CN117135736A

CN117135736A - Power control method, device and equipment

Info

Publication number: CN117135736A
Application number: CN202210548227.4A
Authority: CN
Inventors: 马新利; 陈宁宇; 李男; 翁玮文
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2023-11-28

Abstract

The invention provides a power control method, a device and equipment, and relates to the technical field of communication. The method is executed by a terminal and comprises the following steps: acquiring power control parameters which are special for non-anchor carrier waves; and determining the transmitting power of the terminal corresponding to the non-anchor carrier according to the power control parameter. The scheme of the invention solves the problem that the terminal cannot access the non-anchor carrier caused by the current power control scheme.

Description

Power control method, device and equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a power control method, apparatus, and device.

Background

At present, aiming at a narrowband internet of things (Narrow Band Internet of Things, NB-IoT) service aggregation area, if a large amount of services are concurrent, after the carrier utilization rate of the original carrier reaches a certain degree, capacity expansion can be realized by deploying a multi-carrier function, and a peripheral low-service area is still a single-carrier site.

However, when the surrounding single-carrier sites and non-anchor (non-anchor) carriers of the multi-carrier sites have the same frequency, particularly in the scene of more services, the non-anchor carriers of the multi-carrier sites can be interfered by the uplink services of the neighboring sites, so that the interference of the non-anchor carriers is stronger than that of the anchor carriers. At this time, if the existing power control scheme is adopted, the target received power of the base station is adjusted by using the power control parameter of the anchor carrier, which may cause the terminal to fail to access the non-anchor carrier.

Disclosure of Invention

The invention aims to provide a power control method, a device and equipment, so as to avoid that a terminal cannot access a non-anchor carrier.

To achieve the above object, an embodiment of the present invention provides a power control method, which is executed by a terminal, including:

acquiring power control parameters which are special for non-anchor carrier waves;

and determining the transmitting power of the terminal corresponding to the non-anchor carrier according to the power control parameter.

Optionally, the power control parameter includes at least one of:

a first target received power, the first target received power being a target received power of a narrowband physical random access channel NPRACH of the non-anchor carrier;

a second target receiving power, wherein the second target receiving power is the target receiving power of a narrowband physical uplink shared channel NPUSCH of the non-anchor carrier;

a transmit power ramp step;

a target received power offset;

the transmit power is ramped off.

Optionally, the acquiring the power control parameter includes:

and receiving the power control parameters sent by the network equipment.

Optionally, the power control parameter is carried by a broadcast message.

Optionally, the determining, according to the power control parameter, the transmitting power of the terminal corresponding to the non-anchor carrier includes at least one of:

Determining the transmitting power of the preamble according to the first target receiving power;

and determining uplink data transmitting power according to the second target receiving power.

Optionally, the determining, according to the power control parameter, the transmitting power of the terminal corresponding to the non-anchor carrier further includes:

updating the transmitting power of the preamble according to the ascending step length of the transmitting power under the condition that the transmitting of the preamble fails; or,

and under the condition that the uplink data transmission fails, updating the uplink data transmission power according to the transmission power climbing step length.

Optionally, the first target received power is determined based on an initial received power of NPRACH and a floor noise rise value;

the second target received power is determined based on an initial received power of NPUSCH and a floor noise rise value.

determining the first target received power according to a third target received power and the target received power bias; wherein the third target received power is a target received power of NPRACH of the anchor carrier;

Determining the second target received power according to a fourth target received power and the target received power bias; wherein the fourth target received power is a target received power of NPUSCH of the anchor carrier.

Optionally, the determining manner of the target received power bias includes one of the following:

the network equipment determines based on the background noise of the non-anchor carrier and the background noise of the anchor carrier;

the network equipment is dynamically configured based on the signal-to-noise ratio;

the terminal is determined based on the number of random access attempts.

Optionally, the determining based on the random access attempt number includes:

the target received power bias is determined using a first adjustment factor, a step-up step size, and the number of random access attempts.

Optionally, the determining the target received power bias using a first adjustment factor, a step-up size, and the number of random access attempts includes:

by the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₁ * (numpreambimatemp-1), or, formula delta _{power-nonanchor} ＝powerRampingStep*λ ₂ * log10 (numpreammablettemp-1) calculates the target received power offset delta _{power-nonanchor} ；

Wherein lambda is ₁ And lambda (lambda) ₂ Are the first adjustment coefficients; powerRampingstep is the step of climbing; numpreambisetemp is the number of random access attempts.

Optionally, the determining, according to the power control parameter, the transmitting power of the terminal corresponding to the non-anchor carrier includes:

under the condition that the transmission of the preamble fails, updating the current transmission power of the preamble according to the transmission power rising bias; or,

and under the condition that the uplink data transmission fails, updating the current uplink data transmission power according to the transmission power climbing bias.

Optionally, the power control parameter corresponds to a coverage level of the network device.

To achieve the above object, an embodiment of the present invention provides a power control method, which is executed by a network device, including:

transmitting a power control parameter;

the power control parameters are dedicated to non-anchor carriers, and the power control parameters are used for determining the transmitting power of the terminal corresponding to the non-anchor carriers.

Optionally, the power control parameter includes at least one of:

A transmit power ramp step;

a target received power offset;

the transmit power is ramped off.

Optionally, the power control parameter is carried by a broadcast message.

Optionally, before the sending the power control parameter, at least one of the following is further included:

determining the first target received power based on an initial received power and a background noise rise value of NPRACH;

the second target received power is determined based on the initial received power of NPUSCH and a floor noise rise value.

Optionally, before the sending the power control parameter, one of the following is further included:

determining the target received power bias based on the background noise of the non-anchor carrier and the background noise of the anchor carrier;

the target received power bias is dynamically configured based on a signal-to-noise ratio.

Optionally, the dynamically configuring the target received power bias based on the signal-to-noise ratio includes:

and under the condition that the signal-to-noise ratio of the non-anchor carrier is smaller than or equal to a first threshold value, configuring the target receiving power bias by using a second adjustment coefficient, the signal-to-noise ratio of the non-anchor carrier, the first threshold value and a climbing step length.

Optionally, the configuring the target received power bias using a second adjustment factor, a signal-to-noise ratio of the non-anchor carrier, the first threshold, and a step-up step comprises:

By the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₃ *(SINR _threshold1 -SINR _nonanchor ) Alternatively, the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₄ *(10 ^{λ5*(SINRthreshold1-SINR nonanchor)} -1) calculating the target received powerOffset delta _{power-nonanchor} ；

Wherein lambda is ₃ 、λ ₄ And lambda (lambda) ₅ Are the second adjustment coefficients; powerRampingstep is the step of climbing; SINR (Signal to interference plus noise ratio) _threshold1 Is the first threshold; SINR (Signal to interference plus noise ratio) _nonanchor And the signal to noise ratio of the non-anchor carrier is the signal to noise ratio of the non-anchor carrier.

and under the condition that the absolute value of the difference value between the signal-to-noise ratio of the non-anchor carrier and the signal-to-noise ratio of the anchor carrier is larger than a second threshold value, configuring the target receiving power bias by using a third adjustment coefficient, the signal-to-noise ratio of the non-anchor carrier, the signal-to-noise ratio of the anchor carrier and a climbing step length.

Optionally, the configuring the target received power bias using a third adjustment factor, a signal-to-noise ratio of the non-anchor carrier, a signal-to-noise ratio of the anchor carrier, and a step-up step comprises:

by the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₆ *(SINR _anchor -SINR _nonanchor ) Alternatively, the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₇ *(10 ^{λ8*(SINRanchor-SINRnonanchor)} -1) calculating the target received power offset delta _{power-nonanchor} ；

Wherein lambda is ₆ 、λ ₇ And lambda (lambda) ₈ Are the third adjustment coefficients; powerRampingstep is the step of climbing; SINR (Signal to interference plus noise ratio) _anchor Signal to noise ratio of the anchor carrier; SINR (Signal to interference plus noise ratio) _nonanchor And the signal to noise ratio of the non-anchor carrier is the signal to noise ratio of the non-anchor carrier.

To achieve the above object, an embodiment of the present invention provides a power control apparatus including:

the acquisition module is used for acquiring power control parameters which are special for non-anchor carrier waves;

and the first processing module is used for determining the transmitting power of the terminal corresponding to the non-anchor carrier according to the power control parameter.

the sending module is used for sending the power control parameters;

To achieve the above object, an embodiment of the present invention provides a terminal, including a processor and a transceiver, where the processor is configured to:

To achieve the above object, an embodiment of the present invention provides a network device, including a processor and a transceiver, the transceiver configured to:

transmitting a power control parameter;

To achieve the above object, an embodiment of the present invention provides a communication device including a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; the processor, when executing the program or instructions, implements the power control method as described above.

To achieve the above object, an embodiment of the present invention provides a readable storage medium having stored thereon a program or instructions which, when executed by a processor, implement the steps in the power control method as described above.

The technical scheme of the invention has the following beneficial effects:

according to the method provided by the embodiment of the invention, the terminal obtains the special power control parameter aiming at the non-anchor carrier, so that the transmitting power of the corresponding non-anchor carrier can be determined according to the obtained power control parameter, and the situation that the terminal cannot access the non-anchor carrier is avoided.

Drawings

FIG. 1 is a flowchart of a power control method according to an embodiment of the present invention;

FIG. 2 is a second flowchart of a power control method according to an embodiment of the invention;

FIG. 3 is a schematic diagram of a power control device according to an embodiment of the present invention;

FIG. 4 is a second block diagram of a power control apparatus according to an embodiment of the invention;

Fig. 5 is a block diagram of a terminal according to an embodiment of the present invention;

fig. 6 is a block diagram of a terminal according to another embodiment of the present invention;

fig. 7 is a block diagram of a network device according to an embodiment of the present invention;

fig. 8 is a block diagram of a network device according to another embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

In addition, the terms "system" and "network" are often used interchangeably herein.

In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.

As shown in fig. 1, a power control method according to an embodiment of the present application is performed by a terminal, and includes:

102, acquiring power control parameters which are special for non-anchor carrier waves;

step 102, determining the transmitting power of the terminal corresponding to the non-anchor carrier according to the power control parameter.

Therefore, the terminal obtains the special power control parameters aiming at the non-anchor carrier, so that the transmitting power of the corresponding non-anchor carrier can be determined according to the obtained power control parameters, and the situation that the terminal cannot access the non-anchor carrier is avoided.

For example, when the terminal selects to access the non-anchor carrier through the random access algorithm, according to the above steps 102 and 103, a power control parameter dedicated to the non-anchor carrier is obtained first, and then the power control parameter is used to further obtain the transmission power of the non-anchor carrier, so that the terminal accesses the non-anchor carrier.

It should be appreciated that in this embodiment, the preamble transmit power and/or the uplink data transmit power of the terminal access non-anchor carrier is determined. Here, the preamble transmission power may also be understood as a narrowband physical random access channel (Narrow Physical Random Access Channel, NPRACH) transmission power; the uplink data transmission power is also understood as the transmission power of the narrowband physical uplink shared channel (Narrow Physical Uplink Shared Channel, NPUSCH).

Optionally, the power control parameter includes at least one of:

a transmit power ramp step;

a target received power offset;

the transmit power is ramped off.

The power control parameter comprises a transmission power rising step length which is the transmission power rising step length of a non-anchor carrier and is used for rising compensation of the transmission power of the non-anchor carrier. Specifically, one transmission power step-up step can be used for both NPRACH transmission power and NPUSCH transmission power, that is, the transmission power step-up steps used for both NPRACH transmission power and NPUSCH transmission power are the same; alternatively, the transmit power ramp up step includes an NPRACH transmit power ramp up step dedicated to NPRACH transmit power and an NPUSCH transmit power ramp up step dedicated to NPUSCH transmit power.

The target received power offset included in the power control parameter represents an offset of the target received power of the non-anchor carrier compared with the target received power of the anchor carrier. Specifically, one target received power offset may represent the NPRACH target received power offset of the non-anchor carrier compared to the anchor carrier, or may represent the target received power offset of the non-anchor carrier compared to the anchor carrier, that is, the NPRACH target received power offset of the non-anchor carrier compared to the anchor carrier is the same as the NPUSCH target received power offset of the non-anchor carrier compared to the anchor carrier; alternatively, the target received power offset includes an NPRACH target received power offset for a non-anchor carrier versus an anchor carrier, and an NPUSCH target received power offset for a non-anchor carrier versus an anchor carrier.

The power control parameters comprise a transmitting power rising bias which is used for adjusting the transmitting power rising step length of a non-anchor carrier or a non-anchor carrier. The transmission power climbing bias can be used for adjusting the transmission power climbing step length of the NPRACH transmission power and the transmission power climbing step length of the NPUSCH transmission power, that is, the NPRACH transmission power climbing bias is the same as the NPUSCH transmission power climbing bias; alternatively, the transmit power ramp bias includes adjustments dedicated to NPRACH transmit power ramp steps, and adjustments dedicated to NPUSCH transmit power ramp steps.

Optionally, in this embodiment, the power control parameter corresponds to a coverage level of the network device.

That is, the terminal can obtain multiple sets of power control parameters, where each set of power control parameters corresponds to a different coverage level of the network device. Here, the coverage level may identify coverage that is partitioned based on signal strength of the network device. For example, when the terminal acquires the power control parameter of coverage level 1 and the power control parameter of coverage level 0, the terminal determines the transmitting power of the non-anchor carrier according to the coverage of the terminal, which is currently located, and according to the coverage level of the coverage, the terminal uses the corresponding power control parameter.

It should be noted that, in this embodiment, the power control parameter may be predefined or configured, and the terminal may be directly used. Of course, the power control parameter may also be indicated by the network device, so step 101 includes:

and receiving the power control parameters sent by the network equipment.

Optionally, the power control parameter is carried by a broadcast message.

Here, the broadcast message may be a random access channel (Random Access Channel, RACH) configuration message, such as RACH-ConfigCommon-NB information element; the broadcast message may be a broadcast resource configuration message, such as a radioResourceConfigCommonSIB-NB information element; the broadcast message may be an uplink power control message such as uplink powercontrol-NB information elements.

Additionally, optionally, in this embodiment, step 102 includes at least one of:

In this way, the terminal may determine the preamble transmit power from the first target receive power in the power control parameter; the terminal may determine the uplink data transmission power from the second target received power in the power control parameter.

Wherein the method for determining the transmitting power of the preamble according to the first target receiving power canIn such a way that the preamble transmission power of the anchor carrier is used. Namely by the following formula (1): p (P) _{NPRACH-nonanchor} ＝min{P _CMAX,c (i),P0 _{NPRACH-nonanchor} +PL _c Calculating the preamble transmission power P _{NPRACH-nonanchor} . Here, P0 _{NPRACH-nonanchor} Representing a first target received power; p (P) _CMAX,c (i) Representing the maximum transmitting power of the terminal in the ith time slot on the serving cell c; PL (PL) _c Indicating the estimated path loss of the serving cell c by the terminal.

And determining uplink data transmission power according to the second target receiving power in a mode of using uplink data transmission power of an anchor carrier. Namely by the following formula (2):

calculating the uplink data transmission power P _{NPUSCH-nonanchor} . Here, M _PUSCH,c (i) Power spectral density compensation representing the i-th slot on serving cell c; p (P) _NPUSCH,c (j) Indicating the uplink desired reception level, alpha _c (j)·PL _c Indicating the path loss compensation.

Wherein P is _NPUSCH,c (j) Is obtained by the second target received power. j=1 or 2, p _NPUSCH,c (1) Representing the expected reception level, P, of a scheduled NPUSCH during data transmission _NPUSCH,c (2) Indicating the level of expected reception of the NPUSCH corresponding to MSG 3.

It should be noted that the preamble transmission power and the uplink data transmission power are in dBm.

Optionally, in this embodiment, the first target received power is determined based on an initial received power of NPRACH and a floor noise rise value;

For example, the first target received power and the second target received power are the network device root when uplink interference of the non-anchor carrier seriously causes uplink failureAnd determining according to the background noise lifting condition of the non-anchor carrier. Specifically, P0 _{NPRACH-nonanchor} ＝preambleInitialReceivedTargetPower _base +Noise _up . Here, the preambiliceinitialreceivedtargetPower _base The initial received power of NPRACH (NPRACH target received power in non-anchor carrier interference-free case); noise _up Indicating the Noise rise value, noise _up ＝Noise _now -Noise _base ，Noise _now Noise, representing the background Noise of the current network _base Indicating the background noise without interference. Therefore, when the terminal receives the first target received power through the broadcast message of the non-anchor carrier, the preamble transmission power can be determined. The second target received power may be equal to the initial received power of NPUSCH (NPUSCH target received power under non-interference carrier interference condition) +noise _up And will not be described in detail herein.

Optionally, in this embodiment, step 102 further includes:

That is, after determining the preamble transmission power according to the first target reception power, if the preamble is transmitted using the determined preamble transmission power and the preamble transmission fails, the terminal updates the preamble transmission power according to the transmission power ramp-up step in the power control parameter. In this way, the updated preamble transmission power is equal to the transmission power ramp step length+the preamble transmission power before the update (the preamble transmission power used when the preamble transmission of this time fails).

Similarly, after determining the uplink data transmission power according to the second target reception power, if the determined uplink data transmission power is used to transmit uplink data and the uplink data transmission fails, the terminal updates the uplink data transmission power according to the transmission power ramp step in the power control parameter. Thus, the updated uplink data transmission power is equal to the transmission power ramp step length+the uplink data transmission power before update (the uplink data transmission power used when the current uplink data transmission fails).

In this embodiment, if the power control parameter does not include the first target received power and/or the second target received power, in order to determine the transmit power of the non-anchor carrier, step 102 optionally includes at least one of:

That is, the terminal may obtain the first target received power using the target received power offset and the target received power of the NPRACH of the anchor carrier; the terminal may obtain a second target received power using the target received power offset and the target received power of the NPUSCH of the anchor carrier. For example, the first target received power=target received power offset+target received power of NPRACH of an anchor carrier, and the second target received power=target received power offset+target received power of NPUSCH of an anchor carrier.

Thus, for the preamble transmit power, as an alternative embodiment, the terminal may directly determine the preamble transmit power from a first target received power indicated by the network device; as an alternative embodiment, the terminal determines the first target received power first by the target received power offset indicated by the network device, and then further determines the preamble transmit power. For uplink data transmission power, as an alternative embodiment, the terminal may directly determine the uplink data transmission power by using the second target received power indicated by the network device; as an alternative embodiment, the terminal determines the second target received power by the target received power offset indicated by the network device, and then further determines the uplink data transmission power.

For example, the modification formula of the above formula (1) is P _{NPRACH-nonanchor} ＝min{P _CMAX,c (i),P0’ _{NPRACH-anchor} +Δ _{power-nonanchor} +PL _c }，P0’ _{NPRACH-anchor} Representing the third target received power; the modification formula of the above formula (2) is

Here, P' _NPUSCH,c (j) Indicating the desired level of reception, P' _NPUSCH,c (j) Is obtained by the fourth target received power.

It should also be noted that, when the uplink data transmission fails, the terminal can update the current preamble transmission power according to the target reception power offset; or under the condition that the uplink data transmission fails, updating the current uplink data transmission power according to the target received power bias.

That is, if the terminal adds the target received power offset to the original transmit power when accessing the non-anchor carrier, the updated transmit power is obtained.

Optionally, in this embodiment, the determining manner of the target received power offset includes one of the following:

the terminal is determined based on the number of random access attempts.

That is, on the one hand, the network device may determine the target received power offset based on the noise floor of the non-anchor carrier and the noise floor of the anchor carrier, and inform the terminal; on the one hand, the network equipment can be dynamically configured based on the signal-to-noise ratio and informed to the terminal; on the other hand, the terminal autonomously determines based on the number of random access attempts.

Wherein the determining based on the random access attempt number comprises:

Here, the values of the first adjustment coefficient, the step-up step length, and the random access attempt number may each include two values to be applicable to preamble (preamble) transmission and uplink data transmission, respectively; alternatively, only one value may be included, shared for preamble transmission and uplink data transmission.

After the terminal autonomously determines the target receiving power bias, the target receiving power bias can also be reported to the network equipment through MSG 3. Specifically, the terminal may report the target received power offset under the condition that the reason for determining to raise the transmit power of the non-anchor carrier is not due to the path loss. For example, the terminal is measuring that the received power (Reference Signal Receiving Power, RSRP) of the reference signal is greater than or equal to the preset RSRP threshold RSRP _threshold Reporting the target receiving power bias; or reporting the target received power offset when the distance between the terminal and the network equipment is smaller than or equal to a preset distance (for example, the terminal is in the coverage range 0 of the network equipment).

Here, the numpreablettemp is measured by the terminal, and may be further understood as the number of random access climbs and the number of attempts by the terminal to transmit the preamble. powerrammingstep is the step of climbing used at each attempt, and may be the step of climbing the non-anchor carrier or the step of climbing the anchor carrier.

By the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₁ * (numpreammablebowl-1) calculation procedure, i.e. the terminal obtains delta according to the random access attempt number of the non-anchor carrier and the climbing step used in each attempt _{power-nonanchor} 。

By the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₂ * The log10 (numpreammablettemp-1) calculation process, i.e. converting the number of random access attempts into the power gain to be compensated, obtains delta _{power-nonanchor} 。

Optionally, in this embodiment, the network device determines the target received power offset based on the background noise of the non-anchor carrier and the background noise of the anchor carrier, i.e. determining Δ considering the non-anchor carrier to anchor carrier uplink interference gap _{power-nonanchor} . For example, by the formula delta _{power-nonanchor} ＝Noise _nonanchor -Noise _anchor Noise is to _nonanchor And Noise _anchor As delta of the difference of _{power-nonanchor} . Here, noise _nonanchor Noise is the background Noise of non-anchor carrier _anchor Is the background noise of the anchor carrier. Noise _nonanchor And Noise _anchor Available from webmaster for guiding delta _{power-nonanchor} Is configured of (a).

Optionally, in this embodiment, in an aspect, the network device dynamically configures the target received power bias based on a signal-to-noise ratio, including:

Here, the signal-to-noise ratio of the non-anchor carrier is detected by the network device, and may include a preamble signal-to-noise ratio and/or an uplink data signal-to-noise ratio. And a second adjustment coefficient, a first threshold SINR _threshold1 And a step up step powerrammingstep, which may each include two values to divideThe method is applicable to preamble (preamble) transmission and uplink data transmission; alternatively, only one value may be included, shared for preamble transmission and uplink data transmission.

The network device can use the second adjustment coefficient and SINR for the case that the signal-to-noise ratio of the non-anchor carrier is less than or equal to the first threshold _threshold1 And powerramsingstep configures the target received power offset and informs the terminal.

The network device determines whether the signal-to-noise ratio of the non-anchor carrier is smaller than or equal to a first threshold, which may be when the network device detects that the signal-to-noise ratio of the non-anchor carrier of the user higher than a preset probability (e.g. 70%) is smaller than or equal to the first threshold, and considers that the uplink interference of the non-anchor carrier is serious at this time, then starts to dynamically configure the target receiving power offset. Of course, if the network device detects that the signal-to-noise ratio of the non-anchor carrier of the user higher than the preset probability (e.g. 70%) is greater than or equal to the third threshold SINR _threshold2 (e.g. SINR) _threshold2 ＞SINR _threshold1 ) The dynamic configuration of the target received power bias is stopped.

by the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₃ *(SINR _threshold1 -SINR _nonanchor ) Alternatively, the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₄ *(10 ^{λ5*(SINRthreshold1-SINR nonanchor)} -1) calculating the target received power offset delta _{power-nonanchor} ；

That is, for SINR _nonanchor ≤SINR _threshold1 The network device passes the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₃ *(SINR _threshold1 -SINR _nonanchor ) Or delta _{power-nonanchor} ＝powerRampingStep*λ ₄ *(10 ^{λ5*(SINRthreshold1-SINR nonanchor)} -1) calculating delta _{power-nonanchor} 。

Wherein the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₃ *(SINR _threshold1 -SINR _nonanchor ) I.e. at SINR _nonanchor Less than or equal to SINR _threshold1 In terms of SINR _threshold1 Is increased linearly by powerramsingstep. Formula delta _{power-nonanchor} ＝powerRampingStep*λ ₄ *(10 ^{λ5*(SINRthreshold1-SINR nonanchor)} -1), i.e. when the SINR is less than or equal to the SINR _threshold1 In terms of SINR _threshold1 Is increased by powerramsingstep.

Further optionally, in this embodiment, on the other hand, the network device dynamically configures the target received power bias based on a signal-to-noise ratio, including:

Here, the signal-to-noise ratio of the non-anchor carrier is an average uplink signal-to-noise ratio of one end time of the network device detecting the non-anchor carrier, and the signal-to-noise ratio of the anchor carrier is an average uplink signal-to-noise ratio of one end time of the network device detecting the anchor carrier. The second threshold delta, the third adjustment coefficient and the step up step powerramp may each comprise two values for the preamble transmission and the uplink data transmission, respectively; alternatively, only one value may be included, shared for preamble transmission and uplink data transmission. Here, δ.gtoreq.0.

The network device can configure the target received power bias by using the third adjustment coefficient and the powerRampingstep and inform the terminal according to the situation that the absolute value of the difference between the signal-to-noise ratio of the non-anchor carrier and the signal-to-noise ratio of the anchor carrier is larger than the second threshold.

If the absolute value of the difference between the signal-to-noise ratio of the non-anchor carrier and the signal-to-noise ratio of the anchor carrier is greater than a second threshold, the difference between the uplink channels of the anchor carrier and the non-anchor carrier is considered to be greater, and dynamic configuration target receiving power offset is required to be started; if the absolute value of the difference between the signal-to-noise ratio of the non-anchor carrier and the signal-to-noise ratio of the anchor carrier is smaller than or equal to the second threshold, the difference between the uplink channels of the anchor carrier and the non-anchor carrier is considered smaller, and the dynamic configuration of the target received power offset is stopped.

That is, for the |SINR _anchor -SINR _nonanchor The network device passes through the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₆ *(SINR _anchor -SINR _nonanchor ) Alternatively, delta _{power-nonanchor} ＝powerRampingStep*λ ₇ *(10 ^{λ8*(SINRanchor-SINRnonanchor)} -1) calculating delta _{power-nonanchor} 。

Wherein the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₆ *(SINR _anchor -SINR _nonanchor ) I.e. when the network device detects SINR _anchor Greater than SINR _nonanchor When the powerRampingStep is linearly increased according to the difference value of the powerRampingStep and the powerRampingStep; when the network is set upPreparation for SINR detection _anchor Less than SINR _nonanchor At this point, powerRampingStep is linearly decreased according to the difference between the two. Formula delta _{power-nonanchor} ＝powerRampingStep*λ ₇ *(10 ^{λ8*(SINRanchor-SINRnonanchor)} -1), i.e. when the network device detects SINR _anchor Greater than SINR _nonanchor Increasing powerRampingstep according to the difference index of the powerRampingstep and the powerRampingstep; when the network device detects SINR _anchor Less than SINR _nonanchor At that time, powerrammingstep is reduced by the difference index between the two.

Optionally, in this embodiment, step 102 includes:

And under the condition that the uplink data transmission fails, updating the current uplink data transmission power according to the transmission power rising bias.

That is, under the condition that the preamble transmission fails, for the preamble transmission power used in the current transmission, the terminal can update the preamble transmission power by using the transmission power climbing bias, so that the terminal can climb more quickly when accessing the non-anchor carrier, and under the condition that the background noise is higher, the uplink channel can reach the demodulation requirement more quickly, the random demodulation request of the terminal is demodulated, and the problem of the uplink access failure of the terminal is solved.

For example, the updated preamble transmit power P _2-preamble Equal to the current preamble transmit power P _1-preamble +powerramsingstep + transmit power ramp bias, i.e., powerramsingstep is raised using the transmit power ramp bias. Of course, on subsequent attempts, the transmit power is updated with a fixed step up, i.e., powerrammingstep+ transmit power step up bias; alternatively, the step up is raised on the basis of the last step up by using the transmit power step up bias at each attempt, i.e. the step up at each attempt is different, e.g. P _3-preamble Equal to P _2-preamble +powerrammingstep + transmit power ramp bias.

Similarly, the updating manner of the uplink data transmission power based on the transmission power ramp bias is similar to that of the preamble transmission power, and will not be described herein.

It should be further appreciated that, in this embodiment, for NB-IoT terminals, most of the NB-IoT terminals periodically report the services, and then the NB-IoT terminals are powered off after a fixed time to save power consumption of the terminal (e.g., after the water meter is powered on for 3-5 min, whether or not data transmission is successful, the NB-IoT terminals are powered off and then periodically powered on to report the data). If the first power-on reporting service in the cell of the non-anchor carrier is unsuccessful, namely the terminal transmitting power is always up but the access and service are unsuccessful, the original climbing step (transmitting power climbing step of the anchor carrier) is assumed to be powerRampingstep. In order to ensure that the required transmitting power is faster to be climbed to when the service is performed in the cell next time, the climbing step length is increased, namely, the transmitting power climbing step length of the non-anchor carrier is powerRampingStep+transmitting power climbing bias delta (delta is more than or equal to 0), so that the uplink demodulation performance is more rapidly met, and the uplink service is completed. Or the target received power bias is increased at the transmit power of the access non-anchor carrier.

The application of the embodiment of the present invention is described below in conjunction with specific scenarios:

In the first scenario, the network device includes a first target received power, a second target received power, and a transmit power ramp step in a broadcast message of a non-anchor carrier. The transmission power ramp step size can be used for determining the preamble transmission power and the uplink data transmission power of the non-anchor carrier.

When the terminal selects to access the non-anchor carrier, a first target receiving power, a second target receiving power and a transmitting power rising step length in the broadcast message are acquired. And determining a preamble transmission power according to the first target receiving power, determining an uplink data transmission power according to the second target receiving power, and then attempting to access a non-anchor carrier based on the determined preamble transmission power and/or the uplink data transmission power. If the attempt fails, the current lead code transmitting power and/or the uplink data transmitting power are raised by using the transmitting power rising step length, and the non-anchor carrier is tried to be accessed again until the preset attempt times are accessed or reached.

Scene two, the network equipment includes a third target receiving power and a fourth target receiving power in the broadcast message of the anchor carrier; the target received power offset and the transmit power ramp step size are included in the broadcast message for the non-anchor carrier. The target received power bias may be used for determining a first target received power and a second target received power, and the transmit power ramp step may be used for determining a preamble transmit power and an uplink data transmit power of a non-anchor carrier.

And when the terminal selects to access the anchor carrier, acquiring a third target receiving power and a fourth target receiving power in the broadcast message. And when the terminal selects to access the non-anchor carrier, acquiring a target receiving power bias in the broadcast message. Firstly, the terminal determines a first target receiving power according to a third target receiving power and a target receiving power bias, so as to determine a preamble transmitting power according to the first target receiving power; the second target received power can also be determined based on the fourth target received power and the target received power offset, such that the uplink data transmission power is determined based on the second target received power. The terminal then attempts to access the non-anchor carrier based on the determined preamble transmit power and/or uplink data transmit power. If the attempt fails, the current lead code transmitting power and/or the uplink data transmitting power are raised by using the transmitting power rising step length, and the non-anchor carrier is tried to be accessed again until the preset attempt times are accessed or reached.

In this scenario, the network device determines the target received power offset, which may be determined based on the background noise of the non-anchor carrier and the background noise of the anchor carrier, or may be dynamically configured based on the signal-to-noise ratio, which is specifically implemented as described above, and will not be described herein.

And in a third scenario, the network device includes a third target receiving power, a fourth target receiving power and a transmitting power climbing step in a broadcast message of the anchor carrier.

When the terminal selects to access the anchor carrier, the third target receiving power, the fourth target receiving power and the transmitting power rising step length in the broadcast message are acquired. When the terminal selects to access the non-anchor carrier, the target received power offset is determined based on the number of random access attempts. In this way, the terminal can determine the first target received power based on the third target received power and the target received power offset, thereby determining the preamble transmit power based on the first target received power, prior to the new attempt; the second target received power can also be determined based on the fourth target received power and the target received power offset, such that the uplink data transmission power is determined based on the second target received power. The terminal then attempts to access the non-anchor carrier based on the determined preamble transmit power and/or uplink data transmit power. If the attempt fails, repeating the steps to redetermine the new preamble transmitting power and/or the uplink data transmitting power, and attempting to access the non-anchor carrier again until the number of times of access or reaching the preset number of attempts.

And in a fourth scenario, the network device includes a third target receiving power, a fourth target receiving power and a transmitting power climbing step in a broadcast message of the anchor carrier.

And when the terminal selects to access the anchor carrier, acquiring a third target receiving power, a fourth target receiving power and a transmitting power rising step length in the broadcast message. When the terminal selects to access the non-anchor carrier, the terminal can determine the preamble transmitting power of the non-anchor carrier according to the third target receiving power, and determine the uplink data transmitting power of the non-anchor carrier according to the fourth target receiving power. The terminal then attempts to access the non-anchor carrier based on the determined preamble transmit power and/or uplink data transmit power. If the attempt fails, the current preamble transmission power and/or uplink data transmission power are lifted by using the transmission power climbing step length and a predefined or configured transmission power climbing bias, and the access to the non-anchor carrier is attempted again until the access or the preset attempt times are reached.

In summary, in the method of the embodiment of the invention, when uplink interference of the Anchor carrier and the non-Anchor carrier is considered to be different, the power control parameter special for the non-Anchor carrier is set, the transmitting power of the corresponding non-Anchor carrier is determined, and when the terminal is accessed to the non-Anchor carrier, the problem of stronger uplink interference of the non-Anchor carrier can be solved, so that when the transmitting power of the terminal reaches the network equipment side, the uplink channel can reach the channel demodulation requirement, the uplink SINR is improved, and the uplink access and transmission are completed.

As shown in fig. 2, a power control method according to an embodiment of the present invention is performed by a network device, and includes:

step 201, transmitting power control parameters;

Therefore, the network equipment informs the power control parameters special for the non-anchor carrier wave, so that the power control parameters can be acquired after the terminal receives the power control parameters, the transmitting power of the corresponding non-anchor carrier wave can be determined, and the situation that the terminal cannot access the non-anchor carrier wave is avoided.

Optionally, the power control parameter includes at least one of:

a transmit power ramp step;

a target received power offset;

the transmit power is ramped off.

Optionally, the power control parameter is carried by a broadcast message.

and under the condition that the signal-to-noise ratio of the non-anchor carrier is greater than or equal to a first threshold value, configuring the target receiving power bias by using a second adjustment coefficient, the signal-to-noise ratio of the non-anchor carrier, the first threshold value and a climbing step length.

It should be noted that, the method of the embodiment of the present invention is implemented in cooperation with the above-mentioned power control method executed by the terminal, and the implementation manner of the embodiment of the method is applicable to the method, so that the same technical effects can be achieved.

As shown in fig. 3, a power control apparatus according to an embodiment of the present invention includes:

an obtaining module 310, configured to obtain a power control parameter, where the power control parameter is dedicated to a non-anchor carrier;

and a first processing module 320, configured to determine, according to the power control parameter, a transmitting power of the terminal corresponding to the non-anchor carrier.

Optionally, the power control parameter includes at least one of:

a transmit power ramp step;

a target received power offset;

the transmit power is ramped off.

Optionally, the acquiring module includes:

and the receiving sub-module is used for receiving the power control parameters sent by the network equipment.

Optionally, the power control parameter is carried by a broadcast message.

Optionally, the first processing module is further configured to at least one of:

Optionally, the first processing module is further configured to:

the terminal is determined based on the number of random access attempts.

Optionally, the apparatus further comprises:

a second processing module for determining the target received power offset using a first adjustment factor, a step-up size, and the number of random access attempts.

Optionally, the second processing module is further configured to:

Optionally, the first processing module is further configured to:

The device acquires the special power control parameters aiming at the non-anchor carrier wave, so that the transmitting power of the corresponding non-anchor carrier wave can be determined according to the acquired power control parameters, and the situation that the terminal cannot access the non-anchor carrier wave is avoided.

It should be noted that, the device is a device to which the above power control method executed by the terminal is applied, and the implementation manner of the above method embodiment is applicable to the device, so that the same technical effects can be achieved.

As shown in fig. 4, a power control apparatus according to an embodiment of the present invention includes:

a transmitting module 410, configured to transmit the power control parameter;

Optionally, the power control parameter includes at least one of:

a transmit power ramp step;

A target received power offset;

the transmit power is ramped off.

Optionally, the power control parameter is carried by a broadcast message.

Optionally, the apparatus further comprises a third processing module for at least one of:

Optionally, the apparatus further comprises a fourth processing module for one of:

Optionally, the fourth processing module includes:

and the first processing unit is used for configuring the target receiving power bias by using a second adjustment coefficient, the signal-to-noise ratio of the non-anchor carrier, the first threshold and a step-up length under the condition that the signal-to-noise ratio of the non-anchor carrier is greater than or equal to the first threshold.

Optionally, the first processing unit is further configured to:

Optionally, the fourth processing module includes:

and the second processing unit is used for configuring the target receiving power bias by using a third adjustment coefficient, the signal-to-noise ratio of the non-anchor carrier, the signal-to-noise ratio of the anchor carrier and a climbing step length under the condition that the absolute value of the difference value between the signal-to-noise ratio of the non-anchor carrier and the signal-to-noise ratio of the anchor carrier is larger than a second threshold value.

Optionally, the second processing unit is further configured to:

The device informs the power control parameters special for the non-anchor carrier wave, so that the power control parameters can be obtained after the terminal receives the power control parameters, thereby determining the transmitting power of the corresponding non-anchor carrier wave and avoiding the situation that the terminal cannot access the non-anchor carrier wave.

It should be noted that, the apparatus is an apparatus to which the above power control method executed by the network device is applied, and the implementation manner of the above method embodiment is applicable to the apparatus, so that the same technical effects can be achieved.

As shown in fig. 5, a terminal 500 of an embodiment of the present invention includes a processor 510 and a transceiver 520, wherein,

the processor 510 is configured to obtain a power control parameter, where the power control parameter is dedicated to a non-anchor carrier;

the processor 510 is further configured to determine, according to the power control parameter, a transmit power of the terminal corresponding to the non-anchor carrier.

Optionally, the power control parameter includes at least one of:

a transmit power ramp step;

a target received power offset;

the transmit power is ramped off.

Optionally, the transceiver 520 is configured to receive the power control parameter sent by the network device.

Optionally, the power control parameter is carried by a broadcast message.

Optionally, the processor 510 is further configured to at least one of:

Optionally, the processor 510 is further configured to:

Optionally, the processor 510 is further configured to at least one of:

the terminal is determined based on the number of random access attempts.

Optionally, the processor 510 is further configured to:

by the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₁ * (numpreambimatemp-1), or, formula delta _{power-nonanchor} ＝powerRampingStep*λ ₂ * log10 (numpreammablettemp-1) calculation of the target received powerOffset delta _{power-nonanchor} ；

Optionally, the processor 510 is further configured to:

According to the terminal of the embodiment, the special power control parameters of the non-anchor carrier are acquired aiming at the non-anchor carrier, so that the transmitting power of the corresponding non-anchor carrier can be determined according to the acquired power control parameters, and the situation that the terminal cannot access the non-anchor carrier is avoided.

It should be noted that, the terminal applies the above power control method executed by the terminal, and the implementation manner of the embodiment of the method is applicable to the terminal, so that the same technical effects can be achieved.

A terminal according to another embodiment of the present invention, as shown in fig. 6, includes a transceiver 610, a processor 600, a memory 620, and a program or instructions stored on the memory 620 and executable on the processor 600; the processor 600, when executing the program or instructions, implements the power control method described above as being performed by the terminal.

The transceiver 610 is configured to receive and transmit data under the control of the processor 600.

Wherein in fig. 6, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 600 and various circuits of memory represented by memory 620, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 610 may be a number of elements, i.e. comprising a transmitter and a receiver, providing a unit for communicating with various other apparatus over a transmission medium. The user interface 630 may also be an interface capable of interfacing with an inscribed desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.

As shown in fig. 7, a network device 700 of an embodiment of the present invention includes a processor 710 and a transceiver 720, wherein,

the transceiver 720 is configured to transmit power control parameters;

Optionally, the power control parameter includes at least one of:

a transmit power ramp step;

a target received power offset;

the transmit power is ramped off.

Optionally, the power control parameter is carried by a broadcast message.

Optionally, the processor 710 is configured to at least one of:

Optionally, the processor 710 is further configured to one of:

Optionally, the processor 710 is further configured to:

The network equipment informs the power control parameters special for the non-anchor carrier wave, so that the power control parameters can be acquired after the terminal receives the power control parameters, thereby determining the transmitting power of the corresponding non-anchor carrier wave and avoiding the situation that the terminal cannot access the non-anchor carrier wave.

It should be noted that, the network device is a device to which the above power control method executed by the network device is applied, and the implementation manner of the embodiment of the method is applicable to the network device, so that the same technical effects can be achieved.

A network device according to another embodiment of the present invention, as shown in fig. 8, includes a transceiver 810, a processor 800, a memory 820, and a program or instructions stored on the memory 820 and executable on the processor 800; the processor 800, when executing the program or instructions, implements the power control method described above as being performed by a network device.

The transceiver 810 is configured to receive and transmit data under the control of the processor 800.

Wherein in fig. 8, a bus architecture may comprise any number of interconnected buses and bridges, and in particular, one or more processors represented by processor 800 and various circuits of memory represented by memory 820, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 810 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 in performing operations.

Embodiments of the present invention provide a communication device comprising a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; the processor, when executing the program or instructions, implements a power control method performed by a terminal as described above, or a power control method performed by a network device as described above.

The readable storage medium of the embodiment of the present invention stores a program or an instruction, where the program or the instruction when executed by a processor implements a power control method executed by a terminal as described above, or the steps in the power control method executed by a network device as described above, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein.

Wherein the processor is a processor in the terminal or the network device described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory RAM), a magnetic disk or an optical disk.

It is further noted that the terminals described in this specification include, but are not limited to, smartphones, tablets, etc., and that many of the functional components described are referred to as modules in order to more particularly emphasize their implementation independence.

In an embodiment of the invention, the modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be organized as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.

Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices.

Where a module may be implemented in software, taking into account the level of existing hardware technology, a module may be implemented in software, and one skilled in the art may, without regard to cost, build corresponding hardware circuitry, including conventional Very Large Scale Integration (VLSI) circuits or gate arrays, and existing semiconductors such as logic chips, transistors, or other discrete components, to achieve the corresponding functions. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.

The exemplary embodiments described above are described with reference to the drawings, many different forms and embodiments are possible without departing from the spirit and teachings of the present invention, and therefore, the present invention should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will convey the scope of the invention to those skilled in the art. In the drawings, the size of the elements and relative sizes may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Unless otherwise indicated, a range of values includes the upper and lower limits of the range and any subranges therebetween.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims

1. A power control method, performed by a terminal, comprising:

2. The method of claim 1, wherein the power control parameter comprises at least one of:

a transmit power ramp step;

a target received power offset;

the transmit power is ramped off.

3. The method according to claim 1 or 2, wherein the obtaining the power control parameter comprises:

And receiving the power control parameters sent by the network equipment.

4. A method according to claim 3, wherein the power control parameter is carried by a broadcast message.

5. The method of claim 2, wherein the determining the transmit power of the terminal corresponding to the non-anchor carrier according to the power control parameter comprises at least one of:

6. The method of claim 5, wherein determining the transmit power of the terminal for the non-anchor carrier based on the power control parameter further comprises:

7. The method of claim 2, wherein the first target received power is determined based on an initial received power of NPRACH and a floor noise rise value;

8. The method of claim 2, wherein the determining the transmit power of the terminal corresponding to the non-anchor carrier according to the power control parameter comprises at least one of:

9. The method of claim 2, wherein the manner of determining the target received power offset comprises one of:

the terminal is determined based on the number of random access attempts.

10. The method of claim 9, wherein the determining based on the number of random access attempts comprises:

11. The method of claim 10, wherein the determining the target received power bias using a first adjustment factor, a step-up size, and the number of random access attempts comprises:

12. The method of claim 2, wherein the determining the transmit power of the terminal corresponding to the non-anchor carrier according to the power control parameter comprises:

13. The method of claim 1, wherein the power control parameter corresponds to a coverage level of a network device.

14. A method of power control performed by a network device, comprising:

transmitting a power control parameter;

15. The method of claim 14, wherein the power control parameter comprises at least one of:

a transmit power ramp step;

a target received power offset;

the transmit power is ramped off.

16. A method according to claim 14 or 15, wherein the power control parameters are carried by broadcast messages.

17. The method of claim 15, further comprising, prior to the transmitting the power control parameter, at least one of:

18. The method of claim 15, further comprising, prior to the transmitting the power control parameter, one of:

19. The method of claim 18, wherein the dynamically configuring the target received power bias based on signal-to-noise ratio comprises:

20. The method of claim 19, wherein the configuring the target received power bias using a second adjustment factor, a signal-to-noise ratio of the non-anchor carrier, the first threshold, and a step-up size comprises:

by the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₃ *(SINR _threshold1 -SINR _nonanchor ) Alternatively, the formula delta _{power-nonanchor} ＝powerRampingStep*λ ₄ *(10 ^{λ5*(SINRthreshold1-SINRnonanchor)} -1) calculating the target received power offset delta _{power-nonanchor} ；

21. The method of claim 18, wherein the dynamically configuring the target received power bias based on signal-to-noise ratio comprises:

22. The method of claim 21, wherein the configuring the target received power bias using a third adjustment factor, a signal-to-noise ratio of the non-anchor carrier, a signal-to-noise ratio of the anchor carrier, and a step-up step comprises:

23. A power control apparatus, comprising:

24. A power control apparatus, comprising:

the sending module is used for sending the power control parameters;

25. A terminal comprising a processor and a transceiver, the processor configured to:

26. A network device comprising a processor and a transceiver, the transceiver configured to:

transmitting a power control parameter;

27. A communication device, comprising: a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; the power control method according to any one of claims 1-13, or the power control method according to any one of claims 14-22, being implemented when the program or instructions are executed by the processor.

28. A readable storage medium having stored thereon a program or instructions, which when executed by a processor, implements the power control method according to any of claims 1-13 or the steps of the power control method according to any of claims 14-22.