CN101668308A - Method, system and device for controlling power - Google Patents
Method, system and device for controlling power Download PDFInfo
- Publication number
- CN101668308A CN101668308A CN200810214976A CN200810214976A CN101668308A CN 101668308 A CN101668308 A CN 101668308A CN 200810214976 A CN200810214976 A CN 200810214976A CN 200810214976 A CN200810214976 A CN 200810214976A CN 101668308 A CN101668308 A CN 101668308A
- Authority
- CN
- China
- Prior art keywords
- terminal
- power control
- bsc
- power
- combinations
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The embodiment of the invention discloses a method for controlling power, which comprises the following steps of: measuring link quality of different multiplex subchannel combinations and acquiring ameasurement report of the link quality of the different multiplex subchannel combination; and sending the measurement report of the link quality to a base station controller BSC for the BSC to performpower control judgment for the different multiplex subchannel combinations. On the other hand, the embodiment of the invention also discloses a device for controlling the power, which comprises a first acquisition module which is used for measuring the link quality of the different multiplex subchannel combinations and acquiring the measurement report of the link quality of the different multiplex subchannel combinations; and a sending module which is used for sending the measurement report of the link quality to the base station controller BSC for the BSC to perform the power control judgment for the different multiplex subchannel combinations. The method and the device of the invention improve the power control flow in an MUROS system.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of Poewr control method, system and device.
Background technology
In recent years, GSM (Global System for Mobile Communications, explosive growth has appearred in global system for mobile communications) number of users and voice service, has brought very big pressure for the operator of operator, particularly densely inhabited district.In addition, because how the reduction of voice service price effectively utilizes existing base station and frequency resource more for more user provides more effective service, become one of problem that operator is concerned about most.
At 3GPP (3rd Generation Partnership Project, third generation partner program) GERAN (GSM EDGE Radio Access Network, global system for mobile communications/enhanced data rates global system for mobile communications evolution technology wireless access network) in the #33 plenary session, Nokia has proposed a kind of imagination that increases the speech capacity: OSC (Orthogonal Sub Channel first, orthogonal sub-channels), promptly on a physical slot by time, insert two MS (Mobile Station simultaneously, travelling carriage), by the training sequence of quadrature it is distinguished.OSC can make available channel quantity double under the situation that does not increase base station number and frequency resource, and develop into multiplexing subchannel technology MUROS (Multi-UserReusing One Slot gradually, multiuser time slot multiplexing), i.e. multiplexing a plurality of users on a time slot.Two users are multiplexed on the same time slot and are called pairing.According to the convention that planisphere is described, two users of pairing are called I road user and Q road user.When on certain time slot with the MUROS mode multiplexing during more than one user, this time slot is in the MUROS pattern.
In traditional GSM hopping scheme, the OSC user of two pairings does not enjoy the gain that frequency hopping is brought to the full.And MUROS frequency hopping diversity scheme is upset MUROS user's channeling relation on time shaft, user in the sub-district is divided into two set, set 1 comprises that all are not in the user of MUROS pattern, and all I road users, gathers 2 and comprises all Q road users.The user of set 1 and set 2 uses same set of MA (Mobile Allocation moves and distributes) and same HSN (Hopping Sequence Number, HSN).The user of set 1 (3GPP TS 45.002) in the conventional mode calculates MAI (Mobile Allocation Index, Mobile Allocation Index), and gather 2 user when calculating MAI, do not re-use MAIO (the Mobile AllocationIndex Offset of fixed allocation, mobile allocation index offset), but MAI of every calculating just changes MAIO, and this scheme is called MAIO Hopping (jumping MAIO).
In MAIO Hopping scheme, because the randomization of pairing can produce multiple different terminal OSC pairing, the power demand of different OSC pairings is all different.On the up direction, because up demodulating algorithm is the serial interference elimination algorithm.This algorithm requires the transmitting power biasing of two terminal rooms of pairing to change within the specific limits.Otherwise the conflict mutually that transmits of two terminals causes user profile correctly to receive.On the down direction, because class QPSK (Quadrature Phase Shift Keying, quarternary phase-shift keying (QPSK)) Tiao Zhi I road and Q road terminal must send by power maximum in the two-way, when the other-end in each terminal and the frequency hopping group matches, the transmitting power of BTS (Base Transceiver Station, base transceiver station) is all inequality.Under above-mentioned scene, terminal is measured the mean value of gained to the measurement result of down link to various OSC composite link quality for terminal.
The inventor is in realizing process of the present invention, and there are the following problems at least to find prior art:
After introducing the frequency hopping diversity scheme, the power control flow in the MUROS system can't normally be carried out.On the up direction, under MAIO hopping scene, all there are different OSC pairings in each terminal, because the transmitting power of pairing terminal has nothing in common with each other, if do not adjust transmitted power at different pairing terminals, can cause the terminal room power bias of portion paired to exceed SIC (Successive Interference Cancellation, multiuser detection) claimed range, cause the demodulation failure.On the down direction, according to current method of measurement to link-quality, BSC (Base Station Controller, base station controller) only can be according to terminal at SACCH (Slow Associated Control Channel, slow associated control channel) mean value of measuring in the cycle, carry out power control judgement, cause the bigger deviation of existence between the actual required transmitting power of down transmitting power and terminal.This deviation because the continuous variation of the angle between I road and the Q road is particularly serious, even can cause call drop under alpha modulation scene.
Summary of the invention
The embodiment of the invention provides a kind of Poewr control method, system and device, is used for improving the power control flow of MUROS system.
The embodiment of the invention proposes a kind of Poewr control method on the one hand, comprising:
At different multiplex subchannel combinations measure link quality, obtain links quality measurement reports at described different multiplex subchannel combinations;
Send described links quality measurement reports to base station controller BSC, carry out power control judgement at described different multiplex subchannel combinations for described BSC.
On the other hand, the embodiment of the invention also proposes a kind of output control device, comprising:
First acquisition module is used at different multiplex subchannel combinations measure link quality, obtains the links quality measurement reports at described different multiplex subchannel combinations;
First sending module is used to send described links quality measurement reports that described first acquisition module obtains to BSC, carries out power control judgement for described BSC at described different multiplex subchannel combinations.
Another aspect, the embodiment of the invention also propose a kind of power control system, are used for the control of up direction power, comprising:
BSC, be used to receive the links quality measurement reports that BTS sends at different multiplex subchannel combinations, according to described links quality measurement reports, carry out power control judgement at described different multiplex subchannel combinations, and, indicate described BTS to the terminal transmission power control commands according to the result that described power control is adjudicated;
BTS is used at described different multiplex subchannel combinations measure link quality, sends described links quality measurement reports to described BSC, and sends described power control command according to the indication of described BSC to described terminal;
Terminal is used for the described power control command according to described BTS transmission, adjusts the power that transmits.
On the one hand, the embodiment of the invention also proposes a kind of power control system again, is used for the control of down direction power, comprising:
Terminal is used for sending described links quality measurement reports to BSC at different multiplex subchannel combinations measure link quality;
BSC is used to receive that described terminal sends at the described links quality measurement reports of described different multiplex subchannel combinations, according to described links quality measurement reports, carries out power control judgement at described different multiplex subchannel combinations;
BTS is used for the power control court verdict according to described BTS, adjusts the power that transmits.
The technical scheme of the embodiment of the invention has the following advantages, because adopted the link quality measurements method at different multiplex subchannel combinations, and carries out power control at different multiplex subchannel combinations and adjudicates.On up direction, make terminal pins adjust transmitting power to different multiplex subchannel combinations, the power bias of pairing terminal room is remained in the SIC claimed range; On down direction, avoided existing between base station actual downstream transmitting power and terminal power demand the problem of bigger deviation, improved the power control flow in the MUROS system.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a Poewr control method flow chart in the embodiment of the invention;
Fig. 2 is a kind of specific implementation flow chart of power control in the embodiment of the invention;
Fig. 3 is the another kind of specific implementation flow chart of power control in the embodiment of the invention;
Fig. 4 is another specific implementation flow chart of power control in the embodiment of the invention;
Fig. 5 is an output control device structure chart in the embodiment of the invention;
Fig. 6 is a kind of concrete structure figure of output control device in the embodiment of the invention;
Fig. 7 is a kind of power control system structure chart in the embodiment of the invention;
Fig. 8 is an another kind of power control system structure chart in the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
As shown in Figure 1, be Poewr control method flow chart in the embodiment of the invention, may further comprise the steps:
On the up direction, because the transmitting power of pairing terminal has nothing in common with each other in the different multiplex subchannel combinations, BTS needs to carry out link quality measurements respectively, and obtain the links quality measurement reports at different multiplex subchannel combinations at different multiplex subchannel combinations.
On the down direction, because the I/Q two-way of class QPSK modulation must send by power maximum in the two-way, when the other-end in each terminal and its frequency hopping group matched, the transmitting power of BTS was all inequality.At the downlink quality sudden change problem that the frequency hopping diversity scheme causes, terminal is carried out link quality measurements respectively at each multiplex subchannel combinations.
On the up direction, BTS reports to BSC with this links quality measurement reports after obtaining links quality measurement reports at different multiplex subchannel combinations.BSC controls one group of base station, and its task is the management wireless network.After BSC receives measurement result at each multiplex subchannel combinations link-quality, determine the transmitting power that two terminals should adopt in the cycle at next SACCH in each multiplex subchannel combinations respectively, and indication BTS is to the terminal transmission power control commands.BTS will add the different time-gap in 26 multi-frames in order at the power control command of different multiplex subchannel combinations respectively, be issued to each terminal.After terminal receives the power control command that BTS issues, the power that transmits according to this power control command adjustment.
On the down direction, terminal reports to BSC with this links quality measurement reports after obtaining links quality measurement reports at different multiplex subchannel combinations.BSC adjudicates the transmitting power that BTS should send in each multiplex subchannel combinations respectively after receiving measurement result at each multiplex subchannel combinations link-quality.BTS transmits according to the power court verdict of BSC, adjusts transmitting power at different multiplex subchannel combinations.The technical scheme of the embodiment of the invention has the following advantages, because adopted the link quality measurements method at different multiplex subchannel combinations, and carries out power control at different multiplex subchannel combinations and adjudicates.On up direction, make terminal pins adjust transmitting power to different multiplex subchannel combinations, the power bias of pairing terminal room is remained in the SIC claimed range; On down direction, avoided existing between base station actual downstream transmitting power and terminal power demand the problem of bigger deviation.
In the embodiment of the invention, orthogonal sub-channels belongs to a kind of in the multiplexing subchannel, and the embodiment of the invention only is that example describes with the orthogonal sub-channels, and the technical scheme in the embodiment of the invention is equally applicable to other the multiplexing subchannels except that orthogonal sub-channels.
As shown in Figure 2, be a kind of specific implementation flow chart of power control in the embodiment of the invention, be applicable to the power control on the up direction, may further comprise the steps:
Step 201, BTS carries out link quality measurements respectively at different OSC combinations.
Step 202, BTS reports to BSC respectively with the measurement result of each OSC combination.
Because the demodulating algorithm on the up direction is the serial interference elimination algorithm, this algorithm requires the transmitting power biasing of two terminal rooms of pairing in the OSC combination to change within the specific limits.Otherwise the conflict mutually that transmits of two terminals causes user profile correctly to receive.Because the transmitting power of pairing terminal has nothing in common with each other in the different OSC combination, BTS needs to carry out link quality measurements respectively, and the measurement result of each OSC combination is reported to BSC respectively at different OSC combinations.
Step 203, BSC is according to the measurement report of each OSC combination, at each OSC combination carrying out power control judgement.
After BSC receives measurement result at each OSC composite link quality, determine the transmitting power that two terminals should adopt in the cycle at next SACCH in each OSC combination respectively.
Step 204, BTS obtains the power control court verdict of BSC.
The transmitting power that above-mentioned power control court verdict should adopt in the cycle at next SACCH for the terminal in each OSC combination.
Step 205, BTS is to the terminal transmission power control commands.
When terminal issues power control command, BSC will be provided with a cover power contorl parameters at each OSC combination, satisfies the demodulation demand of base station all the time with the transmitting power biasing that guarantees the pairing terminal room.BTS is to the terminal transmission power control commands in the BSC indication, BTS will add the different time-gap in 26 multi-frames in order at the power control command of different OSC combinations respectively, be issued to each terminal, the power that terminal is transmitted according to described power control command adjustment.
Table 1 and table 2 are represented 26 multi-frame structures of full rate TCH in the gsm system (Traffic Channel, Traffic Channel) and half rate TCH respectively.In existing power control flow, per 4 26 multi-frames are formed a SACCH power control period.In every SACCH cycle, BSC can issue a uplink power control order.This order issues by four SACCH frames of this SACCH in the cycle, as: the SACCH frame in the table 1, perhaps the SACCH1/SACCH2 frame in the table 2.Wherein, the SACCH1/SACCH2 frame carries the power control command of two half rate TCH subchannel T1/T2 respectively.In the existing protocol standard, no matter be full rate TCH or half rate TCH, the uplink power control order all is that the frame head by the SACCH frame sends.
Table 1SACCH frame structure
| ??T | ??T | ??T | ??T | ??T | ??T | ??T | ??T | ??T | ??T | ??T | ??T | ??SACCH |
| ??T | ??T | ??T | ??T | ??T | ??T | ??T | ??T | ??T | ??T | ??T | ??T | ??Idle |
Table 2SACCH1/SACCH2 frame structure
| ??T1 | ??T1 | ??T1 | ??T1 | ??T1 | ??T1 | ??T1 | ??T1 | ??T1 | ??T1 | ??T1 | ??T1 | ??SACCH1 |
| ??T2 | ??T2 | ??T2 | ??T2 | ??T2 | ??T2 | ??T2 | ??T2 | ??T2 | ??T2 | ??T2 | ??T2 | ??SACCH2 |
In the embodiment of the invention, because BSC will all send a plurality of power control commands for each terminal, the load mode of existing uplink power control order can't provide enough spaces, for each terminal is transmitted complete power control command combination.Therefore, the embodiment of the invention is improved the uplink power control flow process.
Existing SACCH frame, as the SACCH frame in the table 1, the perhaps SACCH1/SACCH2 frame in the table 2, the power control command when only being used to send terminal and being in non-OSC pairing mode.In this scene, no other-end and current power control terminal are paired into the MUROS channel, and be comparatively similar with existing power control scene.When terminal was in the OSC pairing mode, for the half rate TCH terminal of full rate TCH terminal and use T1 channel, BTS will be packed in the frame head of speech frame 0-11 in order at the power control command of different OSC combinations; For the half rate TCH terminal of using the T2 channel, BTS will be packed in the frame head of speech frame 13-24 in order at the power control command of different OSC combinations.In embodiments of the present invention, for the terminal that does not have non-OSC pairing mode, original SACCH frame also can be used to transmit the power control command of its OSC combinations of pairs.This scheme is supported 13 kinds of different OSC combinations of pairs at most, can be supported in simultaneously and carry out the frequency modulation diversity operation between 13 carrier frequency.
Step 206, the terminal power that adjustment transmits according to power control command.
Because BSC indication BTS makes up at different OSC, to the terminal transmission power control commands.Terminal is penetrated signal according to power control command transmitting, adjusts transmitting power at different OSC combinations.At this moment, terminal can be the MAIO set of its configuration according to network, determines different OSC combinations of pairs.Each MAIO in the MAIO set all corresponding different OSC combinations.
The technical scheme of the embodiment of the invention has the following advantages, because adopted the link quality measurements method at different OSC combinations by BTS, and at different OSC combination carrying out power control judgements, make terminal pins adjust transmitting power, the power bias of pairing terminal room is remained in the SIC claimed range different OSC combinations.
In the embodiment of the invention, orthogonal sub-channels belongs to a kind of in the multiplexing subchannel, and the embodiment of the invention only is that example describes with the orthogonal sub-channels, and the technical scheme in the embodiment of the invention is equally applicable to other the multiplexing subchannels except that orthogonal sub-channels.
As shown in Figure 3, be the another kind of specific implementation flow chart of power control in the embodiment of the invention, be applicable to the power control on the down direction, may further comprise the steps:
BSC is sending downlink data packet to terminal, comprise SACCH, FACCH (Fast AssociatedControl Channel, when signaling Fast Associated Control Channel) and the speech frame on the TCH, in the packet header of packet, add OSC pairing sign, make the different OSC combinations of pairs of terminal recognition, guarantee the differentiation of terminal different OSC combinations of pairs.
In the embodiment of the invention, terminal can be the MAIO set of its configuration according to network also, determines different OSC combinations of pairs.Each MAIO in the MAIO set all corresponding different OSC combinations.
On the down direction, because the I/Q two-way of class QPSK modulation must send by power maximum in the two-way, when the other-end in each terminal and its frequency hopping group matched, the transmitting power of BTS was all inequality.At the downlink quality sudden change problem that the frequency hopping diversity scheme causes, terminal is combined into the line link mass measurement at each OSC respectively, and reports to BSC respectively according to the OSC pairing sign that receives.
In the embodiment of the invention, because terminal will send corresponding measurement result to BSC at each OSC combination, the mode that reports of existing measurement report can't provide enough spaces, for complete measurement report is transmitted in each OSC combination.Therefore, the embodiment of the invention is improved the measurement report report flow.SACCH frame of the prior art, as the SACCH frame in the table 1, the perhaps SACCH1/SACCH2 frame in the table 2, the quality measurement reports when only being used to send terminal and being in non-OSC pairing mode.In this scene, no other-end and current power control terminal are paired into the power control scene of MUROS channel, and be comparatively similar with existing power control scene.In the embodiment of the invention, when terminal was in the OSC pairing mode, for the half rate TCH terminal of full rate TCH terminal and use T1 channel, each terminal will be packed in the frame head of speech frame 0-11 in order at the measurement report of different OSC combinations; For the half rate TCH terminal of using the T2 channel, each terminal will be packed in the frame head of speech frame 13-24 in order at the measurement report of different OSC combinations.In the embodiment of the invention, for the terminal that does not have non-OSC pairing mode, original SACCH frame also can be used to transmit the measurement report of its OSC combinations of pairs.This scheme is supported 13 kinds of different OSC combinations of pairs at most, can be supported in simultaneously and carry out the frequency hopping diversity operation between 13 carrier frequency.
After BSC receives measurement result at each OSC composite link quality, adjudicate the transmitting power that BTS should send in each OSC combination respectively.
BTS transmits according to the power court verdict of BSC, adjusts transmitting power at different OSC combinations.
The technical scheme of the embodiment of the invention has the following advantages, because adopted by the link quality measurements method of terminal pins to different OSC combinations, and, avoided existing between base station actual downstream transmitting power and terminal power demand the problem of bigger deviation at different OSC combination carrying out power control judgements.
In the embodiment of the invention, orthogonal sub-channels belongs to a kind of in the multiplexing subchannel, and the embodiment of the invention only is that example describes with the orthogonal sub-channels, and the technical scheme in the embodiment of the invention is equally applicable to other the multiplexing subchannels except that orthogonal sub-channels.
As shown in Figure 4, be another specific implementation flow chart of power control in the embodiment of the invention, be applicable to the power control on the down direction, may further comprise the steps:
Step 401, BSC is to the terminal distribution training sequence code.
BSC for the terminal that participates in frequency hopping diversity distribute in certain sequence training sequence code (TrainingSequence Code, hereinafter to be referred as: TSC), all inequality in whole frequency hopping diversity group with the TSC that the terminal that guarantees in the frequency hopping diversity group is got.
Step 402, terminal are determined the OSC combination at self place according to TSC.
When the demodulation downstream signal, terminal is attempted the TSC of another road terminal of demodulation successively by predefined TSC allocation order.Because the uniqueness of TSC in frequency modulation diversity group, terminal can be determined the OSC combination at self place by this TSC.
In the embodiment of the invention, terminal can be the MAIO set of its configuration according to network also, determines different OSC combinations of pairs.Each MAIO in the MAIO set all corresponding different OSC combinations.
Step 403, terminal pins is carried out link quality measurements respectively to different OSC combinations.
Step 404, terminal reports to BSC respectively with the measurement result of each OSC combination.
On the down direction, because the I/Q two-way of class QPSK modulation must send by power maximum in the two-way, when the other-end in each terminal and its frequency hopping group matched, the transmitting power of BTS was all inequality.At the downlink quality sudden change problem that the frequency hopping diversity scheme causes, terminal is combined into the line link mass measurement at each OSC respectively, and reports to BSC respectively.
In the embodiment of the invention, because terminal will send corresponding measurement result to BSC at each OSC combination, the mode that reports of existing measurement report can't provide enough spaces, for complete measurement report is transmitted in each OSC combination.Therefore, the embodiment of the invention is improved the measurement report report flow.SACCH frame of the prior art, as the SACCH frame in the table 1, the perhaps SACCH1/SACCH2 frame in the table 2, the quality measurement reports when only being used to send terminal and being in non-OSC pairing mode.In this scene, no other-end and current power control terminal are paired into the power control scene of MUROS channel, and be comparatively similar with existing power control scene.In the embodiment of the invention, when terminal was in the OSC pairing mode, for the half rate TCH terminal of full rate TCH terminal and use T1 channel, each terminal will be packed in the frame head of speech frame 0-11 in order at the measurement report of different OSC combinations; For the half rate TCH terminal of using the T2 channel, each terminal will be packed in the frame head of speech frame 13-24 in order at the measurement report of different OSC combinations.In the embodiment of the invention, for the terminal that does not have non-OSC pairing mode, original SACCH frame also can be used to transmit the measurement report of its OSC combinations of pairs.This scheme is supported 13 kinds of different OSC combinations of pairs at most, can be supported in simultaneously and carry out the frequency hopping diversity operation between 13 carrier frequency.
Step 405, BSC is according to the measurement report of each OSC combination, at each OSC combination carrying out power control judgement.
After BSC receives measurement result at each OSC composite link quality, adjudicate the transmitting power that BTS should send in each OSC combination respectively.
Step 406, the power that BTS transmits according to the power court verdict adjustment of BSC.
BTS transmits according to the power court verdict of BSC, adjusts transmitting power at different OSC combinations.
The technical scheme of the embodiment of the invention has the following advantages, because adopted by the link quality measurements method of terminal pins to different OSC combinations, and, avoided existing between base station actual downstream transmitting power and terminal power demand the problem of bigger deviation at different OSC combination carrying out power control judgements.
As shown in Figure 5, be output control device structure chart in the embodiment of the invention, comprise:
Above-mentioned output control device can be BTS or terminal.
On the up direction, because the transmitting power of pairing terminal has nothing in common with each other in the different multiplex subchannel combinations, BTS needs to carry out link quality measurements respectively, and obtain the links quality measurement reports at different multiplex subchannel combinations at different multiplex subchannel combinations.
On the down direction, because the I/Q two-way of class QPSK modulation must send by power maximum in the two-way, when the other-end in each terminal and its frequency hopping group matched, the transmitting power of BTS was all inequality.At the downlink quality sudden change problem that the frequency hopping diversity scheme causes, terminal is carried out link quality measurements respectively at each multiplex subchannel combinations.
First sending module 520 is used to send links quality measurement reports that first acquisition module 510 obtains to BSC, carries out power control judgement for BSC at different multiplex subchannel combinations.
On the up direction, BTS reports to BSC with this links quality measurement reports after obtaining links quality measurement reports at different multiplex subchannel combinations.BSC controls one group of base station, and its task is the management wireless network.After BSC receives measurement result at each multiplex subchannel combinations link-quality, determine the transmitting power that two terminals should adopt in the cycle at next SACCH in each multiplex subchannel combinations respectively, and indication BTS is to the terminal transmission power control commands.BTS will add the different time-gap in 26 multi-frames in order at the power control command of different multiplex subchannel combinations respectively, be issued to each terminal.After terminal receives the power control command that BTS issues, the power that transmits according to this power control command adjustment.
On the down direction, terminal reports to BSC with this links quality measurement reports after obtaining links quality measurement reports at different multiplex subchannel combinations.BSC adjudicates the transmitting power that BTS should send in each multiplex subchannel combinations respectively after receiving measurement result at each multiplex subchannel combinations link-quality.BTS transmits according to the power court verdict of BSC, adjusts transmitting power at different multiplex subchannel combinations.
When above-mentioned output control device was BTS, as shown in Figure 6, this output control device was applicable to the power control on the up direction, specifically comprises:
First acquisition module 610 is used for obtaining the links quality measurement reports at different multiplex subchannel combinations at different multiplex subchannel combinations measure link quality.
On the up direction, because the transmitting power of pairing terminal has nothing in common with each other in the different multiplex subchannel combinations, BTS needs to carry out link quality measurements respectively, and obtain the links quality measurement reports at different multiplex subchannel combinations at different multiplex subchannel combinations.
First sending module 620 is used to send links quality measurement reports that first acquisition module 610 obtains to BSC, carries out power control judgement for BSC at different multiplex subchannel combinations.
On the up direction, BTS reports to BSC with this links quality measurement reports after obtaining links quality measurement reports at different multiplex subchannel combinations.BSC controls one group of base station, and its task is the management wireless network.After BSC receives measurement result at each multiplex subchannel combinations link-quality, determine the transmitting power that two terminals should adopt in the cycle at next SACCH in each multiplex subchannel combinations respectively, and indication BTS is to the terminal transmission power control commands.BTS will add the different time-gap in 26 multi-frames in order at the power control command of different multiplex subchannel combinations respectively, be issued to each terminal.
Second acquisition module 630 is used to obtain the power control court verdict of BSC.
On the up direction, the transmitting power that above-mentioned power control court verdict should adopt in the cycle at next SACCH for the terminal in each multiplex subchannel combinations.
Second sending module 640, the power that is used for obtaining according to second acquisition module 630 is controlled court verdict, to the terminal transmission power control commands, makes the terminal power that adjustment transmits according to power control command.
On the up direction, after BSC carried out power control judgement at different multiplex subchannel combinations, BTS was to the terminal transmission power control commands in indication.After terminal receives the power control command that BTS issues, the power that transmits according to this power control command adjustment.
As shown in Figure 7, be a kind of power control system structure chart in the embodiment of the invention, be used for the control of up direction power, comprising:
After BSC 701 receives measurement result at each multiplex subchannel combinations link-quality, determine the transmitting power that two terminals should adopt in the cycle at next SACCH in each multiplex subchannel combinations respectively, and indication BTS 702 is to terminal 703 transmission power control commands.BTS 702 will add the different time-gap in 26 multi-frames in order at the power control command of different multiplex subchannel combinations respectively, be issued to terminal 703.
Because the transmitting power of pairing terminal has nothing in common with each other in the different multiplex subchannel combinations, BTS 702 needs to carry out link quality measurements respectively, and the measurement result of each multiplex subchannel combinations is reported to BSC 701 respectively at different multiplex subchannel combinations.
The technical scheme of the embodiment of the invention has the following advantages, because adopted the link quality measurements method at different multiplex subchannel combinations by BTS, and carry out power control at different multiplex subchannel combinations and adjudicate, make terminal pins adjust transmitting power, the power bias of pairing terminal room is remained in the SIC claimed range different multiplex subchannel combinations.
As shown in Figure 8, be another kind of power control system structure chart in the embodiment of the invention, be used for the control of down direction power, comprising:
Because the I/Q two-way of class QPSK modulation must send by power maximum in the two-way, when the other-end in each terminal and its frequency hopping group matched, the transmitting power of BTS was all inequality.At the downlink quality sudden change problem that the frequency hopping diversity scheme causes, terminal 801 is carried out link quality measurements respectively at each multiplex subchannel combinations, and reports to BSC 802 respectively.
The technical scheme of the embodiment of the invention has the following advantages, because adopted by the link quality measurements method of terminal pins to different multiplex subchannel combinations, and carry out power control at different multiplex subchannel combinations and adjudicate, avoided existing between base station actual downstream transmitting power and terminal power demand the problem of bigger deviation.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a station terminal equipment (can be mobile phone, personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
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 looked protection scope of the present invention.
Claims (17)
1, a kind of Poewr control method is characterized in that, comprising:
At different multiplex subchannel combinations measure link quality, obtain links quality measurement reports at described different multiplex subchannel combinations;
Send described links quality measurement reports to base station controller BSC, carry out power control judgement at described different multiplex subchannel combinations for described BSC.
2, Poewr control method according to claim 1 is characterized in that when power was controlled to be upload control, described transmission links quality measurement reports also comprised after BSC:
Obtain the power control court verdict of described BSC, the transmitting power that described power control court verdict should adopt in next slow associated control channel SACCH cycle for the terminal in each multiplex subchannel combinations;
According to the result of described power control judgement to described terminal transmission power control commands, the power that described terminal is transmitted according to described power control command adjustment.
3, as Poewr control method as described in the claim 2, it is characterized in that the described terminal power that adjustment transmits according to power control command specifically comprises:
Described terminal is determined different multiplexing subchannel combinations of pairs according to the mobile allocation index offset MAIO set of network configuration, the corresponding different multiplex subchannel combinations of each MAIO in the described MAIO set;
Described terminal is according to power control command, the power that transmits at different multiplexing subchannel combinations of pairs adjustment.
4, as Poewr control method as described in the claim 2, it is characterized in that, described to the terminal transmission power control commands, be specially:
To adopt the SACCH frame power control command mode of issuing to send at the power control command of described different multiplex subchannel combinations at single user.
5, as Poewr control method as described in the claim 2, it is characterized in that, described to the terminal transmission power control commands, specifically comprise:
Will be at the power control command of described different multiplex subchannel combinations, add the different time-gap in 26 multi-frames in order respectively and send.
6, as Poewr control method as described in the claim 5, it is characterized in that, described will be at the power control command of described different multiplex subchannel combinations, add the different time-gap in 26 multi-frames in order respectively and send, specifically comprise:
For traffic channel full rate TCH terminal and the half rate TCH terminal of using the T1 channel, described power control command at different multiplex subchannel combinations is packed in order in the frame head of speech frame 0 to 11 frame and sends;
For the half rate TCH terminal of using the T2 channel, described power control command at different multiplex subchannel combinations is packed in order in the frame head of speech frame 13 to 24 frames and sends.
7, Poewr control method according to claim 1 is characterized in that, and is described at before the different multiplex subchannel combinations measure link quality when power is controlled to be the control of down direction power, also comprises:
Discern described different multiplex subchannel combinations.
8, as Poewr control method as described in the claim 7, it is characterized in that the multiplex subchannel combinations that described identification is different specifically comprises:
Receive the multiplexing subchannel pairing sign that described BSC sends,, discern described different multiplex subchannel combinations according to described multiplexing subchannel pairing sign; Or
Receive the training sequence code TSC that described BSC distributes, discern described different multiplex subchannel combinations according to described TSC; Or
According to the MAIO set of network configuration, discern described different multiplex subchannel combinations, the corresponding described different multiplex subchannel combinations of each MAIO in the described MAIO set.
9, as Poewr control method as described in the claim 8, it is characterized in that, also comprise:
Receive the downlink data packet that described BSC sends, comprise described multiplexing subchannel pairing sign in the packet header of described downlink data packet, described downlink data packet comprises signaling, the signaling on the Fast Associated Control Channel FACCH and the speech frame on the TCH on the SACCH.
10, as Poewr control method as described in the claim 8, it is characterized in that, described according to the different multiplex subchannel combinations of TSC identification, specifically comprise:
During the demodulation downstream signal, attempt the TSC of another road terminal of demodulation successively, to determine the multiplex subchannel combinations at self place by predefined TSC allocation order.
11, as Poewr control method as described in the claim 7, it is characterized in that described transmission links quality measurement reports specifically comprises to BSC:
Described links quality measurement reports is added the different time-gap in 26 multi-frames respectively and sends to described BSC; Or
Employing reports mode that described links quality measurement reports is sent to described BSC at single user's SACCH frame measurement report.
12, as Poewr control method as described in the claim 11, it is characterized in that, links quality measurement reports added the different time-gap in 26 multi-frames respectively and sends to BSC, specifically comprise:
For full rate TCH terminal and the half rate TCH terminal of using the T1 channel, described terminal will be packed in the frame head of speech frame 0 to 11 frame at the measurement report of different multiplex subchannel combinations in order and send to described BSC;
For the half rate TCH terminal of using the T2 channel, described terminal will be packed in the frame head of speech frame 13 to 24 frames at the measurement report of different multiplex subchannel combinations in order and send to described BSC.
13, a kind of power control system is used for the control of up direction power, it is characterized in that, comprising:
BSC, be used to receive the links quality measurement reports that BTS sends at different multiplex subchannel combinations, according to described links quality measurement reports, carry out power control judgement at described different multiplex subchannel combinations, and, indicate described BTS to the terminal transmission power control commands according to the result that described power control is adjudicated;
BTS is used at described different multiplex subchannel combinations measure link quality, sends described links quality measurement reports to described BSC, and sends described power control command according to the indication of described BSC to described terminal;
Terminal is used for the described power control command according to described BTS transmission, adjusts the power that transmits.
14, a kind of power control system is used for the control of down direction power, it is characterized in that, comprising:
Terminal is used for sending described links quality measurement reports to BSC at different multiplex subchannel combinations measure link quality;
BSC is used to receive that described terminal sends at the described links quality measurement reports of described different multiplex subchannel combinations, according to described links quality measurement reports, carries out power control judgement at described different multiplex subchannel combinations;
BTS is used for the power control court verdict according to described BTS, adjusts the power that transmits.
15, a kind of output control device is characterized in that, comprising:
First acquisition module is used at different multiplex subchannel combinations measure link quality, obtains the links quality measurement reports at described different multiplex subchannel combinations;
First sending module is used to send the described links quality measurement reports of described first acquisition module to BSC, carries out power control judgement for described BSC at described different multiplex subchannel combinations.
16, as output control device as described in the claim 15, it is characterized in that, when power is controlled to be the control of up direction power, also comprise:
Second acquisition module is used to obtain the power control court verdict of described BSC, the transmitting power that described power control court verdict should adopt in the cycle at next SACCH for the terminal in each multiplex subchannel combinations.
Second sending module is used for controlling court verdict according to the described power that described second acquisition module obtains, to described terminal transmission power control commands, and the power that described terminal is transmitted according to described power control command adjustment.
17, as output control device as described in the claim 15, it is characterized in that described output control device is BTS or terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810214976A CN101668308A (en) | 2008-09-03 | 2008-09-03 | Method, system and device for controlling power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810214976A CN101668308A (en) | 2008-09-03 | 2008-09-03 | Method, system and device for controlling power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101668308A true CN101668308A (en) | 2010-03-10 |
Family
ID=41804686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810214976A Pending CN101668308A (en) | 2008-09-03 | 2008-09-03 | Method, system and device for controlling power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101668308A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377463A (en) * | 2010-08-09 | 2012-03-14 | 中兴通讯股份有限公司 | Pairing method in multiuser multiple input and multiple output system and apparatus thereof, data transmission method and apparatus thereof |
| CN107708155A (en) * | 2017-10-25 | 2018-02-16 | 锐捷网络股份有限公司 | A kind of ascending power control method and base station |
-
2008
- 2008-09-03 CN CN200810214976A patent/CN101668308A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377463A (en) * | 2010-08-09 | 2012-03-14 | 中兴通讯股份有限公司 | Pairing method in multiuser multiple input and multiple output system and apparatus thereof, data transmission method and apparatus thereof |
| CN102377463B (en) * | 2010-08-09 | 2014-12-31 | 中兴通讯股份有限公司 | Pairing method in multiuser multiple input and multiple output system and apparatus thereof, data transmission method and apparatus thereof |
| CN107708155A (en) * | 2017-10-25 | 2018-02-16 | 锐捷网络股份有限公司 | A kind of ascending power control method and base station |
| CN107708155B (en) * | 2017-10-25 | 2021-09-14 | 锐捷网络股份有限公司 | Uplink power control method and base station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108900224B (en) | Communication system, network node in communication system, user equipment and method | |
| JP4584835B2 (en) | Power control method and apparatus in wireless communication system | |
| CN100388848C (en) | Base station apparatus, mobile station apparatus, radio communiation system, and radio communication method | |
| CN103828274A (en) | Apparatus and method for uplink transmission in wireless communication systems | |
| US20080037409A1 (en) | Wireless transmitting station and wireless receiving station | |
| US20070281693A1 (en) | Method for transmitting channel quality indicators in an orthogonal frequency division multiplexing system, a base station, a user terminal and a network therefor | |
| CA2536261A1 (en) | Multiple access wireless communications system using a multisector configuration | |
| WO2007121408A1 (en) | Methods and apparatus for tracking wireless terminal power information | |
| CN101801078A (en) | Controlled superposition coding in multi-user comm | |
| CN104170492A (en) | Method and device for distributing resources | |
| CN110870358B (en) | Signal transmitting/receiving method and apparatus in wireless LAN system | |
| EP2260587B1 (en) | Timeslot hopping for transmitting call data | |
| CN101742539A (en) | Wireless resource allocation method and system | |
| CN101959305A (en) | Method for trying to pair users | |
| KR101550163B1 (en) | Method and apparatus for a spectrally compliant cellular communication system | |
| CN101926108B (en) | Report mechanism in radio system reusing one time-slot | |
| CN102077656B (en) | A power control method and apparatus | |
| CN101668308A (en) | Method, system and device for controlling power | |
| CN101882946A (en) | Frequency-hopping method in GERAN (GSM EDGE Radio Access Network)/VAMOS (Voice services over Adaptive Multi-user channelson One Slot) system | |
| Kim et al. | Radio resource management for a two-hop OFDMA relay system in downlink | |
| CN101577959B (en) | Method and device for multiplexing multi-user time slots | |
| CN102695247A (en) | Power control method and power control device | |
| CN104159318A (en) | Data transmission method and device | |
| CN101990286B (en) | Status judgment method of transport format combination in dual-carrier high speed uplink packet access (HSUPA) system and device thereof | |
| CN103905174A (en) | Method, device and system for enhancing system capacity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100310 |