CN101860947B - Method and equipment for multi-carrier uplink power control - Google Patents
Method and equipment for multi-carrier uplink power control Download PDFInfo
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Abstract
The invention discloses a method for multi-carrier uplink power control, which comprises the following steps that: UE receives information transmitted by network-side equipment, wherein the information contains high signaling information and a transmit power control (TPC) command word of an E-PUC channel, and the high signaling information contains a PRXdes_base value corresponding to the UE, a Pe-base maintenance method and carrier subset division information; the UE adjusts and maintains the Pe-base value of each carrier or each carrier subset through the PRXdes_base value and the TPC command word and conducts power control to the E-PUCH channel according to the Pe-base; and the UE transmits uplink data to a base station through the power obtained after power control. By adopting the technical scheme, since the Pe-base parameters and the maintenance method of each carrier are indicated and determined through the high signal of the network side, the user equipment can obtain the Pe-base parameters and the maintenance method of each carrier according to the indication of the high signal to realize the uplink multi-carrier power control.
Description
Technical field
The present invention relates to moving communicating field, particularly, the present invention relates to a kind of method and apparatus of multi-carrier uplink power control.
Background technology
Move the developing direction that becomes modern communication technology with the broadband; 3GPP (3rd GenerationPartnership Project; Third generation partner program) be devoted to the evolution of 3G system, target is development 3GPP wireless access technology towards high data rate, lowly postpones and optimize the evolution of packet data application direction.HSUPA (High Speed Uplink Packet Access, high speed uplink packet inserts) technology is a kind of up enhanced scheme that 3GPP version 6 (Release 6) proposes.LCR TDD (LowChip Rate Time Duplexing Division; Low spreading rate time division duplex) the professional channel architecture of HSUPA comprises E-RUCCH (E-DCH Random access Uplink ControlChannel; Strengthen dedicated channel E-DCH and insert ascending control channel at random), E-PUCH (E-DCHPhysical Uplink Channel; E-DCH physical uplink channel) two up channels and E-AGCH (E-DCH Absolute Grant Channel; The E-DCH absolute grant channel), two down channels of E-HICH (E-DCHHARQ Indicator Channel, E-DCH HARQ just answers indicating channel).HSUPA is divided into scheduled transmission and non-scheduled transmission, and the flow process of scheduled transmission simply is divided into several steps, and is as shown in Figure 1:
Have uplink strengthening data etc. to be sent in a, the terminal buffers, E-RUCCH, request scheduling resource are sent in the terminal;
B, base station node B carry out scheduling of resource according to the dispatch request information of receiving, and on E-AGCH, send resource license information;
C, terminal are according to the resource scheduling information of receiving; Strengthen transformat combination (E-TFC) and select, select suitable TBS (Transport Block Size, transmission block size) and modulation system; Encode afterwards, modulate, on E-PUCH, send uplink strengthening data;
D, Node B receive after the E-PUCH, carry out decoding processing, and verification obtains confirmation ACK/ unacknowledged information nack message according to CRC (CRC), are mapped to after the coding to feed back to this terminal on the E-HICH.
Under the non-scheduled transmission mode, network side is the terminal distribution fixed resource, and E-AGCH information will can not monitored in the terminal, and on fixing physical resource, sends E-PUCH.Network side also can receive user's E-PUCH in the fixed position, through passing through E-HICH behind the demodulation coding to terminal feedback ACK/NACK information.
In present LCR TDD system, adopt traditional mode to carry out the power control of E-PUCH at present by high-level signaling notice expectation received power, basic thought is that open loop adds closed loop and carries out power control.
HSUPA has introduced N frequency characteristic in the standard of 3GPP Release 7; Promptly can there be a plurality of carrier frequency a sub-district, and one of them carrier frequency is the dominant frequency point, and other carrier frequency are auxilliary frequency; UE is the single carrier operation pattern, and working frequency points can be on the dominant frequency point of sub-district also can the auxilliary frequency in the sub-district.The introducing of N frequency has greatly promoted the user capacity of system.N frequency characteristic is to introduce the multicarrier characteristic among the HSUPA to lay a good foundation.Present FDD (Frequency Duplexing Division; FDD) system with up multicarrier as HSPA (High Speed Packet Access; The high-speed packet access) a enhancement techniques is set up the project in 3GPP, and introducing up multi-transceiver technology in the TDD system will be Development Trend.
HSUPA introduces the up peak rate that the multicarrier characteristic can promote the user, and its upstream rate can be descending close with multi-carrier HSDPA, can realize up-downgoing speed symmetry.In addition, with respect to N frequency characteristic, the UE in the multi-carrier HSUPA system can use carrier wave more flexibly.Based on above many benefits, can predict, the multicarrier characteristic of HSUPA will be incorporated in the 3GPP standard very soon.Yet, the single carrier HSUPA under the N frequency, the introducing of multicarrier characteristic can bring a lot of technical problems relevant with carrier wave simultaneously.Wherein power control is exactly an important problem.As everyone knows, in CDMA (Code Division Multiplexing Access, the code division multiple access insert) system power control most important to systematic function, control of the power of E-PUCH and system parameters P among the HSUPA
E-baseMaintenance very big contact is arranged.
Yet the E-PUCH power control for multicarrier does not at present also have the mature technique scheme, therefore is necessary to propose a kind of technical scheme, the problem of the uplink power control of multicarrier in the resolution system.
Summary of the invention
The object of the invention is intended to solve at least the problem of the uplink power control of multicarrier in one of above-mentioned technological deficiency, particularly resolution system.
For achieving the above object, one aspect of the present invention has proposed a kind of method of multi-carrier uplink power control, may further comprise the steps:
Network equipment is that user equipment (UE) distributes available carrier wave, and said available carrier wave is divided into one or more carrier subset, and is said UE allocating power Control Parameter P
E-baseInitial value PRX
Des_base, said P
E-baseMaintenance mode;
Said network equipment is notified said UE corresponding PRX through high-level signaling
Des_baseValue, P
E-baseMaintenance mode and carrier subset division information.
According to embodiments of the invention, said available carrier wave is divided into one or more carrier subset may further comprise the steps:
The criteria for classifying of selected carrier subset, the criteria for classifying of said carrier subset comprises following any one mode or its combination: distribute according to carrier frequency point and divide, divide and divide according to the customer charge size according to carrier wave uplink interference intensity;
Criteria for classifying according to said carrier subset is divided carrier wave.
According to embodiments of the invention, be said UE allocating power Control Parameter P
E-baseInitial value PRX
Des_baseComprise following any one mode or its combination:
Said network equipment is respectively each carrier wave corresponding PRX is set according to the uplink interference intensity of each carrier wave
Des_baseValue;
Said network equipment is respectively each carrier subset corresponding PRX is set according to the mean intensity of the uplink interference of each carrier wave in the said carrier subset
Des_baseValue;
Said network equipment is according to the mean intensity of the uplink interference of all carrier waves, for all carrier waves are provided with identical PRX
Des_baseValue.
According to embodiments of the invention, said P
E-baseMaintenance mode comprise the occupation mode of transmitting power control TPC command word in the said carrier subset.
According to embodiments of the invention, notify the mode of said UE to comprise through high-level signaling:
Said P
E-baseThe signaling of maintenance mode for showing signaling or conceal signaling notice;
Said PRX
Des_baseValue is for showing signaling;
Said carrier subset division information is for showing signaling or conceal signaling notice.
The present invention has also proposed a kind of network equipment on the other hand, comprising:
Distribution module, said distribution module are used to user equipment (UE) and distribute available carrier wave, and said available carrier wave is divided into one or more carrier subset;
Configuration module, said configuration module are used to said UE allocating power Control Parameter P
E-baseInitial value PRX
Des_base, said P
E-baseMaintenance mode;
Select module, said selection module is used for criteria for classifying, the allocating power Control Parameter P of selected carrier subset
E-baseInitial value PRX
Des_baseMode and P
E-baseMaintenance mode.
According to embodiments of the invention, the criteria for classifying of said carrier subset comprises following any one mode or its combination:
Distribution is divided, is divided and divide according to the customer charge size according to carrier wave uplink interference intensity according to carrier frequency point;
Allocating power Control Parameter P
E-baseInitial value PRX
Des_baseComprise following any one mode or its combination:
Said network equipment is respectively each carrier wave corresponding PRX is set according to the uplink interference intensity of each carrier wave
Des_baseValue,
Said network equipment is respectively each carrier subset corresponding PRX is set according to the mean intensity of the uplink interference of each carrier wave in the said carrier subset
Des_baseValue,
Said network equipment is according to the mean intensity of the uplink interference of all carrier waves, for all carrier waves are provided with identical PRX
Des_baseValue;
Said P
E-baseMaintenance mode comprise the occupation mode of transmitting power control TPC command word in the said carrier subset, the occupation mode of said TPC command word comprises following any one mode:
After said UE receives said TPC command word, power control is all carried out in the TPC order that obtains on all carrier waves in the carrier subset,
After said UE receives said TPC command word, the TPC order that all carrier waves in the carrier subset are obtained in a Transmission Time Interval TTI ask average after, only carry out a power control.
According to embodiments of the invention, said network equipment comprises radio network controller (RNC) or base station,
When said network equipment is RNC, said RNC notifies said UE corresponding PRX through high-level signaling
Des_baseValue, P
E-baseMaintenance mode and carrier subset division information;
When said network equipment is the base station, information is sent to said UE in said base station, notifies said UE corresponding PRX
Des_baseValue, P
E-baseMaintenance mode and carrier subset division information.
The present invention has also proposed a kind of method of multi-carrier uplink power control on the other hand, may further comprise the steps:
User equipment (UE) receives information transmitted by network-side equipment, and said information comprises high-level signaling information and E-PUCH channel transmitting power control TPC command word, and wherein said high-level signaling information comprises the PRX that said UE is corresponding
Des_baseValue, P
E-baseMaintenance mode and carrier subset division information;
Said UE is through said PRX
Des_baseThe P of each carrier wave or each carrier subset is adjusted and safeguarded to value and TPC command word
E-baseValue, P
E-base=PRX
Des_base+ step* ∑ TPC=PRX
Des_base+ P
TPC, according to P
E-baseSaid E-PUCH channel is carried out power control, and the transmitted power of said E-PUCH channel is P
E-PUCH=P
E-base+ L+ β
e, wherein L is the circuit loss value that measures from beacon physical channel, β
eFor strengthening the normalized gain factor of transformat combination E-TFC;
Power after said UE controls with power sends upstream data to the base station.
According to embodiments of the invention, said TPC command word is carried in the down channel of said E-PUCH pairing, and said down channel comprises the E-AGCH channel, and/or the E-HICH channel.
According to embodiments of the invention, said PRX
Des_baseValue comprises: the PRX of the current carrier wave of network side high-level signaling configuration
Des_baseValue; The PRX of the current carrier wave place carrier subset of network side high-level signaling configuration
Des_baseValue; The corresponding identical PRX of all carrier subset of network side high-level signaling configuration
Des_baseValue.
According to embodiments of the invention, for the UE of scheduling, behind the parameter GAP of scheduling authorization interval that said UE obtains greater than the network side configuration, the P of said UE
E-baseValue reverts to initial value PRX
Des_base
According to embodiments of the invention, the occupation mode of said TPC command word comprises following any one mode:
After said UE receives said TPC command word, power control is all carried out in the TPC order that obtains on all carrier waves in the carrier subset;
After said UE receives said TPC command word, the TPC order that all carrier waves in the carrier subset are obtained in a Transmission Time Interval TTI ask average after, only carry out a power control.
According to embodiments of the invention, the power of the upstream data of said UE after said base-station transmitting-power control is the smaller value that maximum uplink transmission power in terminal and network allow up maximum transmission power.
The present invention has also proposed a kind of user equipment (UE) on the other hand, comprising:
Receiver module, said receiver module is used to receive information transmitted by network-side equipment, and said information comprises high-level signaling information and E-PUCH channel transmitting power control TPC command word, and wherein said high-level signaling information comprises the PRX that said UE is corresponding
Des_baseValue, P
E-baseMaintenance mode and carrier subset division information;
Power control module, said power control module is used for according to said PRX
Des_baseThe P of each carrier wave or each carrier subset is adjusted and safeguarded to value and TPC command word
E-baseValue, P
E-base=PRX
Des_base+ step* ∑ TPC=PRX
Des_base+ P
TPC, according to P
E-baseSaid E-PUCH channel is carried out power control, and the transmitted power of said E-PUCH channel is P
E-PUCH=P
E-base+ L+ β
e, wherein L is the circuit loss value that measures from beacon physical channel, β
eFor strengthening the normalized gain factor of transformat combination E-TFC;
Sending module, said sending module are used for sending upstream data with the power after the power control to the base station.
According to embodiments of the invention; Said receiver module also comprises parsing module; Said parsing module is used for the said TPC command word of the down channel that is carried on said E-PUCH pairing is parsed from signaling, and said down channel comprises the E-AGCH channel, and/or the E-HICH channel.
According to embodiments of the invention, the employed said PRX of said power control module
Des_baseValue comprises: the PRX of the current carrier wave of network side high-level signaling configuration
Des_baseValue; The PRX of the current carrier wave place carrier subset of network side high-level signaling configuration
Des_baseValue; The corresponding identical PRX of all carrier subset of network side high-level signaling configuration
Des_baseValue.
According to embodiments of the invention, when said power control module carried out power control, the TPC order is independent between each carrier subset used, and the occupation mode of said TPC command word comprises following any one mode:
After said UE receives said TPC command word, power control is all carried out in the TPC order that obtains on all carrier waves in the carrier subset;
After said UE receives said TPC command word, the TPC order that all carrier waves in the carrier subset are obtained in a Transmission Time Interval TTI ask average after, only carry out a power control.
The technical scheme that proposes according to the present invention has solved the problem of the uplink power control of multicarrier in the resolution system.The technical scheme that the present invention proposes is indicated the P that confirms each carrier wave through the high-level signaling of network side
E-baseParameter and maintenance mode, user terminal can obtain the P of each carrier wave according to the indication of high-level signaling
E-baseParameter and maintenance mode, thus realize up multi-carrier power control.A plurality of carrier waves are divided into carrier subset and carry out power control administration among the present invention, and carrier subset can only comprise a carrier wave also can comprise a plurality of carrier waves, have solved power control and the P of E-PUCH under the multicarrier flexibly
E-baseThe problem of parameter maintenance.In addition, the technical scheme that the present invention proposes, very little to the change of existing system, can not influence the compatibility of system, and realize simply, efficiently helping the elevator system performance.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously with easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the sketch map of scheduled transmission flow process;
Fig. 2 is the method flow diagram of multi-carrier uplink power control network side;
Fig. 3 is the structural representation of network equipment;
Fig. 4 is the method flow diagram of multi-carrier uplink power control user equipment side;
Fig. 5 is the structural representation of subscriber equipment.
Embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
The present invention proposes a kind of method of multi-carrier uplink power control, may further comprise the steps: network equipment is that user equipment (UE) distributes available carrier wave, and said available carrier wave is divided into one or more carrier subset, and is said UE allocating power Control Parameter P
E-baseInitial value PRX
Des_base, said P
E-baseMaintenance mode; Network equipment sends information to said UE, notifies said UE corresponding PRX through high-level signaling
Des_baseValue, P
E-baseMaintenance mode and carrier subset division information.
For the ease of understanding the present invention, at first the uplink power control that in LCR TDD system, adopts is made brief account.
In LCR TDD system, adopt traditional mode to carry out power control to E-PUCH by high-level signaling notice expectation received power, basic thought is that open loop adds closed loop.
The transmitted power of E-PUCH is: P
E-PUCH=P
E-base+ L+ β
e, wherein, P
E-PUCHIt is the transmitted power of the physical channel E-PUCH of data channel E-DCH among the HSUPA; L is the circuit loss value that measures from beacon physical channel, can be according to the concrete condition of the configuration of high-level signaling and UE different, according to the path loss information of nearest measurement transmitted power is carried out suitable modification; β
eBe the normalized gain factor of a certain selected E-TFC, this normalized gain factor and datum target carrier interference ratio C/I R
E-base, transmission block size, physical resource, spreading factor, the modulation system of distributing be relevant with the HARQ power bias; P
E-base=PRX
Des_base+ step* ∑ TPC=PRX
Des_base+ P
TPC, PRX
Des_baseIt is the E-PUCH benchmark expectation received power that sends to UE through the RRC signaling.
TPC order receives when a bigger pause is arranged P on initialization or E-AGCH
E-baseBe configured to benchmark expectation received power PRX
Des_base, circuit loss value L upgrades, a promptly nearest measured value, and adopt open Loop Power control.Certainly, P in the process of closed-loop control
E-baseAlso comprise closed-loop control component P
TPC, receive that the TPC of rise orders, then P
E-baseRaise a power control step-size step, otherwise reduce a step-length step; Power control step-size is disposed by high-level signaling.
Usually for scheduled transmission, the TPC order is sent on E-AGCH; For non-scheduled transmission, the TPC order is transmitted on E-HICH, and for the semi-continuous scheduling transmission, the TPC order can also can be transmitted on E-HICH in transmission on the E-AGCH.
As shown in Figure 2, the method flow diagram for the present invention proposes the multi-carrier uplink power control network side may further comprise the steps:
S201: network equipment is that UE distributes available carrier wave, and available carrier wave is divided into one or more carrier subset, and is the relevant uplink power control parameter of UE configuration.
In step S201, need system to distribute suitable available carrier wave for each user, for example, be that user equipment (UE) distributes available carrier wave through network equipment, and available carrier wave is divided into one or more carrier subset.
In the present invention, network equipment includes but not limited to the network equipment in the GSM, for example equipment such as base station, radio network controller (RNC).System is through these equipment, utilize high-level signaling notify user-dependent allocating power Control Parameter several by.P
E-baseInitial value PRX
Des_base, P
E-baseMaintenance mode constant power Control Parameter.Send information through network equipment to UE, realize the corresponding PRX of high-level signaling notice UE
Des_baseValue, P
E-baseMaintenance mode and carrier subset division information.
In order to realize up multi-carrier communication, communication system with the user can with carrier wave be divided into one or more carrier subset and manage.As embodiments of the invention, the division of carrier subset may further comprise the steps:
The criteria for classifying of selected carrier subset; The criteria for classifying of carrier subset can comprise multiple mode; For example: distribute to divide according to carrier frequency point, the principle of employing for example is that a plurality of carrier waves with adjacent frequency are divided into a sub-set, and the carrier wave of isolated frequency is divided into a sub-set; Divide according to carrier wave uplink interference intensity, uplink interference intensity can be used according to Interference Signal Code Power ISCP and confirm that the principle of employing for example is that a plurality of carrier waves that uplink interference intensity is suitable are divided into a sub-set; Divide according to the customer charge size, the principle of employing for example is that the sizable a plurality of carrier waves of customer charge are divided into a sub-set;
Network equipment is divided carrier wave according to the criteria for classifying of carrier subset then, and the result notification UE after will dividing, and for example notifies the subclass sign of its available carrier wave of UE, and certain sub-set sign is corresponding which available carrier wave.
As embodiments of the invention, communication system is UE allocating power Control Parameter P
E-baseInitial value PRX
Des_baseComprise following any one mode or its combination:
Network equipment is respectively each carrier wave corresponding PRX is set according to the uplink interference intensity of each carrier wave
Des_baseValue; Network equipment is respectively each carrier subset corresponding PRX is set according to the mean intensity of the uplink interference of each carrier wave in the said carrier subset
Des_baseValue; Network equipment is according to the mean intensity of the uplink interference of all carrier waves, for all carrier waves are provided with identical PRX
Des_baseValue.
System sends to the P of UE
E-baseMaintenance mode information, comprise the occupation mode of transmitting power control TPC command word in the carrier subset.Usually, system can use multiple mode through the relevant power contorl parameters of high-level signaling notice UE, for example: send P
E-baseThe signaling of maintenance mode for showing signaling or conceal signaling notice; Send PRX
Des_baseValue is for showing signaling; Send the carrier subset division information for showing signaling or conceal signaling notice.
So-called demonstration signaling is meant that said information directly embodies in high-level signaling.For example high-level signaling directly provides PRX
Des_baseValue, directly provide the frequency of each carrier wave in carrier subset label or the carrier subset etc., directly provide P
E-baseMaintenance mode, can with the agreement variable and bit implication notify.So-called conceal signaling notice is meant that said information is not embodied directly in the high-level signaling, but comes the acquisition of implicit expression through out of Memory.A for example high-rise display notification PRX
Des_baseValue, receiving terminal thinks that available carrier wave only distributed a carrier subset so, this carrier subset comprises all available carrier wave, P
E-baseMaintenance mode be all carrier wave associating power controls, perhaps high level has been notified a plurality of PRX
Des_baseValue, and it is identical with the available carrier wave number, receiving terminal thought allocation of carriers a plurality of carrier subset, P so
E-baseMaintenance mode be each carrier wave independence power control.
S202: network equipment sends information to UE, through the relevant uplink power control parameter of high-level signaling notice UE.
After in step S201, confirming relevant parameter, in step S202, above-mentioned information is sent to UE through network equipment.For example, when above-mentioned power contorl parameters was confirmed in RNC, RNC was delivered to the base station with above-mentioned parameter through high-level signaling, sends to UE through the base station.When power contorl parameters is confirmed by base station self, then directly relevant parameter is sent to UE.
As shown in Figure 3, the present invention also discloses a kind of network equipment 300 on the other hand, comprising: distribution module 310, configuration module 320 and selection module 330.
Wherein, distribution module 310 is used to user equipment (UE) and distributes available carrier wave, and available carrier wave is divided into one or more carrier subset; Configuration module 320 is used to UE allocating power Control Parameter P
E-baseInitial value PRX
Des_base, P
E-baseMaintenance mode; Select module 330 to be used for criteria for classifying, the allocating power Control Parameter P of selected carrier subset
E-baseInitial value PRX
Des_baseMode and P
E-baseMaintenance mode.
As the specific embodiment of the said equipment, the criteria for classifying of carrier subset comprises following any one mode or its combination:
Distribution is divided, is divided and divide according to the customer charge size according to carrier wave uplink interference intensity according to carrier frequency point;
Allocating power Control Parameter P
E-baseInitial value PRX
Des_baseComprise following any one mode or its combination:
P
E-baseMaintenance mode comprise the occupation mode of transmitting power control TPC command word in the carrier subset, the occupation mode of TPC command word comprises following any one mode:
After UE receives the TPC command word, power control is all carried out in the TPC order that obtains on all carrier waves in the carrier subset,
After UE receives the TPC command word, the TPC order that all carrier waves in the carrier subset are obtained in a Transmission Time Interval TTI ask average after, only carry out a power control.
Correspondingly, in order to reach the purpose of above-mentioned power control, the operation of respective base station side can be:
The base station produces TPC order to each carrier wave in the carrier subset according to existing technical scheme according to upstream data, and in the corresponding downstream channel, sends; Perhaps
The base station produces identical TPC order according to the upstream data situation of carrying on all carrier subset, and sends identical TPC order at the corresponding downstream channel.
As the specific embodiment of the said equipment, network equipment 300 comprises radio network controller (RNC) or base station,
When network equipment 300 is RNC, RNC is through the corresponding PRX of high-level signaling notice UE
Des_baseValue, P
E-baseMaintenance mode and carrier subset division information;
When network equipment 300 is the base station, information is sent to UE in the base station, the corresponding PRX of notice UE
Des_baseValue, P
E-baseMaintenance mode and carrier subset division information.
The invention allows for a kind of method of multi-carrier uplink power control, as shown in Figure 4, the method flow diagram for the present invention proposes the multi-carrier uplink power control user side may further comprise the steps:
S401:UE receives information transmitted by network-side equipment, obtains the relevant information of uplink power control.
In step S401, UE receives information transmitted by network-side equipment, comprises high-level signaling information and E-PUCH channel transmitting power control TPC command word in the information, and wherein high-level signaling information comprises the PRX that UE is corresponding
Des_baseValue, P
E-baseMaintenance mode and carrier subset division information.
As embodiments of the invention; The TPC command word is carried in the down channel of E-PUCH pairing; Usually down channel comprises the E-AGCH channel, and/or the E-HICH channel, and other that perhaps increases in the follow-up system evolution process carries the channel of E-PUCH power control commands word.
S402:UE is through uplink power control parameter and TPC command word adjustment up-link carrier transmitting power.
In step S402, the power contorl parameters of UE through in step S401, obtaining, adjustment up-link carrier transmitting power.Utilize PRX
Des_baseThe P of each carrier wave or each carrier subset is adjusted and safeguarded to value and TPC command word
E-baseValue, wherein P
E-base=PRX
Des_base+ step* ∑ TPC=PRX
Des_base+ P
TPC, and according to P
E-baseSaid E-PUCH channel is carried out power control.
The transmitted power of the E-PUCH channel after the power control is: P
E-PUCH=P
E-base+ L+ β
e, wherein, L is the circuit loss value that measures from beacon physical channel, can be according to the concrete condition of the configuration of high-level signaling and UE different, according to the path loss information of nearest measurement transmitted power is carried out suitable modification; β
eBe the normalized gain factor of a certain selected E-TFC, this normalized gain factor and datum target carrier interference ratio C/I R
E-base, transmission block size, physical resource, spreading factor, the modulation system of distributing be relevant with the HARQ power bias.
In the above-described embodiments, PRX
Des_baseValue can be the PRX of the current carrier wave of: network side high-level signaling configuration
Des_baseValue, a carrier wave has the PRX of a correspondence
Des_baseValue; The PRX of the current carrier wave place carrier subset of network side high-level signaling configuration
Des_baseValue, a carrier subset has the PRX of a correspondence
Des_baseValue; The corresponding identical PRX of all carrier subset of network side high-level signaling configuration
Des_baseValue.
For dispatched users, behind the parameter GAP of the interval that obtains scheduling authorization as UE greater than the network side configuration, the P that this UE is corresponding
E-baseAdjust, preferably, this user's P
E-baseRevert to initial value: PRX
Des_baseThe value, thus can with the system compatible of present single carrier.
As embodiments of the invention, the occupation mode of TPC command word comprises following any one mode: after UE receives the TPC command word, power control is all carried out in the TPC order that obtains on all carrier waves in the carrier subset; After UE receives the TPC command word, the TPC order that all carrier waves in the carrier subset are obtained in a Transmission Time Interval TTI ask average after, only carry out a power control.That is, be up if obtained TPC1, promptly raise a step-length, TPC2 is down, promptly reduces a step-length, and TPC3 is up, and TPC4 is up.According to aforesaid way, can on corresponding carrier wave, respond respectively all TPC, up is promptly arranged 3 times, 1 down.Also can be once in the hope of average only response, i.e. 1 up after response is average.
In the present invention, the P of UE and network side maintenance
E-baseThe initial value of value is identical, and two sides' adjustment also is consistent.
As embodiments of the invention, carrier subset can have only 1 or carrier subset to have a plurality of and in each subclass the carrier wave number be 1.When carrier subset has only 1, network side only need be PRX of terminal configuration
Des_baseValue, UE receives the unified associating use of the TPC order of all carrier waves, thus a plurality of carrier wave is united and is safeguarded P
E-baseValue is carried out the joint Power control of E-PUCH; When carrier subset has a plurality of and when the carrier wave number was 1 in each subclass, network side need be PRX of each carrier wave configuration of UE
Des_baseValue, the TPC order of each carrier wave of UE is independent uses each carrier wave independent maintenance P
E-baseBe worth, carry out the individual power control of E-PUCH.
In the above-described embodiments, the use of TPC power control commands word is meant the TPC order associating use of each intercarrier in the carrier subset, yet the order of the TPC between each carrier subset is independent the use.
Power after S403:UE controls with power sends upstream data to the base station.
When UE transmitted on a plurality of carrier waves of synchronization, UE is when E-TFC selects should guarantee that the total transmitting power of all carrier waves is no more than up maximum transmission power.Wherein up maximum transmission power can allow the smaller value of up maximum transmission power for the maximum uplink transmission power of UE and system.
As shown in Figure 5, the present invention has also proposed a kind of user equipment (UE) 500 on the other hand, comprising: receiver module 510, power control module 520 and sending module 530.
Wherein, receiver module 510 is used to receive information transmitted by network-side equipment, and information comprises high-level signaling information and E-PUCH channel transmitting power control TPC command word, and wherein high-level signaling information comprises the PRX that UE500 is corresponding
Des_baseValue, P
E-baseMaintenance mode and carrier subset division information; Power control module 520 is used for according to PRX
Des_baseThe P of each carrier wave or each carrier subset is adjusted and safeguarded to value and TPC command word
E-baseValue, P
E-base=PRX
Des_base+ step* ∑ TPC=PRX
Des_base+ P
TPC, according to P
E-baseThe E-PUCH channel is carried out power control, and the transmitted power of E-PUCH channel is P
E-PUCH=P
E-base+ L+ β
e, wherein L is the circuit loss value that measures from beacon physical channel, β
eFor strengthening the normalized gain factor of transformat combination E-TFC; Sending module 530 is used for sending upstream data with the power after the power control to the base station.
Specific embodiment as the said equipment; Receiver module 510 also comprises parsing module 511; Parsing module 511 is used for the TPC command word of the down channel that is carried on the E-PUCH pairing is parsed from signaling, and down channel comprises the E-AGCH channel, and/or the E-HICH channel.
As the specific embodiment of the said equipment, power control module 520 employed PRX
Des_baseValue comprises: the PRX of the current carrier wave of network side high-level signaling configuration
Des_baseValue; The PRX of the current carrier wave place carrier subset of network side high-level signaling configuration
Des_baseValue; The corresponding identical PRX of all carrier subset of network side high-level signaling configuration
Des_baseValue.
As the specific embodiment of the said equipment, when power control module 520 carried out power control, the TPC order is independent between each carrier subset used, and the occupation mode of TPC command word comprises following any one mode:
After UE500 receives the TPC command word, power control is all carried out in the TPC order that obtains on all carrier waves in the carrier subset;
After UE500 receives the TPC command word, the TPC order that all carrier waves in the carrier subset are obtained in a Transmission Time Interval TTI ask average after, only carry out a power control.
The technical scheme that proposes according to the present invention has solved the problem of the uplink power control of multicarrier in the resolution system.The technical scheme that the present invention proposes is indicated the P that confirms each carrier wave through the high-level signaling of network side
E-baseParameter and maintenance mode, user terminal can obtain the P of each carrier wave according to the indication of high-level signaling
E-baseParameter and maintenance mode, thus realize up multi-carrier power control.A plurality of carrier waves are divided into carrier subset and carry out power control administration among the present invention, and carrier subset can only comprise a carrier wave also can comprise a plurality of carrier waves, have solved power control and the P of E-PUCH under the multicarrier flexibly
E-baseThe problem of parameter maintenance.In addition, the technical scheme that the present invention proposes, very little to the change of existing system, can not influence the compatibility of system, and realize simply, efficiently helping the elevator system performance.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (14)
1. the method for a multi-carrier uplink power control is characterized in that, may further comprise the steps:
Network equipment is that user equipment (UE) distributes available carrier wave, and said available carrier wave is divided into one or more carrier subset, and is the initial value PRXdes_base of said UE allocating power Control Parameter Pe-base, the maintenance mode of said Pe-base;
Said network equipment is notified the corresponding PRXdes_base value of said UE, maintenance mode and the carrier subset division information of Pe-base through high-level signaling,
Wherein, said available carrier wave being divided into one or more carrier subset may further comprise the steps:
The criteria for classifying of selected carrier subset, the criteria for classifying of said carrier subset comprises following any one mode or its combination: distribute according to carrier frequency point and divide, divide and divide according to the customer charge size according to carrier wave uplink interference intensity;
Criteria for classifying according to said carrier subset is divided carrier wave,
Wherein, the initial value PRXdes_base for said UE allocating power Control Parameter Pe-base comprises following any one mode or its combination:
Said network equipment is respectively each carrier wave corresponding PRXdes_base value is set according to the uplink interference intensity of each carrier wave;
Said network equipment is respectively each carrier subset corresponding PRXdes_base value is set according to the mean intensity of the uplink interference of each carrier wave in the said carrier subset;
Said network equipment is according to the mean intensity of the uplink interference of all carrier waves, for all carrier waves are provided with identical PRXdes_base value,
Wherein, the maintenance mode of said Pe-base comprises the occupation mode of transmitting power control TPC command word in the said carrier subset.
2. the method for multi-carrier uplink power control as claimed in claim 1 is characterized in that, notifies the mode of said UE to comprise through high-level signaling:
The signaling of the maintenance mode of said Pe-base is for showing signaling or conceal signaling notice;
Said PRXdes_base value is for showing signaling;
Said carrier subset division information is for showing signaling or conceal signaling notice.
3. a network equipment is characterized in that, comprising:
Distribution module, said distribution module are used to user equipment (UE) and distribute available carrier wave, and said available carrier wave is divided into one or more carrier subset;
Configuration module, said configuration module are used to the initial value PRXdes_base of said UE allocating power Control Parameter Pe-base, the maintenance mode of said Pe-base;
Select module, said selection module to be used for mode and the maintenance mode of PE-base of initial value PRXdes_base of criteria for classifying, the allocating power Control Parameter Pe-base of selected carrier subset,
Wherein, the criteria for classifying of said carrier subset comprises following any one mode or its combination:
Distribution is divided, is divided and divide according to the customer charge size according to carrier wave uplink interference intensity according to carrier frequency point;
The initial value PRXdes_base of allocating power Control Parameter Pe-base comprises following any one mode or its combination:
Said network equipment is respectively each carrier wave corresponding PRXdes_base value is set according to the uplink interference intensity of each carrier wave,
Said network equipment is respectively each carrier subset corresponding PRXdes_base value is set according to the mean intensity of the uplink interference of each carrier wave in the said carrier subset,
Said network equipment is according to the mean intensity of the uplink interference of all carrier waves, for all carrier waves are provided with identical PRXdes_base value;
The maintenance mode of said Pe-base comprises the occupation mode of transmitting power control TPC command word in the said carrier subset, and the occupation mode of said TPC command word comprises following any one mode:
After said UE receives said TPC command word, power control is all carried out in the TPC order that obtains on all carrier waves in the carrier subset,
After said UE receives said TPC command word, the TPC order that all carrier waves in the carrier subset are obtained in a Transmission Time Interval TTI ask average after, only carry out a power control.
4. network equipment as claimed in claim 3 is characterized in that said network equipment comprises radio network controller (RNC) or base station,
When said network equipment is RNC, said RNC notifies the corresponding PRXdes_base value of said UE, maintenance mode and the carrier subset division information of Pe-base through high-level signaling;
When said network equipment is the base station, information is sent to said UE in said base station, notifies the corresponding PRXdes_base value of said UE, maintenance mode and the carrier subset division information of Pe-base.
5. the method for a multi-carrier uplink power control is characterized in that, may further comprise the steps:
User equipment (UE) receives information transmitted by network-side equipment; Said information comprises high-level signaling information and E-PUCH channel transmitting power control TPC command word, and wherein said high-level signaling information comprises the corresponding PRXdes_base value of said UE, maintenance mode and the carrier subset division information of Pe-base;
Said UE adjusts and safeguards the Pe-base value of each carrier wave or each carrier subset through said PRXdes_base value and TPC command word; PE-base PRXdes_base+step* ∑ TPC=PRXdes_base+PTPC; According to Pe-base said E-PUCH channel is carried out power control; The transmitted power of said E-PUCH channel is PE-PUCH=Pe-base+L+ β e; Wherein L is the circuit loss value that measures from beacon physical channel, and β e is for strengthening the normalized gain factor of transformat combination E-TFC;
Power after said UE controls with power sends upstream data to the base station.
6. the method for multi-carrier uplink power control as claimed in claim 5 is characterized in that, said TPC command word is carried in the down channel of said E-PUCH pairing, and said down channel comprises the E-AGCH channel, and/or the E-HICH channel.
7. the method for multi-carrier uplink power control as claimed in claim 5 is characterized in that, said PRXdes_base value comprises: the PRXdes_base value of the current carrier wave of network side high-level signaling configuration; The PRXdes_base value of the current carrier wave place carrier subset of network side high-level signaling configuration; The corresponding identical PRXdes_base value of all carrier subset of network side high-level signaling configuration.
8. the method for the multi-carrier uplink power control of stating like claim 7; It is characterized in that; For the UE of scheduling, behind the parameter GAP of scheduling authorization interval greater than the network side configuration that said UE obtains, the Pe-base value of said UE reverts to initial value PRXdes_base.
9. like the method for the described multi-carrier uplink power control of one of claim 5 to 8, it is characterized in that the occupation mode of said TPC command word comprises following any one mode:
After said UE receives said TPC command word, power control is all carried out in the TPC order that obtains on all carrier waves in the carrier subset;
After said UE receives said TPC command word, the TPC order that all carrier waves in the carrier subset are obtained in a Transmission Time Interval TTI ask average after, only carry out a power control.
10. the method for multi-carrier uplink power control as claimed in claim 9; It is characterized in that the power of the upstream data of said UE after said base-station transmitting-power control is the smaller value that maximum uplink transmission power in terminal and network allow up maximum transmission power.
11. a user equipment (UE) is characterized in that, comprising:
Receiver module; Said receiver module is used to receive information transmitted by network-side equipment; Said information comprises high-level signaling information and E-PUCH channel transmitting power control TPC command word, and wherein said high-level signaling information comprises the corresponding PRXdes_base value of said UE, maintenance mode and the carrier subset division information of Pe-base;
Power control module; Said power control module is used for according to the adjustment of said PRXdes_base value and TPC command word and safeguards the Pe-base value of each carrier wave or each carrier subset; Pe-base=PRXdes_base+step* ∑ TPC=PRXdes_base+PTPC; According to Pe-base said E-PUCH channel is carried out power control; The transmitted power of said E-PUCH channel is PE-PUCH=Pe-base+L+ β e, and wherein L is the circuit loss value that measures from beacon physical channel, and β e is for strengthening the normalized gain factor of transformat combination E-TFC;
Sending module, said sending module are used for sending upstream data with the power after the power control to the base station.
12. user equipment (UE) as claimed in claim 11; It is characterized in that; Said receiver module also comprises parsing module; Said parsing module is used for the said TPC command word of the down channel that is carried on said E-PUCH pairing is parsed from signaling, and said down channel comprises the E-AGCH channel, and/or the E-HICH channel.
13. user equipment (UE) as claimed in claim 11 is characterized in that, the employed said PRXdes_base value of said power control module comprises: the PRXdes_base value of the current carrier wave of network side high-level signaling configuration; The PRXdes_base value of the current carrier wave place carrier subset of network side high-level signaling configuration; The corresponding identical PRXdes_base value of all carrier subset of network side high-level signaling configuration.
14. user equipment (UE) as claimed in claim 11 is characterized in that, when said power control module carried out power control, the TPC order is independent between each carrier subset used, and the occupation mode of said TPC command word comprises following any one mode:
After said UE receives said TPC command word, power control is all carried out in the TPC order that obtains on all carrier waves in the carrier subset;
After said UE receives said TPC command word, the TPC order that all carrier waves in the carrier subset are obtained in a Transmission Time Interval TTI ask average after, only carry out a power control.
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| US9380539B2 (en) | 2014-07-01 | 2016-06-28 | Qualcomm Incorporated | Techniques for reducing transmission delays in multi-carrier wireless communications |
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| CN109756966B (en) * | 2012-11-15 | 2023-09-29 | 华为技术有限公司 | Information transmission method, base station and user equipment |
| US11212147B2 (en) * | 2015-10-23 | 2021-12-28 | Huawei Technologies Co., Ltd. | Systems and methods for configuring carriers using overlapping sets of candidate numerologies |
| CN111182638B (en) * | 2016-04-01 | 2023-04-28 | 展讯通信（上海）有限公司 | User equipment, network side equipment and control method of user equipment |
| CN107613553B (en) * | 2016-07-11 | 2019-11-22 | 电信科学技术研究院 | A kind of method and device of uplink power control |
| IL267295B (en) | 2016-12-13 | 2022-08-01 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Method and device for controlling uplink power |
| CN109729577A (en) * | 2017-10-27 | 2019-05-07 | 成都鼎桥通信技术有限公司 | The power control command word indicating means and equipment of asymmetric up-link carrier polymerization |
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