CN101998604B - 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 PDF

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CN101998604B
CN101998604B CN 200910109358 CN200910109358A CN101998604B CN 101998604 B CN101998604 B CN 101998604B CN 200910109358 CN200910109358 CN 200910109358 CN 200910109358 A CN200910109358 A CN 200910109358A CN 101998604 B CN101998604 B CN 101998604B
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uplink
power
secondary carrier
carrier
tx
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CN101998604A (en
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张屹
马雪利
王宗杰
贺传峰
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华为技术有限公司
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Abstract

本发明实施例公开了多载波模式下上行辅载波功率控制的方法。 Example discloses a method for multi-carrier mode, the uplink power control of the secondary carrier according to the present invention. 该方法中,当激活上行辅载波时,发射所述上行辅载波的专有物理控制信道DPCCH;并根据用户设备UE的最大发射功率和上行主载波的发射功率对所述上行辅载波的DPCCH的发射功率进行控制。 In this method, when the uplink activated secondary carrier, the secondary carrier transmit the uplink dedicated physical control channel DPCCH; and The maximum transmit power and the uplink user equipment UE primary carrier transmit power of the uplink DPCCH of the secondary carrier transmission power control. 本发明实施例还提供了一种多载波模式下功率控制的装置。 Embodiments of the invention also provides a device under a multi-carrier power control mode. 采用本发明实施例提供的多载波模式下上行辅载波功率控制的方法或装置,可以在保证上行主载波可用功率的基础上,充分利用UE的发射功率,提高系统的吞吐量。 Method or apparatus of an uplink multi-carrier mode according to carrier power control provided by the secondary embodiment of the present invention, it is possible to ensure the uplink based on the primary carrier power available, full use of the UE transmit power, improve the system throughput.

Description

多载波模式下上行辅载波功率控制方法、装置 Secondary carrier uplink power control method, the multi-carrier mode means

技术领域 FIELD

[0001] 本发明涉及通信技术领域,尤其涉及多载波模式下对上行辅载波功率控制的方 [0001] The present invention relates to communications technologies, and in particular relates to a multi-carrier mode to the uplink power control of the secondary side of the carrier

法、装置。 Method, apparatus.

背景技术 Background technique

[0002] 随着通信技术的飞速发展,宽带码分多址(Wideband Code DivisionMultipleAccess, WCDMA)作为第三代移动通信系统的主流技术之一,在全球范围内得到了广泛的研究和应用。 [0002] With the rapid development of communication technology, one of the third generation mobile communication system mainstream technology WCDMA (Wideband Code DivisionMultipleAccess, WCDMA), has been widely studied and applied on a global scale. 目前WCDMA已经有第99版本(Release 99,R99)、第4版本(Release Currently has 99 WCDMA version (Release 99, R99), the fourth version (Release

4, R4)、第5 版本(Release 5, R5)、第6 版本(Release 6, R6)、第7 版本(Release 7, R7)等版本。 4, R4), the first version 5 (Release 5, R5), the first version 6 (Release 6, R6), a seventh version (Release 7, R7) versions. 为了提高数据传输速率,满足不同的需求,WCDMA在R5中引入了高速下行分组接入(High Speed Downlink PacketAccess, HSDPA)技术,使得下行链路能够实现高达 To improve the data transmission rate, to meet different needs, WCDMA introduces a High Speed ​​Downlink Packet Access in R5 (High Speed ​​Downlink PacketAccess, HSDPA) technology, so that the downlink can be achieved up to

14.4Mbit/s的速度;在WCDMA R6中引入了高速上行分组接入(High Speed Uplink PacketAccess, HSUPA)技术,使得上行链路能够实现高达5.76Mbit/s的速度。 14.4Mbit / s speed; HSUPA is introduced in the WCDMA R6 (High Speed ​​Uplink PacketAccess, HSUPA) technology, as high as possible so that the uplink 5.76Mbit / s speed. 其中,HSDPA和HSUPA统称为HSPA。 Which, HSDPA and HSUPA collectively referred to as HSPA. 为了进一步提高HSPA系统的数据传输速率,在WCDMA R8版本中引入了DC-HSDPA(Dual-Cell HSDPA,双小区HSDPA)技术,即:采用下行两载波,上行单载波配置,UE可以同时接收两个下行载波的高速下行共享信道(HS-DSCH,High Speed DownlinkShared Channel)发送的数据;其中与上行载波相关联的下行载波称为主载波,另外一个载波称为辅载波。 In order to further improve the data transmission rate of the HSPA system, the WCDMA R8 introduced version of DC-HSDPA (Dual-Cell HSDPA, dual cell HSDPA) technology, namely: using the two downlink carriers, the uplink single carrier configuration, the UE can simultaneously receive two downlink carrier high speed downlink shared channel (HS-DSCH, High Speed ​​DownlinkShared channel) data to be transmitted; wherein the uplink carrier and a downlink carrier associated with the called primary carrier, another carrier is called secondary carrier.

[0003] WCDMA系统的R9版本中会对HSPA多载波技术继续演进,弓I入DC-HSUPA (Dual-CelIHSUPA,双小区HSUPA)技术,即:采用上行两载波,UE可以使用两个上行载波的增强专用信道(E-DCH, Enhanced DedicatedChannel)发送上行数据;其中,与下行主载波相对应的上行载波称为上行主载波,另外一个载波为上行辅载波。 [0003] R9 version of the WCDMA system in a multi-carrier HSPA technology will continue to evolve, I bow into DC-HSUPA (Dual-CelIHSUPA, bis-cell HSUPA) technology, namely: the use of two uplink carriers, the UE can use two uplink carriers enhanced dedicated channel (E-DCH, enhanced DedicatedChannel) to send uplink data; wherein the primary downlink carrier corresponding to the uplink carrier is called an uplink primary carrier, another carrier is an uplink secondary carrier. 上行两个载波的频率是相邻的,即采用相邻的5MHz带宽,网络侧可以控制双载波模式的激活和去激活。 Frequency two uplink carriers are adjacent, i.e. using adjacent 5MHz bandwidth, network side may control dual carrier mode activation and deactivation.

[0004] 在采用DC-HSUPA技术的通信系统中,上行发射功率资源是在各载波之间是共享的。 [0004] In the communication system using DC-HSUPA technology, uplink transmit power resources are shared among the carriers. 因此一个载波占用功率必定造成另外一个载波可使用的功率减少。 Therefore, a carrier occupying power will certainly result in a reduction in power another carrier can be used. 由于上行无线链路监测是基于主载波的链路质量,并且HS-DSCH专有物理控制信道(HS-DPCCH,DedicatedPhysical Control Channel for HS-DSCH)在上行主载波传输,该信道承载上行反馈信息,因此保证上行主载波的质量十分必要。 Since the radio link based on the link quality monitoring is the primary carrier, and the HS-DSCH dedicated physical control channel (HS-DPCCH, DedicatedPhysical Control Channel for HS-DSCH) transmission in an uplink primary carrier, the channel carrying the uplink feedback information, thus ensuring the quality of the uplink primary carrier is necessary. 为了保证上行主载波的功率,对上行辅载波的专有物理控制信道(DedicatedPhysical Control Channel, DPCCH)的最大发射功率进行限制,由高层配置一个固定的门限值,使上行辅载波在整个激活状态下,DPCCH的功率不能超过该门限值。 In order to ensure the primary carrier power of the uplink, the uplink dedicated physical control channel of the secondary carrier (DedicatedPhysical Control Channel, DPCCH) to limit maximum transmit power, a high-level configuration of a fixed threshold value, so that the entire uplink secondary carrier activation state next, DPCCH power can not exceed the threshold. 在整个激活状态下,对上行辅载波的DPCCH最大发射功率的限制,虽然能够在一定程度上保证上行主载波可使用的功率,但是会对上行辅载波的内环和外环功率控制造成影响,同时也会对上行辅载波的业务传输造成不良影响,造成系统吞吐量的下降。 In the activated state throughout, limit the uplink DPCCH secondary carrier maximum transmit power, although the primary carrier to ensure that the uplink power can be used to some extent, but the secondary carrier would uplink inner and outer power control is affected, but also adversely affect the secondary carrier of the uplink service transmission, resulting in decreased system throughput.

发明内容 SUMMARY

[0005] 本发明实施例提供了一种多载波模式下上行辅载波功率控制的方法,该方法包括: [0005] The embodiment provides a method in a multi-carrier mode uplink power control of the secondary carrier according to the present invention, the method comprising:

[0006] 当激活上行辅载波时,发射所述上行辅载波的专有物理控制信道DPCCH ;根据用户设备UE的最大发射功率和上行主载波的发射功率对所述上行辅载波的DPCCH的发射功率进行控制。 [0006] When the activated secondary carrier uplink, transmitting the uplink dedicated physical control channel of the secondary carrier DPCCH; transmit power according to the maximum transmit power of the user equipment UE primary carrier and an uplink transmit power of the uplink DPCCH secondary carrier control.

[0007] 本发明实施例还提供了一种多载波模式下功率控制的装置,该装置包括: [0007] Embodiments of the invention also provides a device under a multi-carrier power control mode, the apparatus comprising:

[0008] 发射单元,用于当激活上行辅载波时,发射所述上行辅载波的专有物理控制信道DPCCH ;功率控制单元,用于根据用户设备UE的最大发射功率和上行主载波的发射功率对该上行辅载波的DPCCH的发射功率进行控制。 [0008] The transmitting unit configured to, when the uplink activated secondary carrier, the secondary carrier transmit the uplink dedicated physical control channel is the DPCCH; power control unit, for transmitting power of the user equipment UE maximum transmit power and the uplink primary carrier according to controlling the transmit power of the uplink DPCCH secondary carrier.

[0009] 本发明实施例提供的多载波模式下上行辅载波功率控制的方法或装置中,上行主载波的发射功率是实时变化的,因此,上行辅载波允许的最大发射功率也可以实时变化。 Therefore, the maximum uplink secondary carrier transmit power allowed may be changed in real time method or device an uplink multi-carrier mode according to the embodiment of the [0009] present invention, the secondary carrier power control, the transmit power of the uplink primary carrier is changed in real time. 这样,就可以在保证上行主载波可用功率的基础上,充分利用UE的发射功率,提高系统的吞吐量。 Thus, it is possible to ensure the uplink based on the primary carrier power available, full use of the UE transmit power, improve the system throughput.

附图说明 BRIEF DESCRIPTION

[0010]图1为根据本发明一个实施例的多载波模式下上行辅载波功率控制方法的流程示意图; [0010] FIG. 1 is a schematic flow of uplink secondary carrier power control method for a multi-carrier mode according to the embodiment of the present invention;

[0011]图2为根据本发明另一个实施例的载波模式下上行辅载波功率控制方法的流程示意图; [0011] FIG. 2 is a schematic flow diagram of an uplink power control method of a secondary carrier in carrier mode according to another embodiment of the present invention;

[0012]图3为根据本发明另一个实施例的多载波模式下上行辅载波功率控制装置的结构示意图; [0012] FIG. 3 is a schematic structural diagram of an uplink secondary carrier power control apparatus of the multi-carrier mode according to another embodiment of the present invention;

[0013]图4为根据本发明另一个实施例的多载波模式下上行辅载波功率控制装置的结构示意图。 Secondary uplink carrier power under the control of a schematic structure of an apparatus [0013] FIG. 4 is another embodiment of the present invention, the multi-carrier mode.

具体实施方式 Detailed ways

[0014] 以下结合附图及具体实施方式对本发明各个实施例的技术方案做进一步的详细描述。 [0014] The following further detailed description of the technical solution of various embodiments of the present invention in conjunction with the accompanying drawings and specific embodiments.

[0015]图1为本发明一个实施例的多载波模式下上行辅载波功率控制的方法。 [0015] FIG. 1 a method for multi-carrier mode according to the uplink power control of the secondary carrier embodiment of the present invention. 如图1所示,该方法可以包括: As shown in FIG 1, the method may comprise:

[0016] 步骤101,当激活上行辅载波时,发射该上行辅载波的DPCCH。 [0016] Step 101, the uplink secondary carrier when activated, transmit the uplink DPCCH secondary carrier.

[0017] 步骤102,根据UE的最大发射功率和上行主载波的发射功率对该上行辅载波的DPCCH的发射功率进行控制。 [0017] Step 102, according to the maximum transmission power and the uplink transmit power of the UE primary carrier controls the transmission power of uplink DPCCH secondary carrier.

[0018] 进一步的,对上行辅载波的DPCCH的发射功率进行控制可以包括:控制上行辅载波的DPCCH不超过上行辅载波的DPCCH允许的最大发射功率。 [0018] Further, the transmission power of the uplink DPCCH is controlled secondary carrier may include: controlling the uplink DPCCH secondary carrier not exceed the maximum transmit power of the uplink DPCCH allowed secondary carrier.

[0019] 本实施例中,上行主载波的发射功率是实时变化的,因此,上行辅载波的DPCCH允许的最大发射功率也可以实时变化。 Embodiment, the uplink transmission power of the primary carrier of the embodiment changes in real time, therefore, the maximum allowed uplink DPCCH secondary carrier transmit power may be changed in real time [0019] present. 这样,就可以在保证上行主载波可用功率的基础上,充分利用UE的发射功率,提高系统的吞吐量。 Thus, it is possible to ensure the uplink based on the primary carrier power available, full use of the UE transmit power, improve the system throughput.

[0020] 本发明其他实施例中,上行辅载波的DPCCH允许的最大发射功率Pmax, tx2可以根据公式⑴设置: [0020] Other embodiments of the present invention, the uplink DPCCH secondary carrier allowed maximum transmit power Pmax, tx2 according to the formula provided ⑴:

[0021] Pfflaxjtx2 = Pmaxjtx-Ptxa 公式(I)[0022] 其中,Ptxil上行主载波的发射功率; [0021] Pfflaxjtx2 = transmit power of the primary carrier Pmaxjtx-Ptxa formula (I) [0022] wherein, Ptxil upward;

[0023] Pmax,tx = min {Maximum allowed UL TX Power, PmaJ ,Maximum allowed ULTX Power为UE允许的最大发射功率(可以由网络侧配置),Pmax为由UE的最大输出功率(通常由UE的能力决定),Pmax, tx为两者中较小的值,即Pmax,tx为UE的最大发射功率。 [0023] Pmax, tx = min {Maximum allowed UL TX Power, PmaJ, Maximum allowed ULTX Power is the maximum allowed UE transmit power (which may be configured by the network side), Pmax by the UE maximum output power (typically by the capability of the UE decision), Pmax, tx is the value of both the smaller, i.e. Pmax, tx is the UE maximum transmit power.

[0024] 本发明其他实施例中,上行辅载波的DPCCH允许的最大发射功率Pniax, tx2还可以根据公式(2)设置: [0024] Other embodiments of the present invention, the uplink DPCCH secondary carrier maximum transmit power allowed Pniax, tx2 may also (2) is provided according to the formula:

[0025] Pmax, tx2 = Pmax, tx- a Ptxa 公式(2) [0025] Pmax, tx2 = Pmax, tx- a Ptxa formula (2)

[0026] 其中,Pmax, tx与Ptx,i与公式(I)中的相同;α为一个百分数,其取值可以为O< α≤I。 [0026] where, Pmax, tx and Ptx, i the formula (I) are the same; [alpha] as a percentage, which value can be O <α≤I. 公式(2)表示,为了满足上行辅载波的DPCCH允许的最大发射功率Pmax,tx2,主载波可以进行功率压缩,以满足UE最大发射功率要求,主载波功率可以压缩的比例为l-α。 Equation (2), in order to meet the uplink DPCCH secondary carrier allowed maximum transmit power Pmax, tx2, the primary carrier power may be compressed to meet the UE maximum transmit power requirements, the primary carrier power ratio can be compressed l-α. 例如,当α = I时,上行辅载波的DPCCH允许的最大发射功率为UE的最大发射功率除去上行主载波的发射功率之后的剩余功率;当O < α < I时,上行辅载波的DPCCH允许的最大发射功率为上行主载波的发射功率被压缩l-α后,UE的剩余功率。 For example, when α = I, the maximum uplink secondary carrier DPCCH transmit power allowed for the UE maximum transmit power of the remaining power after removing the transmit power of the uplink primary carrier; when O <α <I, the uplink secondary carrier DPCCH allowed the maximum transmit power of the uplink transmit power of the primary carrier is compressed l-α, UE power surplus.

[0027] 本发明其他实施例中,在该上行辅载波完成上行同步之前或者上行辅载波的DPCCH功率控制前导发送完成之前或者上行数据信道开始发送之前,上行辅载波的DPCCH允许的最大发射功率Pmax, tx2还可以根据公式(3)设置: [0027] The present invention still other embodiments, the completion DPCCH power before the uplink synchronization or uplink secondary carrier in the uplink secondary carrier before the preamble transmission completion control or uplink data channel before beginning transmission, the uplink secondary carrier DPCCH allowed maximum transmitting power Pmax , tx2 may also (3) is provided according to the formula:

[0028] Pmaxjtx2 = Pmax,tx-Ptxa-UE_Sec_Tx_Power_Backoff 公式(3) [0028] Pmaxjtx2 = Pmax, tx-Ptxa-UE_Sec_Tx_Power_Backoff formula (3)

[0029] 其中,UE_Sec_Tx_Power_Backoff为与UE剩余功率的偏移量,可以由网络侧配置或预定义一个值。 [0029] wherein, UE_Sec_Tx_Power_Backoff, may be configured by the network side and the UE remaining power offset or a predefined value. 这样,可以保证一定的功率裕量。 In this way, we can guarantee a certain power margin.

[0030] 本发明其他实施例中,在该上行辅载波完成上行同步之前或者上行辅载波的DPCCH功率控制前导发送完成之前或者上行数据信道开始发送之前,上行辅载波的DPCCH允许的最大发射功率Pmax, tx2还可以根据公式(4)设置: [0030] Other embodiments of the present invention, prior to the uplink secondary carrier to complete the uplink synchronization or uplink secondary carrier DPCCH power control before the preamble transmission is completed or before the uplink data channel starts to send uplink secondary carrier DPCCH allowed maximum transmitting power Pmax , tx2 may also (4) is provided according to the formula:

[0031] PmaLtx2 = PmaLtx-aPtLl-UE-SecjX-Powei^BackofT 公式(4) [0031] PmaLtx2 = PmaLtx-aPtLl-UE-SecjX-Powei ^ BackofT formula (4)

[0032] 本领域技术人员可知,当激活一个上行辅载波,该上行辅载波会有一个上行同步的过程。 [0032] Those skilled in the art that, when the activation process of a secondary carrier uplink, the uplink will have a secondary carrier uplink synchronization. 在该上行辅载波完成上行同步之前,基站会控制UE按照一定的功率控制命令图样进行功率的不断攀升,直到获得上行同步。 Uplink synchronization before the completion of the secondary uplink carrier, the base station controls the UE according to a certain pattern of power control commands for rising power until uplink synchronization is obtained. 在上行同步过程中,当上行开始发送后,在发送数据信道之前还会发送若干无线帧的上行辅载波的DPCCH功率控制前导,在该上行辅载波的DPCCH功率控制前导发送完成之后,上行辅载波就可以发送数据信道,开始进行业务的传输了。 After the uplink synchronization process, when the uplink start transmission, but also transmits the uplink secondary carrier several radio frame prior to sending the data channel DPCCH power control preamble, the DPCCH power of the uplink secondary carrier control preamble transmission is completed, the uplink secondary carrier can send a data channel, the transmission service is started.

[0033] 因此,本发明另一个实施例还提供一种多载波模式下上行辅载波功率控制方法。 [0033] Accordingly, the present invention also provides a further secondary carrier uplink power control method in a multi-carrier mode of embodiment. 如图2所示,该方法可以包括: As shown, the method may include:

[0034] 步骤201,当激活上行辅载波时,发射该上行辅载波的DPCCH。 [0034] Step 201, the uplink secondary carrier when activated, transmit the uplink DPCCH secondary carrier.

[0035] 步骤202,在该上行辅载波完成上行同步之前或者上行辅载波的DPCCH功率控制前导发送完成之前或者上行数据信道开始发送之前,控制该上行辅载波的DPCCH的发射功率不超过该上行辅载波的DPCCH允许的最大发射功率。 Before [0035] Step 202, the uplink secondary carrier until uplink synchronization is completed or uplink secondary carrier DPCCH power control before the preamble transmission is completed or the uplink data channel begins transmission, control the uplink secondary carrier transmit power of the DPCCH does not exceed the uplink secondary the maximum carrier DPCCH transmit power allowed.

[0036] 其中,该上行辅载波的DPCCH允许的最大发射功率可以根据上行主载波的发射功率和UE的最大发射功率确定。 [0036] wherein the secondary carrier uplink DPCCH transmit power may be allowed to determine the maximum transmit power of the uplink according to the primary carrier and the maximum transmit power of the UE. 具体的,可以根据公式(I)或公式(2)或公式(3)或公式 Specifically, according to the formula (I) or formula (2) or formula (3) or formula

(4)确定该上行辅载波的DPCCH允许的最大发射功率。 (4) determining the maximum transmit power of the uplink DPCCH allowed secondary carrier.

[0037] 步骤203,当该上行辅载波完成上行同步之后或者上行辅载波的DPCCH功率控制前导发送完成之后或者上行数据信道开始发送之后,根据UE的最大发射功率对上行载波的发射功率进行控制。 [0037] Step 203, when the uplink secondary carrier completed DPCCH power after uplink synchronization or uplink secondary carrier after the control preamble transmission is completed or the uplink data channel start transmission after the control of the transmit power of an uplink carrier based on the maximum transmit power of the UE.

[0038] 在步骤203中,在上行辅载波完成上行同步之后或者上行数据信道开始发送之后,或者上行辅载波的DPCCH功率控制前导发送完成之后,对上行辅载波的DPCCH的最大发射功率不再单独进行限制,可以通过功率压缩的方法保证UE的上行载波的最大发射功率为P_,tx即可。 After After [0038] In step 203, after completion of the uplink synchronization in the uplink secondary carrier, or the uplink data channel begins transmission, or the uplink secondary carrier DPCCH power control preamble transmission is completed, the maximum transmit power of the DPCCH uplink secondary carrier is no longer alone limiting, by power compression method to ensure maximum transmission power of the UE is an uplink carrier P_, tx can. 其中,功率压缩方法为本领域技术人员的公知常识,在此不再赘述。 Wherein the power-based compression methods known in the art knowledge in the field, and are not repeated here.

[0039] 本领域技术人员可以理解,通过本实施例提供的方法,不仅可以保证在上行辅载波进行上行同步的过程中或者上行辅载波的DPCCH功率控制前导发送过程中上行主载波的可用功率,还可以在发送上行数据信道的过程中使UE的发射功率得到充分利用,提高系统的吞吐量。 [0039] Those skilled in the art will appreciate, by the method of the present embodiment provides not only be able to perform the uplink synchronization procedure or an uplink secondary carrier DPCCH power control preamble transmission during an uplink primary carrier of the available power in the uplink secondary carrier, UE can also transmit power during the transmission of the uplink data channel is fully utilized manipulation, improve the system throughput.

[0040] 本领域技术人员可以理解,根据以上的实施例,还可以扩展到上行有更多载波的情况。 [0040] Those skilled in the art will be appreciated from the above embodiment, there may also be extended to the case where more uplink carriers. 当激活的上行辅载波有多个时,所有激活的上行辅载波在上行同步完成之前或者上行辅载波的DPCCH功率控制前导发送完成之前或者上行数据信道开始发送之前,允许的最大发射功率之和可以根据公式(I)至公式(4)中的任意一个进行设置。 When the active uplink secondary carrier has a plurality of, all active uplink secondary carrier until uplink synchronization is completed or uplink secondary carrier DPCCH power control before the preamble transmission is completed or prior to the data channel starts to send uplink permissible maximum transmission power and can be according to the formula (I) to any formula (4) in a set. 比如,每个激活的上行辅载波在上行同步完成之前或者上行辅载波的DPCCH功率控制前导发送完成之前或者上行数据信道开始发送之前,允许的最大发射功率为所有激活的上行辅载波允许的最大发射功率除以激活的上行辅载波的个数。 For example, each active uplink secondary carrier until uplink synchronization is completed or uplink secondary carrier DPCCH power control before the data channel start transmission before the preamble transmission is completed or the uplink, the maximum allowable transmit power is the maximum transmit all active uplink secondary carrier allowed power divided by the number of active uplink secondary carrier.

[0041] 本领域普通技术人员可以理解,实现上述多载波模式下功率控制的方法实施例中的全部或部分步骤,是可以通过计算机程序代码来指令相关的硬件来完成,所述的程序代码可存储于一计算机可读取存储介质或一计算机程序产品中,该程序被一计算机单元执行时,可执行包括如上述方法实施例的步骤。 [0041] Those of ordinary skill in the art will be appreciated, to achieve the above-described method of the multi-carrier power control mode in the embodiment all or part of steps of embodiment, may be a hardware instructed by a computer program code is completed, the program code may stored in a computer readable storage medium or a computer program product, when the program is executed by a computer unit, perform a method comprising the steps of the embodiment as described above. 其中,所述的存储介质或计算及程序产品可以为磁碟、光盘、只读存储记忆体(Read-Only Memory,ROM)或随机存储记忆体(Random AccessMemory, RAM)等。 Wherein said computing and storage medium or program product may be a magnetic disk, an optical disk, read-only memory (Read-Only Memory, ROM) or a random access memory (Random AccessMemory, RAM) and the like.

[0042]图3为根据本发明另一个实施例的多载波模式下上行辅载波功率控制装置的结构示意图。 [0042] FIG. 3 is a multi-carrier mode according to another embodiment of the present invention, a schematic view of the structure of the secondary carrier an uplink power control means. 如图3所示,该上行辅载波功率控制装置30可以包括:发射单元301和功率控制单元302。 3, the uplink secondary carrier power control apparatus 30 may include: a power transmitting unit 301 and the control unit 302.

[0043] 该发射单元301可以用于当激活上行辅载波时,发射该上行辅载波的DPCCH。 [0043] The transmitting unit 301 may be used for the uplink, when activated secondary carrier, DPCCH transmitting the uplink secondary carrier.

[0044] 该功率控制单元302可以用于根据UE的最大发射功率和上行主载波的发射功率对该上行辅载波的DPCCH的发射功率进行控制。 [0044] The power control unit 302 may be used to control the transmit power of the uplink DPCCH secondary carrier according to the maximum transmission power and the uplink transmit power of the UE primary carrier.

[0045] 进一步的,该功率控制单元302用于控制上行辅载波的DPCCH不超过上行辅载波的DPCCH允许的最大发射功率。 [0045] Further, the power control unit 302 for controlling the uplink DPCCH does not exceed the secondary carrier of the uplink DPCCH secondary carrier maximum transmit power allowed.

[0046] 本实施例提供的功率控制装置30中,上行主载波的发射功率是实时变化的,因此,上行辅载波的DPCCH允许的最大发射功率也可以实时变化。 [0046] The present embodiment provides a power control device 30 of the embodiment, the primary carrier of the uplink transmission power is changing in real time, therefore, the maximum allowed uplink DPCCH secondary carrier transmit power may be changed in real time. 这样,就可以在保证上行主载波可用功率的基础上,充分利用UE的发射功率,提高系统的吞吐量。 Thus, it is possible to ensure the uplink based on the primary carrier power available, full use of the UE transmit power, improve the system throughput.

[0047] 在其他实施例中,上行辅载波的DPCCH允许的最大发射功率可以根据方法实施例中公式(I)至公式(4)中的任意一个进行设置,在此不再赘述。 [0047] In other embodiments, the maximum allowed uplink DPCCH secondary carrier transmit power according to a formula (I) is set to any one of formulas (4) The method can be implemented, not described herein again.

[0048]图4为根据本发明另一个实施例的多载波模式下上行辅载波功率控制装置的结构示意图。 Secondary uplink carrier power under the control of a schematic structure of an apparatus [0048] FIG. 4 is another embodiment of the present invention, the multi-carrier mode. 如图4所示,该上行辅载波功率控制装置40可以包括:发射单元401和功率控制单元402。 As shown, the secondary uplink carrier power control apparatus 40 may include a 4: transmitting unit 401 and power control unit 402. [0049] 该发射单元401用于当激活上行辅载波时,发射该上行辅载波的DPCCH。 [0049] The transmitting unit 401 for the uplink secondary carrier when activated, transmit the uplink DPCCH secondary carrier.

[0050] 该功率控制单元402用于在该上行辅载波完成上行同步之前或者上行辅载波的DPCCH功率控制前导发送完成之前或者上行数据信道开始发送之前,控制该上行辅载波的DPCCH的发射功率不超过该上行辅载波的DPCCH允许的最大发射功率;并且,该功率控制单元402还可以用于当该上行辅载波完成上行同步后或者上行辅载波的DPCCH功率控制前导发送完成之后或者上行数据信道开始发送之后,根据UE的最大发射功率对上行载波的发射功率进行控制。 [0050] The power control unit 402 is used prior to the uplink secondary carrier to complete the uplink synchronization or uplink secondary carrier DPCCH power control before the preamble transmission is completed or prior to the data channel starts to transmit the uplink, controlling transmission power of the DPCCH of the uplink secondary carrier is not exceeds the uplink secondary carrier DPCCH allowed maximum transmit power; and, the power control unit 402 may also be used later when the uplink secondary carrier to complete the uplink synchronization or uplink secondary carrier DPCCH power control preamble transmission is completed or the uplink data channel start after the transmission, the transmission power control of uplink carriers according to a maximum transmit power of the UE.

[0051] 其中,该上行辅载波的DPCCH允许的最大发射功率可以根据公式(I)或公式(2)或公式(3)或公式(4)确定。 [0051] wherein the secondary carrier uplink DPCCH allowed maximum transmit power may be determined (2) or formula (3) or formula (4) according to the formula (I) or formula.

[0052] 该功率控制单元402根据UE的最大发射功率对该上行载波的发射功率进行控制可以参见图2所示的方法实施例中的相关描述,在此不再赘述。 [0052] The power control unit 402 according to the maximum transmit power of the UE transmission power control of uplink carriers shown in FIG 2, reference may be related to a method described in the embodiment, are not repeated here.

[0053] 本领域技术人员可以理解,通过本实施例提供的功率控制装置40,不仅可以保证在上行辅载波进行上行同步的过程中或者上行辅载波的DPCCH功率控制前导发送过程中上行主载波的可用功率,还可以在发送上行数据信道的过程中使UE的发射功率得到充分利用,提高系统的吞吐量。 [0053] Those skilled in the art will appreciate, the power provided by the present embodiment of the control apparatus 40, not only to be able to perform the uplink synchronization procedure or an uplink secondary carrier DPCCH power of the uplink control preamble sent during the primary carrier in the uplink secondary carrier available power, transmit power may also be a UE in transmitting the uplink data channel is fully utilized manipulation, improve the system throughput.

[0054] 本领域普通技术人员可以理解,该上行辅载波功率控制装置20可以为UE的一个物理单元或一个逻辑模块。 [0054] Those of ordinary skill in the art will be appreciated that the secondary uplink carrier power control apparatus 20 may be a physical or a logical block unit UE.

[0055] 以上实施例仅用以说明本发明的技术方案,而非对其限制。 [0055] The above embodiments are intended to illustrate the present invention, rather than limiting. 尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。 . Although the present invention has been described in detail embodiments, those of ordinary skill in the art should be understood: that they may still technical solutions described in the various embodiments make modifications to the, or part of the technical features equivalent replacements; these modifications or replacements do not cause the essence of corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1.一种多载波模式下上行辅载波功率控制的方法,其特征在于,包括: 当激活上行辅载波时,发射所述上行辅载波的专有物理控制信道DPCCH ; 根据用户设备UE的最大发射功率和上行主载波的发射功率对所述上行辅载波的DPCCH的发射功率进行控制; 所述上行辅载波的DPCCH允许的最大发射功率P _,tx2为: Pmax,tx2 ^max, tx ^tx, I » 或者Pmax,tx2 Pmax,tx ^ ^tx, I » 或者Pmax, tx2 = Pmax, tx^tx, rUE_Sec_Tx_Power_Backoff ;或者Pmax, tx2 = Pmax, tx~ α Ptx, rUE_Sec_Tx_Power_Backof f ; 其中,Ptx,I为所述上行主载波的发射功率;pmax, tx为所述UE的最大发射功率,且Pniax, tx=min{Maximum allowed UL TX Power, PmaJ,其中,Maximumallowed UL TX Power 为所述UE允许的最大发射功率,Pmax为所述UE的最大输出功率;UE_Sec_TX_P0Wer_Back0ff为功率偏移量,所述上行主载波功率可以压缩的比例为1-α,0 < α < I。 The method of power control of the uplink secondary carrier under A multi-carrier mode, characterized by comprising: an uplink when activated secondary carrier, the secondary carrier transmit the uplink the DPCCH dedicated physical control channel; a maximum transmission according to the user equipment UE and an uplink transmit power of the primary carrier power is the transmit power of the uplink DPCCH of the control secondary carrier; secondary carrier of the uplink DPCCH allowed maximum transmit power P _, tx2 is: Pmax, tx2 ^ max, tx ^ tx, I »or Pmax, tx2 Pmax, tx ^ ^ tx, I» or Pmax, tx2 = Pmax, tx ^ tx, rUE_Sec_Tx_Power_Backoff; or Pmax, tx2 = Pmax, tx ~ α Ptx, rUE_Sec_Tx_Power_Backof f; wherein, Ptx, I is the said uplink transmit power of the primary carrier; pmax, tx is the UE maximum transmission power, and Pniax, tx = min {maximum allowed UL TX power, PmaJ, wherein, Maximumallowed UL TX power for the UE maximum transmit power allowed , Pmax of the maximum output power of the UE; UE_Sec_TX_P0Wer_Back0ff a power offset of the uplink can be compressed primary carrier power ratio of 1-α, 0 <α <I.
2.根据权利要求1所述的方法,其特征在于,所述对上行辅载波的DPCCH的发射功率进行控制包括:控制所述上行辅载波的DPCCH不超过所述上行辅载波的DPCCH允许的最大发射功率。 Maximum control of the uplink DPCCH secondary carrier does not exceed the allowed uplink DPCCH secondary carrier: 2. The method according to claim 1, wherein said transmission power control comprises a secondary carrier uplink DPCCH transmission power.
3.根据权利要求1-2任意一项所述的方法,其特征在于,根据用户设备UE的最大发射功率和上行主载波的发射功率对所述上行辅载波的DPCCH的发射功率进行控制包括: 在所述上行辅载波完成上行同步之前或者所述上行辅载波的DPCCH功率控制前导发送完成之前或者上行数据信道开始发送之前,控制所述上行辅载波的DPCCH的发射功率不超过所述上行辅载波的DPCCH允许的最大发射功率。 The method according to any one of claims 1-2, wherein the control includes the uplink transmit power of the DPCCH secondary carrier transmit power based on the maximum transmit power of the user equipment UE and the uplink primary carrier: before the uplink secondary carrier or completed before the uplink synchronization of the uplink secondary carrier DPCCH power control preamble transmission is completed before or starts transmitting uplink data channel, the uplink control secondary carrier transmit power of the uplink DPCCH does not exceed the secondary carrier DPCCH maximum allowable transmit power.
4.根据权利要求3所述的方法,其特征在于,还包括: 当所述上行辅载波完成上行同步之后或者所述上行辅载波的DPCCH功率控制前导发送完成之后或者上行数据信道开始发送之后,根据所述UE的最大发射功率对上行载波的发射功率进行控制。 4. The method according to claim 3, characterized in that, further comprising: after completion of said secondary carrier uplink or the uplink synchronization after the completion of the transmission after the preamble or starts to send uplink data channel of the uplink DPCCH power control secondary carrier, controlling the transmission power of uplink carriers according to a maximum transmit power of the UE.
5.一种多载波模式下上行辅载波功率控制的装置,其特征在于,包括: 发射单元,用于当激活上行辅载波时,发射所述上行辅载波的专有物理控制信道DPCCH ; 功率控制单元,用于根据用户设备UE的最大发射功率和上行主载波的发射功率对该上行辅载波的DPCCH的发射功率进行控制; 所述上行辅载波的DPCCH允许的最大发射功率Pniax, tx2为: Pmax,tx2 Pmax,tx ^tx, I » 或者Pmax,tx2 ^max, tx ^ ^tx, I » 或者Pmax, tx2 = Pmax, tx^tx, rUE_Sec_Tx_Power_Backoff ;或者Pmax, tx2 = Pmax, tx~ α Ptx, rUE_Sec_Tx_Power_Backof f ; 其中,Ptx,I为所述上行主载波的发射功率;pmax, tx为所述UE的最大发射功率,且Pniax, tx=min {Maximum allowed UL TX Power, PmaJ,其中,Maximumallowed UL TX Power 为所述UE允许的最大发射功率,Pmax为所述UE的最大输出功率;UE_Sec_TX_P0Wer_Back0ff为功率偏移量,所述上行主载波功率可以压缩的比例为1-α Means an uplink power control secondary carrier 5. A multi-carrier mode, characterized by comprising: a transmission unit for transmitting the uplink when activated secondary carrier, the secondary carrier transmit the uplink the DPCCH dedicated physical control channel; Power Control means for performing the transmit power of the user equipment UE maximum transmit power and the uplink transmit power of the primary carrier of the uplink DPCCH of the control secondary carrier; secondary carrier of the uplink DPCCH transmitting power allowable maximum Pniax, tx2 is: Pmax , tx2 Pmax, tx ^ tx, I »or Pmax, tx2 ^ max, tx ^ ^ tx, I» or Pmax, tx2 = Pmax, tx ^ tx, rUE_Sec_Tx_Power_Backoff; or Pmax, tx2 = Pmax, tx ~ α Ptx, rUE_Sec_Tx_Power_Backof F; wherein, Ptx, I is the primary carrier of the uplink transmission power; pmax, tx is the UE maximum transmission power, and Pniax, tx = min {maximum allowed UL TX power, PmaJ, wherein, Maximumallowed UL TX power the maximum allowed transmit power of the UE, Pmax of the maximum output power of the UE; UE_Sec_TX_P0Wer_Back0ff a power offset of the uplink can be compressed primary carrier power ratio of 1-α 0 < α < I。 0 <α <I.
6.根据权利要求5所述的装置,其特征在于, 所述功率控制单元进一步用于控制上行辅载波的DPCCH不超过上行辅载波的DPCCH允许的最大发射功率。 6. The apparatus as claimed in claim 5, wherein the maximum transmission power DPCCH power control unit is further for controlling the uplink secondary carrier is not more than the uplink DPCCH allowed for the secondary carrier.
7.根据权利要求5-6任意一项所述的装置,其特征在于, 所述功率控制单元,进一步用于在所述上行辅载波完成上行同步之前或者所述上行辅载波的DPCCH功率控制前导发送完成之前或者上行数据信道开始发送之前,控制所述上行辅载波的DPCCH的发射功率不超过所述上行辅载波的DPCCH允许的最大发射功率。 7. The device according to any one of claims 5-6, wherein the power control unit is further configured to prior to completion of the DPCCH power in uplink synchronization of the uplink secondary carrier or secondary carrier of the uplink control preamble before transmission is complete or until a maximum uplink data channel transmission starts, the control of the uplink DPCCH secondary carrier transmit power does not exceed the allowed uplink DPCCH secondary carrier transmit power.
8.根据权利要求7任意一项所述的装置,其特征在于, 所述功率控制单元,进一步用于当所述上行辅载波完成上行同步之后或者所述上行辅载波的DPCCH功率控制前导发送完成之后或者上行数据信道开始发送之后,根据所述UE的最大发射功率对上行载波的发射功率进行`控制。 8. The device according to any one of claim 7, wherein the power control unit is further configured, after the completion of secondary carrier when the uplink or the uplink synchronization of the uplink secondary carrier DPCCH power control preamble transmission is completed after or after start sending uplink data channel, transmission power control for the uplink `carrier according to a maximum transmit power of the UE.
CN 200910109358 2009-08-18 2009-08-18 Method and device for controlling upstream auxiliary carrier wave power under multiple carrier wave mode CN101998604B (en)

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