WO2015139360A1 - Équipement utilisateur (ue), dispositif côté réseau, procédé de réglage de puissance et procédé de détermination de sg - Google Patents

Équipement utilisateur (ue), dispositif côté réseau, procédé de réglage de puissance et procédé de détermination de sg Download PDF

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Publication number
WO2015139360A1
WO2015139360A1 PCT/CN2014/076868 CN2014076868W WO2015139360A1 WO 2015139360 A1 WO2015139360 A1 WO 2015139360A1 CN 2014076868 W CN2014076868 W CN 2014076868W WO 2015139360 A1 WO2015139360 A1 WO 2015139360A1
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WIPO (PCT)
Prior art keywords
power
margin
tfc
load
side device
Prior art date
Application number
PCT/CN2014/076868
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English (en)
Chinese (zh)
Inventor
赵悦莹
马雪利
汪凡
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201480001002.0A priority Critical patent/CN105309015A/zh
Publication of WO2015139360A1 publication Critical patent/WO2015139360A1/fr

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Classifications

    • 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
    • H04W52/362—Aspects of the step size

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a UE, a network side device, a power adjustment method, and an SG determining method. Background technique
  • the system is a user equipment (UE: User Equipment)? I enter a new carrier, which is similar to the secondary carrier of DC-HSUPA (Dual Cell High Speed Uplink Packet Access).
  • UE User Equipment
  • DC-HSUPA Dual Cell High Speed Uplink Packet Access
  • TDM Time division multiplexing
  • the second secondary carrier technology has the advantage that only one or a few UEs transmit data at the same time, which greatly reduces the multiple access interference between UEs.
  • one UE can occupy higher load resources within one Transmission Time Interval (TTI), the UE can perform high-speed data transmission.
  • TTI Transmission Time Interval
  • WCDMA Wideband Code Division Multiple Access
  • uplink UE transmission is performed by scheduling, and the base station is based on the measured signal to noise ratio of the UE's dedicated physical control signal (DPCCH: Dedicated Physical Control Channel).
  • DPCCH dedicated Physical Control Channel
  • SG Serving Grant
  • the UE Before the UE starts to send E-DCH Enhanced: Dedicated Channel data, it will send a DPCCH power control prefix for a period of time for channel quality synchronization.
  • the switch when the UE switches, the switch is made to The new UE may not have the DPCCH power control prefix, so the base station cannot determine the initial power used by the UE to start transmitting until the base station receives the DPCCH sent by the UE and estimates the signal to interference ratio (SIR: Signal to Interference Ratio) of the DPCCH.
  • SIR Signal to Interference Ratio
  • the comparison result with the target signal interference ratio SIRt results in a power control command word, which is sent to the UE for reception by the downlink, and the UE receives the power control command word and adjusts the transmission power of the UE by using the power step included in the power command word.
  • the embodiment of the invention provides a power adjustment method, a service authorization SG determining method and a user equipment, to more accurately adjust the transmission power of the UE.
  • an embodiment of the present invention provides a user equipment (UE), including: a processor, configured to determine a first power step, and use the first power step to transmit power of a dedicated physical control channel DPCCH of the UE. Adjusting from the initial power to the first transmit power; and determining a second power step different from the first power step, and using the second power step to transmit the DPCCH transmit power by the first The power is adjusted to the second transmit power; the transmitter is connected to the processor, and configured to send data to the network side device by using the first transmit power and/or the second transmit power.
  • UE user equipment
  • the UE further includes: a receiver, connected to the processor, configured to receive power remaining by the network side device before determining the first power step
  • the processor is further configured to: acquire a reference power, and determine the initial power according to the reference power and the power margin.
  • the DPCCH is configured with a primary carrier and a secondary carrier, and the reference power is specifically: a current power of the primary carrier or a downlink pilot power of the secondary carrier.
  • the receiver is specifically configured to: receive a power control command word sent by the network side device, where the power control command word includes the first
  • the processor is configured to: obtain the first power step from the receiver; or the processor is specifically configured to: use an absolute amount of power margin sent by the network side device The quotient obtained after dividing the value by n is determined as the first power step, and the n is a preset value.
  • the processor is specifically configured to: quantize the first power step to obtain the quantized first power Step size.
  • the n is specifically: the UE firstly uses the service authorization SG The number of delay slots for transmitting the dedicated channel-specific physical data channel E-DPDCH data, or the number of slots of the DPCCH prefix when the DPCCH is discontinuously transmitted, or the number of slots of the DPCCH prefix when the DPCCH is discontinuously transmitted and fixed. The sum of the number of slots.
  • the receiver is further configured to: receive a power control command word sent by the network side device, where the power control command word includes the second
  • the power step is configured to: acquire the second power step from the receiver.
  • an embodiment of the present invention provides a network side device, including: a processor, configured to determine a power control command word including a power lifting instruction; a transmitter connected to the processor, configured to include the power The power control command word of the lifting instruction is sent to the user equipment UE, so that the UE adjusts the dedicated physical control channel DPCCH transmission power of the UE from the initial power to the first transmission according to the power lifting instruction and the first power step
  • the processor is further configured to: determine a power control command word that includes a second power step; the transmitter is further configured to: send a power control command word that includes the second power step to a user
  • the UE is configured to adjust, by the second power step, the first transmit power to the second transmit power, where the first power step and the second power step are different.
  • the processor is further configured to: determine the first power step; the transmitter is further configured to: include the first power step And the power control command word of the power up and down command is sent to the UE, so that the UE combines the second aspect by using the first work, and in a second possible implementation manner, the processor is further For determining: a power headroom used by the UE; the transmitter is further configured to: send the power headroom to the UE, so that the UE according to the obtained reference power and the power remaining The amount determines the initial power.
  • an embodiment of the present invention provides a user equipment (UE), including: a receiver, configured to receive a target signal interference ratio sent by a network side device and a total control channel power margin C/P available to the UE; And connected to the receiver, configured to determine a service authorization SG of the UE according to at least the device and the C/P.
  • UE user equipment
  • the receiver is further configured to: receive, by the network side device, a location that is sent by the network side device, before determining the SG according to the at least the C/P The available network load of the UE; the processor is specifically configured to: at least according to the
  • the processor is specifically configured to: based on the WR ⁇ w, the load, the C/P, and a formula :
  • the receiver is further configured to: load and the C/P according to at least the 5 ⁇ Before determining the SG, receiving a power headroom power-margin sent by the network side device; the processor is specifically configured to: according to the 5 ⁇ 3 , the load, the C/P, and the The power_margin determines the SG.
  • the processor is specifically configured to: based on the WR ⁇ w, the load, the C/P, the power_margin, and a formula: ⁇ Load,
  • the processor is specifically configured to: based on the WR ⁇ w, the load, the C/P, the Power-margin and formula:
  • the receiver is further configured to: receive, by the network side device, a device that is sent by the network side device, before determining the SG according to the at least the C/P An available network load factor ⁇ of the UE; the processor is specifically configured to: at least
  • the processor is specifically configured to: based on the WR ⁇ w, the C/P, and the ⁇ and a formula :
  • the receiver is further configured to: at least based on the 5 ⁇ a r, the C/P, and the Before determining the SG, receiving a power headroom power-margin sent by the network side device, where the processor is specifically configured to: based on the 5 ⁇ a , the C/P, the ⁇ and The power_margin determines the SG.
  • the processor is specifically configured to: pass the ⁇ rgw, the c/P, the ⁇ , and the Power_ margin And the formula: 1 - ⁇ determines the SG.
  • the processor is specifically configured to: Said ⁇ rgw, the c / P, the ⁇ and the power_ margin and the formula:
  • an embodiment of the present invention provides a network side device, including: a processor, configured to determine a total control channel power margin C/P that is available to the UE by a target signal interference; and a transmitter connected to the processing And sending the C/P to the UE, so that the UE determines the service authorization SG of the UE by using at least the device and the C/P.
  • the processor is further configured to: determine an available network load of the UE, where the transmitter is further configured to: send the load to the UE, to make the UE The C/P and the Load determine the SG.
  • the processor is further configured to: determine a power headroom power-margin; the transmitter is specifically configured to: The power headroom power-margin is sent to the UE, so that the UE determines the SG according to the ⁇ , the load, the C/P, and the power_margin.
  • the processor is further configured to: determine an available network load factor ⁇ of the UE; the transmitter is further configured to: send the ⁇ to The UE, to enable the UE to determine the SG based on at least the C, P, and the ⁇ .
  • an embodiment of the present invention provides a user equipment (UE), including: a receiver, configured to receive an SG and a power-margin sent by a network side device, and connect to the receiver, according to the SG. And the power_margin determines a length of a maximum transport block that the UE can schedule.
  • UE user equipment
  • the processor is specifically configured to:
  • the processor is specifically configured to: pass the SG, the power_margin, and a formula:
  • e, ref , m ⁇ ⁇ 7r calculates the length of the largest transport block that the UE can schedule; in the formula, Serving-Gold represents the SG, stepsize represents the first power step, and L p am ⁇ represents the DPCCH prefix
  • the length, re/m represents the reference enhanced transport format combination E-TFC block length of the UE, re/ represents the number of code channels of the reference E-TFC block length, A ed m represents the quantized amplitude ratio of the reference E-TFC, ⁇ / ⁇ indicates the hybrid automatic repeat request HARQ offset value.
  • the processor is specifically configured to: pass the SG, the power_margin, and a formula:
  • the processor is specifically configured to: pass the SG, the power_margin, and a formula:
  • an embodiment of the present invention provides a user equipment (UE), including: a first determining module, configured to determine a first power step; and a first adjusting module, connected to the first determining module, to use the The first power step adjusts the dedicated physical control channel DPCCH transmit power of the UE from the initial power to the first transmit power; the second determining module is connected to the first adjustment module, and is configured to determine the first power a second power step with a different step size; a second adjustment module, coupled to the second determining module, configured to adjust, by using the second power step, the DPCCH transmit power from the first transmit power to a first Two transmit power.
  • UE user equipment
  • the UE further includes: a receiving module, configured to receive a power headroom sent by the network side device before determining the first power step; Obtaining a reference power; a third determining module, configured to determine the DPCCH initial power according to the reference power and the power margin.
  • the DPCCH is configured with a primary carrier and a secondary carrier, where the reference power is specifically: a current power or a location of the primary carrier. The downlink pilot power of the secondary carrier.
  • the first determining module is specifically configured to: receive a power control command word sent by the network side device, where the power control command word includes The first power step is determined; or the quotient obtained by dividing the absolute value of the power headroom sent by the network side device by n is determined as the first power step, and the n is a preset value.
  • the first determining module is specifically configured to: quantize the first power step, and obtain the quantized A power step.
  • the n is specifically: the UE firstly uses the service authorization SG The number of delay slots for transmitting the dedicated channel-specific physical data channel E-DPDCH data, or the number of slots of the DPCCH prefix when the DPCCH is discontinuously transmitted, or the number of slots of the DPCCH prefix when the DPCCH is discontinuously transmitted and fixed. The sum of the number of slots.
  • the second determining module is specifically configured to: receive a power control command word sent by the network side device, where the power control command word includes the The second power step.
  • an embodiment of the present invention provides a network side device, including: a first determining module, configured to determine a power control command word including a power lifting instruction; and a first sending module, configured to include the power lifting instruction
  • the power control command word is sent to the user equipment UE, so that the UE adjusts the dedicated physical control channel DPCCH transmission power of the UE from the initial power to the first transmission power according to the power lifting instruction and the first power step; a determining module, configured to determine a power control command word that includes a second power step; a second sending module, configured to send, to the user equipment UE, the power control command word that includes the second power step
  • the UE adjusts the first transmit power to the second transmit power by using the second power step, where the first power step and the second power step are different power steps.
  • the method further includes: a third determining module, configured to determine the first power step; the second sending module is specifically configured to: a power step and a power control command word of the power up and down command are sent to the UE to enable the UE
  • the method further includes: a fourth determining module, configured to determine a power headroom used by the UE; the first sending module is further configured to: A power headroom is sent to the UE to cause the UE to determine the initial power according to the obtained reference power and the power headroom.
  • the embodiment of the present invention provides a user equipment UE, including: a first receiving module, configured to receive a target signal interference ratio SIRt transmitted by the network side device, and a total control channel power margin C/P available to the UE; a determining module, coupled to the receiving module, configured to determine the SG according to at least the ⁇ and the C/P.
  • the UE further includes: a second receiving module, configured to receive the network side before determining the SG according to the at least the C/P And the determining module is configured to: determine, according to the ⁇ , the C/P, and the Load, the SG.
  • the determining module is specifically configured to: based on the ⁇ , the Load, the C/P, and a formula:
  • the SG is determined.
  • the UE further comprising: a third receiving module, for at least according to the S 7 r, and the said Load Before determining the SG, the C/P receives the power headroom power-margin sent by the network side device; the determining module is specifically configured to: load, the C/P according to the 5 ⁇ And the power_margin determines the SG.
  • the determining module is specifically configured to: based on the ⁇ R w, the load, the C/P, the Power-margin and formula: m arg in 1 + SG+ - ⁇ ROT , OK P describes SG.
  • the determining module is specifically configured to: be based on the ⁇ , the load, the C/P, the Power—margin and formula:
  • the UE further includes: a fourth receiving module, configured to receive the network before determining the SG according to at least the 5 and the C/P And the determining module is configured to: determine the SG based on at least the 1 , the c/p, and the ⁇ .
  • the determining module is specifically configured to: based on the ⁇ R ⁇ ei , the C/P, and the ⁇ formula:
  • the UE further includes: a fifth receiving module, configured to perform the at least the ⁇ , the CP, and the Before determining the SG, receiving the power headroom sent by the network side device
  • the determining module is specifically configured to: determine the SG based on the ⁇ , the C/P, the ⁇ , and the power_margin.
  • the determining module is specifically configured to: pass the 5 ⁇ ar, the C/P, the ⁇ , and the Description Power—margin and formula:
  • the determining module is specifically configured to: pass the 5 , the C/P, the ⁇ , and the
  • the embodiment of the present invention provides a network side device, including: a first determining module, configured to determine a target signal interference ratio SIR ⁇ get , a total control channel power margin C/P available to the UE; And a module, configured to send the a r g w and the C/P to the UE, so that the UE determines the service authorization SG of the UE by using at least the SR ⁇ gw and the C/P.
  • a network side device including: a first determining module, configured to determine a target signal interference ratio SIR ⁇ get , a total control channel power margin C/P available to the UE; And a module, configured to send the a r g w and the C/P to the UE, so that the UE determines the service authorization SG of the UE by using at least the SR ⁇ gw and the C/P.
  • the method further includes: a second determining module, configured to determine an available network load of the UE; and a second sending module, configured to: send the load to the Determining the UE, so that the UE determines the SG based at least on the ⁇ , the C/P, and the Load.
  • the method further includes: a third determining module, configured to determine a power margin, a power-margin; and a third sending module, configured to send the power headroom Go to the UE, so that the UE determines the SG according to the WR ⁇ gei , the Load, the C/P, and the power_margin.
  • the method further includes: a fourth determining module, configured to determine an available network load factor ⁇ of the UE; and a fourth sending module, configured to send the ⁇ to the Determining the UE, so that the UE determines the SG based on at least the WR ⁇ w, the C/P, and the ⁇ .
  • the method further includes: a fifth determining module, configured to determine a power margin; a fifth sending module, configured to The power_margin is sent to the UE, so that the UE determines the SG based on the ⁇ , the C/P, the ⁇ , and the power_margin.
  • an embodiment of the present invention provides a user equipment (UE), including: a receiving module, configured to receive an SG and a power-margin sent by a network side device; and a determining module, connected to the receiving module, according to the SG And the power_margin determines a length of a maximum transport block that the UE can schedule.
  • UE user equipment
  • the determining module is specifically configured to:
  • Serving-Grant power_margin calculates, by the SG, the power_margin and the formula: e, ref, mj 2 i QAharq/lO e, ref, m ed, m, the length of the maximum transport block that the UE can schedule;
  • Serving_Gold represents the SG
  • ⁇ / ( possibly indicates the reference enhanced transport format combination E-TFC block length of the UE
  • L e ref m represents the number of code channels of the reference E-TFC block length
  • ⁇ denotes the quantization amplitude ratio of the reference E-TFC
  • Aharq shows the hybrid automatic repeat request HARQ offset value.
  • the determining module is specifically configured to: pass the SG, the power_margin, and a formula:
  • the transport format combines the E-TFC block length, re/ denotes the number of code channels of the reference E-TFC block length, A ed m denotes the quantization amplitude ratio of the reference E-TFC, and ⁇ / ⁇ denotes the hybrid automatic repeat request HARQ offset value .
  • the determining module is specifically configured to: pass the SG, the power_margin, and a formula: Serving— Grant - power— mar n
  • A is the length of the largest transport block that can be scheduled; in the formula, Serving-Gold represents the SG, indicating the first reference E-TFC block length of the UE, and re/m+1 represents the second reference of the UE
  • the E-TFC block length represents the number of code channels of the first reference E-TFC
  • 4 m+1 represents the second code channel number of the second reference E-TFC
  • 4 d represents the quantization amplitude ratio of the first reference E-TFC
  • ⁇ +1 represents the quantization amplitude ratio of the second reference E-TFC
  • ⁇ harq represents the HARQ offset value.
  • the determining module is specifically configured to: pass the SG, the power_margin, and a formula:
  • ⁇ calculating the length of the maximum transport block that the UE can schedule; in the formula, Serving_Gold represents the SG, stepsize represents the first power step, L p am ⁇ represents the length of the DPCCH prefix, and K e ref m represents The first reference E-TFC block of the UE is long, ⁇ / ( +1 represents the second reference E-TFC block length of the UE, and 4 represents the number of code channels of the first reference E-TFC, J ⁇ m +1 represents the second code channel number of the second reference E-TFC, ⁇ represents the quantization amplitude ratio of the first reference E-TFC, ⁇ +1 represents the quantization amplitude ratio of the second reference E-TFC, and Aharq represents the HARQ offset value .
  • the embodiment of the present invention provides a power adjustment method, including: determining a first power step; adjusting, by using the first power step, a dedicated physical control channel DPCCH transmit power of a user equipment UE from initial power to a first transmit power; determining a second power step different from the first power step; and adjusting the DPCCH transmit power from the first transmit power to the second transmit power by using the second power step.
  • the method before the determining the first power step, further includes: receiving, by the UE, a power headroom sent by a network side device; The UE acquires reference power; the UE determines the initial power according to the reference power and the power margin.
  • the DPCCH is configured with a primary carrier and a secondary carrier, where the reference power is specifically: a current power of the primary carrier or Downlink pilot power of the secondary carrier.
  • the determining the first power step specifically: receiving a power control command word sent by the network side device, where the power control command word is The first power step is included; or the quotient obtained by dividing the absolute value of the power headroom sent by the network side device by n is determined as the first power step, and the n is a preset value.
  • the quotient obtained after dividing the absolute value of the power headroom sent by the network side device by n is determined as After the first power step, the method further includes: quantizing the first power step to obtain a quantized first power step.
  • the n is specifically: the UE first serving service Authorizing the SG to perform the number of delay slots for transmitting the E-DPDCH data of the dedicated channel dedicated physical data channel, or the number of slots of the DPCCH prefix when the DPCCH is discontinuously transmitted, or the number of slots of the DPCCH prefix when the DPCCH is discontinuously transmitted The sum of the fixed number of slots.
  • the determining a second power step that is different from the first power step is: receiving a power control command sent by the network side device a word, the power control command word includes the second power step.
  • the embodiment of the present invention provides a data transmission method, including: determining a power control command word including a power lifting instruction; and transmitting, to the user equipment UE, a power control command word including the power lifting instruction Determining, by the UE, the transmit power of the dedicated physical control channel DPCCH of the UE from the initial power to the first transmit power according to the power up and down command and the first power step; determining a power command word including the second power step; The power control command word including the second power step is sent to the user equipment UE, so that the UE sends the first transmit power by using the second power step Adjusting to a second transmit power, where the first power step and the second power step are different power steps.
  • the method before the sending the power control command word that includes the power lifting instruction to the user equipment UE, the method further includes: determining the first power Sending the power control command word including the power lifting instruction to the user equipment UE, specifically: sending a power control command word including the first power step and the power lifting instruction to the And the UE, to enable the UE to adjust the DPCCH transmission power from the initial power to the first transmit power by using the first power step.
  • the method before determining the power control command word including the power lifting instruction, the method further includes: determining a power headroom used by the UE; A margin is sent to the UE to cause the UE to determine the initial power according to the obtained reference power and the power headroom.
  • the embodiment of the present invention provides a service authorization SG determining method, including: receiving, by a user equipment UE, a target signal interference ratio SIRt , a total control channel power margin C/P available to the UE; The SG is determined according to the sum and the c/P.
  • the method further includes: receiving an available network load Load of the UE sent by the network side device; determining the at least according to the 5 and the c/P
  • the SG specifically includes: determining the SG according to at least the ⁇ , the C/P, and the Load.
  • the at least according to the 5 ⁇ a ⁇ , the Load and the C / P determining the SG specifically For: based on the S/R ei , the Load, the C/P and the formula: 1 + SG + ⁇ Load , indeed
  • the method further comprising: receiving the power headroom power- margin sent by the network equipment; at least the said ⁇ ⁇ 7, the Load and the C / P determining the SG, specifically as follows: according to the
  • the determining, according to the ⁇ gw, the load, the C/P, and the power_margin The SG is specifically: based on the ⁇ , the Load, the C/P, the power-margin, and the public
  • the determining, according to the method, the load, the C/P, and the power-margin SG specifically: based on the 5 ⁇ a , the load, the C/P, the power-margin, and the public
  • the method further comprises: the network side of the receiving apparatus of a UE available network load factor [eta]; ⁇ ⁇ at least in accordance with the said and
  • the C/P determines the SG, specifically: determining the SG based on at least the 1 ⁇ , the C/P, and the ⁇ .
  • the determining the SG based on the at least the ⁇ , the C/P, and the ⁇ is specifically: Based on
  • the method Before the determining the SG based on the SIRt , the C/P, and the ⁇ , the method further includes: receiving a power headroom power-margin sent by the network side device; the basis of the ⁇ 5 C / P and the ⁇ determining the SG, specifically: based on the 5 ⁇ a r, the C / P, the ⁇ and the power- margin determining the SG.
  • ⁇ determines the SG.
  • the /P, the ⁇ and the power_margin determine the SG, specifically: by the 5 , the C/P, the ⁇ , and the power_margin and a formula:
  • an embodiment of the present invention provides a data transmission method, including: determining a target signal interference ratio of a total control channel power headroom C/P available to the UE; and transmitting the C/P to the Determining the UE, so that the UE determines the service authorization SG of the UE by using at least the device and the C/P.
  • the method further includes: determining an available network load of the UE; sending the load to the UE, so that the UE is based at least on the S/R ⁇ gei , the C/P and the Load determine the SG.
  • the method further includes: determining a power headroom power-margin; sending the power headroom power_margin to The UE, so that the UE according to the 5 ⁇ a r g w, the Load, the C/P, and the
  • Power_margin determines the SG.
  • the method further includes: determining an available network load factor ⁇ of the UE; sending the ⁇ to the UE, so that the UE is based at least on the SIR ⁇ et , the C/P and the ⁇ determine the SG.
  • the method further includes: determining a power head margin power_margin; sending the power_margin to the UE, so as to enable The UE determines the SG based on the ⁇ R ⁇ gw, the C/P, the ⁇ , and the power_margin.
  • a fifteenth aspect of the present invention provides a method for determining a length of a transport block, comprising: receiving an SG and a power-margin sent by a network side device, and determining, according to the SG and the power_margin, a maximum transmission that the UE can schedule The length of the block.
  • the determining, by the SG and the power_margin, a length of a maximum transport block that the UE can schedule specifically: using the SG, the power - margin and formula: Calculate the UE
  • the length of the maximum transport block that can be scheduled in the formula, Serving_Gold represents the SG, indicating the reference enhanced transport format combination E-TFC block length of the UE, and L e ref m represents the reference E-TFC block length
  • the number of code channels, 4 represents the quantization amplitude ratio of the reference E-TFC
  • Ah arq represents the hybrid automatic repeat request HARQ offset value.
  • the determining, by the SG and the power_margin, a length of a maximum transport block that the UE can schedule specifically: using the SG, the power — margin and formula:
  • e, ref , m ⁇ ⁇ 7r calculates the length of the largest transport block that the UE can schedule; in the formula, Serving-Gold represents the SG, stepsize represents the first power step, and L p am ⁇ represents the DPCCH prefix Length, re/m represents the parameters of the UE
  • the enhanced transport format combines the E-TFC block length, re/ denotes the number of code channels of the reference E-TFC block length, A ed m denotes the quantization amplitude ratio of the reference E-TFC, and ⁇ / ⁇ denotes the hybrid automatic repeat request HARQ Offset value.
  • the determining, by the SG and the power_margin, a length of a maximum transport block that the UE can schedule specifically: using the SG, the power - margin and formula: Calculate the UE The length of the maximum transport block that can be scheduled; in the formula, the Serving-Gold indicates that the SG indicates the first reference E-TFC block length of the UE, and re/m+1 indicates the second reference E of the UE.
  • ⁇ +1 represents the quantization amplitude ratio of the second reference E-TFC
  • ⁇ harq represents the HARQ offset value
  • the determining, by the SG and the power_margin, a length of a maximum transport block that the UE can schedule specifically: using the SG, the power — margin and formula:
  • ⁇ calculating the length of the maximum transport block that the UE can schedule; in the formula, Serving_Gold represents the SG, stepsize represents the first power step, L p am ⁇ represents the length of the DPCCH prefix, and K e ref m represents The first reference E-TFC block length of the UE, ⁇ / ( +1 +1 indicates the second reference E-TFC block length of the UE, indicating the number of code channels of the first reference E-TFC, 4 m+1 indicates The number of code channels of the second reference E-TFC, 4 d represents the quantization amplitude ratio of the first reference E-TFC, ⁇ +1 represents the quantization amplitude ratio of the second reference E-TFC, and Iharq represents the HARQ offset value.
  • the processor first adjusts the dedicated physical control channel DPCCH transmission power of the user equipment UE from the initial power to the first transmission power by using the first power step, and then passes the first power step.
  • the second power step is to adjust the DPCCH transmit power from the first transmit power to the second transmit power, and the transmitter sends the data to the network side device by using the first transmit power or the second transmit power, compared to the prior art.
  • the method for adjusting the transmit power of the DPCCH by using only one power step can adjust the transmit power of the DPCCH by using different power steps for different adjustment stages, thereby further more accurately transmitting the power of the DPCCH, and
  • the signal-to-interference ratio of the DPCCH determined by the base station can be guaranteed (SIR: Signal to Interference)
  • Ratio can converge as quickly as possible to the target signal-to-interference ratio ⁇ r .
  • FIG. 1 is a structural diagram of a UE according to a first aspect of an embodiment of the present invention
  • FIG. 2a is a schematic diagram of a processor adjusting a DPCCH transmission power by increasing a power step in a first aspect of the embodiment of the present invention
  • 2b is a schematic diagram of a processor adjusting a transmit power of a DPCCH by reducing a power step in a first aspect of the embodiment of the present invention
  • FIG. 3 is a structural diagram of a network side device according to a second aspect of the embodiment of the present invention.
  • FIG. 4 is a structural diagram of a UE according to a third aspect of the embodiment of the present invention.
  • FIG. 5 is a timing diagram of E-AGCH transmission and application according to a third aspect of the present invention
  • FIG. 6 is a structural diagram of a network side device according to a fourth aspect of the present invention.
  • FIG. 7A is a structural diagram of a UE according to a fifth aspect of the embodiment of the present invention.
  • FIG. 7B is a structural diagram of a UE according to a sixth aspect of the present invention.
  • FIG. 8 is a structural diagram of a network side device according to a seventh aspect of the present invention.
  • FIG. 9 is a structural diagram of a UE according to an eighth aspect of the present invention.
  • FIG. 1 is a structural diagram of a network side device according to a ninth aspect of the embodiment of the present invention.
  • FIG. 10B is a structural diagram of a UE according to a tenth aspect of the present invention
  • 11 is a flowchart of a power adjustment method according to an eleventh embodiment of the present invention
  • FIG. 12 is a flowchart of a data transmission method according to a twelfth aspect of the present invention
  • FIG. 14 is a flowchart of a method for data transmission according to a fourteenth aspect of the present invention
  • FIG. 15 is a flowchart of a method for determining a length of a transport block according to a fifteenth aspect of the present invention.
  • the processor first adjusts the transmit power of the dedicated physical control channel DPCCH of the user equipment UE from the initial power to the first power step.
  • the first transmit power, and then the DPCCH transmit power is adjusted from the first transmit power to the second transmit power by a second power step different from the first power step, and the transmitter transmits the first transmit power or the second transmit power
  • the power is transmitted to the network side device.
  • the DPCCH transmission power is adjusted by only one power step.
  • the present invention can send different power steps to the DPCCH for different adjustment stages.
  • the power is adjusted to further improve the transmit power of the DPCCH, and it can be ensured that the signal to interference ratio (SIR: Signal to Interference Ratio) of the DPCCH determined by the base station can converge to the target signal-to-interference ratio as soon as possible.
  • SIR Signal to Interference Ratio
  • an embodiment of the present invention provides a UE.
  • the method specifically includes: a processor 10, configured to determine a first power step.
  • DPCCH Dedicating the dedicated physical control channel DPCCH transmit power of the user equipment UE from the initial power to the first transmit power using the first power step
  • the transmitter 11 is connected to the processor, configured to pass the first transmit power and/or the second transmit power to The network side device sends data, that is, the data may be sent to the network side device by using at least one of the first sending power and the second sending power.
  • the UE further includes: a receiver, connected to the processor 10, configured to receive a power headroom sent by the network side device before determining the first power step.
  • the network side devices are, for example, a base station, a radio network controller (RNC: Radio Network Controller), and the like.
  • the processor 10 is further configured to: acquire a reference power, and determine an initial power according to the reference power and the power margin.
  • the base station cannot determine the initial power of the DPCCH used by the UE when the UE is handed over or when the UE does not transmit data for a long time. Therefore, in the initial transmission phase, the initial power of the appropriate DPCCH needs to be determined for the UE to ensure that there is no Before receiving the AG sent by the network side device, it can also send data, thereby improving resource utilization.
  • the network side device may send a power headroom to the UE by using signaling.
  • the DPCCH in the present invention can configure the primary carrier and the secondary carrier, and the scheme is applied to the dual carrier system.
  • the reference power is, for example, the current power of the primary carrier or the downlink pilot power of the secondary carrier, and the like.
  • the two types of power can be detected by the UE.
  • the method for obtaining the reference power is not limited in the embodiment of the present invention.
  • the UE When the current power of the primary carrier is the current uplink power, since the current uplink frequency of the primary carrier and the secondary carrier have a small frequency interval, the UE normally transmits the DPCCH through the secondary carrier, thereby ensuring that the determined initial power of the DPCCH is more accurate. .
  • the processor 10 can obtain the initial power by linearly calculating the power headroom and the reference power, for example: obtaining the initial power by the following formula:
  • Pini P re f - power— margin [ 1 ] where P mi represents the initial power
  • P ref represents the reference power
  • the initial power can be quickly determined without waiting for the network side device to determine.
  • the initial power of the UE can determine the initial power as soon as possible after switching or no data transmission for a period of time, thereby achieving the technical effect of making full use of the available network load.
  • the processor 10 can determine the first power step in a plurality of manners. Two of them are described below. Of course, in the specific implementation, the following two situations are not limited.
  • the receiver is specifically configured to: receive a power control command word sent by the network side device, where the power control command word includes a first power step;
  • the processor 10 is specifically configured to: acquire a first power step from the receiver.
  • the transmitter 11 After the UE determines the initial power, the transmitter 11 transmits the initial power to the network side device.
  • the network side device After receiving the DPCCH, the network side device estimates the signal to interference ratio of the DPCCH (SIR:
  • the processor 10 is specifically configured to: determine the quotient value obtained by dividing the absolute value of the power headroom sent by the network side device by n as the first power step, where n is a preset value.
  • the n is specifically: the number of delay slots for the UE to use the service grant SG to perform the enhanced dedicated channel dedicated physical data channel E-DPDCH data transmission, or the number of slots of the DPCCH prefix when the DPCCH is discontinuously transmitted. Or the sum of the number of time slots of the DPCCH prefix and the number of fixed time slots when the DPCCH is discontinuously transmitted.
  • the first power step size can be determined as: power_margin/15.
  • the receiver may further receive a power control command word sent by the network side device and include a power up and down command, and then determine the first transmit power by using the first power step and the power up and down command, for example: if the power up and down command is And decreasing the indication of the power, obtaining the first transmission power by subtracting the first power step from the initial power; and if the power lifting instruction is the indication of increasing the power, increasing the first power step by the initial power to obtain the first transmission power.
  • the UE may adjust the initial power by using the first power step, and determine the first transmit power.
  • the receiver is further configured to: receive a power control command word sent by the network side device, where the power control command word includes a second power step size;
  • the processor 10 is specifically configured to: acquire a second power step from the receiver.
  • the UE first sends the first sending power to the network side device.
  • the network side device estimates the SIR of the DPCCH, and then compares it with the target signal interference ratio, thereby generating a power control command word for the lifting power, wherein if
  • the network side device transmits a power control command word including a power up and down command and a second power step to the UE.
  • the processor 10 After receiving the power control command word including the power lifting command and the second power step, the processor 10 also determines the second sending power by using the power lifting command included in the power control command word, for example: The command is an indication of increasing power, and determining a second transmit power by using a second power step and a first transmit power; and if the power up/down command is an indication of reducing power, reducing the first transmit power by using the second power step The transmission determines the second transmission power and the like. Similarly, the processor 10 can adjust the first transmit power by using the second power step multiple times to determine the second transmit power.
  • the DPCCH transmission power is adjusted by the second power step, after the DPCCH transmission power is adjusted by the first power step, it is usually a fine adjustment information, so that the second power step is usually smaller than the first power step.
  • the first power step is 2 dB
  • the second power step is IdB.
  • other values may be used, which are not limited in the embodiment of the present invention.
  • FIG. 2a is a schematic diagram of power adjustment when a power control command word that transmits a first power step and a power control command that sends a second power step both include an increased power indication.
  • the initial power p is determined, and then the transmitter 11 sends the DPCCH to the network side device through the initial power p.
  • the network side device detects the SIR of the DPCCH, determines that it is smaller than the SIRt , and the SIR and the ⁇ have a large difference, so the power is increased.
  • a power control command word which includes stepl, after receiving the power control command word by the receiver, the processor 10 of the UE adjusts the DPCCH transmission power from the initial power to p+ste1;
  • the transmitter 11 of the UE sends the DPCCH to the network side device through p+step1, and the network side device detects the SIR of the DPCCH, and determines that it is smaller than 5 , and the SIR and the difference are larger, for example, the initial power setting of the UE side is too low. Or if the channel fading is just large, the SIR and the phase difference are large.
  • the SIR is, for example, -12dB, 7 ⁇ g, for example, 8dB. Therefore, the power control command word for increasing power is sent, including the stepl, the processor of the UE. 10 after receiving the power control command word through the receiver, the DPCCH transmission power is adjusted from the initial power p to p + 2 X stepl;
  • the transmitter 11 of the UE sends the DPCCH to the network side device through p+ 2 X step1, and the network side device detects the SIR of the DPCCH, and determines that the ratio is small, so the power step is adjusted from step 1 to S s I t R ep t small. , and SIR and
  • the transmitter 11 of the UE transmits the DPCCH to the network side device through p+ 2 X step1+step2, and the network side device detects the SIR of the DPCCH, determines that it is smaller than SIRt , and SIR and
  • SIRt SIR is, for example, 7 dB, for example, 8 dB, so the power control command word of increasing power is continuously transmitted, including step 2, and the processor 10 of the UE transmits the power of the DPCCH from the initial power after receiving the power control command word through the receiver.
  • p is adjusted to p + 2 X step 1+2 step2; and so on.
  • FIG. 2b is a schematic diagram of power adjustment when the power control command word for transmitting the first power step and the power control command word for transmitting the second power step include the power reduction indication.
  • the initial power p is determined, and then the transmitter 11 of the UE sends the DPCCH to the network side device through the initial power p, and the network side device detects the SIR of the DPCCH, determines that it is larger than 5 , and the SIR and the difference are larger, so the transmission is reduced.
  • the power control command word which includes stepl, after receiving the power control command word through the receiver, the processor 10 adjusts the DPCCH transmission power from the initial power to P-ste l;
  • the power step is adjusted from step 1 to step 2, and then the power control command word with a smaller difference in the power S rate IR ⁇ is transmitted.
  • the processor 10 of the UE receives the power control command word through the receiver, and adjusts the DPCCH transmission power from the initial power p to P-2X ste l-step2;
  • the transmitter 11 of the UE transmits the DPCCH to the network side device through P-2X step1 - step2, and the network side device detects the SIR of the DPCCH, determines that it is larger than SIRt , and SIR and
  • the transmission power of 816 1 ⁇ 6 2 is just right, and the SIR or ⁇ phase difference is small.
  • the SIR may be slightly larger than 5 ⁇ a ⁇
  • SIR is for example: 3dB
  • SIRt is, for example: 2dB
  • the processor 10 of the UE adjusts the DPCCH transmission power from the initial power p to P- 2 X step 1-2 ⁇ step2, according to J3 ⁇ 4 analogy.
  • the second aspect is based on the description of the embodiment of the first aspect.
  • the embodiment of the present invention provides a network side device. Referring to FIG. 3, the following specifically includes:
  • the transmitter 31 is connected to the processor 30, and configured to send the power control command word including the power up/down command to the user equipment UE, so that the UE sends the dedicated physical control channel DPCCH of the UE according to the power lifting instruction and the first power step.
  • the power is adjusted from the initial power to the first transmit power;
  • the transmitter 31 is further configured to: send the power control command word that includes the second power step to the user equipment UE, so that the UE adjusts the first sending power to the second sending power by using the second power step, where One power step and the second power step are different power steps.
  • the processor 30 is further configured to determine a first power step size
  • the processor 30 is further configured to determine a power headroom used by the UE;
  • the receiver 40 is configured to receive a target signal to interference ratio sent by the network side device and a total control channel power margin C/P available to the UE;
  • the initial power of the appropriate E-DPDCH needs to be determined for the UE to ensure that the data can be sent before the SG sent by the network side device is received, thereby improving resource utilization.
  • the SIR target is the demodulation error block rate of the RNC statistical E-DPDCH data, and is determined according to a certain outer loop power control algorithm, for example, counting the block error rate of the previous period.
  • the statistical block error rate is compared with the block error rate target value. If it is greater than the target value, the SIR tar g et is lowered to a smaller value. If it is smaller than the target value, the SIR ta et is adjusted to a larger value. Value, and C/P is set directly by the network.
  • the network side device may perform uplink and C /p to the UE through high layer signaling.
  • the processor 11 determines the SG according to at least 7 ⁇ g and C/P, and can be used in various cases. The following two examples are introduced, of course, In the specific implementation process, it is not limited to the following two cases.
  • SG function( SIRt , c/P, Load ) [3] While the processor 41 determines the SG according to S 7 ⁇ g , C/P and Load, it can be divided into at least two cases, which are respectively introduced below.
  • the 1 processor 41 determines the SG only by , C/P and Load.
  • the SG can be further determined by the following formula:
  • the SG determined by taking the equal sign is a better SG, which can ensure sufficient use of the network load and ensure that the network load does not exceed the available network load of the UE.
  • Receiver 40 also used to: Receiving a power headroom power-margin sent by the network side device before determining the SG according to at least, Load, and C/P; in this case, the processor 41 determines the SG according to, Load, C/P, and power-margin. That is, the correspondence between SG and SIRt , C/P, Load, and power-margin can be expressed by the following formula:
  • the processor 41 can further calculate the SG by the following formula:
  • the processor 41 can further calculate the SG by the following formula:
  • the SG can be further determined by the following formula:
  • the receiver 40 is further configured to: before receiving the SG according to the SIR ( and the CP, receiving the UE that is sent by the network side device a network load factor ⁇ ; in this case, the processor 41 is specifically configured to: determine at least based on 5 ⁇ a , C/P, and ⁇
  • the processor 41 can be divided into at least two cases when determining the SG according to , C/P and ⁇ , which are respectively described below.
  • the 1 processor 41 determines the SG based only on 5 ⁇ , C/P, ⁇ , for example, by the following formula
  • the processor 41 can further determine the SG by the following formula:
  • the above calculation formula is generally applied to UEs that perform data transmission through a single antenna.
  • the processor 41 can further determine the SG by the following formula: ( ⁇ ⁇ + power m arg in) * (1 + 5G +— ) + ( ⁇ ⁇ + power m arg in) [13]
  • the above calculation formula is usually applied to UEs that transmit data through multiple antennas.
  • the embodiment of the present invention provides a network side device. Referring to FIG. 6, the method includes:
  • the transmitter 61 is connected to the processor 60, and is configured to send the W and the C/P to the UE, so that the UE determines the service authorization SG of the UE by using at least S/ and C/P.
  • the transmitter 61 is further configured to: send the Load to the UE, so that the UE determines the SG based on at least ⁇ , C/P, and Load.
  • the processor 60 is further configured to: determine a power headroom power-margin;
  • the transmitter 61 is specifically configured to: send a power margin to the UE, so that the UE determines the SG according to the S/R ⁇ gei , Load, C/P, and power_margin.
  • the transmitter 61 is further configured to: send ⁇ to the UE, so that the UE determines the SG based on at least WR ⁇ g w, C/P, and ⁇ .
  • the transmitter 61 is further configured to: send the power_margin to the UE, so that the UE determines the SG based on 5 ⁇ argei , C/P, ⁇ , and power_margin .
  • the embodiment of the present invention provides a user equipment UE. Referring to FIG. 7A, the method includes:
  • the processor 71A is connected to the receiver 70A for using the SG and the power_margin Determining the length of the largest transport block that the UE can schedule.
  • the processor 70 is configured to: calculate the UE by using the SG, the power_margin, and a formula:
  • the length of the largest transport block that can be scheduled in the formula, Serving_Gold represents the SG, stepsize represents the first power step, L represents the length of the DPCCH prefix, and ⁇ represents the
  • the reference enhanced transport format of the UE combines the E-TFC block length, indicating the number of code channels of the reference E-TFC block length, ⁇ indicates the quantization amplitude ratio of the reference E-TFC, and ⁇ / ⁇ indicates the hybrid automatic repeat request HARQ offset. value. Among them, i ! Indicates rounding of the calculation result.
  • the processor 70A the processor is specifically configured to: pass the SG, the power_margin, and a formula:
  • Serving_Gold represents the SG
  • stepsize represents a first power step
  • L represents a length of a DPCCH prefix
  • m represents The first reference E-TFC block length of the UE
  • ⁇ represents the second reference E-TFC block length of the UE
  • ⁇ represents the number of code channels of the first reference E-TFC
  • ⁇ represents the code of the second reference E-TFC
  • A represents the quantization amplitude ratio of the first reference E-TFC
  • ⁇ represents the quantization amplitude ratio of the second reference E-TFC, indicating the HARQ offset value.
  • L represents the rounding of the calculation result.
  • the number of code channels of the first reference E-TFC and the number of code channels of the second reference E-TFC are two fixed values, and the quantization amplitude ratio of the first reference E-TFC and the quantization amplitude ratio of the second reference E-TFC For two fixed values.
  • the SG is delivered by the network side device. After the network side device delivers the SG, the UE needs to perform transmission according to the determined transport block.
  • the SG is sent from the network side device to the UE to calculate the length of the transport block, and then the transport block is used for transmission. There is a certain delay between them. That is to say, when the UE uses the determined transport block for transmission, the SG may have changed. At this time, it is obvious that the length of the transport block determined according to the previous information is not accurate enough.
  • the transport block is transmitted and may cause a transmission failure.
  • the embodiment of the present invention provides a user equipment UE. Referring to FIG. 7B, the method includes:
  • a first determining module 70B configured to determine a first power step size
  • the first adjustment module 71B is connected to the first determining module, configured to adjust, by using the first power step, the transmit power of the dedicated physical control channel DPCCH of the UE from the initial power to the first transmit power;
  • the second determining module 72B is connected to the first adjusting module, and configured to determine a second power step that is different from the first power step.
  • the UE further includes:
  • a receiving module configured to receive a power margin sent by the network side device before determining the first power step
  • An acquisition module configured to obtain a reference power
  • a third determining module configured to determine a DPCCH initial power according to the reference power and the power margin.
  • the DPCCH is configured with a primary carrier and a secondary carrier
  • the reference power is specifically: a current power of the primary carrier or a downlink pilot power of the secondary carrier.
  • the n is specifically: the UE first uses the service authorization SG to perform dedicated channel enhancement.
  • the second determining module 72B is specifically configured to:
  • the embodiment of the present invention provides a network side device. Referring to FIG. 8, the method includes:
  • a first determining module 80 configured to determine a power control command word including a power lifting instruction
  • a second determining module 82 configured to determine a power control command word that includes a second power step
  • the second sending module 83 is configured to send the power control command word that includes the second power step to the user equipment UE, so that the UE adjusts the first sending power to the second sending power by using the second power step, where One power step and the second power step are different power steps.
  • it also includes:
  • a third determining module configured to determine a first power step size
  • the second sending module 83 is configured to: send the power control command word including the first power step and the power up and down command to the UE, so that the UE adjusts the DPCCH transmit power from the initial power to the first through the first power step Transmit power.
  • it also includes:
  • a fourth determining module configured to determine a power headroom used by the UE
  • the first sending module 81 is further configured to: send the power headroom to the UE, so that the
  • the UE determines the initial power according to the obtained reference power and the power headroom.
  • the determining module 91 is connected to the receiving module, and is configured to determine the SG according to at least the C /p, and the UE further includes:
  • a second receiving module configured to receive an available network load Load of the UE sent by the network side device before determining the SG according to at least 1 ⁇ and 0?
  • the UE further includes:
  • the determining module 71 is specifically configured to:
  • determining module 91 specifically for:
  • the UE further includes:
  • a fourth receiving module configured to receive an available network load factor ⁇ of the UE sent by the network side device before determining the SG according to at least 0 and 0;
  • the determining module 91 is specifically used for:
  • the SG is determined based at least on 5 ⁇ ar , C/P and ⁇ .
  • the determining module 91 is specifically configured to:
  • the UE further includes:
  • the determining module 91 is specifically configured to:
  • the SG is determined based on 5 ⁇ a , C/P, ⁇ , and power-margin.
  • the determining module 91 is specifically configured to:
  • the ninth aspect is based on the description based on the first to fifth aspects of the embodiments, and the embodiments of the present invention provide A network side device, as shown in FIG. 10A, specifically includes:
  • the first determining module 100A is configured to determine a target signal to interference ratio ⁇ total control channel power margin available to the UE C/P;
  • the first sending module 101A is configured to send the C/P to the UE, so that the UE determines the service authorization SG of the UE by using at least SI get and C/P.
  • it also includes:
  • a second determining module configured to determine a available network load of the UE
  • the second sending module is configured to: send the Load to the UE, so that the UE determines the SG based on at least the 5 « ⁇ ⁇ , C/P, and Load.
  • it also includes:
  • a third determining module configured to determine a power margin power-margin
  • a third sending module configured to send a power margin to the UE, so that the UE determines the SG according to the SIRt, the Load, the C/P, and the power-margin.
  • it also includes:
  • a fourth determining module configured to determine an available network load factor ⁇ of the UE
  • a fourth sending module configured to send ⁇ to the UE, so that the UE determines the SG based on at least, C/P, and ⁇ .
  • it also includes:
  • a fifth determining module configured to determine a power margin power-margin
  • a fifth sending module configured to send the power_margin to the UE, so that the UE determines the SG based on 5 ⁇ argei , C/P, ⁇ , and power_margin .
  • the embodiment of the present invention provides a user equipment UE.
  • the method specifically includes:
  • the receiving module 100B is configured to receive the SG and the power-margin sent by the network side device;
  • a determining module 101B coupled to the receiving module 100B, for using the SG and the
  • Power_margin determines the length of the largest transport block that the UE can schedule.
  • the determining module 101B is specifically configured to: calculate, by using the SG, the power_margin and the formula: a maximum transmission that the UE can schedule
  • the determining module 101B is specifically configured to: pass the SG, the power_margin, and a formula: Serving_Grant - (power_margin - stepsize * L
  • the reference enhanced transport format of the UE combines the E-TFC block length, ⁇ represents the number of code channels of the reference E-TFC block length, ⁇ represents the quantization amplitude ratio of the reference E-TFC, and ⁇ / ⁇ represents the hybrid automatic repeat request HARQ bias. Move the value. Among them, i ! Indicates rounding of the calculation result.
  • the determining module 101B is specifically configured to: pass the SG, the power_margin, and a formula: Calculating a length of a maximum transport block that the UE can schedule; in the formula, Serving_Gold represents the SG, ⁇ represents a first reference E-TFC block length of the UE, and ⁇ represents a second reference of the UE E-TFC block length, ⁇ represents the number of code channels of the first reference E-TFC, j represents the second code channel number of the second reference E-TFC, and A represents the quantization amplitude ratio of the first reference E-TFC, ⁇ A quantization amplitude ratio indicating a second reference E-TFC, indicating a HARQ offset value. Where ⁇ " means rounding up the calculation result.
  • the determining module 101B is specifically configured to: pass the SG, the power_margin, and a formula:
  • the embodiment of the present invention provides a power adjustment method. Referring to FIG. 11, the method specifically includes:
  • Step S1101 determining a first power step size
  • Step S1102 Adjusting, by using the first power step, the dedicated physical control channel DPCCH transmit power of the user equipment UE from the initial power to the first transmit power;
  • Step S1103 Determine a second power step that is different from the first power step.
  • Step S1104 The DPCCH transmission power is adjusted from the first transmission power to the second transmission power by using the second power step.
  • the method before determining the first power step, the method further includes:
  • the UE obtains reference power
  • the UE determines the initial power based on the reference power and the power headroom.
  • the DPCCH is configured with a primary carrier and a secondary carrier, and the reference power is specifically: a current power of the primary carrier or a downlink pilot power of the secondary carrier.
  • determining the first power step specifically:
  • the quotient obtained by dividing the absolute value of the power headroom transmitted by the network side device by n is determined as the first power step, and n is the preset value.
  • the method further includes: using the first power The step size is quantized to obtain the quantized first power step size.
  • the n is specifically: the number of delay slots for the UE to use the service grant SG to perform the enhanced dedicated channel dedicated physical data channel E-DPDCH data transmission, or the number of slots of the DPCCH prefix when the DPCCH is discontinuously transmitted. , or the sum of the number of slots of the DPCCH prefix and the number of fixed slots when the DPCCH is discontinuously transmitted.
  • determining a second power step different from the first power step specifically:
  • the embodiment of the present invention provides a data transmission method. Referring to FIG. 12, the method specifically includes:
  • S1203 Determine a power control command word that includes a second power step
  • S1204 Send a power control command word including a second power step to the user equipment UE, so that the UE adjusts the first transmit power to the second transmit power by using the second power step, where the first power step and the first power step The two power steps are different power steps.
  • the method before sending the power control command word including the power lifting instruction to the user equipment UE, the method also includes: determining a first power step size;
  • Sending the power control command word including the power up and down command to the user equipment UE specifically: sending a power control command word including the first power step and the power up and down command to the UE, so that the UE passes the DPCCH through the first power step
  • the transmission power is adjusted from the initial power to the first transmission power.
  • the method before determining the power control command word that includes the power up and down command, the method further includes: determining a power headroom used by the UE;
  • the embodiment of the present invention provides a method for determining a service authorization SG. Referring to FIG. 13, the method includes:
  • Step S1301 The user equipment UE receives the target signal interference ratio sent by the network side device.
  • Step S1302 Determine the SG according to at least the sum C/P.
  • the method further includes: receiving an available network load of the UE sent by the network side device, and determining the SG by using at least a C/P, specifically:
  • the SG is determined according to at least, Load, and C/P, specifically:
  • the method before determining the SG according to at least the ⁇ ⁇ , Load, and C/P, the method further includes: receiving a power headroom sent by the network side device, power margin; at least according to S 7?i , Load , and C /P determines SG, specifically:
  • the SG is determined based on 1 ⁇ 7 ⁇ , Load, C/P, and power_margin.
  • determine SG according to ', Load, C/P, and power-margin specifically: based on ⁇ , Load, C/P, ower-margin and formula:
  • the method before determining the SG according to at least the F and the C/P, the method further includes: receiving an available network load factor ⁇ of the UE sent by the network side device;
  • the SG is determined based at least on 5 ⁇ a , C/P, and ⁇ .
  • the SG is determined based on at least 5 ⁇ ', C/P, and ⁇ , specifically:
  • the method further includes: receiving a power headroom power-margin sent by the network side device;
  • the SG is determined based on ⁇ , C /p, ⁇ and power_margin.
  • the SG is determined based on ⁇ , C/P, ⁇ , and power_margin, specifically: by 5 ⁇ ar g, cp, ⁇ , and power_margin and formula - ⁇ ⁇ formula SG.
  • the embodiment of the present invention provides a data transmission method. Referring to FIG. 14, the method includes:
  • Step S1401 determining a target signal to interference ratio W ⁇ UE available total control channel power margin
  • Step S1402 Send 57 and 0? to the UE, so that the UE determines the service authorization SG of the UE by using at least L gei and C/P.
  • it also includes:
  • the Load is sent to the UE, so that the UE determines the SG based on at least ⁇ gei , C / P , and Load .
  • it also includes:
  • the power margin power_margin is sent to the UE, so that the UE determines the SG according to ⁇ gei , Load, C/P, and power-margin.
  • it also includes:
  • ⁇ is sent to the UE such that the UE determines the SG based at least on ⁇ gef , C/P and ⁇ .
  • it also includes:
  • the power_margin is sent to the UE so that the UE determines the SG based on SIRf, C/P, ⁇ , and power_margin.
  • the embodiment of the present invention provides a method for determining a transport block length. Referring to FIG. 15, the method includes:
  • Step S1501 Receive SG and power_margin sent by the network side device
  • Step S1502 Determine, according to the SG and the power_margin, the length of the maximum transport block that the UE can schedule.
  • step S1502 can be implemented in four ways:
  • the first mode is: determining, according to the SG and the power_margin, a length of a maximum transport block that the UE can schedule, specifically: using the SG, the power_margin, and a formula:
  • Calculated maximum transport block can schedule the UE long Serving-Grant power-margin
  • the serving Grant indicates the SG
  • K indicates the reference enhanced transport format combination E-TFC block length of the UE
  • the number of tracks, A represents the quantized amplitude ratio of the reference E-TFC, indicating the HARQ offset value. That is, the calculation is performed using the E-DPDCH extrapolation formula. among them, ! ! Indicates rounding of the calculation result.
  • the second mode is: determining, according to the SG and the power_margin, a length of a maximum transport block that the UE can schedule, specifically: calculating, by using the SG, the power_margin and the formula:
  • E-TFC block length ⁇ denotes the number of code channels of the first reference E-TFC
  • j denotes the second code channel number of the second reference E-TFC
  • A denotes the quantization amplitude ratio of the first reference E-TFC
  • ⁇ denotes the first Second reference
  • a fourth mode determining, according to the SG and the power_margin, a length of a maximum transport block that the UE can schedule, specifically: using the SG, the power_margin, and a formula:
  • the number of second code channels, A represents the quantization amplitude ratio of the first reference E-TFC
  • ⁇ represents the quantization amplitude ratio of the second reference E-TFC, indicating the HARQ offset value.
  • L " represents the rounding of the calculation result.
  • the processor first adjusts the dedicated physical control channel DPCCH transmission power of the user equipment UE from the initial power to the first transmission power by using the first power step, and then passes the first power step.
  • the second power step is to adjust the DPCCH transmit power from the first transmit power to the second transmit power, and the transmitter sends the data to the network side device by using the first transmit power or the second transmit power, compared to the prior art.
  • the method for adjusting the transmit power of the DPCCH by using only one power step can adjust the transmit power of the DPCCH by using different power steps for different adjustment stages, thereby further more accurately transmitting the power of the DPCCH, and
  • the signal-to-interference ratio of the DPCCH determined by the base station can be guaranteed (SIR: Signal to Interference)
  • Ratio can converge as quickly as possible to the target signal-to-interference ratio ⁇ r .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un équipement utilisateur (UE), un dispositif côté réseau, un procédé de réglage de puissance et un procédé de détermination de SG. L'UE comprend : un processeur, utilisé pour déterminer une première taille d'étape de puissance, pour utiliser la première taille d'étape de puissance pour régler une puissance de transmission d'un canal de commande physique dédié (DPCCH) d'un UE d'une puissance initiale à une première puissance de transmission, pour déterminer une seconde taille d'étape de puissance qui est différente de la première taille d'étape de puissance, et pour utiliser la seconde taille d'étape de puissance pour régler la puissance de transmission du canal DPCCH de la première puissance de transmission à une seconde puissance de transmission ; et un émetteur connecté au processeur et utilisé pour transmettre des données au dispositif côté réseau par l'intermédiaire de la première puissance de transmission et/ou de la seconde puissance de transmission.
PCT/CN2014/076868 2014-03-17 2014-05-06 Équipement utilisateur (ue), dispositif côté réseau, procédé de réglage de puissance et procédé de détermination de sg WO2015139360A1 (fr)

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PCT/CN2014/076868 WO2015139360A1 (fr) 2014-03-17 2014-05-06 Équipement utilisateur (ue), dispositif côté réseau, procédé de réglage de puissance et procédé de détermination de sg

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