, master and slave devices must one comes one to expend more Radio Resource toward the transmission package.
Summary of the invention
Therefore, main purpose of the present invention is to provide a kind of transmission method and relevant apparatus thereof that initiatively transmits package from device that allow, to reduce radio resource consumption.
The present invention discloses and a kind ofly can reduce the transmission method of radio resource consumption for one of a Bluetooth system from device, it is included in sets an active time slot window (active time slot window) on a communication time, wherein said communication time comprises a receiving slot at least; And the receiving slot of changing in described active time slot window is the transmission time slot.
The present invention is another to be disclosed and a kind ofly can reduce the communication device of radio resource consumption for one of a Bluetooth system from device, and it comprises a central processing unit and a storage device.Described central processing unit is used for carrying out a program code, and described storage device is coupled to described central processing unit, is used for storing described program code.Wherein said program code is included in sets an active time slot window on a communication time, wherein said communication time comprises a receiving slot at least; And the receiving slot of changing in described active time slot window is the transmission time slot.
A kind of transmission method that can reduce radio resource consumption for a main device of a Bluetooth system of the another exposure of the present invention, it is included in and determines an active time slot window on a communication time, and wherein said communication time comprises that at least one transmits time slot; According to the active time slot window that determines, produce a function setting information; Transmit at least one from device to described Bluetooth system of described function setting information, describedly at least onely set described active time slot window from device to allow; And during described active time slot window, it is receiving slot that conversion transmits time slot, to listen to from described at least one bluetooth package from device.
A kind of communication device that can reduce radio resource consumption for a main device of a Bluetooth system of the another exposure of the present invention, it comprises a central processing unit and a storage device.Described central processing unit is used for carrying out a program code, and described storage device is coupled to described central processing unit, is used for storing described program code.Wherein said program code is included in and determines an active time slot window on a communication time, and wherein said communication time comprises that at least one transmits time slot; According to the active time slot window that determines, produce a function setting information; Transmit at least one from device to described Bluetooth system of described function setting information, describedly at least onely set described active time slot window from device to allow; And during described active time slot window, it is receiving slot that conversion transmits time slot, to listen to from described at least one bluetooth package from device.
According to technical scheme provided by the invention, can reduce radio resource consumption.
Description of drawings
Fig. 1 is the schematic diagram of known bluetooth system interrogation transmission time sequence.
Fig. 2 is that the embodiment of the present invention is used for from the flow chart of device flow process.
Fig. 3 is the flow chart that the embodiment of the present invention is used for main device flow process.
Fig. 4 is an embodiment schematic diagram of communication time configuration of the present invention.
Fig. 5 to Fig. 7 is the information exchange sequential chart that the present invention is used for starting the active transmission function.
Fig. 8 to Fig. 9 is the information exchange sequential chart that the present invention is used for closing the active transmission function.
Figure 10 is first embodiment of the invention master device and the transmission time sequence schematic diagram from installing.
Figure 11 is second embodiment of the invention master device and the transmission time sequence schematic diagram from installing.
Figure 12 is the embodiment schematic diagram of the present invention's one communication device.
Drawing reference numeral
K、K+2、K+3、K+4、K+5、K+6、K+7、K+8、K+9、K+10、K+11
Time slot
PPK1, PPK2, PPK3 inquire package
The LMP_ReqRTDD_Service solicited message
MLMP_Accepted, LMP_RTDD_Cfg function setting information
SLMP_Accepted receives information
The SLMP_Not_Accepted exclude information
SLMP_StopRTDD_Service, MLMP_StopRTDD_Service abort request information
MLMP_StopRTDD_Accepted, SLMP_StopRTDD_Accepted end to receive information
MAS master's device
SLV1, SLV2, SLV3, SLV4 are from device
RTDDWin_1, RTDDWin_2 be the time slot window initiatively
The non-active time slot window of BTDDWin_1, BTDDWin_2
DM1, Pkt1, Pkt2, Pkt3, Pkt4 bluetooth package
1200 communication devices
1210 radio-frequency (RF) transceiver
1220 baseband circuits
1230 central processing units
1240 storage devices
1250 program codes
1252 radio protocol layers
1254 LCP layers
1256 LMP Link Manager Protocol layers
1258 active transmission function programs
20,30 flow processs
200,210,220,230,240,300,310,320,330,340,350 steps
Embodiment
The embodiment of the present invention mainly is to provide a kind of allowing not be limited by from device transmission method and the relevant apparatus thereof that main device can initiatively transmit package.If note that not datedly especially in the present embodiment, receiving slot all is considered as " MS master-slave " (Master-to-Slave) time slot, transmit time slot all be considered as " from-main " (Slave-to-Master) time slot.
Please refer to Fig. 2, Fig. 2 is the schematic diagram of the present invention's one flow process 20.Flow process 20 is used for one of Bluetooth system and realizes an active transmission function in packet-switched (Packet Switched) field from device, to reduce radio resource consumption.Flow process 20 comprises the following steps:
Step 200: beginning.
Step 210: set an active time slot window on a communication time.
Step 220: change in described active time slot window receiving slot (" MS master-slave " time slot) for transmit time slot (" from-main " time slot).
Step 230: transmit a bluetooth package to a main device of described Bluetooth system during described active time slot window.
Step 240: finish.
According to flow process 20, the present invention gets one or more snippets special time from device at communication time, be set as initiatively time slot window, and all receiving slots in active time slot window all are converted to the transmission time slot, initiatively to transmit the bluetooth package to main device during active time slot window.After active time slot window finished, the payment received that can carry out a group and implicit expression from device was confirmed program (principle and operation will in hereinafter explanation), successfully maybe needs re-transmission to confirm that package transmits.Therefore, during active time slot window, can initiatively transmit package from the device inquiry that do not need to wait for main device, thus, not only the main device Radio Resource that is used for inquiring is saved, and also promotes the efficient of linking up between master and slave devices.
Due to can not communicate with each other from device under same microgrid, in preferred embodiment of the present invention, be the function setting information setting active time slot window that produces according to a main device from device.In the case, the invention provides one and be used for main device realization from the flow process of the active transmission function of device.Please refer to Fig. 3, Fig. 3 is the schematic diagram of the present invention's one flow process 30.Flow process 30 can coordinate flow process 20, comprises the following steps:
Step 300: beginning.
Step 310: on a communication time, determine an active time slot window.
Step 320: according to the active time slot window that determines, produce a function setting information.
Step 330: transmit described function setting information extremely from device.
Step 340: during described active time slot window, conversion transmit time slot (" MS master-slave " time slot) be receiving slot (" from-main " time slot), to listen to since the bluetooth package that installs.
Step 350: finish.
According to flow process 30, the main device of the present invention is got one or more snippets special time on communication time, determines to be active time slot window, and produces the correlation function set information, will be sent to after it produces from device to carry out from device active transmission function setting.During active time slot window, all transmit time slots (" MS master-slave " time slot) be converted to receiving slot (" from-main " time slot), to listen to the bluetooth package since device.From aspect device active transmission function setting, main device can be known the number from device that participates in the active transmission function, and determines for the first time initiatively in the time slot window from the transmission sequence between device.After active time slot window finished, main device can according to the package that receives, be confirmed program with the payment received of carrying out group and implicit expression from device.
On the setting means of active time slot window, main device can first be set a periodic tentative time division multiplexing time slot interval (Temporary Reserved Time Division Duplex Slot Interval), set long fixing active time slot window of a time again in each tentative time division multiplexing time slot district, and also comply with setting according to function setting information from device.Please refer to Fig. 4, Fig. 4 is an embodiment schematic diagram of the communication time configuration of active transmission function of the present invention.Have two kinds of time slots on communication time, namely " MS master-slave " time slot of label 0 or label 1 " from-main " time slot.Concerning from device, ' 0 ' time slot is receiving slot, and ' 1 ' time slot is for transmitting time slot.It is interval that Fig. 4 simply depicts two continuous tentative time division multiplexing time slots, and each interval comprises initiatively time slot window of a non-active time slot window and.The time slot of non-active time slot window is according to the time slot configuration of known bluetooth system, reached by " MS master-slave " " from-main " the time slot alternative arrangement, need to transmit package by main device inquiry from device, and initiatively " MS master-slave " time slot of time slot window all be converted to " from-main " time slot, according to described function setting information, use one or more ' 1 ' time slot in active time slot window initiatively to transmit the bluetooth package to main device from device.
Function setting information of the present invention comprises the related parameter values of active transmission function, is usually produced by main device and utilizes clean culture (Unicast) mode to pass to from device.Please refer to Fig. 5 to Fig. 7, Fig. 5 to Fig. 7 is the information exchange sequential chart that the present invention is used for starting the active transmission function.In Fig. 5, initiatively transmit a solicited message LMP_ReqRTDD_Service from device, use the active transmission function to main device request.When main device is accepted request from device, reply a function setting information MLMP_Accepted, according to the included content of parameter of function setting information MLMP_Accepted, start the active transmission function from device, as setting initiatively time slot window.In Fig. 6, main device transmits a function setting information LMP_RTDD_Cfg, requires to start the active transmission function from device, replys the SLMP_Accepted that receives information from device and confirms to accept requirement to main device.In Fig. 7, master and slave devices utilizes respectively function setting information LMP_RTDD_Cfg and solicited message LMP_ReqRTDD_Service consultation parameter content, when disagreeing with the indicated content of parameter of main device from device, can reply one and carry the solicited message LMP_ReqRTDD_Service of reference parameter content secretly, when main device is disagreed with the reference parameter content, can transmit once again one and carry the function setting information LMP_RTDD_Cfg of new reference parameter content secretly.Negotiation procedure represents that both sides consult successfully until reply from device the SLMP_Accepted that receives information, the content of parameter that will use main device to indicate for the last time from device.On the contrary, if reply an exclude information SLMP_Not_Accepted from device, represent that both sides consult failure, negotiation procedure is ended.
Solicited message LMP_ReqRTDD_Service can comprise parameter Max_Desired_RTDD_Time and Min_Desired_RTDD_Time, two 2 of parameter lengths (bit), take time slot as unit, provide respectively the maximum that can accept tentative time division multiplexing time slot interval and minimum value to main device, or provide respectively and can accept initiatively maximum and the minimum value of time slot window, its viewing system demand and deciding.Function setting information MLMP_Accepted and LMP_RTDD_Cfg can comprise parameters R TDD_Interval, RTDD_Window, RTDD_Instant and RTDD_TokenAddr.Parameters R TDD_Interval and RTDD_Window can be by 2 bit representations, and take time slot as unit, the size of time division multiplexing time slot interval and active time slot window is fixed tentatively in indication respectively; Parameters R TDD_Instant forms by 4, is used to refer to the main device bluetooth clock pulse of next time opening active transmission function place, that is to say, knows accordingly from device initiatively when the time slot window finishes; Parameters R TDD_TokenAddr length is 1, be used to refer in next initiatively time slot window and other have the active transmission function from the transmission sequence between device.In addition, according to parameters R TDD_TokenAddr, each transmits the order of package at each active time slot window Self-adjustment from device.
Please refer to Fig. 8 to Fig. 9, Fig. 8 to Fig. 9 is the information exchange sequential chart that the present invention is used for closing the active transmission function.In Fig. 8, initiatively transmit an abort request information SLMP_StopRTDD_Service from device, propose to end the request of active transmission function to main device, main device is responded the termination MLMP_StopRTDD_Accepted that receives information and is informed from device and agree described request.In Fig. 9, main device transmits an abort request information MLMP_StopRTDD_Servicr, requirement is ended the active transmission function from device, responds receive information SLMP_StopRTDD_Accepted and then end the active transmission function of main device one termination from device.
Preferably, the information and the relative program thereof that more than are used for starting or close the active transmission function are LMP Link Manager Protocol (Link Management Protocol, the LMP) layers that applies to Bluetooth system, are implemented in the active transmission function of radio layer with management.
The present invention initiatively time slot window can being shared from device institute by a plurality of use active transmission functions, therefore when the active transmission function setting, first mutually set up transmission sequence from installing, and in active time slot window first the transmission package be called start end (Initiator) from device, other are called follows end (Follower).Because in Bluetooth system, each assigns a logical transport address (Logic TransportAddress from device by main device, Lt_Addr), therefore can utilize logical transport address and aforementioned parameters RTDD_TokenAddr from device, set up transmission sequence with other from device.For clearer exposure concept of the present invention, following examples will lift a main device and a plurality of from the device between transmission time sequence explain.
Please refer to Figure 10, Figure 10 is that the main device of first embodiment of the invention one MAS reaches from the transmission time sequence schematic diagram of device SLV1～SLV4.The communication time of Figure 10 comprises that two tentative time division multiplexing time slots of demonstration are interval, one comprises active time slot window 1 (RTDDWin_1) and a non-active time slot window 1 (BTDDWin_1), another comprises active time slot window 2 (RTDDWin_2) and a non-active time slot window 2 (BTDDWin_2), and initiatively time slot window 1 (RTDDWin_1) comprises all that with active time slot window 2 (RTDDWin_2) four transmission time slots are for initiatively transmitting package from device SLV1～SLV4.In active time slot window 1 (RTDDWin_1), with from installing SLV1 as start end, sequentially transmit the bluetooth package of DM1 type to main device MAS with other from device.The data characteristic of the humanization interface device of picture mouse or keyboard and so on, the bluetooth package of DM1 or DH1 type can satisfy the demands, and its gauge outfit connects the access code (Access Code) that comprises one 68.Know because the bluetooth package form of DM1 or DH1 type should be those skilled in the art, so the related pattern content repeats no more.For each efficiency of transmission from device of balance, the present invention can be at every next initiatively time slot window, from device sequentially, periodically work as start end, as shown in figure 10, in next one active time slot window 2 (RTDDWin_2), by working as start end from device SLV2, with sequentially transmit the bluetooth package from device SLV3, SLV4 and SLV1, thereafter three initiatively time slot windows (not being shown in figure) more respectively by working as start end from device SLV3, SLV4 and SLV1.Can according to logical transport address and the parameters R TDD_TokenAddr of oneself, automatically adjust transmission sequence at each active time slot window from device SLV1～SLV4.In other words, from the predetermined transmission time slot of device SLV1～SLV4 along with the cycle in tentative time division multiplexing time slot district is carried out the periodic location conversion.
In non-active time slot window 1 (BTDDWin_1) and non-active time slot window 2 (BTDDWin_2), carry out respectively confirming program corresponding to the group of active time slot window 1 (RTDDWin_1) and active time slot window 2 (RTDDWin_2) and the payment received of implicit expression from device SLV1～SLV4 and main device MAS, its related notion is as follows.At first, first " MS master-slave " time slot after active time slot window finishes all listens to from device SLV1～SLV4 first package that main device MAS sends out, and next can be divided into three kinds of situations:
Situation one: if first package that main device MAS sends out, it comprises logical transport address does not belong to any logical transport address from device SLV1～SLV4, when perhaps first package is a broadcasting packages, represent all successfully to be received by main device MAS from the package that device SLV1～SLV4 transmits active time slot window.For instance, SLV1～SLV4 has respectively logical transport address Lt_Addr1～Lt_Addr4 from device, and the logical transport address of the first package is Lt_Addr5, represent all to transmit successfully from the package of device SLV1～SLV4, namely successful payment received is confirmed (PositivelyAcknowledged).
Situation two: if when the logical transport address that first package comprises is arbitrary logical transport address from device SLV1～SLV4, just be illustrated in active time slot window, (i) needed to retransmit package by what the first package was indicated from device, namely payment received is not confirmed (Negatively Acknowledged); (ii) the front package from device that transmits package transmits successfully; (iii) more late transmission package must enter an inquiry wait state from device, continue to wait for the notice of main device, until there is the logical transport address not belong to any logical transport address from device SLV1～SLV4 among the package that main device transmits, just expression all transmits successfully from the package that installs SLV1～SLV4.For instance, if the logical transport address of the first package is Lt_Addr3, represent all to transmit successfully from the package of device SLV1～SLV2, SLV2 need retransmit package from device, and enters the inquiry wait state from device SLV3.
Situation three: if until next before initiatively time slot window begins, does not all listen to the package of any main device from device SLV1～SLV4, represent from the package of device SLV1～SLV4 all successfully receivedly, meaning is that implicit expression payment received is confirmed.
Therefore, with the position from device SLV1～SLV4, a suitable payment received confirms that program must comprise following several step and principle at least, take from device SLV2 as example:
(1) after active time slot window finishes, enter the state that just listens the bluetooth package of fetching autonomous device MAS;
When (2) not listening to any package in non-active time slot window, it is successful payment received state that judgement transmits package;
(3) in first bluetooth package of successfully listening to from described main device, it comprises one when exceeding the logical transport address of Lt_Addr2, and it is successful payment received state that judgement transmits the bluetooth package;
(4) in successfully listening to first bluetooth package, and it is when being a broadcast-type package, and it is successful payment received state that judgement transmits package;
(5) in successfully listening to first bluetooth package, when it also comprised logical transport address Lt_Addr2, judgement transmits package to be needed to retransmit;
(6) in successfully listening to first bluetooth package, when it comprises logical transport address in the scope of a Lt_Addr2, enter an inquiry wait state; And
When (7) receiving a bluetooth package from described main device in the inquiry wait state, follow the judgment principle of (3), (5) and (6).
" the logical transport address that exceeds Lt_Addr2 " of aforementioned (3) represents transmission sequence after device SLV2, or do not belong to arbitrary logical transport address from device SLV1～SLV4.Relatively, " the logical transport address in the scope of Lt_Addr2 " the expression transmission sequence of (6) is in the logical transport address before device SLV2.
In addition, please refer to Figure 11, Figure 11 is that second embodiment of the invention master device MAS reaches from the transmission time sequence schematic diagram of device SLV1～SLV4.In Figure 11, initiatively time slot window 1 (RTDDWin_1) and initiatively the first and the 3rd time slot of time slot window 2 (RTDDWin_2) be by " MS master-slave " time slot convert to " from-main " time slot, and the second and the 4th time slot originally be " from-lead " time slot.Figure 11 and Figure 10 different be in the second and the 4th cis-position adopt shorter access code (as 32) to transmit package from device, i.e. package Pkt1～Pkt4 of Figure 11.In the second and the 4th time slot, knownly be in a delivery status yet and can't listen to any package from device, so the present invention can not have influence on known running from device from the package that device transmits short access code.Thus, the present invention can save through-put power from device, also keeps and known compatibility from device.
Please pay special attention to, use the logical transport address only to be one embodiment of the invention as the differentiation of transmission sequence in aforementioned payment received confirmation program, the technology resentment of this area is known also can use and anyly can be set up information from the device relativeness as the order index.In addition, the present invention can carry out the multi-slot transmission from device active time slot window, is not limited to the package transmission of a slot length.
Please refer to Figure 12, Figure 12 is the embodiment schematic diagram that the present invention is used for a communication device 1200 of a blue-tooth device.Communication device 1200 comprises a radio-frequency (RF) transceiver 1210, a baseband circuit 1220, a central processing unit 1230 and a storage device 1240.Radio-frequency (RF) transceiver 1210 can allow blue-tooth device transmit and receive wireless signal.CPU 1230 can be carried out the stored program code 1250 of storage device 1240, to control radio-frequency (RF) transceiver 1210, baseband circuit 1220 and storage device 1240.Program code 1250 comprises a radio protocol layers 1252, link control (Link Control, a LC) protocol layer 1254 and a LMP Link Manager Protocol (Link Management Protocol, LMP) layer 1256.The present invention provides an active transmission function program 1258 in program code 1250, carry out by central processing unit 1230, to realize on main device or from installing the operation about the active transmission function.
When communication device 1200 was used for a bluetooth from device, active transmission function program 1258 is mainly used to realization flow 20 to be allowed and can during active time slot window, initiatively transmit package to main device from device.In the case, the main radio-frequency (RF) transceiver 1210 that coordinates of radio protocol layers 1252 is carried out frequency synthesis and data transaction, to transmit and to receive package on physical channel.The main ligand frequency circuit 1220 of LCP layer 1254 is responsible for the identification time slot for transmitting or receiving slot, reaches according to function setting information setting active time slot window.LMP Link Manager Protocol layer 1256 is used for understanding and setting the relevant information of active transmission function, for example understand the function setting information of independently installing, also manage in addition the relevant parameter of active transmission function, as aforementioned parameters Max_Desired_RTDD_Time and RTDD_Instant.By the management of parameter, LMP Link Manager Protocol layer 956 is responsible for the line of foundation, release and management and main device.Can be used to realization flow 20 because communication device 1200 utilizes active transmission function program 1258, so the detailed operation of active transmission function please refer to aforementioned (as Fig. 2 and Fig. 4～Figure 11 narration).
When communication device 1200 was used for a bluetooth master device, active transmission function program 1258 was mainly used to realization flow 30.In the case, the main ligand frequency circuit 1220 of LCP layer 1254 is responsible for the identification time slot for transmitting or receiving slot, reaches and sets initiatively time slot window.LMP Link Manager Protocol layer 1256 is used for producing the startup of active transmission function and closing information etc., with the active transmission function that requires to start, close and change from device.Can be used to realization flow 30 because communication device 1200 utilizes active transmission function program 1258, so the detailed operation of active transmission function please refer to aforementioned (as Fig. 3 and Fig. 4～Figure 11 narration).
In sum, set up initiatively time slot window on the communication time of the present invention's master and slave devices in Bluetooth system, allow the transport behavior that is not limited by main device from the package transmission of device.In the case, main device can be saved the package for inquiry, therefore approximately can save 50% Radio Resource compared to known technology.In addition, the present invention can use simultaneously the package of short access code and not affect and known compatibility from device from device, can further save Radio Resource.
The above is only preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (12)
1. the transmission method that can reduce radio resource consumption, is characterized in that, described transmission method be used for a Bluetooth system one from device, described transmission method comprises:
Receive from the main device of described Bluetooth system the function setting information that described main device produces, the content of parameter included according to described function setting information starts the active transmission function;
Set an active time slot window on a communication time, wherein said communication time comprises a receiving slot at least; And
The receiving slot of changing in described active time slot window is the transmission time slot;
Accordingly, described main device is converted to receiving slot with all the transmission time slots in described active time slot window, to listen to the bluetooth package from said slave device according to described function setting information setting active time slot window.
2. transmission method as claimed in claim 1, it is characterized in that, set the function setting information that described active time slot window comprises that the main device according to described Bluetooth system produces on described communication time, set described active time slot window on described communication time;
Described transmission method transmits a bluetooth package to a main device of described Bluetooth system during separately being included in described active time slot window;
Wherein, described bluetooth package comprises that a length is less than the access code of 68.
3. transmission method as claimed in claim 2, is characterized in that, after described transmission method separately is included in described active time slot window end, carries out the payment received of a group and implicit expression and confirm program;
After the payment received confirmation program of carrying out described group and implicit expression after described active time slot window end is included in described active time slot window end, utilization can be confirmed program with the payment received that other order indexs of distinguishing from device are carried out described group and implicit expression, and wherein said payment received confirmation program comprises:
After described active time slot window finishes, enter the state of fetching from the bluetooth package of described main device that just listens;
When not listening to any package from described main device within a default time limit, the bluetooth package that judgement transmits is successful payment received state;
In first bluetooth package of successfully listening to from described main device, and described first bluetooth package comprises one when exceeding the order index of described order index, and the described bluetooth package that judgement transmits is successful payment received state;
In successfully listening to described first bluetooth package, and described first bluetooth package is when being a broadcast-type package, and the described bluetooth package that judgement transmits is successful payment received state;
In successfully listening to described first bluetooth package, and described first bluetooth package is when comprising an order index identical with described order index, and the described bluetooth package that judgement transmits needs to retransmit;
In successfully listening to described first bluetooth package, and described first bluetooth package enters an inquiry wait state when comprising order index in the scope of a described order index; And
Receive the bluetooth package from described main device in described inquiry wait state, and described bluetooth package comprises one when exceeding the order index of described order index, the described bluetooth package that judgement transmits is successful payment received state;
Wherein, described order index is a logical transport address.
4. transmission method as claimed in claim 2, is characterized in that, described transmission method comprises that separately the periodic tentative time division multiplexing time slot of setting one is interval, and it comprises described active time slot window;
Transmission package to the described main device of described Bluetooth system comprises during described active time slot window:
A predetermined transmission in described active time slot window transmitted package to a main device of described Bluetooth system in time slot, the position of wherein said predetermined transmission time slot in described active time slot window is along with the cycle in described tentative time division multiplexing time slot district is carried out the periodicity conversion.
5. the communication device that can reduce radio resource consumption, is characterized in that, described communication device be used for a Bluetooth system one from device, described communication device comprises:
Receive from a main device of described Bluetooth system the function setting information that described main device produces, and the content of parameter included according to described function setting information starts the module of active transmission function;
Set the module of an active time slot window on a communication time, wherein said communication time comprises a receiving slot at least; And
The receiving slot of changing in described active time slot window is the module that transmits time slot;
Wherein, described main device is converted to receiving slot with all the transmission time slots in described active time slot window, to listen to the bluetooth package from said slave device according to described function setting information setting active time slot window.
6. communication device as claimed in claim 5, it is characterized in that, the module of setting described active time slot window on described communication time comprises: according to the function setting information that a main device of described Bluetooth system produces, set the module of described active time slot window on described communication time; Described communication device also comprises:
Transmit a bluetooth package to the module of described main device during described active time slot window;
Wherein, described bluetooth package comprises that a length is less than the access code of 68.
7. communication device as claimed in claim 6, is characterized in that, described communication device also comprises:
The payment received of carrying out a group group and implicit expression after described active time slot window finishes is confirmed the module of program;
Carry out the payment received of described group and implicit expression and confirm that the module of program comprises after described active time slot window finishes: after described active time slot window finishes, utilization can be confirmed the module of program with the payment received that other order indexs of distinguishing from device are carried out described group and implicit expression, wherein said payment received confirmation program comprises:
After described active time slot window finishes, enter the state of fetching from the bluetooth package of described main device that just listens;
When not listening to any package from described main device within a default time limit, the bluetooth package that judgement transmits is successful payment received state;
In first bluetooth package of successfully listening to from described main device, and described first bluetooth package comprises one when exceeding the order index of described order index, and the described bluetooth package that judgement transmits is successful payment received state;
In successfully listening to described first bluetooth package, and described first bluetooth package is when being a broadcast-type package, and the described bluetooth package that judgement transmits is successful payment received state;
In successfully listening to described first bluetooth package, and described first bluetooth package is when comprising an order index identical with described order index, and the described bluetooth package that judgement transmits needs to retransmit;
In successfully listening to described first bluetooth package, and described first bluetooth package enters an inquiry wait state when comprising order index in the scope of a described order index; And
Receive the bluetooth package from described main device in described inquiry wait state, and described bluetooth package comprises one when exceeding the order index of described order index, the described bluetooth package that judgement transmits is successful payment received state;
Wherein, described order index is a logical transport address.
8. communication device as claimed in claim 5, is characterized in that, described communication device also comprises:
Set the module in a periodic tentative time division multiplexing time slot interval, described periodic tentative time division multiplexing time slot interval comprises described active time slot window;
Transmit package to the module of the described main device of described Bluetooth system during described active time slot window, comprising:
A predetermined transmission in described active time slot window transmitted package to the module of a main device of described Bluetooth system in time slot, the position of wherein said predetermined transmission time slot in described active time slot window is along with the cycle in described tentative time division multiplexing time slot district is carried out the periodicity conversion.
9. the transmission method that can reduce radio resource consumption, is characterized in that, described transmission method is used for a main device of a Bluetooth system, and described transmission method comprises:
Determine an active time slot window on a communication time, wherein said communication time comprises that at least one transmits time slot;
According to the active time slot window that determines, produce a function setting information;
Transmit at least one from device to described Bluetooth system of described function setting information, describedly at least onely set described active time slot window from device to allow, the receiving slot of the said slave device that the described active time slot that said slave device will be set is interior is converted to the transmission time slot; And
During described active time slot window, it is receiving slot that conversion transmits time slot, to listen to from described at least one bluetooth package from device.
10. transmission method as claimed in claim 9, is characterized in that, after described transmission method separately is included in described active time slot window end, carries out the payment received of a group and implicit expression and confirm program;
Described transmission method separately comprises and determines that a periodic tentative time division multiplexing time slot is interval, and it comprises described active time slot window;
Described transmission method separately comprises:
The quantity and one from device that is decided by to carry out in the time slot window initiatively package transmission transmission sequence that goes out to begin; And
Insert the parameter of the described transmission sequence that goes out to begin in function setting information;
The described transmission sequence that goes out to begin is to determine according to described at least one logical transport address from device.
11. the communication device that can reduce radio resource consumption is characterized in that, described communication device is used for a main device of a Bluetooth system, and described communication device comprises:
Determine the module of an active time slot window on a communication time, wherein said communication time comprises that at least one transmits time slot;
According to the active time slot window that determines, produce the module of a function setting information;
Transmit described function setting information to described Bluetooth system at least one from the device, to allow described at least one module of setting described active time slot window from device, wherein, the receiving slot of the said slave device in the described active time slot that will set of said slave device is converted to the transmission time slot; And
During described active time slot window, it is receiving slot that conversion transmits time slot, to listen to the module from described at least one bluetooth package from device.
12. communication device as claimed in claim 11 is characterized in that, described communication device also comprises:
After described active time slot window finishes, listen to result according to package, the payment received of carrying out a group and implicit expression is confirmed the module of program;
Determine a periodic module of fixing tentatively time division multiplexing time slot interval, it comprises described active time slot window;
The quantity and one from device that is decided by to carry out in the time slot window initiatively package transmission module of transmission sequence that goes out to begin; And
Insert the module of parameter in function setting information of the described transmission sequence that goes out to begin;
The described transmission sequence that goes out to begin is to determine according to described at least one logical transport address from device.
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| CN102035574B true CN102035574B (en) | 2013-06-19 |
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| GB201516674D0 (en) | 2015-09-21 | 2015-11-04 | Nicoventures Holdings Ltd | Topology |
| GB201516673D0 (en) | 2015-09-21 | 2015-11-04 | Nicoventures Holdings Ltd | Topology |
| GB201707050D0 (en) | 2017-05-03 | 2017-06-14 | British American Tobacco Investments Ltd | Data communication |
| GB201722241D0 (en) | 2017-12-29 | 2018-02-14 | British American Tobacco Investments Ltd | Data capture across devices |
| GB201722278D0 (en) | 2017-12-29 | 2018-02-14 | British American Tobacco Investments Ltd | Device identification and method |
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