CN102035574A - 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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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 and relevant apparatus thereof that is used for Bluetooth system, refer to especially a kind of in Bluetooth system by the transmission method and the relevant apparatus thereof that initiatively transmit package from device.
Background technology
Bluetooth (Bluetooth) system is a kind of radio short communication system, with microgrid (Piconet) is minimal network unit, utilize time division multiplexing (Time Division Duplexing) technology, allow a main device (Master Device) with maximum seven from the device (Slave Device) convey a message each other.Bluetooth system is told a plurality of continuous slots (time slot) on the communication time of physical layer passage, clock pulse according to main device carries out label to time slot, the even number time slot is as " MS master-slave " (Master-to-Slave) time slot, the odd number time slot then 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.
Manyly now be applied on the humanization interface device (Human Interface Device) from device, as keyboard, mouse, earphone and rocking bar, its major function is used for receiving user's action, such as brandishing of input, mouse moving and the induction type rocking bar of keyboard.Because these action tool unpredictabilities, therefore under the situation of a plurality of humanization interface devices, main device must utilize the mode of inquiry (Polling) in turn, confirms one by one whether the humanization interface device has the action that detects the user to change.
Please refer to Fig. 1, Fig. 1 is the schematic diagram of known bluetooth system interrogation transmission time sequence.Fig. 1 describes in the microgrid host computer (main device) and keyboard and mouse two and inquires communication 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, it at first transmits an inquiry package PPK1 in time slot K and gives keyboard, and in the answer package of time slot K+1 reception keyboard, then transmit an inquiry package PPK2 in time slot K+2～K+4 again and give mouse, and receive the answer package of mouse in time slot K+5～K+6.Then and since 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 and gives 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, do not have the transmission independence from the device transport behavior.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, and expends to reduce Radio Resource.
The present invention disclose a kind of be used for a Bluetooth system one from the device can reduce the transmission method that Radio Resource expends, it is included in sets an active time slot window (active time slot window) on the communication time, wherein said communication time comprises a receiving slot at least; And the receiving slot of changing in the described active time slot window is the transmission time slot.
The present invention disclose in addition a kind of be used for a Bluetooth system one from the device can reduce the communication device that Radio Resource expends, 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 the communication time, wherein said communication time comprises a receiving slot at least; And the receiving slot of changing in the described active time slot window is the transmission time slot.
The present invention discloses an a kind of main device that is used for a Bluetooth system in addition can reduce the transmission method that Radio Resource expends, and it is included in and determines an active time slot window on the communication time, and wherein said communication time comprises that at least one transmits time slot; According to the active time slot window that is determined, produce a function setting information; Transmit at least one to described Bluetooth system of described function setting information, describedly at least onely set described active time slot window from device to allow from device; 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.
The present invention discloses an a kind of main device that is used for a Bluetooth system in addition can reduce the communication device that Radio Resource expends, 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 and determines an active time slot window on the communication time, and wherein said communication time comprises that at least one transmits time slot; According to the active time slot window that is determined, produce a function setting information; Transmit at least one to described Bluetooth system of described function setting information, describedly at least onely set described active time slot window from device to allow from device; 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 and expend.
Description of drawings
Fig. 1 is the schematic diagram of known bluetooth system interrogation transmission time sequence.
Fig. 2 is used for from the flow chart of device flow process for the embodiment of the invention.
Fig. 3 is used for the flow chart of main device flow process for the embodiment of the invention.
Fig. 4 is an embodiment schematic diagram of communication time configuration of the present invention.
Fig. 5 to Fig. 7 is used for starting the information exchange sequential chart of active transmission function for the present invention.
Fig. 8 to Fig. 9 is used for closing the information exchange sequential chart of active transmission function for the present invention.
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
SLMP_Not_Accepted refuses 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 of BTDDWin_1, BTDDWin_2 window
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 invention mainly is to provide a kind of allowing not be limited by transmission method and the relevant apparatus thereof that main device can initiatively transmit package from device.Note that in the present embodiment if receiving slot all is considered as " MS master-slave " (Master-to-Slave) time slot not dated especially, 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, expends to reduce Radio Resource.Flow process 20 comprises the following steps:
Step 200: beginning.
Step 210: on a communication time, set an active time slot window.
Step 220: change in the described active time slot window receiving slot (" MS master-slave " time slot) for transmit time slot (" from-main " time slot).
Step 230: during described active time slot window, transmit the main device of a bluetooth package to described Bluetooth system.
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 at initiatively time slot window, and all receiving slots in the active time slot window all are converted to the transmission time slot, during active time slot window, initiatively to transmit the bluetooth package to main device.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, the inquiry that does not need to wait for main device from device can initiatively transmit package, and thus, the Radio Resource that not only main device is used for inquiring is saved, and also promotes the efficient of linking up between the master and slave devices.
Because can not communicate with each other from device under same microgrid in preferred embodiment of the present invention, is 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 the flow process of main device realization from 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 cooperate flow process 20, comprises the following steps:
Step 300: beginning.
Step 310: on a communication time, determine an active time slot window.
Step 320:, produce a function setting information according to the active time slot window that is determined.
Step 330: transmit described function setting information extremely from device.
Step 340: during described active time slot window, it be receiving slot (" main from one " time slot) that conversion transmits time slot (" main from " 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 bluetooth package since device.From aspect the device active transmission function setting, main device can be known the number from device that participates in the active transmission function, and decision for the first time initiatively in the time slot window from the transmission sequence between the device.After active time slot window finished, main device can be confirmed program with the payment received of carrying out group and implicit expression from device according to the package that receives.
On the setting means of active time slot window, main device can be set the tentative time division multiplexing time slot interval (Temporary Reserved Time Division Duplex Slot Interval) of one-period property earlier, in each tentative time division multiplexing time slot district, set long fixing active time slot window of a time again, 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 the communication time, promptly " MS master-slave " time slot of label 0 or label 1 " from-main " time slot.Concerning from device, ' 0 ' time slot is a receiving slot, and ' 1 ' time slot is for transmitting time slot.Fig. 4 simply depicts two continuous tentative time division multiplexing time slot intervals, 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, reach by " MS master-slave " " from-main " alternately arrangement of time slot, need to transmit package from device by main device inquiry, and initiatively " MS master-slave " time slot of time slot window be converted to all " from-main " time slot, according to described function setting information, use one or more ' 1 ' time slot in the active time slot window initiatively to transmit the bluetooth package from device to main device.
Function setting information of the present invention comprises the related parameter values of active transmission function, is produced by main device usually 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 used for starting the information exchange sequential chart of active transmission function for the present invention.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, then reply a function setting information MLMP_Accepted, then 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, then replys the SLMP_Accepted that receives information from device and confirms to accept requirement for main device.In Fig. 7, master and slave devices utilizes function setting information LMP_RTDD_Cfg and solicited message LMP_ReqRTDD_Service consultation parameter content respectively, when disagreeing with the indicated content of parameter of main device from device, can reply one and carry reference parameter requests for content information LMP_ReqRTDD_Service secretly, when main device is disagreed with the reference parameter content, can transmit one once again and carry the function setting information LMP_RTDD_Cfg of new reference parameter content secretly.Negotiation procedure represents then that up to replying the SLMP_Accepted that receives information from device both sides consult success, will use the content of parameter of the last indication of main device from device.On the contrary, if reply a refusal information SLMP_Not_Accepted from device, represent that then 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, 2 of two parameter lengths (bit), with the time slot is unit, provide the maximum that to accept tentative time division multiplexing time slot interval and minimum value to main device respectively, or provide respectively and can accept the 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 unit with the time slot by 2 bit representations, respectively interval the and size of time slot window initiatively of the tentative time division multiplexing time slot of indication; 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 in view of the above from device initiatively when the time slot window finishes; Parameters R TDD_TokenAddr length is 1, be used to refer in the next initiatively time slot window and other have the active transmission function from the transmission sequence between the device.In addition, according to parameters R TDD_TokenAddr, each adjusts the order that transmits package from device voluntarily at each active time slot window.
Please refer to Fig. 8 to Fig. 9, Fig. 8 to Fig. 9 is used for closing the information exchange sequential chart of active transmission function for the present invention.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 then responded the MLMP_StopRTDD_Accepted that ends to receive information and is informed from device and agree described request.In Fig. 9, main device transmits an abort request information MLMP_StopRTDD_Service, requirement is ended the active transmission function from device, then responds main device one end to receive information SLMP_StopRTDD_Accepted and then end the active transmission function from device.
Preferably, (Link Management Protocol, LMP) layer are implemented in the active transmission function of radio layer with management more than to be used for starting or to close the information of active transmission function and relative program thereof and be the LMP Link Manager Protocol that applies to Bluetooth system.
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, set up earlier transmission sequence mutually 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 each all assigns a logical transport address (Logic TransportAddress by main device from device in the Bluetooth system, Lt_Addr), therefore can utilize logical transport address and aforementioned parameters RTDD_TokenAddr from device, set up transmission sequence from device with other.For clearer exposure notion 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 first embodiment of the invention one main device MAS reaches from the transmission time sequence schematic diagram of device SLV1～SLV4.The communication time of Figure 10 comprises two tentative time division multiplexing time slot intervals of demonstration, one comprises an active time slot window 1 (RTDDWin_1) and a non-active time slot window 1 (BTDDWin_1), another then comprises an 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),, give main device MAS from bluetooth packages that device transmits the DM1 type in regular turn with other with from installing SLV1 as start end.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 of balance from device, the present invention can be at every next initiatively time slot window, from device in regular turn, 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 transmit the bluetooth package in regular turn from device SLV3, SLV4 and SLV1, thereafter three initiatively time slot windows (not being shown among the figure) more respectively by working as start end from device SLV3, SLV4 and SLV1.Can adjust transmission sequence automatically at each active time slot window according to logical transport address and the parameters R TDD_TokenAddr of oneself 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 that from device SLV1～SLV4 and main device MAS its related notion is as follows 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.At first, finish first " main one from " time slot of back at active time slot window, SLV1～SLV4 all listens to first package that main device MAS sends out from device, next can be divided into three kinds of situations:
Situation one: if first package that main device MAS sends out, the logical transport address that it comprises does not belong to any logical transport address from device SLV1～SLV4, when perhaps first package is a broadcasting packages, then 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 logical transport address Lt_Addrl～Lt_Addr4 respectively from device, and the logical transport address of first package is Lt_Addr5, then represents all to transmit success from the package of device SLV1～SLV4, and promptly successful payment received is confirmed (PositivelyAcknowledged).
Situation two: if when the logical transport address that comprises of first package is arbitrary logical transport address from device SLV1～SLV4, just be illustrated in the active time slot window, (i) needed to retransmit package by what first package was indicated from device, promptly payment received is not confirmed (Negatively Acknowledged); The package from device of (ii) more preceding transmission package transmits successfully; (iii) later transmission package from the device must enter one the inquiry wait state, 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 success from the package of device SLV1～SLV4.For instance, if the logical transport address of first package is Lt_Addr3, then represent all to transmit success 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 before next active time slot window begins, from installing the package that SLV1～SLV4 does not all listen to any main device, then represent all successfully to be received from the package of device SLV1～SLV4, 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 steps and principle at least, being example from device SLV2:
(1) after active time slot window finishes, enters the state that just listens the bluetooth package of fetching autonomous device MAS;
When (2) in non-active time slot window, not listening to any package, judge that transmitting package is successful payment received state;
(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, judges that transmitting the bluetooth package is successful payment received state;
(4) in successfully listening to first bluetooth package, and it judges that transmitting package is successful payment received state when being a broadcast-type package;
(5) in successfully listening to first bluetooth package, when it also comprises logical transport address Lt_Addr2, judge that transmitting package needs to retransmit;
(6), when it comprises logical transport address in the scope of a Lt_Addr2, enter an inquiry wait state in successfully listening to first bluetooth package; And
When (7) in the inquiry wait state, receiving a bluetooth package from described main device, follow the judgment principle of (3), (5) and (6).
Transmission sequence is represented after device SLV2 in " the logical transport address that exceeds Lt_Addr2 " of aforementioned (3), or does 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 be originally " from-lead " time slot.Figure 11 transmits package with different being in adopting than short access code (as 32) from device of the second and the 4th cis-position of Figure 10, i.e. package Pkt1～Pkt4 of Figure 11.Because in the second and the 4th time slot, knownly be in a delivery status from device yet and can't listen to any package, so the present invention can not have influence on known running from installing 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 affirmation 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, with control radio-frequency (RF) transceiver 1210, baseband circuit 1220 and storage device 1240.Program code 1250 comprises a radio protocol layers 1252, a controlling links (Link Control, 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 the main device or from installing about the active transmission function operations.
When communication device 1200 is used for a bluetooth from when device, active transmission function program 1258 is mainly used to realization flow 20 to be allowed and can initiatively transmit package to main device during active time slot window from device.In the case, the radio protocol layers 1252 main radio-frequency (RF) transceiver 1210 that cooperate are carried out frequency synthesis and data transaction, to transmit and to receive package on physical channel.LCP layer 1254 main ligand frequency circuit 1220 are responsible for the identification time slot for transmitting or receiving slot, reach 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 the relevant parameter of active transmission function in addition, as described above parameter 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.Because communication device 1200 utilizes active transmission function program 1258 to can be used to realization flow 20, so the detail operations 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, LCP layer 1254 main ligand frequency circuit 1220 are responsible for the identification time slot for transmitting or receiving slot, reach and set initiatively time slot window.LMP Link Manager Protocol layer 1256 is used for producing the startup of active transmission function and closing information or the like, with the active transmission function that requires to start, close and change from device.Because communication device 1200 utilizes active transmission function program 1258 to can be used to realization flow 30, so the detail operations 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 that is used to inquire, therefore can save 50% Radio Resource approximately compared to known technology.In addition, the present invention from the device can use the package of short access code simultaneously and do not influence and known from the device compatibility, can further save Radio Resource.
The above only is 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. one kind can be reduced the transmission method that Radio Resource expends, it is characterized in that, described transmission method be used for a Bluetooth system one from the device, described transmission method comprises:
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 the described active time slot window is the transmission time slot.
2. transmission method as claimed in claim 1, it is characterized in that, on described communication time, set the function setting information that described active time slot window comprises that the main device according to described Bluetooth system is produced, on described communication time, set described active time slot window;
Described transmission method transmits the main device of a bluetooth package to described Bluetooth system during being included in described active time slot window in addition;
Wherein, described bluetooth package comprises that a length is less than 68 access code.
3. transmission method as claimed in claim 2 is characterized in that, after described transmission method is included in described active time slot window end in addition, carries out the payment received of a group and implicit expression and confirms program;
After the payment received affirmation program of carrying out described group and implicit expression after the 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 affirmation 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 in a default time limit, not listening to any package from described main device, judge that the bluetooth package that is transmitted 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, judges that the described bluetooth package that is transmitted is successful payment received state;
In successfully listening to described first bluetooth package, and described first bluetooth package judges that the described bluetooth package that is transmitted is successful payment received state when being a broadcast-type package;
In successfully listening to described first bluetooth package, and described first bluetooth package judges that the described bluetooth package that is transmitted needs to retransmit when comprising an order index identical with described order index;
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
In described inquiry wait state, receive a bluetooth package, and described bluetooth package comprises one when exceeding the order index of described order index, judge that the described bluetooth package that is transmitted is successful payment received state from described main device;
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 the tentative time division multiplexing time slot interval of setting one-period property in addition, 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:
Predetermined a transmission in described active time slot window transmitted the main device of package to described Bluetooth system in the 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. one kind can be reduced the communication device that Radio Resource expends, it is characterized in that, described communication device be used for a Bluetooth system one from the device, described communication device comprises:
One central processing unit is used for carrying out a program code; And
One storage device is coupled to described central processing unit, is used for storing described program code;
Wherein said program code comprises:
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 the described active time slot window is the transmission time slot.
6. communication device as claimed in claim 5, it is characterized in that, on described communication time, set the function setting information that described active time slot window comprises that the main device according to described Bluetooth system is produced, on described communication time, set described active time slot window;
Described program code transmits the main device of a bluetooth package to described Bluetooth system during being included in described active time slot window in addition;
Wherein, described bluetooth package comprises that a length is less than 68 access code.
7. communication device as claimed in claim 6 is characterized in that, after described program code is included in described active time slot window end in addition, carries out the payment received of a group and implicit expression and confirms program;
After the payment received affirmation program of carrying out described group and implicit expression after the 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 affirmation 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 in a default time limit, not listening to any package from described main device, judge that the bluetooth package that is transmitted 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, judges that the described bluetooth package that is transmitted is successful payment received state;
In successfully listening to described first bluetooth package, and described first bluetooth package judges that the described bluetooth package that is transmitted is successful payment received state when being a broadcast-type package;
In successfully listening to described first bluetooth package, and described first bluetooth package judges that the described bluetooth package that is transmitted needs to retransmit when comprising an order index identical with described order index;
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
In described inquiry wait state, receive a bluetooth package, and described bluetooth package comprises one when exceeding the order index of described order index, judge that the described bluetooth package that is transmitted is successful payment received state from described main device;
Wherein, described order index is a logical transport address.
8. communication device as claimed in claim 5 is characterized in that, described program code comprises the tentative time division multiplexing time slot interval of setting one-period property in addition, 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:
Predetermined a transmission in described active time slot window transmitted the main device of package to described Bluetooth system in the 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. one kind can be reduced the transmission method that Radio Resource expends, and it 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 is determined, produce a function setting information;
Transmit at least one to described Bluetooth system of described function setting information, describedly at least onely set described active time slot window from device to allow from device; 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 is included in described active time slot window end in addition, carries out the payment received of a group and implicit expression and confirms program;
Described transmission method comprises the tentative time division multiplexing time slot interval that determines one-period property in addition, and it comprises described active time slot window;
Described transmission method comprises in addition:
The quantity and one that is decided by to carry out in the time slot window initiatively package transmission transmission sequence that goes out to begin from device; And
The parameter of inserting the described transmission sequence that goes out to begin is 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. one kind can be reduced the communication device that Radio Resource expends, and it is characterized in that, described communication device is used for a main device of a Bluetooth system, and described communication device comprises:
One central processing unit is used for carrying out a program code; And
One storage device is coupled to described central processing unit, is used for storing described program code;
Wherein said program code 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 is determined, produce a function setting information;
Transmit at least one to described Bluetooth system of described function setting information, describedly at least onely set described active time slot window from device to allow from device; 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.
12. communication device as claimed in claim 11 is characterized in that, described program code is listened to the result according to package after being included in described active time slot window end in addition, carries out the payment received of a group and implicit expression and confirms program;
Described program code comprises the tentative time division multiplexing time slot interval that determines one-period property in addition, and it comprises described active time slot window;
Described program code comprises in addition:
The quantity and one that is decided by to carry out in the time slot window initiatively package transmission transmission sequence that goes out to begin from device; And
The parameter of inserting the described transmission sequence that goes out to begin is 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.
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| CN 200910180130 CN102035574B (en) | 2009-09-29 | 2009-09-29 | Transmission method capable of reducing radio resource consumption and related device thereof |
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| US20030003867A1 (en) * | 2000-05-22 | 2003-01-02 | Harumi Kawamura | Data transmission method, data transmission system, and data transmission device |
| FI20011359A0 (en) * | 2001-06-25 | 2001-06-25 | Nokia Corp | Reduction of interference |
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