CN201204586Y - Power consumption control circuit and relay unit for TDMA system - Google Patents
Power consumption control circuit and relay unit for TDMA system Download PDFInfo
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- CN201204586Y CN201204586Y CNU2008200471067U CN200820047106U CN201204586Y CN 201204586 Y CN201204586 Y CN 201204586Y CN U2008200471067 U CNU2008200471067 U CN U2008200471067U CN 200820047106 U CN200820047106 U CN 200820047106U CN 201204586 Y CN201204586 Y CN 201204586Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model provides a relay unit for a TDMA system, wherein a coupling circuit receives an input signal, and couples and transforms into a coupling signal; a synchronization acquisition module is connected with the coupling circuit; an input end of a volumetric analysis module is connected with the synchronization acquisition module; to receive synchronization information to determine the arrival time of a time slot; the other input end is connected with the coupling circuit, to detect the capacity of the arrival time slot to generate a detection result signal; an input end of a link control circuit is connected with the volumetric analysis module, the other input end is connected with the synchronization acquisition module, and outputs control signals; a amplifying circuit receives the control signals, opens the arrival time slot and controls the close or open of the opened time slot, and amplifies input signals of the time slot. The utility model also provides a power control circuit. By means of the utility model, the system power consumption can be reduced effectively.
Description
Technical field
The utility model relates to the TDMA field, relates in particular to power control circuit and TU Trunk Unit in a kind of tdma system.
Background technology
Optimization in order to realize that the sub-district covers in the mobile communication system usually needs to introduce direct multiplying arrangement and extends covering, and the direct multiplying arrangement of this kind is called as the repeater.In the TD-SCDMA communication system, the design of traditional repeater is as follows.
See also Fig. 1, a kind of repeater comprises amplifying circuit 11 in the prior art, acquisition module 12, and controlling links circuit 13 synchronously.Up/descending input signal that 11 pairs of amplifying circuits enter the repeater carries out linear amplification; The TD signal that synchronous 12 pairs of acquisition modules enter the repeater is handled to obtain synchronizing information; According to synchronizing information, 13 pairs of amplifying circuits of controlling links circuit 11 carry out the unlatching or the closing control of Uplink/Downlink.Usually, controlling links circuit 13 requires the repeater to close down link in ascending time slot, opens up link; In descending time slot, require the repeater to close up link, open down link.
But, as mentioned above, because link control circuit 13 is controlled Uplink/Downlink by last/descending time slot usually in the prior art, just only carry out the differentiation of uplink and downlink of signals, in the upstream or downstream time slot on/control of descending amplifying circuit 11 all do not change, even do not have signal to pass through this moment fully, noise and consumed energy are still amplified in the repeater, have brought the significantly raising of the significant wastage and the operation cost of resource thus.
The utility model content
The utility model provides power control circuit and the TU Trunk Unit in a kind of tdma system, can effectively reduce the power consumption of system.
TU Trunk Unit in the tdma system that the utility model provides comprises:
Coupling circuit receives the input signal of primary path, and this input signal is coupled and changes, and produces coupled signal;
Acquisition module is connected with described coupling circuit synchronously, receives described coupled signal, handles the back and produces synchronizing information;
The capacity analysis module, an input of described capacity analysis module is connected with described synchronous acquisition module, receives described synchronizing information, determines the arrival moment of time slot; Another input links to each other with described coupling circuit, receives described coupled signal, detects the capacity that reaches time slot constantly, produces the testing result signal; And
The controlling links circuit, an input of described controlling links circuit is connected with described capacity analysis module, and another input is connected with described synchronous acquisition module, and output is exported control signal according to described testing result signal and/or described synchronizing information;
Amplifying circuit is connected with described controlling links circuit, receives described control signal, and the described time slot constantly that arrives is opened; And the arrive closure or openness state of time slot constantly of the control described arrival of having opened; And will the input signal of described time slot be amplified.
Power control circuit in the tdma system that the utility model provides comprises: synchronous acquisition module, controlling links circuit and capacity analysis module;
Described synchronous acquisition module is connected with coupling circuit, receives coupled signal, handles, and produces synchronizing information;
An input of described capacity analysis module is connected with described synchronous acquisition module, receive described synchronizing information, determine the arrival moment of time slot, another input links to each other with described coupling circuit, receive coupled signal and be determined to the capacity that reaches time slot constantly, produce the testing result signal;
An input of described controlling links circuit is connected with described capacity analysis module, another input is connected with described synchronous acquisition module, according to described capacity information and/or described synchronizing information output control signal, the described time slot constantly that arrives is opened, and controlled the closure or openness state of the described arrival arrival time slot of having opened constantly.
Unlike the prior art, it is few that the utility model takies time slot when utilizing the tdma system low capacity, take the many characteristics of time slot during high power capacity, detect the control of the capacity realization of time slot by the capacity analysis module to time slot, with no matter the capacity height all keeps the way of the prior art of time slot unlatching to compare, reduced power consumption effectively; Simultaneously, the utility model takes every time slot to open earlier, detects capacity again, controls the method for this time slot switch or closure state at last, efficiently solve the problem that capacity check needs the time and then causes signal impairment, thereby make the utility model have validity when implementing more.
Description of drawings
Fig. 1 is the structural representation of repeater in the prior art;
Fig. 2 is the structural representation of power control circuit in the utility model;
Fig. 3 is the structural representation of TU Trunk Unit in the utility model;
Fig. 4 is the frame structure schematic diagram in the TD-SCDMA system;
Fig. 5 is the control chart of the power control circuit of prior art to signal;
Fig. 6 is the control chart of power control circuit of the present utility model to signal.
Embodiment
Power control circuit that the utility model provides and TU Trunk Unit is applicable in the communication system of Time Slot Occupancy amount with the signal volume change, below is that example is further described the utility model in conjunction with the accompanying drawings with the tdma system:
In tdma system, signal inserts with multi-access mode, and the different user between the same code word of same frequency can be distinguished by time slot usually.Because tdma system takies time slot usually when low capacity few, so the utility model is controlled the operating state of time slot by the detection to capacity in each time slot.
As shown in Figure 2, the utility model provides a kind of concrete structure of power control circuit.
As shown in Figure 2, this power control circuit comprises synchronous acquisition module 21, controlling links circuit 22 and capacity analysis module 23; Acquisition module 21 is connected with the coupling circuit of TU Trunk Unit synchronously, receives coupled signal, handles, and produces synchronizing information; An input of controlling links circuit 22 is connected with synchronous acquisition module, receive the synchronizing information of synchronous acquisition module, determine the arrival moment of time slot according to the synchronizing information of synchronous acquisition module 21, output control signal before detected time slot arrives places opening with arriving the described time slot constantly that arrives; An input of capacity analysis module 23 links to each other with synchronous acquisition module 21, in conjunction with the arrival moment of synchronizing information judgement time slot, another input links to each other with the coupling circuit of TU Trunk Unit, receives coupled signal, detect the capacity that reaches time slot constantly, output testing result signal; Controlling links circuit 22 also is connected with capacity analysis module 23, testing result signal and synchronizing information according to described capacity analysis module are exported the closure or openness state that control signal is controlled the arrival arrival time slot of having opened constantly, if current time slots does not have capacity, controlling links circuit 22 is closed this time slot with regard to indication mechanism so; If current time slots has capacity, controlling links circuit 22 keeps the opening of this time slot with regard to indication mechanism so.
In addition, in power control circuit, can also comprise identification module, be connected with synchronous acquisition module 21, synchronizing information by signal, obtain the arrival moment of each time slot, differentiate according to predetermined condition arriving the time slot constantly that arrives, and will differentiate result notification controlling links circuit 22 and capacity analysis module 23, if detected object, then controlling links circuit 22 and capacity analysis module 23 are carried out step mentioned above.
The power control circuit that the utility model provides can be applicable to various need carrying out in the equipment of power consumption control tdma system, and one typically is exemplified as in the TU Trunk Unit that is applied to tdma system.
In conjunction with Fig. 2, please refer to Fig. 3, this TU Trunk Unit comprises amplifying circuit 30, and the input signal in the up/descending time slot that enters TU Trunk Unit is carried out linear amplification; Coupling circuit 31 is coupled to input signal from primary path, and converts it to the signal form (as detection or sampling etc.) that synchronous acquisition module can be used, in order to follow-up signal analysis; Acquisition module 21 receives the coupled signal of coupling circuit 31 synchronously, this signal is handled, with the synchronizing information of picked up signal; Controlling links circuit 22 bases are the arrival moment of the synchronizing information judgement time slot of acquisition module 21 synchronously, exports control signal before detected time slot arrives, and the time slot that control amplifying circuit 30 will arrive the described arrival moment places opening; Capacity analysis module 23 links to each other with synchronous acquisition module 21, in the arrival moment in conjunction with synchronizing information judgement time slot, detects the time slot that reaches the next moment and whether has capacity; Controlling links circuit 22 also is connected with capacity analysis module 23, testing result signal and synchronizing information output control signal according to described capacity analysis module, closure or openness state by amplifying circuit 30 these time slots of having opened of control, if current time slots does not have capacity, controlling links circuit 22 just indicates amplifying circuit 30 to close this time slot so; If current time slots has capacity, controlling links circuit 22 just indicates amplifying circuit 30 to keep the opening of this time slot so.
In addition, in TU Trunk Unit, can also comprise identification module, be connected with synchronous acquisition cuicuit 21, synchronizing information by signal, obtain the arrival moment of each time slot, differentiate according to predetermined condition arriving the time slot constantly that arrives, and will differentiate result notification controlling links circuit 22 and capacity analysis module 23, if detected object, then controlling links circuit 22 and capacity analysis module 23 are carried out step mentioned above.
The structure of the TU Trunk Unit that the utility model provides is applicable in the various devices that transmission signals carried out relay, and common have repeater, a RRU (Regenerative Repeater Unit, regenerative repeating unit) etc.
Below set forth the power control circuit that the utility model provides and the operation principle of TU Trunk Unit.The coupling circuit of TU Trunk Unit is coupled to the input signal signal from primary path, and converts it to the signal form that synchronous acquisition module can be used, in order to follow-up signal analysis; Acquisition module receives coupled signal synchronously, signal is handled the output synchronizing information; Because the frame structure of signal normally has certain rule,, can determine the arrival moment of each time slot in conjunction with synchronizing information; Behind the controlling links circuit receiving synchronous information, before each time slot arrives, the output control signal will arrive the time slot constantly that arrives and place opening; Capacity analysis module receiving synchronous information detects the current time slots that has arrived the moment that arrives and whether has capacity, and output testing result signal, the controlling links circuit receives the testing result signal, and the output control signal is controlled the closure or openness state of this time slot of having opened.If current time slots does not have capacity, close link so; Before arriving, just opens again next time slot; If current time slots has capacity, then keep initial opening; Result until next time slot capacity judgement changes.Amplifying circuit receives control signal, and time slot is constantly opened with arriving; Control the closure or openness state of this time slot of having opened then by control signal; When having input signal in the current time slots, will the input signal of current time slots be amplified.
The utility model is taked to open by arriving the time slot constantly that arrives earlier, control the operating state of time slot again by the mode that detects this time slot and whether have capacity, this be because: because system detects the certain processing time of process need that whether has capacity in the time slot, if therefore in advance time slot is not opened, then when signal in certain time slot arrives, time slot can't in time be opened owing to need wait capacity judged result by system, so that the control to signal causes time delay, thereby cause signal impairment, even may judge that the scheme of control time slot work loses realistic meaning owing to signal impairment seriously makes by capacity.And the utility model will arrive the time slot unlatching that arrives constantly in advance, not damage in the time of can effectively guaranteeing signal through TU Trunk Unit, thus guarantee enforcement validity of the present utility model.
The synchronizing information of acquisition module generation synchronously and output is meant that the position of finding signal frame structure is also synchronous with it, the method that generates synchronizing information includes but not limited to envelope detection and baseband decoding method, more than two kinds of methods be the common method that generates synchronizing information, do not repeat them here.
Whether above-mentioned detection current time slots exists capacity to realize by number of ways, such as, can judge whether this time slot exists capacity by signal in the current time slots being carried out power detection, if the power of the signal of this time slot reaches predetermined threshold value, then there is capacity in this time slot.The method that another kind of detection capacity has or not can be carried out relevant treatment to signal, when having correlation, just thinks that there is capacity in time slot; If or system has had the discriminating power of descending time slot, and the corresponding relation between descending time slot and the ascending time slot has been informed by network or informed by operator, the capacity situation of ascending time slot just need not judgement and can learn that vice versa so.When using the utility model, can be at different application scenarioss, and the different qualities of detected time slot is selected corresponding implementation.
The utility model capacity analysis module can be carried out capacity check at whole time slots of tdma system, also can be chosen in according to actual needs in the part time slot and carry out, can set in advance predetermined condition this moment and need determine detected time slot, before being opened to the time slot that reaches the moment, judge at first whether this time slot is detected object, if detected object is then opened this time slot earlier, judge whether to exist capacity again.The method that the utility model can select identical or different detection capacity to have or not at the characteristic of ascending time slot and descending time slot is below enumerated two and is used embodiment of the present utility model more clearly to set forth the utility model.
Embodiment one: the TD-SCDMA system is time-multiplexed system, and its frame structure as shown in Figure 4.An Elementary Time Unit of TD-SCDMA system is a radio frames, and each radio frames is divided into two subframes, and the structure of two subframes is identical.Single subframe is made up of conventional time slot and three kinds of special time slots (DWPTS, GP and UPPTS) of 7 identical time spans, and each subframe has two transfer points, and up-downgoing can be asymmetric.As shown in Figure 4, TS0 descending time slot always among the figure, TS1 is ascending time slot always, and TS2, TS3......TS6 can be appointed as ascending time slot or descending time slot dynamically according to actual business requirement.DwPTS is a descending time slot, and UpPTS is an ascending time slot, and the centre by the first time slot transfer point GP separately.
For the TD-SCDMA system, the signal to noise ratio of the signal of its descending input port is better usually, and signal as an embodiment, can select for use the means of power detection to carry out the judgement that capacity has or not usually far above noise.
But,, thereby make that the subscriber signal that is lower than under the low noise can effectively be received because the TD-SCDMA system has adopted multi-user's access way of code division multiple access for ascending time slot.As an embodiment, can be by signal in the time slot and training sequence code midamble sign indicating number are carried out the correlation processing, according to whether there being capacity in the correlation detection time slot.Because TU Trunk Unit obtained synchronously,, can further obtain the corresponding information of cell scrambling, to obtain the basic midamble sign indicating number that this sub-district is selected for use if what carry out that synchronous mode adopts is the method (being known synchronous code) of baseband decoding.Because the midamble sign indicating number that each user adopted in the same time slot is obtained by basic midamble sign indicating number cyclic shift usually, therefore carry out the correlation analysis of basic midamble sign indicating number to received signal, when this time slot of CU, with the correlation peak that produces far above noise, can detect this time slot by this peak value and have capacity, detect capacity signal with output.
The capacity situation of supposing TD signal present frame is descending TS0, TS4 has capacity, up TS1 has capacity, all the other time slots do not have capacity, then, when using method of the present utility model to carry out power consumption control, at first from tdma system, obtain the TD signal that enters TU Trunk Unit according to above-mentioned situation, the TD signal is handled, obtained synchronizing information; And then the arrival of judging each time slot constantly; When descending TS0 arrived, the output control signal placed opening with TS0; Judge that by power detection there is capacity in TS0, then continue to keep the opening of this time slot; When ascending time slot TS1 arrives, at first TS1 is opened, by correlation analysis, judge that TS1 has capacity to signal, then continue to keep the opening of this time slot; When ascending time slot TS2 arrives, after the TS2 unlatching, know that through judging there is not capacity in this time slot, then TS2 to be closed, will produce a pulse in short-term this moment; Control procedure and TS2 time slot to ascending time slot TS3 are similar.To control procedure and the TS0 analogue of descending time slot TS4, close after descending time slot TS5 and TS6 open and also will produce a pulse in short-term.Fig. 5 illustrates the control chart of prior art to signal, and Fig. 6 illustrates the control chart of the utility model to signal, and as can be seen, the utility model has significantly shortened the duration of system's real work, has reduced useless energy consumption.
It is worthy of note, for descending time slot, the method that can adopt the correlation identical with ascending time slot to judge is equally carried out the capacity judgement to time slot, can certainly adopt the mode of other capacity judgements at the characteristic of ascending time slot and descending time slot, does not repeat them here.Present embodiment is so that all time slots are illustrated as detected object, below is example to use the utility model in gsm system, enumerates one with the example of descending time slot as detected object.
Second embodiment: in gsm communication system, though adopted the duplex mode of FDD, its access mode is the TDMA mode, therefore, like the TD-SCDMA system class, gsm system also can be used the utility model time slot is controlled, thereby reaches the purpose that reduces power consumption.
Different with the TD-SCDMA system is that gsm system does not adopt CDMA (Code Division Multiple Access), so therefore signal also can consider to use the mode of power detection that each time slot is carried out capacity check usually far above noise.Below hypothesis is only being that example is set forth with descending time slot as detected object.
Suppose that gsm system has the discriminating power of descending time slot, and the corresponding relation between descending time slot and the ascending time slot has been informed by network, then set predetermined condition according to the corresponding relation of ascending time slot and descending time slot, when determining when reaching time slot constantly and being descending time slot, earlier this time slot is opened, the mode according to power detection detects whether there is capacity in this time slot then, if exist, then continue to keep the opening of this time slot, otherwise, this time slot is closed.Control procedure to descending time slot can realize with reference to the control procedure to descending time slot among the embodiment one, does not repeat them here.
By above embodiment as can be seen, for different tdma systems, the user can at real needs be provided with corresponding predetermined condition with part or all of time slot as detected object, select effective judgement whether to have the mode of capacity at the different characteristics of ascending time slot and descending time slot, all do not influence enforcement of the present utility model.
Above-described the utility model execution mode does not constitute the qualification to the utility model protection range.Any modification of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the claim protection range of the present utility model.
Claims (6)
1, the TU Trunk Unit in a kind of tdma system is characterized in that, comprising:
Coupling circuit receives the input signal of primary path, and this input signal is coupled and changes, and produces coupled signal;
Acquisition module is connected with described coupling circuit synchronously, receives described coupled signal, handles the back and produces synchronizing information;
The capacity analysis module, an input of described capacity analysis module is connected with described synchronous acquisition module, receives described synchronizing information, determines the arrival moment of time slot; Another input links to each other with described coupling circuit, receives described coupled signal, detects the capacity that reaches time slot constantly, produces the testing result signal;
The controlling links circuit, an input of described controlling links circuit is connected with described capacity analysis circuit, and another input is connected with described synchronous acquisition cuicuit, and output is according to described testing result signal and/or described synchronizing information output control signal;
Amplifying circuit is connected with described controlling links circuit, receives described control signal, the described time slot constantly that arrives is opened, and controlled the closure or openness state of the described arrival arrival time slot of having opened constantly; And will the input signal of described time slot be amplified.
2, the TU Trunk Unit in the tdma system according to claim 1, it is characterized in that, also comprise the identification module that is connected with synchronous acquisition module, receive described synchronizing information, obtain the arrival moment of each time slot, differentiate according to predetermined condition arriving the time slot constantly that arrives, and will differentiate described controlling links circuit of result notification and described capacity analysis module.
3, the TU Trunk Unit in the tdma system according to claim 1 and 2 is characterized in that: described TU Trunk Unit is repeater or regenerative repeating unit R RU.
4, the power control circuit in a kind of tdma system is characterized in that, comprising: synchronous acquisition module, controlling links circuit and capacity analysis module;
Described synchronous acquisition module is connected with coupling circuit, receives coupled signal, handles, and produces synchronizing information;
An input of described capacity analysis module is connected with described synchronous acquisition module, receives described synchronizing information, determines the arrival moment of time slot, another input links to each other with described coupling circuit, receive coupled signal, detect the capacity that reaches time slot constantly, produce the testing result signal;
An input of described controlling links circuit is connected with described synchronous acquisition module, another input is connected with described capacity analysis module, according to described synchronizing information and/or described testing result signal output control signal, the described time slot constantly that arrives is opened, and controlled the closure or openness state of the described arrival arrival time slot of having opened constantly.
5, power control circuit in the tdma system according to claim 4, it is characterized in that, also comprise the identification module that is connected with synchronous acquisition module, by described synchronizing information, obtain the arrival moment of each time slot, differentiate according to predetermined condition arriving the time slot constantly that arrives, and will differentiate described controlling links circuit of result notification and described capacity analysis module.
6, according to power control circuit in claim 4 or the 5 described tdma systems, it is characterized in that described power control circuit is positioned at TU Trunk Unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200471067U CN201204586Y (en) | 2008-04-29 | 2008-04-29 | Power consumption control circuit and relay unit for TDMA system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200471067U CN201204586Y (en) | 2008-04-29 | 2008-04-29 | Power consumption control circuit and relay unit for TDMA system |
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| CN201204586Y true CN201204586Y (en) | 2009-03-04 |
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| CNU2008200471067U Expired - Fee Related CN201204586Y (en) | 2008-04-29 | 2008-04-29 | Power consumption control circuit and relay unit for TDMA system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114007255A (en) * | 2021-11-11 | 2022-02-01 | 新华三技术有限公司成都分公司 | Base station energy saving method and device and electronic equipment |
| WO2022140894A1 (en) * | 2020-12-28 | 2022-07-07 | 华为技术有限公司 | Relay communication method and apparatus |
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- 2008-04-29 CN CNU2008200471067U patent/CN201204586Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022140894A1 (en) * | 2020-12-28 | 2022-07-07 | 华为技术有限公司 | Relay communication method and apparatus |
| CN114007255A (en) * | 2021-11-11 | 2022-02-01 | 新华三技术有限公司成都分公司 | Base station energy saving method and device and electronic equipment |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20150429 |
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| EXPY | Termination of patent right or utility model |