WO2012041094A1 - Procédé de réglage de puissance de canal de commande de liaison montante physique et équipement utilisateur - Google Patents

Procédé de réglage de puissance de canal de commande de liaison montante physique et équipement utilisateur Download PDF

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Publication number
WO2012041094A1
WO2012041094A1 PCT/CN2011/076549 CN2011076549W WO2012041094A1 WO 2012041094 A1 WO2012041094 A1 WO 2012041094A1 CN 2011076549 W CN2011076549 W CN 2011076549W WO 2012041094 A1 WO2012041094 A1 WO 2012041094A1
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WIPO (PCT)
Prior art keywords
uplink control
control channel
physical uplink
power
format
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PCT/CN2011/076549
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English (en)
Chinese (zh)
Inventor
朱鹏
喻斌
戴博
杨维维
梁春丽
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中兴通讯股份有限公司
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Publication of WO2012041094A1 publication Critical patent/WO2012041094A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets

Definitions

  • the present invention relates to a power control technology for a mobile communication system, and more particularly to a power setting method for a physical uplink control channel and a user equipment.
  • uplink power control In the Long Term Evolution (LTE) system of the 3rd Generation Partnership Project (3GPP), uplink power control (uplink power control) is used to control the uplink physical channel ( Uplink Physical Channel) transmit power to compensate for channel path loss and shadow fading and to suppress inter-cell interference.
  • the uplink physical channel of the uplink power control control includes a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and a sounding reference signal (SRS).
  • PUSCH physical uplink shared channel
  • PUCCH physical uplink control channel
  • SRS sounding reference signal
  • the power control uses a combination of an open loop and a closed loop.
  • the transmit power of the PUCCH of the User Equipment (UE) on the i-th subframe (subframe I) is defined by the following formula (1) (in dBm):
  • each parameter represents: (1) P CMAX is the UE setting UE maximum configured output power (the Configured Maximum
  • the value of the UE output power is determined by a plurality of parameters, including: the maximum UE power determined by the UE power class, and the maximum configured power of the system (IE P- Max), maximum configuration output power deviation (PCMAX tolerance), maximum power reduction (MPR), and maximum power reduction (A-MPR).
  • P. PUCCH is an open loop power control parameter, which is a cell specific corpse.
  • P is the Downlink Pathloss Estimate measured and calculated by the UE;
  • ⁇ ⁇ PUCCH ( ) is a power offset associated with PUCCH format F ( PUCCH format( )).
  • PUCCH format( ) PUCCH format( )
  • six PUCCH formats are defined, which are respectively PUCCH format l/la/lb/2/2a/2b.
  • the power offset A F PUCCH ( ) is based on the PUCCH format la (the power offset of the reference format) Set to 0) defined and configured by the upper layer, as shown in Table 1.
  • h ⁇ n is a value based on the PUCCH format F, where " ce is the number of information bits of the Channel Quality Indicator (CQI), and n is the Hybrid Automatic Repeat Request (HARQ). The number of HARQ bits.
  • CQI Channel Quality Indicator
  • HARQ Hybrid Automatic Repeat Request
  • TDD Time Division Duplex
  • the values of M and ⁇ are related to the system's uplink-downlink configurations.
  • the power control adjustment state (ie, the current power control adjustment state) of the PUCCH on the subframe I is the power control adjustment state on the subframe Z-1 and the subframe /_ ⁇ , /- ⁇
  • g(/) g(/- 1).
  • the transmit power control command PUCCH is a UE-specific (UE specific) closed-loop correction value, and is sent by the base station to the target UE through a Physical Downlink Control Channel (PDCCH).
  • PDCH Physical Downlink Control Channel
  • the PUCCH is used to carry Uplink Control Information (UCI), and the UCI includes a Scheduling Request (SR) and a Hybrid Automatic Repeat Request (HARQ) response message of the Physical Downlink Shared Channel (PDSCH). , including: acknowledgement (ACK) response or nonacknowledgment (NACK) response, and downlink channel state information fed back by the UE (Channel State Information, CSI).
  • CSI includes three forms: Channel Quality Indication (CQI), Precoding Matrix Indicator (PMI) and Rank Indication (RI).
  • the LTE-Advanced (LTE-A) system is the next-generation evolution system of the LTE system.
  • the LTE-A system uses carrier aggregation technology to extend the transmission bandwidth.
  • Each aggregated carrier is called a Component Carrier (CC), also known as a "cell".
  • Cell Cell
  • Multiple component carriers may be contiguous or non-contiguous; they may be in the same frequency band or in different frequency bands.
  • CC Component Carrier
  • Multiple component carriers may be contiguous or non-contiguous; they may be in the same frequency band or in different frequency bands.
  • the prior art proposes that in an LTE-A system, a user equipment can simultaneously receive multiple PDSCHs on multiple configured or activated component carriers.
  • the multiple ACK/NACK of the PDSCH is transmitted on one UE-specific (UE specific) component carrier through a PUCCH.
  • the UE-specific component carrier is called a Primary Component Carrier (PCC), and is also called a Primary Cell (Pcell).
  • the ⁇ in the equation (1) is the configured UE transmitted power for the primary cell.
  • PUCCH format 3 also referred to as the third PUCCH format
  • the LTE-A system aggregates up to 5 component carriers. If the UE needs to feed back ACK/NACK for each PDSCH, l ⁇ 2 bits (each PDSCH can carry 1 ⁇ 2 Transport Blocks (TB), each transport block. Need to feedback lbit ACK/NACK), PUCCH format 3 ACK/NACK to be carried is l ⁇ 10bits.
  • the PUCCH format 3 further includes the lbit scheduling request information SR, the amount of information to be carried by the PUCCH format 3 is l ⁇ l lbits.
  • the user equipment uses PUCCH format 3 to send uplink control information is configured by a higher layer.
  • PUCCH format 3 and PUCCH format l/la/lb/2/2a/2b can carry different amounts of information, different coding modes, and different channel structures and channelization modes. For example, before generating a Single Carrier-Frequency Division Multiple Access (SC-FDMA) signal in the time domain, unlike PUCCH format l/la/lb/2/2a/2b, PUCCH format 3 is also performed.
  • SC-FDMA Single Carrier-Frequency Division Multiple Access
  • the encoding (transformation precoding), and thus the SC-FDMA signal generated by the PUCCH format 3 is also referred to as a Discrete Fourier Transform-Spread-OFDM (DFT-S-OFDM) signal based on Fourier transform extension.
  • DFT-S-OFDM Discrete Fourier Transform-Spread-OFDM
  • An object of the present invention is to provide a method for setting a power of a physical uplink control channel and a user equipment to solve the problem that the prior art cannot set a corresponding transmission power for a third physical uplink control channel format.
  • the present invention provides a method for setting a power of a physical uplink control channel, where the method includes: the uplink control information sent by the user equipment for using the third physical uplink control channel format, according to the physical uplink control channel reference.
  • the power offset of the format determines the power offset of the third physical uplink control channel format, and sets the transmit power of the physical uplink control channel.
  • the physical uplink control channel reference format includes any one of a first physical uplink control channel format, a second physical uplink control channel format, and a third physical uplink control channel format, where: the first physical uplink control channel format includes Physical uplink control channel format 1, physical uplink control channel format la, and physical uplink control channel format lb;
  • the second physical uplink control channel format includes a physical uplink control channel format, a physical uplink control channel format 2a, and a physical uplink control channel format 2b.
  • the power reference quantity of the physical uplink control channel reference format is that the physical uplink control channel format la is a power reference quantity of the physical uplink control channel reference format.
  • Said P. – PUOTI is an open loop power control parameter equal to the cell specific amount P. — N . MNAL PUOTI and user equipment specific amount P. ⁇ PueeH sum;
  • the P is a downlink path loss estimate measured and calculated by the user equipment to the serving cell, where the serving cell is configured by a higher layer; or the downlink path loss estimate measured and calculated by the user equipment to the primary cell
  • the downlink path loss estimation unit is dB; and the g (0 is a current power control adjustment state of the physical uplink control channel;
  • the A F_PUCCH includes: according to the information quantity carried by the third physical uplink control channel format, “two or more sets of power offset values ⁇ ⁇ — PUCCH (in association with a threshold value or a plurality of threshold values) F) the user equipment determines, according to the information quantity n carried by the third physical uplink control channel format, a corresponding set of power offset values A F — PU ⁇ H (F), and sets the group Power offset value
  • a F - PUCCH (F) set is reported to the upper layer; and the upper layer configures a fixed offset value in the set of power offset values A F - PUCCH (F) to be reported as the corresponding fixed offset.
  • the power reference quantity of the physical uplink control channel reference format is that the third physical uplink control channel format is a power reference quantity of the physical uplink control channel reference format.
  • Said P. – PUOTI is an open loop power control parameter equal to the cell specific amount P. — N . MNAL PUOTI and user equipment specific amount P. ⁇ PueeH sum;
  • the P is a downlink path loss estimate measured and calculated by the user equipment to the serving cell, where the serving cell is configured by a higher layer; or the downlink path loss estimate measured and calculated by the user equipment to the primary cell
  • the downlink path loss estimation unit is dB;
  • the g (0 is a current power control adjustment state of the physical uplink control channel;
  • the power offset of the third physical uplink control channel format determined by the power reference quantity of the physical uplink control channel reference format includes a variable offset, and the variable offset is configured by the high layer through the lookup table.
  • the manner is determined, or determined by a function of the amount of information that depends on the physical uplink control channel carrying the uplink control information.
  • the variable offset is determined by a function that depends on an amount of information that the physical uplink control channel carries uplink control information, and the function includes any one of the following functions: if n ⁇ k
  • the k is any one of 2, 4, 6, 8 and 10;
  • the / is the number of information bits indicated by the channel quality
  • the ⁇ is the number of information bits of the hybrid automatic repeat request
  • the number of information bits of the hybrid automatic repeat request is the number of information bits of the scheduling request.
  • the method further includes: determining a maximum transmit power P CMA3 ⁇ 4 configured on the primary cell; and setting a transmit power of the physical uplink control channel, the user equipment according to the next step Extracting the transmit power of the physical uplink control channel, and then performing the setting:
  • the ⁇ 3 ⁇ 4 is a power reference quantity of the physical uplink control channel reference format, and the unit is dBm;
  • the AP PUCCH is a power offset of a third physical uplink control channel format based on a power reference quantity of a physical uplink control channel reference format, where the unit is dBm; and the min ⁇ ⁇ is a minimum value calculation symbol;
  • the ⁇ (:(: ⁇ W is the obtained transmit power value of the physical uplink control channel, and the unit is dBm.
  • the present invention further provides a user equipment, where the user equipment includes a power reference quantity acquisition unit, a power offset determination unit, and a power setting unit, wherein: the power reference quantity acquisition unit is configured to: calculate a power reference quantity Ppu (xHref) of the physical uplink control channel reference format, and acquire the / ⁇ output to the power offset determination single L;
  • the power offset determining unit is configured to: determine a power offset AP PUCCH of the third physical uplink control channel format based on the input P pua3 ⁇ 4ref , and obtain the P pU (XH ref and the ⁇ And output to the power setting unit;
  • the power setting unit is configured to: set a transmit power of the physical uplink control channel according to the sum of the input P pua3 ⁇ 4ref and the AP PUCCH .
  • the physical uplink control channel reference format includes any one of a first physical uplink control channel format, a second physical uplink control channel format, and a third physical uplink control channel format;
  • the first physical uplink control The channel format includes a physical uplink control channel format 1, a physical uplink control channel format la, and a physical uplink control channel format lb;
  • the second physical uplink control channel format includes a physical uplink control channel format 2, a physical uplink control channel format 2a, and a physical Upstream control channel format 2b.
  • the power reference quantity obtaining unit is configured to calculate a power reference quantity p pU (XH ref : the physical uplink control channel format la is the physical uplink)
  • the power reference quantity P pua3 ⁇ 4ref of the control channel reference format is calculated according to the following formula to obtain the power reference quantity P puecH ref of the physical uplink control channel reference format:
  • Said P. – PUOTI is an open loop power control parameter equal to the cell specific amount P. — N . MNAL PUOTI and user equipment specific amount P. ⁇ PueeH sum; is the downlink path loss estimate measured and calculated by the user equipment to the serving cell; or the downlink path loss estimate measured and calculated by the user equipment to the primary cell; the downlink path loss estimation unit is dB; G (0 is the current power control adjustment state of the physical uplink control channel;
  • the power offset AP pueeH of the physical uplink control channel format includes: a fixed offset pueeH (F) and/or a variable offset / wherein: the fixed offset ⁇ ⁇ - pueeH (F) is a default value, a configuration value And determining, according to a plurality of fixed offset values ⁇ ⁇ — PUCCH (F) set related to the amount of uplink control information information carried by the physical uplink control channel, a corresponding one of the fixed offset sets;
  • the variable offset / ⁇ «;) is determined by means of a look-up table, or by a function of the amount n of information that carries uplink control information depending on the physical uplink control channel.
  • the power reference quantity obtaining unit is configured to calculate a power reference quantity P PU (XH ref : the third physical uplink control channel format is the physical medium)
  • the power reference quantity P pua3 ⁇ 4ref of the uplink control channel reference format is used to calculate the power reference quantity P pueCT ref of the physical uplink control channel reference format according to the following formula:
  • Said P. – PUOTI is an open loop power control parameter equal to the cell specific amount P. — N . MNAL PUOTI and user equipment specific amount P. ⁇ PueeH sum; the P is a downlink path loss estimate measured and calculated by the user equipment to the serving cell, or the PL is a downlink path loss estimate measured and calculated by the user equipment to the primary cell; the downlink path loss estimation unit is dB; and the g (0 is the current power control adjustment state of the physical uplink control channel;
  • the power offset AP pueeH bias power determining unit determines based on the input P pua3 ⁇ 4ref third physical uplink control channel format comprising: a Variablely biasing the variable offset/determined by means of table lookup, or determined by a function depending on the amount of information of the physical uplink control channel carrying uplink control information n.
  • the number of information bits of the hybrid automatic repeat request is the number of information bits of the scheduling request.
  • the user equipment further includes a primary cell maximum power configuration unit, where: the primary cell maximum power configuration unit is configured to: determine a maximum transmit power MAX configured on the primary cell, and output the power to the power setting unit;
  • the power setting unit is set to be input as described.
  • P PU the minimum value of XH ref and sum as the transmit power setting of the physical uplink control channel.
  • the present invention can provide multiple schemes for setting the physical uplink control channel transmission power for the PUCCH format 3 when the user equipment uses the PUCCH format 3 to send the uplink control information, thereby ensuring reliable transmission of the uplink control information of the physical uplink control channel.
  • FIG. 1 is a schematic diagram of carrier aggregation of an LTE-A system in the prior art
  • FIG. 2 is a flowchart of a power setting method of a physical uplink control channel according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram of a user equipment for setting a PUCCH transmission power for a third PUCCH format according to an embodiment of the present invention.
  • the power setting method of the physical uplink control channel provided by the embodiment of the present invention includes:
  • the user equipment uses, according to the uplink control information sent by using the third physical uplink control channel format, the power offset of the third physical uplink control channel format determined according to the power reference quantity of the physical uplink control channel reference format, and sets the physical uplink control channel. Transmit power.
  • the physical uplink control channel (PUCCH) reference format includes: PUCCH format la, any other PUCCH format listed in Table 1, and any one of the third physical uplink control channel format (PUCCH format 3)
  • the PUCCH reference format is any one of PUCCH format 1 a and other PUCCH format (F) that bears fixed 1-bit or 2-bit uplink control information, or carries 1-bit or 2-bit uplink control information.
  • the power reference quantity P pua3 ⁇ 4ref ( ) of the PUCCH reference format is calculated and obtained by the following formula (2) (in dBm): (2) In equation (2),
  • ⁇ 0_PUCCH is an open loop power control parameter, which is the sum of the parameter ⁇ o_NO M NAL_PUCCH and the parameter ⁇ 0_UE_PUCCH;
  • PL is the downlink path loss estimate measured and calculated by the user equipment (UE);
  • a F — PUCCH (F) is a default value, a value configured by a higher layer, and any one of a plurality of value sets related to an amount of uplink control information information carried by the PUCCH; / ⁇ «;) is determined by the high-level configuration by looking up the table, or by a function depending on the amount of information of the PUCCH carrying the uplink control information.
  • the transmission power of the PUCCH is obtained by the following formula (3) (in dBm): PUCCH (0 - ⁇ CMAX,c, t ⁇ PUCCH, ref + ⁇ PUCCH ] ⁇ ( 3 ) 3),
  • the configured UE transmitted power for the primary cell value, in units of dBm, configured by the UE on the primary cell (primary component carrier);
  • P PU o ref is a power reference quantity value of the physical uplink control channel reference format given by the formula ( 2 ), and the unit is dBm;
  • ⁇ ⁇ ⁇ is the power offset value of the third PUCCH format based on the power reference amount of the PUCCH reference format, and the unit is dBm; min ⁇ ⁇ is the minimum value calculation symbol;
  • P PU « H W is the calculated transmit power value of the acquired PUCCH in dBm.
  • the acquisition and setting of the transmission power is calculated according to the formula (3).
  • the flow of this embodiment is shown in FIG. 2 . Including the following steps:
  • 210 Determine a maximum transmit power P CMA3 ⁇ 4 configured by the UE on the primary cell; 220: calculate a power reference quantity P pU (XH ref ; of the PUCCH reference format).
  • the PUCCH reference format is selected as PUCCH format la; calculated according to the above formula (2).
  • AP PUCCH A F - PUCCH (F), that is, the variable offset / is 0.
  • a F PUCCH (F) is defined relative to format la, which can be configured by a higher layer, for example, the high layer signaling of A F PUCCH ( ) is 2 bits.
  • the power offset is related to the information amount of the uplink control information carried by the PUCCH.
  • the LTE-A system presets a plurality of value sets of A F — PUCCH (F) according to the information amount of the uplink control information carried by the PUCCH format 3, and respectively corresponds to different information amount ranges. Setting the transmit power of the PUCCH for PUCCH format 3, the UE according to the PUCCH format
  • the amount of information carried by the 3 determines the corresponding set of values of A F — PUCCH (F), and then one of the higher layers configures one of the values as a power offset.
  • the LTE-A system presets two sets of power offset values according to whether the information amount M carried by the PUCCH format 3 is greater than a threshold value k (bits), as shown in Table 2, and assumes 2, 4, 6, and 8 , any of the values of 10.
  • the LTE-A system presets three sets of power offset values according to different ranges in which the information amount M carried by the PUCCH format 3 is located. table 3
  • ki is set to any two of 2, 4, 6, 8, 10, 12, 14, 16 respectively;
  • the UE determines a set of values of the corresponding ⁇ ⁇ PUCCH (F) from a preset set of multiple sets of power offset values, and reports the set of values to the upper layer, and the upper layer selects a value from the set of values. For the final determined power offset.
  • the transmission power is obtained and set according to the formula (3).
  • the flow of this embodiment is shown in FIG. 2 .
  • the only difference from the first embodiment is the step 230. Determine the power offset of PUCCH format 3 — AF—PUCCH ( ) based on the calculated power reference.
  • the A F PUCCH (F) is still defined with respect to the format la, that is, the A F PUCCH (F) in this embodiment still uses the PUCCH format la as the PUCCH reference format, which is configured by the upper layer, and its value set is as shown in the table.
  • the high layer signaling for configuring the ⁇ ) is 2 bits.
  • the PUCCH format 3 is a value related to the amount of information about the uplink control information carried by the UE.
  • the related variable variable offset that is, the function of the information quantity, the value that the UE can determine by means of table lookup; or, the UE according to The value calculated by the formula (4), and the formula (5) or the formula (6).
  • ce is the number of information bits of the channel quality indicator (CQI), "leak.”
  • CQI channel quality indicator
  • HARQ hybrid automatic repeat request
  • h(n) h[n SR ,n l HARQ k (6)
  • Step 220 Calculate the obtained power reference quantity by using PUCCH format 3 as the PUCCH reference format.
  • the format 3 is a function of the amount of information about the uplink control information carried by the UE, the power variable offset, that is, the amount of information, and the value that the UE can determine by means of a table lookup; or, the UE according to the formula (4)
  • the values calculated by Equation (5) or (6) are not described here.
  • the amount of information carried by the PUCCH is 6 bits.
  • the ACK/NACK response information of the hybrid automatic repeat request HARQ carried by the UE is received on the subframe 1-4.
  • the ACK/NACK response information of the hybrid automatic repeat request HARQ carried by the UE is in the subframe ik for the UE. , ik ', ik M — ⁇ received PDSCH; where, and M are determined by the Uplink-downlink configurations of the TDD system, as shown in Table 5.
  • the number of hybrid automatic retransmission request bits is calculated as follows:
  • ⁇ is the maximum number of transport blocks that the UE can carry on the PDSCH transmitted on the component carrier c, which is Determined by the downlink transmission mode of the component carrier, the downlink transmission mode of the component carrier is configured by a higher layer;
  • C is a configured component carrier set or an activated component carrier set of the UE.
  • a certain UE is currently configured or activated with three downlink component carriers.
  • the downlink transmission mode of the three downlink component carriers is a single antenna transmission mode, and the number of hybrid automatic retransmission request bits is 3; if the downlink transmission modes of the three downlink component carriers are all multi-antenna transmission modes, hybrid automatic retransmission
  • the number of request bits is ⁇ 6.
  • a UE is currently configured or activated with two component carriers. If the downlink transmission mode of two component carriers is a single antenna transmission mode, the number of hybrid automatic retransmission request bits is n. 2; If the downlink transmission mode of one of the component carriers is the single antenna transmission mode and the other is the multi-antenna transmission mode, the number of hybrid automatic retransmission request bits is 3
  • the number of hybrid automatic repeat request bits is ".
  • the number of hybrid automatic repeat request bits is ⁇ the number of component carriers configured or activated by the UE.
  • the number of hybrid automatic retransmission request bits is "4."
  • the number of hybrid automatic retransmission request bits is ⁇ .
  • HARQ ⁇ HARQ, c ' VO where, is the hybrid automatic retransmission request bit number of the component carrier c. n
  • the rule of the HARQ m TE system is determined.
  • the number of hybrid automatic repeat request bits is the total number of transport blocks received by the UE in one subframe. For example, a certain UE currently configures or activates three downlink component carriers. If the UE receives a PDSCH transmitted on one downlink component carrier in one subframe, and the PDSCH carries two transport blocks, the subframe The number of hybrid automatic repeat request bits is determined to be 2; if the UE receives the PDSCH transmitted on two downlink component carriers in one subframe, one PDSCH carries 2 transport blocks, and the other PDSCH carries 1 For each transport block, the subframe is automatically mixed with the number of retransmission request bits ⁇ R . Determined to be 3.
  • the present invention is directed to the foregoing method embodiments, and correspondingly provides a user equipment embodiment for setting a corresponding transmit power for a third physical uplink control channel format.
  • the structure of the user equipment is as shown in FIG. 3, and includes: a power reference quantity obtaining unit 310, a power offset determining unit 320, and a power setting unit 330, where: the power reference quantity acquiring unit 310 is configured to: calculate the power of acquiring the PUCCH reference format.
  • the reference quantity p pU(XH ref , and the obtained p pU (XH ref is output to the power offset determination unit 320;
  • the power reference quantity acquisition unit 310 is set to: calculate the acquisition ⁇ according to the formula (2), before the specific calculation As mentioned, it will not be repeated here.
  • the power offset determining unit 320 is configured to: determine the power offset AP PUCCH of the PUCCH format 3 based on the input P PU (XH ref , and obtain p pU (the sum of the XH ref and the AP PUCCH is output to the power setting unit 330; the power offset
  • the determining unit 320 may determine the power offset AP PUCCH of the PUCCH format 3 according to the foregoing method embodiment 1, the second embodiment, and the third embodiment, and how to determine the foregoing is specifically described herein, and details are not described herein again.
  • the power setting unit 330 is set to: according to the sum of the input P PUCCH ref and the AP PUCCH , The transmit power of the PUCCH.
  • the user equipment embodiment shown in FIG. 3 further includes a primary cell maximum power configuration unit 300, where: the primary cell maximum power configuration unit 300 is configured to: determine a maximum transmit power MAX configured on the primary cell, and output the power to the power setting unit 330.
  • the power setting unit 330 is configured to set the input parameter and p pU (the minimum value of the sum of XHref and ⁇ as the PUCCH transmission power setting.
  • each module unit in the above embodiments may be implemented in the form of hardware or in the form of a software function module.
  • the invention is not limited to any specific combination of hardware and software. The description is only for the embodiments of the present invention, and is not intended to limit the present invention. The present invention is susceptible to various modifications and alternatives, and all modifications, equivalents, improvements, etc., within the spirit and scope of the invention are intended to be included within the scope of the appended claims.
  • the present invention can provide various schemes for setting the physical uplink control channel transmission power for the PUCCH format 3 when the user equipment uses the PUCCH format 3 to transmit the uplink control information, thereby ensuring reliable transmission of the uplink control information of the physical uplink control channel. .

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  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur un procédé de réglage de puissance de canal de commande de liaison montante physique (PUCCH) et un équipement utilisateur, l'équipement utilisateur comprenant une unité d'acquisition de valeur de référence de puissance, une unité de détermination de décalage de puissance et une unité de réglage de puissance. L'unité d'acquisition de valeur de référence de puissance est configurée pour effectuer des calculs et acquérir la valeur de référence de puissance P PUCCH,ref du format de référence PUCCH, et pour délivrer la valeur P PUCCH,ref acquise à l'unité de détermination de décalage de puissance. L'unité de détermination de décalage de puissance est configurée pour déterminer le décalage de puissance ΔP PUCCH du format 3 PUCCH sur la base de l'entrée, et pour obtenir la somme de la valeur P PUCCH,ref et de la valeur ΔP PUCCH et délivrer la somme à l'unité de réglage de puissance. L'unité de réglage de puissance est configurée pour régler la puissance d'émission du PUCCH conformément à la somme de la valeur P PUCCH,ref et de la valeur ΔP PUCCH appliquée en entrée. L'invention assure une transmission fiable des informations de commande de liaison montante du PUCCH.
PCT/CN2011/076549 2010-09-30 2011-06-29 Procédé de réglage de puissance de canal de commande de liaison montante physique et équipement utilisateur WO2012041094A1 (fr)

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CN102045827B (zh) 2011-01-06 2013-07-31 大唐移动通信设备有限公司 上行功率控制方法、功率控制参数配置方法及其装置
CN102740433B (zh) 2011-04-02 2017-06-13 中兴通讯股份有限公司 一种物理上行控制信道的功率控制方法和装置
CN102790740B (zh) * 2011-05-19 2015-04-01 上海中兴软件有限责任公司 一种获取物理上行控制信道信号功率的方法及装置
CN102821449A (zh) * 2011-06-08 2012-12-12 中兴通讯股份有限公司 一种上行信号发射功率削减的方法和装置
CN103313368B (zh) * 2012-03-16 2018-12-04 中兴通讯股份有限公司 物理上行控制信道的功率控制方法及用户设备
WO2015168950A1 (fr) * 2014-05-09 2015-11-12 华为技术有限公司 Équipement utilisateur (ue), station de base et procédé pour coordonner une puissance de liaison montante
WO2017049744A1 (fr) * 2015-09-25 2017-03-30 华为技术有限公司 Procédé et appareil de régulation de puissance pour canal de commande de liaison montante
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CN109391351B (zh) * 2017-08-10 2021-04-02 电信科学技术研究院 一种物理上行控制信道pucch的功率控制方法和基站
CN109803364B (zh) * 2017-11-17 2021-01-22 电信科学技术研究院有限公司 一种上行功率控制方法及移动通信终端
KR102289794B1 (ko) * 2017-11-17 2021-08-12 차이나 아카데미 오브 텔레커뮤니케이션즈 테크놀로지 업링크 전력 제어 방법 및 이동 통신 단말
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