CN103391607B - The Poewr control method of measuring reference signals, device and system - Google Patents

The Poewr control method of measuring reference signals, device and system Download PDF

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CN103391607B
CN103391607B CN201210146279.5A CN201210146279A CN103391607B CN 103391607 B CN103391607 B CN 103391607B CN 201210146279 A CN201210146279 A CN 201210146279A CN 103391607 B CN103391607 B CN 103391607B
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power
power adjustment
adjusted value
subscriber equipment
srs
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CN103391607A (en
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李强
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201210146279.5A priority Critical patent/CN103391607B/en
Priority to PCT/CN2013/070265 priority patent/WO2013166864A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels

Abstract

The embodiment of the invention discloses the Poewr control method of a kind of SRS, device and system.The embodiment of the present invention adopts the power adjustment message comprising at least one power adjustment of subscriber equipment receiving network equipment and send, one group of power contorl parameters is selected in preset multiple power control parameter, then based on the indication information from network equipment, the current power adjusted value corresponding with one group of power contorl parameters of described selection is obtained at least one power adjustment described, and based on current power adjusted value determination actual power adjusted value, finally according to the transmitted power of one group of power contorl parameters adjustment SRS of actual power adjusted value and selection, the program can improve greatly at multipoint service technical network, the power control accuracy of the SRS especially under heterogeneous network and flexibility.

Description

The Poewr control method of measuring reference signals, device and system
Technical field
The present invention relates to communication technical field, be specifically related to the Poewr control method of measuring reference signals (SRS, SoundingReferenceSignal), device and system.
Background technology
At Long Term Evolution (LTE, LongTermEvolution) in system, uplink measurement reference signal (SRS, SoundingReferenceSignal) be by subscriber equipment (UE, UserEquipment) evolution base station (eNB is sent to, evolvedNodeB, be called for short base station) a kind of signal, it is mainly used in the measurement of up channel, its measurement result can be used for carrying out dispatching, modulating-coding is selected and adjustment launch time etc., in addition, under certain conditions, SRS also can be used for carrying out the measurement of down channel.
Under traditional network, a subscriber equipment only has a serving BS usually, namely no matter be up or descending, subscriber equipment all just correspond to same serving BS, but, if have employed multipoint service technology (CoMP, CooperativeMulti-PointTransmission), especially under heterogeneous network, subscriber equipment likely can be corresponding multiple serving BS, such as, except serving macro base station, the also micro-base station of presence service, micro-base station comprises femto base station (pico), the low power nodes such as femto and Home eNodeB, so just may there is the situation that up serving BS is different with descending serving BS.And in the prior art, the transmitted power of the SRS for up channel measurement that subscriber equipment sends, all calculate based on same serving BS with the transmitted power of SRS measured for down channel that subscriber equipment sends, namely uplink and downlink all adopt same control flow, therefore, at multipoint service technical network, especially under heterogeneous network, the power control accuracy of SRS and flexibility are not high.
Summary of the invention
The embodiment of the present invention provides the Poewr control method of a kind of SRS, device and system, can improve at multipoint service technical network, the power control accuracy of the SRS especially under heterogeneous network and flexibility.
A Poewr control method of SRS, comprising:
Receive the power adjustment message that network equipment sends, described power adjustment message comprises at least one power adjustment of subscriber equipment;
One group of power contorl parameters is selected in preset multiple power control parameter;
Based on the indication information from network equipment, at least one power adjustment described, obtain the current power adjusted value corresponding with described one group of power contorl parameters;
Based on current power adjusted value determination actual power adjusted value;
According to the transmitted power of described actual power adjusted value and one group of power contorl parameters adjustment SRS.
A Poewr control method of SRS, comprising:
In at least one power adjustment of subscriber equipment, determine the current power adjusted value corresponding with one group of power contorl parameters that subscriber equipment is selected, described one group of power contorl parameters is selected in preset multiple power control parameter by subscriber equipment; Described current power adjusted value and described one group of power contorl parameters are used for adjusting the transmitted power of the SRS of subscriber equipment;
The power adjustment message comprising at least one power adjustment is provided to subscriber equipment, and for indicating the indication information of current power adjusted value at least one power adjustment.
A kind of subscriber equipment, comprising:
Receiving element, for receiving the power adjustment message that network equipment sends, described power adjustment message comprises at least one power adjustment of subscriber equipment;
Parameter selection unit, for selecting one group of power contorl parameters in preset multiple power control parameter;
Adjusted value selected cell, for based on the indication information from network equipment, obtains the current power adjusted value corresponding with described one group of power contorl parameters at least one power adjustment described;
Determining unit, for based on current power adjusted value determination actual power adjusted value;
Adjustment unit, for the transmitted power according to described actual power adjusted value and described one group of power contorl parameters adjustment SRS.
A kind of network equipment, comprising:
Determining unit, for the current power adjusted value that the one group of power contorl parameters determined at least one power adjustment of subscriber equipment with subscriber equipment is selected is corresponding, described one group of power contorl parameters is selected in preset multiple power control parameter by subscriber equipment; Described current power adjusted value and described one group of power contorl parameters are used for adjusting the transmitted power of the SRS of subscriber equipment;
Transmitting element, for providing the power adjustment message comprising at least one power adjustment, and for indicating the indication information of current power adjusted value at least one power adjustment to subscriber equipment.
A kind of communication system, comprises any one subscriber equipment and network equipment that the embodiment of the present invention provides.
The embodiment of the present invention adopts the power adjustment message comprising at least one power adjustment of subscriber equipment receiving network equipment and send, one group of power contorl parameters is selected in preset multiple power control parameter, then based on the indication information from network equipment, the current power adjusted value corresponding with one group of power contorl parameters of described selection is obtained at least one power adjustment described, and based on current power adjusted value determination actual power adjusted value, finally according to the transmitted power of one group of power contorl parameters adjustment SRS of actual power adjusted value and selection.Because the program can according to different preset strategies, such as different destination service base stations, or for control algolithms etc. different in serving BS, select different power contorl parameters, and carry out equipment for indicating user by indication information and select corresponding power adjustment to adjust the transmitted power of SRS in many group power adjustment, so the transmitted power of SRS can only be calculated regularly for a serving BS relative to prior art, and the power adjustment that can only send for a power control flow process, greatly improve at multipoint service technical network, the power control accuracy of the SRS especially under heterogeneous network and flexibility.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the Poewr control method of the SRS that the embodiment of the present invention provides;
Fig. 2 is the flow chart of the Poewr control method of the SRS that the embodiment of the present invention provides;
Fig. 3 a is the application scenarios figure of the Poewr control method of the SRS that the embodiment of the present invention provides;
Fig. 3 b is another flow chart of the Poewr control method of the SRS that the embodiment of the present invention provides;
Fig. 4 is the another flow chart of the Poewr control method of the SRS that the embodiment of the present invention provides;
Fig. 5 is the structural representation of the subscriber equipment that the embodiment of the present invention provides;
Fig. 6 is the structural representation of the network equipment that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those skilled in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In order to be described the embodiment of the present invention better, below the computational methods of the transmitted power to SRS are carried out schematic illustration.As follows:
Before subscriber equipment sends SRS, first to determine the transmitted power of SRS, such as, specifically can calculate the transmitted power P of SRS according to formula below sRS(i):
P SRS(i)=min{P CMAX(i),P SRS_OFFSET+10log 10(M SRS)+P O_PUSCH(j)+α(j)·PL+f(i)}；
Wherein, P here cMAXi () is the maximum transmission power of subscriber equipment, P sRS_OFFSET, P o_PUSCHj () and α (j) are the parameters of the high level configuration from subscriber equipment or network equipment, M sRSbe the bandwidth of SRS, PL is the path loss information (pathloss) obtained by subscriber equipment measurement, and f (i) is then the adjusted value of close-loop power control (power control can referred to as power control).The high level that the present embodiment and subsequent embodiment are mentioned can be specifically RRC(RadioResourceContro, wireless heterogeneous networks) layer.
By P sRS(i)=min{P cMAX(i), P sRS_OFFSET+ 10log 10(M sRS)+P o_PUSCH(j)+α (j) PL+f (i) } can find out, network equipment can pass through at physical layer descending control channel (PDCCH, Physicaldownlinkcontrolchannel) upper transmission down physical layer control signal (DCI, Downlinkcontrolinformation) directly control the size of adjusted value (f), thus control the transmitted power P of the SRS of subscriber equipment sRSthe size of (i).Wherein, adjusted value f (i) can be the adjusted value δ (i-K) directly issued by network equipment, also can be an accumulated value, the adjusted value of the transmitted power of i.e. adjusted value f (i)=f (i-1)+δ (i-K), δ (i-K) SRS that to be evolution base station send for subscriber equipment in the i-th-K subframe.
The embodiment of the present invention provides the Poewr control method of a kind of SRS, device and system.Below be described in detail respectively.
Embodiment one,
Angle from subscriber equipment is described by the present embodiment, and this subscriber equipment is specifically as follows the equipment such as mobile phone, panel computer or notebook computer.
A Poewr control method of SRS, comprising: receive the power adjustment message that network equipment sends, this power adjustment message comprises at least one power adjustment of subscriber equipment; One group of power contorl parameters is selected in preset multiple power control parameter; Based on the indication information from network equipment, in this at least one power adjustment, obtain the current power adjusted value corresponding with one group of power contorl parameters of described selection; Based on current power adjusted value determination actual power adjusted value; According to the transmitted power of one group of power contorl parameters adjustment measuring reference signals of the actual power adjusted value determined and selection.
As shown in Figure 1, idiographic flow can be as follows:
101, the power adjustment message that network equipment sends is received.
Wherein, this power adjustment message specifically can comprise at least one power adjustment of subscriber equipment, in addition, can also comprise other and adjust relevant information to power.This power adjustment specifically by network equipment as base station provides.During concrete enforcement, the power adjustment that destination service base station provides only can be carried in power adjustment message, also the power adjustment that multiple serving BS provides can be carried, and then indicate to adopt which power adjustment by the indication information of network equipment, certainly, other mode can also be had, in this no limit.
It should be noted that, wherein, network equipment is specifically as follows base station, the macro base station of such as serving or micro-base station etc. of service, if there is multiple serving BS in subscriber equipment, then this network equipment is specifically as follows any one base station in the plurality of serving BS, it can be generally such as descending serving BS, wherein, the information that other serving BSs provide is as power adjustment etc., can be sent to this serving BS (i.e. network equipment) by the communication between base station, send subscriber equipment to by this serving BS (i.e. network equipment).
102, in preset multiple power control parameter, one group of power contorl parameters is selected;
Wherein, namely each group power contorl parameters means corresponding a kind of power control procedures, can comprise maximum transmission power (the i.e. P of subscriber equipment in each group power contorl parameters cMAX(i)), parameter (the such as P of high-rise configuration sRS_OFFSET, P o_PUSCH(j) and α (j)), bandwidth (the i.e. M of SRS sRS) and the path loss information (pathloss) that obtained by subscriber equipment measurement.
Wherein, specifically can select according to preset strategy when selecting power contorl parameters, this preset strategy can be arranged according to the demand of practical application, such as can be selected according to destination service base station by subscriber equipment, or, also can select according to the instruction of network equipment side, etc.Such as, specifically can be as follows:
(1) selected according to destination service base station by subscriber equipment, as follows:
Determine destination service base station, in preset multiple power control parameter, select one group of power contorl parameters according to the destination service base station determined, in preset multiple power control parameter, namely obtain one group of power contorl parameters corresponding to this destination service base station.
Wherein, can by accepting the top signaling configuration of network equipment, then utilize this top signaling to configure and know which serving BS the destination service base station of current business is, or, other notification messages that network equipment sends can also be received, know which serving BS the destination service base station of current business is according to notification message, etc.Such as, if the up serving BS of subscriber equipment is base station A, the descending serving BS of subscriber equipment is base station B, if then need to measure the down channel of this subscriber equipment, then the destination service base station of the SRS of subscriber equipment transmission is base station B, otherwise, if need to measure the up channel of this subscriber equipment, then the destination service base station of the SRS of subscriber equipment transmission is base station A, by that analogy, etc.
In addition, can be the preset multiple power control parameter of SRS, the corresponding serving BS of each group power contorl parameters or a class serving BS.Like this, after determining destination service base station, just can find one group of corresponding power contorl parameters according to the destination service base station determined.
(2) select according to the instruction of network equipment; As follows:
Such as, specifically can indicate select which group power contorl parameters by carrying an information in the descending control signaling (DCI, Downlinkcontrolinformation) of network equipment transmission.
It should be noted that, wherein, the execution of step 102 and step 101 can be in no particular order.
103, based on the indication information from network equipment, at least one power adjustment in the power adjustment message that step 101 receives, the current power adjusted value corresponding with the one group of power contorl parameters selected in step 102 is obtained;
Wherein, indication information can obtain in several ways, as by high-rise control signal configuration etc., or, if in a step 101, carry out through-put power adjustment information by DCI, then now can also obtain this indication information by DCI.Such as, any one following mode specifically can be adopted to obtain indication information:
(1) indicated by the SRS trigger message position in DCI.
Namely, SRS trigger message position is set in DCI, indication information is carried by this SRS trigger message position, be used to indicate subscriber equipment and should select which power adjustment, like this, after subscriber equipment receives DCI, just can obtain this indication information by the SRS trigger message position in this DCI, thus at least one power adjustment, obtain the current power adjusted value corresponding with the one group of power contorl parameters selected in step 102 according to this indication information.Such as, if have the SRS trigger message position of 1bit in DCI, and by first group power contorl parameters year correspondence control flow be called " power control flow process 1 ", by second group power contorl parameters year correspondence control flow be called " power control flow process 2 ", so, if trigger message position is set to ' 0 ', the power adjustment that then this DCI carries will be used to power control flow process 1, if trigger message position is set to ' 1 ', the power adjustment of so carrying for the information bit of through-put power adjustment information will be used to power control flow process 2.
(2) indicated by Radio Network Temporary Identity mark (PC-RNTI, PowerControl-RadioNetworkTemporaryIdentifier).
Similar with (1) mode, (2) mode is also by carrying indication information in DCI, with (1) mode unlike, (2) mode is not direct instruction, but by adopting PC-RNTI to carry out scrambling to DCI, then determine current PC-RNTI by subscriber equipment by carrying out descrambling to this DCI, and then determine the indication information that this current PC-RNTI indicates.Namely, before step " based on the indication information from network equipment, obtains the current power adjusted value corresponding with one group of power contorl parameters of described selection " at least one power adjustment described, the Poewr control method of this SRS can also comprise:
By determining current PC-RNTI to DCI descrambling, to determine the described indication information that this current PC-RNTI indicates.
Such as, if by first group power contorl parameters year correspondence control flow be called " power control flow process 1 ", by second group power contorl parameters year correspondence control flow be called " power control flow process 2 ", and the PC-RNTI corresponding to power control flow process 1 is " XXXX ", PC-RNTI corresponding to power control flow process 2 is " YYYY ", so, after subscriber equipment receives DCI, " XXXX " and " YYYY " is adopted to carry out descrambling to DCI respectively, " if XXXX " can descrambling success, then show that the power adjustment of carrying in this DCI is applicable to power control flow process 1, " if YYYY " can descrambling success, then show that the power adjustment of carrying in this DCI is applicable to power control flow process 2, by that analogy.
(3) configured by high-level signaling and indicate.
Namely before the power adjustment message (step 101) receiving network equipment transmission, the Poewr control method of this SRS can also comprise: receive the high-level signaling that network equipment sends, wherein, this high-level signaling carries indication information.
104, based on current power adjusted value determination actual power adjusted value; Such as, specifically can be as follows:
(1) if do not specify the obtain manner of actual power adjusted value, then direct using current power adjusted value as actual power adjusted value, i.e. f ad(i)=δ (i-K), wherein, f adi () represents actual power adjusted value, δ (i-K) represents current power adjusted value.
(2) if specify the obtain manner of actual power adjusted value, the obtain manner such as indicating actual power adjusted value is direct indicating mode, or indicate the obtain manner of this actual power adjusted value to be accumulation mode etc., then now, after determining current power adjusted value, also need to determine actual power adjusted value according to the obtain manner of actual power adjusted value further, as follows:
If know that the obtain manner of actual power adjusted value is direct indicating mode by the instruction of high-level signaling, then current power adjusted value is defined as actual power adjusted value, i.e. f ad(i)=δ (i-K), wherein, f adi () represents actual power adjusted value, δ (i-K) represents current power adjusted value.Or,
If know that the obtain manner of actual power adjusted value is accumulation mode by the instruction of high-level signaling, then using the actual power adjusted value of last time and described current power adjusted value and as actual power adjusted value, i.e. f ad(i)=f ad(i-1)+δ (i-K), wherein, f adi () represents actual power adjusted value, δ (i-K) represents current power adjusted value, f ad(i-1) last actual power adjusted value is represented.Or,
In addition, subscriber equipment, before transmission SRS, also may receive multiple power adjustment for it, then now can also adopt and obtain actual power adjusted value in another way.Namely as follows:
If know that the obtain manner of actual power adjusted value is direct indicating mode by the instruction of high-level signaling; Then when the current power adjusted value obtained has multiple, one that selects finally to receive in multiple current power adjusted value as actual power adjusted value.Or,
If know that the obtain manner of actual power adjusted value is accumulation mode by the instruction of high-level signaling; Then obtain current power adjusted value have multiple time, using multiple current power adjusted value and as actual power adjusted value.
It should be noted that, because the validity for power adjustment message before launching SRS has a time restriction, such as, SRS sends in the n-th subframe, the power adjustment message so only received before the n-th-k subframe is just effective, wherein, the value of k can be arranged according to the demand of practical application.So should be understood that, the embodiment of the present invention said " current power adjustment information " all refers to effective power adjustment message; Such as, if SRS sends in the n-th subframe, and the power adjustment message that Operation system setting received before the n-th-k subframe is just effectively talked about, then previous examples said " current power adjusted value has multiple " refers to, before k subframe before SRS launches (namely before the n-th-k subframe), if having multiple current power adjustment information, be so used as actual power adjusted value according to last the current power adjustment information received before the n-th-k subframe, by that analogy, etc.
Also it should be noted that, wherein, high-level signaling configuration can before subscriber equipment determination actual power adjusted value, and be configured by sending high-level signaling by network equipment, the method about high-level signaling configuration specifically see prior art, can not repeat them here.
105, according to the transmitted power of the one group of power contorl parameters adjustment SRS got in the actual power adjusted value determined in step 102 and step 103.
Such as, if the transmitted power P of SRS sRSi () represents, then specifically how to carry out adjustment and following formula can be adopted to calculate the transmitted power P of SRS sRS(i):
P SRS(i)=min{P CMAX(i),P SRS_OFFSET+10log 10(M SRS)+P O_PUSCH(j)+α(j)·PL+f(i)}；
Wherein, P here cMAXi () is the maximum transmission power of subscriber equipment, P sRS_OFFSET, P o_PUSCHj () and α (j) are the power contorl parameters of high-rise configuration, M sRSbe the bandwidth of SRS, PL is path loss (path loss) information (pathloss) obtained by subscriber equipment measurement, and f (i) is then close-loop power control adjusted value, i.e. the embodiment of the present invention said " actual power adjusted value ".
As from the foregoing, the present embodiment adopts the power adjustment message comprising at least one power adjustment of subscriber equipment receiving network equipment and send, one group of power contorl parameters is selected in preset multiple power control parameter, then based on the indication information from network equipment, the current power adjusted value corresponding with one group of power contorl parameters of described selection is obtained at least one power adjustment described, and based on current power adjusted value determination actual power adjusted value, finally according to the transmitted power of one group of power contorl parameters adjustment SRS of actual power adjusted value and selection.Because the program can according to different preset strategies, such as different destination service base stations, or for control algolithms etc. different in serving BS, select different power contorl parameters, and carry out equipment for indicating user by indication information and select corresponding power adjustment to adjust the transmitted power of SRS in many group power adjustment, so the transmitted power of SRS can only be calculated regularly for a serving BS relative to prior art, and the power adjustment that can only send for a power control flow process, greatly improve at multipoint service technical network, the power control accuracy of the SRS especially under heterogeneous network and flexibility.
Embodiment two,
According to the method described by embodiment one, wherein, power adjustment message specifically can pass through Medium Access Layer (MAC, MediaAccessControl) signaling is transmitted, or, also can adopt descending control signaling (DCI, Downlinkcontrolinformation) at physical layer descending control channel (PDCCH, Physicaldownlinkcontrolchannel) transmit on, that is, the step 101 implemented in specifically can be as follows:
1, the power adjustment message that network equipment is transmitted by MAC signaling is received; Or,
2, the power adjustment message that network equipment is transmitted by DCI is received.Such as, any one mode following can specifically be adopted:
(1) DCI that network equipment sends is received, for convenience, referred to here as a DCI(i.e. the first descending control signaling), one DCI can comprise an information bit for delivering power adjustment information, wherein, this information bit is divided at least two sub-information bits, and each sub-information bit carries a power adjustment.
Such as, be divided at least two sub-information bits for an information bit, so, the power adjustment that one of them sub-information bit can be allowed to carry serving BS A provide, another sub-information bit carries the power adjustment that serving BS B provides.
(2) DCI that network equipment sends is received, for convenience, referred to here as the 2nd DCI(i.e. the second descending control signaling), the 2nd DCI can comprise at least two information bits for delivering power adjustment information, wherein, each information bit carries a power adjustment.
Such as, to comprise two information bits, so, the power adjustment that one of them information bit can be allowed to carry serving BS A provide, another information bit carries the power adjustment that serving BS B provides.
(3) DCI that network equipment sends is received, for convenience, referred to here as the 3rd DCI(i.e. the 3rd descending control signaling), the 3rd DCI can comprise an information bit for delivering power adjustment information, wherein, this information bit carries a power adjustment.
Such as, if destination service base station is serving BS A, then the power adjustment allowing this information bit carry serving BS A to provide, if destination service base station is serving BS B, the power adjustment then allowing this information bit carry serving BS B to provide, by that analogy, etc.
Receiving DCI(such as a DCI, the 2nd DCI or the 3rd DCI of network equipment transmission) after, can the indication information that provides of side apparatus Network Based to know at least one power adjustment of carrying in DCI, which can as current power adjusted value, wherein, explanation about indication information specifically see embodiment one, can not repeat them here.
In addition, in order to improve efficiency of transmission, the power adjustment message for multiple subscriber equipment can be carried in DCI, then informing which position of the power adjustment message of its correspondence of subscriber equipment specifically in DCI by high-level signaling configuration.Such as, DCI can carry the power adjustment message for subscriber equipment A, the power adjustment message for subscriber equipment B and the power adjustment message for subscriber equipment C, etc., then subscriber equipment A is after receiving this DCI, the adjustment information found from this DCI corresponding to subscriber equipment A can be configured according to high-level signaling, in like manner, subscriber equipment B is after receiving this DCI, also can configure according to preset high-level signaling the adjustment information found from this DCI corresponding to subscriber equipment B, by that analogy.That is, if include the power adjustment message for multiple subscriber equipment in DCI, then the method can also comprise:
Receive the high-level signaling carrying the corresponding relation of at least one power adjustment described and subscriber equipment that network equipment sends;
Then now, before described " based on the indication information from network equipment, obtaining the current power adjusted value (i.e. step 103) corresponding with one group of power contorl parameters of described selection at least one power adjustment described ", can also comprise:
Based on the corresponding relation of at least one power adjustment described and subscriber equipment, be that described subscriber equipment extracts at least one power adjustment described in power adjustment message.
In addition, in order to improve the fail safe of signalling, network equipment is at transmission DCI(such as a DCI, the 2nd DCI or the 3rd DCI) time, can also be encrypted DCI, the manner of decryption of then being consulted according to both sides' (i.e. subscriber equipment and network equipment) by subscriber equipment carries out scrambling to DCI, to obtain DCI.Such as, network equipment can give user device configuration one mark (ID, Identifier), as PC-RNTI, when network equipment needs to carry the DCI of power adjustment to the transmission of this subscriber equipment, PC-RNTI just can be adopted to carry out scrambling, after subscriber equipment receives the DCI after encryption to this DCI received, according to the PC-RNTI closely known, descrambling is carried out to the DCI after this encryption, just can get power adjustment wherein.Optionally, for the power contorl parameters of difference group, also different PC-RNTI can be configured, subscriber equipment carries out the power adjustment corresponding to the power contorl parameters that descrambling obtains different group by different PC-RNTI, now, this scrambling and descrambling operation are equivalent to be used to refer to the indication information selecting which power adjustment, specifically see the indicating mode about indication information in embodiment one, can not repeat them here.Certainly, for the power contorl parameters of difference group, identical PC-RNTI can be configured, do not repeat them here.
Because existing DCI has different forms (DCIformat), an information bit can be there is for transmitting SRS power adjustment, such as DCIformat0, DCIformat4, DCIformat3 and DCIformat3a in some form.So, can on the basis of existing DCI, by dividing " information bit for delivering power adjustment information ", or increase new " information bit for delivering power adjustment information " and carry multiple power adjustment.
Such as, in prior art, 2 (bit) are had to be used for carrying the power adjustment (being such as the power adjustment that descending serving BS A provides) for existing power control procedures in certain DCI, so in embodiments of the present invention, can be two parts (being namely divided into two sub-information bits) by 2bit cutting, front 1bit is used for carrying the power adjustment for existing power control procedures, and then 1bit then can be used for carrying the power adjustment (being such as the power adjustment that up serving BS B provides) for newly-increased power control procedures.
Again such as, in prior art, the original size of DCI is 20bit, and so after high-level signaling configuration, the size of this DCI can be increased to 22bit, wherein, newly-increased 2bit carries the power adjustment for newly-increased for carrying out.
Or also can continue to use existing DCI format, just before transmission DCI, inform subscriber equipment by network equipment by high-level signaling configuration, the power adjustment entrained by current DCI is the power adjustment which serving BS provides.
It should be noted that, in order to reduce amount of information, in the various load modes of above-mentioned power adjustment message, the power adjustment sent can not be concrete numerical value, but an index value, then search according to the index value received the concrete numerical value that power adjustment mapping table obtains corresponding power adjustment by subscriber equipment.
Below be only described to carry a power adjustment (namely carrying altogether two power adjustment) in DCI more, should be understood that, the power adjustment of carrying can for multiple, such as, one " information bit for delivering power adjustment information " can be divided into 3 parts or 4 parts, even 5 parts etc., each part is a sub-information bit, and a sub-information bit carries a power adjustment; Again such as, DCI can also be increased by two information bits or 3 information bits, etc., each information bit can carry a power adjustment, by that analogy, does not repeat them here.In addition, in this DCI except carrying the information bit for delivering power adjustment information, can also carry SRS trigger message position, be used to indicate and select which power control value at least one power adjustment, detailed in Example one, does not repeat them here.Such as, if have the SRS trigger message position of 1bit in DCI, the information bit for through-put power adjustment information of 2bit, and by first group power contorl parameters year correspondence control flow be called " power control flow process 1 ", by second group power contorl parameters year correspondence control flow be called " power control flow process 2 ", so, if trigger message position is set to " 0 ", the power adjustment that then this DCI carries will be used to power control flow process 1, if trigger message position is set to " 1 ", the power adjustment of so carrying for the information bit of through-put power adjustment information will be used to power control flow process 2.
In addition, also it should be noted that, if adopt DCI to carry out the transmission of power control information, then subscriber equipment is when receiving the DCI that network equipment sends, and can also first judge DCI, determines the Poewr control method that DCI is applicable to the embodiment of the present invention and provides, if be suitable for, just perform step 101, otherwise the power adopting the method for prior art to carry out SRS controls.Such as, any one method following specifically can be adopted to judge:
1, DCIformat(form is judged) whether have SRS burst capability, if so, then show to go for the Poewr control method that the embodiment of the present invention provides, if not, then the power adopting the method for prior art to carry out SRS controls.Such as, DCIformat1a, DCIformat2b, DCIformat2c, DCIformat0 or DCIformat4 just have SRS burst capability, therefore can be applicable to the Poewr control method that the embodiment of the present invention provides.
2, judge whether DCIformat meets the following conditions simultaneously: (1) this DCI format is used for carrying out downlink data dispatching; (2) this DCI format has SRS burst capability.If can meet this two conditions simultaneously, then show to go for the Poewr control method that the embodiment of the present invention provides, if can not meet this two conditions simultaneously, then the power adopting the method for prior art to carry out SRS controls.Such as, DCIformat1a, DCIformat2b or DCIformat2c just can meet above two conditions, therefore can be applicable to the Poewr control method that the embodiment of the present invention provides.
3, judge whether DCIformat meets the following conditions simultaneously: (1) this DCI format is used for carrying out downlink data dispatching; (2) this DCI format has SRS burst capability; (3) triggering of SRS has been carried out in the SRS trigger message position of this DCI.If can meet this three conditions simultaneously, then show to go for the Poewr control method that the embodiment of the present invention provides, if can not meet this three conditions simultaneously, then the power adopting the method for prior art to carry out SRS controls.Such as, DCIformat1a, DCIformat2b or DCIformat2c just can meet above three conditions, when DCIformat1a/2b/2c is handed down to subscriber equipment, and subscriber equipment has carried out SRS triggering according to SRS trigger message position wherein, then go for the Poewr control method that the embodiment of the present invention provides.
4, judge whether DCIformat meets the following conditions simultaneously: (1) this DCI format is used for carrying out uplink data scheduling; (2) this DCI format has SRS burst capability.If can meet this two conditions simultaneously, then show to go for the Poewr control method that the embodiment of the present invention provides, if can not meet this two conditions simultaneously, then the power adopting the method for prior art to carry out SRS controls.Such as, DCIformat0 or DCIformat4 just can meet above two conditions, therefore can be applicable to the Poewr control method that the embodiment of the present invention provides.
5, judge that DCIformat meets the following conditions simultaneously: (1) this DCI format is used for carrying out uplink data scheduling; (2) this DCI format has SRS burst capability; (3) triggering of SRS has been carried out in the SRS trigger message position of this DCI.If can meet this three conditions simultaneously, then show to go for the Poewr control method that the embodiment of the present invention provides, if can not meet this three conditions simultaneously, then the power adopting the method for prior art to carry out SRS controls.Such as, DCIformat0 or DCIformat4, and carried out SRS triggering, just can meet above three conditions, therefore can be applicable to the Poewr control method that the embodiment of the present invention provides.
6, judge that whether DCIformat controls adjustment for group's power, if so, then show to go for the Poewr control method that the embodiment of the present invention provides, if not, then the power adopting the method for prior art to carry out SRS controls.Such as DCIformat3 or DCIformat3a just may be used for group's power control adjustment, therefore can be applicable to the Poewr control method that the embodiment of the present invention provides.
As from the foregoing, the embodiment of the present invention is on the basis of embodiment one, provide the power adjustment message that various ways sends to receive network equipment, therefore, except can reaching the effective effect described by embodiment one, the flexibility ratio that the scheme that further improves realizes and selectivity, and, the method of these delivering power adjustment information only needs to do simple amendment to existing DCI, can be suitable for most application scenarioss, realize comparatively simple.
Embodiment three,
Angle from network equipment is described by the present embodiment, and this network equipment is specifically as follows base station, the macro base station of such as serving or micro-base station etc. of service.
A Poewr control method for measuring reference signals, as shown in Figure 2, idiographic flow can be as follows:
201, at least one power adjustment of subscriber equipment, the current power adjusted value corresponding with one group of power contorl parameters that subscriber equipment is selected is determined.
Wherein, " one group of power contorl parameters that subscriber equipment is selected " is selected in preset multiple power control parameter by subscriber equipment; Current power adjusted value and this " power contorl parameters of a group selection " then adjust for the transmitted power of the measuring reference signals to subscriber equipment; Specifically see preceding embodiment, can not repeat them here.
202, the power adjustment message comprising at least one power adjustment is provided to subscriber equipment, and for indicating the indication information of current power adjusted value at least one power adjustment.
Such as, specifically can by MAC signaling to subscriber equipment transmitted power adjustment information; Or, also can by DCI to subscriber equipment transmitted power adjustment information, wherein, the mode being carried out transmitted power adjustment information by DCI specifically see embodiment two, can not repeated them here.
Wherein, indication information can be supplied to subscriber equipment in several ways, is supplied to subscriber equipment etc. as by high-rise control signal configuration, or, if carry out through-put power adjustment information by DCI, then now can also send this indication information to subscriber equipment by DCI.Such as, any one following mode specifically can be adopted to obtain indication information:
(1) indicated by the SRS trigger message position in DCI, see embodiment one, do not repeat them here.
(2) indicated by PC-RNTI;
Then now, by DCI to before subscriber equipment transmitted power adjustment information, can also comprise:
Adopting described PC-RNTI to carry out scrambling to described descending control signaling, so that subscriber equipment determines current PC-RNTI by carrying out descrambling to this DCI, and then determining the described indication information that described current PC-RNTI indicates.
See embodiment one, do not repeat them here.
(3) configured by high-level signaling and indicate, see embodiment one, do not repeat them here.
In addition, in order to improve efficiency of transmission, the power adjustment message for multiple subscriber equipment can be carried in DCI, then informing which position of the power adjustment message of its correspondence of subscriber equipment specifically in DCI by high-level signaling configuration.Even power adjustment message also comprises other at least one power adjustment of other subscriber equipmenies, before then step " provides the power adjustment message comprising at least one power adjustment (i.e. step 202) to subscriber equipment ", the Poewr control method of this SRS can also comprise:
High-level signaling is sent to subscriber equipment, the corresponding relation of at least one power adjustment described and subscriber equipment is carried in this high-level signaling, so that subscriber equipment is according to based on this " corresponding relation of at least one power adjustment and subscriber equipment ", for this subscriber equipment extracts at least one power adjustment described in power adjustment message.
As from the foregoing, the present embodiment adopts determines the current power adjusted value corresponding with one group of power contorl parameters that subscriber equipment is selected at least one power adjustment of subscriber equipment, then the power adjustment message comprising this at least one power adjustment is provided to subscriber equipment, and for indicating the indication information of current power adjusted value at least one power adjustment, so that subscriber equipment can select corresponding power adjustment to adjust the transmitted power of SRS for different power contorl parameters in many group power adjustment, greatly improve at multipoint service technical network, the power control accuracy of the SRS especially under heterogeneous network and flexibility.
Embodiment four,
Method described by preceding embodiment, elaborates citing below.
As shown in Figure 3 a, be integrated with the output control device that the embodiment of the present invention provides in subscriber equipment A, and this subscriber equipment A there are two serving BSs: macro base station B and micro-base station C, wherein, macro base station B is the downstream service base station of subscriber equipment A, and micro-base station C is the upstream service base station of subscriber equipment A.
First, two groups of power contorl parameters can be set for SRS is preset, one group of corresponding macro base station B of power contorl parameters, the corresponding micro-base station C of another group power contorl parameters.Secondly, micro-base station C needs to communicate with macro base station B, the power adjustment that micro-base station C provides is sent to macro base station B, is supplied to subscriber equipment A by macro base station B.Then as shown in Figure 3 b, the flow process of the Poewr control method of SRS specifically can be as follows:
301, macro base station B passes through MAC signaling transmission power adjustment information to subscriber equipment A, wherein, this power adjustment message comprises power adjustment 1 and power adjustment 2, the power adjustment that power adjustment 1 provides for macro base station B, the power adjustment that power adjustment 2 provides for micro-base station C.Power adjustment 1 is arranged in the front 1bit of power adjustment message, and power adjustment 2 is arranged in the rear 1bit of power adjustment message.
It should be noted that, power adjustment 2 can send macro base station B to by the communication between micro-base station C and macro base station B, specifically see prior art, can not repeat them here.
302, subscriber equipment A determines the destination service base station sending SRS, and from preset two groups of power contorl parameters, selects one group of corresponding power contorl parameters according to the destination service base station determined.
Such as, in the present embodiment, if need to measure down channel, then destination service base station is macro base station B, if need to measure up channel, then destination service base station is micro-base station C, for convenience, and below will for destination service base station for macro base station B be described.
If the destination service base station determined is macro base station B, then now, subscriber equipment A selects the one group power contorl parameters corresponding with macro base station B.
Wherein, one group of power contorl parameters can comprise the maximum transmission power P of subscriber equipment cMAX(i), the parameter P of high-rise configuration sRS_OFFSET, P o_PUSCHthe bandwidth M of (j) and α (j), SRS sRS, and by path loss information PL that subscriber equipment A measurement obtains.
303, subscriber equipment A configures from power adjustment message according to high-level signaling, the current power adjusted value corresponding to one group of power contorl parameters selected in obtaining step 302.
Wherein, indication information is carried in the configuration of this high-level signaling, be used to indicate this position of current power adjustment in power adjustment message, in addition, the configuration of this high-level signaling also indicates the obtain manner of actual power adjusted value, and the configuration of this high-level signaling specifically can be configured to subscriber equipment A by sending high-level signaling by macro base station B.
Such as, if need to measure (namely destination service base station is macro base station B) down channel, then now, according to high-level signaling configuration, subscriber equipment A can know that current power adjusted value to be specifically arranged in before power adjustment message on 1bit, so 1bit extracts current power adjusted value before from power adjustment message, namely extract power adjustment 1.
Certainly, in order to easy to carry and saving amount of information, this current power adjustment can not be a concrete numerical value, but an index value, then obtained the concrete numerical value of power adjustment by searching power adjustment mapping table according to this index value by subscriber equipment A, for convenience, below will be specially an index value for this current power adjustment to be described.Wherein, power adjustment mapping table specifically can see table one.
Table one:
Power controls adjusted value Accumulation mode δ [dB] Directly indicate δ [dB]
00 -1 -4
01 0 -1
10 1 1
11 3 4
…… …… ……
It should be noted that, the power adjustment mapping table shown in table one is only a kind of pattern wherein, should be understood that, power adjustment mapping table can also exist with other pattern, does not repeat them here.
In addition, also it should be noted that, except adopting high-level signaling to carry except indication information, other mode can also be adopted to carry indication information, refer to preceding embodiment, do not repeat them here.
304, subscriber equipment A determines the obtain manner of actual power adjusted value according to high-level signaling configuration, if the obtain manner of this actual power adjusted value is direct indicating mode, then directly using this current power adjustment as actual power adjusted value, i.e. f ad(i)=δ (i-K); If the obtain manner of this actual power adjusted value is accumulation mode, then will obtain last actual power adjusted value, using the actual power adjusted value of last time and current power adjusted value and as actual power adjusted value, i.e. f ad(i)=f ad(i-1)+δ (i-K).Wherein, f adi () represents actual power adjusted value, δ (i-K) represents current power adjusted value, f ad(i-1) last actual power adjusted value is represented.
Such as, if in step 303, the index value of the current power adjusted value determined is " 11 ", then known by look-up table one, the concrete numerical value of the current power adjusted value corresponding to direct indicating mode is " 4 ", and the concrete numerical value of the current power adjusted value corresponding to accumulation mode is " 3 ", if determine that the obtain manner of actual power adjusted value is direct indicating mode according to high-level signaling configuration, so, according to f adi ()=δ (i-K) is known, actual power adjusted value f adi the concrete numerical value of () is " 4 "; If determine that the obtain manner of actual power adjusted value is bulk billing system according to high-level signaling configuration, and the actual power adjusted value of last time is "-1 ", so, according to f ad(i)=f ad(i-1)+δ (i-K) is known, actual power adjusted value f adi the concrete numerical value of () is " 2 ".
305, subscriber equipment A calculates the transmitted power of SRS according to the one group of power contorl parameters got in the actual power adjusted value obtained in step 304 and step 302, as follows:
P SRS(i)=min{P CMAX(i),P SRS_OFFSET+10log 10(M SRS)+P O_PUSCH(j)+α(j)·PL+f ad(i)}；
Wherein, P sRSi () represents the transmitted power of SRS, P cMAXi () is the maximum transmission power of subscriber equipment, P sRS_OFFSET, P o_PUSCHj () and α (j) are the parameters of high-rise configuration, M sRSbe the bandwidth of SRS, PL is the path loss information obtained by subscriber equipment measurement.
The transmitted power of the SRS 306, obtained according to step 305 sends SRS to destination service base station, and such as, if destination service base station is macro base station B, then the transmitted power of the SRS obtained according to step 305 sends SRS to macro base station B.
It should be noted that, in the present embodiment, mainly power contorl parameters is selected to be described for subscriber equipment according to destination service base station, should be understood that, also can directly indicate to select which group power contorl parameters by base station, its method realized, similar to the above, do not repeat them here.In addition, in the present embodiment, only be described to carry out delivering power adjustment information by MAC signaling, should be understood that, delivering power adjustment information can also be carried out by DCI signaling, wherein, the method that DCI signaling carries power adjustment message specifically see embodiment two, can not repeat them here.
As from the foregoing, the macro base station B of the embodiment of the present invention can comprise the power adjustment message of two power adjustment of subscriber equipment A to subscriber equipment A by the transmission of MAC signaling, destination service base station is determined by subscriber equipment A, in preset multiple power control parameter, one group of corresponding power contorl parameters is obtained according to destination service base station, then macro base station B carrys out equipment for indicating user selection current power adjusted value by carrying indication information in high-level signaling, and then determine actual power adjusted value, the transmitted power of SRS is finally calculated according to actual power adjusted value and the one group of power contorl parameters got.Because the program can for different destination service base stations, different power contorl parameters and actual power adjusted value is adopted to calculate the transmitted power of SRS, so the transmitted power of SRS can only be calculated regularly for a serving BS relative to prior art, and the power adjustment that can only send for a power control flow process, greatly improve power control accuracy and the flexibility of the SRS under heterogeneous network.
Embodiment five,
Subscriber equipment, before transmission SRS, also may receive multiple power adjustment for it, therefore, except the method for the calculating actual power adjusted value provided except embodiment four, can also adopt another kind of computational methods, citing is described below.
In the present embodiment, be still described for the application scenarios in Fig. 3 a.With embodiment four unlike, in the present embodiment, do not carry out delivering power control information by MAC signaling, but carry out delivering power control information by DCI signaling.
First, two groups of power contorl parameters can be set for SRS is preset, one group of corresponding macro base station B of power contorl parameters, the corresponding micro-base station C of another group power contorl parameters.Secondly, micro-base station C needs to communicate with macro base station B, the power adjustment that micro-base station C provides is sent to macro base station B, is supplied to subscriber equipment A by macro base station B.Then as shown in Figure 4, the flow process of the Poewr control method of SRS specifically can be as follows:
401, macro base station B passes through DCI delivering power adjustment information to subscriber equipment A, wherein, this power adjustment message comprises power adjustment 1 and power adjustment 2, the power adjustment that power adjustment 1 provides for macro base station B, the power adjustment that power adjustment 2 provides for micro-base station C.
Wherein, the method that DCI carries power adjustment message has multiple, specifically can see embodiment two, in the present embodiment, be described to include two information bits for delivering power adjustment information in DCI, wherein, first information bit carries power adjustment 1, and second information bit carries power adjustment 2.
It should be noted that, power adjustment 2 can send macro base station B to by the communication between micro-base station C and macro base station B, specifically see prior art, can not repeat them here.
402, subscriber equipment A determines the destination service base station sending SRS, and from preset two groups of power contorl parameters, selects one group of corresponding power contorl parameters according to the destination service base station determined.
Such as, in the present embodiment, if need to measure down channel, then destination service base station is macro base station B, if need to measure up channel, then destination service base station is micro-base station C, for convenience, and below will for destination service base station for macro base station B be described.
If the destination service base station determined is macro base station B, then now, subscriber equipment A selects the one group power contorl parameters corresponding with macro base station B.
Wherein, one group of power contorl parameters can comprise the maximum transmission power P of subscriber equipment cMAX(i), the parameter P of high-rise configuration sRS_OFFSET, P o_PUSCHthe bandwidth M of (j) and α (j), SRS sRS, and by path loss information PL that subscriber equipment A measurement obtains.
403, subscriber equipment A configures from power adjustment message according to high-level signaling, the current power adjusted value corresponding to one group of power contorl parameters selected in obtaining step 402.
Wherein, indication information is carried in the configuration of this high-level signaling, be used to indicate this position of current power adjustment in power adjustment message, in addition, the configuration of this high-level signaling also indicates the obtain manner of actual power adjusted value, and the configuration of this high-level signaling specifically can be configured to subscriber equipment A by sending high-level signaling by macro base station B.
Such as, if need to measure (namely destination service base station is macro base station B) down channel, then now, the current power adjusted value that subscriber equipment A can configure corresponding to the one group of power contorl parameters knowing selection in step 402 according to high-level signaling is specifically arranged in DCI first " information bit for delivering power adjustment information ", so extract current power adjusted value from first DCI " information bit for delivering power adjustment information ", namely extract power adjustment 1.
Certainly, in order to easy to carry and saving amount of information, this current power adjustment can not be a concrete numerical value, but an index value, then obtained the concrete numerical value of power adjustment by searching power adjustment mapping table according to this index value by subscriber equipment A, for convenience, below will be specially an index value for this current power adjustment to be described.Wherein, power adjustment mapping table specifically can see table one.
In addition, also it should be noted that, except adopting high-level signaling to carry except indication information, other mode can also be adopted to carry indication information, refer to preceding embodiment, do not repeat them here.
404, subscriber equipment A determines the obtain manner of actual power adjusted value according to high-level signaling configuration, if the obtain manner of this actual power adjusted value is direct indicating mode, and the current power adjusted value got before subscriber equipment A sends SRS has multiple, then select the power adjustment finally received as actual power adjusted value in the plurality of current power adjusted value; If the obtain manner of this actual power adjusted value is accumulation mode, and have multiple sending the current power adjusted value got before SRS, then using the plurality of current power adjusted value and as actual power adjusted value.
Such as, if in step 403, the index value of the current power adjusted value determined is followed successively by " 00 ", " 01 ", " 10 " and " 11 ", then known by look-up table one, the concrete numerical value of the current power adjusted value corresponding to direct indicating mode is followed successively by "-4 ", "-1 ", " 1 " and " 4 ", the concrete numerical value of the current power adjusted value corresponding to accumulation mode is followed successively by "-1 ", " 0 ", " 1 " and " 3 ", if determine that the obtain manner of actual power adjusted value is direct indicating mode, then actual power adjusted value f according to high-level signaling configuration adi the concrete numerical value of () is " 4 "; If determine that the obtain manner of actual power adjusted value is bulk billing system, then actual power adjusted value f according to high-level signaling configuration adi the concrete numerical value of () is " (-1)+0+1+4=4 ".
405, subscriber equipment A calculates the transmitted power of SRS according to the one group of power contorl parameters got in the actual power adjusted value obtained in step 404 and step 402, as follows:
P SRS(i)=min{P CMAX(i),P SRS_OFFSET+10log 10(M SRS)+P O_PUSCH(j)+α(j)·PL+f ad(i)}；
Wherein, P sRSi () represents the transmitted power of SRS, P cMAXi () is the maximum transmission power of subscriber equipment, P sRS_OFFSET, P o_PUSCHj () and α (j) are the parameters of high-rise configuration, M sRSbe the bandwidth of SRS, PL is the path loss information obtained by subscriber equipment measurement.
The transmitted power of the SRS 406, obtained according to step 405 sends SRS to destination service base station, and such as, if destination service base station is macro base station B, then the transmitted power of the SRS obtained according to step 406 sends SRS to macro base station B.
It should be noted that, in the present embodiment, mainly select power contorl parameters to be described for subscriber equipment according to destination service base station, should be understood that also can directly indicate to select which group power contorl parameters by base station, not repeat them here.In addition, in the present embodiment, only be described to be carried out delivering power adjustment information by DCI, should be understood that, delivering power adjustment information can also be carried out by MAC signaling, wherein, the method for carrying power adjustment message by MAC signaling specifically see embodiment two, can not repeat them here.
As from the foregoing, the macro base station B of the embodiment of the present invention can comprise the power adjustment message of two power adjustment of subscriber equipment A to subscriber equipment A by the transmission of DCI signaling, destination service base station is determined by subscriber equipment A, in preset multiple power control parameter, one group of corresponding power contorl parameters is obtained according to destination service base station, then macro base station B carrys out equipment for indicating user selection current power adjusted value by carrying indication information in high-level signaling, and then determine actual power adjusted value, the transmitted power of SRS is finally calculated according to actual power adjusted value and the one group of power contorl parameters got.Because the program can for different destination service base stations, different power contorl parameters and actual power adjusted value is adopted to calculate the transmitted power of SRS, so the transmitted power of SRS can only be calculated regularly for a serving BS relative to prior art, and the power adjustment that can only send for a power control flow process, greatly improve power control accuracy and the flexibility of the SRS under heterogeneous network.
Embodiment six,
In order to implement above method better, the embodiment of the present invention also provides a kind of subscriber equipment, and as shown in Figure 5, this subscriber equipment comprises receiving element 501, parameter selection unit 502, adjusted value selected cell 503, determining unit 504 and adjustment unit 505; Receiving element 501, parameter selection unit 502, adjusted value selected cell 503, determining unit 504 and adjustment unit 505 specifically can be arranged in hardware processor;
Receiving element 501, for receiving the power adjustment message that network equipment sends.
Wherein, this power adjustment message specifically can comprise at least one power adjustment of subscriber equipment, in addition, can also comprise other and adjust relevant information to power.This power adjustment specifically by network equipment as base station provides.During concrete enforcement, the power adjustment that destination service base station provides only can be carried in power adjustment message, also the power adjustment that multiple serving BS provides can be carried, and then configure to indicate to adopt which power adjustment by high-level signaling, certainly, other mode can also be had, in this no limit.
Parameter selection unit 502, for selecting one group of power contorl parameters in preset multiple power control parameter;
Adjusted value selected cell 503, for based on the indication information from network equipment, obtains the current power adjusted value corresponding with one group of power contorl parameters that parameter selection unit 502 is selected in this at least one power adjustment;
Determining unit 504, for the current power adjusted value determination actual power adjusted value determined based on adjusted value selected cell 503;
Adjustment unit 505, for the transmitted power of one group of power contorl parameters adjustment SRS that the actual power adjusted value determined according to determining unit 504 and parameter selection unit 502 are selected.
Wherein, namely each group power contorl parameters means corresponding a kind of power control procedures, can comprise maximum transmission power (the i.e. P of subscriber equipment in each group power contorl parameters cMAX(i)), parameter (the such as P of high-rise configuration sRS_OFFSET, P o_PUSCH(j) and α (j)), bandwidth (the i.e. M of SRS sRS) and the path loss information (pathloss) that obtained by subscriber equipment measurement.
Wherein, specifically can select according to preset strategy when selecting power contorl parameters, this preset strategy can be arranged according to the demand of practical application, such as can be selected according to destination service base station by subscriber equipment, or, also can select according to the instruction of network equipment side, etc., refer to embodiment of the method above, do not repeat them here.
Optionally, determining unit 504 when determining actual power adjusted value, if do not specify the obtain manner of actual power adjusted value, then direct using current power adjusted value as actual power adjusted value, i.e. f ad(i)=δ (i-K), wherein, f adi () represents actual power adjusted value, δ (i-K) represents current power adjusted value.Otherwise, if specify the obtain manner of actual power adjusted value, the obtain manner such as indicating actual power adjusted value is direct indicating mode, or indicate the obtain manner of this actual power adjusted value to be accumulation mode etc., then now, also need the obtain manner first knowing actual power adjusted value, such as, be specifically as follows following any one or various ways:
(1) first kind of way:
Receiving element 501, also for being known that by the instruction of high-level signaling the obtain manner of this actual power adjusted value is direct indicating mode;
Then now, determining unit 504, specifically for current power adjusted value is defined as actual power adjusted value, i.e. f ad(i)=δ (i-K), wherein, f adi () represents actual power adjusted value, δ (i-K) represents current power adjusted value.
(2) second way:
Receiving element 501, also for being known that by the instruction of high-level signaling the obtain manner of described actual power adjusted value is accumulation mode;
Then now, determining unit 504, specifically for using the actual power adjusted value of last time and this current power adjustment and as actual power adjusted value, i.e. f ad(i)=f ad(i-1)+δ (i-K), wherein, f adi () represents actual power adjusted value, δ (i-K) represents current power adjusted value, f ad(i-1) last actual power adjusted value is represented.
In addition, subscriber equipment transmission SRS before, also may receive multiple power adjustment for it, then now can also adopt the 3rd or the 4th kind of mode to obtain actual power adjusted value.As follows:
(3) the third mode:
Receiving element 501, also for being known that by the instruction of high-level signaling the obtain manner of described actual power adjusted value is direct indicating mode;
Then now, determining unit 504, during specifically for having multiple at the current power adjusted value obtained, one that selects finally to receive in multiple current power adjusted value as actual power adjusted value.
(4) the 4th kinds of modes:
Receiving element 501, also for being known that by the instruction of high-level signaling the obtain manner of described actual power adjusted value is accumulation mode;
Then now, determining unit 504, specifically for obtain current power adjusted value have multiple time, using multiple current power adjusted value and as actual power adjusted value.
Severally above determine that the method for actual power adjusted value specifically see embodiment of the method above, can not repeat them here.
In addition, when specifically implementing, power adjustment message can be transmitted by MAC signaling, or, DCI also can be adopted to transmit on PDCCH, that is:
Receiving element 501, specifically for receiving the power adjustment message that network equipment is transmitted by MAC signaling; Or,
Receiving element 501, specifically for receiving the power adjustment message that network equipment is transmitted by DCI.Such as, specifically can be as follows:
Receiving element 501, specifically for receiving first time DCI that network equipment sends, wherein, a DCI comprises an information bit for delivering power adjustment information, this information bit is divided at least two sub-information bits, and each sub-information bit carries a power adjustment; Or,
Receiving element 501, specifically for receive network equipment send the 2nd DCI, wherein, the 2nd DCI comprise at least two information bits for delivering power adjustment information, each information bit carries a power adjustment; Or,
Receiving element 501, specifically for receiving the 3rd DCI that network equipment sends, wherein, the 3rd DCI comprises an information bit for delivering power adjustment information, and described information bit carries a power adjustment.
In addition, in this DCI except carrying the information bit for delivering power adjustment information, can also carry indication information, wherein, this indication information is indicated by SRS trigger message position, that is:
Adjusted value selected cell 503, specifically for based on the indication information in DCI, obtains the current power adjusted value corresponding with one group of power contorl parameters that parameter selection unit 502 is selected at least one power adjustment.
Optionally, indication information, except can being indicated by SRS trigger message position, can also be indicated by PC-RNTI, that is:
If include described indication information also implicit in DCI, and this DCI adopts PC-RNTI to carry out scrambling, then this indication information can be indicated by PC-RNTI, then now, this subscriber equipment can also comprise Descrambling unit;
Descrambling unit, for determining current PC-RNTI by carrying out descrambling to this DCI, to determine the described indication information that this current PC-RNTI indicates;
Then now, adjusted value selected cell 503, specifically for the indication information determined according to Descrambling unit, obtains the current power adjusted value corresponding with one group of power contorl parameters that parameter selection unit 502 is selected in this at least one power adjustment.
Certainly, except carrying except indication information by DCI, indication information can also be obtained by other means, such as, being configured by high-level signaling, that is:
Receiving element 501, also for receiving the high-level signaling that network equipment sends, wherein, this high-level signaling carries described indication information.
In addition, in order to improve efficiency of transmission, the power adjustment message for multiple subscriber equipment can be carried in DCI, then informing which position of the power adjustment message of its correspondence of subscriber equipment specifically in DCI by high-level signaling configuration.That is, if include other at least one power adjustment of other subscriber equipmenies in power adjustment message, then:
Receiving element 501, also for receiving the high-level signaling carrying the corresponding relation of at least one power adjustment described and subscriber equipment that network equipment sends;
Then now, adjusted value selected cell 503, also for the corresponding relation based at least one power adjustment described and subscriber equipment, is that described subscriber equipment extracts at least one power adjustment described in power adjustment message.
This subscriber equipment is specifically as follows the equipment such as mobile phone, panel computer or notebook computer.Network equipment is then specifically as follows base station (comprising evolution base station), the macro base station of such as serving or micro-base station etc. of service, if there is multiple serving BS in subscriber equipment, then this network equipment is specifically as follows any one base station in the plurality of serving BS, it can be generally such as descending serving BS, wherein, the information that other serving BSs provide is as power adjustment etc., can be sent to this serving BS (i.e. network equipment) by the communication between base station, send subscriber equipment to by this serving BS (i.e. network equipment).
It should be noted that, when specifically implementing, above unit can realize as independently entity, also combination in any can be carried out, realize as same or several entities, the enforcement of above unit specifically see embodiment of the method above, can not repeat them here.
As from the foregoing, the receiving element 501 of the subscriber equipment of the embodiment of the present invention can receive the power adjustment message comprising at least one power adjustment of subscriber equipment of network equipment transmission, in preset multiple power control parameter, one group of power contorl parameters is selected by parameter selection unit 502, then by adjusted value selected cell 503 based on the indication information from network equipment, the current power adjusted value corresponding with one group of power contorl parameters of described selection is obtained at least one power adjustment described, and by determining unit 504 based on current power adjusted value determination actual power adjusted value, finally adjusted the transmitted power of SRS according to one group of power contorl parameters of actual power adjusted value and selection by adjustment unit 505.Because the program can according to different preset strategies, such as different destination service base stations, or for control algolithms etc. different in serving BS, select different power contorl parameters, and carry out equipment for indicating user by indication information and select corresponding power adjustment to adjust the transmitted power of SRS in many group power adjustment, so the transmitted power of SRS can only be calculated regularly for a serving BS relative to prior art, and the power adjustment that can only send for a power control flow process, greatly improve at multipoint service technical network, the power control accuracy of the SRS especially under heterogeneous network and flexibility.
Embodiment seven,
Accordingly, the embodiment of the present invention also provides a kind of network equipment, and as shown in Figure 6, this network equipment comprises determining unit 601 and transmitting element 602; Determining unit 601 and transmitting element 602 specifically can be arranged in hardware processor;
Determining unit 601, for the current power adjusted value that the one group of power contorl parameters determined at least one power adjustment of subscriber equipment with subscriber equipment is selected is corresponding;
Wherein, " one group of power contorl parameters that subscriber equipment is selected " is selected in preset multiple power control parameter by subscriber equipment; Current power adjusted value and this " power contorl parameters of a group selection " then adjust for the transmitted power of the measuring reference signals to subscriber equipment; Specifically see preceding embodiment, can not repeat them here.
Transmitting element 602, for providing the power adjustment message comprising at least one power adjustment, and for indicating the indication information of current power adjusted value at least one power adjustment to subscriber equipment.
Such as, specifically can by MAC signaling to subscriber equipment transmitted power adjustment information; Or, also can by DCI to subscriber equipment transmitted power adjustment information, that is:
Transmitting element 601, specifically for passing through MAC signaling to subscriber equipment transmitted power adjustment information; Or,
Transmitting element 602, specifically for by descending control signaling to subscriber equipment transmitted power adjustment information.
Wherein, indication information can be supplied to subscriber equipment in several ways, is supplied to subscriber equipment etc. as by high-rise control signal configuration, or, if carry out through-put power adjustment information by DCI, then now can also send this indication information to subscriber equipment by DCI.Such as, any one following mode specifically can be adopted to obtain indication information:
(1) indicated by the SRS trigger message position in DCI, see embodiment one, do not repeat them here.
(2) indicated by PC-RNTI;
Then now, this network equipment, can also comprise scrambling unit;
Scrambling unit, for by DCI to before subscriber equipment transmitted power adjustment information, PC-RNTI is adopted to carry out scrambling to this DCI, so that subscriber equipment determines current PC-RNTI by carrying out descrambling to this DCI, and then determine the described indication information that this current PC-RNTI indicates, see embodiment one, do not repeat them here.
(3) configured by high-level signaling and indicate;
Then now, transmitting element 601, also for sending the high-level signaling carrying described indication information to this subscriber equipment.
In addition, in order to improve efficiency of transmission, the power adjustment message for multiple subscriber equipment can be carried in DCI, then informing which position of the power adjustment message of its correspondence of subscriber equipment specifically in DCI by high-level signaling configuration.Even power adjustment message also comprises other at least one power adjustment of other subscriber equipmenies, then:
Transmitting element 601, also for before provide the power adjustment message comprising at least one power adjustment to subscriber equipment, the high-level signaling of the corresponding relation carrying at least one power adjustment described and subscriber equipment is provided to subscriber equipment, so that subscriber equipment is according to the corresponding relation based at least one power adjustment described and subscriber equipment, be that described subscriber equipment extracts at least one power adjustment described in power adjustment message.
This network equipment is then specifically as follows base station (comprising evolution base station), the macro base station of such as serving or micro-base station etc. of service.
It should be noted that, when specifically implementing, above unit can realize as independently entity, also combination in any can be carried out, realize as same or several entities, the enforcement of above unit specifically see embodiment of the method above, can not repeat them here.
As from the foregoing, the determining unit 601 of the network equipment of the present embodiment can determine the current power adjusted value corresponding with one group of power contorl parameters that subscriber equipment is selected at least one power adjustment of subscriber equipment, then the power adjustment message comprising this at least one power adjustment is provided to subscriber equipment by transmitting element 601, and for indicating the indication information of current power adjusted value at least one power adjustment, so that subscriber equipment can select corresponding power adjustment to adjust the transmitted power of SRS for different power contorl parameters in many group power adjustment, greatly improve at multipoint service technical network, the power control accuracy of the SRS especially under heterogeneous network and flexibility.
In base station in embodiment seven and embodiment eight and subscriber equipment, the function section that each unit specifically performs, see the description of method flow before, does not repeat herein.
Embodiment eight,
Accordingly, the embodiment of the present invention also provides a kind of communication system, comprises any one subscriber equipment that the embodiment of the present invention provides, and wherein, the explanation of this subscriber equipment specifically can see embodiment six, such as, and specifically can be as follows:
Subscriber equipment, for receiving the power adjustment message that network equipment sends, wherein, power adjustment message comprises at least one power adjustment of subscriber equipment; One group of power contorl parameters is selected in preset multiple power control parameter; Based on the indication information from network equipment, at least one power adjustment described, obtain the current power adjusted value corresponding with one group of power contorl parameters of described selection; Based on current power adjusted value determination actual power adjusted value; According to the transmitted power of one group of power contorl parameters adjustment SRS of this actual power adjusted value and selection.
Wherein, multiple method can be had based on current power adjusted value determination actual power adjusted value, specifically see embodiment of the method above, can not repeat them here.
In addition, the transmission of power adjustment message also in several ways, such as, can adopt MAC signaling to transmit, or, DCI also can be adopted to transmit on PDCCH, etc., that is:
Subscriber equipment, specifically for receiving the power adjustment message that network equipment is transmitted by MAC signaling; Or,
Subscriber equipment, specifically for receiving the power adjustment message that network equipment is transmitted by DCI, specifically see preceding embodiment, can not repeat them here.
In addition, this communication system can also comprise any one network equipment that the embodiment of the present invention provides, specifically can see embodiment seven, such as, and specifically can be as follows:
Network equipment, for the current power adjusted value that the one group of power contorl parameters determined at least one power adjustment of subscriber equipment with subscriber equipment is selected is corresponding, wherein, one group of power contorl parameters that described subscriber equipment is selected is selected in preset multiple power control parameter by subscriber equipment; The power contorl parameters of described current power adjusted value and a described group selection is used for adjusting the transmitted power of the measuring reference signals of subscriber equipment; The power adjustment message comprising at least one power adjustment is provided to subscriber equipment, and for indicating the indication information of current power adjusted value at least one power adjustment, refers to embodiment above, not repeating them here.
As from the foregoing, subscriber equipment in the communication system of the embodiment of the present invention can receive the power adjustment message comprising at least one power adjustment of subscriber equipment that network equipment sends, one group of power contorl parameters is selected in preset multiple power control parameter, then based on the indication information from network equipment, the current power adjusted value corresponding with one group of power contorl parameters of described selection is obtained at least one power adjustment described, and based on current power adjusted value determination actual power adjusted value, finally according to the transmitted power of one group of power contorl parameters adjustment SRS of actual power adjusted value and selection.Because the program can according to different preset strategies, such as different destination service base stations, or for control algolithms etc. different in serving BS, select different power contorl parameters, and carry out equipment for indicating user by indication information and select corresponding power adjustment to adjust the transmitted power of SRS in many group power adjustment, so the transmitted power of SRS can only be calculated regularly for a serving BS relative to prior art, and the power adjustment that can only send for a power control flow process, greatly improve at multipoint service technical network, the power control accuracy of the SRS especially under heterogeneous network and flexibility.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is that the hardware that can carry out instruction relevant by program has come, this program can be stored in a computer-readable recording medium, storage medium can comprise: read-only memory (ROM, ReadOnlyMemory), random access memory (RAM, RandomAccessMemory), disk or CD etc.
Above the Poewr control method of a kind of SRS that the embodiment of the present invention provides, device and system are described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for those skilled in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (27)

1. a Poewr control method for measuring reference signals, is characterized in that, comprising:
Receive the power adjustment message that network equipment sends, described power adjustment message comprises at least one power adjustment of subscriber equipment;
One group of power contorl parameters is selected in preset multiple power control parameter;
Based on the indication information from network equipment, at least one power adjustment described, obtain the current power adjusted value corresponding with described one group of power contorl parameters;
Based on current power adjusted value determination actual power adjusted value;
The transmitted power of measuring reference signals is adjusted according to described actual power adjusted value and described one group of power contorl parameters;
The power adjustment message that described reception network equipment sends, comprising:
Receive the power adjustment message that network equipment is transmitted by Medium Access Layer signaling; Or,
Receive the power adjustment message that network equipment is transmitted by descending control signaling.
2. method according to claim 1, is characterized in that, before the power adjustment message that described reception network equipment sends, also comprises:
Know that the obtain manner of described actual power adjusted value is direct indicating mode by the instruction of the high-level signaling from network equipment;
Comprise based on current power adjusted value determination actual power adjusted value then: based on direct indicating mode, described current power adjusted value is defined as actual power adjusted value.
3. method according to claim 1, is characterized in that, before the power adjustment message receiving network equipment transmission, also comprises:
Know that the obtain manner of described actual power adjusted value is accumulation mode by the instruction of the high-level signaling from network equipment;
Then describedly to comprise based on current power adjusted value determination actual power adjusted value: based on accumulation mode using the actual power adjusted value of last time and described current power adjusted value and as actual power adjusted value.
4. method according to claim 1, is characterized in that,
Also comprise described indication information in described descending control signaling, described indication information is indicated by measuring reference signals trigger message position.
5. method according to claim 1, is characterized in that,
Described descending control signaling adopts Radio Network Temporary Identity mark to carry out scrambling, and described indication information is indicated by described Radio Network Temporary Identity mark;
Then described based on the indication information from network equipment, comprised obtain the current power adjusted value corresponding with described one group of power contorl parameters at least one power adjustment described before: by determining that described Radio Network Temporary Identity identifies to described descending control signaling descrambling, to determine the described indication information of described Radio Network Temporary Identity mark instruction.
6. method according to claim 1, is characterized in that, before the power adjustment message that described reception network equipment sends, also comprises:
Receive the high-level signaling carrying described indication information that network equipment sends.
7. method according to any one of claim 1 to 6, is characterized in that, described power adjustment message also comprises other at least one power adjustment of other subscriber equipment, then:
Before the power adjustment message that described reception network equipment sends, also comprise: receive the high-level signaling carrying the corresponding relation of at least one power adjustment described and subscriber equipment that network equipment sends;
Described based on the indication information from network equipment, obtain the current power adjusted value corresponding with described one group of power contorl parameters at least one power adjustment described before, also comprise: based on the corresponding relation of at least one power adjustment described and subscriber equipment, be that described subscriber equipment extracts at least one power adjustment described in power adjustment message.
8. method according to claim 7, is characterized in that, the described transmitted power according to described actual power adjusted value and described one group of power contorl parameters adjustment measuring reference signals comprises:
Transmitted power based on measuring reference signals described in following formulae discovery:
P SRS(i)＝min{P CMAX(i),P SRS_OFFSET+10log 10(M SRS)+P O_PUSCH(j)+α(j)·PL+f(i)}；
Wherein P sRSi () is the transmitted power of described measuring reference signals, P cMAXi () is the maximum transmission power of subscriber equipment, P sRS_OFFSET, P o_PUSCHj () and α (j) are described one group of power contorl parameters, M sRSbe the bandwidth of measuring reference signals, PL is the information on path loss that subscriber equipment measurement obtains, and f (i) is described actual power adjusted value.
9. a Poewr control method for measuring reference signals, is characterized in that, comprising:
In at least one power adjustment of subscriber equipment, determine the current power adjusted value corresponding with one group of power contorl parameters that subscriber equipment is selected, described one group of power contorl parameters is selected in preset multiple power control parameter by subscriber equipment; Described current power adjusted value and described one group of power contorl parameters are used for adjusting the transmitted power of the measuring reference signals of subscriber equipment;
The power adjustment message comprising at least one power adjustment is provided to subscriber equipment, and for indicating the indication information of current power adjusted value at least one power adjustment;
Describedly provide the power adjustment message comprising at least one power adjustment to subscriber equipment, comprising:
By Medium Access Layer signaling to subscriber equipment transmitted power adjustment information; Or,
By descending control signaling to subscriber equipment transmitted power adjustment information.
10. method according to claim 9, is characterized in that,
Also comprise described indication information in described descending control signaling, described indication information is indicated by measuring reference signals trigger message position.
11. methods according to claim 10, is characterized in that, described indication information is identified by Radio Network Temporary Identity and indicates, then described by descending control signaling to before subscriber equipment transmitted power adjustment information, also comprise:
Adopt described Radio Network Temporary Identity to identify and scrambling is carried out to described descending control signaling, indicate described current power adjusted value to be identified at least one power adjustment by described Radio Network Temporary Identity.
12. methods according to claim 10 or 11, is characterized in that, provide the power adjustment message comprising at least one power adjustment to subscriber equipment, and for indicating the indication information of current power adjusted value to comprise at least one power adjustment:
The high-level signaling carrying described indication information is sent to described subscriber equipment;
The power adjustment message comprising at least one power adjustment is provided to subscriber equipment.
13. methods according to claim 12, it is characterized in that, described power adjustment message also comprises other at least one power adjustment of other subscriber equipmenies, then described the power adjustment message comprising at least one power adjustment is provided to subscriber equipment before, also comprise:
There is provided the high-level signaling of the corresponding relation carrying at least one power adjustment described and subscriber equipment to subscriber equipment, described corresponding relation is used for being described subscriber equipment instruction at least one power adjustment described in described power adjustment message.
14. 1 kinds of subscriber equipmenies, is characterized in that, comprising:
Receiving element, for receiving the power adjustment message that network equipment sends, described power adjustment message comprises at least one power adjustment of subscriber equipment;
Parameter selection unit, for selecting one group of power contorl parameters in preset multiple power control parameter;
Adjusted value selected cell, for based on the indication information from network equipment, obtains the current power adjusted value corresponding with described one group of power contorl parameters at least one power adjustment described;
Determining unit, for based on current power adjusted value determination actual power adjusted value;
Adjustment unit, for the transmitted power according to described actual power adjusted value and described one group of power contorl parameters adjustment measuring reference signals;
Described receiving element, specifically for receiving the power adjustment message that network equipment is transmitted by Medium Access Layer signaling; Or,
Described receiving element, specifically for receiving the power adjustment message that network equipment is transmitted by descending control signaling.
15. subscriber equipmenies according to claim 14, is characterized in that,
Described receiving element, also for being known that by the instruction of the high-level signaling from network equipment the obtain manner of described actual power adjusted value is direct indicating mode;
Then described determining unit, specifically for being defined as actual power adjusted value based on direct indicating mode by described current power adjusted value.
16. subscriber equipmenies according to claim 14, is characterized in that,
Described receiving element, also for knowing that the obtain manner of described actual power adjusted value is accumulation mode from network equipment by the instruction of high-level signaling;
Then described determining unit, specifically for based on accumulation mode using the actual power adjusted value of last time and described current power adjusted value and as actual power adjusted value.
17. subscriber equipmenies according to claim 14, is characterized in that, also comprise described indication information in described descending control signaling, and described indication information is indicated by measuring reference signals trigger message position, then:
Described adjusted value selected cell, specifically for based on the indication information in descending control signaling, obtains the current power adjusted value corresponding with described one group of power contorl parameters at least one power adjustment described.
18. subscriber equipmenies according to claim 14, is characterized in that, described descending control signaling adopts Radio Network Temporary Identity mark to carry out scrambling, and described indication information is indicated by described Radio Network Temporary Identity mark, then also comprise Descrambling unit;
Described Descrambling unit, for by determining that described Radio Network Temporary Identity identifies to described descending control signaling descrambling, to determine the described indication information of described Radio Network Temporary Identity mark instruction;
Described adjusted value selected cell, specifically for the indication information determined according to Descrambling unit, obtains the current power adjusted value corresponding with described one group of power contorl parameters at least one power adjustment described.
19. subscriber equipmenies according to claim 14, is characterized in that,
Described receiving element, also for receiving the high-level signaling carrying described indication information that network equipment sends.
20., according to claim 14 to the subscriber equipment described in 19 any one, is characterized in that, described power adjustment message also comprises other at least one power adjustment of other subscriber equipmenies, then:
Described receiving element, also for receiving the high-level signaling carrying the corresponding relation of at least one power adjustment described and subscriber equipment that network equipment sends;
Described adjusted value selected cell, also for the corresponding relation based at least one power adjustment described and subscriber equipment, is that described subscriber equipment extracts at least one power adjustment described in power adjustment message.
21. subscriber equipmenies according to claim 20, is characterized in that, described adjustment unit is specifically for the transmitted power based on measuring reference signals described in following formulae discovery:
P SRS(i)＝min{P CMAX(i),P SRS_OFFSET+10log 10(M SRS)+P O_PUSCH(j)+α(j)·PL+f(i)}；
Wherein P sRSi () is the transmitted power of described measuring reference signals, P cMAXi () is the maximum transmission power of subscriber equipment, P sRS_OFFSET, P o_PUSCHj () and α (j) are described one group of power contorl parameters, M sRSbe the bandwidth of measuring reference signals, PL is the information on path loss that subscriber equipment measurement obtains, and f (i) is described actual power adjusted value.
22. 1 kinds of network equipments, is characterized in that, comprising:
Determining unit, for the current power adjusted value that the one group of power contorl parameters determined at least one power adjustment of subscriber equipment with subscriber equipment is selected is corresponding, described one group of power contorl parameters is selected in preset multiple power control parameter by subscriber equipment; Described current power adjusted value and described one group of power contorl parameters are used for adjusting the transmitted power of the measuring reference signals of subscriber equipment;
Transmitting element, for providing the power adjustment message comprising at least one power adjustment, and for indicating the indication information of current power adjusted value at least one power adjustment to subscriber equipment;
Described transmitting element, specifically for passing through Medium Access Layer signaling to subscriber equipment transmitted power adjustment information; Or,
Described transmitting element, specifically for by descending control signaling to subscriber equipment transmitted power adjustment information.
23. network equipments according to claim 22, is characterized in that,
Also comprise described indication information in described descending control signaling, described indication information is indicated by measuring reference signals trigger message position.
24. network equipments according to claim 23, is characterized in that, described indication information is identified by Radio Network Temporary Identity and indicates, then also comprise scrambling unit;
Scrambling unit, for by descending control signaling to before subscriber equipment transmitted power adjustment information, adopt described Radio Network Temporary Identity to identify and scrambling is carried out to described descending control signaling, indicate described current power adjusted value to be identified at least one power adjustment by described Radio Network Temporary Identity.
25. network equipments according to claim 23 or 24, is characterized in that,
Described transmitting element, also for sending the high-level signaling carrying described indication information to described subscriber equipment.
26. network equipments according to claim 25, is characterized in that, described power adjustment message also comprises other at least one power adjustment of other subscriber equipmenies, then:
Described transmitting element, also for before provide the power adjustment message comprising at least one power adjustment to subscriber equipment, there is provided the high-level signaling of the corresponding relation carrying at least one power adjustment described and subscriber equipment to subscriber equipment, described corresponding relation is used for being described subscriber equipment instruction at least one power adjustment described in described power adjustment message.
27. 1 kinds of communication systems, is characterized in that, comprise any one subscriber equipment described in claim 14 to 21 and any one network equipment described in claim 22 to 26.
CN201210146279.5A 2012-05-11 2012-05-11 The Poewr control method of measuring reference signals, device and system Active CN103391607B (en)

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