CN101621324A - Coordination method for communication resources and Bluetooth communication terminal - Google Patents
Coordination method for communication resources and Bluetooth communication terminal Download PDFInfo
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- CN101621324A CN101621324A CN200810116018A CN200810116018A CN101621324A CN 101621324 A CN101621324 A CN 101621324A CN 200810116018 A CN200810116018 A CN 200810116018A CN 200810116018 A CN200810116018 A CN 200810116018A CN 101621324 A CN101621324 A CN 101621324A
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Abstract
The invention provides a coordination method for communication resources, which comprises the following steps: resetting a link clock of a Bluetooth unit to synchronize the link lock with a system clock of a wireless communication system unit; inquiring an uplink time slot and a downlink time slot of a wireless communication system scheduled by the wireless communication system unit; and in the uplink time slot of a non-uplink pilot time slot of the wireless communication system, determining a non-conflicting time slot not conflicting with a transmission time slot and a receiving time slot of the Bluetooth unit, and scheduling transmission data by the wireless communication system unit in the non-conflicting time slot. The invention also provides a Bluetooth communication terminal, which still can substantially maintain the original experience effect of a user at the same time of successfully avoiding interference of a TD on Bluetooth.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of coordination approach and Bluetooth communication terminal of the communication resource.
Background technology
Along with development of Communication Technique, multiple wireless system coexistence becomes the set trend of wireless communication technology development, and producing the multi-module mobile terminal with multiple wireless network access capability has also become inevitable.This development trend had both helped individual subscriber, also helped enterprises such as operator and service provider.But how making these different coexistence of communication systems but is the problem that terminal manufacturer must face and solve.
The finiteness of frequency spectrum resource has determined that the frequency spectrums of operation of some systems must be overlapping or adjacent, and uses the identical frequency spectrum of part will inevitably cause the phase mutual interference.In fact, communication system adjacent or that frequency interval is nearer also can cause the phase mutual interference, this is because the imperfection of communication system causes, this be because, because the imperfection of communication system, signal emission in the frequency band can leak into outside the band, causes the outer interference signal of band, thereby influences other nearer communication system of frequency interval.
TD-SCDMA (TD SDMA) system of one of 3G (3G (Third Generation) Moblie) system is obtaining widespread deployment and application, carries out exchanges data and bluetooth (BT) technology has been applied to numerous medium-to-high grade communication terminals in order to equipment such as same earphone, portable computers.Bluetooth works in the 2.4GHz frequency range, and the 2.3-2.4GHz frequency range is the additional frequency range of TD-SCDMA system, therefore, bluetooth will produce mutual interference mutually with using the TD-SCDMA coexistence of systems that replenishes frequency range, and does not consider their coexistence problems at the beginning of the two exploitation.Since the transfer of data of BT without any wrong security mechanisms such as scheduling, error correction, repeating transmission, therefore, the data transmission fault that any interference causes all directly is reflected on the user experience, such as, because the interference of TD system, cause the BT data transmission fault, thus cause may be bluetooth earphone produce the user intolerable " " sound.
Therefore, in the process that realizes technical solution of the present invention, discovery will solve the coexistence problems of bluetooth and TD-SCDMA system, must design a kind of coexistence co-ordination mechanism, avoids the phase mutual interference of the two with maximization.
Summary of the invention
The purpose of the embodiment of the invention provides a kind of coordination approach and Bluetooth communication terminal of the communication resource, solves the coexistence problems of bluetooth and TD-SCDMA system, avoids the phase mutual interference of the two.
According to an aspect of the present invention, provide a kind of coordination approach of the communication resource, having comprised:
Link clock to bluetooth unit resets, and makes the system clock of described link clock and wireless communication system unit synchronous;
Inquire about the uplink and downlink time slot of the wireless communication system of described wireless communication system cell scheduling;
In the ascending time slot of the non-uplink pilot time slot of described wireless communication system, determine sending time slots and the not afoul time slot that do not conflict of receiving slot with described bluetooth unit, in the described time slot that do not conflict, the scheduling of data can be launched in described wireless communication system unit.
Preferably, before the described step that the link clock of bluetooth unit is resetted, also comprise:
Inquire about the configuration status of described bluetooth unit;
If the configuration status of described bluetooth unit is the slave unit state, then carry out principal and subordinate's conversion operations, make the configuration status of described bluetooth unit be converted to master status.
Preferably, described method also comprises: according to the preset time cycle, repeat the described step that the link clock of bluetooth unit is resetted.
Preferably, described wireless communication system unit is the TD-SCDMA unit, describedly determines and the step of the sending time slots and the not afoul time slot that do not conflict of receiving slot of described bluetooth unit, specifically comprises:
Determine the frame common period of described TD-SCDMA unit and described bluetooth unit;
According to the allocation proportion of the uplink and downlink time slot of described TD-SCDMA, determine in the described frame common period and the sending time slots of described bluetooth unit and the ascending time slot of the afoul described TD-SCDMA of receiving slot;
In each described frame common period, forbid ascending time slot scheduled transmission data at the non-uplink pilot time slot of described afoul described TD-SCDMA.
Preferably, described frame common period is total duration of three TD-SCDMA subframes or total duration of four Bluetooth frame.
Preferably, the ascending time slot of described afoul described TD-SCDMA has the time period that sending time slots or receiving slot with described bluetooth unit coincide.
Preferably, described wireless communication system unit is TDD LTE unit.
Preferably, described method also comprises: with the sending time slots of described bluetooth unit and the uplink pilot time slot of the afoul described wireless communication system of receiving slot, make not scheduled transmission data of described wireless communication system unit.
According to another aspect of the present invention, also provide a kind of Bluetooth communication terminal, comprised bluetooth unit and wireless communication system unit, also comprised:
Clock synchronization module is used for: the link clock to described bluetooth unit resets, and makes the system clock of described link clock and described wireless communication system unit synchronous;
The time slot enquiry module is used for: the uplink and downlink time slot of inquiring about the wireless communication system of described wireless communication system cell scheduling;
Adjusting module, be used for: at the ascending time slot of the non-uplink pilot time slot of described wireless communication system, determine sending time slots and the afoul time slot that conflicts of receiving slot with described bluetooth unit, make described wireless communication system unit in described conflict time slot scheduled transmission data not.
Preferably, described communication terminal also comprises: principal and subordinate's modular converter is used for: before the link clock to described bluetooth unit resets, inquire about the configuration status of described bluetooth unit; If the configuration status of described bluetooth unit is the slave unit state, then carry out principal and subordinate's conversion operations, make the configuration status of described bluetooth unit be converted to master status.
Preferably, described wireless communication system unit is TD-SCDMA unit or TDD LTE unit.
There is following technique effect at least in the embodiment of the invention:
1) in the TD-SCDMA system to the influential ascending time slot of bluetooth unit, forbid launching data, thereby avoid of the interference of TD-SCDMA system, and do not need to change any hardware system of BT or TD system bluetooth unit, with low cost;
2) solve the two coexistence problems by the software adjustment, cost is the spectrum efficiency of losing the TD system a little, but loses lessly, when successfully avoiding TD to bluetooth interference, is not enough to reduce user's experience effect.
Description of drawings
Fig. 1 is the flow chart of steps of the inventive method embodiment;
Fig. 2-7 adjustment result schematic diagram of being done according to different uplink and downlink timeslot allocation proportions for the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, specific embodiment is described in detail below in conjunction with accompanying drawing.
Have bluetooth unit and adopting on the portable terminal of TD-SCDMA system, if the TD-SCDMA system has adopted the additional frequency range of 2.3-2.4GHz, will exert an influence to bluetooth unit, the reason that exerts an influence, be that portable terminal TD-SCDMA system can exert an influence to the transmitting-receiving blue-teeth data in the emission data of described ascending time slot when the transmission of the ascending time slot of TD-SCDMA system and bluetooth unit and receiving slot are overlapping.
The method of the embodiment of the invention forbids launching described emission data at the influential ascending time slot of TD-SCDMA system just, thereby avoids the interference of TD-SCDMA system to bluetooth unit.
Fig. 1 is the flow chart of steps of the inventive method embodiment, comprising:
Among Fig. 2-7, M represents the sending time slots of BT, and S represents receiving slot, and op represents the time slot that BT does not take; Tx represents ascending time slot (end side that relatively moves is a transmission time slot, and the also available arrow that makes progress is represented among the figure), and rx represents the descending time slot (end side that relatively moves is a receiving slot, and also available downward arrow is represented among the figure) of TD system; All can produce and disturb with sending time slots M, the equitant ascending time slot of receiving slot S (can be described as the ascending time slot that conflicts) of BT on the TD-SCDMA radio frames, therefore can not launch data at these conflict ascending time slots to BT.
It needs to be noted, because the characteristics of TD system itself, in the not emission of scheduled for executing uplink synchronous code of UpPTS (ascending pilot frequency) time slot 210 (or 220) of the special time slot of TD system, then can not the scheduled transmission data at its ascending time slot 211 (or 221,222) subsequently; Other time slot is carried out by former scheduling of resource.
Fig. 2-7 adjustment result schematic diagram of being done according to different uplink and downlink timeslot allocation proportions for the embodiment of the invention.The TD-SCDMA system adjusts the scheduling of data transmission time interval resource respectively according to following situation, (a following legend and a frame common period that is illustrated as BT frame and TD-SCDMA system subframe, and with this common period repetition):
A) the uplink and downlink timeslot resource allocation is 1: 5 or 2: 4 (Fig. 2):
On TD-SCDMA subframe N and N+2, the TD-SCDMA system is in the not emission of scheduled for executing uplink synchronous code of the UpPTS of special time slot time slot, in subsequently ascending time slot scheduled transmission data not; Other time slot is carried out by former scheduling of resource.
B) the uplink and downlink timeslot resource allocation is 3: 3 (Fig. 3):
On TD-SCDMA subframe N, N+2, the TD-SCDMA system is in the not emission of scheduled for executing uplink synchronous code of the UpPTS of special time slot time slot, in subsequently ascending time slot scheduled transmission data not;
On TD-SCDMA subframe N+1, TD-SCDMA system scheduled transmission data not on ascending time slot TS3;
C) the uplink and downlink timeslot resource allocation is 4: 2,5: 1 or 6: 0 (Fig. 4):
On TD-SCDMA subframe N, the TD-SCDMA system is in the not emission of scheduled for executing uplink synchronous code of the UpPTS of special time slot time slot, in subsequently ascending time slot scheduled transmission data not;
On TD-SCDMA subframe N+1, TD-SCDMA system scheduled transmission data not on ascending time slot TS3, TS4;
On TD-SCDMA subframe N+2, TD-SCDMA system scheduled transmission data not on ascending time slot TS1-TS3;
The proposition method is not limited to above specific embodiment, for some balances on the obtained performance, can do suitable adjustment according to the proposition method, the UpPTS time slot that will conflict with BT is adjusted into and can launches, because the launch time of UpPTS is extremely short, therefore, can not cause obvious interference, but can improve the spectrum efficiency of TD-SCDMA BT.Some embodiment that adjust according to above method are:
1) the uplink and downlink timeslot resource allocation is 3: 3 (Fig. 5):
On TD-SCDMA subframe N, TD-SCDMA system scheduled transmission data not on ascending time slot TS1;
On TD-SCDMA subframe N+1, TD-SCDMA system scheduled transmission data not on ascending time slot TS3;
On TD-SCDMA subframe N+2, the TD-SCDMA system is in the not emission of scheduled for executing uplink synchronous code of the UpPTS of special time slot time slot, in subsequently ascending time slot scheduled transmission data not;
2) the uplink and downlink timeslot resource allocation is 4: 2 (Fig. 6):
The time interval resource of the subframe N of TD-SCDMA system is adjusted into, in the still emission of scheduled for executing uplink synchronous code of the UpPTS of special time slot time slot, scheduled transmission data not on ascending time slot TS1;
On TD-SCDMA subframe N+1, TD-SCDMA system scheduled transmission data not on ascending time slot TS3, TS4;
On TD-SCDMA subframe N+2, TD-SCDMA system scheduled transmission data not on ascending time slot TS1-TS3;
3) the uplink and downlink timeslot resource allocation is 5: 1 (Fig. 7):
The time interval resource of the subframe N of TD-SCDMA system is adjusted into, in the still emission of scheduled for executing uplink synchronous code of the UpPTS of special time slot time slot, scheduled transmission data not on ascending time slot TS1, TS5;
On TD-SCDMA subframe N+1, TD-SCDMA system scheduled transmission data not on ascending time slot TS3, TS4;
On TD-SCDMA subframe N+2, TD-SCDMA system scheduled transmission data not on ascending time slot TS1-TS3;
As from the foregoing, the flexible strategy that adopts the inventive method embodiment to provide is revised, and can obtain the balance of TD system spectral efficiency and compossibility energy.
In addition, the embodiment of the invention also provides a kind of Bluetooth communication terminal, comprises bluetooth unit and TD-SCDMA unit, also comprises:
Clock synchronization module is used for: the link clock to described bluetooth unit resets, and makes the system clock of described link clock and described TD-SCDMA unit synchronous;
The time slot enquiry module is used for: the uplink and downlink time slot of inquiring about the TD-SCDMA of described TD-SCDMA cell scheduling;
Adjusting module is used for: the ascending time slot to described TD-SCDMA is adjusted, with the sending time slots of described bluetooth unit and the ascending time slot of the afoul described TD-SCDMA of receiving slot, forbid the scheduled transmission data.
Principal and subordinate's modular converter is used for: before the link clock to described bluetooth unit resets, inquire about the configuration status of described bluetooth unit; If the configuration status of described bluetooth unit is the slave unit state, then carry out principal and subordinate's conversion operations, make the configuration status of described bluetooth unit be converted to master status.
As from the foregoing, the embodiment of the invention has proposed a kind of isochronous resources coordination system for solving the coexistence problems of bluetooth and TD-SCDMA, comprise synchronously and resource coordination,
Synchronously: BT and TD-SCDMA system are initiated to finish by BT synchronously, by the synchronous TD of BT system.
Resource coordination: resource coordination is finished by the TD-SCDMA system, the TD system is according to existing resource allocation conditions, mainly be uplink and downlink timeslot configuration, adopt different distributing slot resources to readjust scheme, the transmitting-receiving of BT system is caused interference with the up emission of avoiding the TD system.
The embodiment of the invention is that advantage is:
1) in the TD-SCDMA system to the influential ascending time slot of bluetooth unit, forbid launching data, thereby avoid of the interference of TD-SCDMA system, and do not need to change any hardware system of BT or TD system bluetooth unit, with low cost;
2) solve the two coexistence problems by the software adjustment, cost is the spectrum efficiency of losing the TD system a little, but loss is very little, when successfully avoiding TD to bluetooth interference, is not enough to reduce user's experience effect.
In addition, the embodiment of the invention is not limited to the TD-SCDMA system, also can be applicable to the system with the afoul TDD LTE of bluetooth (LongTermEvolution, 3G Long Term Evolution), and its application principle is identical.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (11)
1. the coordination approach of a communication resource is characterized in that, comprising:
Link clock to bluetooth unit resets, and makes the system clock of described link clock and wireless communication system unit synchronous;
Inquire about the uplink and downlink time slot of the wireless communication system of described wireless communication system cell scheduling;
In the ascending time slot of the non-uplink pilot time slot of described wireless communication system, determine sending time slots and the not afoul time slot that do not conflict of receiving slot with described bluetooth unit, in the described time slot that do not conflict, the scheduling of data can be launched in described wireless communication system unit.
2. method according to claim 1 is characterized in that, before the described step that the link clock of bluetooth unit is resetted, also comprises:
Inquire about the configuration status of described bluetooth unit;
If the configuration status of described bluetooth unit is the slave unit state, then carry out principal and subordinate's conversion operations, make the configuration status of described bluetooth unit be converted to master status.
3. method according to claim 1 is characterized in that, also comprises: according to the preset time cycle, repeat the described step that the link clock of bluetooth unit is resetted.
4. according to claim 1,2 or 3 described methods, it is characterized in that described wireless communication system unit is the TD-SCDMA unit, describedly determine and the step of the sending time slots and the not afoul time slot that do not conflict of receiving slot of described bluetooth unit, specifically comprise:
Determine the frame common period of described TD-SCDMA unit and described bluetooth unit;
According to the allocation proportion of the uplink and downlink time slot of described TD-SCDMA, determine in the described frame common period and the sending time slots of described bluetooth unit and the ascending time slot of the afoul described TD-SCDMA of receiving slot;
In each described frame common period, forbid ascending time slot scheduled transmission data at the non-uplink pilot time slot of described afoul described TD-SCDMA.
5. method according to claim 4 is characterized in that, described frame common period is total duration of three TD-SCDMA subframes or total duration of four Bluetooth frame.
6. method according to claim 4 is characterized in that, the ascending time slot of described afoul described TD-SCDMA has the time period that sending time slots or receiving slot with described bluetooth unit coincide.
7. according to claim 1,2 or 3 described methods, it is characterized in that described wireless communication system unit is TDD LTE unit.
8. according to claim 1,2 or 3 described methods, it is characterized in that, also comprise: with the sending time slots of described bluetooth unit and the uplink pilot time slot of the afoul described wireless communication system of receiving slot, make not scheduled transmission data of described wireless communication system unit.
9. a Bluetooth communication terminal comprises bluetooth unit and wireless communication system unit, it is characterized in that, also comprises:
Clock synchronization module is used for: the link clock to described bluetooth unit resets, and makes the system clock of described link clock and described wireless communication system unit synchronous;
The time slot enquiry module is used for: the uplink and downlink time slot of inquiring about the wireless communication system of described wireless communication system cell scheduling;
Adjusting module, be used for: at the ascending time slot of the non-uplink pilot time slot of described wireless communication system, determine sending time slots and the afoul time slot that conflicts of receiving slot with described bluetooth unit, make described wireless communication system unit in described conflict time slot scheduled transmission data not.
10. communication terminal according to claim 9 is characterized in that, also comprises: principal and subordinate's modular converter is used for: before the link clock to described bluetooth unit resets, inquire about the configuration status of described bluetooth unit; If the configuration status of described bluetooth unit is the slave unit state, then carry out principal and subordinate's conversion operations, make the configuration status of described bluetooth unit be converted to master status.
11. communication terminal according to claim 9 is characterized in that, described wireless communication system unit is TD-SCDMA unit or TDD LTE unit.
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| CN200810116018A CN101621324A (en) | 2008-07-01 | 2008-07-01 | Coordination method for communication resources and Bluetooth communication terminal |
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| CN200810116018A CN101621324A (en) | 2008-07-01 | 2008-07-01 | Coordination method for communication resources and Bluetooth communication terminal |
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| CN101977388A (en) * | 2010-11-01 | 2011-02-16 | 华为技术有限公司 | Method, device and system for controlling uplink interference signal |
| WO2011116533A1 (en) * | 2010-03-24 | 2011-09-29 | Mediatek Inc. | Synchronized activity bitmap generation method for co-located coexistence (clc) devices |
| WO2012048466A1 (en) * | 2010-10-14 | 2012-04-19 | 中兴通讯股份有限公司 | Method and user equipment for receiving system message |
| WO2012106845A1 (en) * | 2011-02-11 | 2012-08-16 | 富士通株式会社 | Method and device for communication service scheduling, and communication system |
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| CN106559734A (en) * | 2015-09-28 | 2017-04-05 | 展讯通信（上海）有限公司 | Bluetooth data transfer method and device |
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| US9265056B2 (en) | 2008-09-05 | 2016-02-16 | Mediatek Inc. | Methods for responding to co-located coexistence (CLC) request from a mobile electronic device and communications apparatuses capable of controlling multi-radio coexistence |
| US8730853B2 (en) | 2008-09-05 | 2014-05-20 | Mediatek Inc. | Methods for responding to co-located coexistence (CLC) request from a mobile electronic device and communications apparatuses capable of controlling multi-radio coexistence |
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| CN101977388A (en) * | 2010-11-01 | 2011-02-16 | 华为技术有限公司 | Method, device and system for controlling uplink interference signal |
| WO2012106845A1 (en) * | 2011-02-11 | 2012-08-16 | 富士通株式会社 | Method and device for communication service scheduling, and communication system |
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| CN103098394A (en) * | 2011-09-01 | 2013-05-08 | 华为技术有限公司 | Method, device and communication system for handling signal collision |
| CN103098394B (en) * | 2011-09-01 | 2014-11-05 | 华为技术有限公司 | Method, device and communication system for handling signal collision |
| CN102970752B (en) * | 2011-09-01 | 2017-08-29 | 马维尔国际贸易有限公司 | For the packet type coexisted the deception between various wireless communication technology |
| CN103947279A (en) * | 2011-09-30 | 2014-07-23 | 英特尔公司 | Reducing interference in collocated radios |
| CN103947279B (en) * | 2011-09-30 | 2018-08-21 | 英特尔公司 | Method and system for reducing the interference in juxtaposition radio |
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| CN106559734B (en) * | 2015-09-28 | 2020-03-20 | 展讯通信（上海）有限公司 | Bluetooth data transmission method and device |
| CN111491283A (en) * | 2015-09-28 | 2020-08-04 | 展讯通信（上海）有限公司 | Bluetooth data transmission method and device |
| CN111491283B (en) * | 2015-09-28 | 2022-06-24 | 展讯通信（上海）有限公司 | Bluetooth data transmission method and device |
| CN114050851A (en) * | 2021-10-20 | 2022-02-15 | 珠海全志科技股份有限公司 | Bluetooth communication method and device supporting multiple antenna transceiving channels |
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