WO2015188387A1 - 一种确定发送功率的方法及用户设备 - Google Patents

一种确定发送功率的方法及用户设备 Download PDF

Info

Publication number
WO2015188387A1
WO2015188387A1 PCT/CN2014/079881 CN2014079881W WO2015188387A1 WO 2015188387 A1 WO2015188387 A1 WO 2015188387A1 CN 2014079881 W CN2014079881 W CN 2014079881W WO 2015188387 A1 WO2015188387 A1 WO 2015188387A1
Authority
WO
WIPO (PCT)
Prior art keywords
random access
access message
max
compensation
equal
Prior art date
Application number
PCT/CN2014/079881
Other languages
English (en)
French (fr)
Inventor
金辉
沈丽
李哲
唐能福
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 CN202010381345.1A priority Critical patent/CN111726875B/zh
Priority to CN201480056071.1A priority patent/CN105637941B/zh
Priority to PCT/CN2014/079881 priority patent/WO2015188387A1/zh
Priority to EP14894590.0A priority patent/EP3148259B1/en
Publication of WO2015188387A1 publication Critical patent/WO2015188387A1/zh
Priority to US15/377,342 priority patent/US9832742B2/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/36TPC 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
    • H04W52/367Power values between minimum and maximum limits, e.g. dynamic range
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/242TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of information technology, and in particular, to a method for determining transmission power and a user equipment.
  • the user equipment (English name: User Equipment, English abbreviation: UE) receives the system broadcast message sent by the base station, and the UE sends a random access message to the base station according to the system broadcast message, so that the UE establishes a connection with the base station.
  • UE User Equipment
  • the transmit power increase value of the two adjacent random access messages is sent during the access attempt.
  • the transmission power is directly determined by the above formula, if the downlink path loss is less than the uplink path loss, the transmission power determined according to the above formula is smaller than the actual required transmission power, thereby causing the random access message to be transmitted according to the determined transmission power.
  • the success rate cannot be sent to the base station, which results in a lower connection between the UE and the base station.
  • the present invention provides a method for determining transmission power and a user equipment, which can improve the success rate of establishing a connection between a UE and a base station.
  • the present invention provides a method for determining transmit power, including:
  • the determining, according to the preset rule, determining a transmit power used for sending a random access message includes:
  • the according to P min ⁇ P initial value + ( N pre - l A + W-1) *P compensation ⁇ , before determining the transmission power used by the random access message, the method further includes:
  • the determining includes:
  • P compensation P MAX - [P initial value + (N pre max — 1) * ⁇ P rampup ] : Determine P—compensation where PMAX - P initial value + (N pre max — 1) * ⁇ P RAMPUP Oh,
  • P compensation PMAX - [P initial value + (N pre max - ⁇ ) * ⁇ P RAMPUP ] Determine P - compensation where P MAX ⁇ P tt start value + (N pre 1) * ⁇ ⁇ X is the current round The number of times of transmission according to the maximum transmission power during a random access attempt.
  • P tt is the step size compensation power
  • P is the transmission power used to send the random access message
  • the AP rampup is the adjacent two in the current round random access attempt.
  • N pre is the number of times the random access message is sent during the current round random access attempt
  • 16 is an integer greater than or equal to 1 and less than or equal to N pre max
  • N pre max is the maximum number of attempts in the current round random access attempt
  • N is the number of trial rounds of the random access message
  • N is an integer greater than or equal to 1.
  • p tt is preset
  • the method also includes:
  • the method further includes: determining «b";
  • the determination includes:
  • P step ⁇ P start value + ( N p re — / Npre — X), determine the P step compensation, where P MA x ⁇ P tt start value + (N pre - l) * AP rampup , X is transmitted according to the maximum transmit power during the current round random access attempt The number of times.
  • the determining, according to the preset rule, determining, by using, the sending power that is used to send the random access message includes:
  • N pre is the number of times the random access message is sent during the current round random access attempt, and ⁇ 16 is greater than or equal to 1 And less than or equal to N pre ma J ⁇ integer
  • N pre max is the maximum number of attempts in the current round random access attempt
  • N is the number of trial rounds of the random access cancellation
  • N is an integer greater than or equal to 1.
  • the determining, according to the preset rule, determining, by using the preset rule, the sending power used to send the random access message includes:
  • N pre is the number of times the random access message is sent during the current round random access attempt, and N is greater than or equal to 1 and less than or equal to N pre ma J ⁇ integer
  • N pre max is the maximum number of attempts during the current round random access attempt
  • N is the number of trial rounds of the random access message
  • N is an integer greater than or equal to 1.
  • is the format offset of the preamble.
  • the method further includes:
  • the cell identifier of the current cell is recorded
  • the transmit power used to send the random access message is determined according to an integer whose number of trial rounds is greater than or equal to 2. .
  • the present invention provides a user equipment, including:
  • a determining unit configured to determine, according to a preset rule, a sending power used to send the random access message
  • a transceiver unit configured to send the random access message to the base station by using the sending power determined by the determining unit.
  • N Dre is the number of times the random access message is sent during the current round random access attempt
  • N Dre is an integer greater than or equal to 1 and less than or equal to N pre max
  • N pre is the current round random access attempt process
  • the maximum number of attempts in the process, N is the number of trial rounds of the random access message, and N is an integer greater than or equal to 1.
  • the device further includes: an acquiring unit;
  • is obtained by the acquisition unit from a non-volatile item.
  • P the transmit power used to send the random access message
  • ⁇ ⁇ is the maximum transmit power
  • ⁇ initial value is the initial transmit power
  • AP rampup is The transmission power increase value of the two random access messages is sent in the current round random access attempt
  • N pre is the number of times the random access message is sent during the current round random access attempt
  • ⁇ 16 is greater than Or equal to 1 and less than or equal to N prema J ⁇ integer
  • N pre max is the maximum number of attempts during the current round of random access attempts
  • N is the random access cancellation
  • the number of trial rounds is greater than or equal to 1 The integer.
  • P tt is preset; v m is obtained from the non-volatile item by the acquisition unit.
  • v m is determined by the determining unit
  • P step compensation ⁇ ? [P ft start value + ( pre 1) * ⁇ pup ] ⁇ / (N pre 1) determined, where
  • the transmit power used where ⁇ is the path loss compensation coefficient, ⁇ is the transmit power used to send the random access message, ⁇ ⁇ is the maximum transmit power, is the initial transmit power, and AP ram is the current round random access attempt process.
  • N pre is the number of times the random access message is sent during the current round random access attempt
  • ⁇ 16 is greater than or equal to 1 and less than or equal to The integer
  • is the maximum number of attempts during the current round of random access attempts
  • is the number of trial rounds of the random access message
  • is an integer greater than or equal to 1.
  • the transmit power used by the message where ⁇ ⁇ is the step size compensation coefficient, ⁇ is the transmit power used to send the random access message, ⁇ ⁇ is the maximum transmit power, and ⁇ initial value is the initial transmit power.
  • is the transmit power increase value of the two random access messages sent in the current round random access attempt
  • N pre is the random access message in the current round random access attempt process.
  • the number of transmissions, ⁇ 16 is greater than or equal to 1 and less than or equal to N pre ma J ⁇ integer
  • N pre is the maximum number of attempts during the current round of random access attempts
  • N is the number of trial rounds of the random access message
  • N is an integer greater than or equal to 1.
  • Pr is determined, where PL is the downlink path loss, ⁇ .
  • an initial receiving target power of the preamble carried by the random access message where ⁇ is a format offset of the preamble.
  • the device further includes: a recording unit;
  • the recording unit is configured to: when the number of trial rounds of the random access message is greater than or equal to 2, record a cell identifier of the current cell;
  • the determining unit is further configured to: when re-entering the cell identified by the cell identifier recorded by the recording unit, and sending the random access message to the base station, the number of trial rounds is greater than or equal to 2 An integer that determines the transmit power used to send the random access message.
  • the device further includes: a deleting unit;
  • the deleting unit is configured to delete the cell identifier recorded by the recording unit when a time when the cell identifier is recorded is greater than or equal to a preset time;
  • the deleting unit is further configured to delete the cell identifier recorded by the recording unit when the user equipment is restarted.
  • the present invention provides a user equipment, including:
  • a processor configured to determine, according to a preset rule, a transmit power used to send a random access message, and a transceiver, configured to send the random access message to the base station by using the transmit power determined by the processor.
  • the processor is specific to the processor
  • P min ⁇ PP ft start value + (N pre - 1) * ⁇ P pup + (N-1) * P compensation ⁇ , determine the transmission power used to transmit the random access message, where, to compensate power, P The transmit power used to send the random access message, P MAX is the maximum transmit power, which is the initial transmit power, and the AP ram is the transmit power of the neighboring random access messages sent during the current round random access attempt.
  • N Dre is the number of times the random access message is sent during the current round random access attempt
  • N Dre is an integer greater than or equal to 1 and less than or equal to N pre max
  • N pre is the current round random access attempt
  • the maximum number of attempts in the process, N is the number of trial rounds of the random access message, and N is an integer greater than or equal to one.
  • e is obtained by the processor from a non-volatile item.
  • the processor is specifically configured to be
  • P min ⁇ P , P + + ( N pre _l) * [AP pup + (N_l) * (N pre _l) * P step earn] ⁇ , determining the transmission power used to transmit the random access message, wherein, P tt is the step size compensation power, P is the transmission power used to send the random access message, ⁇ ⁇ is the maximum transmission power, ⁇ initial value is the initial power dissipation, and AP rampup is sent during the current round random access attempt.
  • N pre is the number of times the random access message is sent during the current round random access attempt
  • ⁇ 16 is greater than or equal to 1 and less than or equal to N prema J ⁇ integer
  • N pre max is the maximum number of attempts during the current round of random access attempts
  • N is the number of trial rounds of the random access cancellation
  • N is an integer greater than or equal to 1.
  • P tt is preset
  • P tte is obtained by the processor from a non-volatile item.
  • ⁇ step length compensation ⁇ _ [ ⁇ initial value + O 1) * ⁇ P I ⁇ determined, of which
  • the p step complement is based on the processor
  • P step compensation ⁇ ? [P ft start value + ( pre - ⁇ ) * ⁇ pup ] ⁇ / (N pre - X) is determined, where
  • X is the number of times of transmission according to the maximum transmission power during the current round random access attempt.
  • the processor is specific to the processor
  • P min ⁇ P MAX , P w + PL* (N-1) * X PL + (N pre - 1) * ⁇ P rampup ⁇ , determining the transmission power used to transmit the random access message, where ⁇ is The road loss compensation coefficient, ⁇ is the transmission power used to send the random access message, ⁇ ⁇ is the maximum transmission power, which is the initial transmission power, and the AP rampup is the adjacent two random times during the current round random access attempt.
  • N pre is the number of times the random access message is sent during the current round random access attempt
  • ⁇ 16 is greater than or equal to 1 and less than or equal to an integer
  • ⁇ workout is in the current round of random access attempts
  • the maximum number of attempts ⁇ is the number of trial rounds of the random access message
  • is an integer greater than or equal to 1.
  • the processor is specific to the processor
  • P min ⁇ P MAX , P tt initial value + (N pre _ l) *[AP pup + AP pup * (N-1) * ⁇ ⁇ ] ⁇ , determining the transmission power used to transmit the random access message,
  • ⁇ ⁇ is the step compensation coefficient
  • is the transmission power used to transmit the random access message
  • ⁇ ⁇ is the maximum transmission power
  • ⁇ initial value is the initial spreading power
  • ⁇ P ram is the current round random access attempt.
  • N pre is the number of times the random access message is sent during the current round random access attempt
  • ⁇ 16 is greater than or equal to 1 and less than or J ⁇ an integer equal to N pre ma
  • N is the current wheel dish pre random access attempts during the maximum number of attempts
  • N is the number of the random access attempt message wheels, N being an integer greater than or equal to 1.
  • is the format offset of the preamble.
  • the processor is further configured to: when the number of trial rounds of the random access message is greater than or equal to 2, record the current cell Cell identification
  • the processor is further configured to: when re-entering the cell identified by the cell identifier, and send the random access message to the base station, determine, according to an integer that is greater than or equal to 2, The transmit power used by the random access message.
  • the processor is further configured to: when the time when the cell identifier is recorded is greater than or equal to a preset time, delete the recorded cell identifier;
  • the processor is further configured to delete the recorded cell identifier when the user equipment is restarted.
  • the method for determining the transmit power and the user equipment provided by the present invention first determine the transmit power used to send the random access message according to the preset rule, and then send the random access message to the base station by using the determined transmit power. Compared with the current determination of the transmission power by the downlink path loss, the present invention can increase the compensation value for the transmission power, and can increase the appropriate amount of compensation for the transmission power when the downlink path loss is less than the uplink path loss, thereby improving the connection between the UE and the base station. Success rate. DRAWINGS
  • FIG. 1 is a flowchart of a method for determining transmit power according to an embodiment of the present invention
  • FIG. 2 is a flowchart of another method for determining transmit power according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of another user equipment according to an embodiment of the present invention. detailed description
  • An embodiment of the present invention provides a method for determining a transmission power, which can improve a success rate of establishing a connection between a UE and a base station. As shown in FIG. 1, the method includes:
  • the UE determines, according to the preset rule, a transmit power used to send the random access message. Specifically, in step 101, the UE determines, according to the preset rule, the transmit power used by the sending random access message after adding the compensation value.
  • P is the transmission power before the compensation value is added
  • PMA X is the maximum transmission power
  • P is the initial transmission power
  • N pre is the number of times the random access message is sent during the current round random access attempt
  • N is greater than or An integer equal to 1 and less than or equal to the N pre leg
  • the N pre leg is the maximum number of attempts during the current round random access attempt
  • the AP rampup is the second random access message sent during the current round random access attempt. Transmit power increase value.
  • the random access message when a connection is established between the UE and the base station through the 4th generation mobile communication technology (4G), the random access message may carry the preamble code. At this point, the initial transmit power of the random access message can pass. Apre determines that PL is the downlink path loss, ⁇ . The initial received target power of the preamble code carried by the random access message, and ⁇ ⁇ is the format offset of the preamble code.
  • the embodiment of the present invention is not limited to the foregoing fourth generation mobile communication technology, and other technologies capable of establishing a connection between the UE and the base station, such as the 2nd Generation mobile communication technology (2G)
  • the embodiment of the present invention is applicable to the 3rd Generation mobile communication technology (3G) and the like.
  • the method may further include: receiving, by the UE, a second system information block (English full name: System Information Block-2, English abbreviation: SIB-2) message broadcast by the base station.
  • SIB-2 System Information Block-2
  • the RACH-CcmfigCommon of the radioResourceConfigCommon field of the SIB-2 message may carry the above PP. , N pre ⁇ pup each corresponding to a specific value.
  • the S I B - 2 message received by the U E may also carry the received power of the reference signal (English full name: Reference Signal Receiving Power, English abbreviation: RSRP).
  • the method may further include: the UE subtracting the RSRP carried in the SIB-2 message from the actually received RSRP to obtain a downlink path loss (PL).
  • PL downlink path loss
  • the UE transmits a random access message to the base station by using the determined transmit power.
  • the step 102 may be: the UE sends a random access message to the base station by using the determined transmit power of the random access message after adding the compensation value.
  • the UE After the UE sends the random access message to the base station according to the transmission power for the first time, if the random access response sent by the base station is not received, the UE increases the transmission power P according to the transmission power increase value ⁇ P ram . And sending the random access message to the base station again according to the increased transmit power, until the random access response sent by the base station or the number of times the random access message is sent reaches the maximum number of transmissions.
  • the UE when the maximum number of transmissions is reached and the random access response sent by the base station is not received, the UE waits for a period of time, and then performs a second round of random access message transmission until the random number sent by the base station is received. Access response.
  • the UE performs the N pre - attack process according to the transmission power increase value ⁇ P rampup for the first time, which is the first round of random access attempt process.
  • the first round of the random access attempt process of the UE is indicated by the non-access stratum (English name: Non-Access Stratum, English abbreviation: NAS) to indicate the access layer (English full name: Access stratum, English abbreviation: AS), Round random access attempt. If the first round random access attempt of the UE fails, the UE may perform a second round and subsequent random access attempts.
  • the second round and subsequent random access attempt process of the UE may be initiated by the AS directly; or may be reported to the NAS after the previous round of random access attempts fails, and the NAS instructs the AS to perform the current round attempt.
  • the method for determining the transmit power provided by the embodiment of the present invention first determines the transmit power used to send the random access message according to the preset rule, and then sends the random access message to the base station by using the determined transmit power. Compared with the current determination of the transmission power by the downlink path loss, the embodiment of the present invention can increase the compensation value for the transmission power, and can increase the appropriate amount of compensation for the transmission power when the downlink path loss is less than the uplink path loss, thereby ensuring that the compensation value is increased according to the increase.
  • the random access message sent by the sending power can be sent to the base station, thereby improving the success rate of establishing a connection between the UE and the base station.
  • the embodiment of the present invention provides another method for determining the transmit power. As shown in FIG. 2, the method includes:
  • the UE determines, according to the preset rule, the transmit power used to send the random access message.
  • the step 201 may be: the UE determines, according to the preset rule, a transmit power used by the sending random access message after adding the compensation value.
  • P s is the compensation power
  • P is the transmission power used to send the random access message
  • P MAX is the maximum transmission power
  • P is the initial transmission power
  • ⁇ ⁇ is sent during the current round random access attempt.
  • the transmit power increase value of two adjacent random access messages N pre is the number of times the random access message is sent during the current round random access attempt, and 16 is an integer greater than or equal to 1 and less than or equal to N pre
  • N pre Max is the maximum number of attempts during the current round of random access attempts
  • N is the number of rounds of random access messages
  • N is an integer greater than or equal to one.
  • the AS when the AS can independently initiate the second round and subsequent random access attempts, the AS records the number of rounds of the current random access attempt by the AS; when the AS needs to perform the second round and later according to the instructions of the NAS.
  • the random access attempt is made, the number of rounds N of the current attempt is sent by the NAS to the AS. It should be noted that the corresponding description of the number of rounds of random access attempts in subsequent embodiments is described. For the description, reference may be made to the corresponding description herein, and details are not described herein.
  • P tt can be preset.
  • the method may further include: the UE acquiring P tt from a non-volatile (English name: Non-Volatile, English abbreviation: NV) item.
  • P s can be configured in advance in the UE.
  • P tt can also be determined according to the actual situation of the UE.
  • the method may further include: determining by the UE.
  • the UE determines that P s may specifically be:
  • P compensation PMA _ [P initial value + Np REMAX _ * ⁇ P ram p U p] , ⁇ angle P compensation, medium,
  • the transmission power can be increased by the above formula.
  • the UE may pre-configure the number of times of transmission according to the maximum transmission power during the current round random access attempt. At this time, the UE determines that P s may specifically be:
  • X is the number of times of transmission according to the maximum transmit power during the current round random access attempt.
  • the UE performs the number of times of transmitting according to the maximum transmit power during the current round random access attempt, and can increase the compensation power of the random access message according to the user requirement, and reduce the required maximum transmit power. The number of transmissions, so that the attempt time to establish a connection between the UE and the base station can be shortened.
  • the transmission power can be compensated (Nl)* by the above formula, and the random access message sent every time in the round is compared with the random access message sent by the corresponding number of the previous round. Both increase P tt .
  • P ⁇ P tt start value + (N P ⁇ - 1) * ⁇ pup then when the second round of Nth pre - X+1 times to send random access messages, the maximum transmit power can be reached, when the second round
  • the transmission is performed according to the maximum transmission power, so that the success rate of establishing a connection between the UE and the base station can be improved.
  • P tte is the step size compensation power
  • P is the transmission power used to send the random access message
  • Pmax is the maximum transmission power, which is the initial transmission power
  • AP ⁇ up is sent twice in the current round random access attempt.
  • N pre current round of random access attempts the number of transmissions during the random access message, N pre greater than or equal to 1 and less than or equal to the integer N pre max
  • N pre max is The maximum number of attempts during the current round of random access attempts
  • N is the number of rounds of random access messages
  • N is an integer greater than or equal to 1.
  • can be preset.
  • the method may further include: acquiring, by the UE, from the non-volatile item. Among them, P tt can pre-empt the # ⁇ in the UE
  • P tt can also be determined according to the actual situation of the UE.
  • the method may further include: determining, by the UE, ⁇ 3 ⁇ 4 .
  • the UE determines that P tt may specifically be:
  • P step compensation ⁇ P ⁇ [P initial value + Shen, MAX - initial ⁇ 1 pre max " rampup °
  • the transmission power can be compensated for (N1)*(N pre -l)*P Mg by the above formula, and the random access message sent every time in the round is random with the previous transmission of the current round. Compared with the access message, the transmission power increases ; ⁇ .
  • the initial value of P ⁇ P tt + (N px - 1) * ⁇ ⁇ pup is satisfied, when the random access message is sent in the second round (ie, the last round of the second round), Maximum transmission power is reached, when the third round and later
  • the transmission is performed according to the maximum transmission power, so that the success rate of establishing a connection between the UE and the base station can be improved.
  • the UE may pre-configure the number of times of transmission according to the maximum transmission power during the current round random access attempt. At this time, the UE determines that P tt can be specifically:
  • P step compensation ⁇ P ⁇ [P initial value + C — X) * ⁇ P I ⁇ — X) , ⁇ angle ⁇ P step "compensation ⁇ " application
  • X is the number of times of transmission according to the maximum transmit power during the current round random access attempt.
  • the number of times of sending according to the maximum transmit power during the current round random access attempt is pre-configured by the UE, and the step compensation power of the random access message is increased according to the user requirement, and the maximum transmit power is reduced. The number of transmissions required, so that the attempt time to establish a connection between the UE and the base station can be shortened.
  • the transmission power can be compensated (Nl)*(N pre -l)*P tt by the above formula, and the random access message sent every time in the round is random with the previous transmission of the current round. Compared with the access message, the transmission power increases ; ⁇ .
  • X is the path loss compensation coefficient
  • P is the transmission power used to send the random access message
  • P MAX is the maximum transmission power
  • P is the initial transmission power
  • is the adjacent transmission in the current round random access attempt.
  • the transmission power increase value of the two random access messages N pre is the number of times the random access message is sent during the current round random access attempt, and N pre is an integer greater than or equal to 1 and less than or equal to N pre max
  • N pre Max is the maximum number of attempts during the current round of random access attempts
  • N is the number of rounds of random access messages
  • N is an integer greater than or equal to one.
  • the path loss compensation coefficient X may be configured in advance in the UE, and may be an integer or a decimal.
  • the road loss compensation coefficient X can be 0.2 0.5 1.3 3 or the like.
  • the transmission power may be compensated for PL*(N-1)*X, the random access message sent every time, and the random access message sent by the corresponding number of previous rounds. In comparison, the transmission power is increased by PL* X
  • ⁇ ⁇ is the step compensation coefficient
  • is the transmit power used to send the random access message
  • ⁇ ⁇ is the maximum transmit power
  • ⁇ initial value is the initial transmit power
  • AP rampup is the transmit phase during the current round random access attempt.
  • N pre is the number of times the random access message is sent during the current round random access attempt
  • N pre is an integer greater than or equal to 1 and less than or equal to N pre max
  • N Pre max is the maximum number of attempts during the current round of random access attempts
  • N is the number of rounds of random access messages
  • N is an integer greater than or equal to 1.
  • the step compensation coefficient ⁇ ⁇ may be configured in advance in the UE, and may be an integer or a decimal.
  • the step compensation coefficient ⁇ ⁇ can be 0.8 1.2 2, 4.5, and so on.
  • the transmission power can be compensated for ⁇ P rampup * (N_ l) * X AP by the above formula, and the random access message sent every time in each round is randomly connected with the corresponding number of previous rounds. The transmit power is increased by ⁇ compared to the incoming message. * ⁇ ⁇
  • the first round of transmission power determined by the above various formulas is the same as the transmission power before the compensation value is increased, and the transmission power before the compensation value is increased can be avoided to transmit the random access message to the base station.
  • the transmission power is still compensated, so that the transmission power of the current UE can be reduced, and the interference to other UEs can be reduced.
  • the random access message when a connection is established between the UE and the base station through 4G, the random access message may carry the preamble.
  • PL is the downlink path loss
  • The initial received target power of the preamble carried by the random access message
  • is the format offset of the preamble.
  • the technology of establishing a connection between a UE and a base station such as 2G technology and 3G technology, is applicable to the embodiment of the present invention.
  • the UE sends the random access message to the base station by using the determined transmit power.
  • the step 202 may be that the UE sends a random access message carrying the premble code to the base station according to the transmission power after the compensation value is increased.
  • the UE After the UE sends the random access message to the base station according to the transmission power for the first time, if the random access response sent by the base station is not received, the UE increases the transmission power and sends the random access message to the base station again. The number of times of receiving the random access response or the random access message sent by the base station reaches the maximum number of transmissions. In the embodiment of the present invention, when the maximum number of transmissions is reached and the random access response sent by the base station is not received, the UE randomly waits for a period of time, and then performs a second round of random access message transmission until receiving the base station transmission. Random access response.
  • the UE records the cell identifier of the current cell.
  • the method further includes: when the time of recording the cell identifier (English full name: Identity, English abbreviation: ID) is greater than or equal to the preset time, the UE deletes the recorded cell identifier.
  • the preset time may be configured in advance by the UE.
  • the UE by deleting the recorded cell ID after the preset time, it is possible to avoid the situation that the uplink path loss and the downlink path loss change, and the UE always sends the random access message according to the transmission power after the compensation value is increased. Therefore, while ensuring a successful connection between the UE and the base station, the transmission power of the current UE is reduced, and interference to other UEs is reduced.
  • the method may further include: when the UE restarts, the UE deletes the recorded cell identifier.
  • the UE determines the transmit power used to send the random access message according to the number of trial rounds being greater than or equal to 2.
  • the UE directly determines, according to the number of trial rounds N, an integer greater than or equal to 2, to determine the transmission after adding the compensation value.
  • the power, and the random access message is sent according to the transmission power after the compensation value is added, the step of transmitting the random access message according to the transmission power before the compensation in the first round can be avoided, so that the attempt time for establishing the connection between the UE and the base station can be shortened.
  • the method for determining the transmit power provided by the embodiment of the present invention first determines the transmit power used to send the random access message according to the preset rule, and then sends the random access message to the base station by using the determined transmit power. Compared with the current determination of the transmission power by the downlink path loss, the embodiment of the present invention can increase the compensation value for the transmission power, and can increase the appropriate amount of compensation for the transmission power when the downlink path loss is less than the uplink path loss, thereby ensuring that the compensation value is increased according to the increase.
  • the random access message sent by the sending power can be sent to the base station, thereby improving the success rate of establishing a connection between the UE and the base station.
  • the method for determining the transmission power provided by the embodiment of the present invention can increase the compensation power of the random access message according to the user requirement by the UE pre-configuring the number of times of transmitting according to the maximum transmission power during the current round random access attempt.
  • the step size of the random access message compensates the power, reduces the number of transmissions required to reach the maximum transmission power, thereby shortening the attempt time for establishing a connection between the UE and the base station; determining the first round of transmission power obtained by the above formulas, The same as the transmission power before the compensation value is added, it can avoid the situation that the transmission power is still compensated when the transmission power before the compensation value is sufficient to transmit the random access message to the base station, thereby reducing the transmission power of the current UE.
  • the interference to other UEs is reduced.
  • By deleting the recorded cell ID after the preset time it is possible to avoid the situation where the uplink path loss and the downlink path loss change, and the UE always sends the random access message according to the transmission power after the compensation value is increased. , so that the connection between the UE and the base station can be successfully established.
  • the transmission power of the current UE is reduced, and the interference to other UEs is reduced.
  • the UE When the UE re-enters the cell identified by the cell ID and sends a random access message to the base station, the UE directly follows the number of trial rounds N is greater than or An integer equal to 2, determining the transmission power after the compensation value is added, and transmitting the random access message according to the transmission power after the compensation value is added, thereby preventing the first round from transmitting the random access according to the transmission power before the compensation.
  • the step of the message so that the attempt time to establish a connection between the UE and the base station can be shortened.
  • the embodiment of the present invention further provides a user equipment, which is used to improve the success rate of establishing a connection between the user equipment and the base station, as shown in the figure.
  • the user equipment includes: a determining unit 31, a transceiver unit 32.
  • the determining unit 31 is configured to determine, according to the preset rule, a transmit power used to send the random access message.
  • the transceiver unit 32 is configured to send a random access message to the base station by using the transmission power determined by the determining unit 31.
  • P s is the compensation power
  • P MAX is the maximum transmission power
  • P is the initial transmission power
  • is the transmission phase during the current round random access attempt.
  • N pre is the number of times the random access message is sent during the current round random access attempt
  • 16 is an integer greater than or equal to 1 and less than or equal to N pre
  • N pre max For the maximum number of attempts during the current round of random access attempts, N is the number of rounds of random access messages, and N is an integer greater than or equal to 1.
  • the user equipment further includes: an acquiring unit 41
  • P tt is acquired by the acquisition unit 41 from the nonvolatile item.
  • P min ⁇ P MAX , Pft start value + ( N pre _l) * [AP pup + (N_l) * (N pre _l) * P step compensation] ⁇ , determine to send random access The transmit power used by the message.
  • P tte is the step size compensation power
  • P is the transmission power used to transmit the random access message
  • Pmax is the maximum transmission power
  • is the adjacent two random transmissions during the current round random access attempt.
  • N pre current round of random access attempts the number of transmissions during the random access message, N pre greater than or equal to 1 and less than or equal to the integer N pre max, N pre max current
  • N is the number of rounds of random access messages, and N is an integer greater than or equal to 1.
  • P ⁇ tt is preset.
  • P tte is obtained from the non-volatile item by the acquisition unit 41.
  • the determining unit 31 is further configured to determine ⁇ .
  • ⁇ - ⁇ Steps, compensation is based on the ⁇ L basis
  • P step compensation ⁇ ⁇ ⁇ ⁇ - [P ft start value + ( pre - ⁇ ) * ⁇ pup ] ⁇ / (N pre - X)
  • X is the number of times of transmission according to the maximum transmission power during the current round random access attempt.
  • X is the path loss compensation coefficient
  • P is the transmission power used to send the random access message
  • P MAX is the maximum transmission power
  • P is the initial transmission power
  • AP rampup is the adjacent transmission in the current round random access attempt.
  • the transmission power increase value of the two random access messages N pre is the number of times the random access message is sent during the current round random access attempt, and N pre is an integer greater than or equal to 1 and less than or equal to N pre max
  • N pre Max is the maximum number of attempts during the current round of random access attempts
  • N is the number of rounds of random access messages
  • N is an integer greater than or equal to one.
  • ⁇ ⁇ is the step compensation coefficient
  • is the transmit power used to send the random access message
  • ⁇ ⁇ is the maximum transmit power
  • ⁇ initial value is the initial transmit power
  • AP rampup is the transmit phase during the current round random access attempt.
  • N pre is the number of times the random access message is sent during the current round random access attempt
  • N pre is an integer greater than or equal to 1 and less than or equal to N pre max
  • N Pre max is the maximum number of attempts during the current round of random access attempts
  • N is the number of rounds of random access messages
  • N is an integer greater than or equal to 1.
  • the initial received target power of the preamble carried by the random access message, and ⁇ is the format offset of the preamble.
  • the user equipment further includes: a recording unit 42
  • the recording unit 42 is configured to record the cell identifier of the current cell when the number of trial rounds of the random access message is greater than or equal to 2.
  • the determining unit 31 is further configured to: when re-entering the cell identified by the cell identifier recorded by the recording unit 42 and send a random access message to the base station, determine to send the random access message according to an integer whose number of trial rounds is greater than or equal to 2. The transmit power used.
  • the user equipment further includes: deleting the unit 43
  • the deleting unit 43 is configured to: when the time for recording the cell identifier is greater than or equal to the preset time, The cell identifier recorded by the recording unit 42 is deleted.
  • the deleting unit 43 is further configured to delete the cell identifier recorded by the recording unit 42 when the user equipment is restarted.
  • the determining unit first determines, according to the preset rule, the sending power used to send the random access message, and then the sending and receiving unit sends the random access message to the base station by using the sending power determined by the determining unit.
  • the embodiment of the present invention can increase the compensation value for the transmission power, and can increase the appropriate amount of compensation for the transmission power when the downlink path loss is less than the uplink path loss, thereby ensuring that the compensation value is increased according to the increase.
  • the random access message sent by the sending power can be sent to the base station, thereby improving the success rate of establishing a connection between the UE and the base station.
  • the user equipment provided by the embodiment of the present invention can pre-configure the number of times of transmitting according to the maximum transmission power during the current round random access attempt by the UE, and can increase the compensation power or random connection of the random access message according to the user demand.
  • the step size of the incoming message compensates for the power, reduces the number of transmissions required to reach the maximum transmit power, and thus shortens the attempt time for establishing a connection between the UE and the base station; the first round of transmit power determined by the above various formulas is increased and compensated
  • the transmission power before the value is the same, and the transmission power can be compensated when the transmission power before the compensation value is sufficient to transmit the random access message to the base station, so that the transmission power of the current UE can be reduced, and the transmission power can be reduced.
  • the interference of the UE by deleting the recorded cell ID after the preset time, it is possible to avoid the change of the uplink path loss and the downlink path loss, and the UE always sends the random access cancellation according to the transmission power after increasing the compensation value, and the case of the packet So that the connection between the UE and the base station can be successfully established.
  • the UE reduces the transmission power of the current UE and reduces the interference to other UEs.
  • the UE directly follows the number of trial rounds N.
  • determining the transmission power after adding the compensation value, and transmitting the random access message according to the transmission power after increasing the compensation value can avoid the step of transmitting the random access message according to the transmission power before the compensation in the first round, Thereby, the attempt time for establishing a connection between the UE and the base station can be shortened.
  • the sending power is determined in the random access process provided in the embodiment of the present invention.
  • the corresponding descriptions of the corresponding units in the device reference may be made to the corresponding descriptions in FIG. 1 and FIG. 2, and details are not described herein again.
  • the embodiment of the present invention further provides a user equipment, which is used to improve the success rate of establishing a connection between the UE and the base station.
  • the user equipment includes: a processor 51, a transceiver 52, The memory 53 is connected to the transceiver 52 and the processor 51, respectively.
  • the processor 51 is configured to determine, according to a preset rule, a transmit power used to send the random access message.
  • the transceiver 51 is configured to send a random access message to the base station by using the transmit power determined by the processor 51.
  • P s is the compensation power
  • P MAX is the maximum transmission power
  • P is the initial transmission power
  • is the adjacent two in the current round random access attempt.
  • N PRE is the number of times the random access message is sent during the current round random access attempt
  • 16 is an integer greater than or equal to 1 and less than or equal to N PRE
  • N PRE max is the current The maximum number of attempts during a random access attempt
  • N is the number of rounds of random access messages
  • N is an integer greater than or equal to 1.
  • the processor 51 is specifically used for the data
  • P min ⁇ P MAX , Pft start value + ( N pre _l)*[AP PUP + (N_l)*(N pre _l)*P step compensation] ⁇ , determine to send random access The transmit power used by the message.
  • P tte is the step size compensation power
  • P is the transmission power used to transmit the random access message
  • Pmax is the maximum transmission power
  • is the adjacent two random transmissions during the current round random access attempt.
  • N pre current round of random access attempts the number of transmissions during the random access message, N pre greater than or equal to 1 and less than or equal to the integer N pre max, N pre max current
  • N is the number of rounds of random access messages, and N is an integer greater than or equal to 1.
  • P ⁇ tt is preset.
  • m is obtained by the processor 51 from the non-volatile item.
  • the processor 51 is specifically used for the data
  • P min ⁇ P MAX , P3 ⁇ 4] Start value + PL*(N- l)*X PL + (N pre - 1)* ⁇ Determine the transmit power used to transmit the random access message.
  • X is the path loss compensation coefficient
  • P is the transmission power used to send the random access message
  • P MAX is the maximum transmission power
  • P is the initial transmission power
  • AP rampup is the adjacent transmission in the current round random access attempt.
  • the transmission power increase value of the two random access messages N pre is the number of times the random access message is sent during the current round random access attempt, and N pre is an integer greater than or equal to 1 and less than or equal to N pre max
  • N pre Max is the maximum number of attempts during the current round of random access attempts
  • N is the number of rounds of random access messages
  • N is an integer greater than or equal to one.
  • ⁇ ⁇ is the step compensation coefficient
  • is the transmit power used to send the random access message
  • ⁇ ⁇ is the maximum transmit power
  • ⁇ initial value is the initial transmit power
  • AP rampup is the transmit phase during the current round random access attempt.
  • N pre is the number of times the random access message is sent during the current round random access attempt
  • N pre is an integer greater than or equal to 1 and less than or equal to N pre max
  • N Pre max is the maximum number of attempts during the current round of random access attempts
  • N is the number of rounds of random access messages
  • N is an integer greater than or equal to 1.
  • the initial received target power of the preamble carried by the random access message, and ⁇ is the format offset of the preamble.
  • the processor 51 is further configured to: when the number of trial rounds of the random access message is greater than or equal to 2, record the cell identifier of the current cell.
  • the processor 51 is further configured to: when re-entering the cell identified by the cell identifier, and send the random access message to the base station, determine, according to the integer that the number of trial rounds is greater than or equal to 2, determine the transmit power used to send the random access message.
  • the processor 51 is further configured to: when the time when the cell identifier is recorded is greater than or equal to the preset time, delete the recorded cell identifier.
  • the processor 51 is further configured to delete the recorded cell identifier when the user equipment is restarted.
  • the processor first determines, according to the preset rule, the transmit power used to send the random access message, and then the transceiver uses the transmit power determined by the processor to send a random access message to the base station.
  • the embodiment of the present invention can increase the compensation value for the transmission power, and can increase the appropriate amount of compensation for the transmission power when the downlink path loss is less than the uplink path loss, thereby ensuring that the compensation value is increased according to the
  • the random access message sent by the sending power can be sent to the base station, thereby improving the success rate of establishing a connection between the UE and the base station.
  • the user equipment provided by the embodiment of the present invention pre-configures the current round by using the UE.
  • the number of times that the maximum transmission power is transmitted during the random access attempt can increase the compensation power of the random access message or the step compensation power of the random access message according to the user's requirement, and reduce the number of transmissions required to reach the maximum transmission power. Therefore, the attempt time for establishing a connection between the UE and the base station can be shortened; the first round of transmission power determined by the above various formulas is the same as the transmission power before the compensation value is increased, and the transmission power before the compensation value is increased can be avoided.
  • the transmission power is still compensated, so that the current UE's transmission power can be reduced and the interference to other UEs can be reduced.
  • the UE By deleting the recorded cell ID after the preset time, it can be avoided.
  • the UE always sends the random access cancellation, packet, and the transmission power according to the added compensation value, so that the connection between the UE and the base station can be successfully established, and the current The transmit power of the UE is reduced to the dry 4 of other UEs; by when the UE enters again
  • the UE directly determines the transmission power after the compensation value is increased according to the number of trial rounds N being greater than or equal to 2, and according to the transmission power after increasing the compensation value.
  • Sending a random access message can avoid the step of transmitting a random access message according to the transmit power before the compensation in the first round, so that the attempt time for establishing a connection between the
  • the method for determining the transmission power and the user equipment provided by the embodiments of the present invention may be applicable to establishing a connection between the user equipment and the base station, but is not limited thereto.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

Landscapes

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

Abstract

本发明公开了一种确定发送功率的方法及用户设备,涉及信息技术领域,可以提高用户设备与基站之间建立连接的成功率。所述方法包括:首先根据预置规则,确定发送随机接入消息采用的发送功率,然后采用确定的发送功率,向基站发送随机接入消息。本发明适用于用户设备与基站之间建立连接。

Description

一种确定发送功率的方法及用户设备 技术领域
本发明涉及信息技术领域,特别涉及一种确定发送功率的方法及用户 设备。
背景技术
用户设备(英文全称: User Equipment, 英文缩写: UE )接收到基站 发送的系统广播消息, UE根据系统广播消息向基站发送随机接入消息, 以便 UE与基站之间建立连接。
目前, UE通过公式 P = min{P丽, Ρ¾¾Λ + (ΝρΓβ- 1) * Δ Ρ_} , 确定发送随机接 入消息的发送功率。其中, Ρ为发送随机接入消息采用的发送功率, Ρ爾为 最大发送功率, 为初始发送功率, 16为当前轮随机接入尝试过程中 随机接入消息的发送次数, APrampup为当前轮随机接入尝试过程中发送相邻 两次随机接入消息的发送功率增加值。 始值通过 始值 = PL+ Pojre + Δρκ得到, PL为下行路损, Ρ。,为随机接入消息携带的前导 (英文: preamble ) 码的 初始接收目标功率, Δ 为前导码的格式偏移。
然而, 直接通过上述公式确定发送功率时, 对于下行路损小于上行路 损的情况, 按照上述公式确定的发送功率小于实际所需的发送功率, 从而 导致按照确定的发送功率发送的随机接入消息无法发送至基站,进而导致 UE与基站之间建立连接的成功率较低。
发明内容
本发明提供一种确定发送功率的方法及用户设备, 可以提高 UE与基 站之间建立连接的成功率。
本发明采用的技术方案为:
第一方面, 本发明提供一种确定发送功率的方法, 包括:
根据预置规则, 确定发送随机接入消息采用的发送功率;
采用确定的所述发送功率, 向基站发送所述随机接入消息。 结合第一方面, 在第一方面的第一种可能的实现方式中, 所述根据预 置规则, 确定发送随机接入消息采用的发送功率, 包括:
根据 P = min{PMAX, Ρ¾¾Λ + (Npre - 1) * Δ Prampup + (N- 1) * } ,确定发送所述随机接 入消息采用的发送功率, 其中, 为补偿功率, P为发送所述随机接入 消息采用的发送功率, PMAX为最大发送功率, 为初始发送功率, APram 为当前轮随机接入尝试过程中发送相邻两次所述随机接入消息的发送功 率增加值, Npre为当前轮随机接入尝试过程中所述随机接入消息的发送次 数, ^16为大于或者等于 1并且小于或者等于 整数, Ν„为当前 轮随机接入尝试过程中的最大尝试次数, Ν为所述随机接入消息的尝试轮 数, Ν为大于或者等于 1的整数。
结合第一方面的第一种可能的实现方式,在第一方面的第二种可能的 实现方式中, 为预置的;
所述根据 P = min{P 始值 + (Npre- l A
Figure imgf000004_0001
+ W- 1)*P补偿 },确定发送所述随 机接入消息采用的发送功率之前, 所述方法还包括:
从非易失性项中, 获取 。
结合第一方面的第一种可能的实现方式,在第一方面的第三种可能的 实现方式中, 所述根据 P = min{P , P誦 + (Npre- l)*APra up + (N- 1)*P补偿 } 确定发 送所述随机接入消息采用的发送功率之前, 所述方法还包括: 确定 S
所述确定 , 包括:
才艮 才居 P补偿 = PMAX - [P初始值 + (Npre max— 1) * Δ Prampup ] : 确 定 P—补偿 其 中 PMAX - P初始值 + (Npre max— 1) * Δ PRAMPUP ϋ ,
才艮 才居 P补偿 = PMAX― [P初始值 + (Npre max -Χ)*Δ PRAMPUP ] 确 定 P—补偿 其 中 PMAX≥Ptt始值 + (Npre 1)*ΔΡ X为当前轮随机接入尝试过程中按照所述最 大发送功率进行发送的次数。
结合第一方面, 在第一方面的第四种可能的实现方式中, 所述根据预 置规则, 确定发送随机接入消息采用的发送功率, 包括: 根据 P = min{PMAX, P謹 + (Npre_l)*[AP pup + (N_l)*(Npre_l)*P步賺] } , 确定发送 所述随机接入消息采用的发送功率, 其中, P tt 为步长补偿功率, P为 发送所述随机接入消息采用的发送功率, 为最大发送功率, 雜为初 始发送功率, APrampup为当前轮随机接入尝试过程中发送相邻两次所述随机 接入消息的发送功率增加值, Npre为当前轮随机接入尝试过程中所述随机 接入消息的发送次数, 16为大于或者等于 1并且小于或者等于 Npre max的整 数, Npre max为当前轮随机接入尝试过程中的最大尝试次数, N为所述随机 接入消息的尝试轮数, N为大于或者等于 1的整数。
结合第一方面的第四种可能的实现方式,在第一方面的第五种可能的 实现方式中, p tt 为预置的;
所述根据 P = min{P P謹 + (Npre_l)*[AP pup + (N_l)*(Npre_l)*P步賺] } , 确定 发送所述随机接入消息采用的发送功率之前, 所述方法还包括:
从非易失性项中, 获取 。
结合第一方面的第四种可能的实现方式,在第一方面的第六种可能的 实 现 方 式 中 , 所 述 根 据
P = min{P , P謹 + (Npre_l)*[AP pup + (N_l)*(Npre_l)*P步賺] } , 确定发送所述随机 接入消息采用的发送功率之前, 所述方法还包括: 确定 «卜《;
所述确定 包括:
根据 P步长补偿 = {P ft始值 + (Npre 1)*ΔΡ pup]}/(Npre 1) ,确定 P步长补偿 '其中,
PM - P初始值 + (Npre max— 1) *△ Prampup; 或 ^
根据 P步长补偿 = {P 始值 + (Npre
Figure imgf000005_0001
/ Npre — X), 确定 P步长补偿 其 中, PMAx≥Ptt始值 + (Npre - l)*APrampup , X为当前轮随机接入尝试过程中按照所 述最大发送功率进行发送的次数。
结合第一方面, 在第一方面的第七种可能的实现方式中, 所述根据预 置规则, 确定发送随机接入消息采用的发送功率, 包括:
根据 P = min{PMAX, P¾]始值 + PL*(N- l)*XPL + (Npre- 1)*ΔΡ 确定发送所述随 机接入消息采用的发送功率, 其中, X 为路损补偿系数, P为发送所述 随机接入消息采用的发送功率, ΡΜΑΧ为最大发送功率, 为初始发送功 率, APrampup为当前轮随机接入尝试过程中发送相邻两次所述随机接入消息 的发送功率增加值, Npre为当前轮随机接入尝试过程中所述随机接入消息 的发送次数, ^16为大于或者等于 1并且小于或者等于 Npre maJ々整数, Npre max 为当前轮随机接入尝试过程中的最大尝试次数, N为所述随机接入消, 的 尝试轮数, N为大于或者等于 1的整数。
结合第一方面, 在第一方面的第八种可能的实现方式中, 所述根据预 置规则, 确定发送随机接入消息采用的发送功率, 包括:
根据 P = min{PMAX , Ptt始值 + (Npre- 1) * [Δ Ρ pup + A Prampup* (N- 1) * ΧΔΡ]} , 确定发送所 述随机接入消息采用的发送功率, 其中, ΧΔΡ为步长补偿系数, Ρ为发送 所述随机接入消息采用的发送功率, ΡΜΑΧ为最大发送功率, Ρ初始值为初始发 送功率, APrampup为当前轮随机接入尝试过程中发送相邻两次所述随机接入 消息的发送功率增加值, Npre为当前轮随机接入尝试过程中所述随机接入 消息的发送次数, N 为大于或者等于 1并且小于或者等于 Npre maJ々整数, N pre max为当前轮随机接入尝试过程中的最大尝试次数, N为所述随机接入 消息的尝试轮数, N为大于或者等于 1的整数。
结合第一方面的第一种可能的实现方式,或者第一方面的第二种可能 的实现方式, 或者第一方面的第三种可能的实现方式, 或者第一方面的第 四种可能的实现方式, 或者第一方面的第五种可能的实现方式, 或者第一 方面的第六种可能的实现方式, 或者第一方面的第七种可能的实现方式, 或者第一方面的第八种可能的实现方式,在第一方面的第九种可能的实现 方式中, 始值是根据 始值 = PL+ P jre + Apr 定的, 其中, PL为下行路损, Ρ。 为所述随机接入消息携带的前导码的初始接收目标功率, Δρκ为所述前导 码的格式偏移。
结合第一方面或者第一方面的第一种可能的实现方式,或者第一方面 的第二种可能的实现方式, 或者第一方面的第三种可能的实现方式, 或者 第一方面的第四种可能的实现方式,或者第一方面的第五种可能的实现方 式, 或者第一方面的第六种可能的实现方式, 或者第一方面的第七种可能 的实现方式, 或者第一方面的第八种可能的实现方式, 或者第一方面的第 九种可能的实现方式, 在第一方面的第十种可能的实现方式中, 所述采用 确定的所述发送功率, 向基站发送所述随机接入消息之后, 所述方法还包 括:
若所述随机接入消息的尝试轮数大于或者等于 2 , 则记录当前小区的 小区标识;
当再次进入所述小区标识所标识的小区,并向所述基站发送所述随机 接入消息时, 按照尝试轮数为大于或者等于 2的整数, 确定发送所述随机 接入消息采用的发送功率。
结合第一方面的第十种可能的实现方式,在第一方面的第十一种可能 的实现方式中, 所述记录当前小区的小区标识之后, 还包括:
当记录所述小区标识的时间大于或者等于预置时间时,删除记录的所 述小区标识; 或者
当重新启动用户设备时, 删除记录的所述小区标识。
第二方面, 本发明提供一种用户设备, 包括:
确定单元, 用于根据预置规则, 确定发送随机接入消息采用的发送功 率;
收发单元, 用于采用所述确定单元确定的所述发送功率, 向基站发送 所述随机接入消息。
结合第二方面, 在第二方面的第一种可能的实现方式中,
所 述 确 定 单 元 , 具 体 用 于 根 据 P = min {P Pft始值 + (Npre - 1) * Δ P pup + (N- 1) * P补偿 },确定发送所述随机接入消息采 用的发送功率, 其中, 为补偿功率, P为发送所述随机接入消息采用 的发送功率, PMAX为最大发送功率, 为初始发送功率, APram 为当前 轮随机接入尝试过程中发送相邻两次所述随机接入消息的发送功率增加 值, NDre为当前轮随机接入尝试过程中所述随机接入消息的发送次数, NDre 为大于或者等于 1并且小于或者等于 Npre max的整数, Npre 为当前轮随机接 入尝试过程中的最大尝试次数, N为所述随机接入消息的尝试轮数, N为 大于或者等于 1的整数。
结合第二方面的第一种可能的实现方式,在第二方面的第二种可能的 实现方式中, 为预置的;
所述装置还包括: 获取单元;
<是由所述获取单元从非易失性项中获取的。
结合第二方面的第一种可能的实现方式,在第二方面的第三种可能的 实现方式中,
P补偿是由所述确定单元根据 P补偿 =PMAX- 始值 + (Np ax- 1)*ΔΡ pup]确定的 ,其 申 '
Figure imgf000008_0001
ϋ ,
Ρ补偿是由所述确定单元根据 Ρ补偿 = ? _ 始值 + (Npremax_X)*AP pup]确定的 , 其中, PMAx≥Ptt始值 + (Npre - l)*APrampup X为当前轮随机接入尝试过程中按照所 述最大发送功率进行发送的次数。
结合第二方面, 在第二方面的第四种可能的实现方式中,
所 述 确 定 单 元 , 具 体 用 于 根 据 P = min{P , P謹 + (Npre_l)*[AP pup + (N_l)*(Npre_l)*P步賺] } , 确定发送所述随机 接入消息采用的发送功率, 其中, P tt 为步长补偿功率, P为发送所述 随机接入消息采用的发送功率, ΡΜΑΧ为最大发送功率, Ρ初始值为初始发逸功 率, APrampup为当前轮随机接入尝试过程中发送相邻两次所述随机接入消息 的发送功率增加值, Npre为当前轮随机接入尝试过程中所述随机接入消息 的发送次数, ^16为大于或者等于 1并且小于或者等于 NpremaJ々整数, Npre max 为当前轮随机接入尝试过程中的最大尝试次数, N为所述随机接入消, 的 尝试轮数, N为大于或者等于 1的整数。
结合第二方面的第四种可能的实现方式,在第二方面的第五种可能的 实现方式中, P tt 为预置的; vm是由所述获取单元从非易失性项中获取的。
结合第二方面的第四种可能的实现方式,在第二方面的第六种可能的 实现方式中,
vm 是 由 所 述 确 定 单 元 根 据
P步长补偿 = {? [Pft始值 + ( pre 1)*ΔΡ pup]}/(Npre 1) 确 定 的 , 其 中 ,
P - P初始值 + (Npre max— 1) *△ Prampup; ϋ ,
Pm 是 由 所 述 确 定 单 元 根 据 P步长补偿 = {? 始值 + (Npre - Χ)*ΔΡ pup]}/(Npre - X) 确 定 的 , 其 中 , PMAX≥Ptt始值 + (Npre 1)*ΔΡ pup , X为当前轮随机接入尝试过程中按照所述最 大发送功率进行发送的次数。
结合第二方面, 在第二方面的第七种可能的实现方式中,
所 述 确 定 单 元 , 具 体 用 于 根 据 P = min{PMAX, VW + PL* (N- 1) * XPL + (Npre - 1) * Δ Prampup } , 确定发送所述随机接入消 息采用的发送功率, 其中, Χ 为路损补偿系数, Ρ为发送所述随机接入 消息采用的发送功率, ΡΜΑΧ为最大发送功率, 为初始发送功率, APram 为当前轮随机接入尝试过程中发送相邻两次所述随机接入消息的发送功 率增加值, Npre为当前轮随机接入尝试过程中所述随机接入消息的发送次 数, ^16为大于或者等于 1并且小于或者等于 整数, Ν„为当前 轮随机接入尝试过程中的最大尝试次数, Ν为所述随机接入消息的尝试轮 数, Ν为大于或者等于 1的整数。
结合第二方面, 在第二方面的第八种可能的实现方式中,
所 述 确 定 单 元 , 具 体 用 于 根 据 P = min{PMAX, Ptt始值 + (Npre_l)*[AP pup + AP pup*(N_l)*XAP]}, 确定发送所述随机接 入消息采用的发送功率, 其中, ΧΔΡ为步长补偿系数, Ρ为发送所述随机 接入消息采用的发送功率, ΡΜΑΧ为最大发送功率, Ρ初始值为初始发迭功率,
△Ρ^η 为当前轮随机接入尝试过程中发送相邻两次所述随机接入消息的 发送功率增加值, Npre为当前轮随机接入尝试过程中所述随机接入消息的 发送次数, ^16为大于或者等于 1并且小于或者等于 Npre maJ々整数, Npre皿为 当前轮随机接入尝试过程中的最大尝试次数, N为所述随机接入消息的尝 试轮数, N为大于或者等于 1的整数。
结合第二方面的第一种可能的实现方式,或者第二方面的第二种可能 的实现方式, 或者第二方面的第三种可能的实现方式, 或者第二方面的第 四种可能的实现方式, 或者第二方面的第五种可能的实现方式, 或者第二 方面的第六种可能的实现方式, 或者第二方面的第七种可能的实现方式, 或者第二方面的第八种可能的实现方式,在第二方面的第九种可能的实现 方式中, 始值是由所述确定单元根据 始值 = PL+ P。 pr 定的, 其中, PL 为下行路损, Ρ。,为所述随机接入消息携带的前导码的初始接收目标功 率, Δρκ为所述前导码的格式偏移。
结合第二方面或者第二方面的第一种可能的实现方式,或者第二方面 的第二种可能的实现方式, 或者第二方面的第三种可能的实现方式, 或者 第二方面的第四种可能的实现方式,或者第二方面的第五种可能的实现方 式, 或者第二方面的第六种可能的实现方式, 或者第二方面的第七种可能 的实现方式, 或者第二方面的第八种可能的实现方式, 或者第二方面的第 九种可能的实现方式, 在第二方面的第十种可能的实现方式中, 所述装置 还包括: 记录单元;
所述记录单元, 用于当所述随机接入消息的尝试轮数大于或者等于 2 时, 记录当前小区的小区标识;
所述确定单元,还用于当再次进入所述记录单元记录的所述小区标识 所标识的小区, 并向所述基站发送所述随机接入消息时, 按照尝试轮数为 大于或者等于 2的整数, 确定发送所述随机接入消息采用的发送功率。
结合第二方面的第十种可能的实现方式,在第二方面的第十一种可能 的实现方式中, 所述装置还包括: 删除单元;
所述删除单元,用于当记录所述小区标识的时间大于或者等于预置时 间时, 删除所述记录单元记录的所述小区标识; 所述删除单元, 还用于当该用户设备重新启动时, 删除所述记录单元 记录的所述小区标识。
第三方面, 本发明提供一种用户设备, 包括:
处理器,用于根据预置规则,确定发送随机接入消息采用的发送功率; 收发器, 用于采用所述处理器确定的所述发送功率, 向基站发送所述 随机接入消息。
结合第三方面, 在第三方面的第一种可能的实现方式中,
所 述 处 理 器 , 具 体 用 于 根 据
P = min {P Pft始值 + (Npre - 1) * Δ P pup + (N- 1) * P补偿 },确定发送所述随机接入消息采 用的发送功率, 其中, 为补偿功率, P为发送所述随机接入消息采用 的发送功率, PMAX为最大发送功率, 为初始发送功率, APram 为当前 轮随机接入尝试过程中发送相邻两次所述随机接入消息的发送功率增加 值, NDre为当前轮随机接入尝试过程中所述随机接入消息的发送次数, NDre 为大于或者等于 1并且小于或者等于 Npre max的整数, Npre 为当前轮随机接 入尝试过程中的最大尝试次数, N为所述随机接入消息的尝试轮数, N为 大于或者等于 1的整数。
结合第三方面的第一种可能的实现方式,在第三方面的第二种可能的 实现方式中, 为预置的;
e是由所述处理器从非易失性项中获取的。
结合第三方面的第一种可能的实现方式,在第三方面的第三种可能的 实现方式中,
P补偿是由所述处理器根据 P补偿 = ΡΜΑχ - 始值 + (NP X- 1) * Δ Ρ pup]确定的, 其 申 ' ΡΜ - Ρ初始值 + (Npre max— 1) *△ Prampup; ϋ ,
Ρ补偿是由所述处理器根据 Ρ补偿 = PMAX- [Ptt始值 + (Νρ χ- Χ) * Δ Ρ pup]确定的, 其 中, PMAX≥Ptt始值 + ( pre - l) * A Prampup X为当前轮随机接入尝试过程中按照所述 最大发送功率进行发送的次数。
结合第三方面, 在第三方面的第四种可能的实现方式中, 所 述 处 理 器 , 具 体 用 于 根 据
P = min{P , P謹 + (Npre_l)*[AP pup + (N_l)*(Npre_l)*P步賺] } , 确定发送所述随机 接入消息采用的发送功率, 其中, P tt 为步长补偿功率, P为发送所述 随机接入消息采用的发送功率, ΡΜΑΧ为最大发送功率, Ρ初始值为初始发逸功 率, APrampup为当前轮随机接入尝试过程中发送相邻两次所述随机接入消息 的发送功率增加值, Npre为当前轮随机接入尝试过程中所述随机接入消息 的发送次数, ^16为大于或者等于 1并且小于或者等于 NpremaJ々整数, Npre max 为当前轮随机接入尝试过程中的最大尝试次数, N为所述随机接入消, 的 尝试轮数, N为大于或者等于 1的整数。
结合第三方面的第四种可能的实现方式,在第三方面的第五种可能的 实现方式中, P tt 为预置的;
P tte是由所述处理器从非易失性项中获取的。
结合第三方面的第四种可能的实现方式,在第三方面的第六种可能的 实现方式中,
p 是 由 所 述 处 理 器 根 据
Ρ步长补偿 = {ΡΜ _ [Ρ初始值 + O 1) *△ P I ^ 确 定 的 , 其 中 ,
PMA - P初始值 + (Npre max _ 1) * Δ PRAMPUP ϋ ,
p步长补 是 由 所 述 处 理 器 根 据
P步长补偿 = {? [Pft始值 + ( pre - Χ)*ΔΡ pup]}/(Npre - X) 确 定 的 , 其 中 ,
ΡΜΛΧ≥Ρ™ + (Npremax-D*APRAMPUP , X为当前轮随机接入尝试过程中按照所述最 大发送功率进行发送的次数。
结合第三方面, 在第三方面的第七种可能的实现方式中,
所 述 处 理 器 , 具 体 用 于 根 据
P = min{PMAX, Pw + PL* (N- 1) * XPL + (Npre - 1) * Δ Prampup } , 确定发送所述随机接入消 息采用的发送功率, 其中, Χ 为路损补偿系数, Ρ为发送所述随机接入 消息采用的发送功率, ΡΜΑΧ为最大发送功率, 为初始发送功率, APrampup 为当前轮随机接入尝试过程中发送相邻两次所述随机接入消息的发送功 率增加值, Npre为当前轮随机接入尝试过程中所述随机接入消息的发送次 数, ^16为大于或者等于 1并且小于或者等于 整数, Ν„为当前 轮随机接入尝试过程中的最大尝试次数, Ν为所述随机接入消息的尝试轮 数, Ν为大于或者等于 1的整数。
结合第三方面, 在第三方面的第八种可能的实现方式中,
所 述 处 理 器 , 具 体 用 于 根 据
P = min{PMAX, Ptt始值 + (Npre_ l) *[AP pup + AP pup* (N- 1) *ΧΔΡ]}, 确定发送所述随机接 入消息采用的发送功率, 其中, ΧΔΡ为步长补偿系数, Ρ为发送所述随机 接入消息采用的发送功率, Ρμαχ为最大发送功率, Ρ初始值为初始发迭功率, △Pram 为当前轮随机接入尝试过程中发送相邻两次所述随机接入消息的 发送功率增加值, Npre为当前轮随机接入尝试过程中所述随机接入消息的 发送次数, ^16为大于或者等于 1并且小于或者等于 Npre maJ々整数, Npre皿为 当前轮随机接入尝试过程中的最大尝试次数, N为所述随机接入消息的尝 试轮数, N为大于或者等于 1的整数。
结合第三方面的第一种可能的实现方式,或者第三方面的第二种可能 的实现方式, 或者第三方面的第三种可能的实现方式, 或者第三方面的第 四种可能的实现方式, 或者第三方面的第五种可能的实现方式, 或者第三 方面的第六种可能的实现方式, 或者第三方面的第七种可能的实现方式, 或者第三方面的第八种可能的实现方式,在第三方面的第九种可能的实现 方式中, P娜值是由所述处理器根据 始值 = PL+ P jre pr 定的, 其中, PL为 下行路损, P。 为所述随机接入消息携带的前导码的初始接收目标功率, Δρκ为所述前导码的格式偏移。
结合第三方面或者第三方面的第一种可能的实现方式,或者第三方面 的第二种可能的实现方式, 或者第三方面的第三种可能的实现方式, 或者 第三方面的第四种可能的实现方式,或者第三方面的第五种可能的实现方 式, 或者第三方面的第六种可能的实现方式, 或者第三方面的第七种可能 的实现方式, 或者第三方面的第八种可能的实现方式, 或者第三方面的第 九种可能的实现方式, 在第三方面的第十种可能的实现方式中, 所述处理器, 还用于当所述随机接入消息的尝试轮数大于或者等于 2 时, 记录当前小区的小区标识;
所述处理器, 还用于当再次进入所述小区标识所标识的小区, 并向所 述基站发送所述随机接入消息时,按照尝试轮数为大于或者等于 2的整数, 确定发送所述随机接入消息采用的发送功率。
结合第三方面的第十种可能的实现方式,在第三方面的第十一种可能 的实现方式中,
所述处理器,还用于当记录所述小区标识的时间大于或者等于预置时 间时, 删除记录的所述小区标识;
所述处理器, 还用于当所述用户设备重新启动时, 删除记录的所述小 区标识。
本发明提供的确定发送功率的方法及用户设备, 首先根据预置规则, 确定发送随机接入消息采用的发送功率, 然后采用确定的所述发送功率, 向基站发送所述随机接入消息。与目前直接通过下行路损确定发送功率相 比,本发明通过为发送功率增加补偿值,能够当下行路损小于上行路损时, 为发送功率增加适量补偿, 从而提高 UE与基站之间建立连接的的成功率。 附图说明
为了更清楚地说明本发明或现有技术中的技术方案,下面将对本发明 或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描 述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其它的附图。
图 1为本发明实施例中一种确定发送功率的方法流程图;
图 2为本发明实施例中另一种确定发送功率的方法流程图;
图 3为本发明实施例中一种用户设备的结构示意图;
图 4为本发明实施例中另一种用户设备的结构示意图;
图 5为本发明实施例中另一种用户设备的结构示意图。 具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进 行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没 有做出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的 范围。
本发明实施例提供一种确定发送功率的方法, 能够提高 UE与基站之 间建立连接的成功率, 如图 1所示, 所述方法包括:
101、 UE根据预置规则, 确定发送随机接入消息采用的发送功率。 具体地, 步骤 101可以为, UE根据预置规则, 确定增加补偿值后的发 送随机接入消息采用的发送功率。
UE可以通过 P = min{PMAX , Ptt + (Npre_ l) * A Prampup} ,确定增加补偿值前的发 送功率。 其中, P为增加补偿值前的发送功率, PMAX为最大发送功率, P初始值 为初始发送功率, Npre为当前轮随机接入尝试过程中随机接入消息的发送 次数, N 为大于或者等于 1并且小于或者等于 Npre 腿的整数, Npre 腿为 当 前轮随机接入尝试过程中的最大尝试次数, APrampup为当前轮随机接入尝试 过程中发送相邻两次随机接入消息的发送功率增加值。
对于本发明实施例, 当 UE与基站之间通过第四代移动通信技术( the 4 Generation mobile communication technology, 4G )建立连接时, 随机接入 消息中可以携带有 preamble码。 此时, 随机接入消息的初始发送功率 可以通过
Figure imgf000015_0001
Apre进行确定, PL为下行路损, Ρ。,为随机接入消 息携带的 preamble码的初始接收目标功率, Δρκ为 preamble码的格式偏移。
需要说明的是, 本发明实施例并不局限于上述第四代移动通信技术, 其他能够实现 UE与基站之间建立连接的技术, 例如第二代移动通信技术 ( the 2nd Generation mobile communication technology, 2G ) 及第三代移 动通信技术 ( the 3rd Generation mobile communication technology, 3G ) 等, 均适用本发明实施例。 对于本发明实施例, 步骤 101之前, 还可以包括: UE接收基站广播的 第二系统信息块(英文全称: System Information Block-2 ,英文缩写: SIB-2 ) 消 息 。 其 中 , SIB-2 消 息 的 radioResourceConfigCommon字 段 的 RACH-CcmfigCommon中, 可以携带有上述 P P。 、 Npre ΔΡ pup各自 对应的具体数值。
对于本发明实施例, U E接收的 S I B - 2消息中还可以携带有参考信号的 接收功率(英文全称: Reference Signal Receiving Power,英文缩写: RSRP )。 此时, 步骤 101之前, 还可以包括: UE将 SIB-2消息中携带的 RSRP与实际 接收到的 RSRP进行相减, 得到下行路损 ( PL )。
102 UE采用确定的发送功率, 向基站发送随机接入消息。
具体地, 步骤 102可以为: UE采用确定的增加补偿值后的发送随机接 入消息采用的发送功率, 向基站发送随机接入消息。
对于本发明实施例, 当 UE首次按照发送功率, 向基站发送随机接入 消息后, 若未接收到基站发送的随机接入响应, 则 UE按照发送功率增加 值△ Pram 增大发送功率 P , 并按照增大后的发送功率再次向基站发送随机 接入消息,直至接收到基站发送的随机接入响应或者随机接入消息的发送 次数达到最大发送次数。 在本发明实施例中, 当达到最大发送次数并且仍 未接收到基站发送的随机接入响应时, UE等待一段时间后, 进行随机接 入消息的第二轮发送, 直至接收到基站发送的随机接入响应。
需要说明的是, UE首次按照发送功率增加值 Δ Prampup进行 Npre 次尝试 的过程, 为第一轮随机接入尝试过程。 其中, UE的第一轮随机接入尝试 过程由非接入层 (英文全称: Non-Access Stratum, 英文缩写: NAS ) 指 示接入层 (英文全称: Access stratum, 英文缩写: AS ), 进行本轮随机接 入尝试。 若 UE第一轮随机接入尝试失败, 则 UE可以进行第二轮及以后的 随机接入尝试。 其中, UE的第二轮及以后的随机接入尝试过程可以直接 由 AS自主发起; 也可以在前一轮随机接入尝试失败后, 向 NAS汇报, 并 由 NAS指示 AS进行本轮尝试。 本发明实施例提供的确定发送功率的方法, 首先根据预置规则, 确定 发送随机接入消息采用的发送功率, 然后采用确定的发送功率, 向基站发 送随机接入消息。 与目前直接通过下行路损确定发送功率相比, 本发明实 施例通过为发送功率增加补偿值, 能够当下行路损小于上行路损时, 为发 送功率增加适量补偿,从而可以保证按照增加补偿值的发送功率发送的随 机接入消息能够发送至基站, 进而可以提高 U E与基站之间建立连接的的 成功率。
作为对图 1所示方法的具体说明, 本发明实施例提供另一种确定发送 功率的方法, 如图 2所示, 所述方法包括:
201 UE根据预置规则, 确定发送随机接入消息采用的发送功率。 具体地, 步骤 201可以为, UE根据预置规则, 确定增加补偿值后的发 送随机接入消息采用的发送功率。
需要说明的是,本发明实施例中对于增加补偿值前的发送功率的相应 描述, 可以参考步骤 101中的对应描述, 在此不再赘述。
可 选 地 , 步 骤 201 具 体 可 以 为 , UE 根 据 P = min {P Pft始值 + (Npre - 1) * Δ P pup + (N- 1) * P补偿 },确定发送随机接入消息采用的 发送功率。
其中, P s为补偿功率, P为发送随机接入消息采用的发送功率, PMAX 为最大发送功率, P初始值为初始发送功率, Δ Ρ^^ρ为当前轮随机接入尝试过 程中发送相邻两次随机接入消息的发送功率增加值, Npre为当前轮随机接 入尝试过程中随机接入消息的发送次数, 16为大于或者等于 1并且小于或 者等于 Npre 的整数, Npre max为当前轮随机接入尝试过程中的最大尝试次 数, N为随机接入消息的尝试轮数, N为大于或者等于 1的整数。
对于本发明实施例, 当 AS可以自主发起第二轮及以后的随机接入尝 试时, 由 AS自主记录当前随机接入尝试的轮数 N; 当 AS需要根据 NAS的 指示进行第二轮及以后的随机接入尝试时, 由 NAS向 AS发送当前尝试的 轮数 N。 需要说明的是, 后续实施例中对于随机接入尝试的轮数的相应描 述, 可以参考此处对应描述, 后续不再赘述。
对于本发明实施例, Ptt 可以为预置的。 此时, 步骤 201之前, 还可以 包括: UE从非易失性 (英文全称: Non- Volatile, 英文缩写: NV ) 项中, 获取 Ptt 。 其中, P s可以在 UE中预先进行配置。
对于本发明实施例, Ptt 还可以根据 UE的实际情况确定得到。 此时, 步骤 201之前, 还可以包括: UE确定 。
对于本发明 实施例 , UE确 定 P s具体可 以 为 : UE根据
P补偿 =PMA _[P初始值+ NpREMAX _ *△PrampUp] , ^角 P补偿 , 中 ,
Ρ ― Ρ初始值 + (Npre max _ 1) * Δ PRAMPUP
对于本发明实施例, 通过上述公式可以为发送功率增加补偿
(N-l)* , 每轮中每次发送的随机接入消息, 与前一轮的对应次数发送的 随机接入消息相比, 发送功率均增加 Ptt 。 在本发明实施例中, 若满足 ΡΜΑχ≥Ptt始值 + (ΝΡ∞- 1)*ΔΡ醒 pup , 则当第二轮第 Npre腿次 (即第二轮最后一次) 发送随机接入消息时, 即可达到最大发送功率, 当第三轮及以后发送随机 接入消息时, 均按照最大发送功率进行发送, 从而可以提高 UE与基站之 间建立连接的成功率。
进一步地, UE可以预先配置当前轮随机接入尝试过程中按照最大发 送功率进行发送的次数。 此时, UE确定 P s具体可以为: UE根据
P补偿 = P ― [P初始值 +
Figure imgf000018_0001
中 ,
PMAX≥Ptt始值 + (Npremax-l)*APrampup, X为当前轮随机接入尝试过程中按照最大发 送功率进行发送的次数。 在本发明实施例中, 通过 UE预先配置当前轮随 机接入尝试过程中按照最大发送功率进行发送的次数, 能够根据用户需 求, 增大随机接入消息的补偿功率, 减少达到最大发送功率所需的发送次 数, 从而可以缩短 UE与基站之间建立连接的尝试时间。
对于本发明实施例, 通过上述公式可以为发送功率增加补偿 (N-l)* , 每轮中每次发送的随机接入消息, 与前一轮的对应次数发送的 随机接入消息相比, 发送功率均增加 Ptt 。 在本发明实施例中, 若满足 P ≥Ptt始值 + (NP∞- 1)*ΔΡ pup , 则当第二轮第 Npre - X+1次发送随机接入消息 时, 即可达到最大发送功率, 当第二轮第 Npremax-X+1次以后发送随机接入 消息时, 均按照最大发送功率进行发送, 从而可以提高 UE与基站之间建 立连接的成功率。
可 替 换 地 , 步 骤 201 还 可 以 为 , UE 根 据 P = min{PMAX, Pft始值 + (Npre_l)*[AP pup + (N_l)*(Npre_l)*P步长补偿] } , 确定发送随机接入 消息采用的发送功率。
其中, P tte为步长补偿功率, P为发送随机接入消息采用的发送功 率, Pmax为最大发送功率, 为初始发送功率, AP^up为当前轮随机接 入尝试过程中发送相邻两次随机接入消息的发送功率增加值, Npre为当前 轮随机接入尝试过程中随机接入消息的发送次数, Npre为大于或者等于 1 并且小于或者等于 Npre max的整数, Npre max为当前轮随机接入尝试过程中的 最大尝试次数, N为随机接入消息的尝试轮数, N为大于或者等于 1的整 数。
对于本发明实施例, ? ;^可以为预置的。 此时, 步骤 201之前, 还可 以包括: UE从非易失性项中, 获取 。 其中, P tt 可以在 UE中预先 ϋ#西己
对于本发明实施例, P tt 还可以根据 UE的实际情况确定得到。此时, 步骤 201之前, 还可以包括: UE确定
对于本发明 实施例 , UE确 定 P tt 具体可以 为 : UE根据
P步长补偿 = {P ― [P初始值 +
Figure imgf000019_0001
申 , MAX ― 初始 ^ 1 pre max " rampup °
对于本发明实施例, 通过上述公式可以为发送功率增加补偿 (N-l)*(Npre-l)*P Mg,每轮中每次发送的随机接入消息, 与当前轮的前一次 发送的随机接入消息相比, 发送功率均增加 ;^。 在本发明实施例中, 若满足 P ≥Ptt始值 + (Np x- 1)*ΔΡ pup, 则当第二轮第 ^ (即第二轮最后 一次)发送随机接入消息时, 即可达到最大发送功率, 当第三轮及以后发 送随机接入消息时, 均按照最大发送功率进行发送, 从而可以提高 UE与 基站之间建立连接的成功率。
进一步地, UE可以预先配置当前轮随机接入尝试过程中按照最大发 送功率进行发送的次数。 此时, UE确定 P tt 具体可以为: 根据
P步长补偿 = {P ― [P初始值 + C — X) *△ P I ^ — X) , ^角 ^ P步" 补偿 ^" 申 ,
PMAX≥Ptt始值 + (Npremax-l)*APrampup , X为当前轮随机接入尝试过程中按照最大发 送功率进行发送的次数。 在本发明实施例中, 通过 UE预先配置当前轮随 机接入尝试过程中按照最大发送功率进行发送的次数, 能够根据用户需 求, 增大随机接入消息的步长补偿功率, 减少达到最大发送功率所需的发 送次数, 从而可以缩短 UE与基站之间建立连接的尝试时间。
对于本发明实施例, 通过上述公式可以为发送功率增加补偿 (N-l)*(Npre-l)*P tt ,每轮中每次发送的随机接入消息, 与当前轮的前一次 发送的随机接入消息相比, 发送功率均增加 ;^。 在本发明实施例中, 若满足 PMAX > Ptt始值 + (Npremax- 1)*ΔΡ pup, 则当第二轮第 Np x- X+1次发送随机接 入消息时, 即可达到最大发送功率, 当第二轮第 Npremax-X+1次以后发送随 机接入消息时, 均按照最大发送功率进行发送, 从而可以提高 UE与基站 之间建立连接的成功率。 其中, X为每轮中按照最大发送功率进行发送的 次数。
可 替 换 地 , 步 骤 201 还 可 以 为 , UE 根 据 P = min{PMAX, P¾]始值 + PL*(N- l)*XPL + (Npre- 1)*ΔΡ pup} , 确定发送随机接入消息采 用的发送功率。
其中, X 为路损补偿系数, P为发送随机接入消息采用的发送功率, PMAX为最大发送功率, P初始值为初始发送功率, ΔΡ^ 为当前轮随机接入尝 试过程中发送相邻两次随机接入消息的发送功率增加值, Npre为当前轮随 机接入尝试过程中随机接入消息的发送次数, Npre为大于或者等于 1并且小 于或者等于 Npre max的整数, Npre max为当前轮随机接入尝试过程中的最大尝 试次数, N为随机接入消息的尝试轮数, N为大于或者等于 1的整数。 对于本发明实施例, 路损补偿系数 X 可以在 UE中预先进行配置, 可 以为整数或小数。 例如, 路损补偿系数 X 可以为 0.2 0.5 1.3 3等。 在 本发明实施例中, 通过上述公式可以为发送功率增加补偿 PL* (N- 1) * X , 每轮每次发送的随机接入消息,与前一轮的对应次数发送的随机接入消息 相比, 发送功率均增加 PL* X
可 替 换 地 , 步 骤 201 还 可 以 为 , UE 根 据 P = min{PMAX, Ptt始值 + (Npre- 1) *[Δ Ρ pup + A P pup* (N- 1) *ΧΔΡ]} , 确定发送随机接入消 息采用的发送功率。
其中, ΧΔΡ为步长补偿系数, Ρ为发送随机接入消息采用的发送功率, ΡΜΑΧ为最大发送功率, Ρ初始值为初始发送功率, A Prampup为当前轮随机接入尝 试过程中发送相邻两次随机接入消息的发送功率增加值, Npre为当前轮随 机接入尝试过程中随机接入消息的发送次数, Npre为大于或者等于 1并且小 于或者等于 Npre max的整数, Npre max为当前轮随机接入尝试过程中的最大尝 试次数, N为随机接入消息的尝试轮数, N为大于或者等于 1的整数。
对于本发明实施例, 步长补偿系数 ΧΔΡ可以在 UE中预先进行配置, 可 以为整数或小数。 例如, 步长补偿系数 ΧΔΡ可以为 0.8 1.2 2、 4.5等。 在 本发明 实施例 中 , 通过上述公式可以 为发送功率增加补偿 △Prampup* (N_ l) * XAP , 每轮每次发送的随机接入消息, 与前一轮的对应次数发 送的随机接入消息相比, 发送功率均增加 Δ
Figure imgf000021_0001
* ΧΔΡ
对于本发明实施例, 通过上述各个公式确定得到的第一轮发送功率, 均与增加补偿值前的发送功率相同,能够避免当通过增加补偿值前的发送 功率足以将随机接入消息发送给基站时, 仍然对发送功率进行补偿的情 况, 从而可以降低当前 UE的发送功率, 减少对其他 UE的干扰。
对于本发明实施例, 当 UE与基站之间通过 4G建立连接时, 随机接入 消息中可以携带有前导码。 此时, 始值可以是根据 始值= ?1^。 确定 的。 其中, PL为下行路损, Ρ。,为随机接入消息携带的前导码的初始接收 目标功率, Δ 为前导码的格式偏移。 现 UE与基站之间建立连接的技术, 例如 2G技术及 3G技术等, 均适用本发 明实施例。
202、 UE采用确定的发送功率, 向基站发送随机接入消息。
具体地, 步骤 202可以为, UE按照增加补偿值后的发送功率, 向基站 发送携带 premble码的随机接入消息。
对于本发明实施例, 当 UE首次按照发送功率, 向基站发送随机接入 消息后, 若未接收到基站发送的随机接入响应, 则 UE增大发送功率, 再 次向基站发送随机接入消息,直至接收到基站发送的随机接入响应或者随 机接入消息的发送次数达到最大发送次数。 在本发明实施例中, 当达到最 大发送次数并且仍未接收到基站发送的随机接入响应时, UE随机等待一 段时间后, 进行随机接入消息的第二轮发送, 直至接收到基站发送的随机 接入响应。
203、 若随机接入消息的尝试轮数大于或者等于 2 , 则 UE记录当前小 区的小区标 i只。
可选地, 步骤 203之后, 还可以包括: 当记录小区标识 (英文全称: Identity, 英文缩写: ID ) 的时间大于或者等于预置时间时, UE删除记录 的小区标识。 其中, 预置时间可以由 UE预先进行配置。
对于本发明实施例, 通过在预置时间后删除记录的小区 ID , 能够避免 当上行路损与下行路损发生改变, 而 UE始终按照增加补偿值后的发送功 率发送随机接入消息的情况, 从而可以在保证 UE与基站之间成功建立连 接的同时, 降低当前 UE的发送功率, 减少对其他 UE的干扰。
可替换地, 步骤 203之后, 还可以包括: 当 UE重新启动时, UE删除 记录的小区标识。
204、 当 UE再次进入小区标识所标识的小区, 并向基站发送随机接入 消息时, UE按照尝试轮数为大于或者等于 2的整数, 确定发送随机接入消 息采用的发送功率。 对于本发明实施例, 通过当 UE再次进入小区 ID所标识的小区, 并向 基站发送随机接入消息时, UE直接按照尝试轮数 N为大于或者等于 2的整 数, 确定增加补偿值后的发送功率, 并按照增加补偿值后的发送功率发送 随机接入消息,能够避免第一轮按照补偿前的发送功率发送随机接入消息 的步骤, 从而可以缩短 UE与基站之间建立连接的尝试时间。
本发明实施例提供的确定发送功率的方法, 首先根据预置规则, 确定 发送随机接入消息采用的发送功率, 然后采用确定的发送功率, 向基站发 送随机接入消息。 与目前直接通过下行路损确定发送功率相比, 本发明实 施例通过为发送功率增加补偿值, 能够当下行路损小于上行路损时, 为发 送功率增加适量补偿,从而可以保证按照增加补偿值的发送功率发送的随 机接入消息能够发送至基站, 进而可以提高 UE与基站之间建立连接的成 功率。
进一步地, 本发明实施例提供的确定发送功率的方法, 通过 UE预先 配置当前轮随机接入尝试过程中按照最大发送功率进行发送的次数,能够 根据用户需求,增大随机接入消息的补偿功率或随机接入消息的步长补偿 功率, 减少达到最大发送功率所需的发送次数, 从而可以缩短 UE与基站 之间建立连接的尝试时间; 通过上述各个公式确定得到的第一轮发送功 率, 均与增加补偿值前的发送功率相同, 能够避免当通过增加补偿值前的 发送功率足以将随机接入消息发送给基站时,仍然对发送功率进行补偿的 情况, 从而可以降低当前 UE的发送功率, 减少对其他 UE的干扰; 通过在 预置时间后删除记录的小区 ID , 能够避免当上行路损与下行路损发生改 变, 而 UE始终按照增加补偿值后的发送功率发送随机接入消息的情况, 从而可以在保证 UE与基站之间成功建立连接的同时, 降低当前 UE的发送 功率, 减少对其他 UE的干 4尤; 通过当 UE再次进入小区 ID所标识的小区, 并向基站发送随机接入消息时, UE直接按照尝试轮数 N为大于或者等于 2 的整数, 确定增加补偿值后的发送功率, 并按照增加补偿值后的发送功率 发送随机接入消息,能够避免第一轮按照补偿前的发送功率发送随机接入 消息的步骤, 从而可以缩短 U E与基站之间建立连接的尝试时间。 进一步地, 作为对图 1及图 2所示方法的实现, 本发明实施例还提供 了一种用户设备, 用于提高用户设备与基站之间建立连接的成功率, 如图
3所示, 所述用户设备包括: 确定单元 31、 收发单元 32
确定单元 31, 用于根据预置规则, 确定发送随机接入消息采用的发送 功率。
收发单元 32, 用于采用确定单元 31确定的发送功率, 向基站发送随机 接入消息。
确 定 单 元 31 , 具 体 用 于 根 据 P = min {P Pft始值 + (Npre - 1) * Δ P pup + (N- 1) * P补偿 },确定发送随机接入消息采用的 发送功率。
其中, P s为补偿功率, P为发送随机接入消息采用的发送功率, PMAX 为最大发送功率, P初始值为初始发送功率, ΔΡ^^ρ为当前轮随机接入尝试过 程中发送相邻两次随机接入消息的发送功率增加值, Npre为当前轮随机接 入尝试过程中随机接入消息的发送次数, 16为大于或者等于 1并且小于或 者等于 Npre 的整数, Npre max为当前轮随机接入尝试过程中的最大尝试次 数, N为随机接入消息的尝试轮数, N为大于或者等于 1的整数。
可选地, 为预置的。
进一步地, 如图 4所示, 所述用户设备还包括: 获取单元 41
Ptt 是由获取单元 41从非易失性项中获取的。
可替换地 , P补偿是由确定单元 31根据 P补偿 = P - 始值 + (Npre 1) * Δ P 确定的, 其中, PMAX≥Ptt始值 + ( pre 1)*ΔΡ
可替换地 , P补偿是由确定单元 31根据 P补偿 = P - [Ptt始值 + (Npre - Χ)*ΔΡ 确定的, 其中, PMAX≥Ptt始值 + (Npre 1)*ΔΡ X为当前轮随机接入尝试过程 中按照所述最大发送功率进行发送的次数。
确 定 单 元 31 , 具 体 用 于 根 据
P = min{PMAX, Pft始值 + (Npre_l)*[AP pup + (N_l)*(Npre_l)*P步长补偿] } , 确定发送随机接入 消息采用的发送功率。
其中, P tte为步长补偿功率, P为发送随机接入消息采用的发送功 率, Pmax为最大发送功率, 为初始发送功率, ΔΡ^ 为当前轮随机接 入尝试过程中发送相邻两次随机接入消息的发送功率增加值, Npre为当前 轮随机接入尝试过程中随机接入消息的发送次数, Npre为大于或者等于 1 并且小于或者等于 Npre max的整数, Npre max为当前轮随机接入尝试过程中的 最大尝试次数, N为随机接入消息的尝试轮数, N为大于或者等于 1的整 数。
可选地, P^tt 为预置的。
P tte是由获取单元 41从非易失性项中获取的。
可 替 换 地 , P tt 是 由 确 定 单 元 31 根 据 P步长补偿 = {? [Pft始值 + ( pre 1)*ΔΡ pup]}/(Npre 1) 确 定 的 , 其 中 , PMAX― P初始值 + (Npre max— 1) * Δ PRAMPUP
可 替 换 地 , P tt 是 由 确 定 单 元 31 根 据 P步长补偿 = {? [Pft始值 + ( pre - Χ)*ΔΡ pup]}/(Npre - X) 确 定 的 , 其 中 , PMAx≥Ptt始值 + (Npre 1)*ΔΡ X为当前轮随机接入尝试过程中按照所述最 大发送功率进行发送的次数。
可选的, 确定单元 31, 还用于确定 <
P*«HS 是 由 所 述 处 理 器 根 据
¾«Ht = {PMAX-[PW ^ + ( premax-l)*APrampup]}/(Npremax-l) 确 定 的 , 其 中 , PMAX - P初始值 + (Npre max— 1) * Δ PRAMPUP; ϋ ,
Ρ -^步长,补Μ偿, 是 由 所 述 处 <L 根 据
P步长补偿 = {ρ ΜΑχ— [Pft始值 + ( pre - Χ)*ΔΡ pup]}/(Npre - X) 确 定 的 其 中 , PMAX≥Ptt始值 + (Npre 1)*ΔΡ pup , X为当前轮随机接入尝试过程中按照所述最 大发送功率进行发送的次数。
可 选 的 , 确 定 单 元 31 , 具 体 用 于 根 据 P = min{PMAX, P¾]始值 + PL*(N- l)*XPL + (Npre- 1)*ΔΡ 确定发送随机接入消息采 用的发送功率。
其中, X 为路损补偿系数, P为发送随机接入消息采用的发送功率, PMAX为最大发送功率, P初始值为初始发送功率, A Prampup为当前轮随机接入尝 试过程中发送相邻两次随机接入消息的发送功率增加值, Npre为当前轮随 机接入尝试过程中随机接入消息的发送次数, Npre为大于或者等于 1并且小 于或者等于 Npre max的整数, Npre max为当前轮随机接入尝试过程中的最大尝 试次数, N为随机接入消息的尝试轮数, N为大于或者等于 1的整数。
可 选 的 , 确 定 单 元 31 , 具 体 用 于 根 据 P = min{PMAX, Ptt始值 + (Npre- 1) *[Δ Ρ pup + A P pup* (N- 1) *ΧΔΡ]} , 确定发送随机接入消 息采用的发送功率。
其中, ΧΔΡ为步长补偿系数, Ρ为发送随机接入消息采用的发送功率, ΡΜΑΧ为最大发送功率, Ρ初始值为初始发送功率, A Prampup为当前轮随机接入尝 试过程中发送相邻两次随机接入消息的发送功率增加值, Npre为当前轮随 机接入尝试过程中随机接入消息的发送次数, Npre为大于或者等于 1并且小 于或者等于 Npre max的整数, Npre max为当前轮随机接入尝试过程中的最大尝 试次数, N为随机接入消息的尝试轮数, N为大于或者等于 1的整数。
对于本发明实施例, 雜是由确定单元 31根据 雜 = PL+ Pojre + Apre确定 的, 其中, PL为下行路损, Ρ。,为随机接入消息携带的前导码的初始接收 目标功率, Δ 为前导码的格式偏移。
可选地, 所述用户设备还包括: 记录单元 42
记录单元 42 , 用于当随机接入消息的尝试轮数大于或者等于 2时, 记 录当前小区的小区标识。
确定单元 31 ,还用于当再次进入记录单元 42记录的小区标识所标识的 小区, 并向基站发送随机接入消息时, 按照尝试轮数为大于或者等于 2的 整数, 确定发送随机接入消息采用的发送功率。
可选地, 所述用户设备还包括: 删除单元 43
删除单元 43 , 用于当记录小区标识的时间大于或者等于预置时间时, 删除记录单元 42记录的小区标识。
删除单元 43 , 还用于当所述用户设备重新启动时, 删除记录单元 42 记录的小区标识。
本发明实施例提供的用户设备, 首先确定单元根据预置规则, 确定发 送随机接入消息采用的发送功率,然后收发单元采用确定单元确定的发送 功率, 向基站发送随机接入消息。 与目前直接通过下行路损确定发送功率 相比, 本发明实施例通过为发送功率增加补偿值, 能够当下行路损小于上 行路损时, 为发送功率增加适量补偿, 从而可以保证按照增加补偿值的发 送功率发送的随机接入消息能够发送至基站, 进而可以提高 UE与基站之 间建立连接的的成功率。
进一步地, 本发明实施例提供的用户设备, 通过 UE预先配置当前轮 随机接入尝试过程中按照最大发送功率进行发送的次数,能够根据用户需 求, 增大随机接入消息的补偿功率或随机接入消息的步长补偿功率, 减少 达到最大发送功率所需的发送次数, 从而可以缩短 UE与基站之间建立连 接的尝试时间; 通过上述各个公式确定得到的第一轮发送功率, 均与增加 补偿值前的发送功率相同,能够避免当通过增加补偿值前的发送功率足以 将随机接入消息发送给基站时, 仍然对发送功率进行补偿的情况, 从而可 以降低当前 UE的发送功率, 减少对其他 UE的干扰; 通过在预置时间后删 除记录的小区 ID , 能够避免当上行路损与下行路损发生改变, 而 UE始终 按照增加补偿值后的发送功率发送随机接入消,包、的情况,从而可以在保证 UE与基站之间成功建立连接的同时, 降低当前 UE的发送功率, 减少对其 他 UE的干 4尤; 通过当 UE再次进入小区 ID所标识的小区, 并向基站发送随 机接入消息时, UE直接按照尝试轮数 N为大于或者等于 2的整数, 确定增 加补偿值后的发送功率,并按照增加补偿值后的发送功率发送随机接入消 息, 能够避免第一轮按照补偿前的发送功率发送随机接入消息的步骤, 从 而可以缩短 UE与基站之间建立连接的尝试时间。
需要说明的是,本发明实施例中提供的随机接入过程中确定发送功率 的装置中各单元所对应的其他相应描述, 可以参考图 1及图 2中的对应描 述, 在此不再赘述。
再进一步地, 本发明实施例还提供了一种用户设备, 用于提高 UE与 基站之间建立连接的成功率, 如图 5 所示, 所述用户设备包括: 处理器 51、 收发器 52、 存储器 53, 所述存储器 53分别与收发器 52, 处理器 51 相连接。
处理器 51, 用于根据预置规则, 确定发送随机接入消息采用的发送功 率。
收发器 51, 用于采用处理器 51确定的发送功率, 向基站发送随机接入 消息。
处理器 51, 具体用于根据 P = min{P P¾]始值 + (NPRE - 1) * Δ P PUP + (N- 1) * P补偿 }, 确定发送随机接入消息采用的发送功率。
其中, P s为补偿功率, P为发送随机接入消息采用的发送功率, PMAX 为最大发送功率, P初始值为初始发送功率, ΔΡ^ 为当前轮随机接入尝试过 程中发送相邻两次随机接入消息的发送功率增加值, NPRE为当前轮随机接 入尝试过程中随机接入消息的发送次数, 16为大于或者等于 1并且小于或 者等于 NPRE 的整数, NPRE max为当前轮随机接入尝试过程中的最大尝试次 数, N为随机接入消息的尝试轮数, N为大于或者等于 1的整数。
可选地, 为预置的。
是由处理器 51从非易失性项中获取的。
可替换地, P补偿是由处理器 51根据 P补偿 = P - [P 值 + (NPRE 1) * Δ P pup ]确
Figure imgf000028_0001
可替换地 , P补偿是由处理器 51根据 P补偿 = P - 始值 + (NPRE - X) * Δ P pup ]确 定的, 其中, PMAX≥Ptt始值 + (NPRE - l)*APrampup X为当前轮随机接入尝试过程中 按照所述最大发送功率进行发送的次数。
处 理 器 51 , 具 体 用 于 根 据
P = min{PMAX, Pft始值 + (Npre_l)*[AP PUP + (N_l)*(Npre_l)*P步长补偿] } , 确定发送随机接入 消息采用的发送功率。
其中, P tte为步长补偿功率, P为发送随机接入消息采用的发送功 率, Pmax为最大发送功率, 为初始发送功率, ΔΡ^ 为当前轮随机接 入尝试过程中发送相邻两次随机接入消息的发送功率增加值, Npre为当前 轮随机接入尝试过程中随机接入消息的发送次数, Npre为大于或者等于 1 并且小于或者等于 Npre max的整数, Npre max为当前轮随机接入尝试过程中的 最大尝试次数, N为随机接入消息的尝试轮数, N为大于或者等于 1的整 数。
可选地, P^tt 为预置的。
?m是由处理器 51从非易失性项中获取的。
可 替 换 地 , P tt 是 由 处 理 器 51 根 据 P步长补偿 = {? [Pft始值 + ( pre 1)*ΔΡ pup]}/(Npre 1) 确 定 的 , 其 中 , PMAX― P初始值 + (Npre max— 1) * Δ PRAMPUP
可 替 换 地 , P tt 是 由 处 理 器 51 根 据 P步长补偿 = {? [Pft始值 + ( pre - Χ)*ΔΡ pup]}/(Npre - X) 确 定 的 , 其 中 , PMAx≥Ptt始值 + (Npre 1)*ΔΡ X为当前轮随机接入尝试过程中按照所述最 大发送功率进行发送的次数。
处 理 器 51 , 具 体 用 于 根 据
P = min{PMAX, P¾]始值 + PL*(N- l)*XPL + (Npre- 1)*ΔΡ 确定发送随机接入消息采 用的发送功率。
其中, X 为路损补偿系数, P为发送随机接入消息采用的发送功率, PMAX为最大发送功率, P初始值为初始发送功率, APrampup为当前轮随机接入尝 试过程中发送相邻两次随机接入消息的发送功率增加值, Npre为当前轮随 机接入尝试过程中随机接入消息的发送次数, Npre为大于或者等于 1并且小 于或者等于 Npre max的整数, Npre max为当前轮随机接入尝试过程中的最大尝 试次数, N为随机接入消息的尝试轮数, N为大于或者等于 1的整数。
处 理 器 51 , 具 体 用 于 根 据 P = min{PMAX, Ptt始值 + (Npre- 1) *[Δ Ρ pup + A P pup* (N- 1) *ΧΔΡ]} , 确定发送随机接入消 息采用的发送功率。
其中, ΧΔΡ为步长补偿系数, Ρ为发送随机接入消息采用的发送功率, ΡΜΑΧ为最大发送功率, Ρ初始值为初始发送功率, A Prampup为当前轮随机接入尝 试过程中发送相邻两次随机接入消息的发送功率增加值, Npre为当前轮随 机接入尝试过程中随机接入消息的发送次数, Npre为大于或者等于 1并且小 于或者等于 Npre max的整数, Npre max为当前轮随机接入尝试过程中的最大尝 试次数, N为随机接入消息的尝试轮数, N为大于或者等于 1的整数。
对于本发明实施例, P誦是由处理器 51根据 雜 = PL+ Pojre + ΔρΓβ确定的, 其中, PL为下行路损, Ρ。,为随机接入消息携带的前导码的初始接收目标 功率, Δ 为前导码的格式偏移。
处理器 51 , 还用于当随机接入消息的尝试轮数大于或者等于 2时, 记 录当前小区的小区标识。
处理器 51 , 还用于当再次进入小区标识所标识的小区, 并向基站发送 随机接入消息时, 按照尝试轮数为大于或者等于 2的整数, 确定发送随机 接入消息采用的发送功率。
处理器 51 , 还用于当记录小区标识的时间大于或者等于预置时间时, 删除记录的小区标识。
处理器 51 ,还用于当所述用户设备重新启动时,删除记录的小区标识。 本发明实施例提供的用户设备, 首先处理器根据预置规则, 确定发送 随机接入消息采用的发送功率, 然后收发器采用处理器确定的发送功率, 向基站发送随机接入消息。 与目前直接通过下行路损确定发送功率相比, 本发明实施例通过为发送功率增加补偿值,能够当下行路损小于上行路损 时, 为发送功率增加适量补偿, 从而可以保证按照增加补偿值的发送功率 发送的随机接入消息能够发送至基站, 进而可以提高 UE与基站之间建立 连接的的成功率。
进一步地, 本发明实施例提供的用户设备, 通过 UE预先配置当前轮 随机接入尝试过程中按照最大发送功率进行发送的次数,能够根据用户需 求, 增大随机接入消息的补偿功率或随机接入消息的步长补偿功率, 减少 达到最大发送功率所需的发送次数, 从而可以缩短 UE与基站之间建立连 接的尝试时间; 通过上述各个公式确定得到的第一轮发送功率, 均与增加 补偿值前的发送功率相同,能够避免当通过增加补偿值前的发送功率足以 将随机接入消息发送给基站时, 仍然对发送功率进行补偿的情况, 从而可 以降低当前 UE的发送功率, 减少对其他 UE的干扰; 通过在预置时间后删 除记录的小区 ID , 能够避免当上行路损与下行路损发生改变, 而 UE始终 按照增加补偿值后的发送功率发送随机接入消,包、的情况,从而可以在保证 UE与基站之间成功建立连接的同时, 降低当前 UE的发送功率, 减少对其 他 UE的干 4尤; 通过当 UE再次进入小区 ID所标识的小区, 并向基站发送随 机接入消息时, UE直接按照尝试轮数 N为大于或者等于 2的整数, 确定增 加补偿值后的发送功率,并按照增加补偿值后的发送功率发送随机接入消 息, 能够避免第一轮按照补偿前的发送功率发送随机接入消息的步骤, 从 而可以缩短 UE与基站之间建立连接的尝试时间。
需要说明的是,本发明实施例中提供的用户设备中各设备所对应的其 他相应描述, 可以参考图 1或图 2中的对应描述, 在此不再赘述。
本发明实施例提供的确定发送功率的方法及用户设备可以适用于用 户设备与基站之间建立连接, 但不仅限于此。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分 流程, 是可以通过计算机程序来指令相关的硬件来完成, 所述的程序可存 储于一计算机可读取存储介质中, 该程序在执行时, 可包括如上述各方法 的实施例的流程。 其中, 所述的存储介质可为磁碟、 光盘、 只读存储记忆 体 ( Read-Only Memory , ROM ) 或随机存 者 i己忆体 ( Random Access Memory, RAM ) 等。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局 限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可 轻易想到的变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发 明的保护范围应该以权利要求的保护范围为准。

Claims

权 利 要 求 书
1、 一种确定发送功率的方法, 其特征在于, 包括:
根据预置规则, 确定发送随机接入消息采用的发送功率;
采用确定的所述发送功率, 向基站发送所述随机接入消息。
2、 根据权利要求 1所述的方法, 其特征在于, 所述根据预置规则, 确 定发送随机接入消息采用的发送功率, 包括:
根据 P = min{PMAX, P¾]始值 + (Npre- 1)*ΔΡ pup + (N- 1)*P补偿 } 确定发送所述随机接 入消息采用的发送功率, 其中, 为补偿功率, P为发送所述随机接入消 息采用的发送功率, PMAX为最大发送功率, P初始值为初始发迭功率, ΔΡ 为 当前轮随机接入尝试过程中发送相邻两次所述随机接入消息的发送功率增 加值, NDre为当前轮随机接入尝试过程中所述随机接入消息的发送次数, NDre 为大于或者等于 1并且小于或者等于 Npre ma 々整数, 当前轮随机接 入尝试过程中的最大尝试次数, N为所述随机接入消息的尝试轮数, N为 大于或者等于 1的整数。
3、 根据权利要求 2所述的方法, 其特征在于, 为预置的;
所述根据 P = min{PMAX, P¾]始值 + (Npre- 1)*ΔΡ pup + (N- 1)*P补偿 } 确定发送所述随 机接入消息采用的发送功率之前, 所述方法还包括:
从非易失性项中, 获取 <
4、 根据权利要求 2所述的方法, 其特征在于, 所述根据 P = min{PMAX, P¾]始值 + (Npre— 1)*ΔΡ pup+(N- 1)*P补偿 } 确定发送所述随机接入消息采 用的发送功率之前, 所述方法还包括: 确定 S
所述确定 , 包括:
根 据 P补偿 =Ρ 始值 + (Npre 1)*ΔΡ pup] , 确 定 Ρ补偿 , 其 中 , - Ρ初始值 + (Npre 1) *△ PrampUp ϋ ,
根 据 Ρ补偿 =ΡΜΑΧ- 始值 + (Npre - Χ)*ΔΡ pup] , 确 定 Ρ补偿 , 其 中 , PMAX≥Ptt始值 + (Npre - l)*APrampup X为当前轮随机接入尝试过程中按照所述最大 发送功率进行发送的次数。
5、 根据权利要求 1所述的方法, 其特征在于, 所述根据预置规则, 确 定发送随机接入消息采用的发送功率, 包括:
根据 P = min{PMAX, Pft始值 + (Npre- 1)*[ΔΡ pup + (N- l)*(Npre- 1)*P步长补偿] } , 确定发送 所述随机接入消息采用的发送功率, 其中, Mg为步长补偿功率, P为发 送所述随机接入消息采用的发送功率, PMAX为最大发送功率, 为初始 发送功率, Δ Prampup为当前轮随机接入尝试过程中发送相邻两次所述随机接入 消息的发送功率增加值, Npre为当前轮随机接入尝试过程中所述随机接入消 息的发送次数, N 为大于或者等于 1并且小于或者等于 Npre ma3 々整数, Npre max为当前轮随机接入尝试过程中的最大尝试次数, N为所述随机接入消 息的尝试轮数, N为大于或者等于 1的整数。
6、 根据权利要求 5所述的方法, 其特征在于, P tt 为预置的; 所述根据 P = min{PMAX, Pft始值 + (Npre- l)*[APrampup + (N- l)*(Npre- 1)*P步长补偿] } , 确定 发送所述随机接入消息采用的发送功率之前, 所述方法还包括:
从非易失性项中, 获取 ^。
7、 根据权利要求 5所述的方法, 其特征在于, 所述根据 P = min{PMAX, Pft始值 + (Npre_l)*[AP pup + (N_l)*(Npre_l)*P步长补偿] } , 确定发送所述随机 接入消息采用的发送功率之前, 所述方法还包括:
^ ^~ p步长补偿 ,
所述确定 ^, 包括:
根据 P步长补偿 = {P — [Ρω台值 + ( pre 1)*ΔΡ pup]}/(Npr x- 1) ,确定 P步长补偿 '其中, PMAX - P初始值 + (Npre max— 1) * Δ PRAMPUP ϋ ,
根据 Ρ步长补偿 = {Ρ 始值 + (Npre - Χ)*ΔΡ pup]}/(Npre - X) , 确定 Ρ步长补偿 其 中, PMAx≥Ptt始值 + (Npre - l)*APrampup, X为当前轮随机接入尝试过程中按照所述 最大发送功率进行发送的次数。
8、 根据权利要求 1所述的方法, 其特征在于, 所述根据预置规则, 确 定发送随机接入消息采用的发送功率, 包括: 根据 P = min{PMAX, P¾]始值 + PL*(N- l)*XPL + (Npre- 1)*ΔΡ pup} , 确定发送所述随 机接入消息采用的发送功率, 其中, X 为路损补偿系数, P为发送所述随 机接入消息采用的发送功率, 为最大发送功率, P初始值为初始发迭功率, ΔΡ_为当前轮随机接入尝试过程中发送相邻两次所述随机接入消息的发 送功率增加值, Npre为当前轮随机接入尝试过程中所述随机接入消息的发送 次数, ^16为大于或者等于 1并且小于或者等于 Npre maJ々整数, Npre max为当前 轮随机接入尝试过程中的最大尝试次数, N为所述随机接入消息的尝试轮 数, N为大于或者等于 1的整数。
9、 根据权利要求 1所述的方法, 其特征在于, 所述根据预置规则, 确 定发送随机接入消息采用的发送功率, 包括:
根据 P = min{PMAX, Ptt始值 + (Npre- 1)*[ΔΡ pup + AP pup*(N- 1)*ΧΔΡ]}, 确定发送所 述随机接入消息采用的发送功率, 其中, ΧΔΡ为步长补偿系数, Ρ为发送所 述随机接入消息采用的发送功率, ΡΜΑΧ为最大发送功率, 雜为初始发送 功率, ΔΡ^ 为当前轮随机接入尝试过程中发送相邻两次所述随机接入消息 的发送功率增加值, Npre为当前轮随机接入尝试过程中所述随机接入消息的 发送次数, 16为大于或者等于 1并且小于或者等于 Npre皿的整数,
当前轮随机接入尝试过程中的最大尝试次数, N为所述随机接入消息的尝 试轮数, N为大于或者等于 1的整数。
10、 根据权利要求 2至 9任一所述的方法, 其特征在于, 是根据 =?1^+ ,+八 确定的, 其中, PL为下行路损, Ρ。^ε为所述随机接入消息 携带的前导码的初始接收目标功率, Δρκ为所述前导码的格式偏移。
11、 根据权利要求 1至 10任一所述的方法, 其特征在于, 所述采用确定 的所述发送功率, 向基站发送所述随机接入消息之后, 所述方法还包括: 若所述随机接入消息的尝试轮数大于或者等于 2,则记录当前小区的小 区标识;
当再次进入所述小区标识所标识的小区, 并向所述基站发送所述随机 接入消息时, 按照尝试轮数为大于或者等于 2的整数, 确定发送所述随机接 入消息采用的发送功率。
12、 根据权利要求 11所述的方法, 其特征在于, 所述记录当前小区的 小区标识之后, 还包括:
当记录所述小区标识的时间大于或者等于预置时间时, 删除记录的所 述小区标识; 或者
当重新启动用户设备时, 删除记录的所述小区标识。
13 种用户设备, 其特征在于, 包括:
处理器, 用于根据预置规则, 确定发送随机接入消息采用的发送功率; 收发器, 用于采用所述处理器确定的所述发送功率, 向基站发送所述 随机接入消息。
14、 根据权利要求 13所述的用户设备, 其特征在于,
所 述 处 理 器 , 具 体 用 于 根 据
P = min{PMAX, Pft始值 + (Npre— 1) *Δ Ρ pup + (N- 1) *P补偿 } 确定发送所述随机接入消息采 用的发送功率, 其中, 为补偿功率, P为发送所述随机接入消息采用的 发送功率, PMAX为最大发送功率, 雜为初始发送功率, APrampup为当前轮随 机接入尝试过程中发送相邻两次所述随机接入消息的发送功率增加值, Npre 为当前轮随机接入尝试过程中所述随机接入消息的发送次数, Npre为大于或 者等于 1并且小于或者等于 Npre max的整数, Npre max为当前轮随机接入尝试过 程中的最大尝试次数, N为所述随机接入消息的尝试轮数, N为大于或者 等于 1的整数。
15、 根据权利要求 14所述的用户设备, 其特征在于, 为预置的; e是由所述处理器从非易失性项中获取的。
16、 根据权利要求 14所述的用户设备, 其特征在于,
P补偿是由所述处理器根据 P补偿 = PMAX- [Ptt始值 + (Npre 1) *ΔΡ pup]确定的,其中,
^MAX - P初始值 + (Npre max— 1) *△ Prampup; ϋ ,
Ρ补偿是由所述处理器根据 Ρ补偿 = ΡΜΑΧ- 始值 + (ΝΡ Χ- Χ) * ΔΡ pup]确定的, 其 中, PMAX≥Ptt始值 + ( pre max- l) *A Prampup X为当前轮随机接入尝试过程中按照所述 最大发送功率进行发送的次数。
17、 根据权利要求 13所述的用户设备, 其特征在于,
所 述 处 理 器 , 具 体 用 于
Figure imgf000037_0001
P = min{PMAX, P 始倌 + (Npre- 1)*[ΔΡ + (N- l)*(Npre- 1)*P步长补偿] } , 确定发送所述随机 接入消息采用的发送功率, 其中, P tt 为步长补偿功率, P为发送所述随 机接入消息采用的发送功率, 为最大发送功率, P初始值为初始发逸功率,
ΔΡ_为当前轮随机接入尝试过程中发送相邻两次所述随机接入消息的发 送功率增加值, Npre为当前轮随机接入尝试过程中所述随机接入消息的发送 次数, ^16为大于或者等于 1并且小于或者等于 Npre maJ々整数, Npre max为当前 轮随机接入尝试过程中的最大尝试次数, N为所述随机接入消息的尝试轮 数, N为大于或者等于 1的整数。
18、 根据权利要求 17所述的用户设备, 其特征在于, P^ s为预置的; P tte是由所述处理器从非易失性项中获取的。
19、 根据权利要求 17所述的用户设备, 其特征在于, 步长补偿
Figure imgf000037_0002
由 处 理 根 步长补偿 {PMAX― [P初始倌 + ^ 1)*ΔΡ pup]}/(Np -1) 确 定 的 其 中
PMAX - P初始值 +(N pre max — 1),*ΔΡ rampup 或者,
步^补偿
Figure imgf000037_0003
由 处 理 3 根 步长补偿 {ΡΜΑχ— [P初始值 + (Npre Χ)*ΔΡ ] }/(N. pre max -X) 确 定 的 其 中
PMA P初始值 + (N pre max _1),*ΔΡ rampup , X为当前轮随机接入尝试过程中按照所述最大 发送功率进行发送的次数。
20、 根据权利要求 13所述的用户设备, 其特征在于,
所 述 处 理 器 , 具 体 用
P = min{PMAX, P 始倌 + PL*(N- l)*XPL + (Npre- 1)*ΔΡ }, 确定发送所述随机接入消 息采用的发送功率, 其中, Χ 为路损补偿系数, Ρ为发送所述随机接入消 息采用的发送功率, ΡΜΑΧ为最大发送功率, Ρ初始值为初始发迭功率, 八?皿 为 当前轮随机接入尝试过程中发送相邻两次所述随机接入消息的发送功率增 加值, NDre为当前轮随机接入尝试过程中所述随机接入消息的发送次数, NDre 为大于或者等于 1并且小于或者等于 Npre ma 々整数, 当前轮随机接 入尝试过程中的最大尝试次数, N为所述随机接入消息的尝试轮数, N为 大于或者等于 1的整数。
21、 根据权利要求 13所述的用户设备, 其特征在于,
所 述 处 理 器 , 具 体 用 于 根 据
P = min{PMAX, Ptt始值 + (Npre_ l) *[A P pup + A P pup* (N- 1) *ΧΔΡ]}, 确定发送所述随机接 入消息采用的发送功率, 其中, ΧΔΡ为步长补偿系数, Ρ为发送所述随机接 入消息采用的发送功率, ΡΜΑΧ为最大发送功率, Ρ初始值为初始复迭功率, A Prampup 为当前轮随机接入尝试过程中发送相邻两次所述随机接入消息的发送功率 增加值, Npre为当前轮随机接入尝试过程中所述随机接入消息的发送次数, 6为大于或者等于 1并且小于或者等于 Npre皿的整数, Npre max为当前轮随机 接入尝试过程中的最大尝试次数, N为所述随机接入消息的尝试轮数, N为 大于或者等于 1的整数。
22、 根据权利要求 13至 21任一所述的用户设备, 其特征在于, 是 由所述处理器根据 雜 = ?1^ ?。^+八^确定的, 其中, PL为下行路损, ,为 所述随机接入消息携带的前导码的初始接收目标功率, Δρκ为所述前导码的 格式偏移。
23、 根据权利要求 13至 22任一所述的用户设备, 其特征在于, 所述处理器, 还用于当所述随机接入消息的尝试轮数大于或者等于 2 时, 记录当前小区的小区标识;
所述处理器, 还用于当再次进入所述小区标识所标识的小区, 并向所 述基站发送所述随机接入消息时, 按照尝试轮数为大于或者等于 2的整数, 确定发送所述随机接入消息采用的发送功率。
24、 根据权利要求 23所述的用户设备, 其特征在于,
所述处理器, 还用于当记录所述小区标识的时间大于或者等于预置时 间时, 删除记录的所述小区标识; 所述处理器, 还用于当所述用户设备重新启动时, 删除记录的所述小 区标识。
PCT/CN2014/079881 2014-06-13 2014-06-13 一种确定发送功率的方法及用户设备 WO2015188387A1 (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN202010381345.1A CN111726875B (zh) 2014-06-13 2014-06-13 一种确定发送功率的方法及用户设备
CN201480056071.1A CN105637941B (zh) 2014-06-13 2014-06-13 一种确定发送功率的方法及用户设备
PCT/CN2014/079881 WO2015188387A1 (zh) 2014-06-13 2014-06-13 一种确定发送功率的方法及用户设备
EP14894590.0A EP3148259B1 (en) 2014-06-13 2014-06-13 Method and user equipment for determining transmission power
US15/377,342 US9832742B2 (en) 2014-06-13 2016-12-13 Method for determining transmit power and user equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/079881 WO2015188387A1 (zh) 2014-06-13 2014-06-13 一种确定发送功率的方法及用户设备

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/377,342 Continuation US9832742B2 (en) 2014-06-13 2016-12-13 Method for determining transmit power and user equipment

Publications (1)

Publication Number Publication Date
WO2015188387A1 true WO2015188387A1 (zh) 2015-12-17

Family

ID=54832760

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/079881 WO2015188387A1 (zh) 2014-06-13 2014-06-13 一种确定发送功率的方法及用户设备

Country Status (4)

Country Link
US (1) US9832742B2 (zh)
EP (1) EP3148259B1 (zh)
CN (2) CN111726875B (zh)
WO (1) WO2015188387A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101094015A (zh) * 2006-06-23 2007-12-26 普天信息技术研究院 移动通信系统中开环初始发射功率的控制方法
WO2011087274A2 (en) * 2010-01-12 2011-07-21 Samsung Electronics Co., Ltd. Apparatus and method for accessing random access channel in a wireless communication system
CN102651907A (zh) * 2012-05-03 2012-08-29 华为技术有限公司 一种上行传输处理方法、基站和用户设备

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070064665A1 (en) * 2005-08-23 2007-03-22 Interdigital Technology Corporation Method and apparatus for accessing an uplink random access channel in a single carrier frequency division multiple access system
SG166122A1 (en) * 2006-10-03 2010-11-29 Qualcomm Inc Random access signaling transmission for system access in wireless communication
KR101397135B1 (ko) * 2007-03-07 2014-05-22 인터디지탈 테크날러지 코포레이션 이동국의 업링크 전력을 제어하기 위한 결합형 개방 루프/폐쇄 루프 방법
JP4937155B2 (ja) * 2008-02-08 2012-05-23 株式会社エヌ・ティ・ティ・ドコモ 移動通信方法、移動通信システム及び無線基地局
EP2269398B1 (en) * 2008-04-28 2018-07-25 LG Electronics Inc. Random access channel preamble selection
RU2469507C2 (ru) * 2008-05-05 2012-12-10 Нокиа Сименс Нетуоркс Ой Способ, устройство и машинная программа для управления мощностью в связи с процедурами произвольного доступа
US8494572B2 (en) * 2008-06-24 2013-07-23 Qualcomm Incorporated Method and apparatus for power control of first data transmission in random access procedure of FDMA communication system
KR101636258B1 (ko) * 2009-03-20 2016-07-05 삼성전자 주식회사 이동통신시스템에서 네트워크의 rach 관련 시스템 자원자동적 최적화 방법
WO2010115299A1 (zh) * 2009-04-07 2010-10-14 深圳华为通信技术有限公司 随机接入方法及其装置
EP2486761B1 (en) * 2009-10-05 2018-07-18 Optis Cellular Technology, LLC Method and system for uplink power control in a mobile telecommunication network
CN102724746A (zh) * 2011-03-29 2012-10-10 中兴通讯股份有限公司 随机接入过程中前导码发送功率的控制、确定方法及系统
CN103125136B (zh) * 2011-09-23 2016-11-09 华为技术有限公司 功率确定方法和用户设备
US9635652B2 (en) * 2012-03-22 2017-04-25 Zte (Usa) Inc. Optimized transmission of machine type communication data from a mobile device to a wireless network

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101094015A (zh) * 2006-06-23 2007-12-26 普天信息技术研究院 移动通信系统中开环初始发射功率的控制方法
WO2011087274A2 (en) * 2010-01-12 2011-07-21 Samsung Electronics Co., Ltd. Apparatus and method for accessing random access channel in a wireless communication system
CN102651907A (zh) * 2012-05-03 2012-08-29 华为技术有限公司 一种上行传输处理方法、基站和用户设备

Also Published As

Publication number Publication date
CN105637941A (zh) 2016-06-01
EP3148259A4 (en) 2017-05-24
CN111726875A (zh) 2020-09-29
EP3148259A1 (en) 2017-03-29
EP3148259B1 (en) 2020-05-13
US9832742B2 (en) 2017-11-28
US20170094613A1 (en) 2017-03-30
CN105637941B (zh) 2020-05-08
CN111726875B (zh) 2023-07-21

Similar Documents

Publication Publication Date Title
US11064356B2 (en) Security framework for MSG3 and MSG4 in early data transmission
US10849181B2 (en) NR RRC connection setup optimisation
KR101762086B1 (ko) 혼잡 상태의 무선 통신 네트워크에서 대기 시간 처리
US10225780B2 (en) Device and method of handling radio resource control connection resume procedure
CN112335330A (zh) 在释放和重新暂停时非活动参数的处置
EP3780759A1 (en) Method executed by user equipment, method executed by base station, user equipment and base station
RU2619528C2 (ru) Повторное подключение к сети после приема пользовательским оборудованием отклонения запроса на обслуживание в ответ на запрос на обслуживание
WO2020063666A1 (zh) 用户设备及其执行的方法、基站及其执行的方法、移动控制实体及其执行的方法
JP2019501595A (ja) 狭帯域のインターネット・オブ・シングスのためのユーザープレーンの最適化
CN108370601A (zh) 数据传输处理方法、用户设备和基站
JP6487550B2 (ja) 鍵拡張乗数を用いたユーザ機器および基地局による複数の共有鍵の生成
TW202015387A (zh) 在新無線電(nr)中之可擴展之認證協定(eap)實施
EP3881643A1 (en) Uplink communication in an inactive state in a celluar network
KR20180125439A (ko) 장치 대 장치 통신 방법, 단말 장치 및 네트워크 장치
EP3163969B1 (en) Methods for terminating a call and related devices
JP2021509548A (ja) ハンドオーバ方法、装置、並びにコンピュータ記憶媒体
CN111542053B (zh) 重建rrc连接的方法和终端
US11013059B2 (en) Handling RRC connection release
US11343738B2 (en) Handover-based connection resume technique
CN109196897B (zh) 用于5g mc的优化的安全密钥刷新过程
WO2015188387A1 (zh) 一种确定发送功率的方法及用户设备
JP2022531831A (ja) チャネルの伝送方法、電子機器および記憶媒体
US20230079410A1 (en) Method and Apparatus for Obtaining Key, User Equipment, and Network Side Device
JP6270332B2 (ja) 移動通信方法及び移動通信端末
CN112166644B (zh) 一种信息获取方法及设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14894590

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

REEP Request for entry into the european phase

Ref document number: 2014894590

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2014894590

Country of ref document: EP