CN101765191B - Power control method and user equipment - Google Patents

Abstract

The invention discloses a power control method and user equipment; the method comprises the following steps: in a sustainable resource indication RDI period, user equipment UE determines closed loop numerical value of an ascending physical channel E-PUCH of an enhanced dedicated channel according to the received transmission power control TPC parameters aiming at the other ascending channels; reference transmitted power of the E-PUCH is obtained according to the closed loop numerical value; the obtained E-PUCH reference transmitted power is corrected according to the road loss adjusted quantity in the UE transmitted power in the RDI period, so as to obtain the E-PUCH transmitted power; by adopting the invention, in the RDI period, the E-PUCH power control effect can be improved, and the system property is promoted.

Description

Poewr control method and subscriber equipment

Technical field

The present invention relates to the communication technology, be specifically related to a kind of Poewr control method and equipment.

Background technology

HSUPA (High Speed Uplink Packet Access; High Speed Uplink Packet inserts) be 3GPP (Third Generation Partnership Project; The 3G (Third Generation) Moblie partnership projects) a kind of up enhanced scheme that proposes strategy such as shares to reach the maximization uplink throughput through code channel resource, power resource.The professional channel architecture of HSUPA comprises two up channel: E-RUCCH (E-DCHRandom Access Uplink Control Channel; E-DCH inserts ascending control channel at random) and E-PUCH (E-DCH Physical Uplink Channel; The E-DCH uplink physical channel); With two down channel: E-AGCH (E-DCH Absolute Grant Channel; The absolute grant channel of E-DCH), two down channels of E-HICH (E-DCH HARQ Indicator Channel, E-DCH HARQ indicating channel).

In the HSUPA system; Use E-UCCH (E-DCH Uplink Control Channel; The E-DCH ascending control channel) carries out the control information transmission; E-DCH (Enhanced Dedicated Channel strengthens dedicated channel) carries out transfer of data, and a plurality of UE share these two channels through time division multiplexing and code division multiplexing.E-DCH can map to one or more physical channels, and its physical channel is E-PUCH (an enhanced uplink physical channel).The transfer of data of HSUPA is divided into scheduled transmission and non-scheduled transmission, and its transfer process is respectively:

(1) scheduled transmission

UE sends dispatch request to the base station, and the base station determines whether to allow UE to send uplink strengthening data according to schedule information.If confirm and can send, then on E-AGCH, notify UE with relevant physical resource and power resource allocation, UE goes up at corresponding physical resource (E-PUCH) and adopts corresponding power to send data subsequently.The base station receives after data carry out demodulating and decoding, and ACK/NACK message is fed back to UE on E-HICH.In the scheduled transmission process; According to service needed; The base station can also be provided with RDI (Resource Duration Indicator, sustainable resource indication) pattern to the terminal through E-AGCH, during RDI; The base station sends business for the resource of terminal distribution a period of time according to E-AGCH, the base stations during E-AGCH that do not redispatch during RDI.

(2) non-scheduled transmission

System has reserved the certain physical resource for UE in advance; And through high-level signaling notice UE; Before each transmission, do not redispatch dispatch request and receive E-AGCH of UE, but on reserved resource direct transmission uplink strengthening data, and on E-HICH, receive feedback message.The physical channel structure of E-PUCH is consistent with scheduled transmission.The E-HICH channel is represented TPC (Transmit Power Control, through-put power control) and SS (Synchronisation Shift, simultaneous bias) control messages to the E-PUCH channel through implicitly selecting different code word.

In the prior art, the E-PUCH method of using traditional closed-loop power control and open loop power control to combine is carried out power and is controlled:

The initial transmission power setting of E-PUCH is based on the open loop power control scheme; The control of power in the transmission course is then used TPC to order to carry out closed-loop power control.During scheduled transmission, TPC order is carried by E-AGCH, and the TPC order is carried by the E-HICH channel during non-scheduled transmission.

The transmitted power of the E-PUCH that the UE end is provided with is calculated according to following formula:

P _E-PUCH＝P _e-base+L+β _e (1)

Wherein, the implication of each parametric representation is following:

P _E-PUCH: the transmitted power of E-PUCH;

P _E-base: the closed loop numerical value of UE and base station maintenance, receive after TPC orders all can increase or reduce the certain numerical value Δ at every turn _E-baseAfter " up " order of receiving TPC, P _E-baseOn the basis of original numerical value, increase Δ _E-base, after " down " order of receiving TPC, P _E-baseOn the basis of original numerical value, reduce Δ _E-baseΔ _E-baseThe size of value is disposed by high level.

$P_{e-\mathrm{base}}={\mathrm{PRX}}_{\mathrm{des}\_\mathrm{base}}+\mathrm{step}*\underset{i}{\mathrm{\Σ}}{\mathrm{TPC}}_i={\mathrm{PRX}}_{\mathrm{des}\_\mathrm{base}}+P_{\mathrm{TPC}}---\left(2\right)$

Wherein, PRX _{Des_base}Be the E-PUCH reference expected received power, by the RRC signaling.Step is a power control granularity Δ _E-base, by high level configuration, TPC _iIt is the closed-loop power control order.

L is the path loss item, is drawn by the beacon function physical channel.When calculating transmitting power, UE will consider the path loss correction selectively, as replenishing of TPC order.

β _eBe E-TFC (the E-Transport Format Combination that selectes; Strengthening the dedicated channel transport format combination) transmission block is big or small, the normalized gain factor of E-PUCH physical resource, modulation system and the HARQ of distribution (HybridAutomatic Repeat Request mixes automatically retransmitting) biasing.

For scheduling and non-scheduled transmission, UE safeguards a closed loop numerical value P _E-base, this value of TPC order that whenever receives on an E-AGCH or the E-HICH all can increase or reduce a Δ _E-baseIf (greater than certain thresholding) do not receive TPC order, P from E-AGCH and E-HICH in a period of time _E-baseShould be set to E-PUCH reference expected received power value; Otherwise, according to TPC order adjustment P from E-AGCH or E-HICH reception _E-baseValue.

In the scheduling E-PUCH transmission course, the TPC that the control of the power of E-AGCH and E-PUCH is carried with reference to the other side mutually adjusts, so during RDI, owing to do not send E-AGCH, the power control of E-PUCH channel can not normally be adjusted.

Summary of the invention

The embodiment of the invention provides a kind of Poewr control method and subscriber equipment, so that during the discontinuous transmission of the E-AGCH of HSUPA, improves the power control effect of E-PUCH better, the elevator system performance.

For this reason, the embodiment of the invention provides following technical scheme:

A kind of Poewr control method comprises:

During sustainable resource indication RDI, user equipment (UE) is according to the definite closed loop numerical value of receiving that strengthens the uplink physical channel E-PUCH of dedicated channel of through-put power control TPC parameter to other up channels;

Obtain the reference transmitted power of E-PUCH according to said closed loop numerical value;

According to the path loss adjustment amount in the UE transmitted power during RDI the reference transmitted power of the E-PUCH of acquisition is revised, obtained the transmitted power of E-PUCH.

Preferably, said method also comprises:

During RDI, the base station is confirmed the closed loop numerical value of E-PUCH equally according to said TPC parameter to other up channels.

Preferably, said reference transmitted power according to said closed loop numerical value acquisition E-PUCH comprises:

Calculate the reference transmitted power that obtains E-PUCH by following formula:

P′ _E-PUCH，n+k＝P′ _e-base，n+k+L _n+k+β _e，1≤k≤K；

Wherein, P ' _{E-PUCH, n+k}Be the reference transmitted power of E-PUCH in the n+k subframe, P ' _{E-base, n+k}Be according to the closed loop numerical value of receiving, L in the n+k subframe to the definite E-PUCH of the TPC parameter of other up channels _N+kPath loss when being the n+k subframe, β _eBe the normalized gain factor, n is last subframe numbers before RDI begins, and K is the lasting sub-frame interval of RDI.

Preferably, said basis path loss adjustment amount in the UE transmitted power during RDI is revised the reference transmitted power of the E-PUCH of acquisition, and the transmitted power that obtains E-PUCH comprises:

Obtain the transmitted power of E-PUCH by following formula:

P _E-PUCH，n+k＝P′ _E-PUCH，n+k-ΔL _n+k，n，1≤k≤K；

Wherein, P _{E-PUCH, n+k}Be the transmitted power of E-PUCH in the n+k subframe, P ' _{E-PUCH, n+k}Be the reference transmitted power of E-PUCH in the n+k subframe, Δ L _{N+k, n}Be the variable quantity of n to path loss between the n+k subframe, n is last subframe numbers before RDI begins, and K is the lasting sub-frame interval of RDI.

Preferably, said method also comprises:

If it is a plurality of that said other up channels have, then set the priority of each said other up channel;

Said UE and base station preferentially select the TPC parameter of the high up channel of priority to confirm the closed loop numerical value of E-PUCH.

A kind of subscriber equipment comprises:

The closed loop data are confirmed the unit, are used for during sustainable resource indication RDI, according to the definite closed loop numerical value of receiving that strengthens the uplink physical channel E-PUCH of dedicated channel of through-put power control TPC parameter to other up channels;

With reference to transmission power calculation unit, be used for obtaining the reference transmitted power of E-PUCH according to said closed loop numerical value;

The power correction unit is used for according to the path loss adjustment amount of UE transmitted power during RDI the reference transmitted power of the E-PUCH of acquisition being revised, and obtains the transmitted power of E-PUCH.

Preferably, the said reference transmitted power of calculating acquisition E-PUCH with reference to transmission power calculation unit by following formula: P ' _{E-PUCH, n+k}=P ' _{E-base, n+k}+ L _N+k+ β _e, 1≤k≤K;

Wherein, P ' _{E-PUCH, n+k}Be the reference transmitted power of E-PUCH in the n+k subframe, P ' _{E-base, n+k}Be according to the closed loop numerical value of receiving, L in the n+k subframe to the definite E-PUCH of the TPC parameter of other up channels _N+kPath loss when being the n+k subframe, β _eBe the normalized gain factor, n is last subframe numbers before RDI begins, and K is the lasting sub-frame interval of RDI.

Preferably, said power correction unit obtains the transmitted power of E-PUCH by following formula:

P _E-PUCH，n+k＝P′ _E-PUCH，n+k-ΔL _n+k，n，1≤k≤K；

Wherein, P _{E-PUCH, n+k}Be the transmitted power of E-PUCH in the n+k subframe, P ' _{E-PUCH, n+k}Be the reference transmitted power of E-PUCH in the n+k subframe, Δ L _{N+k, n}Be the variable quantity of n to path loss between the n+k subframe, n is last subframe numbers before RDI begins, and K is the lasting sub-frame interval of RDI.

Embodiment of the invention Poewr control method and subscriber equipment, during RDI, UE confirms the closed loop numerical value of E-PUCH according to the TPC parameter of receiving to other up channels; Obtain the reference transmitted power of E-PUCH according to said closed loop numerical value; According to the path loss adjustment amount in the UE transmitted power during RDI the reference transmitted power of the E-PUCH of acquisition is revised, obtained the transmitted power of E-PUCH.Thereby can improve the power control effect of E-PUCH better, the elevator system performance so that during the discontinuous transmission of the E-AGCH of HSUPA system.

Description of drawings

Fig. 1 is the flow chart of embodiment of the invention Poewr control method;

Fig. 2 is the structural representation of embodiment of the invention subscriber equipment.

Embodiment

The embodiment of the invention is in the HSUPA system; During the discontinuous transmission of E-AGCH; The situation that the power control of E-PUCH can't normally be adjusted according to the TPC that E-AGCH carries; A kind of Poewr control method is provided, and during RDI, UE confirms the closed loop numerical value of E-PUCH according to the TPC parameter of receiving to other up channels; Obtain the reference transmitted power of E-PUCH according to said closed loop numerical value; According to the path loss adjustment amount in the UE transmitted power during RDI the reference transmitted power of the E-PUCH of acquisition is revised, obtained the transmitted power of E-PUCH, thereby the transmitted power of E-PUCH is controlled effectively.

In order to make those skilled in the art person understand the scheme of the embodiment of the invention better, the embodiment of the invention is done further to specify below in conjunction with accompanying drawing and execution mode.

As shown in Figure 1, be the flow chart of embodiment of the invention Poewr control method, may further comprise the steps:

Step 101, during RDI, UE confirms the closed loop numerical value of E-PUCH according to the TPC parameter of receiving to other up channels.

The TPC parameter to other up channels (such as DPCH) that UE receives during according to the discontinuous transmission of E-AGCH is confirmed the closed loop numerical value of E-PUCH, promptly obtains closed loop numerical value by following formula:

P _e-base(i)＝P _e-base(i-1)+TPC(i-1) (3)

Wherein, P _E-base(i), P _E-base(i-1) be the closed loop numerical value P of a current subframe and a last subframe _E-base, TPC that the last subframe of TPC (i-1) expression is received or the up-to-date TPC that receives.During the discontinuous transmission of E-AGCH, this TPC is the analog value of other channels of reference.

Because the time delay influence of power control; The TPC of actual other channels of effectively response begins back M (M is the power control time delay) subframe from the discontinuous transmission of E-AGCH to begin; The M subframe finishes after arriving the discontinuous transmission completion of E-AGCH, and the maximum subframe lengths of response is the discontinuous transmission cycle of E-AGCH.

Said other up channels can be DPCH, HS-SICH (high-speed shared information channel), non-scheduling E-PUCH etc.

Step 102 is according to the reference transmitted power of said closed loop numerical value acquisition E-PUCH.

When calculating the transmitted power of E-PUCH, the mode of the transmitted power of the E-PUCH that is provided with reference to existing UE end, i.e. formula (1), calculate the reference transmitted power that obtains E-PUCH by following formula:

P′ _E-PUCH，n+k＝P′ _e-base，n+k+L _n+k+β _e，1≤k≤K； (4)

Wherein, n is last subframe numbers before RDI begins, and K is the lasting sub-frame interval of RDI, P ' _{E-PUCH, n+k}Be the reference transmitted power of E-PUCH in the n+k subframe, P ' _{E-base, n+k}Be according to the closed loop numerical value of receiving, L in the n+k subframe to the definite E-PUCH of the TPC parameter of other up channels _N+kPath loss when being the n+k subframe, β _eIt is the normalized gain factor.

Step 103 is revised the reference transmitted power of the E-PUCH of acquisition according to the path loss adjustment amount in the UE transmitted power during RDI, obtains the transmitted power of E-PUCH.

Because the closed loop numerical value P ' of the E-PUCH that the reference transmitted power of the E-PUCH that obtains in step 102 is the TPC according to other up channels to be obtained _{E-base, n+k}Calculate, therefore more accurate in order to make to the power control of E-PUCH, can be according to P ' _{E-base, n+k}The P that obtains with the TPC that carries according to E-AGCH _{E-base, n+k}Difference, the reference transmitted power of E-PUCH is revised.

Other up channels of hypothetical reference are DPCH, the difference of E-PUCH transmitted power and DPCH transmitted power in the following surface analysis prior art.

Can be known that by formula (1) for E-PUCH, its path loss L is a real-time update, what TPC compensated mainly is interference variations.

The transmitted power of DPCH adopts following formula:

$P_{\mathrm{DPCH}}={\mathrm{PRX}}_{\mathrm{DPCH}}+\mathrm{step}\underset{i}{\mathrm{\Σ}}{\mathrm{TPC}}_i+L_0---\left(5\right)$

Wherein, PRX _DPCHBe the DPCH reference expected received power, step is a power control granularity, L ₀The path loss of measuring when being the DPCH initialization is constant.

For DPCH, its path loss L ₀Remain unchanged, what TPC compensated is to disturb and path loss.

It is thus clear that both TPC implications are different, adjustment has certain difference on the power, if calculate the transmitted power of E-PUCH with reference to the TPC of DPCH, need on the basis of the reference transmitted power of the E-PUCH that above-mentioned steps 102 obtains, remove the adjustment amount of L.

As long as base station end is the P that safeguard at maintenance and terminal _E-base(i) consistent getting final product, promptly the TPC of response is consistent with the terminal, does not have the path loss compensation problem.Therefore, a path loss adjustment amount that need remove in the terminal transmitted power during other channels of response TPC just can meet the demands.

Therefore, in embodiments of the present invention, can obtain the transmitted power of E-PUCH by following formula:

P _E-PUCH，n+k＝P′ _E-PUCH，n+k-ΔL _n+k，n，1≤k≤K； (6)

Wherein, P _{E-PUCH, n+k}Be the transmitted power of E-PUCH in the n+k subframe, P ' _{E-PUCH, n+k}Be the reference transmitted power of E-PUCH in the n+k subframe, Δ L _{N+k, n}Be the variable quantity of n to path loss between the n+k subframe, n is last subframe numbers before RDI begins, and K is the lasting sub-frame interval of RDI.

Specify Δ L through analyzing below _{N+K, n}

Can know that according to formula (5) transmitted power of other channels (such as DPCH, HS-SICH or non-scheduling E-PUCH) is on the basis that path loss remains unchanged, and adjusts according to TPC, what TPC compensated is to disturb and path loss.

And, shown in formula (1) and formula (2), on the basis of response TPC, carry out the adjustment of path loss simultaneously, so the just interference of TPC compensation to the E-PUCH transmitted power.

It is thus clear that; If adjust the transmitted power of E-PUCH with reference to the TPC of other channels; The reference power of the E-PUCH that obtains according to formula (4) has not only comprised the variable quantity at the path loss of the TPC compensating during of other channel of response, has also comprised the variable quantity of L during same simultaneously.Therefore need revise the reference power of the E-PUCH that obtains according to formula (4), correction is: Δ L _{N+k, n}=L _N+k-L _n

After RDI finishes; The TPC adjustment that the transmitting power of E-PUCH is carried according to E-AGCH again, need not adjust according to the path loss correction that current circuit loss obtains this moment, but the correction that was increased during the RDI in last time needs to keep; Suppose that promptly current subframe is n+K+m, then transmitting power is: P _{E-PUCH, n+K+m}=P ' _{E-PUCH, n+K+m}-Δ L _{N+K, n}, 1≤k≤K, m are the integer (7) greater than 0

Wherein, P _{E-PUCH, n+K+m}Be the transmitted power of E-PUCH in the n+K+m subframe, P ' _{E-PUCH, n+K+m}Be the reference transmitted power of E-PUCH in the n+K+m subframe, Δ L _{N+K, n}Be the variable quantity of n to path loss between the n+K subframe, n is last subframe numbers before last RDI begins, and K is the lasting sub-frame interval of last RDI.

Need to prove that during RDI, the base station is confirmed the closed loop numerical value of E-PUCH equally according to said TPC parameter to other up channels.

Because base station end also will be safeguarded P _E-baseDispatch processing, and the P of base station and UE requirement maintenance _E-baseBe consistent.Therefore, in embodiments of the present invention, to the P of base station end _E-baseThe TPC that also produces during RDI with other up channels adjusts, and promptly has equally: P _E-base(i)=P _E-base(i-1)+TPC (i-1).Wherein, P _E-base(i), P _E-base(i-1) be the P of a current subframe and a last subframe _E-base, the last subframe of TPC (i-1) expression sends to the TPC at terminal or sends to the TPC at terminal recently.During RDI, this TPC is the analog value of other channels of reference.Because the time delay influence of power control, the TPC of actual other channels of effectively response are to begin back M (M is the power control time delay) subframe from RDI to begin, the M subframe finishes after accomplishing to RDI.Because other channels possibly also be discontinuous configurations, need response above-mentioned during actual effectively TPC, the maximum subframe lengths of response is the RDI cycle.

The UPH that the base station reports according to UE (UE transmission power headroom; The maximum transmission power that UE can use and the ratio of reference value), Pebase, Prot (base station is used for controlling the parameter of area interference), Pc (power that the base station can be sent) the constant power value oneself safeguarded; Calculate PRRI (Abso1ute GrantValue; The power resource relevant information), then PRRI is sent to the terminal through E-AGCH, the terminal is according to following relation: beta+ Δ HARQ＜=PRRI; Confirm the beta of own maximum ability usefulness, the final employable maximal rate of beta decision UE.How concrete base station uses P _E-baseIdentical with prior art, be not described in detail at this.

Need to prove that in the HSUPA system, up can have a plurality of channels, such as having DPCH, HS-SICH, non-scheduling E-PUCH etc. simultaneously.In this case; For the TPC of other up channels of making base station and terminal references consistent; Priority that can be different to these channel settings, such as, setting priority is DPCH＞non-scheduling E-PUCH＞HS-SICH; UE and base station preferentially select the TPC parameter of the high up channel of priority to confirm the closed loop numerical value of E-PUCH, and can only be with reference to a kind of up channel wherein.

Utilize the method for the embodiment of the invention, during RDI, UE can confirm the closed loop numerical value of E-PUCH according to the TPC parameter of receiving to other up channels; Obtain the reference transmitted power of E-PUCH according to said closed loop numerical value; According to the path loss adjustment amount in the UE transmitted power during RDI the reference transmitted power of the E-PUCH of acquisition is revised, obtained the transmitted power of E-PUCH, thereby the transmitted power of E-PUCH is controlled effectively, promoted systematic function.

One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to accomplish through program; Described program can be stored in the computer read/write memory medium; Described storage medium, as: ROM/RAM, magnetic disc, CD etc.

The embodiment of the invention also provides a kind of subscriber equipment, and is as shown in Figure 2, is the structural representation of this subscriber equipment.

This subscriber equipment comprises: the closed loop data confirm unit 201, with reference to transmission power calculation unit 202 and power correction unit 203.Wherein:

The closed loop data are confirmed unit 201, are used for during sustainable resource indication RDI, according to the definite closed loop numerical value of receiving that strengthens the uplink physical channel E-PUCH of dedicated channel of through-put power control TPC parameter to other up channels.

With reference to transmission power calculation unit 202, be used for obtaining the reference transmitted power of E-PUCH according to said closed loop numerical value.Particularly, calculate the reference transmitted power that obtains E-PUCH: P ' by following formula with reference to transmission power calculation unit 202 _{E-PUCH, n+k}=P ' _{E-base, n+k}+ L _N+k+ β _e, 1≤k≤K.Wherein, n is last subframe numbers before RDI begins, and K is the lasting sub-frame interval of RDI, P ' _{E-PUCH, n+k}Be the reference transmitted power of E-PUCH in the n+k subframe, P ' _{E-base, n+k}Be according to the closed loop numerical value of receiving, L in the n+k subframe to the definite E-PUCH of the TPC parameter of other up channels _N+kPath loss when being the n+k subframe, β _eIt is the normalized gain factor.

Power correction unit 203 is used for according to the path loss adjustment amount of UE transmitted power during RDI the reference transmitted power of the E-PUCH of acquisition being revised, and obtains the transmitted power of E-PUCH.Particularly, power correction unit 203 obtains the transmitted power of E-PUCH: P by following formula _{E-PUCH, n+k}=P ' _{E-PUCH, n+k}-Δ L _{N+k, n}, 1≤k≤K; Wherein, P _{E-PUCH, n+k}Be the transmitted power of E-PUCH in the n+k subframe, P ' _{E-PUCH, n+k}Be the reference transmitted power of E-PUCH in the n+k subframe, Δ L _{N+k, n}Be the variable quantity of n to path loss between the n+k subframe, n is last subframe numbers before RDI begins, and K is the lasting sub-frame interval of RDI.

The subscriber equipment of the embodiment of the invention during RDI, is confirmed the closed loop numerical value of E-PUCH according to the TPC parameter of receiving to other up channels; Obtain the reference transmitted power of E-PUCH according to said closed loop numerical value; According to the path loss adjustment amount in the transmitted power during RDI the reference transmitted power of the E-PUCH of acquisition is revised, obtained the transmitted power of E-PUCH, thereby the transmitted power of E-PUCH is controlled effectively, promoted systematic function.

More than the embodiment of the invention has been carried out detailed introduction, used embodiment among this paper the present invention set forth, the explanation of above embodiment just is used for help understanding method and apparatus of the present invention; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.

Claims (8)

1. a Poewr control method is characterized in that, comprising:

During sustainable resource indication RDI, user equipment (UE) is according to the definite closed loop numerical value of receiving that strengthens the uplink physical channel E-PUCH of dedicated channel of through-put power control TPC parameter to other up channels;

Obtain the reference transmitted power of E-PUCH according to said closed loop numerical value;

According to the path loss adjustment amount in the UE transmitted power during RDI the reference transmitted power of the E-PUCH of acquisition is revised, obtained the transmitted power of E-PUCH.

2. method according to claim 1 is characterized in that, said method also comprises:

During RDI, the base station is confirmed the closed loop numerical value of said E-PUCH equally according to said TPC parameter to other up channels.

3. method according to claim 1 and 2 is characterized in that, said reference transmitted power according to said closed loop numerical value acquisition E-PUCH comprises:

Calculate the reference transmitted power that obtains E-PUCH by following formula:

P′ _E-PUCH，n+k＝P′ _e-base，n+k+L _n+k+β _e，1≤k≤K；

Wherein, P ' _{E-PUCH, n+k}Be the reference transmitted power of E-PUCH in the n+k subframe, P ' _{E-base, n+k}Be according to the closed loop numerical value of receiving, L in the n+k subframe to the definite E-PUCH of the TPC parameter of other up channels _N+kPath loss when being the n+k subframe, β _eBe the normalized gain factor, n is last subframe numbers before RDI begins, and K is the lasting sub-frame interval of RDI.

4. method according to claim 3 is characterized in that, said basis path loss adjustment amount in the UE transmitted power during RDI is revised the reference transmitted power of the E-PUCH of acquisition, and the transmitted power that obtains E-PUCH comprises:

Obtain the transmitted power of E-PUCH by following formula:

P _E-PUCH，n+k＝P′ _E-PUCH，n+k-ΔL _n+k，n，1≤k≤K；

Wherein, P _{E-PUCH, n+k}Be the transmitted power of E-PUCH in the n+k subframe, P ' _{E-PUCH, n+k}Be the reference transmitted power of E-PUCH in the n+k subframe, Δ L _{N+k, n}Be the variable quantity of n to path loss between the n+k subframe, n is last subframe numbers before RDI begins, and K is the lasting sub-frame interval of RDI.

5. method according to claim 1 and 2 is characterized in that, said method also comprises:

If it is a plurality of that said other up channels have, then set the priority of each said other up channel;

Said UE and base station preferentially select the TPC parameter of the high up channel of priority to confirm the closed loop numerical value of E-PUCH.

6. a subscriber equipment is characterized in that, comprising:

The closed loop data are confirmed the unit, are used for during sustainable resource indication RDI, according to the definite closed loop numerical value of receiving that strengthens the uplink physical channel E-PUCH of dedicated channel of through-put power control TPC parameter to other up channels;

With reference to transmission power calculation unit, be used for obtaining the reference transmitted power of E-PUCH according to said closed loop numerical value;

The power correction unit is used for according to the path loss adjustment amount of UE transmitted power during RDI the reference transmitted power of the E-PUCH of acquisition being revised, and obtains the transmitted power of E-PUCH.

7. subscriber equipment according to claim 6 is characterized in that, the said reference transmitted power of calculating acquisition E-PUCH with reference to transmission power calculation unit by following formula:

P′ _E-PUCH，n+k＝P′ _e-base，n+k+L _n+k+β _e，1≤k≤K；

Wherein, P ' _{E-PUCH, n+k}Be the reference transmitted power of E-PUCH in the n+k subframe, P ' _{E-base, n+k}Be according to the closed loop numerical value of receiving, L in the n+k subframe to the definite E-PUCH of the TPC parameter of other up channels _N+kPath loss when being the n+k subframe, β _eBe the normalized gain factor, n is last subframe numbers before RDI begins, and K is the lasting sub-frame interval of RDI.

8. subscriber equipment according to claim 6 is characterized in that, said power correction unit obtains the transmitted power of E-PUCH: P by following formula _{E-PUCH, n+k}=P ' _{E-PUCH, n+k}-Δ L _N+kn, 1≤k≤K;

Wherein, P _{E-PUCH, n+k}Be the transmitted power of E-PUCH in the n+k subframe, P ' _{E-PUCH, n+k}Be the reference transmitted power of E-PUCH in the n+k subframe, Δ L _{N+k, n}Be the variable quantity of n to path loss between the n+k subframe, n is last subframe numbers before RDI begins, and K is the lasting sub-frame interval of RDI.

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