CN102918895B - Power control method in non-adaptive retransmission and user equipment - Google Patents
Power control method in non-adaptive retransmission and user equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/48—TPC being performed in particular situations during retransmission after error or non-acknowledgment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/362—Aspects of the step size
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
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Abstract
A power control method in non-adaptive retransmission and a user equipment are disclosed in the present invention. The method includes: acquiring rising step size of transmission power of Physical Uplink Shared Channel (PUSCH) data; according to the rising step size of the transmission power of the PUSCH data, acquiring the transmission power of retransmission PUSCH data; selecting the minimum value between the transmission power of the retransmission PUSCH data and the maximum transmission power of the user equipment as the transmission power of the current retransmission PUSCH data; and adopting the transmission power of the current retransmission PUSCH data to retransmit the PUSCH data. The embodiments of the present invention can improve system performance.
Description
Technical Field
The present invention relates to mobile communication technologies, and in particular, to a power control method and a user equipment in non-adaptive retransmission.
Background
Long Term Evolution (LTE) is used as the Evolution of the third generation (3G) technology, improves and enhances the 3G air access technology, and for User Equipment (UE), the access success rate is very important, and a higher access success rate is beneficial to improving the reliability of the system. In the whole access process, power control in the random access process is crucial, and only enough transmission power can ensure that signals transmitted by the UE can be received and correctly demodulated by a network side, such as an evolved node b (eNodeB). If the transmission power of the UE is too high, the access of other UEs is influenced, and if the transmission power of the UE is too low, the successful access cannot be guaranteed.
In the random access process, a series of signaling interaction is carried out between the UE and the network side to complete handshake, and a third message (msg3) is the second signaling in the series of interactive signaling, so whether msg3 can be successfully received by the network side and correctly demodulated is a crucial step for success of random access, and the transmission power of msg3 is a key for ensuring success. Here, msg3 is one of Channel data transmitted in a Physical Uplink Shared Channel (PUSCH).
When the initial transmission of the msg3 or other PUSCH data fails, the UE retransmits the msg3 or other PUSCH data, and the retransmission times are configured by the network side through system messages. The retransmission is divided into adaptive retransmission and non-adaptive retransmission, the network side indicates the UE to perform power adjustment during the adaptive retransmission, and the UE is calculated according to the previous transmitting power during the non-adaptive retransmission, and the calculated transmitting power is usually the smaller value of the previous transmitting power and the maximum transmitting power.
When the self-adaptive retransmission is carried out, the transmitting power calculated by the UE according to the transmitting power of the previous time is smaller than or equal to the transmitting power of the previous time, and the demodulation threshold of the eNodeB can still not be met, so that the transmission fails again, and finally, the random access fails after the maximum retransmission times are reached, so that the reliability of the system is reduced.
Disclosure of Invention
The embodiment of the invention provides a power control method and user equipment in non-adaptive retransmission, which can improve the transmitting power of uplink data and improve the reliability of a system.
One aspect of the present invention provides a power control method in non-adaptive retransmission, including: acquiring the rising step length of the uplink shared data channel PUSCH data transmitting power; acquiring the transmitting power of retransmission PUSCH data according to the rising step length of the transmitting power of the PUSCH data; taking the minimum value between the transmission power of the retransmission PUSCH data and the maximum transmission power of the user equipment as the transmission power of the retransmission PUSCH data; and retransmitting the PUSCH data by adopting the transmitting power of the PUSCH data retransmitted this time.
Another aspect of the present invention provides a user equipment, including: the device comprises an acquisition unit, a transmission unit and a control unit, wherein the acquisition unit is used for acquiring the rising step length of the data transmission power of an uplink shared data channel PUSCH; a first determining unit, configured to obtain the transmit power of the retransmitted PUSCH data according to the ascending step size of the PUSCH data transmit power; a second determining unit, configured to take a minimum value between the transmission power of the retransmission PUSCH data and the maximum transmission power of the user equipment as the transmission power of the retransmission PUSCH data; and a transmission unit, configured to retransmit the PUSCH data by using the transmission power of the retransmission PUSCH data this time.
According to the technical scheme, the ascending step length of the transmitting power is obtained, so that the transmitting power during retransmission is higher than the transmitting power of the previous time by the ascending step length, the transmitting power can be increased along with the increase of retransmission times, the access success rate of the UE is improved, and the system performance is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic diagram of a power control method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a power control method according to another embodiment of the present invention;
fig. 3 is a schematic diagram of a power control method according to another embodiment of the present invention;
fig. 4 is a schematic diagram of a user equipment according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic diagram of a power control method according to an embodiment of the present invention, which includes the following steps.
And 11, acquiring the rising step size of the PUSCH data transmission power.
Optionally, the obtaining the ramping step of the PUSCH data transmission power includes: receiving configuration information sent by a network side, wherein the configuration information comprises the rising step length of the PUSCH data transmission power; or obtaining a default value of the step size for the rising of the PUSCH data transmission power, and using the default value of the step size for the rising of the transmission power as the step size for the rising of the PUSCH data transmission power.
And 12, acquiring the transmission power of the retransmission PUSCH data according to the ascending step length of the PUSCH data transmission power.
Optionally, the obtaining the transmission power of the retransmission PUSCH data according to the ascending step size of the PUSCH data transmission power includes:
and acquiring the transmission power value and the retransmission times of the PUSCH data initially transmitted, and acquiring the transmission power of the retransmitted PUSCH data according to the transmission power value, the retransmission times and the ascending step length of the PUSCH data transmission power initially transmitted. Specifically, the product of the rising step of the PUSCH data transmission power and the retransmission frequency is calculated, and the sum of the product and the transmission power value of the initially transmitted PUSCH data may be used as the transmission power of the retransmitted PUSCH data.
Or, acquiring the transmission power of the retransmission PUSCH data according to the transmission power of the PUSCH data sent last time and the rising step length of the PUSCH data transmission power. Specifically, the sum of the transmission power of the PUSCH data transmitted in the previous time and the rising step size of the transmission power of the PUSCH data may be used as the transmission power of the retransmission PUSCH data.
And 13, taking the minimum value between the transmission power of the retransmission PUSCH data and the maximum transmission power of the UE as the transmission power of the retransmission PUSCH data.
And 14, retransmitting the PUSCH data by adopting the transmission power of the PUSCH data retransmitted this time.
The PUSCH data in the above embodiment may specifically be msg3 or other PUSCH data.
In this embodiment, the transmission power during the retransmission is higher than the previous transmission power by the step size of the transmission power, so that the transmission power can be increased with the increase of the retransmission times, the access success rate of the UE is improved, and the system performance is improved.
Fig. 2 is a schematic diagram of a power control method according to another embodiment of the present invention, which details a power control method for retransmitting PUSCH data in non-adaptive retransmission, and referring to fig. 2, the present embodiment includes the following contents.
And 21, determining the transmission power value of the initial PUSCH data.
The PUSCH data may include msg3, msg5, PUSCH data transmission data, or the like.
For example, the transmit power P of the PUSCH data for initial transmission can be calculated by the following equation 2.1initPUSCH(i) (unit dBm):
PinitPUSCH(i)＝min{PMAX·1·0log10(MPUSCH(i))+PO_PUSCH(j)+α(j)·Ppl+ΔTF(i) + f (i) } -equation 2.1
Wherein: pMAXThe unit is dBm for the maximum UE transmitting power; mPUSCH(i) The unit is RB for the transmission bandwidth of the ith uplink subframe of the PUSCH; pO_PUSCH(j) Open loop control parameters (resolution 1dB) in dB; alpha (j) is a path loss compensation factor and is dimensionless; pplThe unit of the downlink path loss estimated by the UE side is dB; deltaTF(i) Is a cell level parameter in dB; and f (i) the step size of the power control adjustment is in dB.
22, obtaining the rising step delta of the PUSCH data transmitting powerStep。
Optionally, a parameter δ is obtainedStep can include the following two approaches:(1) the network side (such as eNodeB) is configured, for example, by eNodeB, and in a system message sent by eNodeB to UE, the configuration of the ramp step parameter for the PUSCH data transmission power of the non-adaptive retransmission is added, for example, eNodeB sends to UE through system message SIB 2. (2) Default configuration: setting a deltaStepA default value; no delta configuration on the network sideStepIn the case of (2), the delta is usedStepThe default configuration values are calculated.
And 23, determining the transmission power of the PUSCH data retransmitted this time.
For example, the transmission power P of the PUSCH data for the retransmission can be determined by the following formula 2.2RePUSCH(unit dBm):
PRePUSCH(i)＝min{PMAX··PInitPUSCH+δStep*N(i)formula 2.2
Wherein, PMAXIs the maximum UE transmit power; pInitPUSCHTransmitting power of the PUSCH data for initial transmission; deltaStepThe step length of the PUSCH data transmitting power is the rising step length in the non-adaptive retransmission; n is a radical of(i)The number of retransmission times of PUSCH data in non-adaptive retransmission is disclosed.
Namely, the rising step delta of the transmission power of the PUSCH data can be calculated firstlyStepAnd the number of retransmissions N(i)And the product is multiplied by the transmission power value P of the initially transmitted PUSCH dataInitPUSCHIs (P)InitPUSCH+δStep*N(i)) As the transmission power of the retransmission PUSCH data, the transmission power (P) of the retransmission PUSCH data is selectedInitPUSCH+δStep*N(i)) And PMAXThe minimum value between the two is taken as the transmission power P of the PUSCH data of the retransmissionRePUSCH。
As another alternative embodiment, the UE may also determine the transmission power of the current retransmission of the PUSCH data according to the transmission power calculation of the PUSCH data sent last time. For example, the transmission power of the PUSCH data for the retransmission may be determined by calculation according to the following formula 2.3.
PRePUSCH(i)＝min{PMAX··PPUSCH(i-1)+δstepFormula 2.3
Wherein, PPUSCH(i-1) transmitting power for sending PUSCH data in the previous time; pMAXIs the maximum UE transmit power; deltaStepThe step length of the PUSCH data transmission power is increased in the non-adaptive retransmission.
After obtaining the transmission power of the PUSCH data for the retransmission, the PUSCH data may be retransmitted with the transmission power of the PUSCH data for the retransmission.
In this embodiment, by obtaining the rising step length of the PUSCH data transmission power, the transmission power during the retransmission is higher than the transmission power of the previous time by the rising step length, and the transmission power can be increased with the increase of the retransmission times, so that the success rate of the data transmission of the PUSCH is improved, and the system throughput is improved.
Fig. 3 is a schematic diagram of a power control method according to another embodiment of the present invention, and the PUSCH data in the present embodiment takes msg3 as an example, and details a power control method for retransmitting msg3 in non-adaptive retransmission, which is shown in fig. 3 and includes the following contents in the present embodiment.
31, determining the initial transmission power value of msg 3.
For example, the transmit power P of the msg3 for initial transmission can be calculated by the following formula 2.1initmsg3(i) (unit dBm):
Pinitmsg3(i)＝min{PMAX·1·0log10(Mmsg3(i))+PO_msg3(j)+α(j)·Ppl+ΔTF(i) + f (i) } -equation 3.1
Wherein: pMAXThe unit is dBm for the maximum UE transmitting power; mmsg3(i) The unit is RB for the transmission bandwidth of the ith uplink subframe of the PUSCH; pO_msg3(j) Open loop control parameters (resolution 1dB) in dB; alpha (j) is a path loss compensation factor and is dimensionless; pplThe unit of the downlink path loss estimated by the UE side is dB; deltaTF(i) Is a cell level parameter in dB; and f (i) the step size of the power control adjustment is in dB.
32, obtaining a ramp step delta of msg3 transmitting powerStep。
Optionally, a parameter δ is obtainedStepThe following two methods can be included: (1) network side (e.g. eNodeB) configuration: for example, the eNodeB performs configuration, and adds configuration of a ramp step parameter for msg3 transmit power of non-adaptive retransmission in a system message issued by the eNodeB to the UE, for example, the eNodeB sends to the UE through a system message SIB 2. (2) Default configuration: setting a deltaStepA default value; no delta configuration on the network sideStepIn the case of (2), the delta is usedStepThe default configuration values are calculated.
33, determining the transmitting power of the current retransmission msg 3.
For example, the transmission power P of the PUSCH data for the retransmission can be determined by the following formula 3.2Remsg3(i) (unit dBm):
PRemsg3(i)＝min{PMAX··PInitmsg3+δStep*N(i)equation 3.2
Wherein: pInitmsg3The transmit power of msg3 for initial transmission; deltaStepThe step size of the rising of the msg3 transmitting power in the non-adaptive retransmission is adopted; n is a radical of(i)The number of retransmissions of msg3 in the non-adaptive retransmissions.
I.e. the ramp step delta of the transmit power of msg3 can be calculated firstStepAnd the number of retransmissions N(i)And the product is multiplied by the transmit power value P of the originally transmitted msg3Initmsg3Is (P)Initmsg3+δStep*N(i)) As the transmission power for retransmitting PUSCH data, the transmission power (P) of the retransmission msg3 is selectedInitmsg3+δStep*N(i)) And PMAXThe minimum value between the msg3 is used as the transmission power P of the current retransmission msg3Remsg3。
As another alternative, the UE may also determine the transmit power of this retransmission msg3 according to the transmit power calculation of the previous msg 3. For example, the transmit power for this retransmission msg3 can be determined by the following equation 3.3.
PRemsg3(i)＝min{PMAX··Pmsg3(i-1)+δstepFormula 3.3
Wherein, Pmsg3(i-1) the previous transmission power, PMAXIs the maximum UE transmit power; deltaStepIs the ramping step size of the msg3 transmit power in the non-adaptive retransmission.
After the transmission power of the current retransmission msg3 is obtained, the msg3 can be retransmitted by using the transmission power of the current retransmission msg 3. In this embodiment, only msg3 signaling is taken as an example to introduce a power control method for retransmitting PUSCH data, and the power control method for retransmitting other PUSCH data can be obtained by referring to equations 2.1 to 2.3 and equations 3.1 to 3.3, which are not described in detail herein.
In this embodiment, by obtaining the rising step of the msg3 transmit power, the transmit power when retransmitting msg3 this time is higher than the transmit power when transmitting msg3 the previous time by the rising step, which can increase the transmit power with the increase of the retransmission times, improve the access success rate of the UE, and improve the system performance.
Fig. 4 is a schematic diagram of a user equipment according to an embodiment of the present invention, including: an acquisition unit 41, a first determination unit 42, a second determination unit 43, and a transmission unit 44; the obtaining unit 41 is configured to obtain a rising step length of the PUSCH data transmission power; the first determining unit 42 is configured to obtain the transmission power of the retransmitted PUSCH data according to the ascending step size of the PUSCH data transmission power; the second determining unit 43 is configured to take a minimum value between the transmission power of the retransmission PUSCH data and the maximum transmission power of the user equipment as the transmission power of the retransmission PUSCH data; the transmission unit 44 is configured to retransmit the PUSCH data by using the transmission power of the PUSCH data retransmitted this time.
The obtaining unit 41 is specifically configured to receive configuration information sent by a network side, where the configuration information includes a rising step size of the PUSCH data transmission power; or acquiring a default value of the ascending step length of the PUSCH data transmission power, and taking the default value of the ascending step length of the transmission power as the ascending step length of the PUSCH data transmission power.
The first determining unit 42 is specifically configured to obtain a transmission power value and a retransmission number of the PUSCH data that is initially transmitted; and acquiring the transmission power of the retransmitted PUSCH data according to the transmission power value of the initially transmitted PUSCH data, the retransmission times and the rising step length of the PUSCH data transmission power. Further, the first determining unit 42 may be specifically configured to calculate a product of the ramp-up step of the PUSCH data transmission power and the retransmission times, and use a sum of the product and the transmission power value of the initially transmitted PUSCH data as the transmission power of the retransmitted PUSCH data.
Alternatively, the first determining unit 42 is specifically configured to obtain the transmission power of the retransmitted PUSCH data according to the transmission power of the PUSCH data transmitted last time and the ramp step size of the transmission power of the PUSCH data. Further, the first determining unit 42 may be specifically configured to use a sum of a transmission power of the PUSCH data transmitted last time and a ramp step of the transmission power of the PUSCH data as the transmission power of the retransmitted PUSCH data. The transmission unit 44 may be specifically configured to retransmit the msg3 signaling by using the transmission power of the PUSCH data retransmission this time.
In this embodiment, the transmission power during the retransmission is higher than the previous transmission power by the step size of the transmission power, so that the transmission power can be increased with the increase of the retransmission times, the access success rate of the UE is improved, and the system performance is improved.
It will be appreciated that the relevant features of the method and apparatus described above are referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (12)
1. A method for power control in non-adaptive retransmission, comprising:
acquiring the rising step length of the uplink shared data channel PUSCH data transmitting power;
acquiring the transmitting power of retransmission PUSCH data according to the rising step length of the PUSCH data transmitting power;
taking the minimum value between the transmission power of the retransmission PUSCH data and the maximum transmission power of the user equipment as the transmission power of the retransmission PUSCH data;
retransmitting the PUSCH data by adopting the transmitting power of the PUSCH data retransmitted this time,
wherein the PUSCH data comprises: msg3 signaling.
2. The method of claim 1, wherein obtaining the ramping step size of the PUSCH data transmit power comprises:
receiving configuration information sent by a network side, wherein the configuration information comprises a rising step length of the PUSCH data transmission power; or,
and acquiring a default value of the rising step length of the PUSCH data transmission power, and taking the default value of the rising step length of the transmission power as the rising step length of the PUSCH data transmission power.
3. The method according to claim 1 or 2, wherein the obtaining the transmission power of the retransmission PUSCH data according to the ramp step of the PUSCH data transmission power comprises:
acquiring a transmitting power value and retransmission times of the PUSCH data which is initially transmitted;
and acquiring the transmitting power of the retransmitted PUSCH data according to the transmitting power value of the initially transmitted PUSCH data, the retransmission times and the rising step length of the PUSCH data transmitting power.
4. The method according to claim 3, wherein the obtaining the transmission power of the retransmitted PUSCH data according to the transmission power value of the initially transmitted PUSCH data, the retransmission times, and the ramp step size of the PUSCH data transmission power comprises:
and calculating the product of the rising step length of the PUSCH data transmission power and the retransmission times, and taking the sum of the product and the transmission power value of the PUSCH data initially transmitted as the transmission power of the retransmission PUSCH data.
5. The method according to claim 1 or 2, wherein the obtaining the transmission power of the retransmission PUSCH data according to the ramp step of the PUSCH data transmission power comprises:
and acquiring the transmitting power of the retransmission PUSCH data according to the transmitting power of the PUSCH data sent at the previous time and the rising step length of the transmitting power of the PUSCH data.
6. The method of claim 5, wherein the obtaining the transmission power of the retransmitted PUSCH data according to the transmission power of the PUSCH data sent last time and the ramp step of the PUSCH data transmission power comprises:
and taking the sum of the transmission power of the PUSCH data sent last time and the rising step length of the PUSCH data transmission power as the transmission power of the retransmission PUSCH data.
7. A user device, comprising:
the device comprises an acquisition unit, a transmission unit and a control unit, wherein the acquisition unit is used for acquiring the rising step length of the data transmission power of an uplink shared data channel PUSCH;
a first determining unit, configured to obtain the transmit power of the retransmission PUSCH data according to the rising step size of the PUSCH data transmit power;
a second determining unit, configured to take a minimum value between the transmission power of the retransmission PUSCH data and the maximum transmission power of the user equipment as the transmission power of the retransmission PUSCH data; and
a transmission unit, configured to retransmit the PUSCH data by using the transmission power of the PUSCH data retransmitted this time;
wherein the PUSCH data comprises: msg3 signaling.
8. The device according to claim 7, wherein the obtaining unit is specifically configured to:
receiving configuration information sent by a network side, wherein the configuration information comprises a rising step length of the PUSCH data transmission power; or,
and acquiring a default value of the rising step length of the PUSCH data transmission power, and taking the default value of the rising step length of the transmission power as the rising step length of the PUSCH data transmission power.
9. The device according to claim 7 or 8, wherein the first determining unit is specifically configured to:
acquiring a transmitting power value and retransmission times of the PUSCH data which is initially transmitted;
and acquiring the transmitting power of the retransmitted PUSCH data according to the transmitting power value of the initially transmitted PUSCH data, the retransmission times and the rising step length of the PUSCH data transmitting power.
10. The device according to claim 9, wherein the first determining unit is specifically configured to:
and calculating the product of the rising step length of the PUSCH data transmission power and the retransmission times, and taking the sum of the product and the transmission power value of the PUSCH data initially transmitted as the transmission power of the retransmission PUSCH data.
11. The device according to claim 7 or 8, wherein the first determining unit is specifically configured to:
and acquiring the transmitting power of the retransmission PUSCH data according to the transmitting power of the PUSCH data sent at the previous time and the rising step length of the transmitting power of the PUSCH data.
12. The device according to claim 11, wherein the first determining unit is specifically configured to:
and taking the sum of the transmission power of the PUSCH data sent last time and the rising step length of the PUSCH data transmission power as the transmission power of the retransmission PUSCH data.
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| PCT/CN2011/074997 WO2012162883A1 (en) | 2011-05-31 | 2011-05-31 | Power control method in non-adaptive retransmission and user equipment |
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| CN105282837B (en) * | 2014-06-12 | 2020-05-19 | 中兴通讯股份有限公司 | Power control method, user equipment, base station and system |
| CN108811061B (en) * | 2017-04-28 | 2020-06-19 | 维沃移动通信有限公司 | Uplink transmission power control method and terminal |
| CN109392070B (en) * | 2017-08-11 | 2021-05-11 | 华为技术有限公司 | Method and device for transmitting signal |
| CN115134017B (en) * | 2017-11-17 | 2023-04-11 | 华为技术有限公司 | Method, equipment, computer storage medium and chip for transmitting message |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2012162883A1 (en) | 2012-12-06 |
| CN102918895A (en) | 2013-02-06 |
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