CN108574982B

CN108574982B - Method and device used in user equipment and base station for power adjustment

Info

Publication number: CN108574982B
Application number: CN201710130320.2A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2017-03-07
Filing date: 2017-03-07
Publication date: 2021-05-28
Anticipated expiration: 2037-03-07
Also published as: CN108574982A

Abstract

The invention discloses a method and a device in user equipment and a base station used for power adjustment. The UE first receives downlink signaling and then sends a first wireless signal. Wherein the downlink signaling triggers transmission of the first wireless signal, the first wireless signal including a first report, the first report being used to determine a first difference. The downlink signaling is MAC CE signaling or physical layer signaling. { first reference power, second reference power } at least the former of which is power estimated for uplink channel transmission, respectively, is used for determining the first difference. The method allows the base station to utilize MAC CE signaling or physical layer signaling to inform the UE to update the report of PHR in time under the condition that the channel fading change of the uplink channel is difficult to be observed by the UE in time.

Description

Method and device used in user equipment and base station for power adjustment

Technical Field

The present application relates to a method and an apparatus for transmitting a wireless signal in a wireless communication system, and more particularly, to a transmission scheme and an apparatus for a wireless signal in a wireless communication system supporting power adjustment.

Background

Large-scale (Massive) MIMO (Multiple Input Multiple Output) becomes a research hotspot of next-generation mobile communication. In large-scale MIMO, multiple antennas form a narrow beam pointing to a specific direction by beamforming to improve communication quality. Due to the narrow width of the beams, the transmission paths traversed by beams pointing in different directions are different, which causes a significant difference between the long-term channel fading experienced by signals using different beamforming vectors. This difference between long-term channel fading presents new problems for uplink power adjustment.

Disclosure of Invention

The inventor finds, through research, that when there is no channel reciprocity between uplink and downlink, or when different beamforming directions are used for uplink and downlink, a long-term channel fading variation of an uplink channel is difficult to observe through measurement at a UE (User Equipment) end. In this case, it is not enough to trigger reporting of PHR (Power head room Report) by means of the existing technology, i.e. by means of measurement at the UE end and timing of a timer.

The present application discloses a solution to the above-mentioned problems. It should be noted that, although the initial motivation of the present application is for a large-scale MIMO scenario, the present application is also applicable to a single-antenna scenario. Without conflict, embodiments and features in embodiments in the UE of the present application may apply to the base station and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

The application discloses a method used in a UE for power adjustment, wherein the method comprises the following steps:

-step a. receiving downlink signalling;

-step b.

Wherein the downlink signaling triggers transmission of the first wireless signal, the first wireless signal including a first report, the first report being used to determine a first difference. The downlink signaling is MAC CE signaling or physical layer signaling. { first reference power, second reference power } at least the former of which is power estimated for uplink channel transmission, respectively, is used for determining the first difference.

As an embodiment, the method has the advantages that, in the case that uplink and downlink have no channel reciprocity, the base station can timely find the change of long-term channel fading of the uplink channel through the measurement of the uplink signal, and timely notify the UE to report the PHR according to the current channel state by using the downlink signaling.

As an embodiment, another advantage of the foregoing method is that, in the case that different beamforming directions are used for uplink and downlink, the base station can timely notify the UE of feeding back a PHR corresponding to a current uplink beamforming direction by using the downlink signaling according to a scheduling condition.

As an embodiment, the first difference value is carried by higher layer signaling.

As a sub-embodiment of the foregoing embodiment, the higher layer signaling is MAC CE (Medium Access Control layer Control Element) signaling.

As an embodiment, the downlink signaling is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).

As a sub-embodiment of the foregoing embodiment, the Downlink Physical layer Control CHannel is a PDCCH (Physical Downlink Control CHannel).

As a sub-embodiment of the foregoing embodiment, the downlink physical layer control channel is an sPDCCH (short PDCCH).

As a sub-embodiment of the foregoing embodiment, the downlink physical layer control channel is an NR-PDCCH (New Radio PDCCH).

As an embodiment, the downlink signaling is transmitted on a downlink physical layer data channel (i.e. a downlink channel that can be used to carry physical layer data).

As a sub-embodiment of the foregoing embodiment, the Downlink Physical layer data CHannel is a PDSCH (Physical Downlink Shared CHannel).

As a sub-embodiment of the foregoing embodiment, the downlink physical layer data channel is sPDSCH (short PDSCH).

As an embodiment, the downlink signaling further includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, mcs (modulation and Coding scheme), HARQ (Hybrid Automatic Repeat reQuest) process number, RV (Redundancy Version), and NDI (New Data Indicator) }.

As a sub-embodiment of the foregoing embodiment, the downlink signaling is physical layer signaling.

As one embodiment, the first Report includes a PHR (Power head room Report).

As one example, the first difference is PH (Power head space).

As an example, the unit of the first difference is dB (decibel).

As an embodiment, the first difference value is equal to a difference between the limit power and a third reference power.

As a sub-embodiment of the above embodiment, the third reference power is equal to a base-10 logarithm of the sum of the linear value of the first reference power and the linear value of the second reference power multiplied by 10.

As a sub-embodiment of the above embodiment, the third reference power is equal to the first reference power.

As a sub-embodiment of the above embodiment, the limited power is a maximum transmission power of the first wireless signal on a serving cell of the UE.

As a sub-embodiment of the above embodiment, the limit power is P &_CMAX,c(i) The P &_CMAX,c(i) Is the maximum transmit power of the UE in the ith subframe in the serving cell with index c. The first wireless signal is transmitted on the serving cell with index c. E, E_CMAX,c(i) See TS36.213 for specific definitions of (d).

As a sub-embodiment of the above embodiment, the limiting power is P_CMAX,c(i) Said P is_CMAX,c(i) Is the maximum transmission power of the UE in the ith subframe in the serving cell with index c, and the first wireless signal is transmitted on the serving cell with index c. The P is_CMAX,c(i) See TS36.213 for specific definitions of (d).

As an embodiment, the first wireless signal includes at least one of { uplink data, uplink control information }.

As an embodiment, the first wireless signal indicates first indication information, the first indication information being applied to the first difference value. The first indication information indicates whether a MAC Entity (Entity) employs power backoff.

As an example, the first wireless signal is transmitted on an uplink physical layer data channel (i.e., an uplink channel that can be used to carry physical layer data).

As a sub-embodiment of the foregoing embodiment, the Uplink Physical layer data CHannel is a PUSCH (Physical Uplink Shared CHannel).

As a sub-embodiment of the foregoing embodiment, the uplink physical layer data channel is a short PUSCH (short PUSCH).

Specifically, according to one aspect of the present application, the step a further includes at least one of the following steps a0 and a1, a 0:

-step A0. receiving R first signalling;

-step a1. receiving Q second signallings.

Wherein the R first signaling is used to determine R first offsets, the Q second signaling is used to determine Q second offsets, the sum of the first reference power and the R first offsets is linearly related, and the sum of the second reference power and the Q second offsets is linearly related. And R and Q are respectively positive integers.

As an embodiment, the first signaling is dynamic signaling.

As an embodiment, the first signaling is dynamic signaling for UpLink Grant (UpLink Grant).

As an embodiment, the first signaling indicates the first offset.

As an embodiment, the first signaling is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used to carry physical layer signaling).

As a sub-embodiment of the foregoing embodiment, the downlink physical layer control channel is a PDCCH.

As a sub-embodiment of the foregoing embodiment, the downlink physical layer control channel is sPDCCH.

As a sub-embodiment of the above-mentioned embodiment, the downlink physical layer control channel is an NR-PDCCH.

For one embodiment, the first offset is indicated by a TPC (transmit Power Control).

As an example, the first reference power is in dBm (decibels).

As an embodiment, the first reference power is linearly related to a first component, and the first component is related to a bandwidth occupied by the first wireless signal. A linear coefficient between the first reference power and the first component is 1.

As a sub-embodiment of the above embodiment, the first component is 10log₁₀(M_PUSCH,c(i) M) of_PUSCH,c(i) The first radio signal is a bandwidth in resource block unit allocated to a PUSCH in an ith subframe in a serving cell with index c, and is transmitted on the serving cell with index c. The M is_PUSCH,c(i) See TS36.213 for specific definitions of (d).

As an embodiment, the first reference power is linearly related to a second component, and the second component is related to a scheduling type of the first wireless signal. A linear coefficient between the first reference power and the second component is 1.

As a sub-embodiment of the above embodiment, the second component is P_{O_PUSCH,c}(j) Said P is_{O_PUSCH,c}(j) Is a power offset associated with the scheduling type with index j on a serving cell with index c, the first wireless signal being transmitted on the serving cell with index c. The P is_{O_PUSCH,c}(j) See TS36.213 for specific definitions of (d).

As a sub-embodiment of the foregoing embodiment, the scheduling types include { semi-static grant (semi-persistent grant), dynamic scheduling grant (dynamic scheduled grant), random access response grant (random access response grant) }.

As a sub-embodiment of the above embodiment, the second component is configured by higher layer signaling.

As a sub-embodiment of the above embodiment, the second component is cell common.

As an embodiment, the first reference power is linearly related to a third component, the third component being related to the MCS of the first wireless signal. A linear coefficient between the first reference power and the third component is 1.

As a sub-embodiment of the above embodiment, the third component is Δ_TF,c(i) Said Δ_TF,c(i) Is a power offset associated with the MCS of the first wireless signal in the ith subframe in the serving cell with index c, the power offset beingThe first wireless signal is transmitted on the serving cell with index c. Said Δ_TF,c(i) See TS36.213 for specific definitions of (d).

As an embodiment, a linear coefficient between the first reference power and the sum of the R first offsets is 1.

As an embodiment, the first reference power and the eighth component are linearly related, and the R first offsets are used to determine the eighth component. A linear coefficient between the first reference power and the eighth component is 1.

As a sub-embodiment of the above embodiment, the sum of the eighth component and the R first offsets is linearly related, and a linear coefficient between the sum of the eighth component and the R first offsets is 1.

As a sub-embodiment of the above embodiment, the eighth component is f_c(i) Said f_c(i) The state is the power control adjustment state on the PUSCH in the ith subframe in the serving cell with the index c, and the first wireless signal is transmitted on the serving cell with the index c. F is_c(i) See TS36.213 for specific definitions of (d).

As a sub-embodiment of the above embodiment, the sum of the R first offsets is equal to the f_c(i)。

As an embodiment, the second signaling is dynamic signaling.

As an embodiment, the second signaling is dynamic signaling for DownLink Grant (DownLink Grant).

As an embodiment, the second signaling indicates the second offset.

As an embodiment, the second signaling is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).

As one embodiment, the second offset is indicated by TPC.

As an embodiment, the unit of the second reference power is dBm.

As an embodiment, the second reference power and the fourth component are linearly related. The fourth component is related to a format (format) of a PUCCH (Physical Uplink Control Channel). A linear coefficient between the second reference power and the fourth component is 1.

As a sub-embodiment of the above embodiment, the fourth component h (n)_CQI,n_HARQ,n_SR) H (n) as defined above_CQI,n_HARQ,n_SR) Related to the format (format) of the PUCCH, said n_CQIIs the number of information bits included in the channel quality information (channel quality information), said n_HARQIs the number of bits of HARQ-ACK (Hybrid Automatic Repeat reQuest-Acknowledgement) in the ith subframe, and n is_SRAnd indicating whether the ith subframe carries the SR (Scheduling Request). H (n) is_CQI,n_HARQ,n_SR)，n_CQI，n_HARQAnd n_SRSee TS36.213 for specific definitions of (d).

As an embodiment, the second reference power and the fifth component are linearly related. The fifth component relates to a format (format) of the PUCCH. A linear coefficient between the second reference power and the fifth component is 1.

As a sub-embodiment of the above embodiment, the fifth component is Δ_{F_PUCCH}(F) Said Δ_{F_PUCCH}(F) Is the power offset of PUCCH format (format) F with respect to PUCCH format 1 a. Said Δ_{F_PUCCH}(F) See TS36.213 for specific definitions of (d).

As a sub-embodiment of the above embodiment, the PUCCH format (format) includes {1, 1a, 1b, 2, 2a, 2b, 3, 4, 5 }.

As a sub-embodiment of the above embodiment, said fifth component is configured by higher layer signaling.

As a sub-embodiment of the above embodiment, the fifth component is cell common.

As an embodiment, the second reference power and the sixth component are linearly related. The sixth component relates to a number of antenna ports that the UE can use to transmit PUCCH. A linear coefficient between the second reference power and the sixth component is 1.

As a sub-embodiment of the above embodiment, the sixth component is Δ_TxD(F'), when the UE is configured by higher layer signaling to transmit PUCCH on two antenna ports, the Δ_TxD(F ') configuring each PUCCH format F' by higher layer signaling; otherwise the said Δ_TxD(F') is equal to 0. Said Δ_TxDSee TS36.213 for a specific definition of (F').

As a sub-embodiment of the above embodiment, the sixth component is configured by higher layer signaling.

As a sub-embodiment of the above embodiment, the sixth component is cell-common.

As an embodiment, the second reference power and the seventh component are linearly related, and the seventh component is a power reference of the PUCCH. A linear coefficient between the second reference power and the seventh component is 1.

As a sub-embodiment of the above embodiment, the seventh component is P_{O_PUCCH}Said P is_{O_PUCCH}Is the power reference for PUCCH. The P is_{O_PUCCH}See TS36.213 for specific definitions of (d).

As a sub-embodiment of the above embodiment, the seventh component is configured by higher layer signaling.

As a sub-embodiment of the above embodiment, the seventh component is cell-common.

As an embodiment, a linear coefficient between the second reference power and the sum of the Q second offsets is 1.

As an embodiment, the second reference power and a ninth component are linearly related, and the Q second offsets are used to determine the ninth component. A linear coefficient between the second reference power and the ninth component is 1.

As a sub-embodiment of the above embodiment, the sum of the ninth component and the Q second offsets is linearly related, and a linear coefficient between the ninth component and the sum of the Q second offsets is 1.

As a sub-embodiment of the above embodiment, the ninth component is g (i), and g (i) is a state of power control adjustment on the current PUCCH. See TS36.213 for specific definitions of g (i).

As a sub-embodiment of the above embodiment, the sum of the Q second offsets is equal to the g (i).

In particular, according to one aspect of the present application, it is characterized in that said first difference value is equal to the difference between the limiting power and the third reference power. The third reference power is determined by the first reference power and the second reference power; or the third reference power is equal to the first reference power.

As an embodiment, the unit of the third reference power is dBm.

As an embodiment, the third reference power is equal to a base-10 logarithm of the sum of the linear value of the first reference power and the linear value of the second reference power multiplied by 10.

As a sub-embodiment of the above embodiment, the linear value of the given power is equal to the given power divided by 10, and then the base index is taken as 10, and the unit of the given power is dBm.

As an example, the unit of the limiting power is dBm.

As an embodiment, the limited power is a maximum transmission power of the first wireless signal on a serving cell of the UE.

As an embodiment, the limited Power is a Maximum transmission Power of the first wireless signal on the serving cell of the UE calculated according to TS36.101 when MPR (Maximum Power Reduction), a-MPR (Additional Maximum Power Reduction), and P-MPR (Power Management Maximum Power Reduction ), Δ Tc (Allowed Power relaxation at the operating band boundary) are all 0 dB. Wherein, the detailed descriptions of the MPR, the A-MPR, the P-MPR, and the Δ Tc refer to TS 36.101.

As one embodiment, the limiting power is

The above-mentioned

Is the maximum transmit power of the UE in the ith subframe in the serving cell with index c. The first wireless signal is transmitted on the serving cell with index c. The above-mentioned

See TS36.213 for specific definitions of (d).

As one embodiment, the limited power is indicated by the first wireless signal.

As one example, the limiting power is P_CMAX,c(i) Said P is_CMAX,c(i) Is the maximum transmission power of the UE in the ith subframe in the serving cell with index c, and the first wireless signal is transmitted on the serving cell with index c. The P is_CMAX,c(i) See TS36.213 for specific definitions of (d).

Specifically, according to an aspect of the present application, the step a further includes the steps of:

a step a2. receiving L downlink radio signals.

Wherein the L downlink wireless signals are respectively transmitted by L antenna port groups, a measurement for a first downlink wireless signal is used to determine a first path loss, the first downlink wireless signal being one of the L downlink wireless signals, the first path loss being used to determine at least the former of { the first reference power, the second reference power }. The downlink signaling is used to determine a first index, and the index of the first downlink wireless signal in the L downlink wireless signals is the first index. The antenna port group comprises a positive integer number of antenna ports. L is a positive integer greater than 1. The first index is an integer.

As an embodiment, the method has the advantage of allowing the UE to perform uplink channel estimation by measuring the downlink wireless signal transmitted in the downlink on the premise that the uplink and downlink channels have reciprocity, thereby reducing the complexity and overhead of uplink channel estimation.

As an embodiment, another advantage of the foregoing method is that the first index is used to distinguish between the PHR corresponding to different downlink wireless signals, that is, the PHR corresponding to different antenna port groups, which helps a base station to optimize scheduling of uplink transmission according to channel characteristics corresponding to the antenna port groups that are specifically used.

As an embodiment, the first reference power and the first path loss are linearly related.

As a sub-embodiment of the above embodiment, a linear coefficient between the first reference power and the first path loss is a non-negative real number less than or equal to 1.

As a sub-embodiment of the above embodiment, a linear coefficient between the first reference power and the first path loss is α_c(j) Said α is_c(j) Is a partial path loss compensation factor related to the scheduling type with the index j in the serving cell with the index c, and the first wireless signal is transmitted on the serving cell with the index c. A is said_c(j) See TS36.213 for specific definitions of (d).

As a sub-embodiment of the above embodiment, a linear coefficient between the first reference power and the first path loss is configurable. As a reference embodiment of this sub-embodiment, the linear coefficients are configured by higher layer signaling.

As an embodiment, the second reference power and the first path loss are linearly related.

As a sub-embodiment of the above embodiment, a linear coefficient between the second reference power and the first path loss is 1.

As an embodiment, the antenna port is formed by superimposing a plurality of antennas through antenna Virtualization (Virtualization), and mapping coefficients of the plurality of antennas to the antenna port form a beamforming vector. The beamforming vector is generated by a Kronecker product of an analog beamforming vector and a digital beamforming vector.

As a sub-embodiment of the above-mentioned embodiment, different antenna ports in one antenna port group correspond to the same analog beamforming vector.

As a sub-embodiment of the foregoing embodiment, different antenna ports in one antenna port group correspond to different digital beamforming vectors.

As a sub-embodiment of the above embodiment, different antenna port groups correspond to different analog beamforming vectors.

As an embodiment, the number of antenna ports included in different antenna port groups is the same.

As an embodiment, there are at least two of the antenna port groups comprising a different number of the antenna ports.

As an embodiment, the downlink wireless signal includes a positive integer number of downlink sub-signals, and any one of the downlink wireless signals includes a one-to-one correspondence between a downlink sub-signal and an antenna port in a corresponding antenna port group.

As a sub-embodiment of the foregoing embodiment, the downlink sub-signals included in any one of the downlink wireless signals are respectively transmitted by the antenna ports in the corresponding antenna port group.

As an embodiment, the first downlink wireless Signal includes M downlink sub-signals, and the first path loss is equal to an average value of RSRP (Reference Signal Received Power) of the M downlink sub-signals subtracted from an average transmission Power of the M downlink sub-signals. And M is a positive integer.

As a sub-embodiment of the above embodiment, said M is equal to 1.

As a sub-embodiment of the above embodiment, said M is greater than 1.

As an embodiment, the L downlink wireless Signals include one or more of { SS (Synchronization Signals), { MIB (Master Information Block)/SIB (System Information Block) }, CSI-RS (Channel State Information Reference Signals), and DMRS (DeModulation Reference Signals) }.

For one embodiment, the first index is a non-negative integer no greater than the L.

As an embodiment, the time domain resources occupied by the L downlink wireless signals are mutually orthogonal.

step a 3: and transmitting the second wireless signal.

Wherein the second wireless signals are used to determine L1 downlink wireless signals from the L downlink wireless signals, the L1 downlink wireless signals being a subset of the L downlink wireless signals, the first downlink wireless signals belonging to the L1 downlink wireless signals. L1 is a positive integer less than or equal to L.

As an embodiment, the second wireless signal indicates an index of each of the L1 downlink wireless signals in the L downlink wireless signals.

As one embodiment, the measurements for the L downlink wireless signals are used to determine L path losses, respectively, and L1 path losses are the path losses of the L path losses corresponding to the L1 downlink wireless signals, respectively. Any one of the L1 path losses is less than any one of the L1 path losses that does not belong to the L1 path losses.

As one embodiment, the first path loss is the smallest of the L1 path losses.

As one embodiment, the first path loss is the second smallest of the L1 path losses.

As one embodiment, the second wireless signal indicates the L1 path losses.

step A4. respectively transmitting K uplink wireless signals in K time windows.

Wherein any two of the K time windows are orthogonal, a measurement for a first uplink wireless signal being one of the K uplink wireless signals is used to determine a second path loss. The downlink signaling is used to determine the second path loss, which is used to determine at least the former of { the first reference power, the second reference power }. The K is a positive integer greater than 1.

As an embodiment, the method described above has an advantage of supporting the UE to transmit the uplink wireless signal to assist the base station in uplink channel estimation when uplink and downlink channels do not have reciprocity, and determining whether to trigger transmission of the first wireless signal according to the estimation result.

As an embodiment, another advantage of the foregoing method is that the base station determines the second path loss according to the measurement of the first uplink wireless signal, and notifies the UE of the second path loss through the downlink signaling, so that the UE can calculate the PH more accurately.

As an embodiment, the K uplink wireless signals correspond to the same transmitting antenna port.

As an embodiment, the K uplink wireless Signals include one or more of { RACH (Random Access CHannel ) Preamble (Preamble), SRS (Sounding Reference Signals ), DMRS }.

As an embodiment, K beamforming vectors are respectively used for receiving the K uplink wireless signals.

As one embodiment, the downlink signaling indicates the second path loss.

As an embodiment, the first reference power and the second path loss are linearly related.

As a sub-embodiment of the above embodiment, a linear coefficient between the first reference power and the second path loss is a non-negative real number less than or equal to 1.

As a sub-embodiment of the above embodiment, a linear coefficient between the first reference power and the second path loss is α_c(j) Said α is_c(j) Is a partial path loss compensation factor related to the scheduling type with the index j in the serving cell with the index c, and the first wireless signal is transmitted on the serving cell with the index c. A is said_c(j) See TS36.213 for specific definitions of (d).

As a sub-embodiment of the above embodiment, a linear coefficient between the first reference power and the second path loss is configurable. As a reference embodiment of this sub-embodiment, the linear coefficients are configured by higher layer signaling.

As an embodiment, the second reference power and the second path loss are linearly related.

As a sub-embodiment of the above embodiment, a linear coefficient between the second reference power and the second path loss is 1.

As an embodiment, the second path loss is equal to a transmission power of the first uplink wireless signal minus an RSRP of the first uplink wireless signal.

As an embodiment, the second path loss is obtained by subtracting RSRP of the first uplink wireless signal from the transmission power of the first uplink wireless signal and quantizing the RSRP.

As one embodiment, the measurements for the K uplink wireless signals are used to determine K path losses, the second path loss being the smallest of the K path losses.

As one embodiment, the measurements for the K uplink wireless signals are used to determine K path losses, the second path loss being the second smallest of the K path losses.

As one embodiment, the time window includes a positive integer number of consecutive wideband symbols.

As a sub-embodiment of the above embodiment, the wideband symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

As a sub-embodiment of the above embodiment, the wideband symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

As a sub-embodiment of the above embodiment, the wideband symbol is an FBMC (Filter Bank Multi Carrier) symbol.

As an embodiment, the K time windows are consecutive in the time domain.

As one embodiment, the K time windows are discontinuous in the time domain.

Specifically, according to an aspect of the present application, it is characterized in that the target first signaling is the latest first signaling in the R first signaling, and the target first signaling includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS, HARQ process number, RV, NDI }.

The application discloses a method used in a base station for power adjustment, which comprises the following steps:

-step a. sending downlink signalling;

-step b.

As one embodiment, the first Report includes a PHR (Power head room Report).

As one example, the first difference is PH (Power head space).

-step A0. sending R first signalling;

-step a1. sending Q second signalling.

As an embodiment, the first signaling is dynamic signaling.

As an embodiment, the second signaling is dynamic signaling.

As one embodiment, the second offset is indicated by TPC.

a step a2. transmitting L downlink radio signals.

step a 3: a second wireless signal is received.

a step a4. receiving K uplink radio signals in K time windows, respectively.

The application discloses a user equipment used for power adjustment, which comprises the following modules:

a first processing module: used for receiving the downstream signaling;

a first sending module: for transmitting a first wireless signal.

As an embodiment, the above user equipment for power adjustment is characterized in that the first processing module is further configured to receive at least the former one of { R first signaling, Q second signaling }. Wherein the R first signaling is used to determine R first offsets, the Q second signaling is used to determine Q second offsets, the sum of the first reference power and the R first offsets is linearly related, and the sum of the second reference power and the Q second offsets is linearly related. And R and Q are respectively positive integers.

As an embodiment, the user equipment used for power adjustment as described above is characterized in that the first difference value is equal to a difference between the limiting power and a third reference power. The third reference power is determined by the first reference power and the second reference power; or the third reference power is equal to the first reference power.

As an embodiment, the user equipment used for power adjustment is characterized in that the first processing module is further configured to receive L downlink wireless signals. Wherein the L downlink wireless signals are respectively transmitted by L antenna port groups, a measurement for a first downlink wireless signal is used to determine a first path loss, the first downlink wireless signal being one of the L downlink wireless signals, the first path loss being used to determine at least the former of { the first reference power, the second reference power }. The downlink signaling is used to determine a first index, and the index of the first downlink wireless signal in the L downlink wireless signals is the first index. The antenna port group comprises a positive integer number of antenna ports. L is a positive integer greater than 1. The first index is an integer.

As an embodiment, the user equipment used for power adjustment is characterized in that the first processing module is further configured to transmit a second wireless signal. Wherein the second wireless signals are used to determine L1 downlink wireless signals from the L downlink wireless signals, the L1 downlink wireless signals being a subset of the L downlink wireless signals, the first downlink wireless signals belonging to the L1 downlink wireless signals. L1 is a positive integer less than or equal to L.

As an embodiment, the user equipment used for power adjustment is characterized in that the first processing module is further configured to transmit K uplink wireless signals in K time windows respectively. Wherein any two of the K time windows are orthogonal, a measurement for a first uplink wireless signal being one of the K uplink wireless signals is used to determine a second path loss. The downlink signaling is used to determine the second path loss, which is used to determine at least the former of { the first reference power, the second reference power }. The K is a positive integer greater than 1.

As an embodiment, the above user equipment used for power adjustment is characterized in that the target first signaling is the latest first signaling in the R first signaling, and the target first signaling includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS, HARQ process number, RV, NDI }.

The application discloses a base station device used for power adjustment, which comprises the following modules:

a second processing module: used for sending the downstream signalling;

a first receiving module: for receiving a first wireless signal.

As an embodiment, the above base station device for power adjustment is characterized in that the second processing module is further configured to transmit at least the former of { R first signaling, Q second signaling }. Wherein the R first signaling is used to determine R first offsets, the Q second signaling is used to determine Q second offsets, the sum of the first reference power and the R first offsets is linearly related, and the sum of the second reference power and the Q second offsets is linearly related. And R and Q are respectively positive integers.

As an embodiment, the above-mentioned base station apparatus for power adjustment is characterized in that the first difference value is equal to a difference between the limit power and the third reference power. The third reference power is determined by the first reference power and the second reference power; or the third reference power is equal to the first reference power.

As an embodiment, the base station device used for power adjustment is characterized in that the second processing module is further configured to transmit L downlink wireless signals. Wherein the L downlink wireless signals are respectively transmitted by L antenna port groups, a measurement for a first downlink wireless signal is used to determine a first path loss, the first downlink wireless signal being one of the L downlink wireless signals, the first path loss being used to determine at least the former of { the first reference power, the second reference power }. The downlink signaling is used to determine a first index, and the index of the first downlink wireless signal in the L downlink wireless signals is the first index. The antenna port group comprises a positive integer number of antenna ports. L is a positive integer greater than 1. The first index is an integer.

As an embodiment, the base station device used for power adjustment is characterized in that the second processing module is further configured to receive a second wireless signal. Wherein the second wireless signals are used to determine L1 downlink wireless signals from the L downlink wireless signals, the L1 downlink wireless signals being a subset of the L downlink wireless signals, the first downlink wireless signals belonging to the L1 downlink wireless signals. L1 is a positive integer less than or equal to L.

As an embodiment, the base station device used for power adjustment is characterized in that the second processing module is further configured to receive K uplink wireless signals in K time windows respectively. Wherein any two of the K time windows are orthogonal, a measurement for a first uplink wireless signal being one of the K uplink wireless signals is used to determine a second path loss. The downlink signaling is used to determine the second path loss, which is used to determine at least the former of { the first reference power, the second reference power }. The K is a positive integer greater than 1.

As an embodiment, the above base station device for power adjustment is characterized in that the target first signaling is the latest first signaling in the R first signaling, and the target first signaling includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS, HARQ process number, RV, NDI }.

As an example, compared with the conventional scheme, the method has the following advantages:

in a system using multi-antenna beamforming, when uplink and downlink have no channel reciprocity, the long-term channel fading variation of the uplink channel is difficult to be obtained by the measurement of the UE. Under the condition, the method allows the base station to timely find the long-term channel fading change of the uplink channel through the measurement of the uplink signal, and timely inform the UE of reporting the PHR according to the current channel state by using MAC CE signaling or physical layer signaling.

In a system using multi-antenna beamforming, when different beamforming directions are used for uplink and downlink, long-term channel fading variation of uplink channel is difficult to observe through UE-side measurement. Under the condition, the base station is allowed to utilize MAC CE signaling or physical layer signaling to timely inform the UE to feed back PHR corresponding to the current uplink beam forming direction according to the scheduling condition.

The PHR corresponding to different downlink transmit antenna port groups are distinguished by the first index, which helps the base station to optimize the scheduling of uplink transmission according to the channel characteristics corresponding to the specifically used downlink transmit antenna port groups.

Under the condition that the uplink and downlink channels do not have reciprocity, the base station estimates the uplink path loss by using the uplink wireless signal, and notifies the uplink path loss to the UE through the MAC CE signaling or the physical layer signaling, so that the PH calculation of the UE is more accurate.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:

fig. 1 shows a flow diagram of wireless transmission according to an embodiment of the application;

fig. 2 shows a flow diagram of wireless transmission according to another embodiment of the present application;

fig. 3 shows a timing diagram of R first signaling, Q second signaling, downlink signaling, and a first wireless signal according to an embodiment of the application;

fig. 4 shows a timing diagram of R first signaling, Q second signaling, downlink signaling, and a first wireless signal according to another embodiment of the present application;

fig. 5 shows a schematic diagram of a relationship between L downlink radio signals and a first difference value according to an embodiment of the present application;

fig. 6 is a diagram illustrating a relationship between K uplink wireless signals and a first difference value according to an embodiment of the present application;

fig. 7 is a diagram illustrating resource mapping of L downlink wireless signals in a time-frequency domain according to an embodiment of the present application;

fig. 8 shows a block diagram of a processing device for use in a UE according to an embodiment of the present application;

fig. 9 shows a block diagram of a processing device for use in a base station according to an embodiment of the present application;

Detailed Description

Example 1

Embodiment 1 illustrates a flow chart of wireless transmission, as shown in fig. 1. In fig. 1, base station N1 is the serving cell maintenance base station for UE U2. In fig. 1, the steps in block F1, block F2, and block F3, respectively, are optional. If block F2 exists, block F1 also exists.

For N1, L downlink wireless signals are transmitted in step S101; receiving a second wireless signal in step S102; transmitting R first signaling in step S11; transmitting Q second signaling in step S103; sending downlink signaling in step S12; the first wireless signal is received in step S13.

For U2, L downlink wireless signals are received in step S201; transmitting a second wireless signal in step S202; receiving R first signaling in step S21; receiving Q second signaling in step S203; receiving downlink signaling in step S22; the first wireless signal is transmitted in step S23.

In embodiment 1, the downlink signaling triggers the sending of the first wireless signal, where the first wireless signal includes a first report, and the first report is used by the N1 to determine a first difference. The downlink signaling is MAC CE signaling or physical layer signaling. { first reference power, second reference power } at least the former of which is used by the U2 to determine the first difference value, the first reference power and the second reference power being powers estimated for uplink channel transmission, respectively. The R first signaling are used by the U2 to determine R first offsets, respectively, the Q second signaling are used by the U2 to determine Q second offsets, respectively, the sum of the first reference power and the R first offsets is linearly related, and the sum of the second reference power and the Q second offsets is linearly related. And R and Q are respectively positive integers. The L downlink wireless signals are transmitted by L antenna port groups, respectively, a measurement for a first downlink wireless signal, which is one of the L downlink wireless signals, is used by the U2 to determine a first path loss, which is used by the U2 to determine at least the former of { the first reference power, the second reference power }. The downlink signaling is used by the U2 to determine a first index, the index of the first downlink wireless signal in the L downlink wireless signals being the first index. The antenna port group comprises a positive integer number of antenna ports. L is a positive integer greater than 1. The first index is an integer. The second wireless signals are used by the N1 to determine L1 downlink wireless signals from the L downlink wireless signals, the L1 downlink wireless signals being a subset of the L downlink wireless signals, the first downlink wireless signals belonging to the L1 downlink wireless signals. L1 is a positive integer less than or equal to L.

As sub-embodiment 1 of embodiment 1, the first difference is carried by higher layer signaling.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, the higher layer signaling is MAC CE signaling.

As a sub-embodiment 2 of embodiment 1, the downlink signaling is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).

As a sub-embodiment of sub-embodiment 2 of embodiment 1, the downlink physical layer control channel is a PDCCH.

As a sub-embodiment of sub-embodiment 2 of embodiment 1, the downlink physical layer control channel is sPDCCH.

As a sub-embodiment of sub-embodiment 2 of embodiment 1, the downlink physical layer control channel is an NR-PDCCH.

As a sub-embodiment 3 of embodiment 1, the downlink signaling is transmitted on a downlink physical layer data channel (i.e. a downlink channel capable of carrying physical layer data).

As a sub-embodiment of sub-embodiment 3 of embodiment 1, the downlink physical layer data channel is a PDSCH.

As a sub-embodiment of sub-embodiment 3 of embodiment 1, said downlink physical layer data channel is sPDSCH.

As sub-embodiment 4 of embodiment 1, the downlink signaling further includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS, HARQ process number, RV, NDI }.

As a sub-embodiment of sub-embodiment 4 of embodiment 1, the downlink signaling is physical layer signaling.

As sub-embodiment 5 of embodiment 1, the first report includes a PHR.

As sub-example 6 of example 1, the first difference is PH.

As sub-embodiment 7 of embodiment 1, the unit of the first difference is dB (decibel).

As sub-embodiment 8 of embodiment 1, the first radio signal includes at least one of { uplink data, uplink control information }.

As sub-embodiment 9 of embodiment 1, the first wireless signal indicates first indication information, the first indication information being applied to the first difference value. The first indication information indicates whether a MAC Entity (Entity) employs power backoff.

As a sub-embodiment 10 of embodiment 1, the first wireless signal is transmitted on an uplink physical layer data channel (i.e., an uplink channel that can be used to carry physical layer data).

As a sub-embodiment of sub-embodiment 10 of embodiment 1, the uplink physical layer data channel is a PUSCH.

As a sub-embodiment of sub-embodiment 10 of embodiment 1, the uplink physical layer data channel is an sPUSCH.

As a sub-embodiment 11 of embodiment 1, the first signaling is dynamic signaling.

As a sub-embodiment 12 of embodiment 1, the first signaling is dynamic signaling for UpLink Grant (UpLink Grant).

As sub-embodiment 13 of embodiment 1, the first signaling indicates the first offset.

As a sub-embodiment 14 of embodiment 1, the first signaling is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).

As a sub-embodiment of sub-embodiment 14 of embodiment 1, the downlink physical layer control channel is a PDCCH.

As a sub-embodiment of sub-embodiment 14 of embodiment 1, the downlink physical layer control channel is sPDCCH.

As a sub-embodiment of sub-embodiment 14 of embodiment 1, the downlink physical layer control channel is an NR-PDCCH.

As sub-embodiment 15 of embodiment 1, the first offset is indicated by TPC.

As sub-embodiment 16 of embodiment 1, the first reference power is in dBm (millidecibels).

As sub-embodiment 17 of embodiment 1, the first reference power is linearly related to { first component, second component, third component, eighth component, the first path loss } respectively, linear coefficients between the first reference power and { the first component, the second component, the third component, the eighth component } are 1 respectively, a linear coefficient between the first reference power and the first path loss is a first coefficient, and the first coefficient is a non-negative real number less than or equal to 1. Namely:

P_ref1＝10log₁₀(M_PUSCH,c(i))+P_{O_PUSCH,c}(j)+α_c(j)·PL_c,1+Δ_TF,c(i)+f_c(i)

wherein, P_ref1，10log₁₀(M_PUSCH,c(i))，P_{O_PUSCH,c}(j)，α_c(j)，PL_c,1，Δ_TF,c(i) And f_c(i) The first reference power, the first component, the second component, the first coefficient, the first path loss, the third component, and the eighth component, respectively. The M is_PUSCH,c(i) Said P is_{O_PUSCH,c}(j) Said α is_c(j) Said Δ_TF,c(i) And f is_c(i) Reference is made to TS36.213 for a detailed definition of (d).

As a sub-embodiment of sub-embodiment 17 of embodiment 1, the sum of the eighth component and the R first offsets is linearly related, and a linear coefficient between the sum of the eighth component and the R first offsets is 1.

As a sub-embodiment of sub-embodiment 17 of embodiment 1, a sum of the R first offsets is equal to the f_c(i)。

As a sub-embodiment of sub-embodiment 17 of embodiment 1, the second component is configured by higher layer signaling.

As a sub-embodiment of sub-embodiment 17 of embodiment 1, the second component is cell common.

As a sub-embodiment 18 of embodiment 1, the second signaling is dynamic signaling.

As a sub-embodiment 19 of embodiment 1, the second signaling is dynamic signaling for DownLink Grant (DownLink Grant).

As sub-embodiment 20 of embodiment 1, the second signaling indicates the second offset.

As a sub-embodiment 21 of embodiment 1, the second signaling is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).

As a sub-embodiment of sub-embodiment 21 of embodiment 1, the downlink physical layer control channel is a PDCCH.

As a sub-embodiment of sub-embodiment 21 of embodiment 1, the downlink physical layer control channel is sPDCCH.

As a sub-embodiment of sub-embodiment 21 of embodiment 1, the downlink physical layer control channel is an NR-PDCCH.

As a sub-embodiment 22 of embodiment 1, the second offset is indicated by TPC.

As a sub-embodiment 23 of embodiment 1, the unit of the second reference power is dBm.

As sub-embodiment 24 of embodiment 1, the second reference powers are linearly related to { fourth component, fifth component, sixth component, seventh component, ninth component, the first path loss } respectively, and linear coefficients between the second reference powers and { the fourth component, the fifth component, the sixth component, the seventh component, the ninth component, the first path loss } are 1 respectively. Namely:

P_ref2＝P_{0_PUCCH}+PL_c,1+h(n_CQI,n_HARQ,n_SR)+Δ_{F_PUCCH}(F)+Δ_TxD(F')+g(i)

wherein, P_ref2，P_{0_PUCCH}，PL_c,1，h(n_CQI,n_HARQ,n_SR)，Δ_{F_PUCCH}(F)，Δ_TxD(F') and g (i) are the second reference power, the seventh component,the first path loss, the fourth component, the fifth component, the sixth component, and the ninth component. The P is_{0_PUCCH}H (n) as defined above_CQI,n_HARQ,n_SR) Said Δ_{F_PUCCH}(F) Said Δ_TxD(F') and said g (i) are defined in detail with reference to TS 36.213.

As a sub-embodiment of sub-embodiment 24 of embodiment 1, the sum of the ninth component and the Q second offsets is linearly related, and the linear coefficient between the ninth component and the sum of the Q second offsets is 1.

As a sub-embodiment of sub-embodiment 24 of embodiment 1, a sum of the Q second offsets equals the g (i).

As a sub-embodiment of sub-embodiment 24 of embodiment 1, the fifth component is configured by higher layer signaling.

As a sub-embodiment of sub-embodiment 24 of embodiment 1, the fifth component is cell-common.

As a sub-embodiment of sub-embodiment 24 of embodiment 1, the sixth component is configured by higher layer signaling.

As a sub-embodiment of sub-embodiment 24 of embodiment 1, the sixth component is cell-common.

As a sub-embodiment of sub-embodiment 24 of embodiment 1, the seventh component is configured by higher layer signaling.

As a sub-embodiment of sub-embodiment 24 of embodiment 1, the seventh component is cell-common.

As sub-embodiment 25 of embodiment 1, linear coefficients between the second reference power and { seventh component, ninth component, the first path loss } are 1, respectively. Namely:

P_ref2＝P_{0_PUCCH}+PL_c,1+g(i)

wherein, P_ref2，P_{0_PUCCH}，PL_c,1And g (i) is the second reference power, respectivelyThe seventh component, the first path loss, and the ninth component. The P is_{0_PUCCH}And said detailed definition of g (i) refers to TS 36.213.

As a sub-embodiment 26 of embodiment 1, the third reference power is equal to the base 10 logarithm of the sum of the linear value of the first reference power and the linear value of the second reference power multiplied by 10. Namely:

wherein, P_ref3，P_ref1And P is_ref2The third reference power, the first reference power and the second reference power, respectively.

As a sub-embodiment 27 of embodiment 1, the third reference power is equal to said first reference power, i.e.:

P_ref3＝P_ref1

wherein, P_ref3And P_ref1The third reference power and the first reference power, respectively.

As a sub-embodiment 28 of embodiment 1, the first difference value is equal to the difference between the limiting power and the third reference power, i.e.:

D＝P_r-P_ref3

wherein, D, P_rAnd P_ref3The first difference, the limit power and the third reference power, respectively.

As a sub-embodiment of sub-embodiment 28 of embodiment 1, the unit of the limiting power is dBm.

As a sub-embodiment of sub-embodiment 28 of embodiment 1, the limiting power is

The above-mentioned

See TS36.213 for specific definitions of (d).

As a sub-embodiment of sub-embodiment 28 of embodiment 1, the limiting power is P_CMAX,c(i) Said P is_CMAX,c(i) See TS36.213 for specific definitions of (d).

As a sub-embodiment of sub-embodiment 28 of embodiment 1, the limiting power is indicated by the first wireless signal.

As a sub-embodiment 29 of embodiment 1, the antenna port is formed by superimposing a plurality of antennas through antenna Virtualization (Virtualization), and mapping coefficients of the plurality of antennas to the antenna port form a beamforming vector. The beamforming vector is generated by a Kronecker product of an analog beamforming vector and a digital beamforming vector.

As a sub-embodiment of sub-embodiment 29 of embodiment 1, different ones of the antenna ports in one of the antenna port groups correspond to the same analog beamforming vector.

As a sub-embodiment of sub-embodiment 29 of embodiment 1, different ones of the antenna ports in one of the antenna port groups correspond to different ones of the digital beamforming vectors.

As a sub-embodiment of sub-embodiment 29 of embodiment 1, different ones of the antenna port groups correspond to different ones of the analog beamforming vectors.

As a sub-embodiment 30 of embodiment 1, the number of antenna ports included in different antenna port groups is the same.

As a sub-embodiment 31 of embodiment 1, there is at least two antenna port groups that include different numbers of the antenna ports.

As a sub-embodiment 32 of embodiment 1, the downlink wireless signal includes a positive integer number of downlink sub-signals, and any one of the downlink wireless signals includes a downlink sub-signal corresponding to an antenna port in a corresponding antenna port group.

As a sub-embodiment of sub-embodiment 32 of embodiment 1, downlink sub-signals included in any one of the downlink wireless signals are transmitted by antenna ports in a corresponding antenna port group.

As sub-embodiment 33 of embodiment 1, the first downlink wireless signal includes M downlink sub-signals, and the first path loss is equal to an average transmission power of the M downlink sub-signals minus an average RSRP of the M downlink sub-signals. And M is a positive integer.

As a sub-embodiment of sub-embodiment 33 of embodiment 1, said M is equal to 1.

As a sub-embodiment of sub-embodiment 33 of embodiment 1, the M is greater than 1.

As a sub-embodiment 34 of embodiment 1, the L downlink wireless signals include one or more of { SS, MIB/SIB, CSI-RS, DMRS }.

As a sub-embodiment 35 of embodiment 1, the first index is a non-negative integer no greater than the L.

As a sub-embodiment 36 of embodiment 1, time domain resources occupied by the L downlink wireless signals are mutually orthogonal.

As a sub-embodiment 37 of embodiment 1, the second wireless signal indicates an index of each of the L1 downlink wireless signals in the L downlink wireless signals.

As a sub-embodiment 38 of embodiment 1, the target first signaling is the latest first signaling in the R first signaling, and the target first signaling includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS, HARQ process number, RV, NDI }.

As sub-example 39 of example 1, block F1, block F2 and block F3 of fig. 1 all exist.

As sub-example 39 of example 1, blocks F1 and F2 in fig. 1 are present and block F3 is not present.

As sub-example 40 of example 1, block F1 in fig. 1 is present, and blocks F2 and F3 are not present.

As sub-example 41 of example 1, blocks F1 and F3 in fig. 1 are present and block F2 is not present.

As a sub-embodiment 42 of embodiment 1, blocks F1 and F2 in fig. 1 are not present and block F3 is present.

As a sub-example 43 of example 1, block F1, block F2, and block F3 of fig. 1 are all absent.

Example 2

Embodiment 2 illustrates a flow chart of wireless transmission, as shown in fig. 2. In fig. 2, base station N3 is the serving cell maintenance base station for UE U4. In fig. 2, the steps in block F4 and block F5, respectively, are optional.

For N3, K uplink wireless signals are received in K time windows respectively in step S301; transmitting R first signaling in step S31; transmitting Q second signaling in step S302; sending downlink signaling in step S32; the first wireless signal is received in step S33.

For U2, K uplink wireless signals are respectively transmitted in K time windows in step S401; receiving R first signaling in step S41; receiving Q second signaling in step S402; receiving downlink signaling in step S42; the first wireless signal is transmitted in step S43.

In embodiment 2, the downlink signaling triggers the transmission of the first wireless signal comprising a first report which is used by the N3 to determine a first difference value. The downlink signaling is MAC CE signaling or physical layer signaling. { first reference power, second reference power } at least the former of which is used by the U4 to determine the first difference value, the first reference power and the second reference power being powers estimated for uplink channel transmission, respectively. The R first signaling are used by the U4 to determine R first offsets, respectively, the Q second signaling are used by the U4 to determine Q second offsets, respectively, the sum of the first reference power and the R first offsets is linearly related, and the sum of the second reference power and the Q second offsets is linearly related. And R and Q are respectively positive integers. Any two of the K time windows are orthogonal, and a measurement for a first uplink wireless signal, which is one of the K uplink wireless signals, is used by the N3 to determine a second path loss. The downlink signaling is used by the U4 to determine the second path loss, which is used by the U4 to determine at least the former of { the first reference power, the second reference power }. The K is a positive integer greater than 1.

As sub embodiment 1 of embodiment 2, the first reference power is linearly related to { first component, second component, third component, eighth component, the second path loss } respectively, linear coefficients between the first reference power and { the first component, the second component, the third component, the eighth component } are 1 respectively, a linear coefficient between the first reference power and the second path loss is a first coefficient, and the first coefficient is a non-negative real number less than or equal to 1. Namely:

P_ref1＝10log₁₀(M_PUSCH,c(i))+P_{O_PUSCH,c}(j)+α_c(j)·PL_c,2+Δ_TF,c(i)+f_c(i)

wherein, P_ref1，10log₁₀(M_PUSCH,c(i))，P_{O_PUSCH,c}(j)，α_c(j)，PL_c,2，Δ_TF,c(i) And f_c(i) The first reference power, the first component, the second component, the first coefficient, the second path loss, the third component, and the eighth component, respectively. The M is_PUSCH,c(i) Said P is_{O_PUSCH,c}(j) Said α is_c(j) Said Δ_TF,c(i) And f is_c(i) Reference is made to TS36.213 for a detailed definition of (d).

As sub-embodiment 2 of embodiment 2, the second reference powers are linearly related to { fourth component, fifth component, sixth component, seventh component, ninth component, the second path loss } respectively, and linear coefficients between the second reference powers and { the fourth component, the fifth component, the sixth component, the seventh component, the ninth component, the second path loss } are 1 respectively. Namely:

P_ref2＝P_{0_PUCCH}+PL_c,2+h(n_CQI,n_HARQ,n_SR)+Δ_{F_PUCCH}(F)+Δ_TxD(F')+g(i)

wherein, P_ref2，P_{0_PUCCH}，PL_c,2，h(n_CQI,n_HARQ,n_SR)，Δ_{F_PUCCH}(F)，Δ_TxD(F') and g (i) are the second reference power, the seventh component, the second path loss, the fourth component, the fifth component, the sixth component and the ninth component, respectively. The P is_{0_PUCCH}H (n) as defined above_CQI,n_HARQ,n_SR) Said Δ_{F_PUCCH}(F) Said Δ_TxD(F') and said g (i) are defined in detail with reference to TS 36.213.

As sub-embodiment 3 of embodiment 2, the second reference powers are linearly related to { seventh component, ninth component, the second path loss } respectively, and the linear coefficients between the second reference powers and { the seventh component, the ninth component, the second path loss } are 1, respectively. Namely:

P_ref2＝P_{0_PUCCH}+PL_c,2+g(i)

wherein, P_ref2，P_{0_PUCCH}，PL_c,2And g (i) is the second reference power, the seventh component, the second path loss, and the ninth component, respectively. The P is_{0_PUCCH}And said detailed definition of g (i) refers to TS 36.213.

As sub-embodiment 4 of embodiment 2, the K uplink wireless signals correspond to the same transmit antenna port.

As sub-embodiment 5 of embodiment 2, the K uplink wireless signals include one or more of { RACH Preamble (Preamble), SRS, DMRS }.

As sub-embodiment 6 of embodiment 2, K beamforming vectors are respectively used by the N3 for receiving the K uplink wireless signals.

As sub-embodiment 7 of embodiment 2, the downlink signaling indicates the second path loss.

As a sub-embodiment 8 of embodiment 2, the second path loss is equal to the transmission power of the first uplink wireless signal minus RSRP of the first uplink wireless signal.

As a sub-embodiment 9 of embodiment 2, the second path loss is obtained by subtracting RSRP of the first uplink wireless signal from transmission power of the first uplink wireless signal and quantizing the RSRP.

As sub-embodiment 10 of embodiment 2, the measurements for the K uplink wireless signals are used by the N3 to determine K path losses, the second path loss being the smallest of the K path losses.

As sub-embodiment 11 of embodiment 2, the measurements for the K uplink wireless signals are used by the N3 to determine K path losses, the second path loss being the second smallest of the K path losses.

As a sub-embodiment 12 of embodiment 2, the time window comprises a positive integer number of consecutive wideband symbols.

As a sub-embodiment of sub-embodiment 12 of embodiment 2, the wideband symbol is an OFDM symbol.

As one sub-embodiment of sub-embodiment 12 of embodiment 2, the wideband symbol is a DFT-S-OFDM symbol.

As a sub-embodiment of sub-embodiment 12 of embodiment 2, the wideband symbol is an FBMC symbol.

As a sub-embodiment 13 of embodiment 2, the K time windows are consecutive in the time domain.

As a sub-embodiment 14 of embodiment 2, the K time windows are discontinuous in the time domain.

As sub-embodiment 15 of embodiment 2, both block F4 and block F5 of fig. 2 exist.

As a sub-example 16 of example 2, block F4 in fig. 2 exists and block F5 does not exist.

As sub-example 17 of example 2, block F4 in fig. 2 is not present and block F5 is present.

As sub-embodiment 18 of embodiment 2, neither block F4 nor block F5 of fig. 2 is present.

Example 3

Embodiment 3 illustrates a timing diagram of R first signaling, Q second signaling, downlink signaling, and a first wireless signal, as shown in fig. 3. In fig. 3, the indexes of the R first signaling are # {0, 1, 2, …, R-1 }; the indexes of the Q second signaling are # {0, 1, 2, …, Q-1}, respectively.

In embodiment 3, time domain resources occupied by any two of the R first signaling are orthogonal (i.e. do not overlap); time domain resources occupied by any two of the Q second signaling are orthogonal (i.e., do not overlap); time domain resources occupied by any one of the R first signaling and any one of the Q second signaling are orthogonal (i.e., do not overlap). The time domain resource occupied by the first signaling # i is behind the time domain resource occupied by the first signaling # j, i and j are respectively nonnegative integers smaller than R, and i is smaller than j. And the time domain resource occupied by the second signaling # x is behind the time domain resource occupied by the second signaling # y, wherein x and y are non-negative integers smaller than Q respectively, and x is smaller than y. The time domain resource occupied by the downlink signaling is behind the time domain resource occupied by the first signaling #0 and the time domain resource occupied by the second signaling #0, and the time domain resource occupied by the first wireless signal is behind the time domain resource occupied by the downlink signaling.

As sub-embodiment 1 of embodiment 3, the downlink signaling is MAC CE signaling.

As sub-embodiment 2 of embodiment 3, the downlink signaling is physical layer signaling.

As sub-embodiment 3 of embodiment 3, the downlink signaling further includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS, HARQ process number, RV, NDI }.

As a sub-embodiment of sub-embodiment 3 of embodiment 3, the downlink signaling is physical layer signaling.

As sub-embodiment 4 of embodiment 3, the first signaling is dynamic signaling.

As sub-embodiment 5 of embodiment 3, the first signaling is dynamic signaling for UpLink Grant (UpLink Grant).

As sub-embodiment 6 of embodiment 3, the second signaling is dynamic signaling.

As sub-embodiment 7 of embodiment 3, the second signaling is dynamic signaling for DownLink Grant (DownLink Grant).

As a sub-embodiment 8 of embodiment 3, the downlink signaling is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).

As a sub-embodiment 9 of embodiment 3, the downlink signaling is transmitted on a downlink physical layer data channel (i.e. a downlink channel capable of carrying physical layer data).

As a sub-embodiment 10 of embodiment 3, the first wireless signal is transmitted on an uplink physical layer data channel (i.e., an uplink channel that can be used to carry physical layer data).

As a sub-embodiment 11 of embodiment 3, the first signaling is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).

As a sub-embodiment 12 of embodiment 3, the second signaling is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).

As sub-embodiment 13 of embodiment 3, a first signaling #0 is the latest first signaling among the R first signaling, where the first signaling #0 includes scheduling information of the first wireless signal, and the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS, HARQ process number, RV, NDI }.

Example 4

Embodiment 4 illustrates a timing diagram of R first signaling, Q second signaling, downlink signaling, and a first wireless signal, as shown in fig. 4. In fig. 4, the indexes of the R first signaling are # {0, 1, 2, …, R-1 }; the indexes of the Q second signaling are # {0, 1, 2, …, Q-1}, respectively.

In embodiment 4, time domain resources occupied by any two of the R first signaling are orthogonal (i.e. do not overlap); time domain resources occupied by any two of the Q second signaling are orthogonal (i.e., do not overlap); time domain resources occupied by any one of the R first signaling and any one of the Q second signaling are orthogonal (i.e., do not overlap). The time domain resource occupied by the first signaling # i is behind the time domain resource occupied by the first signaling # j, i and j are respectively nonnegative integers smaller than R, and i is smaller than j. And the time domain resource occupied by the second signaling # x is behind the time domain resource occupied by the second signaling # y, wherein x and y are non-negative integers smaller than Q respectively, and x is smaller than y. The time domain resource occupied by the downlink signaling is before the time domain resource occupied by the first signaling #0, and the time domain resource occupied by the first wireless signal is after the time domain resource occupied by the first signaling #0 and the time domain resource occupied by the second signaling # 0.

Example 5

Embodiment 5 illustrates a schematic diagram of a relationship between L downlink wireless signals and a first difference value, as shown in fig. 5.

In embodiment 5, the L downlink wireless signals are respectively transmitted by L antenna port groups, a measurement for a first downlink wireless signal, which is one of the L downlink wireless signals, is used to determine a first path loss, the first path loss is used to determine a first reference power, and the first reference power is used to determine the first difference. The downlink signaling in this application is used to determine a first index, and an index of the first downlink wireless signal in the L downlink wireless signals is the first index. The antenna port group comprises a positive integer number of antenna ports. L is a positive integer greater than 1. The first index is an integer.

In fig. 5, said first difference is equal to the difference between the limiting power and said first reference power, i.e.:

D＝P_r-P_ref1

wherein, D, P_rAnd P_ref1The first difference, the limit power and the first reference power, respectively. The first reference power is linearly related to { a first component, a second component, a third component, an eighth component, and the first path loss }, and linear coefficients between the first reference power and { the first component, the second component, the third component, and the eighth component } are 1, respectively, and a linear coefficient between the first reference power and the first path loss is a first coefficient that is a non-negative real number less than or equal to 1. Namely:

P_ref1＝10log₁₀(M_PUSCH,c(i))+PO_PUSCH_,c(j)+α_c(j)·PL_c,1+Δ_TF,c(i)+f_c(i)

of these, 10log₁₀(M_PUSCH,c(i))，P_{O_PUSCH,c}(j)，α_c(j)，PL_c,1，Δ_TF,c(i) And f_c(i) The first component, the second component, the first coefficient, the first path loss, the third component and the eighth component, respectively. The M is_PUSCH,c(i) Said P is_{O_PUSCH,c}(j) Said α is_c(j) Said Δ_TF,c(i) And f is_c(i) Reference is made to TS36.213 for a detailed definition of (d).

As sub-example 1 of example 5, the unit of the limiting power is dBm.

As sub-embodiment 2 of embodiment 5, the limited power is a maximum transmission power of the first wireless signal in the present application on a serving cell of the UE in the present application.

As sub-embodiment 3 of embodiment 5, the limited power is a maximum transmission power of the first radio signal on the serving cell of the UE calculated according to TS36.101 when MPR, a-MPR, P-MPR, Δ Tc are all 0 dB. Wherein, the detailed descriptions of the MPR, the A-MPR, the P-MPR, and the Δ Tc refer to TS 36.101.

As sub-embodiment 4 of embodiment 5, the limiting power is

The above-mentioned

See TS36.213 for specific definitions of (d).

As sub-embodiment 5 of embodiment 5, the limiting power is indicated by the first wireless signal.

As a sub-embodiment 6 of embodiment 5, the limiting power is P_CMAX,c(i) Said P is_CMAX,c(i) See TS36.213 for specific definitions of (d).

As sub-embodiment 7 of embodiment 5, the antenna port is formed by superimposing a plurality of antennas through antenna Virtualization (Virtualization), and mapping coefficients of the plurality of antennas to the antenna port form a beamforming vector. The beamforming vector is generated by a Kronecker product of an analog beamforming vector and a digital beamforming vector.

As a sub-embodiment of sub-embodiment 7 of embodiment 5, different ones of the antenna ports in one of the antenna port groups correspond to the same analog beamforming vector.

As a sub-embodiment of sub-embodiment 7 of embodiment 5, different ones of the antenna ports in one of the antenna port groups correspond to different ones of the digital beamforming vectors.

As a sub-embodiment of sub-embodiment 7 of embodiment 5, different sets of antenna ports correspond to different ones of the analog beamforming vectors.

As a sub-embodiment 8 of embodiment 5, the number of antenna ports included in different antenna port groups is the same.

As a sub-embodiment 9 of embodiment 5, there are at least two antenna port groups that include different numbers of the antenna ports.

As sub-embodiment 10 of embodiment 5, the downlink wireless signal includes a positive integer number of downlink sub-signals, and any one of the downlink wireless signals includes a downlink sub-signal corresponding to an antenna port in a corresponding antenna port group.

As a sub-embodiment of sub-embodiment 10 of embodiment 5, downlink sub-signals included in any one of the downlink wireless signals are transmitted by antenna ports in a corresponding antenna port group.

As sub-embodiment 11 of embodiment 5, the first downlink wireless signal includes M downlink sub-signals, and the first path loss is equal to an average transmission power of the M downlink sub-signals minus an average RSRP of the M downlink sub-signals. And M is a positive integer.

As a sub-embodiment of sub-embodiment 11 of embodiment 5, said M is equal to 1.

As a sub-embodiment of sub-embodiment 11 of embodiment 5, the M is greater than 1.

As sub-embodiment 12 of embodiment 5, the L downlink radio signals include one or more of { SS, MIB/SIB, CSI-RS, DMRS }.

As a sub-embodiment 13 of embodiment 5, the first index is a non-negative integer no greater than the L.

As sub-embodiment 14 of embodiment 5, time domain resources occupied by the L downlink wireless signals are mutually orthogonal.

As sub-embodiment 15 of embodiment 5, the second radio signal in the present application is used to determine L1 downlink radio signals from the L downlink radio signals, the L1 downlink radio signals are subsets of the L downlink radio signals, and the first downlink radio signal belongs to the L1 downlink radio signals. L1 is a positive integer less than or equal to L.

As a sub-embodiment of sub-embodiment 15 of embodiment 5, the second wireless signal indicates an index of each of the L1 downlink wireless signals in the L downlink wireless signals.

As a sub-embodiment of sub-embodiment 15 of embodiment 5, the measurements for the L downlink wireless signals are respectively used to determine L path losses, and L1 path losses are the path losses of the L path losses respectively corresponding to the L1 downlink wireless signals. Any one of the L1 path losses is less than any one of the L1 path losses that does not belong to the L1 path losses.

As a sub-embodiment of sub-embodiment 15 of embodiment 5, the first path loss is the smallest of the L1 path losses.

As a sub-embodiment of sub-embodiment 15 of embodiment 5, the first path loss is the second smallest of the L1 path losses.

As a sub-embodiment of sub-embodiment 15 of embodiment 5, the second wireless signal indicates the L1 path losses.

Example 6

Embodiment 6 illustrates a schematic diagram of the relationship between K uplink wireless signals and the first difference value, as shown in fig. 6.

In embodiment 6, the K uplink wireless signals are transmitted in K time windows, and K beamforming vectors are used to receive the K uplink wireless signals, respectively. Any two of the K time windows are orthogonal, the K time windows being contiguous in time domain. Measurements for a first uplink wireless signal, which is one of the K uplink wireless signals, are used to determine a second path loss. The second path loss is used to determine { first reference power, second reference power }. { the first reference power, the second reference power } is used to determine the first difference. The K is a positive integer greater than 1.

In fig. 6, the first difference is equal to the difference between the limiting power and a third reference power, which is equal to the base 10 logarithm of the sum of the linear value of the first reference power and the linear value of the second reference power multiplied by 10. Namely:

D＝P_r-P_ref3

wherein, P_ref3，P_ref1，P_ref2D and P_rThe third reference power, the first reference power, the second reference power, the first difference and the limit power, respectively. The first reference power is linearly related to { a first component, a second component, a third component, an eighth component, and a second path loss } respectively, linear coefficients between the first reference power and { the first component, the second component, the third component, and the eighth component } are 1, respectively, linear coefficients between the first reference power and the second path loss are first coefficients, and the first coefficients are non-negative real numbers less than or equal to 1. Namely:

of these, 10log₁₀(M_PUSCH,c(i))，P_{O_PUSCH,c}(j)，α_c(j)，PL_c,2，Δ_TF,c(i) And f_c(i) The first component, the second component, the first coefficient, the second path loss, the third component and the eighth component, respectively. The M is_PUSCH,c(i) Said P is_{O_PUSCH,c}(j) Said α is_c(j) Said Δ_TF,c(i) And f is_c(i) Reference is made to TS36.213 for a detailed definition of (d). The second reference power is linearly related to { fourth component, fifth component, sixth component, seventh component, ninth component, and the second path loss } respectively, and linear coefficients between the second reference power and { the fourth component, the fifth component, the sixth component, the seventh component, the ninth component, and the second path loss } are 1, respectively. Namely:

wherein, P_{0_PUCCH}，h(n_CQI,n_HARQ,n_SR)，Δ_{F_PUCCH}(F)，Δ_TxD(F') and g (i) are the seventh component, the fourth component, the fifth component, the sixth component and the ninth component, respectively. The P is_{0_PUCCH}H (n) as defined above_CQI,n_HARQ,n_SR) Said Δ_{F_PUCCH}(F) Said Δ_TxD(F') and said g (i) are defined in detail with reference to TS 36.213.

As sub-embodiment 1 of embodiment 6, the K uplink wireless signals correspond to the same transmit antenna port.

As sub-embodiment 2 of embodiment 6, the K uplink radio signals include one or more of { RACH Preamble (Preamble), SRS, DMRS }.

As sub-embodiment 3 of embodiment 6, the downlink signaling in this application indicates the second path loss.

As sub-embodiment 4 of embodiment 6, the second path loss is equal to the transmission power of the first uplink wireless signal minus RSRP of the first uplink wireless signal.

As sub-embodiment 5 of embodiment 6, the second path loss is obtained by subtracting RSRP of the first uplink wireless signal from transmission power of the first uplink wireless signal and quantizing the RSRP.

As sub-embodiment 6 of embodiment 6, the measurements for the K uplink wireless signals are used to determine K path losses, the second path loss being the smallest of the K path losses.

As sub-embodiment 7 of embodiment 6, the measurements for the K uplink wireless signals are used to determine K path losses, the second path loss being the second smallest of the K path losses.

As sub-embodiment 8 of embodiment 6, the time window includes a positive integer number of consecutive wideband symbols.

As a sub-embodiment of sub-embodiment 8 of embodiment 6, the wideband symbol is an OFDM symbol.

As a sub-embodiment of sub-embodiment 8 of embodiment 6, the wideband symbol is a DFT-S-OFDM symbol.

As a sub-embodiment of sub-embodiment 8 of embodiment 6, the wideband symbol is an FBMC symbol.

Example 7

Embodiment 7 illustrates a schematic diagram of resource mapping of L downlink wireless signals in a time-frequency domain, as shown in fig. 7.

In embodiment 7, the time domain resources occupied by the L downlink wireless signals are mutually orthogonal. The L downlink wireless signals are respectively transmitted by L antenna port groups, and each antenna port group comprises a positive integer antenna port. The downlink wireless signal comprises a positive integer number of downlink sub-signals. The number of downlink sub-signals included in any given downlink wireless signal is equal to the number of antenna ports included in the corresponding antenna port group. And the downlink sub-signals included in any given downlink wireless signal are respectively sent by the antenna ports included in the corresponding antenna port group.

As sub-embodiment 1 of embodiment 7, fig. 7 depicts one transmission of the L downlink radio signals, which are transmitted periodically.

As sub-embodiment 2 of embodiment 7, the downlink wireless signal is broadband.

As a sub-embodiment of sub-embodiment 2 of embodiment 7, a system bandwidth is divided into a positive integer number of frequency domain regions, the downlink wireless signals appear in all frequency domain regions within the system bandwidth, and a bandwidth corresponding to the frequency domain region is equal to a difference of frequencies of frequency units in which the downlink wireless signals appear twice next to each other.

As sub-embodiment 3 of embodiment 7, the downlink radio signal is narrowband.

As a sub-embodiment of sub-embodiment 3 of embodiment 7, the system bandwidth is divided into positive integer frequency domain regions, and the downlink wireless signals only appear on a part of the frequency domain regions.

As sub-embodiment 4 of embodiment 7, the downlink radio signal adopts a CSI-RS pattern in one time unit.

As sub-embodiment 5 of embodiment 7, in one time unit, the downlink radio signal employs a DMRS pattern.

As a sub-embodiment of sub-embodiment 5 of embodiment 7, the time unit is a slot (slot).

As one sub-embodiment of sub-embodiment 5 of embodiment 7, the unit of time is a sub-frame.

As a sub-embodiment of sub-embodiment 5 of embodiment 7, the time unit is 1 ms.

Example 8

Embodiment 8 illustrates a block diagram of a processing apparatus used in a UE, as shown in fig. 8. In fig. 8, the UE apparatus 200 is mainly composed of a first processing module 201 and a first transmitting module 202.

In embodiment 8, the first processing module 201 is configured to receive a downlink signaling; the first sending module 202 is configured to send a first wireless signal.

In embodiment 8, the downlink signaling triggers transmission of the first wireless signal, and the first wireless signal includes a first report, and the first report is used to determine a first difference. The downlink signaling is MAC CE signaling or physical layer signaling. { first reference power, second reference power } at least the former of which is used by the first transmission module 202 to determine the first difference value, the first reference power and the second reference power being powers estimated for uplink channel transmission, respectively.

As sub-embodiment 1 of embodiment 8, the first processing module 201 is further configured to receive at least the former one of the { R first signaling, Q second signaling }. Wherein the R first signaling signals are respectively used by the first sending module 202 to determine R first offsets, the Q second signaling signals are respectively used by the first sending module 202 to determine Q second offsets, the sum of the first reference power and the R first offsets is linearly related, and the sum of the second reference power and the Q second offsets is linearly related. And R and Q are respectively positive integers.

As sub-embodiment 2 of embodiment 8, the first difference is equal to a difference between a limiting power and a third reference power, the third reference power being determined by the first reference power and the second reference power.

As sub-embodiment 3 of embodiment 8, the first difference is equal to a difference between the limiting power and a third reference power, the third reference power being equal to the first reference power.

As sub-embodiment 4 of embodiment 8, the first processing module 201 is further configured to receive L downlink wireless signals. Wherein the L downlink radio signals are transmitted by L antenna port groups, the measurement for a first downlink radio signal is used by the first transmitting module 202 to determine a first path loss, the first downlink radio signal is one of the L downlink radio signals, and the first path loss is used by the first transmitting module 202 to determine at least the former of { the first reference power, the second reference power }. The downlink signaling is used by the first sending module 202 to determine a first index, and the index of the first downlink wireless signal in the L downlink wireless signals is the first index. The antenna port group comprises a positive integer number of antenna ports. L is a positive integer greater than 1. The first index is an integer.

As sub-embodiment 5 of embodiment 8, the first processing module 201 is further configured to transmit a second wireless signal. Wherein the second wireless signals are used to determine L1 downlink wireless signals from the L downlink wireless signals, the L1 downlink wireless signals being a subset of the L downlink wireless signals, the first downlink wireless signals belonging to the L1 downlink wireless signals. L1 is a positive integer less than or equal to L.

As sub-embodiment 6 of embodiment 8, the first processing module 201 is further configured to send K uplink wireless signals in K time windows, respectively. Wherein any two of the K time windows are orthogonal, a measurement for a first uplink wireless signal being one of the K uplink wireless signals is used to determine a second path loss. The downlink signaling is used by the first sending module 202 to determine the second path loss, which is used by the first sending module 202 to determine at least the former of { the first reference power, the second reference power }. The K is a positive integer greater than 1.

As sub-embodiment 7 of embodiment 8, the target first signaling is the latest first signaling among the R first signaling, and the target first signaling includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS, HARQ process number, RV, NDI }.

Example 9

Embodiment 9 illustrates a block diagram of a processing apparatus used in a base station, as shown in fig. 9. In fig. 9, the base station apparatus 300 is mainly composed of a second processing module 301 and a first receiving module 302.

In embodiment 9, the second processing module 301 is configured to send a downlink signaling; the first receiving module 302 is configured to receive a first wireless signal.

In embodiment 9, the downlink signaling triggers sending of the first wireless signal, where the first wireless signal includes a first report, and the first report is used by the first receiving module 302 to determine a first difference. The downlink signaling is MAC CE signaling or physical layer signaling. { first reference power, second reference power } at least the former of which is power estimated for uplink channel transmission, respectively, is used for determining the first difference.

As sub-embodiment 1 of embodiment 9, the second processing module 301 is further configured to send at least the former of { R first signaling, Q second signaling }. Wherein the R first signaling is used to determine R first offsets, the Q second signaling is used to determine Q second offsets, the sum of the first reference power and the R first offsets is linearly related, and the sum of the second reference power and the Q second offsets is linearly related. And R and Q are respectively positive integers.

As sub-embodiment 2 of embodiment 9, the first difference value is equal to a difference between a limiting power and a third reference power, the third reference power being determined by the first reference power and the second reference power.

As sub-embodiment 3 of embodiment 9, the first difference is equal to a difference between the limiting power and a third reference power, the third reference power being equal to the first reference power.

As sub-embodiment 4 of embodiment 9, the second processing module 301 is further configured to send L downlink wireless signals. Wherein the L downlink wireless signals are respectively transmitted by L antenna port groups, a measurement for a first downlink wireless signal is used to determine a first path loss, the first downlink wireless signal being one of the L downlink wireless signals, the first path loss being used to determine at least the former of { the first reference power, the second reference power }. The downlink signaling is used to determine a first index, and the index of the first downlink wireless signal in the L downlink wireless signals is the first index. The antenna port group comprises a positive integer number of antenna ports. L is a positive integer greater than 1. The first index is an integer.

As sub-embodiment 5 of embodiment 9, the second processing module 301 is further configured to receive a second wireless signal. Wherein the second wireless signal is used by the second processing module 301 to determine L1 downlink wireless signals from the L downlink wireless signals, the L1 downlink wireless signals are a subset of the L downlink wireless signals, and the first downlink wireless signal belongs to the L1 downlink wireless signals. L1 is a positive integer less than or equal to L.

As sub-embodiment 6 of embodiment 9, the second processing module 301 is further configured to receive K uplink wireless signals in K time windows, respectively. Wherein any two of the K time windows are orthogonal, and a measurement for a first uplink wireless signal, which is one of the K uplink wireless signals, is used by the second processing module 301 to determine a second path loss. The downlink signaling is used to determine the second path loss, which is used to determine at least the former of { the first reference power, the second reference power }. The K is a positive integer greater than 1.

As sub-embodiment 7 of embodiment 9, the target first signaling is the latest first signaling among the R first signaling, and the target first signaling includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, MCS, HARQ process number, RV, NDI }.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE or the terminal in the application comprises but is not limited to a mobile phone, a tablet computer, a notebook, an internet card, an internet of things communication module, vehicle-mounted communication equipment, an NB-IOT terminal, an eMTC terminal and other wireless communication equipment. The base station or system device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method in a user equipment used for power adjustment, comprising the steps of:

a step a2. receiving L downlink radio signals;

-step a. receiving downlink signalling;

-step b. transmitting a first wireless signal;

wherein the downlink signaling triggers transmission of the first wireless signal, the first wireless signal including a first report, the first report being used to determine a first difference; the downlink signaling is physical layer signaling; at least the former of a first reference power and a second reference power, which are powers estimated for uplink channel transmission, respectively, are used to determine the first difference; the L downlink wireless signals are respectively transmitted by L antenna port groups, a measurement for a first downlink wireless signal is used to determine a first path loss, the first downlink wireless signal being one of the L downlink wireless signals, the first path loss is used to determine at least the former of the first reference power and the second reference power; the downlink signaling is used to determine a first index, an index of the first downlink wireless signal among the L downlink wireless signals being the first index; the antenna port group comprises a positive integer number of antenna ports; l is a positive integer greater than 1; the first index is an integer; different ones of the antenna ports in one of the antenna port groups correspond to different digital beamforming vectors or different analog beamforming vectors; the downlink wireless signals comprise positive integer downlink sub-signals; the number of downlink sub-signals included in any given downlink wireless signal is equal to the number of antenna ports included in the corresponding antenna port group; downlink sub-signals included in any given downlink wireless signal are respectively sent by antenna ports included in the corresponding antenna port group; the first downlink wireless signal comprises M downlink sub-signals, wherein M is greater than 1; the first path loss is equal to the average transmission power of the M downlink sub-signals minus the average value of RSRPs of the M downlink sub-signals.

2. The method according to claim 1, wherein said step a further comprises at least step a0 of the following steps a0 and a 1:

-step A0. receiving R first signalling;

-a step a1. receiving Q second signalings;

wherein the R first signaling is used to determine R first offsets, the Q second signaling is used to determine Q second offsets, the sum of the first reference power and the R first offsets is linearly related, and the sum of the second reference power and the Q second offsets is linearly related; and R and Q are respectively positive integers.

3. A method according to claim 1 or 2, characterized in that the first difference value is equal to the difference between the limiting power and a third reference power; the third reference power is determined by the first reference power and the second reference power, or the third reference power is equal to the first reference power.

4. The method according to claim 1 or 2, wherein said step a further comprises the steps of:

step a 3: transmitting a second wireless signal;

wherein the second wireless signals are used to determine L1 downlink wireless signals from the L downlink wireless signals, the L1 downlink wireless signals being a subset of the L downlink wireless signals, the first downlink wireless signals belonging to the L1 downlink wireless signals; l1 is a positive integer less than or equal to L.

5. The method of claim 2, wherein a target first signaling is the latest first signaling among the R first signaling, and wherein the target first signaling comprises scheduling information of the first wireless signal, and wherein the scheduling information comprises at least one of occupied time domain resources, occupied frequency domain resources, MCS, HARQ process number, RV, and NDI.

6. A method in a base station used for power adjustment, comprising the steps of:

a step a2 of transmitting L downlink radio signals;

-step a. sending downlink signalling;

-step b. receiving a first wireless signal;

7. The method according to claim 6, wherein said step A further comprises at least step A0 of the following steps A0 and A1:

-step A0. sending R first signalling;

-a step a1. sending Q second signalling;

8. The method according to claim 6 or 7, characterized in that the first difference value is equal to the difference between the limiting power and a third reference power; the third reference power is determined by the first reference power and the second reference power, or the third reference power is equal to the first reference power.

9. The method according to claim 6 or 7, wherein the step A further comprises the steps of:

step a 3: receiving a second wireless signal;

10. The method of claim 7, wherein a target first signaling is the latest first signaling among the R first signaling, and wherein the target first signaling comprises scheduling information of the first wireless signal, and wherein the scheduling information comprises at least one of occupied time domain resources, occupied frequency domain resources, MCS, HARQ process number, RV and NDI.

11. A user equipment used for power adjustment, comprising:

a first processing module: used for receiving L downlink wireless signals and downlink signaling;

a first sending module: for transmitting a first wireless signal;

12. The UE of claim 11, wherein the first processing module further receives at least R first signaling from among R first signaling and Q second signaling; wherein the R first signaling is used to determine R first offsets, the Q second signaling is used to determine Q second offsets, the sum of the first reference power and the R first offsets is linearly related, and the sum of the second reference power and the Q second offsets is linearly related; and R and Q are respectively positive integers.

13. The UE of claim 11 or 12, wherein the first difference value is equal to a difference between a limiting power and a third reference power; the third reference power is determined by the first reference power and the second reference power, or the third reference power is equal to the first reference power.

14. The user equipment of claim 11 or 12, wherein the first processing module further transmits a second wireless signal; wherein the second wireless signals are used to determine L1 downlink wireless signals from the L downlink wireless signals, the L1 downlink wireless signals being a subset of the L downlink wireless signals, the first downlink wireless signals belonging to the L1 downlink wireless signals; l1 is a positive integer less than or equal to L.

15. The UE of claim 12, wherein the target first signaling is the latest one of the R first signaling, and wherein the target first signaling comprises scheduling information of the first wireless signal, and the scheduling information comprises at least one of occupied time domain resources, occupied frequency domain resources, MCS, HARQ process number, RV, and NDI.

16. A base station device used for power adjustment, comprising:

a second processing module: used for sending L downlink wireless signals and downlink signaling;

a first receiving module: for receiving a first wireless signal;

17. The base station device of claim 16, wherein the second processing module further transmits at least R first signaling from among R first signaling and Q second signaling; wherein the R first signaling is used to determine R first offsets, the Q second signaling is used to determine Q second offsets, the sum of the first reference power and the R first offsets is linearly related, and the sum of the second reference power and the Q second offsets is linearly related; and R and Q are respectively positive integers.

18. Base station device according to claim 16 or 17, characterized in that said first difference value is equal to the difference between the limiting power and a third reference power; the third reference power is determined by the first reference power and the second reference power, or the third reference power is equal to the first reference power.

19. The base station device of claim 16 or 17, wherein the second processing module further receives a second wireless signal; wherein the second wireless signals are used to determine L1 downlink wireless signals from the L downlink wireless signals, the L1 downlink wireless signals being a subset of the L downlink wireless signals, the first downlink wireless signals belonging to the L1 downlink wireless signals; l1 is a positive integer less than or equal to L.

20. The base station apparatus of claim 17, wherein the target first signaling is the latest first signaling among the R first signaling, and the target first signaling comprises scheduling information of the first wireless signal, and the scheduling information comprises at least one of occupied time domain resources, occupied frequency domain resources, MCS, HARQ process number, RV, and NDI.