CN107371229B

CN107371229B - Power control method, device and user equipment

Info

Publication number: CN107371229B
Application number: CN201610319019.1A
Authority: CN
Inventors: 杨玲; 赵亚军; 苟伟; 彭佛才
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-05-13
Filing date: 2016-05-13
Publication date: 2022-10-11
Anticipated expiration: 2036-05-13
Also published as: CN107371229A

Abstract

The invention provides a power control method, a power control device and User Equipment (UE), wherein the method comprises the following steps: determining a power headroom of a predetermined signal or a predetermined channel transmitted by a User Equipment (UE) on a predetermined subframe on an unlicensed carrier; according to the invention, the problem that accurate channel state information cannot be obtained from the UE side in the related technology is effectively solved, and the effect of determining the accurate channel state information according to the obtained power headroom is achieved.

Description

Power control method, device and user equipment

Technical Field

The present invention relates to the field of communications, and in particular, to a power control method, apparatus, and User Equipment (UE).

Background

With the rapid growth of data services, data transmission pressure on carriers of licensed spectrum is increasing. Therefore, sharing data traffic in the licensed carrier by the carrier of the unlicensed spectrum becomes an important Evolution direction of the subsequent Long Term Evolution (LTE). Wherein: the unlicensed spectrum has the following characteristics: free/low cost; the admission requirement is low, and the cost is low; the available bandwidth is large; resource sharing; and so on.

In the standardized research process of authorized Assisted Access (LAA), sounding Reference Signal (SRS) is being studied as an important issue. The SRS is introduced to acquire uplink timing and uplink Channel State Information (CSI). In addition, LAA is a natural Time Division Duplex (TDD) carrier, and may acquire uplink CSI using downlink CSI according to channel reciprocity. However, since the LBT result limits downlink signal transmission, it is difficult for the base station to obtain channel information feedback from the UE side in time.

Therefore, there is a problem that accurate channel state information cannot be acquired from the UE side in the LAA-based scenario.

Disclosure of Invention

The embodiment of the invention provides a power control method, a power control device and user equipment, which at least solve the problem that accurate channel state information cannot be acquired from a UE (user equipment) side in the related art based on an LAA (local area access) scene.

According to an embodiment of the present invention, there is provided a power control method including: determining a power headroom of a predetermined signal or a predetermined channel transmitted by a User Equipment (UE) on a predetermined subframe on an unlicensed carrier; and reporting the power headroom on a preset physical uplink resource according to a preset reporting mode.

Optionally, the predetermined manner for reporting the power headroom includes at least one of the following: reporting the power headroom periodically; reporting the power headroom by event triggering; triggering and reporting the power allowance by a physical layer Downlink Control Information (DCI) signaling; reporting the power headroom in an implicit mode; reporting the power margin in a mode of mixing periodicity and event trigger; reporting the power headroom in a mode of mixing a periodic mode and an implicit mode; and reporting the power margin in a mode of mixing the periodical DCI signaling and the physical layer DCI signaling.

Optionally, the reporting period of the power headroom includes at least one of: 1ms,2ms,3ms,4ms,5ms,6ms,7ms,8ms,9ms,10ms,20ms,50ms,100ms,200ms,500ms,1000ms.

Optionally, reporting the power headroom according to an event trigger manner includes at least one of: and under the condition that the change of the path loss reaches a preset threshold value within preset time, triggering and reporting the power allowance.

Optionally, the dynamically triggering the power headroom report through a physical layer DCI signaling includes at least one of: a field for indicating triggering of power headroom reporting is carried in a physical layer DCI signaling; determining a timing relation value of a time domain subframe or a candidate time domain subframe for reporting the power margin; a field for indicating a time domain subframe or a candidate time domain subframe for reporting the power headroom; and triggering the power headroom to carry out one-time reporting or multiple times of reporting by the DCI signaling of the physical layer.

Optionally, the reporting of the power headroom in an implicit manner includes at least one of: triggering and reporting the power headroom by the end time of downlink transmission burst; triggering and reporting the power headroom through the uplink transmission burst starting moment; and triggering and reporting the power allowance when the Physical Uplink Shared Channel (PUSCH) of the UE exists in the uplink transmission burst.

Optionally, reporting the power headroom in a manner of mixing a periodicity and an event trigger includes: reporting the period of the power headroom, wherein the period of the reporting of the power headroom takes effect only under the condition that the reporting of the power headroom is triggered by an event; and the event triggers the power headroom to be reported once or for multiple times at a periodic point.

Optionally, reporting the power headroom in a manner of mixing a periodic manner and an implicit manner, includes: reporting the period of the power headroom, wherein the period is only after the uplink transmission burst is finished, or the uplink transmission burst is started, or the uplink transmission burst takes effect; and the uplink transmission burst comprises one or more Physical Uplink Shared Channels (PUSCHs) of the UE.

Optionally, reporting the power headroom in a manner of mixing a periodic DCI signaling with a physical layer DCI signaling includes: and the period of reporting the power headroom is triggered by a physical layer DCI signaling and then takes effect after the reporting of the power headroom is carried out.

Optionally, the predetermined physical uplink resource includes one of: a Physical Uplink Shared Channel (PUSCH); and a Physical Uplink Control Channel (PUCCH).

Optionally, the predetermined physical uplink resource is located in an unlicensed carrier or a licensed carrier.

Optionally, before reporting the power headroom on the predetermined physical uplink resource, the method further includes: and determining a time domain position for reporting the power headroom.

Optionally, the determining the time domain position reported by the power headroom includes: a DCI signaling configuration mode is carried out through physical layer downlink control information; controlling the RRC signaling configuration mode through a high-level radio link; the base station and the UE agree in advance.

Optionally, determining, by a physical layer DCI signaling, a time domain position for reporting the power headroom includes one of: triggering a physical layer DCI signaling reported by the power headroom to be sent on a subframe n, and determining a time domain subframe position reported by the power headroom or a candidate time domain subframe position according to a preset timing relation; or, determining the time domain subframe position or the candidate time domain subframe position reported by the power headroom through a field which is carried in a physical layer DCI signaling and is used for indicating the time domain subframe position or the candidate time domain subframe position reported by the power headroom; triggering the power headroom report through a first physical layer DCI signaling, indicating a time domain subframe position or a candidate time domain subframe position of the power headroom report through a second physical layer DCI signaling, and determining the time domain subframe position or the candidate time domain subframe position of the power headroom report; indicating the time domain subframe position or the candidate time domain subframe position of the power headroom report through a first physical layer DCI signaling, triggering the time domain subframe position or the candidate time domain subframe position of the power headroom report to take effect through a second physical layer DCI signaling, and/or triggering the power headroom report to be carried out on the time domain subframe position or the candidate time domain subframe position for one time, or carrying out the power headroom report for multiple times; and indicating the size of a time window for reporting the power headroom, the offset in the time window and the interval parameter in the time window through a physical layer DCI signaling to determine the position of the time domain subframe reported by the power headroom or the position of a candidate time domain subframe, wherein the starting point of the time window reported by the power headroom is notified through the physical layer DCI signaling or determined according to a preset timing relationship.

Optionally, the predetermined timing relationship comprises: n + k, where n is a subframe for transmitting a physical layer DCI signaling, and k is a positive integer greater than or equal to 1 or greater than or equal to 4.

Optionally, determining the time domain position reported by the power headroom through a high layer RRC signaling includes: determining the time domain position reported by the power headroom by at least one of the following parameters: reporting the time window length of the power allowance; reporting the initial position of a time window of the power allowance; reporting the offset in the time window of the power allowance; reporting a time domain resource interval in a time window of the power allowance; reporting the number of time domain resources in a time window of the power allowance; reporting a time domain resource pattern of the power headroom; reporting the period and the offset of the power headroom; wherein the parameter is configured by RRC signaling.

Optionally, determining the time domain position reported by the power headroom by a mode agreed in advance by the base station and the UE includes: after downlink transmission burst, the scheduled first PUSCH subframe of the UE; after the burst is transmitted in a downlink mode, at least one subframe corresponding to a subframe with an even or odd index number in a plurality of scheduled continuous PUSCH subframes of the UE; one or more continuous PUSCH subframes scheduled by the UE after the downlink transmission burst; one or more continuous PUSCH subframes in which the UE is scheduled within an uplink transmission burst; in uplink transmission burst, a first PUSCH subframe scheduled by the UE; in the uplink transmission burst, at least one subframe corresponding to a subframe index number of an even or odd number in a plurality of scheduled continuous PUSCH subframes of the UE; a scheduled PUSCH subframe of the UE.

Optionally, the time domain position reported by the power headroom includes: the time domain location is located in a licensed carrier, or an unlicensed carrier.

Optionally, the time domain position of the reported power headroom in the time window is continuous in the time domain, or discrete; or, the time domain resource for reporting the power headroom within the time window for reporting the power headroom is determined by at least one of the following parameters: reporting the time domain offset and/or the interval and/or the time domain resource size and/or the number of the time domain resources in the time window of the power headroom.

Optionally, after determining the time-frequency location for reporting the power headroom, the method further includes: performing a listen before talk, LBT, mechanism prior to the determined time domain location; and reporting the power headroom at the time domain position under the condition that the LBT mechanism is successfully executed.

Optionally, the LBT mechanism corresponds to a predetermined LBT priority level.

Optionally, the predetermined signal or the predetermined channel comprises one of: a Physical Uplink Shared Channel (PUSCH); sounding reference signals and a physical uplink shared channel SRS with PUSCH; sounding reference signals and a physical uplink shared channel SRS without PUSCH; and a Physical Uplink Control Channel (PUCCH).

Optionally, the determining a power headroom of the UE for transmitting the predetermined signal on the predetermined subframe includes: when the predetermined signal is that the SRS is not transmitted with the PUSCH, the method for calculating the power headroom comprises the following steps: determining the power of the SRS not transmitted by the UE on the predetermined subframe and the power of the PUSCH by modifying a power calculation formula of the SRS and the PUSCH transmitted by the UE on the predetermined subframe; determining the power headroom of the UE for transmitting the SRS without the PUSCH on the predetermined subframe according to the determined transmission power of the UE for transmitting the SRS without the PUSCH on the predetermined subframe; the power calculation formula for the UE to send the SRS and the PUSCH on the predetermined subframe is as follows: p _SRS,c (i)＝min{P _CMAX,c (i),P _{SRS_OFFSET,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i)}。

Optionally, modifying a formula of transmission power for the UE to transmit the SRS and PUSCH on a predetermined subframe, including: and modifying the value range of m: from [0,1]To [0,2]Wherein, newly introduced m =2 represents SRS without PUSCH; and modifying the value range of j: from [0,2]To [0,3]Wherein, newly introduced j =3 represents SRS without PUSCH, or j =1 represents SRS without PUSCH; given parameter P _{SRS_OFFSET,c} (m) new meanings: the power offset of the SRS without PUSCH transmitted at this time and the power offset of the SRS without PUSCH transmitted at the last time are shown; or, transmitting power offset of the SRS without PUSCH relative to the PUSCH transmitted last time; or, transmitting the SRS without PUSCH with respect to a power offset of a PUSCH transmitted within a period of time; or, the power offset of the transmitted SRS with PUSCH relative to the transmitted SRS with PUSCH; impartation of P _{O_PUSCH,c} (j) New meaning, i.e. assigning the parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) New meaning of P _{O_NOMINAL_PUSCH,c} (j) Indicating normal SRS and/or PUSCH receiving or demodulating, and the expected SRS and/or PUSCH transmitting power level of the base station side; p is _{O_UE_PUSCH,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_PUSCH,c} (j) Power bias of (d); wherein, P _{O_PUSCH,c} (j) Including a parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) (ii) a Modifying the parameter alpha _c (j) And configuring a parameter alpha _c (j) Value set of (2): i.e., j ranges from [0,2]To [0,3]And when j =3, α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1}.

Optionally, the method further comprises: introducing a new parameter R on the basis of a power calculation formula of an SRS and a PUSCH _c (i) (ii) a Wherein the parameter R _c (i) When the value is not 0dB, the UE transmits the SRS on the ith subframe of the cell c without the PUSCH condition; the parameter R _c (i) And when the value is 0dB, the UE transmits the SRS and the PUSCH on the ith subframe of the cell c.

Optionally, the method further comprises: introducing a new parameter q on the basis of a power calculation formula of an SRS and a PUSCH, wherein q =0 represents the SRS and PUSCH condition, and q =1 represents the SRS and PUSCH condition; alternatively, q =1 indicates the case of SRS and PUSCH, and q =0 indicates the case of SRS and PUSCH being absent.

Optionally, the method further comprises: based on the power calculation formula of SRS and PUSCH, a new parameter P is introduced _c (i) In place of the parameter P _{SRS_OFFSET,c} (m); wherein, the P is _c (i) Indicating that the UE does not transmit the power of the SRS and the PUSCH in the ith subframe of the cell c relative to the power offset of the power for transmitting the PUSCH and/or the SRS and the PUSCH, or indicating a power adjustment amount; by introducing new parameters P _{O_SRS,c} (j) Replacement parameter P _{O_PUSCH,c} (j) (ii) a Wherein, the P _{O_SRS,c} (j) Including P _{O_NOMINAL_SRS,c} (j) And P _{O_UE_SRS,c} (j)；P _{O_NOMINAL_SRS,c} (j) Indicating the normal SRS and/or PUSCH reception or demodulation, the expected SRS and/or PUSCH transmission power level, P, at the base station side _{O_UE_SRS,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_SRS,c} (j) Is applied to the power bias.

Optionally, the method further comprises: by introducing a new parameter f' _c (i) Replacement parameter f _c (i) Wherein f 'is' _c (i) Transmitting the power adjustment quantity under the condition that the SRS is not transmitted with the PUSCH in the ith subframe of the cell c; by introducing a new parameter P' _CMAX,c (i) Replacement parameter P _CMAX,c (i) Wherein, P' _CMAX,c (i)＝P _CMAX,c (i) A first adjustment amount, the first adjustment amount being a real number.

Alternatively, f _c (i) The method comprises the steps of introducing a field for indicating TPC command for no-Scheduled PUSCH in physical layer DCI signaling to obtain the physical layer DCI signaling.

Optionally, in accordance with the determined transmission power of the UE for transmitting the SRS on the predetermined subframe without PUSCH, determining the power headroom of the UE for transmitting the SRS on the predetermined subframe without PUSCH includes: PH value _c (i)＝P _CMAX,c (i) -P, or PH _c (i)＝P' _CMAX,c (i) -P; wherein the pH is _c (i) And P is a second term in braces in the SRS sending power calculation formula, and is a power margin for the UE to transmit the predetermined signal on the ith subframe of the cell c.

Optionally, the parameters for determining the transmission power of the UE for transmitting the SRS on the predetermined subframe and not for transmitting the PUSCH are obtained by at least one of: controlling a static or semi-static configuration mode of RRC signaling through a high-level radio link; the method comprises the following steps of signaling Downlink Control Information (DCI) by a physical layer.

Optionally, the physical layer DCI signaling includes at least one of: UE (user equipment) is provided with a DCI signaling, and DCI format 0/4 is adopted; common DCI signaling, DCI format 1C is adopted; group downlink control information Group DCI signaling adopts DCI format 3/3A; downlink control information DL DCI signaling adopts DCI format 1A/2B/2C; new DCI signaling.

According to another embodiment of the present invention, there is provided a power control apparatus including: a first determining module, configured to determine a power headroom of a predetermined signal or a predetermined channel transmitted by a user equipment UE on a predetermined subframe on an unlicensed carrier; and the reporting module is used for reporting the power headroom on the preset physical uplink resource according to a preset reporting mode.

Optionally, the predetermined manner for reporting the power headroom includes at least one of the following: reporting the power headroom periodically; reporting the power headroom by event triggering; triggering and reporting the power allowance by a physical layer Downlink Control Information (DCI) signaling; reporting the power headroom in an implicit mode; reporting the power margin in a mode of mixing periodicity and event trigger; reporting the power margin in a mode of mixing a periodic mode and an implicit mode; and reporting the power margin in a mode of mixing the periodical DCI signaling and the physical layer DCI signaling.

Optionally, reporting the power headroom in an event-triggered manner includes at least one of: and triggering and reporting the power allowance under the condition that the change of the path loss reaches a preset threshold value within preset time.

Optionally, the reporting the power headroom in an implicit manner includes at least one of: triggering and reporting the power headroom by the end time of downlink transmission burst; triggering and reporting the power allowance through the starting moment of uplink transmission burst; and triggering and reporting the power allowance when the Physical Uplink Shared Channel (PUSCH) of the UE exists in the uplink transmission burst.

Optionally, reporting the power headroom in a manner of mixing periodicity and event trigger includes: reporting the period of the power headroom, wherein the period of the reporting of the power headroom takes effect only under the condition that the reporting of the power headroom is triggered by an event; and the event triggers the power headroom to be reported once or for multiple times at a periodic point.

Optionally, the method further comprises: a second determining module, configured to determine a time domain position for reporting the power headroom before reporting the power headroom on the predetermined physical uplink resource.

Optionally, the determining the time domain position reported by the power headroom includes: a DCI signaling configuration mode is carried out through physical layer downlink control information; controlling the RRC signaling configuration mode through a high-level radio link; the base station and the UE have a predetermined mode.

Optionally, determining, by a physical layer DCI signaling, a time domain position for reporting the power headroom includes one of: triggering a physical layer DCI signaling reported by the power headroom to be sent on a subframe n, and determining a time domain subframe position reported by the power headroom or a candidate time domain subframe position according to a preset timing relationship; or, determining the time domain subframe position or the candidate time domain subframe position reported by the power headroom through a field which is carried in a physical layer DCI signaling and is used for indicating the time domain subframe position or the candidate time domain subframe position reported by the power headroom; triggering the power headroom report through a first physical layer DCI signaling, indicating a time domain subframe position or a candidate time domain subframe position of the power headroom report through a second physical layer DCI signaling, and determining the time domain subframe position or the candidate time domain subframe position of the power headroom report; indicating the time domain subframe position or the candidate time domain subframe position of the power headroom report through a first physical layer DCI signaling, triggering the time domain subframe position or the candidate time domain subframe position of the power headroom report to take effect through a second physical layer DCI signaling, and/or triggering the power headroom report to be carried out on the time domain subframe position or the candidate time domain subframe position for one time, or carrying out the power headroom report for multiple times; and indicating the size of a time window for reporting the power headroom or the position of a candidate time domain subframe by a physical layer DCI signaling, the offset in the time window and an interval parameter in the time window to determine the position of the time domain subframe for reporting the power headroom or the position of the candidate time domain subframe, wherein the starting point of the time window for reporting the power headroom is notified by the physical layer DCI signaling or determined according to a preset timing relationship.

Optionally, determining the time domain position for reporting the power headroom through a higher layer RRC signaling includes: determining the time domain position reported by the power headroom by at least one of the following parameters: reporting the time window length of the power allowance; reporting the initial position of the time window of the power margin; reporting the offset in the time window of the power allowance; reporting a time domain resource interval in a time window of the power allowance; reporting the number of time domain resources in a time window of the power allowance; reporting a time domain resource pattern of the power headroom; reporting the period and the offset of the power headroom; wherein the parameter is configured by RRC signaling.

Optionally, determining the time domain position reported by the power headroom by a mode agreed in advance by the base station and the UE includes: after the downlink transmission burst, the UE is scheduled to obtain a first PUSCH subframe; after the burst is transmitted in a downlink mode, at least one subframe corresponding to a subframe with an even or odd index number in a plurality of scheduled continuous PUSCH subframes of the UE; one or more continuous PUSCH subframes scheduled by the UE after the downlink transmission burst; one or more continuous PUSCH subframes in which the UE is scheduled within an uplink transmission burst; in uplink transmission burst, the first PUSCH subframe scheduled by the UE; in the uplink transmission burst, at least one of subframes corresponding to subframes with even or odd index numbers in a plurality of scheduled continuous PUSCH subframes of the UE; a scheduled PUSCH subframe of the UE.

Optionally, the time domain position reported by the power headroom includes: the time domain location is located on a licensed carrier, or alternatively, an unlicensed carrier.

Optionally, the time domain position of the reported power headroom in the time window is continuous in the time domain, or discrete; or, the time domain resource for reporting the power headroom in the time window for reporting the power headroom is determined by at least one of the following parameters: reporting the time domain offset and/or the interval and/or the time domain resource size and/or the number of the time domain resources in the time window of the power headroom.

Optionally, the method further comprises: an execution module, configured to execute a Listen Before Talk (LBT) mechanism before the determined time domain position after determining the time-frequency position for reporting the power headroom; the reporting module is configured to report the power headroom at the time domain position under a condition that the LBT mechanism is successfully executed.

Optionally, the first determining module includes: a first determining unit, configured to determine, when the predetermined signal is SRS and not transmitted with PUSCH, the UE by modifying a power calculation formula for transmitting, by the UE, the sounding reference signal and the SRS and PUSCH on the predetermined subframeTransmitting power of the SRS without PUSCH on the predetermined subframe; a second determining unit, configured to determine, according to the determined transmission power of the UE for transmitting the SRS on the predetermined subframe without using a PUSCH, the power headroom of the UE for transmitting the SRS on the predetermined subframe without using a PUSCH; wherein, the power calculation formula of the UE for sending the sounding reference signal and the SRS and PUSCH on the predetermined subframe is as follows: p _SRS,c (i)＝min{P _CMAX,c (i),P _{SRS_OFFSET,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i)}。

Optionally, the first determining unit includes a first modifying subunit, configured to modify a formula of transmission power for the UE to transmit the SRS and PUSCH on a predetermined subframe, and includes: and modifying the value range of m: from [0,1]To [0,2]Wherein, newly introduced m =2 represents SRS without PUSCH; and modifying the value range of j: from [0,2]To [0,3]Wherein, newly introduced j =3 represents SRS without PUSCH, or j =1 represents SRS without PUSCH; given parameter P _{SRS_OFFSET,c} (m) new meanings: representing the power offset of the SRS without PUSCH transmitted this time and the SRS without PUSCH transmitted last time; or, transmitting power offset of the SRS without PUSCH relative to the PUSCH transmitted last time; or, transmitting the SRS without PUSCH with respect to a power offset of a PUSCH transmitted within a period of time; or, transmitting power offset of the SRS with PUSCH relative to the SRS with PUSCH; impartation of P _{O_PUSCH,c} (j) New meaning, i.e. assigning the parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) New meaning of P _{O_NOMINAL_PUSCH,c} (j) Indicating normal SRS and/or PUSCH receiving or demodulating, and the expected SRS and/or PUSCH transmitting power level of the base station side; p _{O_UE_PUSCH,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_PUSCH,c} (j) Power bias of (d); wherein, P _{O_PUSCH,c} (j) Including a parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) (ii) a Modifying the parameter alpha _c (j) And configuring a parameter alpha _c (j) Value set of (2): i.e., j ranges from [0,2]To [0,3]And when j =At the time of 3, α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1}.

Optionally, the first determining unit further includes a second modifying subunit, configured to modify a formula of transmission power for the UE to transmit the SRS and PUSCH on a predetermined subframe, where the modifying includes: introducing a new parameter R on the basis of a power calculation formula of an SRS and a PUSCH _c (i) (ii) a Wherein the parameter R _c (i) When the value is not 0dB, the UE transmits the SRS on the ith subframe of the cell c without the PUSCH condition; the parameter R _c (i) And when the value is 0dB, the UE transmits the SRS and the PUSCH on the ith subframe of the cell c.

Optionally, the first determining unit further includes a third modifying subunit, configured to modify a formula of transmission power for the UE to transmit the SRS and PUSCH on a predetermined subframe, where the modifying includes: introducing a new parameter q on the basis of a power calculation formula of an SRS and a PUSCH, wherein q =0 represents the SRS and PUSCH condition, and q =1 represents the SRS and PUSCH condition; alternatively, q =1 indicates the case of SRS and PUSCH, and q =0 indicates the case of SRS and PUSCH being absent.

Optionally, the first determining unit further includes a fourth modifying subunit, configured to modify a formula of transmission power for the UE to transmit the SRS and PUSCH on a predetermined subframe, where the modifying includes: based on the power calculation formula of SRS and PUSCH, by introducing a new parameter P _c (i) In place of parameter P _{SRS_OFFSET,c} (m); wherein, the P _c (i) Indicating that the UE does not transmit the SRS and the PUSCH in the ith subframe of the cell c, and the power offset of the power for transmitting the PUSCH and/or the SRS and the PUSCH is/are relative to the power for transmitting the PUSCH and/or the power for transmitting the SRS and the PUSCH, or indicating a power adjustment amount; by introducing new parameters P _{O_SRS,c} (j) Replacement parameter P _{O_PUSCH,c} (j) (ii) a Wherein, the P _{O_SRS,c} (j) Including P _{O_NOMINAL_SRS,c} (j) And P _{O_UE_SRS,c} (j)；P _{O_NOMINAL_SRS,c} (j) Indicating the normal SRS and/or PUSCH reception or demodulation, the expected SRS and/or PUSCH transmission power level, P, at the base station side _{O_UE_SRS,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_SRS,c} (j) Power bias of (3).

Optionally, the first determining unit further includes a fifth modifying subunit, configured to modify a formula of transmission power for the UE to transmit the SRS and PUSCH on a predetermined subframe, where the modifying includes: by introducing a new parameter f' _c (i) Replacement parameter f _c (i) Wherein, f' _c (i) Transmitting the power adjustment amount of the situation that the SRS is not transmitted with the PUSCH in the ith subframe of the cell c; by introducing a new parameter P' _CMAX,c (i) Replacement parameter P _CMAX,c (i) Wherein, P' _CMAX,c (i)＝P _CMAX,c (i) A first adjustment amount, the first adjustment amount being a real number.

Optionally, the second determining unit is further configured to determine the power headroom of the UE for transmitting the SRS and PUSCH on the predetermined subframe by the following formula: PH value _c (i)＝P _CMAX,c (i) -P, or PH _c (i)＝P' _CMAX,c (i) -P; wherein the pH is _c (i) And P is a second term in braces in the SRS sending power calculation formula, and is a power margin for the UE to transmit the predetermined signal on the ith subframe of the cell c.

Optionally, the first determining unit further includes an obtaining subunit, configured to obtain a parameter of transmit power used for determining that the UE transmits the SRS on the predetermined subframe and does not transmit the PUSCH by at least one of: controlling a static or semi-static configuration mode of RRC signaling through a high-level radio link; the method comprises the following steps of signaling Downlink Control Information (DCI) by a physical layer.

According to a further embodiment of the present invention, there is provided a user equipment UE including the apparatus in any of the above.

According to still another embodiment of the present invention, there is also provided a storage medium. The storage medium is configured to store program code for performing the steps of: determining a power headroom of a predetermined signal or a predetermined channel transmitted by a User Equipment (UE) on a predetermined subframe on an unlicensed carrier; and reporting the power headroom on a preset physical uplink resource according to a preset reporting mode.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the predetermined mode for reporting the power headroom comprises at least one of the following modes: reporting the power headroom periodically; reporting the power headroom by event triggering; triggering and reporting the power allowance by a physical layer Downlink Control Information (DCI) signaling; reporting the power headroom in an implicit mode; reporting the power margin in a mode of mixing periodicity and event trigger; reporting the power margin in a mode of mixing a periodic mode and an implicit mode; and reporting the power margin in a mode of mixing the periodical DCI signaling and the physical layer DCI signaling.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the reporting period of the power headroom includes at least one of the following: 1ms,2ms,3ms,4ms,5ms,6ms,7ms,8ms,9ms,10ms,20ms,50ms,100ms,200ms,500ms,1000ms.

Optionally, the storage medium is further arranged to store program code for performing the steps of: reporting the power headroom in an event-triggered manner includes at least one of: and triggering and reporting the power allowance under the condition that the change of the path loss reaches a preset threshold value within preset time.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the dynamically triggering the power headroom report through the physical layer DCI signaling includes at least one of the following: a field for indicating triggering of power headroom reporting is carried in a physical layer DCI signaling; determining a timing relation value of a time domain subframe or a candidate time domain subframe for reporting the power margin; a field for indicating a time domain subframe or a candidate time domain subframe for reporting the power headroom; and triggering the power headroom to carry out one-time reporting or multiple times of reporting by the DCI signaling of the physical layer.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the reporting of the power headroom in an implicit manner includes at least one of: triggering and reporting the power headroom by the end time of downlink transmission burst; triggering and reporting the power headroom through the uplink transmission burst starting moment; and triggering and reporting the power allowance when the Physical Uplink Shared Channel (PUSCH) of the UE exists in the uplink transmission burst.

Optionally, the storage medium is further arranged to store program code for performing the steps of: reporting the power headroom in a mode of mixing periodicity and event trigger, wherein the reporting comprises: reporting the period of the power headroom, wherein the period of the reporting of the power headroom takes effect only under the condition that the reporting of the power headroom is triggered by an event; and the event triggers the power headroom to be reported once or for multiple times at a periodic point.

Optionally, the storage medium is further arranged to store program code for performing the steps of: reporting the power headroom in a mode of mixing a periodic mode and an implicit mode, wherein the reporting mode comprises the following steps: reporting the period of the power headroom, wherein the period is only after the uplink transmission burst is finished, or the uplink transmission burst is started, or the uplink transmission burst takes effect; and the uplink transmission burst comprises one or more Physical Uplink Shared Channels (PUSCHs) of the UE.

Optionally, the storage medium is further arranged to store program code for performing the steps of: reporting the power headroom in a mode of mixing periodicity and physical layer DCI signaling, wherein the method comprises the following steps: and the period of reporting the power headroom is triggered by a physical layer DCI signaling and then takes effect after the reporting of the power headroom is carried out.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the predetermined physical uplink resource includes one of: a Physical Uplink Shared Channel (PUSCH); and a Physical Uplink Control Channel (PUCCH).

Optionally, the storage medium is further arranged to store program code for performing the steps of: the predetermined physical uplink resource is located in an unlicensed carrier or an authorized carrier.

Optionally, the storage medium is further arranged to store program code for performing the steps of: before reporting the power headroom on the predetermined physical uplink resource, the method further includes: and determining a time domain position for reporting the power headroom.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the method for determining the time domain position reported by the power headroom includes: a DCI signaling configuration mode is carried out through physical layer downlink control information; controlling the RRC signaling configuration mode through a high-level radio link; the base station and the UE have a predetermined mode.

Optionally, the storage medium is further arranged to store program code for performing the steps of: determining the time domain position reported by the power headroom through a physical layer DCI signaling, wherein the time domain position comprises one of the following positions: triggering a physical layer DCI signaling reported by the power headroom to be sent on a subframe n, and determining a time domain subframe position reported by the power headroom or a candidate time domain subframe position according to a preset timing relation; or, determining the time domain subframe position or the candidate time domain subframe position reported by the power headroom through a field which is carried in a physical layer DCI signaling and is used for indicating the time domain subframe position or the candidate time domain subframe position reported by the power headroom; triggering the power headroom report through a first physical layer DCI signaling, indicating a time domain subframe position or a candidate time domain subframe position of the power headroom report through a second physical layer DCI signaling, and determining the time domain subframe position or the candidate time domain subframe position of the power headroom report; indicating the time domain subframe position or the candidate time domain subframe position of the power headroom report through a first physical layer DCI signaling, triggering the time domain subframe position or the candidate time domain subframe position of the power headroom report to be effective through a second physical layer DCI signaling, and/or triggering the power headroom report to be carried out on the time domain subframe position or the candidate time domain subframe position for one time, or carrying out the power headroom report for multiple times; and indicating the size of a time window for reporting the power headroom, the offset in the time window and the interval parameter in the time window through a physical layer DCI signaling to determine the position of the time domain subframe reported by the power headroom or the position of a candidate time domain subframe, wherein the starting point of the time window reported by the power headroom is notified through the physical layer DCI signaling or determined according to a preset timing relationship.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the predetermined timing relationship includes: n + k, where n is a subframe for transmitting a physical layer DCI signaling, and k is a positive integer greater than or equal to 1 or greater than or equal to 4.

Optionally, the storage medium is further arranged to store program code for performing the steps of: determining the time domain position reported by the power headroom through a high-level RRC signaling, comprising: determining a time domain position reported by the power headroom through at least one of the following parameters: reporting the time window length of the power margin; reporting the initial position of the time window of the power margin; reporting the offset in the time window of the power allowance; reporting a time domain resource interval in a time window of the power allowance; reporting the number of time domain resources in a time window of the power allowance; reporting a time domain resource pattern of the power headroom; reporting the period and the offset of the power headroom; wherein the parameter is configured by RRC signaling.

Optionally, the storage medium is further arranged to store program code for performing the steps of: determining the time domain position reported by the power headroom by a mode appointed by the base station and the UE in advance, wherein the method comprises the following steps: after downlink transmission burst, the scheduled first PUSCH subframe of the UE; after the burst is transmitted in a downlink mode, at least one subframe corresponding to a subframe with an even or odd index number in a plurality of scheduled continuous PUSCH subframes of the UE; one or more continuous PUSCH subframes scheduled by the UE after the downlink transmission burst; one or more continuous PUSCH subframes in which the UE is scheduled within an uplink transmission burst; in uplink transmission burst, the first PUSCH subframe scheduled by the UE; in the uplink transmission burst, at least one of subframes corresponding to subframes with even or odd index numbers in a plurality of scheduled continuous PUSCH subframes of the UE; a scheduled PUSCH subframe of the UE.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the time domain position reported by the power headroom includes: the time domain location is located in a licensed carrier, or an unlicensed carrier.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the time domain position of the reported power margin in the time window is continuous in the time domain or discrete in the time domain; or, the time domain resource for reporting the power headroom within the time window for reporting the power headroom is determined by at least one of the following parameters: reporting the time domain offset and/or the interval and/or the time domain resource size and/or the number of the time domain resources in the time window of the power headroom.

Optionally, the storage medium is further arranged to store program code for performing the steps of: after determining the time-frequency position for reporting the power headroom, the method further includes: performing a listen before talk, LBT, mechanism prior to the determined time domain location; and reporting the power headroom at the time domain position under the condition that the LBT mechanism is successfully executed.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the LBT mechanism corresponds to a predetermined LBT priority level.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the predetermined signal or the predetermined channel comprises one of: a Physical Uplink Shared Channel (PUSCH); sounding reference signals and a physical uplink shared channel SRS with PUSCH; sounding reference signals and a physical uplink shared channel SRS without PUSCH; and a Physical Uplink Control Channel (PUCCH).

Optionally, the storage medium is further arranged to store program code for performing the steps of: determining a power headroom for the UE to transmit the predetermined signal on the predetermined subframe, including: when the predetermined signal is that the SRS is not transmitted with the PUSCH, the method for calculating the power headroom comprises the following steps: determining the power of the UE for transmitting the SRS not to the PUSCH on a preset subframe by modifying a power calculation formula of the UE for transmitting the SRS and the PUSCH on the preset subframe; determining the SRS not to PUSCH transmission power according to the determined UE transmitting the SRS on the predetermined subframeThe UE transmitting the power headroom of the SRS and PUSCH on the predetermined subframe; the power calculation formula for the UE to send the SRS and the PUSCH on the predetermined subframe is as follows: p is _SRS,c (i)＝min{P _CMAX,c (i),P _{SRS_OFFSET,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i)}。

Optionally, the storage medium is further arranged to store program code for performing the steps of: modifying a formula of transmission power of the UE for transmitting the SRS and PUSCH on a predetermined subframe, including: and modifying the value range of m: from [0,1]To [0,2]Wherein, newly introduced m =2 represents SRS without PUSCH; and modifying the value range of j: from [0,2]To [0,3]Wherein, newly introduced j =3 represents SRS without PUSCH, or j =1 represents SRS without PUSCH; given parameter P _{SRS_OFFSET,c} (m) new meanings: representing the power offset of the SRS without PUSCH transmitted this time and the SRS without PUSCH transmitted last time; or, transmitting power offset of the SRS without PUSCH relative to the PUSCH transmitted last time; or, transmitting the SRS without PUSCH with respect to a power offset of a PUSCH transmitted within a period of time; or, the power offset of the transmitted SRS with PUSCH relative to the transmitted SRS with PUSCH; impartation of P _{O_PUSCH,c} (j) New meaning, i.e. assigning the parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) New meaning of P _{O_NOMINAL_PUSCH,c} (j) Indicating normal SRS and/or PUSCH receiving or demodulating, and the expected SRS and/or PUSCH transmitting power level of the base station side; p is _{O_UE_PUSCH,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_PUSCH,c} (j) Power bias of (d); wherein, P _{O_PUSCH,c} (j) Including a parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) (ii) a Modifying the parameter alpha _c (j) And configuring a parameter alpha _c (j) Value set of (2): i.e., j ranges from [0,2]To [0,3]And when j =3, α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1}.

Optionally, the storage medium is further arranged to store program code for performing the steps of: further comprising:introducing a new parameter R on the basis of a power calculation formula of an SRS and a PUSCH _c (i) (ii) a Wherein the parameter R _c (i) When the value is not 0dB, the UE transmits the SRS on the ith subframe of the cell c without the PUSCH condition; the parameter R _c (i) And when the value is 0dB, the UE transmits the SRS and the PUSCH on the ith subframe of the cell c.

Optionally, the storage medium is further arranged to store program code for performing the steps of: further comprising: introducing a new parameter q on the basis of a power calculation formula of an SRS and a PUSCH, wherein q =0 represents the SRS and PUSCH condition, and q =1 represents the SRS and PUSCH condition; alternatively, q =1 indicates the case of SRS and PUSCH, and q =0 indicates the case of SRS and PUSCH being absent.

Optionally, the storage medium is further arranged to store program code for performing the steps of: further comprising: based on the power calculation formula of SRS and PUSCH, a new parameter P is introduced _c (i) In place of parameter P _{SRS_OFFSET,c} (m); wherein, the P _c (i) Indicating that the UE does not transmit the power of the SRS and the PUSCH in the ith subframe of the cell c relative to the power offset of the power for transmitting the PUSCH and/or the SRS and the PUSCH, or indicating a power adjustment amount; by introducing new parameters P _{O_SRS,c} (j) Replacement parameter P _{O_PUSCH,c} (j) (ii) a Wherein, the P _{O_SRS,c} (j) Including P _{O_NOMINAL_SRS,c} (j) And P _{O_UE_SRS,c} (j)；P _{O_NOMINAL_SRS,c} (j) Indicating the normal SRS and/or PUSCH reception or demodulation, the desired SRS and/or PUSCH transmission power level, P, at the base station side _{O_UE_SRS,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_SRS,c} (j) Power bias of (3).

Optionally, the storage medium is further arranged to store program code for performing the steps of: further comprising: by introducing a new parameter f' _c (i) Replacement parameter f _c (i) Wherein, f' _c (i) Transmitting the power adjustment amount of the situation that the SRS is not transmitted with the PUSCH in the ith subframe of the cell c; by introducing a new parameter P' _CMAX,c (i) Replacement parameter P _CMAX,c (i) Wherein, P' _CMAX,c (i)＝P _CMAX,c (i) A first adjustment amount, the first adjustment amount being a real number.

Optionally, the storage medium is further arranged to store program code for performing the steps of: f. of _c (i) The method comprises the steps of introducing a field for indicating TPC command for no-Scheduled PUSCH in physical layer DCI signaling to obtain the physical layer DCI signaling.

Optionally, the storage medium is further arranged to store program code for performing the steps of: in accordance with the determined transmission power of the UE for transmitting the SRS without PUSCH on the predetermined subframe, determining the power headroom of the UE for transmitting the SRS without PUSCH on the predetermined subframe comprises: PH value _c (i)＝P _CMAX,c (i) -P, or PH _c (i)＝P' _CMAX,c (i) -P; wherein the pH is _c (i) And P is a second item in a brace in the SRS sending power calculation formula, and is used for transmitting the power margin of the predetermined signal on the ith subframe of the cell c by the UE.

Optionally, the storage medium is further arranged to store program code for performing the steps of: obtaining parameters for the determined transmission power of the UE for transmitting the SRS without PUSCH on the predetermined subframe by at least one of: controlling a static or semi-static configuration mode of RRC signaling through a high-level radio link; the method is realized by a DCI signaling mode.

Optionally, the storage medium is further arranged to store program code for performing the steps of: the physical layer DCI signaling comprises at least one of: UE (user equipment) is specially provided with DCI signaling, and DCI format0/4 is adopted; common DCI signaling, DCI format 1C is adopted; group downlink control information Group DCI signaling adopts DCI format 3/3A; downlink control information DL DCI signaling adopts DCI format 1A/2B/2C; new DCI signaling.

By the invention, the problem that accurate channel state information cannot be obtained from the UE side in the related technology is effectively solved by transmitting the preset signal or the report of the power margin of the preset channel on the preset subframe on the unauthorized carrier, and the effect of determining the accurate channel state information according to the obtained power margin is achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a block diagram of a hardware structure of a user equipment of a power control method according to an embodiment of the present invention;

FIG. 2 is a flow chart of a power control method according to an embodiment of the present invention;

fig. 3 is a block diagram of a power control apparatus according to an embodiment of the present invention;

fig. 4 is a block diagram of a preferred structure of a power control apparatus according to an embodiment of the present invention;

FIG. 5 is a block diagram of a preferred configuration of a power control apparatus according to an embodiment of the present invention;

fig. 6 is a block diagram of a preferred structure of the first determination module 32 in the power control apparatus according to the embodiment of the present invention;

fig. 7 is a block diagram one of a preferred structure of the first determining unit 62 in the first determining module 32 in the power control apparatus according to the embodiment of the present invention;

Fig. 8 is a block diagram of a preferred structure of the first determining unit 62 in the first determining module 32 in the power control apparatus according to the embodiment of the present invention;

fig. 9 is a block diagram of a preferred configuration of the first determining unit 62 in the first determining module 32 in the power control apparatus according to the embodiment of the present invention;

fig. 10 is a block diagram of a preferred configuration of the first determining unit 62 in the first determining module 32 in the power control apparatus according to the embodiment of the present invention;

fig. 11 is a block diagram of a preferred configuration of the first determining unit 62 in the first determining module 32 in the power control apparatus according to the embodiment of the present invention;

fig. 12 is a block diagram six of a preferred configuration of the first determining unit 62 in the first determining module 32 in the power control apparatus according to the embodiment of the present invention;

fig. 13 is a block diagram of a user equipment UE 10 according to an embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Method embodiment

The method provided by the first embodiment of the present application may be executed in a user equipment, a computer terminal, or a similar computing device. Taking the operation on the ue as an example, fig. 1 is a hardware structure block diagram of the ue according to a power control method of the embodiment of the present invention. As shown in fig. 1, user equipment 10 may include one or more (only one shown) processors 102 (processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA, etc.), memory 104 for storing data, and transmission device 106 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration and is not intended to limit the structure of the electronic device. For example, user device 10 may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.

The memory 104 may be used to store software programs and modules of application software, such as program instructions/modules corresponding to the power control method in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, so as to implement the above-mentioned method. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 104 may further include memory located remotely from processor 102, which may be connected to user device 10 over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the user equipment 10. In one example, the transmission device 106 includes a Network adapter (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used to communicate with the internet via wireless.

Based on the problem that the channel state information cannot be obtained from the UE side in the related art, in addition, the downlink CAI also has the characteristics of few measurement opportunities, large time delay between measurement and reporting, and the like, so that it becomes a necessary option for the LAA uplink to transmit a predetermined signal (for example, SRS) for obtaining the channel state information. Taking SRS as an example, SRS transmission has been studied and discussed in Rel-14eLAA at present.

To date, the following conclusions have been reached in eLAA regarding SRS:

and supporting transmission of an aperiodic sounding reference signal and a Physical Uplink Shared Channel (SRS with PUSCH for short).

And supporting aperiodic SRS without PUSCH transmission.

Therefore, on unlicensed carriers, supporting SRS without PUSCH has become a mandatory option. In this context, in the related LTE technology, the SRS power control depends on the PUSCH power control, and the SRS closed-loop power control switch and the PUSCH closed-loop power control are the same. Based on this, power control for the "SRS without PUSCH" transmission scenario is a problem to be solved. In addition, in the related LTE technology, PHR reporting also depends on PUSCH. Therefore, how to solve the PHR reporting in the "SRS without PUSCH" transmission scenario is a problem to be solved.

Based on the above problems in the related art, in the present embodiment, a power control method operating on a mobile device is provided, and fig. 2 is a flowchart of the power control method according to an embodiment of the present invention, as shown in fig. 2, the flowchart includes the following steps:

step S202, determining that the UE transmits a predetermined signal or the power margin of a predetermined channel on a predetermined subframe on an unlicensed carrier;

step S204, reporting the power allowance on the predetermined physical uplink resource according to the predetermined reporting mode.

Through the steps, the problem that accurate channel state information cannot be obtained from the UE side in the related technology is effectively solved by transmitting the preset signal or the report of the power headroom of the preset channel on the preset subframe on the unauthorized carrier, and the effect of determining the accurate channel state information according to the obtained power headroom is achieved.

Optionally, the executing subject of the above steps may be a user equipment, etc., but is not limited thereto.

In addition, the method proposed in the embodiment of the present invention is applicable to a single-carrier or multi-carrier LAA scene, a Dual Connectivity (Dual Connectivity) or a standard one scene, but is not limited to the above scenarios.

Optionally, the manner of reporting the power headroom may be various, and for example, may include at least one of the following: reporting the power headroom periodically; reporting the power margin in an event triggering manner; triggering and reporting the power allowance by a physical layer Downlink Control Information (DCI) signaling; reporting the power margin in an implicit mode; reporting the power margin in a mode of mixing periodicity and event trigger; reporting the power margin in a mode of mixing a periodic mode and an implicit mode; and reporting the power margin in a mode of mixing the periodic DCI signaling and the physical layer DCI signaling. The respective modes are described below.

Optionally, the reporting period of the power headroom may include multiple types, for example, at least one of the following: 1ms,2ms,3ms,4ms,5ms,6ms,7ms,8ms,9ms,10ms,20ms,50ms,100ms,200ms,500ms,1000ms, infinity.

Optionally, the reporting of the power headroom in the event trigger manner may also be performed in various manners, for example, including at least one of the following: and under the condition that the change of the path loss reaches a preset threshold value within preset time, triggering and reporting the power allowance.

Optionally, there are multiple ways to dynamically trigger power headroom reporting through the physical layer DCI signaling, for example, at least one of the following may be included: a field for indicating triggering of power headroom reporting is carried in a physical layer DCI signaling; determining a timing relation value of a time domain subframe or a candidate time domain subframe of reporting power headroom; a field of a time domain subframe or a candidate time domain subframe for indicating a reporting power headroom; and triggering the power headroom to carry out one-time reporting or multiple-time reporting by the DCI signaling of the physical layer.

Optionally, reporting the power headroom in an implicit manner includes at least one of: triggering the reported power allowance through the ending moment of downlink transmission burst; triggering and reporting power headroom through the starting moment of uplink transmission burst; and triggering and reporting the power allowance when the Physical Uplink Shared Channel (PUSCH) of the UE exists in the uplink transmission burst.

Optionally, reporting the power headroom in a manner of mixing periodicity and event trigger includes: the period of reporting the power headroom is effective only under the condition that the reporting of the power headroom is triggered by an event; and reporting the power headroom at one time or multiple times by the event trigger at a periodic point.

Optionally, reporting the power headroom in a manner of mixing a periodic manner and an implicit manner includes: reporting a period of power headroom, wherein the period is only after the uplink transmission burst is finished, or the uplink transmission burst is started, or the uplink transmission burst takes effect; and one or more Physical Uplink Shared Channels (PUSCHs) of the UE exist in the uplink transmission burst.

Optionally, reporting the power headroom in a manner of mixing a periodic DCI signaling with a physical layer DCI signaling includes: and the period of reporting the power headroom is triggered by a DCI signaling of a physical layer and then takes effect after the reporting of the power headroom is carried out.

Optionally, the predetermined physical uplink resource may also include multiple types, for example, one of the following: a Physical Uplink Shared Channel (PUSCH); and a Physical Uplink Control Channel (PUCCH).

Optionally, the predetermined physical uplink resource may be located in an unlicensed carrier, or may also be located in a licensed carrier.

Optionally, there may be multiple ways to determine the time domain position reported by the power headroom, for example, at least one of the following ways may be adopted: a DCI signaling configuration mode is carried out through physical layer downlink control information; controlling the RRC signaling configuration mode through a high-level radio link; the base station and the UE have a predetermined mode.

Optionally, determining the time domain position for reporting the power headroom through the physical layer DCI signaling may also adopt various manners, for example, at least one of the following manners may be adopted: sending a physical layer DCI signaling triggering power headroom report on a subframe n, and determining a time domain subframe position or a candidate time domain subframe position reported by the power headroom according to a preset timing relation; or, determining the time domain subframe position or the candidate time domain subframe position reported by the power headroom through a field which is carried in a physical layer DCI signaling and is used for indicating the time domain subframe position or the candidate time domain subframe position reported by the power headroom; triggering power headroom reporting through a first physical layer DCI signaling, indicating a time domain subframe position or a candidate time domain subframe position of the power headroom reporting through a second physical layer DCI signaling, and determining the time domain subframe position or the candidate time domain subframe position of the power headroom reporting; indicating a time domain subframe position or a candidate time domain subframe position reported by the power headroom through a first physical layer DCI signaling, triggering the time domain subframe position or the candidate time domain subframe position reported by the power headroom to take effect through a second physical layer DCI signaling, and/or triggering the power headroom reporting for one time at the time domain subframe position or the candidate time domain subframe position, or reporting the power headroom for multiple times; and indicating the size of a time window for reporting the power headroom or the position of a candidate time domain subframe by using a physical layer DCI signaling, the offset in the time window and an interval parameter in the time window to determine the position of the time domain subframe for reporting the power headroom or the position of the candidate time domain subframe, wherein the starting point of the time window for reporting the power headroom is notified by using the physical layer DCI signaling or determined according to a preset timing relationship.

Wherein the predetermined timing relationship may include: n + k, where n is a subframe for transmitting a physical layer DCI signaling, and k is a positive integer greater than or equal to 1 or greater than or equal to 4.

Optionally, determining the time domain position reported by the power headroom through a high-layer RRC signaling includes: determining the time domain position reported by the power headroom through at least one of the following parameters: reporting the time window length of the power allowance; reporting the initial position of the time window of the power margin; reporting the offset in the time window of the power allowance; reporting a time domain resource interval in a time window of the power allowance; reporting the number of time domain resources in a time window of the power allowance; reporting a time domain resource pattern of the power headroom; reporting the period and the offset of the power headroom; wherein the parameters are configured by RRC signaling.

Optionally, determining the time domain position reported by the power headroom by a mode agreed in advance by the base station and the UE includes: after downlink transmission burst, a first PUSCH subframe scheduled by the UE; after the downlink transmission burst, at least one subframe corresponding to the subframe index number of an even or odd subframe in a plurality of scheduled continuous PUSCH subframes of the UE; one or more continuous PUSCH subframes scheduled by the UE after the downlink transmission burst; one or more continuous PUSCH subframes scheduled by the UE in the uplink transmission burst; in uplink transmission burst, UE is scheduled to be a first PUSCH subframe; in the uplink transmission burst, at least one subframe corresponding to a subframe index number of an even or odd number in a plurality of scheduled continuous PUSCH subframes of the UE; a scheduled PUSCH subframe for the UE.

Optionally, the time domain position reported by the power headroom may be located in an authorized carrier, or may also be located in an unauthorized carrier.

Optionally, the time domain position of the reported power headroom in the time window is continuous in the time domain or discrete; or, the time domain resource for reporting the power headroom in the time window for reporting the power headroom is determined by at least one of the following parameters: reporting the time domain offset and/or the interval and/or the time domain resource size and/or the number of the time domain resources in the time window of the power headroom.

Optionally, after determining the time-frequency position for reporting the power headroom, the method further includes: performing a listen before talk, LBT, mechanism prior to the determined time domain location; and reporting the power headroom at the time domain position under the condition that the LBT mechanism is successfully executed. Optionally, the LBT mechanism corresponds to a predetermined LBT priority level. For example, the LBT performed to report the power headroom is Cat2 of 25us, or an LBT method using a Demodulation Reference Signal (DRS) is used.

Optionally, the predetermined signal or predetermined channel comprises one of: a Physical Uplink Shared Channel (PUSCH); sounding reference signals and a physical uplink shared channel SRS with PUSCH; sounding reference signals and a physical uplink shared channel SRS without PUSCH; and a Physical Uplink Control Channel (PUCCH).

Alternatively, when determining the power headroom of the UE for transmitting the predetermined signal on the predetermined subframe, various manners may be adopted. Preferably, this can be determined in the following way: when the predetermined signal is that the SRS is not transmitted with the PUSCH, the method for calculating the power headroom comprises the following steps: determining the power of the SRS not transmitted by the UE on the predetermined subframe and the power of the PUSCH not transmitted by the UE on the predetermined subframe in a manner of modifying a power calculation formula of the SRS transmitted by the UE on the predetermined subframe and the power calculation formula of the PUSCH transmitted by the physical uplink shared channel; determining the power margin of the SRS not transmitted by the UE on the predetermined subframe and the PUSCH according to the determined transmission power of the SRS not transmitted by the UE on the predetermined subframe and the transmission power of the PUSCH not transmitted by the UE on the predetermined subframe; the power calculation formula of the sounding reference signal and the physical uplink shared channel (SRS) and the Physical Uplink Shared Channel (PUSCH) sent by the UE on the preset subframe is as follows: p _SRS,c (i)＝min{P _CMAX,c (i),P _{SRS_OFFSET,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i)}。

Optionally, modifying a formula of transmit power of the UE for transmitting the SRS and the PUSCH on the predetermined subframe, including: and modifying the value range of m: from [0,1]To [0,2]Wherein, newly introduced m =2 represents SRS without PUSCH; and modifying the value range of j: from [0,2]To [0,3]Wherein, newly introduced j =3 represents SRS without PUSCH, or j =1 represents SRS without PUSCH; given parameter P _{SRS_OFFSET,c} (m) new meanings: shows the power offset of the SRS without PUSCH transmitted this time and the SRS without PUSCH transmitted last time(ii) a Or, transmitting power offset of the SRS without PUSCH relative to the PUSCH transmitted last time; or, transmitting the SRS without PUSCH with respect to a power offset of a PUSCH transmitted within a period of time; or, the power offset of the transmitted SRS with PUSCH relative to the transmitted SRS with PUSCH; impartation of P _{O_PUSCH,c} (j) New meaning, i.e. assigning the parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) New meaning of P _{O_NOMINAL_PUSCH,c} (j) Indicating the normal SRS and/or PUSCH receiving or demodulating, and the expected SRS and/or PUSCH transmitting power level at the base station side; p _{O_UE_PUSCH,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_PUSCH,c} (j) A power bias of (d); wherein, P _{O_PUSCH,c} (j) Including a parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) (ii) a Modifying the parameter alpha _c (j) And configuring a parameter alpha _c (j) Value set of (2): i.e., j ranges from [0,2]To [0,3]And when j =3, α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1}.

Optionally, the method further comprises: introducing a new parameter R on the basis of a power calculation formula of an SRS and a PUSCH _c (i) (ii) a Wherein the parameter R _c (i) When the value is not 0dB, the situation that the UE transmits the SRS on the ith subframe of the cell c without the PUSCH is represented; parameter R _c (i) And when the value is 0dB, the UE transmits the SRS and the PUSCH on the ith subframe of the cell c.

Optionally, the method further comprises: based on the power calculation formula of SRS and PUSCH, a new parameter P is introduced _c (i) In place of parameter P _{SRS_OFFSET,c} (m); wherein, P _c (i) Indicating that the UE does not transmit power of the SRS and the PUSCH in the ith subframe of the cell c relative to the power offset of transmitting the PUSCH and/or the power of the SRS and the PUSCH, or indicating a power adjustment amount; by introducing new parameters P _{O_SRS,c} (j) Replacement parameter P _{O_PUSCH,c} (j) (ii) a Wherein, P _{O_SRS,c} (j) Including P _{O_NOMINAL_SRS,c} (j) And P _{O_UE_SRS,c} (j)；P _{O_NOMINAL_SRS,c} (j) Indicating the normal SRS and/or PUSCH reception or demodulation, the expected SRS and/or PUSCH transmission power level, P, at the base station side _{O_UE_SRS,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_SRS,c} (j) Power bias of (3).

Optionally, the method further comprises: by introducing a new parameter f' _c (i) Replacement parameter f _c (i) Wherein, f' _c (i) Transmitting power adjustment quantity of the situation that the SRS is not transmitted in the ith subframe of the cell c and the PUSCH; by introducing a new parameter P' _CMAX,c (i) Replacement parameter P _CMAX,c (i) Wherein, P' _CMAX,c (i)＝P _CMAX,c (i) Plus or minus a first adjustment quantity, the first adjustment quantity being a real number.

It should be noted that, the above-mentioned manners for modifying the calculation formulas of the SRS and the PUSCH transmission power in the related art may be combined with each other, and different combinations constitute different formulas for calculating the SRS transmission power and the PUSCH transmission power. Some examples are described below, but not limited thereto.

The formula I is as follows:

P _SRS,c (i)＝min{P _CMAX,c (i),P _{SRS_OFFSET,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i) Where, P = P _{SRS_OFFSET,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i)

Wherein, P _{SRS_OFFSET,c} (m) represents the power offset of the terminal UE based on the SRS transmission at this time and the SRS independent transmission at the last time (the SRS independent transmission means that the SRS is transmitted on a subframe i, and no PUSCH transmission is carried out); alternatively, the SRS independent transmission is power offset relative to the last (or most recent) PUSCH transmission; or, the power offset of the SRS independent transmission relative to the PUSCH transmission over a period of time; alternatively, SRS independent transmissionPower offset with respect to SRS and PUSCH transmissions.

P _{O_PUSCH,c} (j) Including a parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j)。P _{O_NOMINAL_PUSCH,c} (j) Indicating normal SRS and/or PUSCH receiving or demodulating, and the expected SRS and/or PUSCH transmitting power level of the base station side; p _{O_UE_PUSCH,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_PUSCH,c} (j) Power bias of (3).

α _c (j) Where j =3, and α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1} represents that the UE transmits SRS on subframe i, but without PUSCH.

f _c (i) May be indicated by a TPC command for no-Scheduled PUSCH field in the physical layer DCI signaling.

The formula II is as follows:

P _SRS,c (i)＝min{P _CMAX,c (i),P _{SRS_OFFSET,c} (m)+R _c (i)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i) Wherein, the position of the base is changed,

P＝P _{SRS_OFFSET,c} (m)+R _c (i)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i)

wherein, on the basis of a calculation formula of the transmission power of PUSCH for transmitting SRS on a subframe i defined in a related protocol, a new parameter R is introduced _c (i) In that respect Wherein R is _c (i) And 0dB represents that the transmission power of PUSCH is existed in the SRS transmitted on the subframe i. R is _c (i) And when the configuration is not 0dB, the SRS is transmitted on the subframe i without the transmission power of the PUSCH. f. of _c (i) May be indicated by a TPC command for no-Scheduled PUSCH field in the physical layer DCI signaling.

The formula III is as follows:

P _{SRS_q,c} (i)＝min{P _CMAX,c (i),P _{SRS_OFFSET_q,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH_q,c} (j)+α _c (j)·PL _c +f _q,c (i) Where, P = P _{SRS_OFFSET_q,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH_q,c} (j)+α _c (j)·PL _c +f _q,c (i)

On the basis of a transmission power calculation formula defined in a related protocol and used for transmitting the SRS with the PUSCH on the subframe i, a new parameter q is introduced, and whether the SRS with the PUSCH is transmitted on the subframe i or not is distinguished through different values of q.

f _q,c (i) May be indicated by a TPC command for no-Scheduled PUSCH field in the physical layer DCI signaling.

The formula IV is as follows:

P _SRS,c (i)＝min{P _CMAX,c (i),P _c (i)+10log ₁₀ (M _SRS,c )+P _{O_SRS,c} (j)+α _c (j)·PL _c +f _c (i)}

wherein, P = P _c (i)+10log ₁₀ (M _SRS,c )+P _{O_SRS,c} (j)+α _c (j)·PL _c +f _c (i)

Wherein, on the basis of formula one, a power adjustment quantity P is introduced _c (i) Indicating the power offset of the SRS relative to the SRS and/or PUSCH transmission.

P _{O_SRS,c} (j) Can be composed of P _{O_NOMINAL_SRS,c} (j) And P _{O_UE_SRS,c} (j) In that respect Wherein, P _{O_NOMINAL_SRS,c} (j) Indicating the normal SRS and/or PUSCH reception or demodulation, the SRS and/or PUSCH transmission power level desired by the base station side. P _{O_UE_SRS,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_SRS,c} (j) Power bias of (3).

The formula five is as follows:

P' _SRS,c (i)＝min{P' _CMAX,c (i),10log ₁₀ (M _SRS,c )+P _{O_SRS,c} (j)+α _c (j)·PL _c +f′ _c (i)}

wherein, P =10log ₁₀ (M _SRS,c )+P _{O_SRS,c} (j)+α _c (j)·PL _c +f′ _c (i)

Only one power adjustment quantity f 'is introduced' _c (i) To adjust SRS transmission power. Wherein, f' _c (i) May be indicated by a TPC command for no-Scheduled PUSCH field in the physical layer DCI signaling.

P' _CMAX,c (i) This indicates the maximum transmission power in case of SRS independent transmission (i.e., UE transmitting SRS without PUSCH in a subframe).

Preferably, P' _CMAX,c (i)＝P _CMAX,c (i) Plus or minus a first adjustment amount. The first adjustment amount may take a positive integer and/or decimal or a negative integer and/or decimal.

P＝P _{SRS_OFFSET,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i)。

Optionally, when determining the power headroom between the UE and the PUSCH when transmitting the SRS on the predetermined subframe according to the determined transmission power between the UE and the PUSCH on the predetermined subframe, various manners may also be adopted, for example, the following two determination manners may be adopted: PH value _c (i)＝P _CMAX,c (i) -P, or PH _c (i)＝P' _CMAX,c (i) -P; wherein the pH is _c (i) And P is a second term in parentheses in the SRS transmission power calculation formula, and is used for transmitting the power margin of a predetermined signal on the ith subframe of the cell c by the UE.

Optionally, the parameter for the determined UE to transmit the SRS at the predetermined subframe and the transmission power of the PUSCH may be obtained in various manners, for example, the parameter for the determined UE to transmit the SRS at the predetermined subframe and the transmission power of the PUSCH may be obtained in at least one of the following manners: controlling a static or semi-static configuration mode of RRC signaling through a high-level radio link; the method is realized by a DCI signaling mode.

Wherein the physical layer DCI signaling comprises at least one of: UE (user equipment) is provided with a DCI signaling, and DCI format 0/4 is adopted; common DCI signaling, DCI format 1C is adopted; group downlink control information Group DCI signaling adopts DCI format 3/3A; downlink control information DL DCI signaling adopts DCI format 1A/2B/2C; new DCI signaling.

To specifically describe the above embodiments and preferred embodiments, the power headroom of the SRS without PUSCH is taken as an example for description. Combining a formula for calculating the transmission power of the SRS with the PUSCH in the related art, calculating the transmission power of the SRS with the PUSCH by modifying the formula for calculating the transmission power of the SRS with the PUSCH, determining the power headroom for transmitting the SRS with the PUSCH on a predetermined subframe by calculating the obtained transmission power of the SRS with the PUSCH, and reporting the calculated power headroom.

Before modifying the formula for calculating the SRS with PUSCH transmission power, the description about SRS power control in 36.213 in the related art is introduced:

transmission power P of Sounding related symbol of ith subframe _SRS It can be expressed as: p _SRS,c (i)＝min{P _CMAX,c (i),P _{SRS_OFFSET,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i) In the SRS power control formula, the meaning and configuration of each parameter are as follows:

P _CMAX,c (i) The maximum transmit power to the UE is indirectly configured for the higher layers.

P _CMAX,C ＝min{P _EMAX,C ,P _UMAX,C }。

Wherein, P _EMAX,C Is the maximum allowed transmit power, P, of the higher layer configuration _UMAX,C Is the maximum transmit power determined according to the UE capabilities.

P _{SRS_OFFSET,c} (m) represents the power offset of the SRS relative to the PUSCH, is a semi-static parameter configured by a higher layer, and occupies 4 bits.

When the PUSCH takes different Ks values, the value ranges are different.

Wherein Ks =1.25, the value range [ -3,12] dB, the step length is 1; ks =0, the value range [ -10.5,12] dB, and the step length is 1.5.Ks is used for power correction due to MCS changes. The value of m, m =0 denotes a period, and m =1 denotes a non-period.

M _SRS,c The number of RBs, which corresponds to the transmission bandwidth of the SRS, is a unit RB.

P _{O_PUSCH,c} (j) The power reference value is composed of two parts:

P _{O_NOMINAL_PUSCH,c} (j) The cell-specific parameters, which account for 8bits, are configured by RRC semi-static, and the value range is [ -126,24]. The meaning is as follows: and carrying out PUSCH demodulation normally, and carrying out the PUSCH transmission power level expected by the base station.

P _{O_UE_PUSCH,c} (j) Occupies 4bits for UE specific parameters, and is configured by RRC semi-static state, and the value range of the RRC semi-static state is [ -8,7]. The meaning is as follows: UE relative to P _{O_NOMINAL_PUSCH,c} (j) Power bias of (3).

j =0, representing semi-persistent scheduling; j =1, representing dynamic scheduling; j =2, indicating power control of msg 3;

wherein, for msg3, P _{O_NOMINAL_PUSCH,c} (2)＝P _{O_PRE} +△ _{PREAMBLE_Msg3} ，P _{O_PRE} Indicating the Preamble initial target received power, is notified in the broadcast information. Delta _{PREAMBLE_Msg3} The format offset of Msg3 with respect to Preamble is signaled in the broadcast message. P is _{O_UE_PUSCH} (2)＝0。

α _c (j) The cell level parameters of the path loss compensation system (same as the path loss compensation parameters) occupy 3bits and are configured by a high layer. Where α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1}.

For j =0,1, α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1}, 3bits are occupied, with a high level configuration.

For j =2, α =1.

For SRS, j =1.

PL _c Obtaining the path loss through RSRP measurement value and Cell-specific RS transmitting power;

f _c (i) Two calculation modes are included:

accumulation mode: f (i) = f (i-1) + delta _PUSCH (i-4). Wherein, delta _PUSCH (i-4) is the TPC command on the i-4 th subframe.

Absolute value formula: f (i) = δ _PUSCH (i-4), absolute value (power control for PUSCH only), the choice of the two modes is determined by the RRC layer.

δ _PUSCH Is a TPC command for PUSCH.

Based on the above, in the SRS power control formula, the parameters related to the PUSCH include: p _{SRS_OFFSET,c} (m)，P _{O_NOMINAL_PUSCH,c} (j)，P _{O_UE_PUSCH,c} (j)，f _c (i)。

The method comprises the steps of firstly writing related SRS power control parameter values, modifying the existing formula, and writing PHR contents when SRS independent transmission and SRS and PUSCH are simultaneously transmitted.

Based on the above formula for calculating the SRS with PUSCH transmission power, the manner of modifying the formula for calculating the SRS with PUSCH transmission power may include various ways, which is described below in a manner of a preferred embodiment.

Preferred embodiment 1

In the preferred embodiment, a method for calculating power for terminal UE to transmit SRS is provided for terminal UE to transmit SRS without PUSCH in subframe i.

Based on the provisions in the related LTE technology, the terminal UE transmits the SRS on the subframe i, and the SRS transmission power calculation formula is as follows:

P _SRS,c (i)＝min{P _CMAX,c (i),P _{SRS_OFFSET,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i) } (formula one)

And for the case that the terminal UE transmits the SRS in the subframe i but has no PUSCH transmission, the SRS transmission power calculation formula for transmitting the SRS may continue to use the SRS transmission power calculation formula for transmitting the SRS in the subframe i and the PUSCH specified in the relevant LTE protocol, but the value range of the parameters related to the PUSCH in the formula may be modified, and/or new meanings are given to the parameters related to the PUSCH, and/or new parameters are introduced (for example, the offset parameter between the SRS transmission in the subframe i and the PUSCH and between the SRS transmission in the subframe i and no PUSCH).

In the SRS transmission power calculation formula in the first formula, the parameters related to the PUSCH include: p _{SRS_OFFSET,c} (m)，P _{O_NOMINAL_PUSCH,c} (j)，P _{O_UE_PUSCH,c} (j)，f _c (i)。

Parameter P _{SRS_OFFSET,c} (m) the operation is as follows:

for the case that the terminal UE transmits SRS in the subframe i but has no PUSCH transmission, P may be given _{SRS_OFFSET,c} (m) New meanings of the parameters:

for example, P _{SRS_OFFSET,c} (m) is based on the power offset of this SRS transmission and the last SRS independent transmission (SRS independent transmission means that SRS is transmitted on subframe i, no PUSCH transmission); alternatively, the SRS independent transmission is power offset relative to the last (or most recent) PUSCH transmission; or, the power offset of the SRS independent transmission relative to the PUSCH transmission over a period of time; alternatively, SRS independent transmission is offset with respect to the power of SRS and PUSCH transmissions. Wherein, the range of m is kept unchanged, that is, m =0 represents a periodic SRS, and m =1 represents an aperiodic SRS.

Or,

for the case that the terminal UE transmits the SRS in the subframe i but has no PUSCH transmission, a power offset may be introduced in one of the above formulas, or a power offset set, where the power offset and/or the power offset set is used to indicate an adjustment amount, denoted as R, for the SRS and PUSCH transmission in one subframe due to the introduction of the SRS independent transmission, and the adjustment amount is relative to the SRS and PUSCH transmission in one subframe _c (i) In that respect Wherein c is a cell c, i is a subframe index number, R _c (i) Is a positive or negative value, or a set of positive and negative values. Namely, the existing SRS power calculation formula is:

P _SRS,c (i)＝min{P _CMAX,c (i),P _{SRS_OFFSET,c} (m)+R _c (i)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i) } (second formula)

Wherein R is _c (i) When the configuration is 0, it indicates that there is PUSCH for SRS transmission. R _c (i) When configured as a non-zero natural number (e.g., a positive number and/or a negative number), it indicates that there is SRS transmission and no PUSCH condition in one subframe. In addition, the method can be used for producing a composite material，R _c (i) The value adjustment may be determined according to a comparison of PL with a preset threshold value, or may be adjusted according to a number of failures or successes of LBT performed by the UE to transmit SRS. R is _c (i) The parameters may be configured by higher layer RRC signaling, or physical layer DCI signaling (e.g., DCI format 3/3A/1C/2A/2B/2C/2D), or agreed in advance by the base station and the UE.

Or,

p may be modified for terminal UE transmitting SRS on subframe i, but no PUSCH transmission case _{SRS_OFFSET,c} (m) the value range of the parameter: aiming at the scene of SRS without PUSCH, the value range [ X3, Y3 ]]Step A3. Wherein a configuration P is assumed _{SRS_OFFSET,c} When the number of bits occupied by the (m) parameter is not changed (i.e. 4bits of the relevant LTE protocol are followed), preferably, X3>Y3 of = -3dB or-10.5dB<12db, a3 may be a natural number of 1 or more, or a natural number of 1.5 or more, or a natural number of 1 or less, or a natural number of 1.5 or less. Assume configuration P _{SRS_OFFSET,c} P when the bit number occupied by the (m) parameter is greater than 4bits specified in the relevant protocol _{SRS_OFFSET,c} (m) range of values [ -3 + -X1, 12 + -Y1 ]]dB, the step length is 1 plus or minus A1; or, P _{SRS_OFFSET,c} (m) ranges of [ -10.5 + -X2, 12 + -Y2 ]]dB, step size is 1.5 +/-A2.

Or,

for the case that the terminal UE transmits SRS in subframe i but no PUSCH transmission, it can be in P _{SRS_OFFSET,c} (m) introduction of a parameter k for distinguishing between transmission of SRS without PUSCH on subframe i and transmission of SRS and PUSCH on subframe i. Wherein, the value of q is 0 and 1,0 indicates that the SRS is transmitted without PUSCH in the subframe i, or indicates that the SRS and the PUSCH are transmitted in the subframe i, and 1 indicates that the SRS is transmitted in the subframe i, or indicates that the SRS is transmitted without PUSCH in the subframe i. I.e. P in the SRS transmission power calculation formula _{SRS_OFFSET,c} (m) parameter becomes P _{SRS_OFFSET_q,c} (m)。

Wherein, P _{SRS_OFFSET_0,c} (m) indicates that the SRS is transmitted without the PUSCH in the subframe i, or indicates that the SRS and the PUSCH are transmitted in the subframe i; p _{SRS_OFFSET_1,c} (m) denotes transmission of SRS and PUSCH on subframe i, or, tableAnd the SRS is transmitted without the PUSCH on the subframe i.

Or,

for terminal UE transmitting SRS on subframe i but no PUSCH transmission case, P can be extended _{SRS_OFFSET,c} And (m) the value range of m in the parameter. That is, in addition to the value of m being 0 and 1, a newly added value of 2 may be taken. Where m =0 denotes a periodic SRS, m =1 denotes an aperiodic SRS, and m =2 denotes no PUSCH for SRS transmission.

Or,

for the case that the terminal UE transmits SRS in the subframe i but has no PUSCH transmission, P may be given _{SRS_OFFSET,c} And (m) in the parameter, the value of m has new meaning. For example, m =0 indicates an "SRS and PUSCH" scenario, and m =1 indicates an "SRS without PUSCH" scenario.

Or,

does not change the parameter P in the related art _{SRS_OFFSET,c} And (m) representing meaning and value range, and multiplexing related LTE protocols.

Parameter P _{SRS_OFFSET,c} (m), and/or, R _c (i) And/or, X1, and/or, Y1, and/or, X2, and/or, Y2, and/or, X3, and/or, Y3, and/or, A1, and/or, A2, and/or, A3, and/or, P _{SRS_OFFSET_q,c} (m), and/or m may be statically or semi-statically configured through higher layer RRC signaling, and/or physical layer UE-specific DCI signaling (e.g., format 0/4 signaling), and/or common DCI signaling (e.g., format 1C), and/or group DCI signaling (e.g., format 3/3A), and/or DL grant (e.g., format 1A/2B/2C), and/or predefined. Wherein, a field indicating the SRS power calculation parameter may be added in the higher layer RRC signaling, or the physical layer UE specific DCI signaling (e.g., format 0/4 signaling), or the common DCI signaling (e.g., format 1C), or the group DCI signaling (e.g., format 3/3A), or the DL grant (e.g., format 1A/2B/2C). Further, for common DCI signaling (e.g., format 1C), the fields of the SRS power calculation parameters may be indicated in reserved bits in the DCI format.

The following embodiments will be introduced for the case where the terminal UE transmits SRS in subframe i, but there is no PUSCH transmission, andthe parameter P _{O_NOMINAL_PUSCH,c} (j)，P _{O_UE_PUSCH,c} (j)，f _c (i) Modification of (2).

Preferred embodiment 2

In the preferred embodiment, based on the content of the preferred embodiment 1, or without changing P in the formula I _{SRS_OFFSET,c} (m) parameter, modification P _{O_PUSCH,c} (j) And (4) parameters.

Wherein, P _{O_PUSCH,c} (j) Is formed by a parameter P _{O_NOMINAL_PUSCH,c} (j)，P _{O_UE_PUSCH,c} (j) And (4) forming.

For the case where the terminal UE transmits SRS on subframe i but no PUSCH transmission, a new value of j may be introduced. I.e., j can introduce a new value of 3 in addition to 0,1,2 as specified in the existing protocol. Wherein j =0 represents semi-persistent scheduling; j =1 denotes dynamic scheduling; j =2 denotes power control of msg 3; j =3 indicates that SRS transmission is PUSCH-free. In addition, for the case where SRS is transmitted on subframe i and there is no PUSCH, j may be configured to be 1.

And/or the presence of a gas in the gas,

impartation of P _{O_PUSCH,c} (j) The new meanings of (a): that is, the parameter P is given _{O_NOMINAL_PUSCH,c} (j)，P _{O_UE_PUSCH,c} (j) New meaning. For example, P _{O_NOMINAL_PUSCH,c} (j) Indicating the normal SRS and/or PUSCH reception or demodulation, the SRS and/or PUSCH transmission power level desired by the base station side. P _{O_UE_PUSCH,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_PUSCH,c} (j) Power bias of (3). Wherein j can take the value of 0,1,2,3, and the meaning can be the same as above.

Or,

P _{O_PUSCH,c} (j) New meanings may be assigned in addition to the original meanings and/or new parameters may be introduced to distinguish the original meanings from the newly assigned meanings. I.e. P _{O_PUSCH,c} (j) Modified as P _{O_PUSCH_q,c} (j) Further, P _{O_PUSCH,c} (j) Is also modified to P _{O_NOMINAL_PUSCH_q,c} (j)，P _{O_UE_PUSCH_q,c} (j) In that respect Wherein q is 0,1.0 represents the original meaning or the new meaning. The 1 correspondence indicates a new meaning or an original meaning. For example:

P _{O_PUSCH_0,c} (j) Indicates a power reference value prescribed in the relevant protocol, or indicates an SRS power reference value. P _{O_PUSCH_1,c} (j) Indicates the SRS power reference value, or indicates the power reference value specified in the relevant protocol.

P _{O_NOMINAL_PUSCH_0,c} (j) The method can be used for indicating the PUSCH transmission power level expected by the base station when the PUSCH demodulation is normally carried out, or indicating the SRS and/or PUSCH transmission power level expected by the base station side when the normal SRS and/or PUSCH receiving or demodulation is carried out. P _{O_NOMINAL_PUSCH_1,c} (j) The method can be used for indicating the normal SRS and/or PUSCH receiving or demodulating and the SRS and/or PUSCH transmitting power level expected by the base station side, or indicating the PUSCH transmitting power level expected by the base station when the PUSCH demodulating is normally carried out.

P _{O_UE_PUSCH_0,c} (j) Indicates UE to P _{O_NOMINAL_PUSCH,c} (j) Or indicates that the UE transmits SRS and/or PUSCH relative to P _{O_NOMINAL_PUSCH_0,c} (j) Power bias of (3). P _{O_UE_PUSCH_1,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_PUSCH_0,c} (j) Or, indicates the UE is relative to P _{O_NOMINAL_PUSCH,c} (j) Power bias of (3).

And/or the presence of a gas in the gas,

deleting P _{O_PUSCH,c} (j) Parameters newly defined an SRS Transmission Power parameter, e.g., P _{O_SRS,c} (j) Wherein, optionally, P _{O_SRS,c} (j) Can be composed of P _{O_NOMINAL_SRS,c} (j) And P _{O_UE_SRS,c} (j) .1. The Wherein, P _{O_NOMINAL_SRS,c} (j) Indicating the normal SRS and/or PUSCH reception or demodulation, the SRS and/or PUSCH transmission power level desired by the base station side. P is _{O_UE_SRS,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_SRS,c} (j) Power bias of (3). Optionally, P in formula two may also be deleted _{SRS_OFFSET,c} (m) and/or Rc (i) parameters, introducing a new power adjustment amount Pc (i), i.e. the formula for SRS independent transmission becomes:

P _SRS,c (i)＝min{P _CMAX,c (i),P _c (i)+10log ₁₀ (M _SRS,c )+P _{O_SRS,c} (j)+α _c (j)·PL _c +f _c (i) Either of the (a) and (b) },

parameters related to PUSCH, including P _SRS,c (i) And/or, P _CMAX,c (i) A corner mark parameter q is introduced into the parameter, wherein the value of q is 0 and 1, wherein 0 represents the power calculation power of the PUSCH condition in the SRS transmission specified in the existing protocol. 1 denotes the power calculation power for the case of SRS transmission without PUSCH. Optionally, a new calculation formula is designed, as detailed in the following preferred embodiments.

Optionally, the above parameter for the case of no PUSCH for SRS transmission takes the following values:

P _{O_NOMINAL_PUSCH,c} (j) Or, P _{O_NOMINAL_PUSCH_0,c} (j) Or, P _{O_NOMINAL_PUSCH_1,c} (j) Or, P _{O_NOMINAL_SRS,c} (j) The value range of [ -126 +/-X4, 24 +/-Y4 [) ]，P _{O_UE_PUSCH,c} (j) Or, P _{O_UE_PUSCH_0,c} (j) Or, P _{O_UE_PUSCH_1,c} (j) Or, P _{O_UE_SRS,c} (j) The value range of [ -8 +/-X5, 7 +/-Y5 [)]。

X1 and Y1, or X2 and Y2, or X3 and Y3, or X4 and Y4, or X5 and Y5 in the present preferred embodiment may be configured to be the same value, or different values.

Wherein, P _{O_NOMINAL_PUSCH,c} (j) And/or, P _{O_NOMINAL_PUSCH_0,c} (j) And/or, P _{O_NOMINAL_PUSCH_1,c} (j) And/or, P _{O_NOMINAL_SRS,c} (j) And/or, P _{O_UE_PUSCH,c} (j) And/or, P _{O_UE_PUSCH_0,c} (j) And/or, P _{O_UE_PUSCH_1,c} (j) And/or, P _{O_UE_SRS,c} (j) And/or j may be obtained by higher layer RRC signaling static or semi-static configuration, and/or physical layer UE-specific DCI signaling (e.g., format 0/4 signaling), and/or common DCI signaling (e.g., format 1C), and/or group DCI signaling (e.g., format 3/3A), and/or DL grant (e.g., format 1A/2B/2C), and/or predefined manner. That is, an indication field of a parameter is added in signaling, wherein for DCI format 1C, the parameter may be indicated by using a reserved bit.

Preferred embodiment 3

In the preferred embodiment, based on the content of the above preferred embodiment 1 and/or the preferred embodiment 2, the path loss compensation factor α is modified _c (j) And (4) parameters. Wherein optionally P in formula one is not changed _{SRS_OFFSET,c} (m) and/or P _{O_PUSCH,c} (j)。

According to the relevant LTE protocol, α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1}, and based thereon, different j values correspond to different α values or sets of α values. Where j =0,1, α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1}, and j =2, α =1. Further, the relevant LTE protocol specifies that j =1 for SRS transmission and PUSCH in one subframe. Therefore, a new value of j may be introduced, e.g., j =3, for indicating SRS transmission in one subframe, but without PUSCH case. Further, when j =3, α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1}. Or, using alpha _c (1) Indicates SRS transmission but no PUSCH case.

The j value may be obtained by higher layer RRC signaling static or semi-static configuration, and/or physical layer UE-specific DCI signaling (e.g., format 0/4 signaling), and/or common DCI signaling (e.g., format 1C), and/or group DCI signaling (e.g., format 3/3A), and/or DL grant (e.g., format 1A/2B/2C), and/or predefined manner. Namely, the added j value and/or the value set of j formed after j is added and/or j value is informed to UE by the signaling or the predefined mode. That is, a parameter α for indication is added to the signaling _c (j) Wherein, for DCI format 1C, the reserved bit may be adopted to indicate the parameter α _c (j) The value of j.

Preferred embodiment 4

In the preferred embodiment, f is known from the associated protocol _c (i) The parameters are notified to the UE through physical layer DCI signaling, and in a TPC field in the corresponding DCI signaling, TPCs of the parameters are bound with PUSCH. Based on this, for the case that there is SRS transmission but no PUSCH in one subframe, a new field, for example, a TPC command for no-Scheduled PUSCH field, may be introduced in the corresponding DCI signaling.

Or,

the TPC command field of the relevant DCI format is used, but a no-Scheduled PUSCH is introduced in this field. For example, the TPC command field includes: TPC command for Scheduled PUSCH and TPC command for no-Scheduled PUSCH. (without dynamic UL grant, for SPS traffic.)

Or,

introducing a new corner mark parameter q, i.e. f _q,c (i) In that respect Wherein q is 0 and 1. f. of _0,c (i) Indicates a TPC command for Scheduled PUSCH, or a TPC command for no-Scheduled PUSCH. f. of _1,c (i) Denotes a TPC command for no-Scheduled PUSCH, or a TPC command for Scheduled PUSCH.

Or,

defining parameters, i.e. f ', dedicated to indicate TPC command for no-Scheduled PUSCH' _c (i)。

Wherein f is _q,c (i) And/or, q, and/or, f _c (i) And/or, f' _c (i) The configuration may be statically or semi-statically configured through higher layer RRC signaling, and/or physical layer UE-specific DCI signaling (e.g., format0/4 signaling), and/or common DCI signaling (e.g., format 1C), and/or group DCI signaling (e.g., format 3/3A), and/or DL grant (e.g., format 1A/2B/2C), and/or predefined. That is, a parameter f for indication is added in signaling _q,c (i) And/or, q, and/or, f _c (i) And/or, f' _c (i) Wherein for DCI format 1C, a reserved bit may be employed to indicate f _q,c (i) And/or, q, and/or, f _c (i) And/or, f' _c (i)。

Preferred embodiment 5

In the preferred embodiment, an SRS transmission power calculation formula is provided for a subframe in which SRS transmission is performed without PUSCH.

Based on the provisions in the relevant LTE technology, the terminal UE transmits the SRS on the subframe i, and the SRS transmission power calculation formula is as follows:

P _SRS,c (i)＝min{P _CMAXc, (i),P _{SRS_OFFSE,c} T(m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCHc,} (j)+α _c (j)·PL _c +f _c (i) } (formula one)

And for terminal UE transmitting SRS without PUSCH on subframe i, the power calculation formula of SRS transmission is as follows:

P _SRS,c (i)＝min{P' _CMAX,c (i),P _c (i)+10log ₁₀ (M _SRS,c )+P _{O_SRS,c} (j)+α _c (j)·PL _c +f′ _c (i)}

wherein, P _SRS,c (i) And transmitting power of the transmitted SRS when the UE transmits the SRS in the subframe i and has no PUSCH.

P' _CMAX,c (i) The maximum transmit power for SRS independent transmission (i.e., UE transmitting SRS without PUSCH in a subframe). Preferably, P' _CMAX,c (i)＝P _CMAX,c (i) Plus or minus a first adjustment amount. The first adjustment amount may be a single value or a set of values. Alternatively, the first adjustment amount may be a positive integer and/or decimal, or a negative integer and/or decimal. Wherein the first adjustment amount is introduced due to P _CMAX,c (i) Based on the fact that the UE transmits PUSCH and/or SRS and/or PUCCH in one subframe, and for the case of no PUSCH in the subframe, the power of transmission without PUSCH can be adjusted or compensated by introducing the first adjustment amount.

P _c (i) For the second adjustment amount, the reason for introducing is that there is no PUSCH, there is no SRS power offset based on the PUSCH, and thus the second adjustment amount is introduced. P _c (i) The parameter is optional, i.e., it may be deleted, or, reserved.

f′ _c (i) Is a parameter dedicated to indicate the TPC command for no-Scheduled PUSCH. It may be configured in accordance with physical layer DCI signaling, i.e. physically A TPC command for no-Scheduled PUSCH field is introduced into the layer DCI signaling.

Alternatively, j may take the value 0,1,2,3. The details are described in the above preferred embodiment 3. Alternatively, it may be indicated that configuration j is 0 or 1 (indicating that there is no PUSCH for SRS transmission), or j parameters are not introduced.

Optionally, a parameter M _SRS,c The parameter is optional for transmitting SRS on subframe i without PUSCH. I.e., may be deleted, or, may be retained.

Optionally, P' _SRS,c (i) And/or, P' _CMAX,c (i) And/or the first adjustment amount, and/or, P _{O_SRS,c} (j) And/or, f' _c (i) And/or j may be obtained by higher layer RRC signaling static or semi-static configuration, and/or physical layer UE-specific DCI signaling (e.g., format 0/4 signaling), and/or common DCI signaling (e.g., format 1C), and/or group DCI signaling (e.g., format 3/3A), and/or DL grant (e.g., format 1A/2B/2C), and/or predefined manner.

Preferred embodiment 6

In the preferred embodiment, a method for reporting power headroom of an SRS to a PHR is provided.

According to the regulations in the relevant LTE technology, the PHR reporting method includes: reporting PHR periodically; and triggering a PHR (reporting the PHR by the terminal UE) by a condition (wherein the condition is that when the change of the path loss reaches a preset threshold value within a certain time, the reporting of the PHR is triggered). Optionally, the PHR of the UE is reported through its PUSCH.

Based on this, for LAA, the number of uplink and/or downlink subframes is not fixed due to uncertainty of uplink and/or downlink traffic, and besides, there is also an influence of the LBT execution result, so that PUSCH transmission is opportunistic, and thus, the reporting opportunity of PHR is limited to a certain extent. Or, under the condition that there is no PUSCH for SRS transmission, the transmission power range may be exceeded, so that SRS transmission power headroom reporting is very important.

In the preferred embodiment, the terminal UE reports the SRS headroom report, which is recorded as PH _SRS (i) Or, PH' _SRS (i) In that respect Wherein the pH is _SRS (i) The power headroom report value indicates that the terminal UE transmits the SRS in subframe i with the PUSCH. PH' _SRS (i) It indicates the power headroom report value when the terminal UE transmits SRS without PUSCH in subframe i.

Alternatively,

PH _SRS (i)＝P _CMAX,c (i)-{P _{SRS_OFFSET,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i) } and

PH' _SRS (i)＝P _CMAX,c (i)-P” _SRS,c (i) Or, PH' _SRS (i)＝P' _CMAX,c (i)-P” _SRS,c (i) In that respect Wherein, P ″) _SRS,c (i) When the terminal UE transmits the SRS without PUSCH on the subframe i, calculating a second part arithmetic expression in curly brackets in a transmission power formula. P' _CMAX,c (i) The maximum transmit power for SRS independent transmission (i.e., UE transmitting SRS without PUSCH in a subframe). Preferably, P' _CMAX,c (i)＝P _CMAX,c (i) Plus or minus a first adjustment amount. The same meanings as in example 5 correspond to the above. Alternatively, P " _SRS,c (i) May also be denoted as P.

In this context, for LAA, the reporting of PHR by the terminal UE may adopt at least one of the following modes:

the first method is as follows: the PHR is reported in the PUSCH on one or more carriers in the PCell.

There are two cases here: one is that UE transmits SRS on subframe i and has PUSCH power headroom report to report; and the other is that the UE transmits the SRS on the subframe i without the power headroom report reporting of the PUSCH.

Optionally, the UE transmits the power headroom report with PUSCH for the SRS in the subframe i, and/or the power headroom report without PUSCH for the SRS transmitted in the subframe i may be transmitted on an authorized carrier or reported on an unauthorized carrier. If reporting on the unlicensed carrier, the terminal UE needs to perform a listen before talk LBT mechanism before reporting the PHR, where the LBT mechanism adopted for reporting the PHR may be the same as the LBT mechanism adopted for the PUSCH, or the PHR corresponds to an LBT priority, and optionally, a priority level 1 or 2 is configured.

For the case that there is no PUSCH of the UE on the unlicensed carrier, or the PUSCH of the UE is not changed for a certain period of time, or there is no PUSCH on a periodic PHR reporting point, or when a trigger condition is reached but there is no PUSCH scheduling, the UE may send a PHR on a PUSCH time domain resource scheduled on the PCell.

Or, the terminal UE may not compete for the usage right of the unlicensed carrier on the unlicensed carrier all the time, that is, LBT fails, or the periodic point within a certain time does not compete for the usage right of the unlicensed carrier, or the periodic point does not compete for the usage right of the unlicensed carrier, or the number of times that the periodic point does not compete for the usage right of the unlicensed carrier is greater than a preset threshold, then the UE may send the PHR on the PUSCH time domain resource scheduled on the PCell.

In addition, the conditions for triggering PHR reporting in the relevant protocol may also be modified: besides the condition that the change of the path loss reaches the preset threshold value within a certain time, optionally, the conditions that can be added are: for the LAA DC or the Standalone scenario, the terminal is assumed not to compete for the usage right of the unlicensed carrier within a certain time, or when the number of times that the terminal performs LBT failure within a certain time reaches a preset threshold, the terminal UE reports PHR in two processing modes: one is that: once the terminal contends for the unlicensed carrier, the PHR may be reported on the scheduled PUSCH on the unlicensed carrier. And the other is to trigger the UE to report PHR on the scheduled PUSCH on the authorized carrier. The PHR reporting mode is not only suitable for a single carrier scene, but also suitable for a multi-carrier scene. That is, in a multi-carrier scenario, if the UE has no PUSCH on a certain unlicensed carrier, or has no PUSCH for a certain time, or the number of times that the UE has no PUSCH on the carrier for a certain time reaches a preset threshold, the terminal UE may schedule a PUSCH subframe on another carrier of the multiple carriers to transmit the PHR. Optionally, at least one of the plurality of carriers may be an unlicensed carrier, and/or a licensed carrier.

The second method comprises the following steps: and reporting the PHR on a specific PUSCH time domain position on the unlicensed carrier. The specific PUSCH may be a scheduling subframe of itself, or may also be a scheduling subframe of another UE, or may be reported in UCI (where UCI may be in PUCCH or PUSCH), or in CSI, or in PRACH, or in DM-RS by carrying a PHR.

The third method comprises the following steps: reporting the PHR at a scheduled PUSCH time domain position on one of the plurality of unlicensed carriers.

If the UE obtains the usage rights of multiple unlicensed carriers through a multi-carrier LBT contention access manner or a specific LBT manner, the UE may report the PHR on a specific scheduled PUSCH carrier or any scheduled PUSCH carrier among multiple licensed carriers if the UE meets a reporting condition at a reporting period point of the PHR.

In addition, the terminal UE reports the time domain resource position of the PHR, and according to the premise that the existing PHR is reported through the PUSCH, the time domain resource position reported by the PHR is at least one of the PUSCH time domain positions of the terminal UE to which the PHR belongs.

Optionally, the reporting period of the PHR is related to the uplink transmission duration, for example, when the uplink transmission duration is 4, if the UE is scheduled with only one subframe in the uplink transmission duration, and on the premise that the LBT is successful, the UE may report the PHR on a scheduled PUSCH subframe.

For another example, the PHR reporting period only takes effect at the start time of uplink transmission, or the PHR reporting period only takes effect after the burst of downlink transmission. Further, the period offset reported by the PHR in the uplink transmission duration is the first uplink subframe by default, or the first scheduled subframe position of the UE in the uplink transmission duration, or the scheduled subframe position of the UE in the uplink transmission burst may report the PHR.

As another example, PHR reporting period is activated by physical layer DCI signaling. Wherein, the physical layer DCI signaling comprises: UE-specific DCI signaling (e.g., format 0/4 signaling), and/or common DCI signaling (e.g., format 1C), and/or group DCI signaling (e.g., format 3/3A), and/or DL grant (e.g., format 1A/2B/2C).

For another example, PHR reporting may be triggered by a physical layer DCI signaling, that is, once the physical layer DCI signaling configures PHR reporting field enabling, reporting on at least one of the PUSCHs of the UE as long as there is a PUSCH of the UE, that is, a PHR, within an uplink transmission duration. When the UE is continuously scheduled with multiple subframes in the uplink transmission burst, the UE may report the PHR on multiple PUSCH subframes again, or the UE may report the PHR on a specific PUSCH subframe on multiple PUSCH subframes again (for example, in multiple continuous scheduling cases, the scheduling subframe index is even, or the subframe index is odd, or once reporting on the PUSCH is successful, the PHR is not reported on the corresponding subsequent scheduling subframe index is even, or the subframe index is odd, or reporting is continued), and/or once reporting on the PUSCH is successful, the PHR is not reported on the multiple scheduling subframes of the UE within the uplink transmission duration. The precondition for reporting PHR on an unlicensed carrier is that the UE performs LBT successfully before scheduled PUSCH transmission. Wherein, the physical layer DCI signaling comprises: UE-specific DCI signaling (e.g., format 0/4 signaling), and/or common DCI signaling (e.g., format 1C), and/or group DCI signaling (e.g., format 3/3A), and/or DL grant (e.g., format 1A/2B/2C).

Similarly, when the UE is continuously scheduled with multiple subframes on the authorized carrier, the UE may report the PHR on multiple PUSCH subframes, or the UE may report the PHR on a specific PUSCH subframe on multiple PUSCH subframes (for example, in multiple continuous scheduling cases, the scheduling subframe index is even, or the subframe index is odd, or the subframe index is even, or once the reporting on the PUSCH is successful, the PHR is not reported on the corresponding subsequent scheduling subframe index, or the subframe index is odd, or the reporting is continued), and/or once the reporting on the PUSCH is successful, the PHR is not reported on the multiple scheduling subframes of the UE within the uplink transmission duration.

The PHR may not be reported according to the PUSCH rule specified in the existing protocol, for example, the PHR may be reported by being carried in UCI, or in CSI, or in PRACH, or in DM-RS. Wherein, the UCI may be in PUCCH or PUSCH. This may modify the format of PHR reporting to some extent.

In addition, the reporting mode of the power headroom report of SRS transmission includes: reporting a periodic power headroom report; or reporting the event-triggered power headroom report; or, the physical layer DCI signaling triggers the reporting of the power headroom report; or, implicitly triggering power headroom report reporting; or, reporting the power headroom report in a mixed mode of periodic and event triggering; or, reporting the power headroom report by a mixed mode of a periodic trigger mode and an implicit trigger mode; or reporting the power headroom report by mixing a periodic mode and a physical layer signaling triggering mode.

The reporting period of the power headroom report includes: 1ms,2ms,3ms,4ms,5ms,6ms,7ms,8ms,9ms,10ms,20ms,50ms,100ms,200ms,500ms,1000ms, infinity.

For reporting the event-triggered power headroom report, the reporting of the power headroom report is triggered within a certain time or when the change of the path loss reaches a preset threshold value within a period time. And/or, dynamically triggering power headroom report reporting through physical layer DCI signaling.

For the implicit triggering of the reporting of the power headroom report, the reporting of the power headroom report is triggered after the downlink transmission burst is finished; or, the uplink transmission burst starts to trigger the reporting of the power headroom report; or, the uplink transmission burst has a PUSCH (physical uplink shared channel) of the UE triggering the reporting of the power headroom report.

For reporting the power headroom report in a mixed manner of cycle and event triggering, the cycle for reporting the power headroom report is effective only when event triggering exists. The event may trigger the phr to report once at a periodic point, or report multiple phr.

For reporting the power headroom report in a mixed manner of a periodic manner and an implicit manner, the reporting period refers to that the period for reporting the power headroom report takes effect after the end of the downlink transmission burst, or the start of the uplink transmission burst, or the uplink transmission burst has the PUSCH of the UE.

For reporting the power headroom report by combining the period and the physical layer DCI signaling triggering mode, the period for reporting the power headroom report is triggered by the physical layer DCI signaling and then takes effect.

Triggering the reporting of the power headroom report through the physical layer DCI signaling refers to determining the time domain position of the reporting of the power headroom report according to a specific timing relationship and/or indicating the time domain position of the reporting of the power headroom report through the triggering of the physical layer DCI signaling. Wherein the specific timing relationship comprises: n + k, n is a subframe for sending the physical layer DCI signaling, and k can be configured through the physical layer DCI signaling. Preferably, k is a positive integer of 1 or more, or 4 or more. k may be 1,2,3,4,5,6,7,8.

And reporting the time domain position of the power headroom, and dynamically indicating the DCI signaling of the physical layer. Or reporting the time domain position of the power headroom as a first scheduled PUSCH subframe after the downlink transmission burst. Or after the downlink transmission burst, reading through at least one of subframes corresponding to subframes with even and/or odd subframe indexes in a plurality of PUSCH subframes scheduled continuously. Or after the downlink transmission burst, and/or specific one or more continuous or discrete scheduled PUSCH subframes in the uplink transmission burst. Or, a scheduled PUSCH subframe of at least one of a single or multiple licensed or unlicensed carriers. Or, a time window for reporting the power headroom. The time window for reporting the power headroom, and/or the offset in the time window for reporting the power headroom, and/or the starting time domain resource position in the time window for reporting the power headroom, and/or the interval between the time domain resources in the time window for reporting the power headroom, and/or the number of time domains in the time window for reporting the power headroom can be configured by a high layer RRC signaling, or configured by a physical layer DCI signaling, or agreed in advance by the base station and the UE. In addition, the time window related parameters can be effective after the downlink transmission burst or in the uplink transmission burst.

The time window for reporting the power headroom may be located in the authorized carrier or the unauthorized carrier. Further, the time window for reporting the power headroom may occur periodically, or may be dynamically notified or triggered through physical layer DCI signaling.

The time domain resources used for reporting the power headroom within the time window for reporting the power headroom may be continuous in the time domain or discrete.

Wherein, the time domain resource for reporting the power headroom in the time window for reporting the power headroom is determined by at least one of the following parameters: reporting the time domain offset and/or the interval and/or the time domain resource size and/or the number of the time domain resources in the time window of the power headroom.

Optionally, the power headroom report needs to perform an LBT mechanism before reporting time domain resources of the power headroom report in the unlicensed carrier. If the UE successfully performs LBT, a power headroom report is reported on the time domain resources. Otherwise, the report is abandoned.

Optionally, LBT performed for reporting power headroom report is related to LBT priority level. Alternatively, 25us of Cat2 or, alternatively, LBT method using DRS.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention or portions thereof contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes several instructions for enabling a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the method of the embodiments of the present invention.

Apparatus embodiment

In this embodiment, a power control apparatus and a user equipment UE are also provided, where the apparatus is used to implement the foregoing embodiments and preferred embodiments, and details of which have been already described are not repeated. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 3 is a block diagram of a power control apparatus according to an embodiment of the present invention, as shown in fig. 3, the apparatus including: a first determining module 32 and a reporting module 34, which are described below. According to another embodiment of the present invention, there is provided a power control apparatus including: a first determining module, configured to determine a power headroom of a predetermined signal or a predetermined channel transmitted by a user equipment UE on a predetermined subframe on an unlicensed carrier; and the reporting module is used for reporting the power allowance on the preset physical uplink resource according to a preset reporting mode.

Optionally, the reporting of the power headroom includes at least one of: reporting the power headroom periodically; reporting the power margin in an event triggering manner; triggering and reporting the power allowance by a physical layer Downlink Control Information (DCI) signaling; reporting the power headroom in an implicit mode; reporting the power margin in a mode of mixing periodicity and event trigger; reporting the power margin in a mode of mixing a periodic mode and an implicit mode; reporting the power allowance in a mode of mixing the periodic DCI signaling and the physical layer DCI signaling.

Optionally, reporting the power headroom in an event trigger manner includes at least one of: and under the condition that the change of the path loss reaches a preset threshold value within preset time, triggering and reporting the power allowance.

Optionally, the dynamically triggering, by a physical layer DCI signaling, the power headroom reporting includes at least one of: a field for indicating triggering of power headroom reporting is carried in a physical layer DCI signaling; determining a timing relation value of a time domain subframe or a candidate time domain subframe of the reported power margin; a field of a time domain subframe or a candidate time domain subframe for indicating a reporting power headroom; and triggering the power headroom to carry out one-time reporting or multiple times of reporting by the DCI signaling of the physical layer.

Fig. 4 is a block diagram of a preferred structure of a power control device according to an embodiment of the present invention, as shown in fig. 4, the device includes, in addition to all the modules shown in fig. 3: a second determination module 42, which is described below.

A second determining module 42, connected to the reporting module 34, configured to determine a time domain position for reporting the power headroom before reporting the power headroom on the predetermined physical uplink resource.

Optionally, determining, by a physical layer DCI signaling, a time domain position for reporting a power headroom includes one of: sending a physical layer DCI signaling triggering power headroom report on a subframe n, and determining a time domain subframe position or a candidate time domain subframe position reported by the power headroom according to a preset timing relation; or, determining the time domain subframe position or the candidate time domain subframe position reported by the power headroom through a field which is carried in a physical layer DCI signaling and is used for indicating the time domain subframe position or the candidate time domain subframe position reported by the power headroom; triggering power headroom reporting through a first physical layer DCI signaling, indicating a time domain subframe position or a candidate time domain subframe position of the power headroom reporting through a second physical layer DCI signaling, and determining the time domain subframe position or the candidate time domain subframe position of the power headroom reporting; indicating a time domain subframe position or a candidate time domain subframe position reported by the power headroom through a first physical layer DCI signaling, triggering the time domain subframe position or the candidate time domain subframe position reported by the power headroom to take effect through a second physical layer DCI signaling, and/or triggering the power headroom reporting for one time at the time domain subframe position or the candidate time domain subframe position, or reporting the power headroom for multiple times; and indicating the size of a time window for reporting the power headroom through the physical layer DCI signaling, the offset in the time window and the interval parameter in the time window to determine the position of a time domain subframe reported by the power headroom or the position of a candidate time domain subframe, wherein the starting point of the time window reported by the power headroom is notified through the physical layer DCI signaling or determined according to a preset timing relationship.

Optionally, determining a time domain position for reporting the power headroom through a higher layer RRC signaling includes: determining the time domain position reported by the power headroom through at least one of the following parameters: reporting the time window length of the power margin; reporting the initial position of a time window of the power allowance; reporting the offset in the time window of the power allowance; reporting a time domain resource interval in a time window of the power allowance; reporting the number of time domain resources in a time window of the power allowance; reporting a time domain resource pattern of the power headroom; reporting the period and the offset of the power headroom; wherein the parameters are configured by RRC signaling.

Optionally, determining the time domain position reported by the power headroom by a mode agreed in advance by the base station and the UE includes: after downlink transmission burst, a first PUSCH subframe scheduled by the UE; after the downlink transmission burst, at least one subframe corresponding to the subframe index number of an even or odd subframe in a plurality of scheduled continuous PUSCH subframes of the UE; one or more continuous PUSCH subframes scheduled by the UE after the downlink transmission burst; one or more continuous PUSCH subframes scheduled by the UE in the uplink transmission burst; in uplink transmission burst, UE is scheduled to be a first PUSCH subframe; in the uplink transmission burst, at least one of subframes corresponding to subframes with even or odd index numbers in a plurality of scheduled continuous PUSCH subframes of the UE; a scheduled PUSCH subframe for the UE.

Optionally, the time domain position of the reported power headroom in the time window is continuous in the time domain or discrete; or, the time domain resource for reporting the power headroom within the time window for reporting the power headroom is determined by at least one of the following parameters: reporting the time domain offset and/or the interval and/or the time domain resource size and/or the number of the time domain resources in the time window of the power headroom.

Fig. 5 is a block diagram of a preferred structure of a power control apparatus according to an embodiment of the present invention, and as shown in fig. 5, the apparatus includes, in addition to all modules shown in fig. 4: the module 52 is executed, as will be explained below.

An executing module 52, connected to the second determining module 42 and the reporting module 34, configured to execute a listen before talk LBT mechanism before the determined time domain position after determining the time-frequency position for reporting the power headroom; a reporting module 34, configured to report the power headroom at the time domain position when the LBT mechanism is successfully executed.

Fig. 6 is a block diagram of a preferred structure of the first determining module 32 in the power control apparatus according to the embodiment of the present invention, and as shown in fig. 6, the first determining module 32 includes a first determining unit 62 and a second determining unit 64, and the first determining module 32 is explained below.

A first determining unit 62, configured to determine, when the predetermined signal is that the SRS and the PUSCH are not transmitted, power at which the UE transmits the SRS and the PUSCH on the predetermined subframe by modifying a power calculation formula of the UE transmitting the SRS and the physical uplink shared channel SRS and PUSCH on the predetermined subframe; a second determining unit 64, connected to the first determining unit 62, for determining a power margin for the UE to transmit the SRS and the PUSCH on the predetermined subframe according to the determined transmission power for the UE to transmit the SRS and the PUSCH on the predetermined subframe; the power calculation formula of the sounding reference signal and the physical uplink shared channel (SRS) and the Physical Uplink Shared Channel (PUSCH) sent by the UE on the preset subframe is as follows: p _SRS,c (i)＝min{P _CMAX,c (i),P _{SRS_OFFSET,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i)}。

Fig. 7 is a first block diagram of a preferred structure of the first determining unit 62 in the first determining module 32 in the power control apparatus according to the embodiment of the present invention, as shown in fig. 7, the first determining unit 62 includes: a first modification subunit 72, which first modification subunit 72 is described below.

A first modifying subunit 72, configured to modify a formula of transmit power for the UE to transmit the SRS and the PUSCH on a predetermined subframe, including: and modifying the value range of m: from [0,1]To [0,2]Wherein, newly introduced m =2 represents SRS without PUSCH; and modifying the value range of j: from [0,2]To [0,3]Wherein, newly introduced j =3 represents SRS without PUSCH, or j =1 represents SRS without PUSCH; given parameter P _{SRS_OFFSET,c} (m) new meanings: the power offset of the SRS without PUSCH transmitted at this time and the power offset of the SRS without PUSCH transmitted at the last time are shown; alternatively, transmitting the SRS without PUSCH corresponds toLast time PUSCH transmission power offset; or, transmitting the SRS without PUSCH with respect to a power offset of a PUSCH transmitted within a period of time; or, transmitting power offset of the SRS with PUSCH relative to the SRS with PUSCH; endowing P with _{O_PUSCH,c} (j) New meaning, i.e. assigning the parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) New meaning of P _{O_NOMINAL_PUSCH,c} (j) Indicating normal SRS and/or PUSCH receiving or demodulating, and the expected SRS and/or PUSCH transmitting power level of the base station side; p _{O_UE_PUSCH,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_PUSCH,c} (j) A power bias of (d); wherein, P _{O_PUSCH,c} (j) Including a parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) (ii) a Modifying the parameter alpha _c (j) And configuring a parameter alpha _c (j) Value set of (2): i.e., j ranges from [0,2]To [0,3]And when j =3, α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1}.

Fig. 8 is a block diagram of a preferred structure of the first determining unit 62 in the first determining module 32 in the power control apparatus according to the embodiment of the present invention, and as shown in fig. 8, the first determining unit 62 includes: the second modification sub-unit 82, it should be noted that the first determining unit 62 may further include a combination of the first modification sub-unit 72 and the second modification sub-unit 82. The second modification subunit 82 is described below with reference to fig. 6 as an example.

A second modifying subunit 82, configured to modify a formula of transmit power for the UE to transmit the SRS and the PUSCH on a predetermined subframe, where the formula includes: introducing a new parameter R on the basis of a power calculation formula of an SRS and a PUSCH _c (i) (ii) a Wherein the parameter R _c (i) When the value is not 0dB, the situation that the UE transmits the SRS on the ith subframe of the cell c without the PUSCH is represented; parameter R _c (i) And when the value is 0dB, the UE transmits the SRS and the PUSCH on the ith subframe of the cell c.

Fig. 9 is a block diagram of a preferred structure of the first determining unit 62 in the first determining module 32 in the power control apparatus according to the embodiment of the present invention, and as shown in fig. 9, the first determining unit 62 includes: the third modifying subunit 92, it should be noted that the first determining unit 62 may further include any combination of the first modifying subunit 72, the second modifying subunit 82, and the third modifying subunit 92. The third modification subunit 92 is described below by taking fig. 6 as an example.

A third modifying subunit 92, configured to modify a formula of transmit power for the UE to transmit the SRS and the PUSCH on a predetermined subframe, where the formula includes: introducing a new parameter q on the basis of a power calculation formula of an SRS and a PUSCH, wherein q =0 represents the SRS and PUSCH condition, and q =1 represents the SRS and PUSCH condition; alternatively, q =1 indicates the case of SRS and PUSCH, and q =0 indicates the case of SRS and PUSCH being absent.

Fig. 10 is a block diagram of a preferred structure of the first determining unit 62 in the first determining module 32 in the power control apparatus according to the embodiment of the present invention, as shown in fig. 10, the first determining unit 62 includes: the fourth modification subunit 102 is to be noted that the first determining unit 62 may further include any combination of the first modification subunit 72, the second modification subunit 82, the third modification subunit 92, and the fourth modification subunit 102. The fourth modification subunit 102 is described below with reference to fig. 6 as an example.

A fourth modification subunit 102, configured to modify a formula of transmit power for the UE to transmit the SRS and the PUSCH on a predetermined subframe, where the formula includes: based on the power calculation formula of SRS and PUSCH, by introducing a new parameter P _c (i) In place of parameter P _{SRS_OFFSET,c} (m); wherein, P _c (i) Indicating that the UE does not transmit power of the SRS and the PUSCH in the ith subframe of the cell c relative to the power offset of transmitting the PUSCH and/or the power of the SRS and the PUSCH, or indicating a power adjustment amount; by introducing new parameters P _{O_SRS,c} (j) Replacement parameter P _{O_PUSCH,c} (j) (ii) a Wherein, P _{O_SRS,c} (j) Comprising P _{O_NOMINAL_SRS,c} (j) And P _{O_UE_SRS,c} (j)；P _{O_NOMINAL_SRS,c} (j) Indicating the normal SRS and/or PUSCH reception or demodulation, the expected SRS and/or PUSCH transmission power level, P, at the base station side _{O_UE_SRS,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_SRS,c} (j) Power bias of (3).

Fig. 11 is a block diagram of a preferred structure of the first determining unit 62 in the first determining module 32 in the power control device according to the embodiment of the present invention, and as shown in fig. 11, the first determining unit 62 includes: the fifth modification subunit 112 is to be noted that the first determining unit 62 may further include any combination of the first modification subunit 72, the second modification subunit 82, the third modification subunit 92, the fourth modification subunit 102, and the fifth modification subunit 112. The fifth modification subunit 112 is described below with reference to fig. 6 as an example.

A fifth modifying subunit 112, configured to modify a formula of transmission power for the UE to transmit the SRS and the PUSCH on the predetermined subframe, including: by introducing a new parameter f' _c (i) Replacement parameter f _c (i) Wherein, f' _c (i) Transmitting power adjustment quantity of the situation that the SRS is not transmitted in the ith subframe of the cell c and the PUSCH; by introducing a new parameter P' _CMAX,c (i) Replacement parameter P _CMAX,c (i) Wherein, P' _CMAX,c (i)＝P _CMAX,c (i) Plus or minus a first adjustment quantity, the first adjustment quantity being a real number.

Optionally, the second determining unit 64 is further configured to determine a power headroom of the UE for transmitting the SRS and the PUSCH on the predetermined subframe by the following formula: PH value _c (i)＝P _CMAX,c (i) -P, or PH _c (i)＝P' _CMAX,c (i) -P; wherein the pH is _c (i) And P is a second term in parentheses in the SRS transmission power calculation formula, and is used for transmitting the power margin of a predetermined signal on the ith subframe of the cell c by the UE.

Fig. 12 is a block diagram six of a preferred structure of the first determining unit 62 in the first determining module 32 in the power control apparatus according to the embodiment of the present invention, and as shown in fig. 12, the first determining unit 62 includes: the acquiring subunit 122, it should be noted that the acquiring subunit 122 may be used in any first determining unit 62 in fig. 6 to 11, and the first determining unit 62 in fig. 6 is taken as an example in fig. 12 for description.

An obtaining subunit 122, configured to obtain a parameter for the determined transmission power of the UE for transmitting the SRS on the predetermined subframe and not for transmitting the PUSCH by at least one of: controlling a static or semi-static configuration mode of RRC signaling through a high-level radio link; the method is realized by a DCI signaling mode.

Fig. 13 is a block diagram of a user equipment UE 10 according to an embodiment of the present invention, and as shown in fig. 13, the user equipment UE 10 includes any one of the power control devices 132 described above.

It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.

The embodiment of the invention also provides a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:

S1, determining a power margin of a predetermined signal or a predetermined channel transmitted by User Equipment (UE) on a predetermined subframe on an unlicensed carrier;

and S2, reporting the power allowance on the preset physical uplink resource according to a preset reporting mode.

Optionally, the storage medium is further arranged to store program code for performing the steps of:

s1, reporting the power headroom mode, wherein the reporting mode comprises at least one of the following modes: reporting the power headroom periodically; reporting the power headroom in an event triggering manner; triggering and reporting the power allowance by a physical layer Downlink Control Information (DCI) signaling; reporting the power margin in an implicit mode; reporting the power margin in a mode of mixing periodicity and event trigger; reporting the power margin in a mode of mixing a periodic mode and an implicit mode; and reporting the power margin in a mode of mixing the periodic DCI signaling and the physical layer DCI signaling.

s1, the reporting period of the power headroom comprises at least one of the following: 1ms,2ms,3ms,4ms,5ms,6ms,7ms,8ms,9ms,10ms,20ms,50ms,100ms,200ms,500ms,1000ms.

S1, reporting the power headroom according to an event triggering mode, wherein the reporting of the power headroom comprises at least one of the following steps: and under the condition that the change of the path loss reaches a preset threshold value within preset time, triggering and reporting the power allowance.

s1, dynamically triggering power headroom report through a physical layer DCI signaling, wherein the reporting includes at least one of the following: a field for indicating triggering of power headroom reporting is carried in a physical layer DCI signaling; determining a timing relation value of a time domain subframe or a candidate time domain subframe of reporting power headroom; a field of a time domain subframe or a candidate time domain subframe for indicating a reporting power headroom; and triggering the power headroom to carry out one-time reporting or multiple times of reporting by the DCI signaling of the physical layer.

s1, reporting the power headroom in an implicit mode, wherein the power headroom comprises at least one of the following components: triggering and reporting the power margin through the ending time of downlink transmission burst; triggering and reporting power headroom through the starting moment of uplink transmission burst; and triggering the reporting power margin when the Physical Uplink Shared Channel (PUSCH) of the UE exists in the uplink transmission burst.

s1, reporting the power headroom in a mode of mixing periodicity and event trigger, comprising the following steps: the period of reporting the power headroom is effective only under the condition that the reporting of the power headroom is triggered by an event; and reporting the power headroom at one time or multiple times by the event trigger at a periodic point.

s1, reporting the power headroom in a mode of mixing a periodic mode and an implicit mode, wherein the method comprises the following steps: reporting a period of power headroom, wherein the period is only after the uplink transmission burst is finished, or the uplink transmission burst is started, or the uplink transmission burst takes effect; and one or more Physical Uplink Shared Channels (PUSCHs) of the UE exist in the uplink transmission burst.

s1, reporting the power margin in a mode of mixing a periodicity DCI signaling with a physical layer DCI signaling, comprising the following steps: and the period of reporting the power headroom is triggered by a DCI signaling of a physical layer and then takes effect after the reporting of the power headroom is carried out.

S1, reserving physical uplink resources, wherein the physical uplink resources comprise one of the following: a Physical Uplink Shared Channel (PUSCH); and a Physical Uplink Control Channel (PUCCH).

s1, the predetermined physical uplink resource is located in an unauthorized carrier or an authorized carrier.

the method comprises the following steps that S1, before reporting the power allowance on the preset physical uplink resource, the method further comprises the following steps: and determining a time domain position for reporting the power headroom.

s1, a mode of determining a time domain position reported by a power headroom comprises the following steps: a DCI signaling configuration mode is carried out through physical layer downlink control information; controlling the RRC signaling configuration mode through a high-level radio link; the base station and the UE have a predetermined mode.

s1, determining a time domain position reported by a power headroom through a physical layer DCI signaling, wherein the time domain position comprises one of the following steps: sending a physical layer DCI signaling triggering power headroom report on a subframe n, and determining a time domain subframe position or a candidate time domain subframe position reported by the power headroom according to a preset timing relation; or, determining the time domain subframe position or the candidate time domain subframe position reported by the power headroom through a field which is carried in a physical layer DCI signaling and is used for indicating the time domain subframe position or the candidate time domain subframe position reported by the power headroom; triggering power headroom reporting through a first physical layer DCI signaling, indicating a time domain subframe position or a candidate time domain subframe position of the power headroom reporting through a second physical layer DCI signaling, and determining the time domain subframe position or the candidate time domain subframe position of the power headroom reporting; indicating a time domain subframe position or a candidate time domain subframe position of power headroom reporting through a first physical layer DCI signaling, triggering the time domain subframe position or the candidate time domain subframe position of the power headroom reporting to take effect through a second physical layer DCI signaling, and/or triggering the power headroom reporting for one time or multiple times on the time domain subframe position or the candidate time domain subframe position; and indicating the size of a time window for reporting the power headroom through the physical layer DCI signaling, the offset in the time window and the interval parameter in the time window to determine the position of a time domain subframe reported by the power headroom or the position of a candidate time domain subframe, wherein the starting point of the time window reported by the power headroom is notified through the physical layer DCI signaling or determined according to a preset timing relationship.

s1, predetermining a timing relationship, comprising: n + k, where n is a subframe for transmitting a physical layer DCI signaling, and k is a positive integer greater than or equal to 1 or greater than or equal to 4.

s1, determining a time domain position reported by power headroom through a high-level RRC signaling, comprising the following steps: determining the time domain position reported by the power headroom through at least one of the following parameters: reporting the time window length of the power margin; reporting the initial position of the time window of the power margin; reporting the offset in the time window of the power allowance; reporting a time domain resource interval in a time window of the power allowance; reporting the number of time domain resources in a time window of the power allowance; reporting a time domain resource pattern of the power headroom; reporting the period and the offset of the power headroom; wherein the parameters are configured by RRC signaling.

s1, determining a time domain position reported by power headroom by a mode appointed by a base station and UE in advance, comprising the following steps: after downlink transmission burst, a first PUSCH subframe scheduled by the UE; after the downlink transmission burst, at least one subframe corresponding to the subframe index number of an even or odd subframe in a plurality of scheduled continuous PUSCH subframes of the UE; one or more continuous PUSCH subframes scheduled by the UE after the downlink transmission burst; one or more continuous PUSCH subframes scheduled by the UE in the uplink transmission burst; in uplink transmission burst, UE is scheduled to be a first PUSCH subframe; in the uplink transmission burst, at least one of subframes corresponding to subframes with even or odd index numbers in a plurality of scheduled continuous PUSCH subframes of the UE; a scheduled PUSCH subframe for the UE.

s1, reporting a time domain position of power headroom, comprising: the time domain location is located on a licensed carrier, or alternatively, an unlicensed carrier.

s1, the time domain position of the reported power margin in a time window is continuous or discrete on the time domain; or, the time domain resource for reporting the power headroom within the time window for reporting the power headroom is determined by at least one of the following parameters: reporting the time domain offset and/or the interval and/or the time domain resource size and/or the number of the time domain resources in the time window of the power headroom.

the method comprises the following steps that S1, after the time-frequency position used for reporting the power margin is determined, the method further comprises the following steps: performing a listen before talk, LBT, mechanism prior to the determined time domain location; and reporting the power headroom at the time domain position under the condition that the LBT mechanism is successfully executed.

S1, the LBT mechanism corresponds to a predetermined LBT priority level.

s1, a predetermined signal or a predetermined channel, comprising one of: a Physical Uplink Shared Channel (PUSCH); sounding reference signals and a physical uplink shared channel SRS with PUSCH; sounding reference signals do not share a channel SRS without PUSCH; and a Physical Uplink Control Channel (PUCCH).

determining a power headroom of a UE for transmitting a predetermined signal on a predetermined subframe, comprising: when the predetermined signal is that the SRS is not transmitted with the PUSCH, the method for calculating the power headroom comprises the following steps:

s1, determining the power of sending SRS and not sending PUSCH by UE on a preset subframe in a mode of modifying a power calculation formula of sending SRS and PUSCH on the preset subframe by the UE;

s2, determining the power margin of the SRS not transmitted by the UE on the predetermined subframe and the PUSCH according to the determined transmission power of the SRS not transmitted by the UE on the predetermined subframe and the transmission power of the PUSCH not transmitted by the UE on the predetermined subframe; the power calculation formula of the sounding reference signal and the physical uplink shared channel (SRS) and the Physical Uplink Shared Channel (PUSCH) sent by the UE on the preset subframe is as follows: p is _SRS,c (i)＝min{P _CMAX,c (i),P _{SRS_OFFSET,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i)}。

s1, modifying a formula of transmitting power of SRS and PUSCH transmitted by UE on a preset subframe, comprising: modifying the value range of m: from [0,1]To [0,2]Wherein, newly introduced m =2 represents SRS without PUSCH; and modifying the value range of j: from [0,2]To [0,3]Wherein, newly introduced j =3 represents SRS without PUSCH, or j =1 represents SRS without PUSCH; given parameter P _{SRS_OFFSET,c} (m) new meanings: the power offset of the SRS without PUSCH transmitted at this time and the power offset of the SRS without PUSCH transmitted at the last time are shown; or, transmitting power offset of the SRS without PUSCH relative to the PUSCH transmitted last time; or, transmitting the SRS without PUSCH with respect to a power offset of a PUSCH transmitted within a period of time; or, the power offset of the transmitted SRS with PUSCH relative to the transmitted SRS with PUSCH; impartation of P _{O_PUSCH,c} (j) New meaning, i.e. assigning the parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) New meaning of P _{O_NOMINAL_PUSCH,c} (j) Indicating normal SRS and/or PUSCH receiving or demodulating, and the expected SRS and/or PUSCH transmitting power level of the base station side; p _{O_UE_PUSCH,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_PUSCH,c} (j) Power bias of (d); wherein, P _{O_PUSCH,c} (j) Including a parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) (ii) a Modifying the parameter alpha _c (j) And configuring a parameter alpha _c (j) Value set of (2): i.e., j ranges from [0,2]To [0,3]And when j =3, α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1}.

s1, introducing a new parameter R on the basis of a power calculation formula of an SRS and a PUSCH _c (i) (ii) a Wherein the parameter R _c (i) When the value is not 0dB, the situation that the UE transmits the SRS on the ith subframe of the cell c without the PUSCH is represented; parameter R _c (i) And when the value is 0dB, the UE transmits the SRS and the PUSCH on the ith subframe of the cell c.

s1, introducing a new parameter q on the basis of a power calculation formula of an SRS and a PUSCH, wherein q =0 represents the SRS and PUSCH condition, and q =1 represents the SRS and PUSCH condition; alternatively, q =1 indicates the case of SRS and PUSCH, and q =0 indicates the case of SRS and PUSCH being absent.

s1, on the basis of a power calculation formula of SRS and PUSCH, introducing a new parameter P _c (i) In place of parameter P _{SRS_OFFSET,c} (m); wherein, P _c (i) Indicating that the UE transmits the SRS in the ith subframe of the cell c and not the power of the PUSCH is offset relative to the power for transmitting the PUSCH and/or the SRS and the PUSCH, or indicating a power adjustment amount; by introducing new parameters P _{O_SRS,c} (j) Replacement parameter P _{O_PUSCH,c} (j) (ii) a Wherein, P _{O_SRS,c} (j) Including P _{O_NOMINAL_SRS,c} (j) And P _{O_UE_SRS,c} (j)；P _{O_NOMINAL_SRS,c} (j) Indicating the normal SRS and/or PUSCH reception or demodulation, the expected SRS and/or PUSCH transmission power level, P, at the base station side _{O_UE_SRS,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_SRS,c} (j) Power bias of (3).

s1, by introducing a new parameter f' _c (i) Replacement parameter f _c (i) Wherein, f' _c (i) Transmitting power adjustment quantity under the condition that the SRS and the PUSCH are not transmitted in the ith subframe of the cell c; by introducing a new parameter P' _CMAX,c (i) Replacement parameter P _CMAX,c (i) Wherein, P' _CMAX,c (i)＝P _CMAX,c (i) Plus or minus a first adjustment quantity, the first adjustment quantity being a real number.

S1，f _c (i) The method comprises the steps of introducing a field for indicating TPC command for no-Scheduled PUSCH in physical layer DCI signaling to obtain the physical layer DCI signaling.

S1, according to the determined transmitting power of the UE for transmitting the SRS and not the PUSCH on the preset subframe, determining the power margin of the UE for transmitting the SRS and not the PUSCH on the preset subframe comprises the following steps: PH value _c (i)＝P _CMAX,c (i) -P, or PH _c (i)＝P' _CMAX,c (i) -P; wherein the pH is _c (i) And P is a second term in brackets in the SRS transmission power calculation formula, and is used for transmitting the power margin of a predetermined signal on the ith subframe of the cell c by the UE.

s1, acquiring parameters of transmission power used for determining that the UE transmits SRS and not transmits PUSCH on a preset subframe by at least one of the following modes: controlling a static or semi-static configuration mode of RRC signaling through a high-level radio link; the method is realized by a DCI signaling mode.

s1, the physical layer DCI signaling comprises at least one of the following: UE (user equipment) is provided with a DCI signaling, and DCI format 0/4 is adopted; common DCI signaling, DCI format 1C is adopted; group downlink control information Group DCI signaling adopts DCI format 3/3A; downlink control information DL DCI signaling adopts DCI format 1A/2B/2C; new DCI signaling.

Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: determining a power headroom of a predetermined signal or a predetermined channel transmitted by a User Equipment (UE) on a predetermined subframe on an unlicensed carrier; and reporting the power allowance on the preset physical uplink resource according to a preset reporting mode.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the method for reporting the power headroom includes at least one of the following steps: reporting the power headroom periodically; reporting the power margin in an event triggering manner; triggering and reporting the power allowance by a physical layer Downlink Control Information (DCI) signaling; reporting the power margin in an implicit mode; reporting the power margin in a mode of mixing periodicity and event trigger; reporting the power margin in a mode of mixing a periodic mode and an implicit mode; and reporting the power margin in a mode of mixing the periodic DCI signaling and the physical layer DCI signaling.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the reporting period of the power headroom comprises at least one of the following: 1ms,2ms,3ms,4ms,5ms,6ms,7ms,8ms,9ms,10ms,20ms,50ms,100ms,200ms,500ms,1000ms.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: reporting the power headroom in an event triggering manner includes at least one of the following: and under the condition that the change of the path loss reaches a preset threshold value within preset time, triggering and reporting the power allowance.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: dynamically triggering power headroom reporting through a physical layer DCI signaling, wherein the reporting comprises at least one of the following steps: a field for indicating triggering of power headroom reporting is carried in a physical layer DCI signaling; determining a timing relation value of a time domain subframe or a candidate time domain subframe of reporting power headroom; a field of a time domain subframe or a candidate time domain subframe for indicating a reporting power headroom; and triggering the power headroom to carry out one-time reporting or multiple times of reporting by the DCI signaling of the physical layer.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: reporting the power headroom in an implicit mode, wherein the reporting of the power headroom comprises at least one of the following steps: triggering and reporting the power margin through the ending time of downlink transmission burst; triggering and reporting power headroom through the starting moment of uplink transmission burst; and triggering the reporting power margin when the Physical Uplink Shared Channel (PUSCH) of the UE exists in the uplink transmission burst.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: reporting the power headroom in a mode of mixing periodicity and event trigger, comprising: the period of reporting the power headroom takes effect only under the condition that the reporting of the power headroom is triggered by an event; and reporting the power headroom at one time or multiple times by the event trigger at a periodic point.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: reporting the power headroom in a mode of mixing a periodic mode and an implicit mode, wherein the method comprises the following steps: reporting a period of power headroom, wherein the period is only after the uplink transmission burst is finished, or the uplink transmission burst is started, or the uplink transmission burst takes effect; and one or more Physical Uplink Shared Channels (PUSCHs) of the UE exist in the uplink transmission burst.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: reporting the power headroom in a mode of mixing a periodical DCI signaling with a physical layer DCI signaling, wherein the method comprises the following steps: and the period of reporting the power headroom is triggered by a DCI signaling of a physical layer and then takes effect after the reporting of the power headroom.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the predetermined physical uplink resource includes one of: a Physical Uplink Shared Channel (PUSCH); and a Physical Uplink Control Channel (PUCCH).

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the predetermined physical uplink resource is located in an unlicensed carrier or a licensed carrier.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: before reporting the power margin on the predetermined physical uplink resource, the method further includes: and determining a time domain position for reporting the power headroom.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the method for determining the time domain position reported by the power headroom comprises the following steps: a DCI signaling configuration mode is carried out through physical layer downlink control information; controlling the RRC signaling configuration mode through a high-level radio link; the base station and the UE have a predetermined mode.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: determining a time domain position reported by a power headroom through a physical layer DCI signaling, wherein the time domain position comprises one of the following positions: sending a physical layer DCI signaling triggering power headroom report on a subframe n, and determining a time domain subframe position or a candidate time domain subframe position reported by the power headroom according to a preset timing relation; or, determining the time domain subframe position or the candidate time domain subframe position reported by the power headroom through a field which is carried in a physical layer DCI signaling and is used for indicating the time domain subframe position or the candidate time domain subframe position reported by the power headroom; triggering power headroom reporting through a first physical layer DCI signaling, indicating a time domain subframe position or a candidate time domain subframe position of the power headroom reporting through a second physical layer DCI signaling, and determining the time domain subframe position or the candidate time domain subframe position of the power headroom reporting; indicating a time domain subframe position or a candidate time domain subframe position reported by the power headroom through a first physical layer DCI signaling, triggering the time domain subframe position or the candidate time domain subframe position reported by the power headroom to take effect through a second physical layer DCI signaling, and/or triggering the power headroom reporting for one time at the time domain subframe position or the candidate time domain subframe position, or reporting the power headroom for multiple times; and indicating the size of a time window for reporting the power headroom through the physical layer DCI signaling, the offset in the time window and the interval parameter in the time window to determine the position of a time domain subframe reported by the power headroom or the position of a candidate time domain subframe, wherein the starting point of the time window reported by the power headroom is notified through the physical layer DCI signaling or determined according to a preset timing relationship.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: a predetermined timing relationship comprising: n + k, where n is a subframe for transmitting a physical layer DCI signaling, and k is a positive integer greater than or equal to 1 or greater than or equal to 4.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: determining the time domain position reported by the power headroom through a high-level RRC signaling comprises the following steps: determining the time domain position reported by the power headroom through at least one of the following parameters: reporting the time window length of the power margin; reporting the initial position of the time window of the power margin; reporting the offset in the time window of the power allowance; reporting a time domain resource interval in a time window of the power allowance; reporting the number of time domain resources in a time window of the power allowance; reporting a time domain resource pattern of the power headroom; reporting the period and the offset of the power headroom; wherein the parameters are configured by RRC signaling.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: determining a time domain position reported by a power headroom by a mode appointed by a base station and UE in advance, wherein the time domain position comprises the following steps: after downlink transmission burst, a first PUSCH subframe scheduled by the UE; after the downlink transmission burst, at least one subframe corresponding to the subframe index number of an even or odd subframe in a plurality of scheduled continuous PUSCH subframes of the UE; one or more continuous PUSCH subframes scheduled by the UE after the downlink transmission burst; one or more continuous PUSCH subframes scheduled by the UE in the uplink transmission burst; in uplink transmission burst, UE is scheduled to be a first PUSCH subframe; in the uplink transmission burst, at least one of subframes corresponding to subframes with even or odd index numbers in a plurality of scheduled continuous PUSCH subframes of the UE; a scheduled PUSCH subframe for the UE.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the time domain position reported by the power headroom comprises the following steps: the time domain location is located on a licensed carrier, or alternatively, an unlicensed carrier.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the time domain position of the reported power margin in the time window is continuous or discrete on the time domain; or, the time domain resource for reporting the power headroom within the time window for reporting the power headroom is determined by at least one of the following parameters: reporting the time domain offset and/or the interval and/or the time domain resource size and/or the number of the time domain resources in the time window of the power headroom.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: after determining the time-frequency position for reporting the power headroom, the method further comprises the following steps: performing a listen before talk, LBT, mechanism prior to the determined time domain location; and reporting the power headroom in the time domain position under the condition that the LBT mechanism is successfully executed.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the LBT mechanism corresponds to a predetermined LBT priority level.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: a predetermined signal or a predetermined channel comprising one of: a Physical Uplink Shared Channel (PUSCH); sounding reference signals and a physical uplink shared channel SRS with PUSCH; sounding reference signals and a physical uplink shared channel SRS without PUSCH; and a Physical Uplink Control Channel (PUCCH).

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: determining a power headroom of a UE for transmitting a predetermined signal on a predetermined subframe, comprising: when the predetermined signal is that the SRS is not transmitted with the PUSCH, the method for calculating the power headroom comprises the following steps: determining the power of the SRS not transmitted by the UE on the predetermined subframe and the power of the PUSCH not transmitted by the UE on the predetermined subframe in a manner of modifying a power calculation formula of the SRS transmitted by the UE on the predetermined subframe and the power calculation formula of the PUSCH transmitted by the physical uplink shared channel; determining the power margin of the SRS not transmitted by the UE on the predetermined subframe and the PUSCH according to the determined transmission power of the SRS not transmitted by the UE on the predetermined subframe and the transmission power of the PUSCH not transmitted by the UE on the predetermined subframe; the power calculation formula for UE to send sounding reference signals and SRS and PUSCH on a predetermined subframe is as follows: p _SRS,c (i)＝min{P _CMAX,c (i),P _{SRS_OFFSET,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i)}。

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: modifying a formula of transmitting power of the UE for transmitting the SRS and the PUSCH on a predetermined subframe, wherein the formula comprises the following steps: and modifying the value range of m: from [0,1]To [0,2]Wherein, newly introduced m =2 represents SRS without PUSCH; modifying the value range of j: from [0,2]To [0,3]Wherein, newly introduced j =3 represents SRS without PUSCH, or j =1 represents SRS without PUSCH; given parameter P _{SRS_OFFSET,c} (m) new meanings: the power offset of the SRS without PUSCH transmitted at this time and the power offset of the SRS without PUSCH transmitted at the last time are shown; or, transmitting power offset of the SRS without PUSCH relative to the PUSCH transmitted last time; or, transmitting the SRS without PUSCH with respect to a power offset of a PUSCH transmitted within a period of time; or, the power offset of the transmitted SRS with PUSCH relative to the transmitted SRS with PUSCH; impartation of P _{O_PUSCH,c} (j) New meaning, i.e. assigning the parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) New meaning of P _{O_NOMINAL_PUSCH,c} (j) Indicating normal SRS and/or PUSCH receiving or demodulating, and the expected SRS and/or PUSCH transmitting power level of the base station side; p _{O_UE_PUSCH,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_PUSCH,c} (j) Power bias of (d); wherein, P _{O_PUSCH,c} (j) Including a parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) (ii) a Modifying the parameter alpha _c (j) And configuring a parameter alpha _c (j) Value set of (2): i.e., j ranges from [0,2]To [0,3]And when j =3, α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1}.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: further comprising: introducing a new parameter R on the basis of a power calculation formula of an SRS and a PUSCH _c (i) (ii) a Wherein the parameter R _c (i) When the value is not 0dB, the situation that the UE transmits the SRS on the ith subframe of the cell c without the PUSCH is represented; parameter R _c (i) And when the value is 0dB, the UE transmits the SRS and the PUSCH on the ith subframe of the cell c.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: further comprising: introducing a new parameter q on the basis of a power calculation formula of an SRS and a PUSCH, wherein q =0 represents the SRS and PUSCH condition, and q =1 represents the SRS and PUSCH condition; alternatively, q =1 indicates the case of SRS and PUSCH, and q =0 indicates the case of SRS and PUSCH being absent.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: further comprising: based on the power calculation formula of SRS and PUSCH, by introducing a new parameter P _c (i) In place of parameter P _{SRS_OFFSET,c} (m); wherein, P _c (i) Indicating that the UE does not transmit power of the SRS and the PUSCH in the ith subframe of the cell c relative to the power offset of transmitting the PUSCH and/or the power of the SRS and the PUSCH, or indicating a power adjustment amount; by introducing new parameters P _{O_SRS,c} (j) Replacement parameter P _{O_PUSCH,c} (j) (ii) a Wherein, P _{O_SRS,c} (j) Including P _{O_NOMINAL_SRS,c} (j) And P _{O_UE_SRS,c} (j)；P _{O_NOMINAL_SRS,c} (j) Indicating the normal SRS and/or PUSCH reception or demodulation, the expected SRS and/or PUSCH transmission power level, P, at the base station side _{O_UE_SRS,c} (j) Indicating that UE transmits SRS and/or PUSCH relative to P _{O_NOMINAL_SRS,c} (j) Power bias of (3).

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: further comprising: by introducing a new parameter f' _c (i) Replacement parameter f _c (i) Wherein, f' _c (i) Transmitting power adjustment quantity of the situation that the SRS is not transmitted in the ith subframe of the cell c and the PUSCH; by introducing a new parameter P' _CMAX,c (i) Replacement parameter P _CMAX,c (i) Wherein, P' _CMAX,c (i)＝P _CMAX,c (i) Plus or minus a first adjustment quantity, the first adjustment quantity being a real number.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: f. of _c (i) The method comprises the steps of introducing a field for indicating TPC command for no-Scheduled PUSCH in physical layer DCI signaling to obtain the physical layer DCI signaling.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: according to the determined transmission power of the UE for transmitting the SRS and the PUSCH on the preset subframe, the step of determining the power margin of the UE for transmitting the SRS and the PUSCH on the preset subframe comprises the following steps: PH value _c (i)＝P _CMAX,c (i) -P, or PH _c (i)＝P' _CMAX,c (i)-P；

Wherein the pH is _c (i) And P is a second term in parentheses in the SRS transmission power calculation formula, and is used for transmitting the power margin of a predetermined signal on the ith subframe of the cell c by the UE.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: obtaining parameters for the determined transmission power of the UE for transmitting the SRS and the PUSCH on the predetermined subframe by at least one of: controlling a static or semi-static configuration mode of RRC signaling through a high-level radio link; the method is realized by a DCI signaling mode.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium: the physical layer DCI signaling includes at least one of: UE (user equipment) is specially provided with DCI signaling, and DCI format0/4 is adopted; common DCI signaling, DCI format 1C is adopted; group downlink control information Group DCI signaling adopts DCI format 3/3A; downlink control information DL DCI signaling adopts DCI format 1A/2B/2C; new DCI signaling.

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method of power control, comprising:

Determining a power headroom of a predetermined signal or a predetermined channel transmitted by a User Equipment (UE) on a predetermined subframe on an unlicensed carrier;

reporting the power headroom on a preset physical uplink resource according to a preset reporting mode;

wherein the predetermined manner for reporting the power headroom includes at least one of the following:

reporting the power headroom periodically;

reporting the power headroom by event triggering;

triggering and reporting the power allowance by a physical layer Downlink Control Information (DCI) signaling;

reporting the power headroom in an implicit mode;

reporting the power margin in a mode of mixing periodicity and event trigger;

reporting the power margin in a mode of mixing a periodic mode and an implicit mode;

reporting the power headroom in a mode of mixing a periodic DCI signaling with a physical layer DCI signaling;

reporting the power headroom in a mode of mixing periodicity and event trigger, wherein the reporting of the power headroom in the mode of mixing periodicity and event trigger comprises:

reporting the cycle of the power headroom, wherein the cycle of the power headroom reporting is effective only under the condition that the power headroom reporting is triggered by an event;

the event triggers the power headroom to be reported once at a periodic point, or to be reported for multiple times;

wherein the predetermined signal or the predetermined channel comprises one of:

A Physical Uplink Shared Channel (PUSCH);

sounding reference signals and a physical uplink shared channel SRS with PUSCH;

sounding reference signals and a physical uplink shared channel SRS without PUSCH;

a Physical Uplink Control Channel (PUCCH);

wherein determining a power headroom for the UE to transmit the predetermined signal on the predetermined subframe comprises:

when the predetermined signal is that the SRS is not transmitted with the PUSCH, the method for calculating the power headroom comprises the following steps:

determining the power of the SRS not transmitted by the UE on the predetermined subframe and the power of the PUSCH by modifying a power calculation formula of the SRS and the PUSCH transmitted by the UE on the predetermined subframe;

determining the power headroom of the UE for transmitting the SRS without the PUSCH on the predetermined subframe according to the determined transmission power of the UE for transmitting the SRS without the PUSCH on the predetermined subframe;

wherein, the power calculation formula of the UE for sending the sounding reference signal and the SRS and PUSCH on the predetermined subframe is as follows:

P _SRS,c (i)＝min{P _CMAX,c (i),P _{SRS_OFFSET,c} (m)+10log ₁₀ (M _SRS,c )+P _{O_PUSCH,c} (j)+α _c (j)·PL _c +f _c (i)}；

wherein, the P _CMAX,c (i) For the maximum transmission power of the terminal, P _{SRS_OFFSET,c} (M) is the power offset for transmitting SRS without PUSCH, M _SRS,c For SRS transmission bandwidth, the P _{O_PUSCH,c} (j) Desired SRS and/or PUSCH transmission power level at the base station side for normal SRS and/or PUSCH reception or demodulation, the alpha _c (j) Compensating the ratio and weight factor for path loss, the PL _c Measured level of path loss for the terminal, said f _c (i) Transmitting the power adjustment amount of the situation that the SRS is not transmitted with the PUSCH in the ith subframe of the cell;

wherein modifying a formula of the transmission power of the UE for transmitting the SRS and the PUSCH on a predetermined subframe comprises:

and modifying the value range of m: from [0,1] to [0,2], where newly introduced m =2 denotes SRS without PUSCH;

and modifying the value range of j: from [0,2] to [0,3], where newly introduced j =3 denotes SRS without PUSCH, or j =1 denotes SRS without PUSCH;

given parameter P _{SRS_OFFSET,c} (m) new meanings: the power offset of the SRS without PUSCH transmitted at this time and the power offset of the SRS without PUSCH transmitted at the last time are shown; or, transmitting power offset of the SRS without PUSCH relative to the PUSCH transmitted last time; or, transmitting the SRS without PUSCH with respect to a power offset of a PUSCH transmitted within a period of time; or, the power offset of the transmitted SRS with PUSCH relative to the transmitted SRS with PUSCH;

Impartation of P _{O_PUSCH,c} (j) New meaning, i.e. assigning the parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) New meaning of P _{O_NOMINAL_PUSCH,c} (j) Indicating normal SRS and/or PUSCH receiving or demodulating, and the expected SRS and/or PUSCH transmitting power level of the base station side; p is _{O_UE_PUSCH,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_PUSCH,c} (j) A power bias of (d); wherein, P _{O_PUSCH,c} (j) Including a parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j)；

Modifying the parameter alpha _c (j) And configuring a parameter alpha _c (j) Value set of (2): i.e., j ranges from [0,2]To [0,3]And when j =3, α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1}.

2. The method of claim 1, wherein the reporting period of the power headroom comprises at least one of:

1ms，2ms，3ms，4ms，5ms，6ms，7ms，8ms，9ms，10ms，20ms，50ms，100ms，200ms，500ms，1000ms。

3. the method of claim 1, wherein reporting the power headroom in an event-triggered manner comprises at least one of:

and triggering and reporting the power allowance under the condition that the change of the path loss reaches a preset threshold value within preset time.

4. The method of claim 1, wherein the dynamically triggering the power headroom report through physical layer DCI signaling comprises at least one of:

a field for indicating the triggering of power headroom reporting is carried in a physical layer DCI signaling;

Determining a timing relation value of a time domain subframe or a candidate time domain subframe for reporting the power margin;

a field for indicating a time domain subframe or a candidate time domain subframe for reporting the power headroom;

and triggering the power headroom to carry out one-time reporting or multiple times of reporting by the DCI signaling of the physical layer.

5. The method of claim 1, wherein the implicitly reporting the power headroom comprises at least one of:

triggering and reporting the power headroom by the end time of downlink transmission burst;

triggering and reporting the power headroom through the uplink transmission burst starting moment;

and triggering and reporting the power allowance when the Physical Uplink Shared Channel (PUSCH) of the UE exists in the uplink transmission burst.

6. The method of claim 1, wherein reporting the power headroom in a mixed manner of a periodic manner and an implicit manner comprises:

reporting the period of the power headroom, wherein the period is only after the uplink transmission burst is finished, or the uplink transmission burst is started, or the uplink transmission burst takes effect;

and the uplink transmission burst comprises one or more Physical Uplink Shared Channels (PUSCHs) of the UE.

7. The method of claim 1, wherein reporting the power headroom by a mixture of periodic and physical layer DCI signaling comprises:

reporting the period of the power headroom, triggering the reporting of the power headroom by a DCI signaling of a physical layer to take effect;

and triggering the power headroom to carry out one-time reporting or multiple-time reporting by the DCI signaling of the physical layer at a periodic point.

8. The method of claim 1, wherein the predetermined physical uplink resource comprises one of:

a Physical Uplink Shared Channel (PUSCH);

and a Physical Uplink Control Channel (PUCCH).

9. The method of claim 8,

the predetermined physical uplink resource is located in an unlicensed carrier or an authorized carrier.

10. The method of claim 1, wherein before reporting the power headroom on the predetermined physical uplink resource, further comprising:

and determining a time domain position for reporting the power headroom.

11. The method of claim 10, wherein determining the time domain location for power headroom reporting comprises:

a DCI signaling configuration mode is carried out through physical layer downlink control information;

Controlling the RRC signaling configuration mode through a high-level radio link;

the base station and the UE have a predetermined mode.

12. The method of claim 11, wherein determining the time domain location of the power headroom report through physical layer DCI signaling comprises one of:

triggering a physical layer DCI signaling reported by the power headroom to be sent on a subframe n, and determining a time domain subframe position reported by the power headroom or a candidate time domain subframe position according to a preset timing relationship; or,

determining the time domain subframe position or the candidate time domain subframe position reported by the power headroom through a field which is carried in a physical layer DCI signaling and is used for indicating the time domain subframe position or the candidate time domain subframe position reported by the power headroom;

triggering the power headroom report through a first physical layer DCI signaling, indicating a time domain subframe position or a candidate time domain subframe position of the power headroom report through a second physical layer DCI signaling, and determining the time domain subframe position or the candidate time domain subframe position of the power headroom report;

indicating the time domain subframe position or the candidate time domain subframe position of the power headroom report through a first physical layer DCI signaling, triggering the time domain subframe position or the candidate time domain subframe position of the power headroom report to take effect through a second physical layer DCI signaling, and/or triggering the power headroom report to be carried out on the time domain subframe position or the candidate time domain subframe position for one time, or carrying out the power headroom report for multiple times;

And indicating the size of a time window for reporting the power headroom, the offset in the time window and the interval parameter in the time window through a physical layer DCI signaling to determine the position of the time domain subframe reported by the power headroom or the position of a candidate time domain subframe, wherein the starting point of the time window reported by the power headroom is notified through the physical layer DCI signaling or determined according to a preset timing relationship.

13. The method of claim 12, wherein the predetermined timing relationship comprises:

n + k, where n is a subframe for transmitting a physical layer DCI signaling, and k is a positive integer greater than or equal to 1 or greater than or equal to 4.

14. The method of claim 11, wherein determining the time domain location of the phr via higher layer RRC signaling comprises:

determining a time domain position reported by the power headroom through at least one of the following parameters:

reporting the time window length of the power margin;

reporting the initial position of the time window of the power margin;

reporting the offset in the time window of the power allowance;

reporting a time domain resource interval in a time window of the power allowance;

reporting the number of time domain resources in a time window of the power allowance;

reporting a time domain resource pattern of the power headroom;

Reporting the period and the offset of the power headroom;

wherein the parameter is configured by RRC signaling.

15. The method of claim 11, wherein determining the time domain position reported by the power headroom by a pre-agreed manner between the base station and the UE comprises:

after downlink transmission burst, the scheduled first PUSCH subframe of the UE;

after the burst is transmitted in a downlink mode, at least one subframe corresponding to a subframe with an even or odd index number in a plurality of scheduled continuous PUSCH subframes of the UE;

one or more continuous PUSCH subframes scheduled by the UE after the downlink transmission burst;

one or more continuous PUSCH subframes in which the UE is scheduled within an uplink transmission burst;

in uplink transmission burst, the first PUSCH subframe scheduled by the UE;

in the uplink transmission burst, at least one of subframes corresponding to subframes with even or odd index numbers in a plurality of scheduled continuous PUSCH subframes of the UE;

a scheduled PUSCH subframe of the UE.

16. The method according to any of claims 10 to 15, wherein the time domain location reported by the power headroom comprises:

the time domain location is located in a licensed carrier, or an unlicensed carrier.

17. The method according to any one of claims 12 to 14,

the time domain position reported by the power headroom in the time window is continuous or discrete on the time domain; or,

the time domain resource for reporting the power headroom in the time window for reporting the power headroom is determined by at least one of the following parameters: reporting the time domain offset and/or the interval and/or the time domain resource size and/or the number of the time domain resources in the time window of the power headroom.

18. The method of claim 10, wherein after determining the time-frequency location for reporting the power headroom, further comprising:

performing a listen before talk, LBT, mechanism prior to the determined time domain location;

and reporting the power headroom at the time domain position under the condition that the LBT mechanism is successfully executed.

19. The method of claim 1, further comprising:

introducing a new parameter R on the basis of a power calculation formula of an SRS and a PUSCH _c (i)；

Wherein the parameter R _c (i) When the value is not 0dB, the UE transmits the SRS on the ith subframe of the cell c without the PUSCH condition; the parameter R _c (i) And when the value is 0dB, the UE transmits the SRS and the PUSCH on the ith subframe of the cell c.

20. The method of claim 1, further comprising:

introducing a new parameter q on the basis of a power calculation formula of an SRS and a PUSCH, wherein q =0 represents the SRS and PUSCH condition, and q =1 represents the SRS and PUSCH condition; alternatively, q =1 indicates the case of SRS and PUSCH, and q =0 indicates the case of SRS and PUSCH being absent.

21. The method of claim 1, further comprising:

based on the power calculation formula of SRS and PUSCH, by introducing a new parameter P _c (i) In place of parameter P _{SRS_OFFSET,c} (m)；

Wherein, the P _c (i) Indicating that the UE does not transmit the power of the SRS and the PUSCH in the ith subframe of the cell c relative to the power offset of the power for transmitting the PUSCH and/or the SRS and the PUSCH, or indicating a power adjustment amount;

by introducing new parameters P _{O_SRS,c} (j) Replacement parameter P _{O_PUSCH,c} (j)；

Wherein, the P is _{O_SRS,c} (j) Comprising P _{O_NOMINAL_SRS,c} (j) And P _{O_UE_SRS,c} (j)；P _{O_NOMINAL_SRS,c} (j) Indicating the normal SRS and/or PUSCH reception or demodulation, the expected SRS and/or PUSCH transmission power level, P, at the base station side _{O_UE_SRS,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_SRS,c} (j) Power bias of (3).

22. The method of any one of claims 1 to 15, 18 to 20, further comprising:

by introducing a new parameter f _c ' (i) substitution parameter f _c (i) Wherein, said f _c ' (i) is a power adjustment amount for the case where the SRS is not transmitted with PUSCH in the ith subframe of cell c;

by introducing a new parameter P' _CMAX,c (i) Replacement parameter P _CMAX,c (i) Wherein, P' _CMAX,c (i)＝P _CMAX,c (i) A first adjustment amount, the first adjustment amount being a real number.

23. The method of any one of claims 1 to 15, 18 to 20,

f _c (i) The method comprises the steps of introducing a field for indicating TPC command for no-Scheduled PUSCH in physical layer DCI signaling to obtain the physical layer DCI signaling.

24. The method according to any of claims 1-15 and 18-20, wherein determining the power headroom for the UE to transmit the SRS without PUSCH on the predetermined subframe in dependence on the determined transmit power for the UE to transmit the SRS without PUSCH on the predetermined subframe comprises:

PH _c (i)＝P _CMAX,c (i) -P, or PH _c (i)＝P' _CMAX,c (i)-P；

Wherein the pH is _c (i) And P is a second term in braces in the SRS sending power calculation formula, and is a power margin for the UE to transmit the predetermined signal on the ith subframe of the cell c.

25. The method according to any of claims 1 to 15 and 18 to 20, wherein the parameters for determining the transmission power of the UE for transmitting the SRS and PUSCH on the predetermined subframe are obtained by at least one of:

Controlling a static or semi-static configuration mode of RRC signaling through a high-level radio link;

the method is realized by a DCI signaling mode.

26. The method of claim 25, wherein the physical layer DCI signaling comprises at least one of:

UE (user equipment) is provided with a DCI signaling, and DCI format 0/4 is adopted;

common DCI signaling, DCI format 1C is adopted;

group downlink control information Group DCI signaling adopts DCI format 3/3A;

downlink control information DL DCI signaling adopts DCI format 1A/2B/2C;

new DCI signaling.

27. A power control apparatus, comprising:

a first determining module, configured to determine a power headroom of a predetermined channel or a predetermined signal transmitted on a predetermined subframe on an unlicensed carrier by a user equipment UE;

a reporting module, configured to report the power headroom on a predetermined physical uplink resource according to a predetermined reporting mode;

reporting the power headroom periodically;

reporting the power headroom by event triggering;

reporting the power headroom in an implicit mode;

Reporting the power margin in a mode of mixing periodicity and event trigger;

reporting the power headroom in a mode of mixing a periodic DCI signaling and a physical layer DCI signaling;

reporting the power headroom in a mode of mixing periodicity and event trigger, wherein the reporting the power headroom in the mode of mixing the periodicity with the event trigger comprises the following steps:

wherein the predetermined signal or the predetermined channel comprises one of:

a Physical Uplink Shared Channel (PUSCH);

sounding reference signals and a physical uplink shared channel SRS with PUSCH;

a Physical Uplink Control Channel (PUCCH);

wherein the first determining module comprises:

a first determining unit, configured to determine, when the predetermined signal is that the SRS and the PUSCH are not transmitted, power at which the UE transmits the SRS and the PUSCH on a predetermined subframe in a manner of modifying a power calculation formula for transmitting the SRS and the PUSCH on the predetermined subframe;

A second determining unit, configured to determine, according to the determined transmission power of the UE for transmitting the SRS on the predetermined subframe without using a PUSCH, the power headroom of the UE for transmitting the SRS on the predetermined subframe without using a PUSCH;

wherein, the P is _CMAX,c (i) For the maximum transmission power of the terminal, the P _{SRS_OFFSET,c} (M) is the power offset for transmitting SRS without PUSCH, M _SRS,c For SRS transmission bandwidth, the P _{O_PUSCH,c} (j) Desired SRS and/or PUSCH transmission power level at the base station side for normal SRS and/or PUSCH reception or demodulation, the alpha _c (j) Compensating the ratio and weight factor for path loss, the PL _c The level of pathloss measured for the terminal, said f _c (i) Transmitting the power adjustment amount of the situation that the SRS is not transmitted with the PUSCH in the ith subframe of the cell c;

wherein the first determining unit comprises a first modifying subunit, configured to modify a formula of transmission power for the UE to transmit the SRS and PUSCH on a predetermined subframe, and the modifying comprises:

given parameter P _{SRS_OFFSET,c} (m) new meanings: the power offset of the SRS without PUSCH transmitted at this time and the power offset of the SRS without PUSCH transmitted at the last time are shown; or, transmitting power offset of the SRS without PUSCH relative to the PUSCH transmitted last time; alternatively, the transmitting SRS without PUSCH corresponds to oneTransmitting power offset of PUSCH in a period of time; or, the power offset of the transmitted SRS with PUSCH relative to the transmitted SRS with PUSCH;

impartation of P _{O_PUSCH,c} (j) New meaning, i.e. assigning the parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j) New meaning of P _{O_NOMINAL_PUSCH,c} (j) Indicating normal SRS and/or PUSCH receiving or demodulating, and the expected SRS and/or PUSCH transmitting power level of the base station side; p _{O_UE_PUSCH,c} (j) Indicating that UE transmits SRS and/or PUSCH relative to P _{O_NOMINAL_PUSCH,c} (j) Power bias of (d); wherein, P _{O_PUSCH,c} (j) Including a parameter P _{O_NOMINAL_PUSCH,c} (j) And P _{O_UE_PUSCH,c} (j)；

Modifying the parameter alpha _c (j) And configuring the parameter alpha _c (j) Value set of (2): i.e., j ranges from [0,2]To [0,3]And when j =3, α ∈ {0,0.4,0.5,0.6,0.7,0.8,0.9,1}.

28. The apparatus of claim 27, wherein the reporting period of the power headroom comprises at least one of:

29. The apparatus of claim 27, wherein reporting the power headroom in an event-triggered manner comprises at least one of:

and under the condition that the change of the path loss reaches a preset threshold value within preset time, triggering and reporting the power allowance.

30. The apparatus of claim 27, wherein the dynamically triggering the power headroom reporting through physical layer DCI signaling comprises at least one of:

a field for indicating triggering of power headroom reporting is carried in a physical layer DCI signaling;

31. The apparatus of claim 27, wherein the implicitly reporting the power headroom comprises at least one of:

triggering and reporting the power allowance through the starting moment of uplink transmission burst;

32. The apparatus of claim 27, wherein reporting the power headroom in a mixture of a periodic manner and an implicit manner comprises:

and one or more Physical Uplink Shared Channels (PUSCHs) of the UE exist in the uplink transmission burst.

33. The apparatus of claim 27, wherein reporting the power headroom in a mixture of periodic and physical layer DCI signaling comprises:

and the period of reporting the power headroom is triggered by a physical layer DCI signaling and then takes effect after the reporting of the power headroom is carried out.

34. The apparatus of claim 27, wherein the predetermined physical uplink resource comprises one of:

a Physical Uplink Shared Channel (PUSCH);

and a Physical Uplink Control Channel (PUCCH).

35. The apparatus of claim 34,

36. The apparatus of claim 27, further comprising:

a second determining module, configured to determine a time domain position for reporting the power headroom before reporting the power headroom on the predetermined physical uplink resource.

37. The apparatus of claim 36, wherein the means for determining the time domain location for power headroom reporting comprises:

a signaling configuration mode of downlink control information DCI of a physical layer is adopted;

the base station and the UE agree in advance.

38. The apparatus of claim 37, wherein determining the time domain location of the power headroom report through physical layer DCI signaling comprises one of:

triggering a physical layer DCI signaling reported by the power headroom to be sent on a subframe n, and determining a time domain subframe position reported by the power headroom or a candidate time domain subframe position according to a preset timing relation; or,

Indicating the time domain subframe position or the candidate time domain subframe position of the power headroom report through a first physical layer DCI signaling, triggering the time domain subframe position or the candidate time domain subframe position of the power headroom report to be effective through a second physical layer DCI signaling, and/or triggering the power headroom report to be carried out on the time domain subframe position or the candidate time domain subframe position for one time, or carrying out the power headroom report for multiple times;

39. The apparatus of claim 38, wherein the predetermined timing relationship comprises:

40. The apparatus of claim 37, wherein determining the time domain location of the power headroom report through higher layer RRC signaling comprises:

Determining the time domain position reported by the power headroom by at least one of the following parameters:

reporting the time window length of the power margin;

reporting the initial position of the time window of the power margin;

reporting the offset in the time window of the power allowance;

reporting a time domain resource pattern of the power headroom;

reporting the period and the offset of the power headroom;

wherein the parameter is configured by RRC signaling.

41. The apparatus of claim 37, wherein determining the time domain position of the power headroom report by a manner agreed in advance by the base station and the UE comprises:

in uplink transmission burst, the first PUSCH subframe scheduled by the UE;

a scheduled PUSCH subframe of the UE.

42. The apparatus of any of claims 36 to 41, wherein the time domain location reported by the power headroom report comprises:

43. The apparatus of any one of claims 38 to 40,

44. The apparatus of claim 36, further comprising:

an execution module, configured to execute a listen before talk, LBT, mechanism before the determined time domain position after determining a time-frequency position for reporting the power headroom;

The reporting module is configured to report the power headroom at the time domain position under a condition that the LBT mechanism is successfully executed.

45. The apparatus of claim 27, wherein the first determining unit further comprises a second modifying subunit configured to modify a formula of transmission power for the UE to transmit the SRS and PUSCH on a predetermined subframe, and wherein the modifying subunit is configured to:

46. The apparatus of claim 27, wherein the first determining unit further comprises a third modifying subunit configured to modify a formula of transmission power for the UE to transmit the SRS and PUSCH on a predetermined subframe, and wherein the third modifying subunit is configured to:

introducing a new parameter q on the basis of a power calculation formula of an SRS and a PUSCH, wherein q =0 represents the SRS and PUSCH condition, and q =1 represents the SRS and PUSCH condition; alternatively, q =1 indicates the case of SRS and PUSCH, and q =0 indicates that SRS and PUSCH are not used.

47. The apparatus of claim 27, wherein the first determining unit further comprises a fourth modifying subunit configured to modify a formula of transmission power for the UE to transmit the SRS and PUSCH on a predetermined subframe, and wherein the fourth modifying subunit is configured to:

Wherein, the P _c (i) Indicating that the UE does not transmit the SRS and the PUSCH in the ith subframe of the cell c, and the power offset of the power for transmitting the PUSCH and/or the SRS and the PUSCH is/are relative to the power for transmitting the PUSCH and/or the power for transmitting the SRS and the PUSCH, or indicating a power adjustment amount;

Wherein, the P _{O_SRS,c} (j) Including P _{O_NOMINAL_SRS,c} (j) And P _{O_UE_SRS,c} (j)；P _{O_NOMINAL_SRS,c} (j) Indicating the normal SRS and/or PUSCH reception or demodulation, the expected SRS and/or PUSCH transmission power level, P, at the base station side _{O_UE_SRS,c} (j) Indicating UE transmission SRS and/or PUSCH relative to P _{O_NOMINAL_SRS,c} (j) Is applied to the power bias.

48. The apparatus according to any of claims 27 to 41 and 44 to 46, wherein the first determining unit further comprises a fifth modifying sub-unit for modifying the formula of the transmission power of the UE for transmitting the SRS and PUSCH on a predetermined subframe, comprising:

49. The apparatus of any one of claims 27 to 41, 44 to 46,

50. The apparatus according to any of claims 27-41 and 44-46, wherein the second determining unit is further configured to determine the power headroom of the UE for transmitting the SRS over the predetermined subframe and PUSCH by:

PH _c (i)＝P _CMAX,c (i) -P, or PH _c (i)＝P' _CMAX,c (i)-P；

51. The apparatus according to any of claims 27 to 41 and 44 to 46, wherein the first determining unit further comprises an obtaining subunit, configured to obtain the parameter for determining the transmission power of the UE for transmitting the SRS without PUSCH on the predetermined subframe, by at least one of:

the method is realized by a DCI signaling mode.

52. The apparatus of claim 51, wherein the physical layer DCI signaling comprises at least one of:

common DCI signaling, DCI format 1C is adopted;

group downlink control information Group DCI signaling adopts DCI format 3/3A;

downlink control information DL DCI signaling adopts DCI format 1A/2B/2C;

new DCI signaling.

53. A user equipment, UE, comprising the apparatus of any of claims 27 to 52.