WO2018201834A1 - Method for reporting and receiving terminal capacity information, terminal and network side device - Google Patents

Abstract

Provided are a method for reporting and receiving terminal capacity information, a terminal and a network side device. The method comprises: a terminal sending the bandwidth supported by the terminal and the maximum transmission power level or maximum transmission power value corresponding to the bandwidth to a network side device; or the terminal receiving system bandwidth information or bandwidth supporting information about the network side device sent by the network side device; the terminal, according to the system bandwidth information or bandwidth supporting information sent by the network side device, sending the bandwidth supported by the terminal and the maximum transmission power level or maximum transmission power value corresponding to the bandwidth to the network side device.

Description

Terminal capability information reporting and receiving method, terminal and network side device

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. JP-A No. No. No. No. No. No. No. No.

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a terminal capability information reporting and receiving method, a terminal, and a network side device.

Background technique

The LTE part of the frequency band supports the maximum transmit power class of multiple terminals. For example, the maximum transmit power corresponding to the band 41 is 3 dBm, and the maximum transmit power corresponding to the power class 2 is 26 dBm.

LTE has six bandwidth configurations [1.4, 3, 5, 10, 15, 20] MHz, and the terminal needs to support the above six bandwidth configurations. For a fixed power class in the same frequency band, the maximum transmit power of the terminal in different bandwidth configurations is the same. The smaller the bandwidth, the higher the power spectral density and the better the coverage.

In the 5G system design, it is necessary to consider the inheritance of the legacy frequency band, and also consider the support for the large bandwidth of the new frequency band, which needs to be supported from [1.4, 3, 5, 10, 15, 20, 40, 80, 100, 200, 400...1000MHz] and other bandwidth configurations. The ratio of the maximum bandwidth of the system to the minimum system bandwidth will be expanded from 14 times to 700 times.

When the terminal works in the ultra-large bandwidth, in order to meet the requirements of the radio frequency index such as the spectrum radiated power template, the adjacent frequency suppression ratio and the spurious radiation, the linearity of the power amplifier of the terminal RF front end is very high. The terminal needs to perform power back-off to make the power amplifier work in a higher linearity area and meet the above RF requirements. The power backoff of the terminal also means that the effective transmit power is reduced, the power amplifier efficiency is lost, and the power consumption is improved. When the terminal works in a small bandwidth, the power amplifier can work in a better linearity region, the power amplifier efficiency is higher, and the effective transmit power is relatively large. Increase in bandwidth.

If the 5G system supports the bandwidth from 1.4MHz to 10000MHz, the definition of maintaining the maximum transmit power of the terminal in all supported bandwidths in the 4G system is still adopted, which will result in waste of power margin when the terminal works in a small bandwidth. , equivalent to network coverage shrinkage, user throughput decreased. Therefore, a more flexible definition of the maximum transmit power of the terminal is required.

Summary of the invention

The present disclosure provides a terminal capability information reporting and receiving method, a terminal, and a network side device. Therefore, the terminal can report the capability information to the network side, so that the terminal can flexibly configure the bandwidth change according to the scheduling information of the network side to reduce power consumption.

In order to solve the above technical problem, an embodiment of the present disclosure provides the following solution:

A method for reporting terminal capability information includes:

The terminal sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device.

The bandwidth supported by the terminal includes a set of all the bandwidths supported by the terminal, or the bandwidth supported by the terminal is the maximum bandwidth supported by the terminal.

Before the terminal sends the bandwidth supported by the terminal to the network side device and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth, the terminal further includes:

Receiving, by the terminal, system bandwidth information or bandwidth support information of the network side device sent by the network side device;

The step of the terminal transmitting the bandwidth supported by the terminal to the network side device and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth includes:

The terminal sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device according to the system bandwidth information or the bandwidth support information sent by the network side device.

The terminal sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device according to the system bandwidth information or the bandwidth support information sent by the network side device.

The bandwidth supported by the terminal sent by the terminal to the network side device is a set of bandwidths supported by all the terminals that are not greater than the system bandwidth of the network side device; or the bandwidth supported by the terminal sent by the terminal to the network side device The maximum bandwidth supported by the terminal that is not greater than the system bandwidth of the network side device;

The maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the network side device is a maximum transmit power level or a maximum transmit power value corresponding to a bandwidth supported by all terminals not greater than the system bandwidth of the network side device; Or the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the network side device is a maximum transmit power level or a maximum transmit power corresponding to a maximum bandwidth supported by the terminal that is not greater than the system bandwidth of the network side device. Value.

The bandwidth supported by the terminal corresponds to a maximum transmit power level or a maximum transmit power value; or a bandwidth interval range supported by the terminal corresponds to a maximum transmit power level or a maximum transmit power value, and the one bandwidth interval range Contain at least one bandwidth.

The maximum transmission power level or the maximum transmission power value corresponding to the bandwidth interval range and the bandwidth interval range is configured by the terminal according to the radio frequency front end gain of the terminal on different bandwidths in the working frequency band; or The bandwidth interval range and the maximum transmit power level or maximum transmit power value corresponding to the bandwidth interval range are preset in the protocol.

The method for reporting terminal capability information further includes:

Receiving, by the terminal, the power headroom of the network side device, the configuration information, where the power headroom reporting configuration information includes: a period of reporting the power headroom and/or a triggering event reported by the power headroom;

The terminal reports the configuration information according to the power headroom, and reports the power headroom information of the terminal;

The terminal receives the uplink resource scheduling information and the power adjustment value that are sent by the network side device and are scheduled by the terminal.

The step of reporting the configuration information by the terminal according to the power headroom and reporting the power headroom information of the terminal includes:

The terminal obtains power headroom information of the terminal according to the maximum transmit power corresponding to the pre-configured reference channel bandwidth and the terminal power value corresponding to the determined reference modulation and coding mode;

The terminal reports the power headroom information of the terminal to the network side device.

The method for reporting terminal capability information further includes:

The terminal sends the bandwidth supported by the terminal to the network side device, and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth is used by the network side device to perform uplink resource scheduling on the terminal.

The method for reporting terminal capability information further includes:

Receiving, by the terminal, a handover command delivered by the network side device;

After receiving the handover command, the terminal switches to the target network side device, and receives system bandwidth information or bandwidth support information of the target network side device that is sent by the target network side device;

The terminal sends the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth and bandwidth supported by the terminal to the target network side device.

The system bandwidth information or the bandwidth support information of the target network side device is obtained by the terminal from the broadcast information of the target network side device or from the switch command sent by the network side device.

The bandwidth supported by the terminal sent by the terminal to the target network side device is a set of bandwidths supported by all terminals that are not greater than the system bandwidth of the target network side device; or the terminal sends the bandwidth to the target network side device. The bandwidth supported by the terminal is a maximum bandwidth supported by the terminal that is not greater than the system bandwidth of the target network side device;

The maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the target network side device is a maximum transmit power level or a maximum transmit power corresponding to a bandwidth supported by all terminals not greater than the system bandwidth of the target network side device. The value of the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the target network side device is a maximum transmit power level corresponding to the maximum bandwidth supported by the terminal of the system bandwidth of the target network side device. Or maximum transmit power value.

An embodiment of the present disclosure provides a method for receiving terminal capability information, including:

The network side device receives the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth.

Before the network side device receives the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth, the network side device further includes:

The network side device sends system bandwidth information or bandwidth support information of the network side device to the terminal;

The network side device receiving the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth include:

The network side device receives, according to the system bandwidth information or the bandwidth support information, the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the network side device.

The method for receiving terminal capability information further includes:

The network side device reports configuration information to the power headroom of the terminal transmitting terminal, where the power headroom reporting configuration information includes: a period of power headroom reporting and/or a triggering event reported by the power headroom;

The network side device receiving terminal reports the power headroom information reported by the configuration information according to the power headroom;

The network side obtains the power adjustment value of the terminal according to the power headroom information reported by the terminal, the modulation and coding mode used by the scheduled uplink resource, and the maximum transmit power corresponding to the bandwidth of the scheduled uplink resource.

The network side device sends, to the terminal, uplink resource scheduling information scheduled for the terminal and the power adjustment value.

The step of obtaining the power adjustment value of the terminal according to the power headroom information reported by the terminal, the modulation and coding mode used by the scheduled uplink resource, and the maximum transmit power corresponding to the bandwidth of the scheduled uplink resource includes:

The network side device determines an uplink bandwidth BW _i to be scheduled for the terminal;

The network side device determines the maximum transmit power level or the maximum transmit power value P _i corresponding to the BW _i according to the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth;

The network side device obtains the terminal power value P _j required to adopt the preset modulation and coding mode on the BW _i ;

When P _j >P _i , reduce the modulation coding mode or reduce BW _i or reduce the modulation coding mode and BW _i until P _j ≤P _i ;

The network side device obtains the power adjustment value according to the formula: P _delta = P _{j -} P _{R -} PHR; wherein, P _R is the maximum transmit power under the reference channel bandwidth pre-configured by the terminal, and PHR is the power margin reported by the terminal.

Among them, after reducing BW _i , it also includes:

The adjusted BW _i corresponding to the maximum transmit power level or the maximum transmit power value is re-determined according to the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth.

Where P _j = SINR _i *I; SINR _i is the uplink data demodulation SNR threshold required for adopting a specific modulation and coding scheme on BW _i , and I is an interference estimation value.

The method for receiving terminal capability information further includes:

The network side device sends a handover command to the terminal.

The network side device sends the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth and bandwidth supported by the terminal to the target network side device.

The handover command includes system bandwidth information or bandwidth support information of the target network side device.

An embodiment of the present disclosure further provides a terminal, including:

And a sending module, configured to send, to the network side device, a bandwidth supported by the terminal and a maximum transmit power level or a maximum transmit power value corresponding to the bandwidth.

The terminal further includes:

a receiving module, configured to receive system bandwidth information or bandwidth support information of the network side device sent by the network side device;

The sending module sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device according to the system bandwidth information or the bandwidth support information sent by the network side device.

An embodiment of the present disclosure further provides a network side device, including:

The receiving module is configured to receive a bandwidth supported by the terminal and a maximum transmit power level or a maximum transmit power value corresponding to the bandwidth.

The network side device further includes:

a sending module, configured to send system bandwidth information or bandwidth support information of the network side device to the terminal;

The receiving module is specifically configured to receive, by the terminal, the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth that the terminal sends to the network side device according to the system bandwidth information or the bandwidth support information.

Embodiments of the present disclosure also provide a terminal, including a processor, a transceiver, and a memory;

The processor is configured to read a program in the memory and perform the following process:

Sending, to the network side device, a bandwidth supported by the terminal and a maximum transmit power level or a maximum transmit power value corresponding to the bandwidth;

The transceiver is configured to receive and transmit data;

The memory is used to store data used by the processor to perform operations.

An embodiment of the present disclosure further provides a network side device, including a processor, a transceiver, and a memory;

The processor is configured to read a program in the memory and perform the following process:

Receiving, by the terminal, the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth;

The transceiver is configured to receive and transmit data;

The memory is used to store data used by the processor to perform operations.

Embodiments of the present disclosure also provide a non-transitory computer readable storage medium storing computer readable instructions executable by a processor, the processor executing when the computer readable instructions are executed by a processor The following operations:

The bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth are sent to the network side device.

Embodiments of the present disclosure also provide a non-transitory computer readable storage medium storing computer readable instructions executable by a processor, the processor executing when the computer readable instructions are executed by a processor The following operations:

The bandwidth supported by the terminal and the maximum transmit power level or maximum transmit power value corresponding to the bandwidth.

The above aspects of the present disclosure include at least the following beneficial effects:

In the above solution of the present disclosure, the terminal can report the supported bandwidth and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth, so that the terminal can flexibly configure the change bandwidth according to the scheduling information of the network side to reduce power consumption.

DRAWINGS

FIG. 1 is a flowchart of a method for reporting terminal capability information according to some embodiments of the present disclosure;

FIG. 2 is a flowchart of a method for reporting terminal capability information according to some embodiments of the present disclosure.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the embodiments of the present invention have been shown in the drawings, the embodiments Rather, these embodiments are provided so that this disclosure will be more fully understood, and the scope of the disclosure may be fully conveyed to those skilled in the art.

Some embodiments of the present disclosure provide a method for reporting terminal capability information, including:

The terminal sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device.

In some embodiments of the present disclosure, the bandwidth supported by the terminal includes: a set of all bandwidths supported by the terminal, and further, the set may include at least one bandwidth greater than a system bandwidth of the network side device; or, the terminal supports The bandwidth is the maximum bandwidth supported by the terminal.

If the one or more bandwidths supported by the terminal are greater than the system bandwidth of the network side device, that is, the bandwidth is not supported by the network side device, the network side device selects the bandwidth supported by the network side device and supported by the terminal. The corresponding bandwidth.

The corresponding relationship between the bandwidth supported by the terminal and the maximum transmit power level supported by the terminal may be: one bandwidth supported by the terminal corresponds to a maximum transmit power level or a maximum transmit power value, and multiple bandwidths supported by the terminal and corresponding to each bandwidth The maximum transmit power level or the maximum transmit power value forms an information sequence or a plurality of information sequences, and when a plurality of information sequences are formed, the plurality of information sequences have a corresponding relationship;

The correspondence between the bandwidth supported by the terminal and the maximum transmit power level supported by the terminal is shown in the following table:

BW 1	BW 2	BW 3	...	BW i
PC 1	PC 2	PC 3	...	PC i

Wherein, BW _i as reported by the terminal of the terminal support bandwidth, which set supported by the terminal, there may be partially BW _i ≥BW _N, the system bandwidth supported by the network side device for the transmission BW _N network side device; PC _i It is the maximum transmit power level or maximum transmit power value of the terminal under the corresponding BW _i .

Specifically, the signaling format is reported in a sequence format, and the bandwidth supported by the terminal is in one-to-one correspondence with the maximum transmit power supported by the terminal.

In addition, the corresponding relationship between the bandwidth supported by the terminal and the maximum transmit power level supported by the terminal may be: a bandwidth interval range supported by the terminal corresponds to a maximum transmit power level or a maximum transmit power value, and multiple bandwidth intervals supported by the terminal And a maximum transmit power level or a maximum transmit power value corresponding to each bandwidth interval range forming a sequence of information, the one bandwidth interval range including at least one bandwidth.

Specifically, the relationship between the supported bandwidth interval range reported by the terminal and the corresponding maximum transmit power is as follows:

{Support bandwidth interval range BW _r1 , maximum transmit power level or maximum transmit power value P ₁ ;

Support bandwidth interval range BW _r2 , maximum transmit power level or maximum transmit power value P ₂ ;

......

Support bandwidth interval range BW _ri , maximum transmit power level or maximum transmit power value P _i }

The range of the bandwidth interval supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the range of the bandwidth interval are preset.

The maximum transmission power level or the maximum transmission power value corresponding to the bandwidth interval range and the bandwidth interval range is configured by the terminal according to the radio frequency front end gain of the terminal on different bandwidths in the working frequency band; or The bandwidth interval range and the maximum transmit power level or maximum transmit power value corresponding to the bandwidth interval range are preset in the protocol.

In some embodiments of the present disclosure, the terminal can report the scheduling information to the terminal according to the reported information, so that the terminal can determine the scheduling information according to the reported information, and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth. The side scheduling information is flexibly configured to change the bandwidth to reduce power consumption.

As shown in FIG. 1 , some embodiments of the present disclosure provide a method for reporting terminal capability information, including:

Step 21: The terminal sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device.

Step 22: The terminal receives the power headroom report configuration information sent by the network side device, where the power headroom reporting configuration information includes: a period of power headroom reporting and/or a trigger event reported by the power headroom;

Step 23: The terminal reports the configuration information according to the power headroom, and reports the power headroom information of the terminal.

Step 24: The terminal receives the uplink resource scheduling information and the power adjustment value that are sent by the network side device, and the power adjustment value is used by the network side device according to the power headroom information reported by the terminal and the scheduled uplink resource. The coding mode and the maximum transmit power corresponding to the bandwidth of the scheduled uplink resource are determined.

In some embodiments of the present disclosure, the bandwidth supported by the terminal includes: a set of all bandwidths supported by the terminal, and further, the set may include at least one bandwidth greater than a system bandwidth of the network side device.

If the one or more bandwidths supported by the terminal are greater than the system bandwidth of the network side device, that is, the bandwidth bandwidth is not supported by the network side device, the network side device supports the bandwidth supported by the network side device and the terminal also supports the bandwidth. Select the appropriate bandwidth.

In some embodiments of the present disclosure, the correspondence between the bandwidth supported by the terminal and the maximum transmit power level supported by the terminal may be applicable to some embodiments of the present disclosure.

The step 23 may specifically include:

Step 231: The terminal obtains power headroom information of the terminal according to the maximum transmit power corresponding to the pre-configured reference channel bandwidth and the terminal power value corresponding to the determined reference modulation and coding mode.

Step 232: The terminal reports the power headroom information of the terminal to the network side device.

Specifically, the power headroom of the terminal is calculated based on the pre-configured reference channel bandwidth (eg, 1 MHz) and the determined reference modulation and coding mode, and the network side may determine, according to the power headroom, an uplink resource bandwidth that can be scheduled to the terminal and The modulation coding method and power adjustment value used.

For example, suppose that the maximum transmit power under the reference channel bandwidth pre-configured by the terminal is P _R , and the reported power headroom value is PHR (a positive value may also be a negative value);

The uplink resource bandwidth that the network side schedules to the terminal is BW _i , and the network side can obtain the terminal on the quasi-scheduling bandwidth BW _i according to the bandwidth supported by the terminal reported by the received terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth. Maximum transmit power P _i ;

The network side calculates the terminal power value P _j required for adopting a specific modulation and coding mode on the BWi; specifically, P _j =SINR _i *I, where SINR _i is an uplink data solution required to adopt a specific modulation and coding mode on the BW _i Adjust the signal to noise ratio threshold, I is the interference estimate;

When P _j >P _i , it is necessary to reduce the modulation coding mode, or reduce BW _i , or reduce the modulation coding mode and BW _i (the corresponding maximum transmission power needs to be re-determined after adjusting BW _i ) until P _{j ≤} P _i ; for example The scheduled uplink resource adopts 64QAM modulation mode, the coding rate is 3/4, and the modulation coding mode is reduced, the modulation mode is changed to 16QAM, the coding rate is unchanged, or the modulation mode is unchanged, and the coding rate is reduced to 1/4. Or, at the same time, reduce the modulation mode and coding rate, such as 16QAM modulation, 1/4 coding rate.

The power adjustment value Pdelta=P _j -P _R -PHR of the network side computing terminal.

In some embodiments of the present disclosure, the power balance of the terminal is further reported, so that the network side can obtain the power adjustment value more accurately, so as to better perform scheduling of uplink resources for the terminal.

Some embodiments of the present disclosure provide a method for reporting terminal capability information, including:

Step 31: The terminal sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device.

Step 32: The terminal receives a handover command delivered by the network side device.

Step 33: When the terminal switches to the target network side device according to the handover command, the terminal receives the uplink resource scheduling information and the power adjustment value that are sent by the target network side device and are scheduled by the terminal.

In some embodiments of the present disclosure, the bandwidth supported by the terminal includes: a set of all bandwidths supported by the terminal, and further, the set may include at least one bandwidth greater than a system bandwidth of the network side device.

If the one or more bandwidths supported by the terminal are greater than the system bandwidth of the network side device, that is, the bandwidth bandwidth is not supported by the network side device, the network side device supports the bandwidth supported by the network side device and the terminal also supports the bandwidth. Select the appropriate bandwidth.

In some embodiments of the present disclosure, the correspondence between the bandwidth supported by the terminal and the maximum transmit power level supported by the terminal may be applicable to some embodiments of the present disclosure.

In some embodiments of the present disclosure, when the target network side device sends the uplink resource scheduling information and the power adjustment value that are scheduled by the terminal, the target network side device may also determine the terminal scheduling by using the method in some embodiments of the present disclosure. Upstream resources, as well as determined power adjustment values.

In some embodiments of the present disclosure, when the terminal switches from the source network side device to the target network side device, the bandwidth can also be flexibly configured according to the scheduling information of the target network side to reduce power consumption.

As shown in FIG. 2, some embodiments of the present disclosure provide a method for reporting terminal capability information, including:

Step 41: The terminal receives system bandwidth information or bandwidth support information of the network side device that is sent by the network side device.

Step 42: The terminal sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device according to the system bandwidth information or the bandwidth support information sent by the network side device.

The bandwidth supported by the terminal sent by the terminal to the network side device is a set of bandwidth supported by all terminals that is not greater than the system bandwidth of the network side device;

The maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the network side device is a maximum transmit power level or a maximum transmit power value corresponding to a bandwidth supported by all terminals of the system bandwidth of the network side device, The terminal reports a subset of the bandwidth it supports to reduce overhead.

In some embodiments of the present disclosure, the correspondence between the bandwidth supported by the terminal and the maximum transmit power level supported by the terminal may be:

A bandwidth supported by the terminal corresponds to a maximum transmit power level or a maximum transmit power value, and multiple bandwidths supported by the terminal and a maximum transmit power level or a maximum transmit power value corresponding to each bandwidth form an information sequence or a plurality of information sequences. When a plurality of information sequences are formed, a plurality of information sequences have a corresponding relationship;

The correspondence between the bandwidth supported by the terminal and the maximum transmit power level supported by the terminal is shown in the following table:

BW 1	BW 2	BW 3	...	BW i
PC 1	PC 2	PC 3	...	PC i

BW _i is the supported bandwidth reported by the terminal, BW _i ≤ BW _N , BW _N is the system bandwidth sent by the network side received by the terminal; PC _i is the maximum transmit power level or maximum transmit power value of the terminal under the corresponding BW _i .

Specifically, in the signaling report format, the sequence format is reported, and the terminal support bandwidth has a one-to-one correspondence with the maximum transmit power supported by the terminal.

In some embodiments of the present disclosure, the correspondence between the bandwidth supported by the terminal and the maximum transmit power level supported by the terminal may also be:

A bandwidth interval range supported by the terminal corresponds to a maximum transmit power level or a maximum transmit power value, and a plurality of bandwidth interval ranges supported by the terminal and a maximum transmit power level or a maximum transmit power value corresponding to each bandwidth interval range form an information sequence, A range of bandwidth intervals includes at least one bandwidth.

Specifically, the relationship between the supported bandwidth interval range reported by the terminal and the corresponding maximum transmit power is as follows:

{Support bandwidth interval range BW _r1 , maximum transmit power level or maximum transmit power value P ₁ ;

Support bandwidth interval range BW _r2 , maximum transmit power level or maximum transmit power value P ₂ ;

......

Support bandwidth interval range BW _ri , maximum transmit power level or maximum transmit power value P _i }

The range of the bandwidth interval supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the range of the bandwidth interval are preset.

The bandwidth interval range and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth interval range are configured by the terminal according to the radio frequency front end gain of the terminal on different bandwidths in the working frequency band; or the bandwidth interval The range and the maximum transmit power level or maximum transmit power value corresponding to the range of the bandwidth interval are preset in the protocol.

In some embodiments of the present disclosure, the terminal can report the scheduling information to the terminal according to the reported information, so that the terminal can determine the scheduling information according to the reported information, and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth. The side scheduling information is flexibly configured to change the bandwidth to reduce power consumption.

Some embodiments of the present disclosure provide a method for reporting terminal capability information, including:

Step 51: The terminal receives system bandwidth information or bandwidth support information of the network side device that is sent by the network side device.

Step 52: The terminal sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device according to the system bandwidth information or the bandwidth support information sent by the network side device.

Step 53: The terminal receives the power headroom report configuration information sent by the network side device, where the power headroom reporting configuration information includes: a period of power headroom reporting and/or a trigger event reported by the power headroom;

Step 54: The terminal reports the configuration information according to the power headroom, and reports the power headroom information of the terminal.

Step 55: The terminal receives the uplink resource scheduling information and the power adjustment value that are sent by the network side device, and the power adjustment value is used by the network side device according to the power headroom information reported by the terminal and the scheduled uplink resource. The coding mode and the maximum transmit power corresponding to the bandwidth of the scheduled uplink resource are determined.

The bandwidth supported by the terminal sent by the terminal to the network side device is a set of bandwidth supported by all terminals that is not greater than the system bandwidth of the network side device;

The maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the network side device is a maximum transmit power level or a maximum transmit power value corresponding to a bandwidth supported by all terminals of the system bandwidth of the network side device, The terminal reports a subset of the bandwidth it supports to reduce overhead.

In some embodiments of the present disclosure, the correspondence between the bandwidth supported by the terminal and the maximum transmit power level supported by the terminal may be applicable to some embodiments of the present disclosure.

The foregoing step 53 may specifically include:

Step 531: The terminal obtains power headroom information of the terminal according to a maximum transmit power corresponding to the preset reference channel bandwidth and a terminal power value corresponding to the determined reference modulation and coding mode.

Step 532: The terminal reports the power headroom information of the terminal to the network side device.

Specifically, the power headroom of the terminal is calculated based on the pre-configured reference channel bandwidth (eg, 1 MHz) and the determined reference modulation and coding mode, and the network side may determine, according to the power headroom, an uplink resource bandwidth that can be scheduled to the terminal and Modulation coding method and power adjustment value adopted;

For example, suppose that the maximum transmit power under the reference channel bandwidth pre-configured by the terminal is P _R , and the reported power headroom value is PHR (a positive value may also be a negative value);

The uplink resource bandwidth that is scheduled to be allocated to the terminal by the network side is BW _i , and the maximum transmit power P _{i of the} terminal on the pseudo-scheduling bandwidth BW _i can be obtained according to the received terminal reporting the bandwidth supported by the terminal and the maximum transmit power level corresponding to the bandwidth;

The network side calculates the terminal power value P _j required to adopt a specific modulation and coding mode on the BWi; P _i = SINR _i *I, where SINR _i is the uplink data demodulation signal noise required to adopt a specific modulation and coding mode on the BW _i Specific threshold, I is the interference estimate;

When P _j >P _i , it is necessary to reduce the modulation coding mode, or reduce BW _i , or reduce the modulation coding mode and BW _i (the corresponding maximum transmission power needs to be re-determined after adjusting BW _i ) until P _{j ≤} P _i ; for example The scheduled uplink resource adopts 64QAM modulation mode, the coding rate is 3/4, and the modulation coding mode is reduced, the modulation mode is changed to 16QAM, the coding rate is unchanged, or the modulation mode is unchanged, and the coding rate is reduced to 1/4. Or, at the same time, reduce the modulation mode and coding rate, such as 16QAM modulation, 1/4 coding rate.

The power adjustment value Pdelta=P _j -P _R -PHR of the network side computing terminal.

In some embodiments of the present disclosure, the power balance of the terminal is further reported, so that the network side can obtain the power adjustment value more accurately, so as to better perform scheduling of uplink resources for the terminal.

Some embodiments of the present disclosure provide a method for reporting terminal capability information, including:

Step 61: The terminal receives system bandwidth information or bandwidth support information of the network side device that is sent by the network side device.

Step 62: The terminal sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device according to the system bandwidth information or the bandwidth support information sent by the network side device.

Step 63: The terminal receives a handover command delivered by the network side device.

Step 64: After the terminal switches to the target network side device according to the handover command, the terminal receives system bandwidth information or bandwidth support information of the target network side device that is sent by the target network side device.

Step 65: The terminal sends, to the target network side device, a maximum transmit power level or a maximum transmit power value corresponding to the bandwidth and bandwidth supported by the terminal.

In some embodiments of the present disclosure, the correspondence between the bandwidth supported by the terminal and the maximum transmit power level supported by the terminal may be applicable to some embodiments of the present disclosure.

The system bandwidth information or the bandwidth support information of the target network side device is obtained by the terminal from the broadcast information of the target network side device or from the switch command sent by the network side device.

The bandwidth supported by the terminal sent by the terminal to the target network side device is a set of bandwidth supported by all terminals that is not greater than the system bandwidth of the target network side device;

The maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the target network side device is a maximum transmit power level or a maximum transmit power corresponding to a bandwidth supported by all terminals not greater than the system bandwidth of the target network side device. Value. The terminal reports a subset of the bandwidth it supports to reduce overhead.

In some embodiments of the present disclosure, when the terminal switches from the source network side device to the target network side device, the bandwidth can also be flexibly configured according to the scheduling information of the target network side to reduce power consumption.

Some embodiments of the present disclosure provide a method for receiving terminal capability information, including:

Step 71: The network side device receives the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth.

Further, the method may further include:

Step 72: The network side device reports configuration information to the power headroom of the terminal sending terminal, where the power headroom reporting configuration information includes: a period of power headroom reporting and/or a triggering event reported by the power headroom;

Step 73: The network side device receiving terminal reports the power headroom information reported by the configuration information according to the power headroom;

Step 74: The network side obtains the power adjustment value of the terminal according to the power headroom information reported by the terminal, the modulation and coding mode used by the scheduled uplink resource, and the maximum transmit power corresponding to the bandwidth of the scheduled uplink resource.

Step 75: The network side device sends, to the terminal, uplink resource scheduling information scheduled for the terminal, and the power adjustment value.

The step 74 may specifically include:

Step 741, the network side device determines an uplink bandwidth BW _i to be scheduled for the terminal;

Step 742, the network-side terminal apparatus according to the supported bandwidth reported by the terminal and a bandwidth corresponding to a maximum transmit power level or the maximum transmission power value, determining a maximum transmit power level or the maximum transmission power value corresponding to the BW _i P _i;

Step 743, the network side device obtains the terminal power value P _j required to adopt the preset modulation and coding mode on the BW _i ; preferably, P _j =SINR _i *I; wherein, the SINR _i is a specific modulation and coding mode on the BW _i The required uplink data demodulation signal to noise ratio threshold, I is the interference estimation value;

Step 744, when P _j >P _i , reduce the modulation coding mode or reduce BW _i or reduce the modulation coding mode and BW _i until P _j ≤P _i ; for example, 64QAM modulation mode is adopted in the scheduled uplink resource, and the coding rate is 3/4, the modulation coding mode is reduced, the modulation mode is changed to 16QAM, the coding rate is unchanged, or the modulation mode is unchanged, the coding rate is reduced to 1/4, or the modulation mode and the coding rate are reduced at the same time. 16QAM modulation, 1/4 coding rate.

Step 745: The network side device obtains a power adjustment value according to the formula: Pdelta=P _j -PR-PHR, where PR is the maximum transmit power under the reference channel bandwidth pre-configured by the terminal, and PHR is the power margin reported by the terminal.

Further, in step 744, after lowering BW _i , the method may further include:

The adjusted BW _i corresponding to the maximum transmit power level or the maximum transmit power value is re-determined according to the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth.

In some embodiments of the present disclosure, further, the method may further include:

Step 761: The network side device sends a handover command to the terminal.

Step 771: The network side device sends, to the target network side device, the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth and bandwidth supported by the terminal, and the maximum transmit power corresponding to the bandwidth and bandwidth supported by the target network side device. After the terminal switches to the target network side device according to the handover command, the terminal transmits the uplink resource scheduling information and the power adjustment value scheduled for the terminal to the terminal.

In some embodiments of the present disclosure, further, the method may further include:

Step 762: The network side device sends a handover command to the terminal, where the handover command includes system bandwidth information or bandwidth support information of the target network side device.

Step 773: The network side device sends, to the target network side device, the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth and bandwidth supported by the terminal, and the maximum transmit power corresponding to the bandwidth and bandwidth supported by the target network device. After the terminal switches to the target network side device according to the handover command, the terminal transmits the uplink resource scheduling information and the power adjustment value scheduled for the terminal to the terminal.

In some embodiments of the present disclosure, the terminal can report the scheduling information to the terminal according to the reported information, and the terminal can determine the scheduling information according to the reported information, and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth. The scheduling information on the network side is flexibly configured to change the bandwidth to reduce power consumption.

Some embodiments of the present disclosure provide a method for receiving terminal capability information, including:

Step 81: The network side device sends system bandwidth information or bandwidth support information of the network side device to the terminal.

Step 82: The network side device receives, according to the system bandwidth information or the bandwidth support information, the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the network side device.

Further, the method may further include:

Step 83: The network side device reports configuration information to the power headroom of the terminal sending terminal, where the power headroom reporting configuration information includes: a period of power headroom reporting and/or a triggering event reported by the power headroom;

Step 84: The network side device receiving terminal reports the power headroom information reported by the configuration information according to the power headroom;

Step 85: The network side obtains the power adjustment value of the terminal according to the power headroom information reported by the terminal, the modulation and coding mode used by the scheduled uplink resource, and the maximum transmit power corresponding to the bandwidth of the scheduled uplink resource.

Step 86: The network side device sends, to the terminal, uplink resource scheduling information scheduled for the terminal, and the power adjustment value.

In some embodiments of the present disclosure, step 85 may specifically include:

Step 851: The network side device determines an uplink bandwidth BW _i to be scheduled for the terminal.

Step 852, the network-side terminal apparatus according to the supported bandwidth reported by the terminal and a bandwidth corresponding to a maximum transmit power level or the maximum transmission power value, determining a maximum transmit power level or the maximum transmission power value corresponding to the BW _i P _i;

Step 853, the network side device obtains the terminal power value P _j required to adopt the preset modulation and coding mode on the BW _i ; preferably, P _j =SINR _i *I; wherein, the SINR _i is a specific modulation and coding mode on the BW _i The required uplink data demodulation signal to noise ratio threshold, I is the interference estimation value;

Step 854, when P _j >P _i , reduce the modulation coding mode or reduce BW _i or reduce the modulation coding mode and BW _i until P _j ≤P _i ; for example, 64QAM modulation mode is adopted in the scheduled uplink resource, and the coding rate is 3/4, the modulation coding mode is reduced, the modulation mode is changed to 16QAM, the coding rate is unchanged, or the modulation mode is unchanged, the coding rate is reduced to 1/4, or the modulation mode and the coding rate are reduced at the same time. 16QAM modulation, 1/4 coding rate.

Step 855: The network side device obtains a power adjustment value according to the formula: Pdelta=P _j -PR-PHR, where PR is the maximum transmit power under the reference channel bandwidth pre-configured by the terminal, and PHR is the power margin reported by the terminal.

Preferably, in step 854, after lowering BW _i , the method further includes:

The adjusted BW _i corresponding to the maximum transmit power level or the maximum transmit power value is re-determined according to the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth.

Some embodiments of the present disclosure may further include:

Step 871: The network side device sends a handover command to the terminal.

Step 881: The network side device sends, to the target network side device, the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth and bandwidth supported by the terminal, and the maximum transmit power corresponding to the bandwidth and bandwidth supported by the target network side device. After the terminal switches to the target network side device according to the handover command, the terminal transmits the uplink resource scheduling information and the power adjustment value scheduled for the terminal to the terminal.

In some embodiments of the present disclosure, further, the method may further include:

Step 872: The network side device sends a handover command to the terminal, where the handover command includes system bandwidth information or bandwidth support information of the target network side device.

Step 882: The network side device sends, to the target network side device, the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth and bandwidth supported by the terminal, and the maximum transmit power corresponding to the bandwidth and bandwidth supported by the target network side device. After the terminal switches to the target network side device according to the handover command, the terminal transmits the uplink resource scheduling information and the power adjustment value scheduled for the terminal to the terminal.

In some embodiments of the present disclosure, the terminal can report the scheduling information to the terminal according to the reported information, so that the terminal can determine the scheduling information according to the reported information, and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth. The side scheduling information is flexibly configured to change the bandwidth to reduce power consumption.

Some embodiments of the present disclosure provide a terminal, including:

And a sending module, configured to send, to the network side device, a bandwidth supported by the terminal and a maximum transmit power level or a maximum transmit power value corresponding to the bandwidth.

Further, it may also include:

a receiving module, configured to receive system bandwidth information or bandwidth support information of the network side device sent by the network side device;

The sending module sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device according to the system bandwidth information or the bandwidth support information sent by the network side device.

It should be noted that all the methods of some embodiments of the present disclosure are applicable to the embodiment of the terminal, and the same technical effects can be achieved. The terminal may be a user equipment, and the acquiring module and the receiving module may be implemented by a receiver of the terminal, and the related processing procedure may be implemented by a processor of the terminal, and the terminal may further include a memory for storing the related information. , a transmitter that sends relevant information, and the like.

Some embodiments of the present disclosure provide a network side device, including:

The receiving module is configured to receive a bandwidth supported by the terminal and a maximum transmit power level or a maximum transmit power value corresponding to the bandwidth.

Further, it may further include:

a sending module, configured to send system bandwidth information or bandwidth support information of the network side device to the terminal;

The receiving module is specifically configured to receive, by the terminal, the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth that the terminal sends to the network side device according to the system bandwidth information or the bandwidth support information.

It should be noted that all the methods of some embodiments of the present disclosure are applicable to the embodiment of the network side device, and the same technical effects can be achieved. Further, the network side device may be a base station, and the mapping module of the base station may be implemented by a processor of the base station, and the sending module may be implemented by a transmitter of the base station. Further, the base station may further include storing the related information. Memory, etc.

In some embodiments of the present disclosure, the terminal sends the maximum bandwidth supported by the terminal and the corresponding maximum transmit power level or maximum transmit power value to the network side device.

In some embodiments of the present disclosure, the bandwidth supported by the terminal sent by the terminal to the network side device is a maximum bandwidth supported by the terminal that is not greater than the system bandwidth of the network side device.

In some embodiments of the present disclosure, the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the network side device is a maximum transmit power level corresponding to the maximum bandwidth supported by the terminal that is not greater than the system bandwidth of the network side device. Or maximum transmit power value.

In some embodiments of the present disclosure, the terminal sends the bandwidth supported by the terminal to the network side device, and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth is used to assist the network side device to perform uplink resource scheduling on the terminal.

In some embodiments of the present disclosure, the bandwidth supported by the terminal sent by the terminal to the target network side device is a maximum bandwidth supported by the terminal that is not greater than the system bandwidth of the target network side device.

In some embodiments of the present disclosure, the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the target network side device is a maximum transmit corresponding to the maximum bandwidth supported by the terminal that is not greater than the system bandwidth of the target network side device. Power level or maximum transmit power value.

The foregoing embodiment of the present disclosure reports the maximum transmit power level or the maximum transmit power value corresponding to the supported bandwidth and bandwidth to the network by the terminal; or the terminal reports the supported bandwidth to the network according to the system bandwidth message sent by the network side (less than the said System bandwidth) and the maximum transmit power level or maximum transmit power value corresponding to the bandwidth; and the network side performs uplink resource scheduling and power control according to the bandwidth and bandwidth corresponding maximum transmit power information reported by the terminal, so that the terminal supports the maximum bandwidth in the 5G era. When the difference between the minimum bandwidth and the minimum bandwidth is large, on the one hand, the power amplifier capability of the terminal can be maximized, higher power can be transmitted at a low bandwidth (enhanced coverage), and relatively low power can be used at a large bandwidth (upgrading power amplifier) Efficiency); on the other hand, resource scheduling and power control can be effectively performed according to terminal capabilities.

The foregoing embodiment of the present disclosure reports, by the terminal, the bandwidth supported by the terminal and the corresponding maximum transmit power level or maximum transmit power value to the network side, instead of requiring the bandwidth supported by the terminal to use the same maximum transmit power level, which can reduce terminal work. The power margin is wasted at a small bandwidth.

The above is a description of some embodiments of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and refinements without departing from the principles of the present disclosure. It should be considered as the scope of protection of this disclosure.

Claims (28)

1. A method for reporting terminal capability information includes:

   The terminal sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device.
2. The method for reporting terminal capability information according to claim 1, wherein the bandwidth supported by the terminal comprises a set of all bandwidths supported by the terminal; or the bandwidth supported by the terminal is a maximum bandwidth supported by the terminal.
3. The method for reporting terminal capability information according to claim 1, wherein before the terminal sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device, the method further includes:

   Receiving, by the terminal, system bandwidth information or bandwidth support information of the network side device sent by the network side device;

   The step of the terminal transmitting the bandwidth supported by the terminal to the network side device and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth includes:

   The terminal sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device according to the system bandwidth information or the bandwidth support information sent by the network side device.
4. The method for reporting terminal capability information according to claim 3, wherein the terminal sends the bandwidth supported by the terminal and the maximum transmit power level corresponding to the bandwidth to the network side device according to the system bandwidth information or the bandwidth support information sent by the network side device or When the maximum transmit power value is

   The bandwidth supported by the terminal sent by the terminal to the network side device is a set of bandwidths supported by all the terminals that are not greater than the system bandwidth of the network side device; or the bandwidth supported by the terminal sent by the terminal to the network side device The maximum bandwidth supported by the terminal that is not greater than the system bandwidth of the network side device;

   The maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the network side device is a maximum transmit power level or a maximum transmit power value corresponding to a bandwidth supported by all terminals not greater than the system bandwidth of the network side device; Or the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the network side device is a maximum transmit power level or a maximum transmit power corresponding to a maximum bandwidth supported by the terminal that is not greater than the system bandwidth of the network side device. Value.
5. The method for reporting terminal capability information according to claim 1 or 3, wherein

   One bandwidth supported by the terminal corresponds to a maximum transmit power level or a maximum transmit power value; or a bandwidth interval range supported by the terminal corresponds to a maximum transmit power level or a maximum transmit power value, and the one bandwidth interval range includes at least A bandwidth.
6. The method for reporting terminal capability information according to claim 5, wherein the bandwidth interval range and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth interval range are determined by the terminal according to different bandwidths on the working frequency band. The radio frequency front end gain of the terminal is configured; or the bandwidth interval range and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth interval range are preset in the protocol.
7. The method for reporting terminal capability information according to claim 1 or 3, further comprising:

   Receiving, by the terminal, the power headroom of the network side device, the configuration information, where the power headroom reporting configuration information includes: a period of reporting the power headroom and/or a triggering event reported by the power headroom;

   The terminal reports the configuration information according to the power headroom, and reports the power headroom information of the terminal;

   The terminal receives the uplink resource scheduling information and the power adjustment value that are sent by the network side device and are scheduled by the terminal.
8. The method for reporting terminal capability information according to claim 7, wherein the step of reporting the configuration information by the terminal according to the power headroom and reporting the power headroom information of the terminal includes:

   The terminal obtains power headroom information of the terminal according to the maximum transmit power corresponding to the pre-configured reference channel bandwidth and the terminal power value corresponding to the determined reference modulation and coding mode;

   The terminal reports the power headroom information of the terminal to the network side device.
9. The method for reporting terminal capability information according to any one of claims 1 to 3, further comprising:

   The terminal sends the bandwidth supported by the terminal to the network side device, and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth is used to assist the network side device to perform uplink resource scheduling on the terminal;

   Receiving, by the terminal, a handover command delivered by the network side device;

   When the terminal switches to the target network side device according to the handover command, the terminal receives the uplink resource scheduling information and the power adjustment value that are sent by the target network side device for the terminal.
10. The method for reporting terminal capability information according to claim 3, further comprising:

    Receiving, by the terminal, a handover command delivered by the network side device;

    After receiving the handover command, the terminal switches to the target network side device, and receives system bandwidth information or bandwidth support information of the target network side device that is sent by the target network side device;

    The terminal sends the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth and bandwidth supported by the terminal to the target network side device.
11. The method for reporting terminal capability information according to claim 10, wherein

    The system bandwidth information or the bandwidth support information of the target network side device is obtained by the terminal from the broadcast information of the target network side device or from the switch command sent by the network side device.
12. The method for reporting terminal capability information according to claim 10, wherein

    The bandwidth supported by the terminal sent by the terminal to the target network side device is a set of bandwidths supported by all terminals that are not greater than the system bandwidth of the target network side device; or the terminal sent by the terminal to the target network side device The supported bandwidth is a maximum bandwidth supported by the terminal that is not greater than the system bandwidth of the target network side device;

    The maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the target network side device is a maximum transmit power level or a maximum transmit power corresponding to a bandwidth supported by all terminals not greater than the system bandwidth of the target network side device. The value of the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the target network side device is a maximum transmit power level corresponding to the maximum bandwidth supported by the terminal of the system bandwidth of the target network side device. Or maximum transmit power value.
13. A method for receiving terminal capability information includes:

    The network side device receives the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth.
14. The method for receiving terminal capability information according to claim 13, wherein before the network side device receives the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth, the network side device further includes:

    The network side device sends system bandwidth information or bandwidth support information of the network side device to the terminal;

    The network side device receiving the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth include:

    The network side device receives, according to the system bandwidth information or the bandwidth support information, the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth sent by the terminal to the network side device.
15. The method for receiving terminal capability information according to claim 13 or 14, further comprising:

    The network side device reports configuration information to the power headroom of the terminal transmitting terminal, where the power headroom reporting configuration information includes: a period of power headroom reporting and/or a triggering event reported by the power headroom;

    The network side device receiving terminal reports the power headroom information reported by the configuration information according to the power headroom;

    The network side obtains the power adjustment value of the terminal according to the power headroom information reported by the terminal, the modulation and coding mode used by the scheduled uplink resource, and the maximum transmit power corresponding to the bandwidth of the scheduled uplink resource.

    The network side device sends, to the terminal, uplink resource scheduling information scheduled for the terminal and the power adjustment value.
16. The method for receiving terminal capability information according to claim 15, wherein the power headroom information reported by the terminal, the modulation and coding mode adopted by the scheduled uplink resource, and the maximum transmit power corresponding to the bandwidth of the scheduled uplink resource are obtained. The steps of the power adjustment value of the terminal include:

    The network side device determines an uplink bandwidth BW _i to be scheduled for the terminal;

    The network side device determines the maximum transmit power level or the maximum transmit power value P _i corresponding to the BW _i according to the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth;

    The network side device obtains the terminal power value P _j required to adopt the preset modulation and coding mode on the BW _i ;

    When P _j >P _i , reduce the modulation coding mode or reduce BW _i or reduce the modulation coding mode and BW _i until P _j ≤P _i ;

    The network side device obtains the power adjustment value according to the formula: P _delta = P _{j -} P _{R -} PHR; wherein, P _R is the maximum transmit power under the reference channel bandwidth pre-configured by the terminal, and PHR is the power margin reported by the terminal.
17. The method for receiving terminal capability information according to claim 16, wherein after reducing BW _i , the method further comprises:

    The adjusted BW _i corresponding to the maximum transmit power level or the maximum transmit power value is re-determined according to the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth.
18. The terminal capability information receiving method according to claim 16, wherein

    P _j =SINR _i *I;

    Wherein, SINR _i is an uplink data demodulation SNR threshold required for adopting a specific modulation and coding scheme on BW _i , and I is an interference estimation value.
19. The method for receiving terminal capability information according to claim 13 or 14, further comprising:

    The network side device sends a handover command to the terminal.

    The network side device sends the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth and bandwidth supported by the terminal to the target network side device.
20. The method for receiving terminal capability information according to claim 19, wherein the handover command includes system bandwidth information or bandwidth support information of a target network side device.
21. A terminal comprising:

    And a sending module, configured to send, to the network side device, a bandwidth supported by the terminal and a maximum transmit power level or a maximum transmit power value corresponding to the bandwidth.
22. The terminal of claim 21, further comprising:

    a receiving module, configured to receive system bandwidth information or bandwidth support information of the network side device sent by the network side device;

    The sending module sends the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth to the network side device according to the system bandwidth information or the bandwidth support information sent by the network side device.
23. A network side device, including:

    The receiving module is configured to receive a bandwidth supported by the terminal and a maximum transmit power level or a maximum transmit power value corresponding to the bandwidth.
24. The network side device according to claim 23, further comprising:

    a sending module, configured to send system bandwidth information or bandwidth support information of the network side device to the terminal;

    The receiving module is specifically configured to receive, by the terminal, the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth that the terminal sends to the network side device according to the system bandwidth information or the bandwidth support information.
25. A terminal comprising a processor, a transceiver and a memory;

    The processor is configured to read a program in the memory and perform the following process:

    Sending, to the network side device, a bandwidth supported by the terminal and a maximum transmit power level or a maximum transmit power value corresponding to the bandwidth;

    The transceiver is configured to receive and transmit data;

    The memory is used to store data used by the processor to perform operations.
26. A network side device, including a processor, a transceiver, and a memory;

    The processor is configured to read a program in the memory and perform the following process:

    Receiving, by the terminal, the bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth;

    The transceiver is configured to receive and transmit data;

    The memory is used to store data used by the processor to perform operations.
27. A non-transitory computer readable storage medium storing computer readable instructions executable by a processor, the processor performing the following operations when the computer readable instructions are executed by a processor:

    The bandwidth supported by the terminal and the maximum transmit power level or the maximum transmit power value corresponding to the bandwidth are sent to the network side device.
28. A non-transitory computer readable storage medium storing computer readable instructions executable by a processor, the processor performing the following operations when the computer readable instructions are executed by a processor:

    The bandwidth supported by the terminal and the maximum transmit power level or maximum transmit power value corresponding to the bandwidth.

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