CN101998604A - Method and device for controlling upstream auxiliary carrier wave power under multiple carrier wave mode - Google Patents
Method and device for controlling upstream auxiliary carrier wave power under multiple carrier wave mode Download PDFInfo
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Abstract
The embodiment of the invention discloses a method for controlling the upstream auxiliary carrier wave power under a multiple carrier wave mode. In the method, a dedicated physical control channel (DPCCH) of the upstream auxiliary carrier wave is emitted when the upstream auxiliary carrier wave is activated, and the emitting power of the DPCCH of the upstream auxiliary carrier wave is controlled according to the maximum emitting power of user equipment (UE) and the emitting power of the upstream main carrier wave. The embodiment of the invention also provides a device for controlling the power under the multiple carrier wave mode. The method or the device for controlling the upstream auxiliary carrier wave power under the multiple carrier wave mode provided by the embodiment of the invention fully utilizes the emitting power of the UE and enhance the throughput of the system on the basis of guaranteeing the available power of the upstream main carrier wave.
Description
Technical field
The present invention relates to communication technical field, relate in particular to method, the device under the multi-carrier mode upstream auxiliary carriers power controlled.
Background technology
Along with the develop rapidly of the communication technology, (Wideband Code Division MultipleAccess WCDMA) as one of mainstream technology of 3-G (Generation Three mobile communication system), has obtained extensive studies and application to Wideband Code Division Multiple Access (WCDMA) in the world.At present WCDMA has had the 99th version (Release 99, R99), (Release 4, R4), (Release 5, R5), (Release 6, R6), (Release 7, R7) wait version for the 7th version for the 6th version for the 5th version for the 4th version.In order to improve message transmission rate, meet the different needs, WCDMA in R5, introduced the high speed downlink packet access (High Speed Downlink PacketAccess, HSDPA) technology makes down link can realize the speed up to 14.4Mbit/s; (High Speed Uplink Packet Access, HSUPA) technology makes up link can realize the speed up to 5.76Mbit/s to have introduced the high speed uplink packet access in WCDMA R6.Wherein, HSDPA and HSUPA are referred to as HSPA.In order further to improve the message transmission rate of HSPA system, in WCDMA R8 version, introduced DC-HSDPA (Dual-Cell HSDPA, double small district HSDPA) technology, that is: adopt descending two carrier waves, the uplink single-carrier configuration, UE can receive the data of high speed descending sharing channel (HS-DSCH, the High Speed Downlink Shared Channel) transmission of two descending carriers simultaneously; Wherein the descending carrier that is associated with up-link carrier is called main carrier, and the another one carrier wave is called auxilliary carrier wave.
Can continue evolution to the HSPA multi-transceiver technology in the R9 version of WCDMA system, introduce DC-HSUPA (Dual-CeU HSUPA, double small district HSUPA) technology, that is: adopt up two carrier waves, UE can use the enhancing dedicated channel (E-DCH, Enhanced DedicatedChannel) of two up-link carriers to send upstream data; Wherein, be called up main carrier with the corresponding up-link carrier of downlink main carrier to carry, the another one carrier wave is a upstream auxiliary carriers.The frequency of up two carrier waves is adjacent, promptly adopts adjacent 5MHz bandwidth, and network side can be controlled the activation and the deexcitation of two carrier modes.
In the communication system that adopts the DC-HSUPA technology, the uplink transmission power resource is to share between each carrier wave.Therefore a carrier occupancy power must cause the spendable power of another one carrier wave to reduce.Because the up-link wireless link monitoring is based on the link-quality of main carrier, and the proprietary physical control channel (HS-DPCCH of HS-DSCH, Dedicated Physical Control Channel for HS-DSCH) in up main carrier transmission, therefore this channel bearing uplink feedback information guarantees that the quality of up main carrier is very necessary.In order to guarantee the power of up main carrier, proprietary physical control channel (DedicatedPhysical Control Channel to upstream auxiliary carriers, DPCCH) maximum transmission power limits, by fixing threshold value of high level configuration, make upstream auxiliary carriers under whole state of activation, the power of DPCCH can not surpass this threshold value.Under whole state of activation, restriction to the DPCCH maximum transmission power of upstream auxiliary carriers, though can guarantee the spendable power of up main carrier to a certain extent, but can the interior ring and the exterior ring power control of upstream auxiliary carriers be impacted, also can cause harmful effect simultaneously, cause the decline of throughput of system the business transmission of upstream auxiliary carriers.
Summary of the invention
The embodiment of the invention provides the method for upstream auxiliary carriers power control under a kind of multi-carrier mode, and this method comprises:
When activating upstream auxiliary carriers, launch the proprietary used for physical control channel DPCCH of described upstream auxiliary carriers; According to the maximum transmission power of user equipment (UE) and the transmitting power of up main carrier the transmitting power of the DPCCH of described upstream auxiliary carriers is controlled.
The embodiment of the invention also provides the device of power control under a kind of multi-carrier mode, and this device comprises:
Transmitter unit is used for launching the proprietary used for physical control channel DPCCH of described upstream auxiliary carriers when activating upstream auxiliary carriers; Power control unit is used for according to the maximum transmission power of user equipment (UE) and the transmitting power of up main carrier the transmitting power of the DPCCH of this upstream auxiliary carriers being controlled.
In the method or device of the control of upstream auxiliary carriers power, the transmitting power of up main carrier is a real-time change under the multi-carrier mode that the embodiment of the invention provides, and therefore, the maximum transmission power that upstream auxiliary carriers allows also can real-time change.Like this, just can on the basis that guarantees up main carrier available horsepower, make full use of the transmitting power of UE, improve the throughput of system.
Description of drawings
Fig. 1 is the schematic flow sheet of upstream auxiliary carriers Poewr control method under the multi-carrier mode according to an embodiment of the invention;
Fig. 2 is the schematic flow sheet of upstream auxiliary carriers Poewr control method under the carrier mode in accordance with another embodiment of the present invention;
Fig. 3 is the structural representation of upstream auxiliary carriers output control device under the multi-carrier mode in accordance with another embodiment of the present invention;
Fig. 4 is the structural representation of upstream auxiliary carriers output control device under the multi-carrier mode in accordance with another embodiment of the present invention.
Embodiment
Be described in further detail below in conjunction with the technical scheme of the drawings and the specific embodiments each embodiment of the present invention.
Fig. 1 is the method for upstream auxiliary carriers power control under the multi-carrier mode of one embodiment of the invention.As shown in Figure 1, this method can comprise:
Further, the transmitting power of the DPCCH of upstream auxiliary carriers is controlled and can be comprised: the DPCCH of control upstream auxiliary carriers is no more than the maximum transmission power that the DPCCH of upstream auxiliary carriers allows.
In the present embodiment, the transmitting power of up main carrier is a real-time change, and therefore, the maximum transmission power that the DPCCH of upstream auxiliary carriers allows also can real-time change.Like this, just can on the basis that guarantees up main carrier available horsepower, make full use of the transmitting power of UE, improve the throughput of system.
In the other embodiments of the invention, the maximum transmission power P that the DPCCH of upstream auxiliary carriers allows
Max, tx2Can be provided with according to formula (1):
P
Max, tx2=P
Max, tx-P
Tx, 1Formula (1)
Wherein, P
Tx, 1The transmitting power of up main carrier;
P
Max, tx=min{Maximum allowed UL TX Power, P
Max, Maximum allowed ULTX Power is the maximum transmission power (can be disposed by network side) that UE allows, P
MaxBe the peak power output (ability by UE determines usually) by UE, P
Max, txBe value less among both, i.e. P
Max, txMaximum transmission power for UE.
In the other embodiments of the invention, the maximum transmission power P that the DPCCH of upstream auxiliary carriers allows
Max, tx2Can also be provided with according to formula (2):
P
Max, tx2=P
Max, tx-α P
Tx, 1Formula (2)
Wherein, P
Max, txWith P
Tx, 1Identical with in the formula (1); α is a percentage, and its value can be 0<α≤1.Formula (2) expression, the maximum transmission power P that allows for the DPCCH that satisfies upstream auxiliary carriers
Max, tx2, main carrier can carry out power compression, and to satisfy the requirement of UE maximum transmission power, the ratio that main carrier power can compress is 1-α.For example, when α=1, the maximum transmission power that the DPCCH of upstream auxiliary carriers allows is that the maximum transmission power of UE is removed the dump power after the transmitting power of up main carrier; When 0<α<1, the maximum transmission power that the DPCCH of upstream auxiliary carriers allows is after the transmitting power of up main carrier is compressed 1-α, the dump power of UE.
In the other embodiments of the invention, before this upstream auxiliary carriers is finished uplink synchronous or before leading being sent completely of the DPCCH power of upstream auxiliary carriers control or before uplink data channels begins to send, the maximum transmission power P that the DPCCH of upstream auxiliary carriers allows
Max, tx2Can also be provided with according to formula (3):
P
Max, tx2=P
Max, tx-P
Tx, 1-UE_Sec_Tx_Power_Backoff formula (3)
Wherein, UE Sec_Tx_Power_Backoff is and the side-play amount of UE dump power, can be disposed or value of predefine by network side.Like this, can guarantee the certain power allowance.
In the other embodiments of the invention, before this upstream auxiliary carriers is finished uplink synchronous or before leading being sent completely of the DPCCH power of upstream auxiliary carriers control or before uplink data channels begins to send, the maximum transmission power P that the DPCCH of upstream auxiliary carriers allows
Max, tx2Can also be provided with according to formula (4):
P
Max, tx2=P
Max, tx-α P
Tx, 1-UE_Sec_Tx_Power_Backoff formula (4)
Those skilled in the art as can be known, when activating a upstream auxiliary carriers, this upstream auxiliary carriers has the process of a uplink synchronous.Before this upstream auxiliary carriers was finished uplink synchronous, the base station can be controlled UE and carry out the constantly soaring of power according to certain power control command pattern, up to obtaining uplink synchronous.In the uplink synchronous process, when up begin to send after, the DPCCH power that also can send the upstream auxiliary carriers of some radio frames before sending data channel is controlled leading, after leading being sent completely of the DPCCH of this upstream auxiliary carriers power control, upstream auxiliary carriers just can send data channel, begins to have carried out professional transmission.
Therefore, another embodiment of the present invention also provides upstream auxiliary carriers Poewr control method under a kind of multi-carrier mode.As shown in Figure 2, this method can comprise:
Wherein, the maximum transmission power of the DPCCH of this upstream auxiliary carriers permission can be determined according to the transmitting power of up main carrier and the maximum transmission power of UE.Concrete, can determine the maximum transmission power that the DPCCH of this upstream auxiliary carriers allows according to formula (1) or formula (2) or formula (3) or formula (4).
Step 203, after this upstream auxiliary carriers is finished uplink synchronous or the DPCCH power of upstream auxiliary carriers control is leading be sent completely after or after uplink data channels begins to send, according to the maximum transmission power of UE the transmitting power of up-link carrier is controlled.
In step 203, after upstream auxiliary carriers is finished uplink synchronous or after uplink data channels begins to send, perhaps after leading being sent completely of the DPCCH power of upstream auxiliary carriers control, maximum transmission power to the DPCCH of upstream auxiliary carriers limits no longer separately, can guarantee that by the method for power compression the maximum transmission power of the up-link carrier of UE is P
Max, txGet final product.Wherein, the power compression method is those skilled in the art's a common practise, does not repeat them here.
It will be appreciated by those skilled in the art that, the method that provides by present embodiment, not only can guarantee to carry out in the process of uplink synchronous or the DPCCH power of upstream auxiliary carriers is controlled the available horsepower of up main carrier in the leading process of transmitting in upstream auxiliary carriers, can also in the process that sends uplink data channels, the transmitting power of UE be fully used, improve the throughput of system.
It will be understood by those skilled in the art that according to above embodiment, can also expand to the up more situation of multicarrier that has.When the upstream auxiliary carriers that activates has when a plurality of, all activated upstream auxiliary carriers is before uplink synchronous is finished or before leading being sent completely of the DPCCH power of upstream auxiliary carriers control or before uplink data channels begins to send, and the maximum transmission power sum of permission can be provided with according to formula (1) any one to the formula (4).Such as, the upstream auxiliary carriers of each activation is before uplink synchronous is finished or before leading being sent completely of the DPCCH power of upstream auxiliary carriers control or before uplink data channels begins to send, and the maximum transmission power of permission is the number of the maximum transmission power that allows of all activated upstream auxiliary carriers divided by the upstream auxiliary carriers that activates.
One of ordinary skill in the art will appreciate that, realize all or part of step among the method embodiment of the control of power under the above-mentioned multi-carrier mode, be to instruct relevant hardware to finish by computer program code, described program code can be stored in a computer read/write memory medium or the computer program, when this program is carried out by a computer unit, can carry out the step that comprises as above-mentioned method embodiment.Wherein, described storage medium or calculating and program product can for magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Fig. 3 is the structural representation of upstream auxiliary carriers output control device under the multi-carrier mode in accordance with another embodiment of the present invention.As shown in Figure 3, this upstream auxiliary carriers output control device 30 can comprise: transmitter unit 301 and power control unit 302.
This transmitter unit 301 can be used for launching the DPCCH of this upstream auxiliary carriers when activating upstream auxiliary carriers.
This power control unit 302 can be used for according to the transmitting power of the maximum transmission power of UE and up main carrier the transmitting power of the DPCCH of this upstream auxiliary carriers being controlled.
Further, this power control unit 302 DPCCH of being used to control upstream auxiliary carriers is no more than the maximum transmission power that the DPCCH of upstream auxiliary carriers allows.
In the output control device 30 that present embodiment provides, the transmitting power of up main carrier is a real-time change, and therefore, the maximum transmission power that the DPCCH of upstream auxiliary carriers allows also can real-time change.Like this, just can on the basis that guarantees up main carrier available horsepower, make full use of the transmitting power of UE, improve the throughput of system.
In other embodiments, the maximum transmission power that the DPCCH of upstream auxiliary carriers allows can be provided with according to any one to the formula (4) of formula (1) among the method embodiment, does not repeat them here.
Fig. 4 is the structural representation of upstream auxiliary carriers output control device under the multi-carrier mode in accordance with another embodiment of the present invention.As shown in Figure 4, this upstream auxiliary carriers output control device 40 can comprise: transmitter unit 401 and power control unit 402.
This transmitter unit 401 is used for launching the DPCCH of this upstream auxiliary carriers when activating upstream auxiliary carriers.
This power control unit 402 be used for before this upstream auxiliary carriers is finished uplink synchronous or leading being sent completely of the DPCCH power of upstream auxiliary carriers control before or before uplink data channels began to send, the transmitting power of controlling the DPCCH of this upstream auxiliary carriers was no more than the maximum transmission power that the DPCCH of this upstream auxiliary carriers allows; And, this power control unit 402 can also be used for after this upstream auxiliary carriers is finished uplink synchronous or leading being sent completely of the DPCCH power of upstream auxiliary carriers control after or uplink data channels begin according to the maximum transmission power of UE the transmitting power of up-link carrier to be controlled after the transmission.
Wherein, the maximum transmission power that allows of the DPCCH of this upstream auxiliary carriers can be determined according to formula (1) or formula (2) or formula (3) or formula (4).
This power control unit 402 is controlled and can not repeated them here referring to the associated description among the method embodiment shown in Figure 2 the transmitting power of this up-link carrier according to the maximum transmission power of UE.
It will be appreciated by those skilled in the art that, the output control device 40 that provides by present embodiment, not only can guarantee to carry out in the process of uplink synchronous or the DPCCH power of upstream auxiliary carriers is controlled the available horsepower of up main carrier in the leading process of transmitting in upstream auxiliary carriers, can also in the process that sends uplink data channels, the transmitting power of UE be fully used, improve the throughput of system.
One of ordinary skill in the art will appreciate that this upstream auxiliary carriers output control device 20 can be a physical location or logic module of UE.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit.Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (12)
1. the method for upstream auxiliary carriers power control under the multi-carrier mode is characterized in that, comprising:
When activating upstream auxiliary carriers, launch the proprietary used for physical control channel DPCCH of described upstream auxiliary carriers;
According to the maximum transmission power of user equipment (UE) and the transmitting power of up main carrier the transmitting power of the DPCCH of described upstream auxiliary carriers is controlled.
2. method according to claim 1 is characterized in that, the transmitting power of described DPCCH to upstream auxiliary carriers is controlled and comprised: the DPCCH that controls described upstream auxiliary carriers is no more than the maximum transmission power that the DPCCH of described upstream auxiliary carriers allows.
3. method according to claim 2 is characterized in that, the maximum transmission power P that the DPCCH of described upstream auxiliary carriers allows
Max, tx2For:
P
Max, tx2=P
Max, tx-P
Tx, 1Perhaps
P
max,tx2=P
max,tx-αP
tx,1;
Wherein, P
Tx, 1The transmitting power of described up main carrier; P
Max, txBe the maximum transmission power of described UE, and P
Max, tx=min{Maximum allowed UL TX Power, P
Max, wherein, Maximum allowedUL TX Power is the maximum transmission power that described UE allows, P
MaxPeak power output for described UE; 0<α≤1.
4. method according to claim 2 is characterized in that, the maximum transmission power P that the DPCCH of described upstream auxiliary carriers allows
Max, tx2For:
P
Max, tx2=P
Max, tx-P
Tx, 1-UE_Sec_Tx_Power_Backoff; Perhaps
P
max,tx2=P
max,tx-αP
tx,1-UE_Sec_Tx_Power_Backoff;
Wherein, P
Tx, 1Transmitting power for described up main carrier; P
Max, txBe the maximum transmission power of described UE, and P
Max, tx=min{Maximum allowed UL TX Power, P
Max, wherein, Maximum allowedUL TX Power is the maximum transmission power that described UE allows, P
MaxPeak power output for described UE; UE_Sec_Tx_Power_Backoff is a power offset; 0<α≤1.
5. according to any described method of claim 2-4, it is characterized in that, according to the transmitting power of the maximum transmission power of user equipment (UE) and up main carrier the transmitting power of the DPCCH of described upstream auxiliary carriers controlled and comprised:
Before described upstream auxiliary carriers is finished uplink synchronous or before leading being sent completely of the DPCCH power of described upstream auxiliary carriers control or before uplink data channels begins to send, the transmitting power of controlling the DPCCH of described upstream auxiliary carriers is no more than the maximum transmission power that the DPCCH of described upstream auxiliary carriers allows.
6. method according to claim 5 is characterized in that, also comprises:
After described upstream auxiliary carriers is finished uplink synchronous or the DPCCH power of described upstream auxiliary carriers control is leading be sent completely after or after uplink data channels begins to send, according to the maximum transmission power of described UE the transmitting power of up-link carrier is controlled.
7. the device of upstream auxiliary carriers power control under the multi-carrier mode is characterized in that, comprising:
Transmitter unit is used for launching the proprietary used for physical control channel DPCCH of described upstream auxiliary carriers when activating upstream auxiliary carriers;
Power control unit is used for according to the maximum transmission power of user equipment (UE) and the transmitting power of up main carrier the transmitting power of the DPCCH of this upstream auxiliary carriers being controlled.
8. device according to claim 7 is characterized in that,
The DPCCH that described power control unit 302 is further used for controlling upstream auxiliary carriers is no more than the maximum transmission power that the DPCCH of upstream auxiliary carriers allows.
9. device according to claim 8 is characterized in that, the maximum transmission power P that the DPCCH of described upstream auxiliary carriers allows
Max, tx2For:
P
Max, tx2=P
Max, tx-P
Tx, 1Perhaps
P
max,tx2=P
max,tx-αP
tx,1;
Wherein, P
Tx, 1The transmitting power of described up main carrier; P
Max, txBe the maximum transmission power of described UE, and P
Max, tx=min{Maximum allowed UL TX Power, P
Max, wherein, Maximum allowedUL TX Power is the maximum transmission power that described UE allows, P
MaxPeak power output for described UE; 0<α≤1.
10. device according to claim 8 is characterized in that, the maximum transmission power P that the DPCCH of described upstream auxiliary carriers allows
Max, tx2For:
P
Max, tx2=P
Max, tx-P
Tx, 1-UE_Sec_Tx_Power_Backoff; Perhaps
P
max,tx2=P
max,tx-αP
tx,1-UE_Sec_Tx_Power_Backoff;
Wherein, P
Tx, 1Transmitting power for described up main carrier; P
Max, txBe the maximum transmission power of described UE, and P
Max, tx=min{Maximum allowed UL TX Power, P
Max, wherein, Maximumallowed UL TX Power is the maximum transmission power that described UE allows, P
MaxPeak power output for described UE; UE_Sec_Tx_Power_Backoff is a power offset; 0<α≤1.
11. any according to Claim 8-10 described device is characterized in that,
Described power control unit, be further used for before described upstream auxiliary carriers is finished uplink synchronous or leading being sent completely of the DPCCH power of described upstream auxiliary carriers control before or before uplink data channels began to send, the transmitting power of controlling the DPCCH of described upstream auxiliary carriers was no more than the maximum transmission power that the DPCCH of described upstream auxiliary carriers allows.
12. according to any described device of claim 11, it is characterized in that,
Described power control unit, be further used for after described upstream auxiliary carriers is finished uplink synchronous or leading being sent completely of the DPCCH power of described upstream auxiliary carriers control after or after uplink data channels begins to send, according to the maximum transmission power of described UE the transmitting power of up-link carrier is controlled.
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WO2013026343A1 (en) * | 2011-08-22 | 2013-02-28 | 华为技术有限公司 | Secondary carry activation method, terminal and base station |
WO2013029552A1 (en) * | 2011-08-30 | 2013-03-07 | 华为技术有限公司 | Power control method, activation management method, user equipment, and base station |
WO2013040954A1 (en) * | 2011-09-23 | 2013-03-28 | 电信科学技术研究院 | Uplink power control method and device |
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US7286609B2 (en) * | 2003-08-08 | 2007-10-23 | Intel Corporation | Adaptive multicarrier wireless communication system, apparatus and associated methods |
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CN102752838A (en) * | 2011-04-22 | 2012-10-24 | 华为技术有限公司 | Extended carrier power control method and user equipment |
WO2013026343A1 (en) * | 2011-08-22 | 2013-02-28 | 华为技术有限公司 | Secondary carry activation method, terminal and base station |
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WO2013029552A1 (en) * | 2011-08-30 | 2013-03-07 | 华为技术有限公司 | Power control method, activation management method, user equipment, and base station |
US11438845B2 (en) | 2011-08-30 | 2022-09-06 | Huawei Technologies Co., Ltd. | Power control method, activation management method, user equipment, and base station |
WO2013040954A1 (en) * | 2011-09-23 | 2013-03-28 | 电信科学技术研究院 | Uplink power control method and device |
CN106488544A (en) * | 2012-03-23 | 2017-03-08 | 华为技术有限公司 | Ascending power control method, network node and system |
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