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WO2013071778A1 - Procédé et dispositif de régulation de la puissance sur la liaison montante - Google Patents

Procédé et dispositif de régulation de la puissance sur la liaison montante Download PDF

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Publication number
WO2013071778A1
WO2013071778A1 PCT/CN2012/079856 CN2012079856W WO2013071778A1 WO 2013071778 A1 WO2013071778 A1 WO 2013071778A1 CN 2012079856 W CN2012079856 W CN 2012079856W WO 2013071778 A1 WO2013071778 A1 WO 2013071778A1
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WIPO (PCT)
Prior art keywords
signal
power
uplink
channel
transmit power
Prior art date
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Ceased
Application number
PCT/CN2012/079856
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English (en)
Chinese (zh)
Inventor
高雪娟
林亚男
沈祖康
潘学明
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China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
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Publication date
Priority claimed from CN2011103664829A external-priority patent/CN102378341A/zh
Application filed by China Academy of Telecommunications Technology CATT filed Critical China Academy of Telecommunications Technology CATT
Publication of WO2013071778A1 publication Critical patent/WO2013071778A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control

Definitions

  • the present invention relates to the field of communications, and in particular, to an uplink power control method and apparatus.
  • the uplink power control can minimize the interference between the UEs (User Equipments) that use the same resources in the neighboring cells, and ensure that the UE's transmit power is properly used.
  • UEs User Equipments
  • the uplink power to be controlled mainly includes the transmit power of the PUCCH (Physical Uplink Control Channel), the transmit power of the Physical Uplink Shared Channel (PUSCH), and the SRS (Souding Reference Signal).
  • the transmit power and the transmit power of the PRACH (Physical Random Access Channel) channel are also included in the PUCCH (Physical Uplink Control Channel), the transmit power of the Physical Uplink Shared Channel (PUSCH), and the SRS (Souding Reference Signal).
  • the transmit power used by the UE to transmit PUCCH on the primary carrier ⁇ PUCCH is calculated by the following formula:
  • PCMAX , C ('') is the maximum transmit power allowed for the carrier of carrier C in subframe i.
  • Parameters - PUCCH (F) is configured by the higher layer and corresponds to the power offset of the different PUCCH format relative to the PUCCH format la.
  • h ⁇ n CQi ⁇ HARQ , n SR is the power offset associated with the number of bits carried by puccH, where " c is the number of CSI (Channel State Information) bits of the bearer, " HARQ is the bearer ACK ( ACKnowledgment, positive acknowledgment) /NACK (Non-ACKnowledgment, negative acknowledgment) The number of bits, which is the number of SR (Scheduling Request) bits carried.
  • the power target value is configured by higher layer signaling.
  • g(i) is the cumulative value of the power control command, where 4UCCH is the UE-specific correction value, also known as the TPC (Transmit Power Control) command.
  • SpuCcCcHW-- represents the correction value obtained in the subframe i-k m .
  • k m is in the downlink subframe set that needs to perform uplink information feedback in the current subframe.
  • M is the number of downlink subframes in the downlink subframe set
  • FDD Frequency Division Duplex
  • P ⁇ is the path loss of the carrier c measured by the UE, and can be configured by the higher layer signaling by using the paired carrier (also referred to as the SIB-2 linkage carrier) or the primary carrier configured by the SIB (System Information Block) 2 information. Measured.
  • the UE transmits the PUSCH transmit power Ppusci ⁇ on carrier c according to the following formula:
  • the UE transmits on carrier c.
  • the PUSCH transmit power Ppusci ⁇ is calculated according to the following formula:
  • M PUSCH, « is the resource size of puscH on carrier c , expressed in RB (Resource Block).
  • - PUSCH , c ( ') is the PUSCH desired power target value on carrier c, configured by higher layer signaling. It is the path loss compensation factor of carrier c, which is a cell-specific parameter and is configured by higher layer signaling.
  • p is the path loss of the carrier c measured by the UE, and can be measured by the higher layer signaling configuration UE using the paired carrier or the primary carrier configured by the SIB2 information.
  • BPRE Bit Per Resource Element
  • the number of bits corresponding to the element, Poffset indicates the offset between the coding rate of the uplink control information carried in the PUSCH and the coding rate of the uplink data on the PUSCH, and is pre-configured by the higher layer signaling.
  • Poffset For the PUSCH power control adjustment amount, there are two ways of accumulating value and current absolute value.
  • the transmit power P SRS required for a UE to transmit SRS on carrier c is defined by the following formula:
  • 3 ⁇ 4S,c (') min ⁇ P CMAX, c (0, 3 ⁇ 4S_OFFSET,c O) + 10 log 10 ( SRS)C ) + P 0 _PUSCH, c 0') + « c (i) ⁇ PL c + fc (') ⁇ [dBm]
  • p s RS _ OTFSET , c ⁇ ) is the power offset of SRS relative to puscH in different antenna port configurations on carrier c
  • MsRS , c is the SRS transmission bandwidth on carrier c, expressed in RB number.
  • the remaining parameters are the same as the power control parameters of the PUSCH on the carrier.
  • the PREAMBLE_RECEIVED_TARGET_POWER is calculated by the MAC (Media Access Control) layer of the UE and is the target power of the PRACH.
  • the uplink power control scheme is based on power control in which PUCCH and PUSCH of the same or different carriers are simultaneously transmitted in one subframe. If the total transmit power of the UE in the current subframe i exceeds the maximum transmit power allowed by the UE, when performing power reduction, the UE should preferentially guarantee the transmit power of the PUCCH, and proportionally reduce the PUSCH transmit power on each carrier c to meet The maximum transmit power limit allowed by the UE:
  • Ppu SCH , e ('') is the linear domain value of 3 ⁇ 4jsc e ('')
  • the UE Priority should be given to ensure that the transmit power of the PUCCH is not reduced.
  • the transmit power of the PUSCH carrying the UCI is not reduced, and the PUSCH transmit power on each carrier is reduced proportionally to meet the maximum transmit power limit allowed by the UE:
  • the uplink transmission defined by LTE-ARel-10 only supports Intra-band CA (Carrier Aggregation). It is considered that the radio signal propagation characteristics of each carrier are similar, so they are all based on PCC (Primary Component Carrier).
  • the TA (Time Advance) obtained by the PRACH process on the uplink adjusts the uplink transmission time, so the uplink transmission times of the multiple carriers are aligned, so the power control can be performed in units of subframes.
  • LTE-ARel-11 it can support CAs with different inter-band uplinks, and CA deployment schemes of Macro e B (Macro Evolved Node B) and RRH (Remote Radio Head). . Since the radio signal propagation characteristics of different frequency bands are different, and the propagation paths of the macro base station and the RRH are different, the time when the signals transmitted by different carriers arrive at the base station may be different. Therefore, in Rel-11, the TAs of different carriers may be different, and the uplink transmission times of multiple carriers are not necessarily aligned. Therefore, the uplink channel on one carrier may be in the different transmission period in one subframe, possibly with the previous subframe. The uplink channel is transmitted simultaneously. Therefore, the subframe-based power control scheme will no longer apply. Summary of the invention
  • An embodiment of the present invention provides an uplink power control method and apparatus, which are used to implement power control on an uplink channel with different uplink transmission times, so as to ensure that the total transmit power of the user equipment in one subframe does not exceed the maximum transmit power, Ensure that the system works properly.
  • An uplink power control method includes the following steps:
  • the user equipment determines a target transmit power of each uplink channel/signal transmitted in the current uplink subframe
  • the user equipment according to the uplink transmission time advance of the uplink carrier where each uplink channel/signal transmitted in the current uplink subframe is located, in the order of the uplink transmission time advancement from the largest to the smallest, in the current uplink subframe
  • the target transmit power of the uplink channel/signal is transmitted for power control. After the power control is performed, the total transmit power of the user equipment at any time in the current uplink subframe does not exceed the preset maximum transmit power.
  • a user equipment including:
  • a power calculation module configured to determine a target transmit power of each uplink channel/signal transmitted in the current uplink subframe
  • a power control module configured to: according to the uplink carrier where each uplink channel/signal transmitted in the current uplink subframe is located
  • the uplink transmission time advancement quantity is used to perform power control on the target transmission power of the uplink channel/signal transmitted in the current uplink subframe according to the order in which the uplink transmission time advance amount is from large to small, to satisfy the power control,
  • User setting The total transmit power at any time in the current uplink subframe does not exceed the preset maximum transmit power.
  • the user equipment performs power control on the target transmit power of the uplink channel/signal transmitted in the current uplink subframe according to the order of the uplink transmission time advancement, in order to satisfy the power control.
  • the total transmit power of the user equipment at any time in the current uplink subframe does not exceed the preset maximum transmit power, which ensures that the system can work normally.
  • FIG. 1 is a flowchart of a main method for uplink power control according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for performing power control according to TA from large to small in the embodiment of the present invention
  • FIG. 3 is a schematic diagram of transmission according to FIG. 2 according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a method for preferentially performing power control on a PUCCH according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of transmission according to FIG. 4 according to an embodiment of the present invention.
  • FIG. 6 is a structural diagram of a user equipment according to an embodiment of the present invention. detailed description
  • the user equipment performs power control on the target transmit power of the uplink channel/signal transmitted in the current uplink subframe according to the order of the uplink transmission time advancement, in order to satisfy the power control, the user equipment is currently
  • the total transmit power at any time in the uplink subframe does not exceed the preset maximum transmit power, which ensures that the system can work normally.
  • the uplink transmission time advancement in the same uplink subframe of the carrier belonging to the same TA group is the same, that is, the uplink channel transmission on each carrier in the TA group in the same uplink subframe. Time alignment.
  • the main method of uplink power control in this embodiment is as follows:
  • Step 101 The user equipment determines a target transmit power of each uplink channel/signal (ie, an uplink channel, or an uplink signal, or an uplink channel and an uplink signal) transmitted in the current uplink subframe.
  • the specific implementation refers to the introduction of the background art, that is, determining the target transmission power of an uplink channel/signal on a carrier according to the power calculation formula and the related power control parameter configuration of the background introduction part.
  • Step 102 The user equipment transmits, according to the uplink transmission time advance quantity of the uplink carrier where each uplink channel/signal transmitted in the current uplink subframe is transmitted, in the order of the uplink transmission time advancement from the largest to the smallest, in the current uplink subframe.
  • the target transmit power of the uplink channel/signal is subjected to power control. After the power control is performed, the total transmit power of the user equipment at any time in the current uplink subframe does not exceed the preset maximum transmit power.
  • the preset maximum transmit power includes the maximum transmit power allowed by the user equipment and/or the maximum transmit power allowed per frequency band.
  • the user equipment performs power control on the target transmit power of the uplink channel/signal transmitted in the current uplink subframe according to the order of the uplink transmit time advancement. After the power control is performed, the user equipment is in the current uplink subframe.
  • the total transmit power of the instant does not exceed the preset maximum transmit power, including:
  • the user equipment determines, according to the order of the uplink transmission time advancement, an unadjusted uplink channel/signal set having the same uplink transmission time advance amount, the uplink channel/signal set including at least one uplink channel/signal Power control of the target transmit power of the uplink channel/signal in the uplink channel set according to the transmit power of the other uplink channel/signal simultaneously transmitted with the uplink channel/signal set at the initial transmission time of the uplink channel/signal set After the power control is performed, the total transmit power of the user equipment does not exceed the preset maximum transmit power at the initial transmission time, where the total transmit power is the transmit power of each uplink channel/signal in the uplink channel/signal set.
  • the other uplink channel/signal includes a power channel-controlled uplink channel/signal that is simultaneously transmitted in at least the uplink channel/signal part of the uplink channel/signal set in the current uplink subframe, and/or on the uplink At the initial transmission time of the channel/signal set, there is a transmitted uplink channel/signal at the initial transmission time of the uplink channel/signal set in the previous adjacent subframe of the current uplink subframe. It should be noted that other uplink channels/signals may be empty sets, that is, when the uplink channel/signal does not exist.
  • the user equipment performs power control on the uplink channel/signal in the uplink channel set according to the transmit power of the other uplink channel/signal simultaneously transmitted with the uplink channel/signal set at the initial transmission time of the uplink channel/signal set to satisfy After the power control, the total transmit power of the user equipment does not exceed the preset maximum transmit power at the initial transmission time of the uplink channel/signal set, and specifically includes:
  • the target transmission power of each uplink channel/signal in the uplink channel/signal set is subjected to equal power reduction, and the transmission power of each uplink channel/signal after power control is obtained.
  • the uplink channel/signal in the uplink channel/signal set is gradually reduced in power according to the channel/signal priority from low to high, and the target transmit power of multiple channels/signals having the same channel/signal priority is performed.
  • the power of the uplink channel/signal after power control is obtained, and the uplink transmit channel/signal that does not need to be reduced in power is determined, and the target transmit power is determined as the transmit power after power control.
  • the equal-rate power is reduced for the lowest priority uplink channel/signal, and if the power is reduced to 0, the user equipment is at the uplink channel at the moment/ If the total power of the signal is still higher than the maximum transmit power, the proportional channel power of the lower priority channel/signal is reduced, and so on, until the total power of the uplink channel/signal of the user equipment at that moment is not higher than the maximum. Transmit power. If the total power of the uplink channel/signal of the user equipment is not higher than the maximum transmit power after power reduction of one or several lower priority uplink channels/signals, the uplink channel/signal of other priorities The transmit power remains unchanged, that is, its target transmit power is the transmit power after power control.
  • the power reduction ratio corresponding to the frequency band is reduced by a power factor, and the transmission power of each uplink channel/signal after power control is obtained.
  • the power reduction ratio low coefficient is pre-agreed by the user equipment and the base station, or is signaled by a high layer signaling or a PDCCH (Pyhsical Downlink Control Channel), and the high layer signaling includes RRC (Radio Resource Control, wireless). Resource control) Signaling, MAC (Medium Access Control) signaling.
  • the power reduction scaling factor can be configured based on different frequency band characteristics, such as frequency location, bandwidth, channel status, configured transmission information type, traffic, and the like.
  • the power reduction ratio coefficients of different frequency bands may be the same or different.
  • the configuration may be fixed, and no agreement or notification is needed.
  • the target transmit power of the channel/signal in different frequency bands having the same channel/signal priority in the uplink channel/signal set is reduced according to the power reduction ratio coefficient corresponding to the frequency band, and the uplink channel/signal after power control is obtained.
  • Transmit power where, for the uplink channel/signal power with a power reduction proportional coefficient of 1, the target transmit power is determined as the transmit power after power control, and for the uplink channel/signal that does not need to reduce the power, the target transmit power is determined to be the power. Controlled transmit power.
  • power reduction is performed on the lowest priority uplink channel/signal, that is, the channel/signal in the same frequency band is reduced in equal power, and the channel/signal in different frequency bands is reduced in power according to the power reduction proportional coefficient of the frequency band in which the frequency band is located. If the power of the channel/signal with the lowest priority is reduced to 0, and the total power of the uplink channel/signal of the user equipment at this moment is still higher than the maximum transmit power, the power of the lower priority channel/signal is reduced. That is, the channel/signal in the same frequency band is reduced in equal power, and the channel/signal in different frequency bands is reduced in power according to the power reduction ratio coefficient of the frequency band, and so on, until the user equipment is in the uplink channel at the moment.
  • the total power of the /signal is not higher than the maximum transmit power. If the total power of the uplink channel/signal of the user equipment is not higher than the maximum transmit power after power reduction of one or several lower priority uplink channels/signals, the uplink channel/signal of other priorities The transmit power remains unchanged, that is, its target transmit power is the transmit power after power control. Among them, the channel/signal priority is:
  • PUCCH>PUSCH carrying UCI>PUSCH SRS not carrying UCI;
  • PRACH>PUCCH>PUSCH carrying UCI>PUSCH SRS not carrying UCI;
  • PUCCH>PRACH>PUSCH carrying UCI>PUSCH SRS not carrying UCI.
  • the SRS includes a periodic SRS and an aperiodic SRS, and the priority of the aperiodic SRS is greater than or equal to the priority of the periodic SRS.
  • the target transmit power of each uplink channel/signal in the uplink channel/signal set is determined as the transmit power of each uplink channel/signal after power control.
  • the user equipment If there is a PUCCH or a PRACH transmission in the current uplink subframe, the user equipment performs power control on the target transmission power of the uplink channel/signal transmitted in the current uplink subframe in descending order of the uplink transmission timing advance. Priority power control is performed on the target transmit power of the PUCCH or PRACH in the current uplink subframe.
  • the PUCCH carries the UCI information
  • the PRACH is an important channel for obtaining the uplink synchronization for the uplink carrier.
  • the importance of the PUCCH or the PRACH is considered to be the highest. Therefore, whether the uplink transmission time advance corresponding to the uplink carrier where the PUCCH or the PRACH is located is large or small.
  • the power of the target transmit power of the PUCCH or the PRACH is first controlled to determine its transmit power first. There are two main ways:
  • the user equipment determines that the target transmission power of the PUCCH or the PRACH is the transmission power after the PUCCH or PRACH power control. That is, the transmit power of the PUCCH or the PRACH does not need to be reduced; wherein, for the PRACH transmitted in the current uplink subframe, since the PRACH transmission has no uplink transmission time advance, the PRACH is only related to the current uplink subframe or the current uplink subframe and thereafter.
  • the uplink channel/signal in a neighboring uplink subframe is transmitted simultaneously on all or part of the symbol, and is not simultaneously transmitted with the uplink channel/signal in the previous adjacent uplink subframe, that is, the initial transmission of the PRACH in the current subframe. There is always no uplink channel/signal transmission in the previous adjacent subframe at all times.
  • Manner 2 When there is an uplink channel/signal transmission in a previous adjacent subframe at the initial transmission time of the PUCCH or the PRACH, the user equipment determines the target transmission power of the PUCCH or the PRACH and the uplink channel in the previous adjacent subframe/ Whether the sum of the transmit powers of the signals exceeds a preset maximum transmit power.
  • the stage gradually reduces the transmit power of the uplink channel/signal in the corresponding previous adjacent subframe to meet the power reduction, and the transmit power of the PUCCH or PRACH at the moment is in the corresponding previous adjacent subframe. The sum of the transmit powers of the uplink channels/signals does not exceed the preset maximum transmit power.
  • the uplink channel/signal in the previous adjacent subframe of the transmission does not include the PRACH channel at the initial transmission timing of the PUCCH, that is, the corresponding previous neighbor
  • the uplink channel/signal in the subframe includes only one or more of the PUSCH carrying the UCI, the PUSCH not carrying the UCI, and the SRS.
  • the transmission power of the PUCCH in the current subframe is kept unchanged, according to the channel/signal.
  • the priority is gradually reduced as described above for the transmission power of the uplink channel/signal in the previous adjacent subframe.
  • the sum of the transmission power of the channel/signal does not exceed the maximum transmit power; or, the power is reduced in proportion to the uplink channel/signal in the previous subframe; or, in the same frequency band, the uplink channel/signal in the previous subframe
  • the channel/signal ratio reduces power, and the channel/signal in different frequency bands performs power reduction according to the power reduction proportional coefficient corresponding to the frequency band; or, according to the channel/signal priority, multiple channels/signals having the same channel/signal priority level Channels/signals in the same frequency band are proportionally reduced in power, and have the same channel/signal priority
  • the channels/signals in different frequency bands of the plurality of channels/signals of the stage are reduced in power according to the power reduction proportional coefficient corresponding to the frequency band.
  • SC-FDMA Single Carrier-Frequency Division Multiple Access
  • the transmission power of the uplink channel/signal in the PUCCH or the PRACH and the previous adjacent subframe is gradually reduced according to the channel/signal priority to satisfy the power reduction, and the PUCCH or the PRACH is obtained at the moment.
  • the sum of the transmit power and the transmit power of the uplink channel/signal in the previous adjacent subframe does not exceed the preset maximum transmit power.
  • the priority is higher than the PUCCH or PRACH.
  • the transmission power of the channel/signal is unchanged, and the minimum of the difference between the target transmit power of the PUCCH or PRACH, the preset maximum transmit power, and the transmit power of the channel/signal having a higher priority than the PUCCH or PRACH is used as the The transmit power of the PUCCH or PRACH power control, and the uplink of the previous adjacent subframe except the channel/signal priority of the PUCCH or the PRACH in the current subframe is gradually stepped according to the channel/signal priority.
  • the transmission power of the channel/signal is reduced to meet the power reduction, and the PUCCH or PRACH is sent at that moment.
  • the sum of the transmit power and the transmit power of the uplink channel/signal in the corresponding previous adjacent subframe does not exceed the preset maximum transmit power.
  • the transmission power of the PRACH in the previous neighboring subframe is kept unchanged, and the PUCCH in the current subframe and the corresponding previous neighbor are gradually stepped according to the channel/signal priority.
  • the transmit power of the uplink channel/signal except the PRACH in the subframe is reduced, that is, if the target transmit power of the PUCCH in the current subframe is smaller than the difference between the preset maximum transmit power and the transmit power of the PRACH in the previous adjacent subframe.
  • the difference in power is used as the transmit power of the PUCCH power control in the current subframe, and the PRACH in the corresponding previous subframe
  • the transmit power of other uplink channels/signals is reduced to 0, that is, the channels/signals are not transmitted; if the priority of the PUCCH is higher than the PRACH, then: the transmit power of the PUCCH in the current subframe is kept unchanged, according to the channel/signal
  • the priority is gradually reduced to the transmit power of the uplink channel/signal in the corresponding previous adjacent subframe, and the specific procedure is similar to the foregoing process, that is, the PUCCH in the current subframe and the previous adjacent subframe are in the foregoing step.
  • PRACH exchange location
  • the difference between the preset maximum transmit power and the transmit power of the uplink channel/signal in the previous adjacent subframe is used as the transmit power after the PUCCH or PRACH power control.
  • the uplink channel/signal in the previous adjacent subframe of the transmission at the initial transmission moment of the PUCCH includes only the PRACH, and the priority of the PRACH is higher than the PUCCH when the power is controlled.
  • the transmit power of the PRACH in the previous adjacent subframe is kept unchanged, and the difference between the preset maximum transmit power and the transmit power of the PRACH in the previous adjacent subframe is taken as the current subframe.
  • the transmit power of the PUCCH is used as the transmit power after the PUCCH or PRACH power control.
  • the target transmission power of the PUCCH or PRACH is the transmission power after the PUCCH or PRACH power control.
  • the user equipment performs power control on the target transmit power of the uplink channel/signal transmitted in the current uplink subframe in descending order of the uplink transmission timing advance.
  • Priority power control is only performed on the target transmit power of the channel having higher channel/signal priority in PUCCH and PRACH.
  • the specific power control step is performed according to the foregoing mode 1 or mode 2, and details are not described herein.
  • the channel with the lower priority in the PUCCH and the PRACH may be not specially processed, that is, the power control is performed in descending order of the uplink transmission time advance, or based on the preset maximum transmit power and priority.
  • the base station can preferentially transmit the PUCCH on the PCC to ensure the transmit power of the PUCCH as much as possible.
  • the base station can use the uplink carrier with the largest TA as the PCC to ensure the transmit power of the PUCCH as much as possible.
  • the uplink channel/signal in the foregoing method includes but is not limited to: PUCCH, PUSCH (PUSCH carrying UCI, PUSCH not carrying UCI), PRACH, SRS, and the like.
  • the transmit power in the subsequent transmit subframe may be based on the transmit power of the first transmit subframe, and the power control of the uplink channel in the subsequent subframe is
  • the PRACH transmission power is based on the reference (ie, the PRACH transmission power is fixed). That is, when the PRACH priority is the highest, the transmit power of the continuously transmitted PRACH may be merged into the preset maximum transmit power of each transmission subframe, for example, the original preset maximum transmit power of each subframe and the PRACH.
  • the difference between the transmit powers is used as the preset maximum transmit power used for power control in the subframe, and then the corresponding uplink channel/signal is power-controlled based on the preset maximum transmit power.
  • the above method is applicable to both intra-band (in-band) and inter-band (cross-band) CA (carrier aggregation) scenarios.
  • the above method is applicable to both FDD and TDD modes.
  • Step 201 The user equipment determines a target transmit power of each uplink channel/signal on each carrier in the current uplink subframe.
  • Step 202 The user equipment determines the uplink channel/signal set on the carrier with the largest TA that is not subjected to power control in the current subframe, and the uplink channel in the current subframe that is simultaneously transmitted at the initial transmission time of the uplink channel/signal set/ And whether the sum of the transmit powers of the uplink channels/signals in the previous adjacent subframe simultaneously transmitted at the initial transmission time of the uplink channel/signal set exceeds a preset maximum transmit power, and if yes, proceeding to step 203, Otherwise proceed to step 204.
  • Step 203 The user equipment performs power control on the uplink channel/signal set on the carrier that currently has the largest TA, and makes the uplink channel/signal in the current subframe simultaneously transmitted at the initial transmission time of the uplink channel/signal set. And the sum of the transmit powers of the uplink channels/signals of the previous subframe simultaneously transmitted at the initial transmission time of the uplink channel/signal set does not exceed the preset maximum transmit power.
  • Step 204 The user equipment uses the target transmit power of each uplink channel/signal in the uplink channel/signal set on the carrier currently having the largest TA as the actual transmit power.
  • Step 205 The user equipment continues to perform power control in the current subframe according to the order of the TAs from large to small.
  • the uplink channel/signal repeats the above step 202 for power control until the total transmit power of the user equipment does not exceed the preset maximum transmit power at any time in the current subframe.
  • the user equipment aggregates 5 carriers for uplink transmission.
  • the uplink transmission time of carriers 1 and 2 is 1 SC-FDMA symbol ahead of carriers 3, 4, and 5 due to different TAs.
  • the transmission situation is shown in Figure 3.
  • User equipment determinator The specific behavior of the transmission power of the channel in the frame i (i indicates a certain subframe) is as follows: The user equipment first calculates the transmission power P PUCC 1 of the PUCCH on the carrier 1 according to the correlation formula of the background introduction part, and carries the UCI on the carrier 2
  • Power control requires the upstream channel/signal in the current uplink channel/signal set at the current time
  • the transmit power of other uplink channels/signals transmitted at the same time, and the other uplink channels include the power-controlled uplink channel/signal that is simultaneously transmitted with at least the partial symbols of the uplink channel/signal in the uplink channel/signal set in the current uplink subframe, And/or the uplink channel/signal of the transmission in the previous neighboring subframe of the current uplink subframe, where the other uplink channel mainly refers to the current uplink in the previous neighboring subframe of the current uplink subframe.
  • Method 1 According to formula (1), the power is reduced in proportion to all channels/signals in the uplink channel set, where c is the carrier number, which is the current uplink subframe at the initial transmission time of the uplink channel/signal set. At least simultaneously with the partial transmission of the upstream channel/signal in the upstream channel/signal set that has been power controlled
  • c ' is equal to o.
  • c is the carrier number and i is the subframe number.
  • Method 2 According to the channel/signal priority, the proportional power is reduced for multiple channels/signals with the lowest priority, ie: firstly reduce the power according to the formula (2) to the SRS (if there is SRS), if If there is a non-zero w(i), the power reduction ends, and the target transmit power of PUCCH, PUSCH, and PRACH is maintained as the transmit power after power control; if there is no non-zero w(i) (ie, the SRS power is reduced to 0) If the sum of the transmit powers of the remaining channels exceeds the maximum transmit power allowed by the user equipment, the channel/signal having the second lowest priority needs to be further reduced in proportion, for example, according to formula (3), the PUSCH without UCI is carried.
  • Power control is performed on the uplink channel set on carriers 3, 4, and 5 having the second largest TA according to the order of TA from large to small: Power control requires an uplink channel in the current uplink channel/signal set at the current time. / transmit power of other uplink channels/signals simultaneously transmitted by the signal, and other uplink channels including at least the current uplink subframe
  • the uplink channel/signal of the uplink channel/signal set in the upstream channel/signal set has been transmitted through the power-controlled uplink channel/signal, and/or the previous neighboring subframe of the current uplink subframe has been transmitted at the initial transmission time.
  • Upstream channel/signal where other uplink channels mainly refer to the already-powered uplink channel/signal that is simultaneously transmitted in at least the uplink channel/signal part of the uplink channel/signal set in the current uplink subframe, due to carrier 3,
  • the user equipment determines the transmit power of the PUSCH on the carriers 3, 4, and 5 and the PUCCH and carrier 2 on the carrier 1 at the transmission time. Whether the sum of the transmit powers determined by the PUSCH according to the above steps exceeds the maximum transmit power allowed by the user equipment, 5 CMAX .
  • the PUSCH on carriers 3, 4, and 5 performs power control as follows:
  • Method 1 According to formula (1), the power is reduced in proportion to all channels/signals in the above uplink channel/signal set; that is, there is no SRS and PRACH transmission, and other uplink channels/signals only include the current subframe.
  • the formula (1) is equivalent to The w1 value of the formula is satisfied, so that the transmit power of the PUSCH on the carrier 3 after the power reduction is determined to be puscH W ; the transmit power of the PUSCH on the carrier 4 is ⁇ PUSCH' 4 ( ⁇ ), and the transmit power of the PUSCH on the carrier 5 is ⁇ 3 ⁇ ' 5 ( ⁇ ) and as the actual transmit power;
  • Method 2 According to the channel/signal priority, the proportional power is reduced for multiple channels/signals with the lowest priority, ie: firstly reduce the power according to the formula (2) to the SRS (if there is SRS), if If there is a non-zero w(i), the power reduction ends, and the original transmit power of PUCCH, PUSCH, and PRACH is maintained as the transmit power after power control; if there is no non-zero w(i) (ie, the SRS power is reduced to 0) If the sum of the transmit powers of the remaining channels exceeds the maximum transmit power allowed by the user equipment, the channel/signal having the second lowest priority needs to be further reduced in proportion, for example, according to formula (3), the PUSCH without UCI is carried.
  • the transmit power of PUSCH on carrier 4 is P PUSC 4 0)
  • the transmit power of PUSCH on carrier 4 is ⁇ PUSCH' 5 ( Z ) as the actual transmit power; when judging P pusc ⁇ f) + PpUSCH + PpUSCH , 5 , + PpUCCH , ( 0 + PpUSCH , 2 (0 - ⁇ CMAX (
  • the user equipment simultaneously transmits each uplink channel/signal on different carriers in the subframe i according to the transmission power determined above.
  • the maximum transmit power allowed by the user equipment is replaced by the maximum transmit power allowed by the frequency band, that is, when the five carriers are in the same frequency band, the maximum transmission allowed based on the frequency band may also be used according to the foregoing solution.
  • the power is reduced in power to ensure that the sum of the channel/signal transmission power after the power reduction does not exceed the maximum transmission power allowed by the frequency band; if the UE also works on carriers in other frequency bands, each frequency band can be respectively used based on the above method.
  • the above P SRS O, the same applies.
  • the above method is also applicable to change the carrier or uplink channel/signal type of the uplink channel/signal, for example, the PUSCH is replaced by PUCCH or PRACH or SRS or other uplink channel/signal. Or, the above PUCCH is replaced with a PUSCH or PRACH or SRS or other uplink channel/signal.
  • the method for preferentially controlling the power of the PUCCH in this embodiment is as follows:
  • Step 401 The user equipment determines a target transmit power of each uplink channel/signal of each carrier in the current uplink subframe.
  • Step 402 The user equipment determines that PUCCH transmission exists in the current uplink subframe, and performs power control on the PUCCH preferentially.
  • Step 403 The user equipment determines, according to the order of TA from large to small, that the uplink channel/signal set on the carrier with the largest TA that is not subjected to power control in the current subframe is simultaneously transmitted on at least one symbol of the uplink channel/signal set. Whether the sum of the uplink channel/signal in the current subframe and the transmit power of the uplink channel/signal in the previous adjacent subframe simultaneously transmitted at the initial transmission timing of the uplink channel/signal set exceeds a preset maximum transmit power, If yes, proceed to step 404, otherwise proceed to step 405.
  • Step 404 The user equipment performs power control on the uplink channel/signal set on the carrier that currently has the largest TA, and makes the uplink channel/signal in the current subframe simultaneously transmitted on at least one symbol of the uplink channel/signal set, and The sum of the transmit powers of the uplink channels/signals in the previous adjacent subframe simultaneously transmitted at the initial transmission time of the uplink channel/signal set does not exceed the preset maximum transmit power.
  • Step 405 The user equipment sends each uplink channel/letter in the uplink channel/signal set of the carrier that currently has the largest TA.
  • the target transmission power of the number is taken as the actual transmission power.
  • Step 406 According to the order of the TAs from large to small, the user equipment continues to perform power control on the uplink channel/signal repetition step 403 in the current subframe without power control until the total transmission power of the user equipment is satisfied at any time in the current subframe. Does not exceed the preset maximum transmit power.
  • the user equipment aggregates 4 carriers for uplink transmission. Because the TA is different, the uplink transmission time of carrier 2 is 1 SC-FDMA symbol ahead of carrier 1. The uplink transmission time of carriers 3 and 4 is 1 SC-FDMA after carrier 1 is pushed. Symbol, transmission situation As shown in Figure 5, the specific behavior of the user equipment to determine the transmission power of the channel in subframe i is as follows:
  • the formula for the Background section describes are calculated on the carrier 1 PUCCH transmission power P PUCC 1), the carrier 2 bearing the UCI PUSCH transmit power PpuscH '2 (Z), is not carried UCI on carrier 3
  • the transmit power of the PUSCH is P CMAX I, _P P U CC II , to meet the total transmit power at this time does not exceed the maximum transmit power allowed by the user equipment 5 CMAX .
  • power control needs to be simultaneously transmitted with the uplink channel/signal in the current uplink channel/signal set at the current time.
  • the transmit power of other uplink channels/signals, the other uplink channels include the power-controlled uplink channels/signals that are simultaneously transmitted in at least the uplink symbols of the uplink channel/signal in the uplink channel/signal set, and/or There is a transmitted uplink channel/signal at the initial transmission time in the previous adjacent subframe of the current uplink subframe.
  • the PUSCH has simultaneous transmission on part of the symbols, and its power has been determined to be ⁇ ' 1 ( ⁇ ). Then, the user equipment first compares the transmission powers of the two PUCCHs, and performs power control based on the transmission power of the PUCCH having the largest transmission power. the PUCCH, and further the user equipment determines the transmission timing, having the maximum transmit power, the PUSCH and the carrier on the carrier 24 in the transmission power of the sub-frame i-1 PUSCH to and exceeds a user equipment allowed maximum transmission power P CM AX, when judging (0), the power reduction of the PUSCH on carrier 2 is required.
  • the specific method is as follows:
  • Method 1 The specific scheme is the same as the description in the embodiment shown in FIG. 2 and FIG. 3, and the formula (1) is equivalent to the formula (4), where c is the carrier number, and k is the number of the carrier where the PUCCH is located, which is the current A power-controlled upstream channel/signal that is simultaneously transmitted in at least the uplink channel/signal portion of the uplink channel/signal set in the uplink subframe
  • the sum of the transmit powers (excluding the transmit power of the PUCCH), which is the transmit power of the transmitted uplink channel/signal at the initial transmission time in the previous adjacent subframe (subframe i-1) of the current uplink subframe.
  • the transmit power of the PUCCH that is, there is no SRS and PRACH transmission, and the other uplink channels/signals include the PUSCH on the carrier 4 in the previous subframe, and in the previous subframe and in the current subframe.
  • the power is reduced in proportion to the PUSCH that does not carry the UCI, where j is the number of the PUSCH carrying the UCI, and so on, until the maximum transmit power is satisfied; specifically, there is no SRS and PRACH transmission.
  • the equal power reduction of the PUSCH is performed, and
  • the other uplink channel/signal includes the PUSCH on the carrier 4 in the previous subframe, and the PUCCH in the previous subframe and the larger transmission power in the current subframe.
  • the formula (6) is equivalent to
  • the transmit power of PUSCH is (f) - (j - l ⁇ ) - max (j - l (y) and is taken as the actual transmit power;
  • the transmit power is the actual transmit power, ie (0
  • the user equipment determines to perform power control on the uplink channel set on the carrier with the second largest TA: since only the PUCCH transmission on the carrier 1 exists in the secondary large TA, the transmit power has been determined. , no need to determine again.
  • the terminal determines to perform power control on the uplink channel set on the carrier with the smaller TA:
  • the power control needs to transmit simultaneously with the uplink channel/signal in the current uplink channel/signal set at the current time.
  • the transmit power of the other uplink channel/signal, the other uplink channel includes the power-controlled uplink channel/signal that is simultaneously transmitted with at least the partial symbol of the uplink channel/signal in the uplink channel/signal set in the current uplink subframe, and/ Or there is a transmitted uplink channel/signal at the initial transmission time in the previous adjacent subframe of the current uplink subframe.
  • the PUCCH transmission on the carrier 1 and the PUSCH transmission on the carrier 2 there are both the PUCCH transmission on the carrier 1 and the PUSCH transmission on the carrier 2, and the transmission power thereof is already above. It is determined in the step that the other uplink channel/signal is the PUCCH and the PUSCH on the carrier 1 and the carrier 2 in the current subframe, and the user equipment determines the transmit power of the PUSCH on the carriers 3 and 4 at the transmission time. And whether the sum of the transmit powers determined by the PUCCH on the carrier 1 and the PUSCH on the carrier 2 according to the above steps exceeds the maximum transmit power PcMAX allowed by the user equipment.
  • Method 1 According to formula (4), the power is reduced in proportion to all channels/signals in the above uplink channel/signal set; that is, there is no SRS and PRACH transmission, and other uplink channels/signals only include the current subframe.
  • Upstream The channel, Equation (4) is equivalent to the transmission power of the PUSCH on the rear carrier 3 is puscH ' 3 l) , and the transmission power of the PUSCH on the carrier 4 is puscH ' 4 l) , and is used as the actual transmission power.
  • Method 2 According to the channel/signal priority, the proportional power is reduced for multiple channels/signals with the lowest priority, ie: firstly reduce the power according to the formula (5) to SRS (if there is SRS), if If w(i) is non-zero, the power reduction ends, and the original transmit power of PUCCH, PUSCH, and PRACH is maintained as the transmit power after power control; if there is no non-zero w(i) (ie, the SRS power is reduced to 0) If the sum of the transmit powers of the remaining channels exceeds the maximum transmit power allowed by the user equipment, the channel/signal having the second lowest priority needs to be further reduced in proportion, for example, according to formula (6), the PUSCH without UCI is carried.
  • the power is reduced, and the transmit power calculated according to the power control formula on each carrier is determined as the actual transmit power.
  • the user equipment simultaneously transmits each uplink channel/signal on different carriers in the subframe i according to the transmission power determined above.
  • the maximum transmit power allowed by the user equipment is replaced by the maximum transmit power allowed by the frequency band, that is, when the four carriers are in the same frequency band, the maximum transmission allowed based on the frequency band may also be used according to the foregoing solution.
  • the power is reduced in power to ensure that the sum of the channel/signal transmission power after the power reduction does not exceed the maximum transmission power allowed by the frequency band; if the UE also works on carriers in other frequency bands, each frequency band can be respectively used based on the above method.
  • the maximum transmit power allowed by the frequency band is used for power reduction.
  • the user equipment in this embodiment includes: a power calculation module 601 and a power control module 602.
  • the power calculation module 601 is configured to determine a target transmit power of each uplink channel/signal transmitted in the current uplink subframe.
  • the power control module 602 is configured to: according to the uplink transmission time advance of the uplink carrier where each uplink channel/signal transmitted in the current uplink subframe is located, in the current uplink subframe according to the uplink transmission time advance amount from the largest to the smallest
  • the target transmit power of the transmitted uplink channel/signal is subjected to power control. After the power control is performed, the total transmit power of the user equipment at any time in the current uplink subframe does not exceed the preset maximum transmit power.
  • the power control module 602 determines, according to the order of the uplink transmission time advancement, an uplink channel/signal set that has no power control and has the same uplink transmission time advance quantity, and the uplink channel/signal set includes at least one.
  • the uplink channel/signal according to the transmit power of the other uplink channel/signal simultaneously transmitted with the uplink channel/signal set at the initial transmission time of the uplink channel/signal set, performs the target transmit power of the uplink channel/signal in the uplink channel set.
  • the total transmit power of the user equipment does not exceed the preset maximum transmit power at the initial transmission time, where the total transmit power is the transmit power of each uplink channel/signal in the uplink channel/signal set and The sum of the transmit powers of other upstream channels/signals.
  • the power control module 602 determines whether the sum of the target transmit power of each uplink channel/signal and the transmit power of the other uplink channel/signal in the uplink channel/signal set exceeds a preset maximum transmit power at the initial transmission time;
  • the power control module 602 When it is determined that the preset maximum transmit power is exceeded, the power control module 602 performs power control on the target transmit power of the uplink channel/signal in the uplink channel/signal set to satisfy each uplink in the uplink channel/signal set after power control.
  • the sum of the transmission powers of the channels/signals does not exceed the currently available maximum transmit power, and the currently available maximum transmit power is the preset maximum transmit power minus the transmit power of the other uplink channels;
  • the power control module 602 determines that the target transmit power of each uplink channel/signal in the uplink channel/signal set is the transmit power of each uplink channel/signal after power control.
  • the preferred power control methods are:
  • the power control module 602 performs equal power reduction on the target transmit power of each uplink channel/signal in the uplink channel/signal set to obtain the transmit power of each uplink channel/signal after power control.
  • the power control module 602 progressively performs power reduction for each uplink channel/signal in the uplink channel/signal set from low to high according to channel/signal priority, and targets multiple channels/signals having the same channel/signal priority.
  • the transmit power is equal to the power reduction, and the transmit power of each uplink channel/signal after power control is obtained, wherein for the uplink channel/signal that does not need to reduce power, the target transmit power is determined as the transmit power after power control;
  • the power control module 602 performs equal power reduction on the target transmit power of the uplink channel/signal in the same frequency band in the uplink channel/signal set, and the target transmit power of the uplink channel/signal in different frequency bands in the uplink channel/signal set.
  • the power reduction is performed according to the power reduction ratio low coefficient corresponding to the frequency band, and the transmission power of each uplink channel/signal after power control is obtained.
  • the power control module 602 gradually performs equal power on the target transmit power of the channel/signal in the same frequency band with the same channel/signal priority in the uplink channel/signal set according to the order of channel/signal priority from low to high. Decrease, the target transmit power of the channel/signal in different frequency bands having the same channel/signal priority in the uplink channel/signal set is reduced according to the power reduction ratio coefficient corresponding to the frequency band, and the uplink channel after power control is obtained/ The transmit power of the signal, wherein, for the uplink channel/signal power with a power reduction proportional coefficient of 1, the target transmit power is determined to be the transmit power after power control, and the target transmit power is determined for the uplink channel/signal that does not require power reduction. The power of the transmission after power control.
  • the power control module 602 is further configured to perform priority power control on the target transmit power of the PUCCH or the PRACH according to the following manner:
  • the uplink channel/signal rate controlled transmission power in the previous adjacent subframe does not exist.
  • the power control module 602 determines the target transmit power of the PUCCH or the PRACH and the uplink channel in the previous adjacent subframe.
  • determining the target transmission power of the PUCCH or the PRACH is the transmission power after the PUCCH or the PRACH power control, and gradually stepping forward according to the channel/signal priority
  • the transmit power of the uplink channel/signal in one adjacent subframe is reduced to satisfy the sum of the transmit power of the PUCCH or PRACH at the moment and the transmit power of the uplink channel/signal in the previous adjacent subframe.
  • the preset maximum transmit power is not exceeded; or, if the judgment exceeds, the difference between the preset maximum transmit power and the transmit power of the uplink channel/signal in the previous adjacent subframe is used as the transmit power after PUCCH or PRACH power control.
  • the transmit power of the uplink channel/signal in the subframe is reduced to meet the power reduction, the transmit power of the PUCCH or PRACH at the moment and the transmit power of the uplink channel/signal in the previous adjacent subframe. And not exceeding the preset maximum transmit power; if the judgment is not exceeded, determining that the target transmit power of the PUCCH or the PRACH is the transmit power after the PUCCH or the PRACH power control.
  • the power control module 602 performs the target transmit power of the uplink channel/signal transmitted in the current uplink subframe according to the order of the uplink transmission time advance amount from large to small.
  • priority power control is only performed on target transmit power of a channel having a higher channel/signal priority in PUCCH and PRACH; or a channel having a higher channel/signal priority in the PUCCH and PRACH
  • the target transmit power is subjected to priority power control, and the difference between the preset maximum transmit power and the transmit power with priority channel control of the channel having the higher channel/signal priority is used as the PUCCH and the PRACH.
  • the channel with lower channel/signal priority corresponds to the preset maximum transmit power when performing priority power control, and performs priority power control for channels with lower channel/signal priority.
  • the channel/signal priority is:
  • PUCCH> PRACH> PUSCH carrying UCI> PUSCH SRS not carrying UCI.
  • the other uplink channel/signal includes the power-controlled uplink channel/signal that is simultaneously transmitted with at least the partial symbol of the uplink channel/signal in the uplink channel/signal set in the current uplink subframe, and/or in the upstream channel/signal set At the initial transmission time, there is a transmitted uplink channel/signal at the initial transmission time in the previous adjacent subframe of the current uplink subframe.
  • the power control module 602 is configured to: when there is an uplink channel in the uplink channel/signal set, there is a PUCCH or a PUCCH that is simultaneously transmitted in at least the uplink channel/signal part of the uplink channel/signal set in the current uplink subframe or PRACH, and a PUCCH or PRACH included in the uplink channel/signal set in the previous neighboring subframe, determining that the PUCCH or PRACH included in the other uplink channel is the PUCCH in the current uplink subframe or A PUCCH or a PRACH having a larger transmission power among PUCCHs or PRACHs in the PRACH and the previous neighboring subframe.
  • the preset maximum transmit power includes the maximum transmit power allowed by the user equipment and/or the maximum transmit power allowed for each frequency band.
  • the user equipment performs power control on the target transmit power of the uplink channel/signal transmitted in the current uplink subframe according to the order of the uplink transmission time advancement, in order to satisfy the power control, the user equipment is currently
  • the total transmit power at any time in the uplink subframe does not exceed the preset maximum transmit power, which ensures that the system can work normally.
  • the embodiments of the present invention provide multiple adjustment modes for uplink channels that require power reduction, and are applicable to uplink transmissions with different priorities and/or different frequency bands. And priority to ensure the transmission of PUCCH or PRACH to ensure that the system is positive Work often.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention is in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) in which computer usable program code is embodied.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

La présente invention se rapporte à un procédé adapté pour réguler la puissance sur la liaison montante. Le procédé selon l'invention est utilisé afin d'exécuter une régulation de puissance sur des canaux sur la liaison montante qui ont des temps de transmission différents sur la liaison montante. De cette manière, on peut être certain que la puissance de transmission totale d'un équipement d'utilisateur dans une sous-trame ne dépasse pas un niveau de puissance de transmission maximum et que, partant, le système peut ainsi fonctionner normalement. Le procédé selon l'invention comprend les étapes suivantes : un équipement d'utilisateur détermine la puissance de transmission cible de chaque canal/signal sur la liaison montante, qui est transmis dans la sous-trame sur la liaison montante en cours ; sur la base d'avances temporelles de transmission sur la liaison montante de porteuses sur la liaison montante de chaque canal/signal sur la liaison montante qui est transmis dans la sous-trame sur la liaison montante en cours, en ce qui concerne l'ordre desdites avances temporelles de transmission sur la liaison montante, de l'avance temporelle maximale à l'avance temporelle minimale, ledit équipement d'utilisateur exécute une régulation de puissance de la puissance de transmission cible dudit canal/signal sur la liaison montante qui est transmis dans la sous-trame sur la liaison montante en cours de telle sorte que, une fois la régulation de puissance exécutée, la puissance de transmission totale dudit équipement d'utilisateur dans la sous-trame sur la liaison montante en cours ne dépasse à aucun moment la puissance de transmission maximale. La présente invention se rapporte d'autre part à un dispositif adapté pour mettre en œuvre ledit procédé.
PCT/CN2012/079856 2011-11-17 2012-08-09 Procédé et dispositif de régulation de la puissance sur la liaison montante Ceased WO2013071778A1 (fr)

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CN105393608A (zh) * 2014-07-03 2016-03-09 华为技术有限公司 一种用户设备及功率分配的方法
CN105393608B (zh) * 2014-07-03 2019-04-12 华为技术有限公司 一种用户设备及功率分配的方法
US10440701B2 (en) 2014-07-03 2019-10-08 Huawei Technologies Co., Ltd. User equipment and power allocation method
US20210400693A1 (en) * 2014-10-02 2021-12-23 Qualcomm Incorporated Techniques for managing power on an uplink component carrier transmitted over a shared radio frequency spectrum band
US11889499B2 (en) * 2014-10-02 2024-01-30 Qualcomm Incorporated Techniques for managing power on an uplink component carrier transmitted over a shared radio frequency spectrum band
CN114095996A (zh) * 2015-05-15 2022-02-25 北京三星通信技术研究有限公司 一种上行功率的分配方法和用户设备
WO2020135370A1 (fr) * 2018-12-29 2020-07-02 华为技术有限公司 Procédé et dispositif d'envoi de signaux, et procédé et dispositif de configuration de priorités
US12089167B2 (en) 2018-12-29 2024-09-10 Huawei Technologies Co., Ltd. Signal sending method, priority configuration method, and device

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