CN108235420B

CN108235420B - Method and device for power adjustment in UE and base station

Info

Publication number: CN108235420B
Application number: CN201611142497.6A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2016-12-12
Filing date: 2016-12-12
Publication date: 2021-06-25
Anticipated expiration: 2036-12-12
Also published as: CN108235420A

Abstract

The invention discloses a method and a device for power adjustment in a UE (user equipment), a base station. The UE first receives the first information and the second information and then transmits a first wireless signal. Wherein the transmission power of the first wireless signal is a first power, the first power is linearly related to { first component, second component }, respectively, a linear coefficient between the first power and the first component is a first coefficient, and a linear coefficient between the first power and the second component is a second coefficient. The first information is used to determine the first coefficient and the second information is used to determine the second coefficient. The first coefficient is not less than 0 and not more than 1, and the second coefficient is not less than 0 and not more than 1.

Description

Method and device for power adjustment in UE and base station

Technical Field

The present invention relates to a transmission method and apparatus for supporting power adjustment in a wireless communication system, and more particularly, to a transmission scheme and apparatus for supporting power adjustment in a wireless communication system in which a large number of antennas are deployed at a base station.

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 large-scale channel fading experienced by signals using different beamforming vectors. This difference between the large scale channel fading associated with the beam creates new problems for uplink power adjustment.

Disclosure of Invention

The inventor finds through research that in the case of a base station adopting multi-antenna beamforming based on large-scale MIMO, large-scale fading of a channel is determined by two factors, the first factor is a physical distance between two communication parties, and the second factor is a beamforming vector adopted by the base station. In an actual system, the speed of change of the path loss, the measurement mode, and the influence on the uplink power control caused by these two factors are different, and therefore, compensation needs to be performed during the uplink power control.

The present invention discloses a solution to the above finding. It should be noted that, without conflict, the embodiments and features in the embodiments in the UE (User Equipment) of the present application may be applied 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 invention discloses a method used in UE for power adjustment, which comprises the following steps:

-step a. receiving first information and second information;

-step b.

Wherein the transmission power of the first wireless signal is a first power, the first power is linearly related to { first component, second component }, respectively, a linear coefficient between the first power and the first component is a first coefficient, and a linear coefficient between the first power and the second component is a second coefficient. The first information is used to determine the first coefficient and the second information is used to determine the second coefficient. The first coefficient is not less than 0 and not more than 1, and the second coefficient is not less than 0 and not more than 1.

As an embodiment, the above method has a benefit that the first component may reflect the contribution of the physical distance between the UE and the serving base station to the large-scale fading of the channel, i.e. the average of the large-scale fading of the channel between the UE and the serving base station, taking into account all the receive/transmit beamforming vectors; the second component may reflect the deviation between the large-scale fading of the channel and the first component for a particular receive/transmit beamforming vector. The effect of the first and second components on the first power is different and needs to be compensated separately in the first power. Such separate compensation may be achieved by the first coefficient and the second coefficient, and since the first coefficient and the second coefficient are controlled by the first information and the second information, respectively, compensation for the first component and the second component may be performed independently, thereby achieving more flexible control of the first power.

As an embodiment, the first information is cell-common.

As an embodiment, the second information is configured by UE-specific signaling.

As one embodiment, the first information is semi-statically configured.

As one embodiment, the second information is semi-statically configured.

As one embodiment, the second information is dynamically configured.

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

As an embodiment, the second information is carried by higher layer signaling.

As an embodiment, the second information is carried by physical layer signaling.

As an embodiment, the first information explicitly indicates the first coefficient.

As an embodiment, the second information explicitly indicates the second coefficient.

As an embodiment, the unit of the first component is dB and the unit of the second component is dB.

As one embodiment, the second component is a negative number.

As one embodiment, the first coefficient is not equal to the second coefficient.

As an embodiment, the first coefficient is equal to the second coefficient.

As one embodiment, the first coefficient is related to a scheduling type of the first wireless signal.

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 an embodiment, the first coefficient is α_c(j) Said α is_c(j) Is a partial path loss compensation factor related to the scheduling type with index j in the serving cell with index c, the first radio signal is transmitted on the serving cell with index c, and α is_c(j) See TS36.213 for specific definitions of (d).

As an embodiment, the second coefficient is related to a data type of the first wireless Signal, where the data type includes { SRS (Sounding Reference Signal), uplink data, and uplink control information }.

In one embodiment, the first radio signal includes at least one of { SRS, uplink data, uplink control information }.

For one embodiment, the first wireless signal is transmitted on an uplink physical layer data channel.

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).

As one embodiment, the unit of the first power is dBm.

As one embodiment, the first power is P_PUSCH,c(i) Said P is_PUSCH,c(i) Is the transmission power on the PUSCH in the ith subframe in the serving cell with index c, the first radio signal is transmitted on the serving cell with index c. The P is_PUSCH,c(i) See TS36.213 for specific definitions of (d).

As one embodiment, the first power is P_SRS,c(i) Said P is_SRS,c(i) Is the sending power of SRS (Sounding Reference Signal) 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_SRS,c(i) See TS36.213 for specific definitions of (d).

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

As a sub-embodiment of the above embodiment, the third component is 10log₁₀(M_PUSCH,c(i) M) of_PUSCH,c(i) Is the bandwidth in resource block unit allocated to PUSCH in the ith subframe in the serving cell with index c, and the first subframeThe radio signal 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 power is linearly related to a fourth component, and the fourth component is related to the scheduling type corresponding to the first wireless signal. A linear coefficient between the first power and the fourth component is 1.

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

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

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

As an embodiment, the first power and the fifth component are linearly related. A linear coefficient between the first power and the fifth component is 1.

As a sub-embodiment of the above embodiment, the fifth component is related to an MCS (Modulation and Coding Scheme) of the first wireless signal.

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

As a sub-embodiment of the above embodiment, the fifth component is P_{SRS_OFFSET,c}(i) Said P is_{SRS_OFFSET,c}(i) Is the offset of SRS transmission power in the ith subframe in the serving cell with the index of c relative to the PUSCH, and the first wireless signal is in the serving cell with the index of cAnd (4) transmitting on the region. The P is_{SRS_OFFSET,c}(i) See TS36.213 for specific definitions of (d).

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 first Power and the sixth component are linearly related, and a UE-specific TPC (transmit Power Control) is used to determine the sixth component. A linear coefficient between the first power and the sixth component is 1.

As a sub-embodiment of the above embodiment, the K UE-specific TPCs indicate K power offsets, the sum of the sixth component and the K power offsets is linearly related, a linear coefficient between the sum of the sixth component and the K power offsets is 1, and K is a positive integer.

As a sub-embodiment of the above embodiment, the sixth 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).

For one embodiment, the first power is equal to P_CMAX,c(i) Said P is_CMAX,c(i) The first wireless signal is transmitted on the serving cell with the index c, and the transmission power configured by the UE in the ith subframe of the serving cell with the index c is the highest threshold. The P is_CMAX,c(i) See TS36.213 for specific definitions of (d).

For one embodiment, the first power is less than P_CMAX,c(i)。

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

step A0. receives G1 wireless signals;

wherein the G1 wireless signals are respectively transmitted by a G1 antenna port group, measurements for the G1 wireless signals are used to determine the first component, the antenna port group includes a positive integer number of antenna ports, the G1 is a positive integer greater than 1.

As an embodiment, the above method is advantageous in that the determination of the first component takes into account the antenna port groups of a plurality of different base station sides, reflecting an average of path losses between the UE and a serving base station under different base station beamforming vectors.

As one embodiment, the first component is an average of G1 path losses (pathlosses), the G1 path losses being determined from measurements for the G1 wireless signals, respectively.

As an example of the above embodiments, one of the path losses is equal to a transmission Power of the corresponding wireless Signal minus a Reference Signal Received Power (RSRP) of the corresponding wireless Signal.

As one embodiment, the wireless signal is a reference signal.

As one embodiment, the wireless Signal is a CSI-RS (Channel State Information Reference Signal).

As one embodiment, the wireless Signal includes one or more of { PSS (Primary Synchronization Signal), SSS (Secondary Synchronization Signal), MIB (Master Information Block, main Information Block)/SIB (System Information Block), CSI-RS }.

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 formed 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.

For one embodiment, the antenna port group includes one antenna port.

For one embodiment, the antenna port group includes a plurality of the antenna ports.

As an embodiment, there is no one said antenna port belonging to two different said antenna port groups simultaneously.

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

As an embodiment, there are at least two different antenna port groups comprising different numbers of said antenna ports.

In particular, according to one aspect of the invention, it is characterized in that measurements for G2 radio signals are used for determining the second component, the G2 radio signals being a subset of the G1 radio signals, the G2 being a positive integer not greater than the G1.

As an embodiment, the above method has the benefit that the second component reflects the offset of the path loss between the UE and the serving base station from the first component for a given G2 antenna port group, the G2 antenna port group being the antenna port group used to transmit the G2 radio signals. The adjustment of the first power takes into account the second component, so that the power control of the first wireless signal is more accurate and efficient given the G2 antenna port groups.

As an embodiment, another benefit of the above method is that on the premise that the uplink and downlink channels have reciprocity, the UE is allowed to estimate the second component by measuring the G2 wireless signals transmitted in downlink, and complexity and overhead required for estimating the second component are reduced.

As one embodiment, the second component is equal to an average of G2 path losses minus the first component, the G2 path losses being determined by measurements for the G2 wireless signals, respectively.

As a sub-embodiment of the above embodiment, one of the path losses is equal to the transmission power of the corresponding radio signal minus the RSRP of the corresponding radio signal.

As a sub-embodiment of the above embodiment, the average of the G2 path losses is less than a given path loss determined from measurements for any of the G1 wireless signals that do not belong to the G2 wireless signals.

As an example, the G2 is equal to 1.

As one example, the G2 is greater than 1.

-a step a1. transmitting an uplink radio signal;

-step a2. receiving third information.

Wherein the measurement for the uplink wireless signal is used to determine the third information, the third information indicating at least one of { the first component, the second component }.

As an embodiment, the above method has a benefit of supporting the UE to transmit the uplink wireless signal to assist the base station to estimate at least one of { the first component, the second component } in case of no reciprocity in uplink and downlink channels.

As an embodiment, the transmission power of the uplink wireless signal and the first component are linearly related, a linear coefficient between the transmission power of the uplink wireless signal and the first component is the first coefficient, and the third information indicates the second component.

As an embodiment, G1 antenna virtualization vectors are used for receiving the uplink wireless signals, respectively, and G2 antenna virtualization vectors are a subset of the G1 antenna virtualization vectors.

As a sub-implementation of the above embodiment, the first component is equal to an average value of a transmission power of the uplink wireless signal minus G1 received powers, and the G1 received powers are received powers of the uplink wireless signal received by the G1 antenna virtualization vectors, respectively.

As a sub-implementation of the foregoing embodiment, the second component is equal to the average of the transmission power of the uplink wireless signal minus G2 received powers minus the first component, and the G2 received powers are the received powers of the uplink wireless signal received by the G2 antenna virtualization vectors, respectively.

As a sub-embodiment of the above embodiment, the second component is equal to the reference power minus the average of the G2 received powers. As a reference embodiment of this sub-embodiment, the reference power is semi-statically configured. As a reference embodiment of this sub-embodiment, the reference power is UE-specific.

As a sub-embodiment of the above embodiment, an average value of the G2 received powers is not less than a given received power, and the given received power is any one of the G1 received powers that does not belong to the G2 received powers.

As a sub-embodiment of the above embodiment, the received power is RSRP.

As an embodiment, the third information is carried by higher layer signaling.

As a sub-embodiment of the above embodiment, the third information is carried by RRC signaling.

As one embodiment, the third information is semi-statically configured.

As an embodiment, the uplink wireless signal includes one or more of a { RACH (Random Access Channel) Preamble (Preamble), an SRS, and a DMRS (DeModulation reference signal) }.

-a step a3. transmitting the second radio signal.

Wherein the second wireless signals are used to determine G3 wireless signals among the G1 wireless signals, the G2 wireless signals are a subset of the G3 wireless signals, the G3 is a positive integer no greater than G1 and no less than G2.

As one example, the G3 is equal to the G2.

As one embodiment, the G3 is greater than the G2.

As one embodiment, the G3 is smaller than the G1.

As one embodiment, the second wireless signal indicates an index of the G3 wireless signals among the G1 wireless signals.

For one embodiment, the second wireless signal is transmitted on an uplink physical layer data channel.

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

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

As an embodiment, the second wireless signal is transmitted on an uplink 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 Uplink Physical layer Control Channel is a PUCCH (Physical Uplink Control Channel).

As one embodiment, measurements for the G3 wireless signals are used to determine G4 candidate offsets, the second component being one of the G4 candidate offsets.

As a sub-embodiment of the above embodiment, the G3 wireless signals include G4 subsets of wireless signals, each of the subsets of wireless signals including a positive integer number of the wireless signals, the G2 wireless signals being one of the subsets of G4 wireless signals. There is no one said radio signal belonging to two different said subsets of radio signals simultaneously. The G4 candidate offsets are determined by measurements for the G4 subsets of wireless signals, respectively.

As a sub-embodiment of the above embodiment, the second component is the smallest one of the G4 candidate offsets.

-step a4. receiving a first signaling.

Wherein the first signaling is used to determine the G2 wireless signals from the G3 wireless signals.

As an embodiment, the first signaling is physical layer signaling.

As one embodiment, the G2 is 1, and the first signaling indicates an index of the G2 radio signals among the G3 radio signals.

As an embodiment, the 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, NDI (New Data Indicator), RV (Redundancy Version), HARQ (Hybrid Automatic Repeat reQuest) process number, and transmit antenna port }.

As an embodiment, the first signaling is higher layer signaling.

Specifically, according to an aspect of the present invention, the uplink wireless signals include G1 uplink wireless sub-signals, time domain resources occupied by any two uplink wireless sub-signals in the G1 uplink wireless sub-signals are orthogonal, and the G1 uplink wireless sub-signals are transmitted by the same one or multiple antenna ports.

Specifically, according to an aspect of the present invention, it is characterized in that the first component is an average value of G1 path losses, and the G1 path losses are respectively determined by measurements for the G1 wireless signals. The second component is equal to an average of G2 path losses minus the first component, the G2 path losses being determined by measurements for the G2 wireless signals, respectively.

As an embodiment, one of the path losses is equal to a transmit power of the corresponding wireless signal minus an RSRP of the corresponding wireless signal.

As an embodiment, an average of the G2 path losses is less than a given path loss determined from measurements for any of the G1 wireless signals that do not belong to the G2 wireless signals.

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

-step a. sending the first information and the second information;

-step b.

As an embodiment, the first information is cell-common.

As one embodiment, the first information is semi-statically configured.

As one embodiment, the second information is semi-statically configured.

As one embodiment, the second information is dynamically configured.

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

As an embodiment, the second information is carried by higher layer signaling.

step A0. sending G1 wireless signals;

As one embodiment, the wireless signal is a reference signal.

As one embodiment, the wireless signal is a CSI-RS.

As an embodiment, the wireless signal comprises one or more of { PSS, SSS, MIB/SIB, CSI-RS }.

As an example, the G2 is equal to 1.

As one example, the G2 is greater than 1.

-a step a1. receiving an uplink radio signal;

-step a2. sending the third information.

As an embodiment, the third information is carried by higher layer signaling.

As one embodiment, the third information is semi-statically configured.

As an embodiment, the uplink wireless signal includes one or more of { RACH Preamble (Preamble), SRS, DMRS }.

-a step a3. receiving a second radio signal.

As one example, the G3 is equal to the G2.

As one embodiment, the G3 is greater than the G2.

As one embodiment, the G3 is smaller than the G1.

-step a4. sending the first signalling.

As an embodiment, the first signaling is physical layer signaling.

As an embodiment, the first signaling is higher layer signaling.

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

a first processing module: for receiving first information and second information;

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

As an embodiment, the above user equipment is characterized in that the first processing module is further configured to receive G1 wireless signals. Wherein the G1 wireless signals are respectively transmitted by a G1 antenna port group, measurements for the G1 wireless signals are used to determine the first component, the antenna port group includes a positive integer number of antenna ports, the G1 is a positive integer greater than 1.

As one embodiment, the above user equipment is characterized in that measurements for G2 radio signals are used to determine the second component, the G2 radio signals being a subset of the G1 radio signals, the G2 being a positive integer no greater than the G1.

As an embodiment, the user equipment is characterized in that the first processing module is further configured to send an uplink wireless signal and receive third information. Wherein the measurement for the uplink wireless signal is used to determine the third information, the third information indicating at least one of { the first component, the second component }.

As an embodiment, the user equipment is characterized in that the first processing module is further configured to send a second wireless signal. Wherein the second wireless signals are used to determine G3 wireless signals among the G1 wireless signals, the G2 wireless signals are a subset of the G3 wireless signals, the G3 is a positive integer no greater than G1 and no less than G2.

As an embodiment, the above user equipment is characterized in that the first processing module is further configured to receive a first signaling. Wherein the first signaling is used to determine the G2 wireless signals from the G3 wireless signals.

As an embodiment, the above user equipment is characterized in that the uplink wireless signals include G1 uplink wireless sub-signals, time domain resources occupied by any two uplink wireless sub-signals in the G1 uplink wireless sub-signals are orthogonal, and the G1 uplink wireless sub-signals are transmitted by the same one or more antenna ports.

As an embodiment, the above user equipment is characterized in that the first component is an average of G1 path losses, the G1 path losses being determined by measurements for the G1 radio signals, respectively. The second component is equal to an average of G2 path losses minus the first component, the G2 path losses being determined by measurements for the G2 wireless signals, respectively.

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

a second processing module: for transmitting the first information and the second information;

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

As an embodiment, the base station device is characterized in that the second processing module is further configured to send G1 wireless signals. Wherein the G1 wireless signals are respectively transmitted by a G1 antenna port group, measurements for the G1 wireless signals are used to determine the first component, the antenna port group includes a positive integer number of antenna ports, the G1 is a positive integer greater than 1.

As one embodiment, the above base station apparatus is characterized in that measurements for G2 radio signals are used to determine the second component, the G2 radio signals being a subset of the G1 radio signals, the G2 being a positive integer no greater than the G1.

As an embodiment, the base station device is characterized in that the second processing module is further configured to receive an uplink wireless signal and send third information. Wherein the measurement for the uplink wireless signal is used to determine the third information, the third information indicating at least one of { the first component, the second component }.

As an embodiment, the base station device 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 G3 wireless signals among the G1 wireless signals, the G2 wireless signals are a subset of the G3 wireless signals, the G3 is a positive integer no greater than G1 and no less than G2.

As an embodiment, the base station device is characterized in that the second processing module is further configured to send a first signaling. Wherein the first signaling is used to determine the G2 wireless signals from the G3 wireless signals.

As an embodiment, the base station device is characterized in that the uplink wireless signals include G1 uplink wireless sub-signals, time domain resources occupied by any two uplink wireless sub-signals in the G1 uplink wireless sub-signals are orthogonal, and the G1 uplink wireless sub-signals are transmitted by the same one or more antenna ports.

As one embodiment, the above base station apparatus is characterized in that the first component is an average value of G1 path losses, the G1 path losses being respectively determined by measurements for the G1 radio signals. The second component is equal to an average of G2 path losses minus the first component, the G2 path losses being determined by measurements for the G2 wireless signals, respectively.

Compared with the traditional scheme, the invention has the following advantages:

the first and second components are used to reflect the average large-scale fading between the UE and the serving base station under all receive/transmit beamforming vectors and the deviation between the large-scale fading and the average large-scale fading under a particular receive/transmit beamforming vector, respectively. The two have different influences on the uplink transmission power, and need to be compensated for in uplink power control.

The first coefficient and the second coefficient are used to realize the compensation of the first component and the second component in the uplink power control process, so that the control of the uplink transmission power is more flexible, and the requirements under different scenes can be better met.

Scenario 1, when sending SRS, the first coefficient may be a number greater than 0 and not greater than 1 to enable compensation for average large-scale fading in the SRS transmission power; the second coefficient may be 0, so as to support the base station to measure the received power corresponding to different receive/transmit beamforming vectors under the same transmit power, thereby selecting the receive/transmit beamforming vector with the largest received power.

Scenario 2, when transmitting uplink data on PUSCH, the first coefficient may be a number less than 1 and greater than 0 to achieve partial compensation for average large-scale fading in the transmission power of PUSCH to balance the performance of the border user and interference to the neighboring cells; the second coefficient may be 1 to ensure that the received power of the data of the same user does not vary with the variation of the receive/transmit beamforming vector.

Scenario 3, when uplink data is sent on PUSCH, the first coefficient is common to the cells; the second coefficient is UE-specific and is used to adjust the interference to neighboring cells by UEs using different transmit beamforming vectors.

Drawings

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

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

FIG. 2 illustrates a schematic diagram of the constituent components of a first power, according to one embodiment of the invention;

fig. 3 shows a schematic diagram of the relationship between G1 wireless signals and a first component according to one embodiment of the invention;

FIG. 4 shows a schematic diagram of the relationship between G2 wireless signals and a second component, according to one embodiment of the invention;

fig. 5 is a diagram showing a relationship between an uplink wireless signal and { first component, second component } according to an embodiment of the present invention;

fig. 6 shows a block diagram of a processing device used in a UE according to an embodiment of the invention;

fig. 7 shows a block diagram of a processing device used in a base station according to an embodiment of the present invention.

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, a block F1, a block F2, a block F3, and a block F4 are respectively optional, wherein the block F2 and the block F4 exist at the same time or do not exist at the same time, and the blocks F3 and { the block F2, the block F4} cannot exist at the same time.

For N1, G1 wireless signals are transmitted in step S101; receiving a second wireless signal in step S102; receiving an uplink wireless signal in step S103; transmitting third information in step S104; transmitting the first information and the second information in step S11; transmitting a first signaling in step S105; the first wireless signal is received in step S12.

For U2, G1 wireless signals are received in step S201; transmitting a second wireless signal in step S202; transmitting an uplink wireless signal in step S203; receiving third information in step S204; receiving the first information and the second information in step S21; receiving a first signaling in step S205; the first wireless signal is transmitted in step S22.

In embodiment 1, the transmission power of the first radio signal is a first power, the first power is linearly related to { first component, second component }, respectively, a linear coefficient between the first power and the first component is a first coefficient, and a linear coefficient between the first power and the second component is a second coefficient. The first information is used by U2 to determine the first coefficient and the second information is used by U2 to determine the second coefficient. The first coefficient is not less than 0 and not more than 1, and the second coefficient is not less than 0 and not more than 1. The G1 wireless signals are respectively transmitted by a G1 antenna port group, measurements for the G1 wireless signals are used by a U2 to determine the first component, the antenna port group includes a positive integer number of antenna ports, the G1 is a positive integer greater than 1.

If the block F2 and the block F4 exist, measurements for G2 wireless signals are used by U2 to determine the second component, the G2 wireless signals are a subset of the G1 wireless signals, and the G2 is a positive integer no greater than the G1. The second wireless signals are used by U2 to determine G3 wireless signals among the G1 wireless signals, the G2 wireless signals are a subset of the G3 wireless signals, the G3 is a positive integer no greater than G1 and no less than G2. The first signaling is used by the U2 to determine the G2 wireless signals from the G3 wireless signals.

If the block F3 exists, the measurement for the uplink wireless signal is used by N1 to determine the third information, the third information indicating at least one of { the first component, the second component }.

As sub-embodiment 1 of embodiment 1, the uplink wireless signals include G1 uplink wireless sub-signals, time domain resources occupied by any two uplink wireless sub-signals in the G1 uplink wireless sub-signals are orthogonal, and the G1 uplink wireless sub-signals are transmitted by the same one or more antenna ports.

As sub-embodiment 2 of embodiment 1, the first component is an average of G1 path losses, the G1 path losses being determined from measurements for the G1 wireless signals, respectively. The second component is equal to an average of G2 path losses minus the first component, the G2 path losses being determined by measurements for the G2 wireless signals, respectively.

As a sub-embodiment of sub-embodiment 2 of embodiment 1, one of the path losses is equal to the transmit power of the corresponding radio signal minus the RSRP of the corresponding radio signal.

As sub-embodiment 3 of embodiment 1, the first information is cell-common.

As sub-embodiment 4 of embodiment 1, the second information is configured by UE-specific signaling.

As sub-embodiment 5 of embodiment 1, the first information is semi-statically configured.

As sub-embodiment 6 of embodiment 1, the second information is semi-statically configured.

As sub-embodiment 7 of embodiment 1, the second information is dynamically configured.

As a sub-embodiment 8 of embodiment 1, the first information is carried by higher layer signaling.

As sub-embodiment 9 of embodiment 1, the second information is carried by higher layer signaling.

As sub-embodiment 10 of embodiment 1, the second information is carried by physical layer signaling.

As sub-embodiment 11 of embodiment 1, the first radio signal includes at least one of { SRS, uplink data, uplink control information }.

As sub-embodiment 12 of embodiment 1, the G1 wireless signals are reference signals.

As sub-embodiment 13 of embodiment 1, the G1 radio signals are CSI-RS.

As sub-embodiment 14 of embodiment 1, the G1 radio signals include one or more of { PSS, SSS, MIB/SIB, CSI-RS }.

As a sub-embodiment 15 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.

As a sub-embodiment 16 of embodiment 1, the transmission power of the uplink radio signal and the first component are linearly related, a linear coefficient between the transmission power of the uplink radio signal and the first component is the first coefficient, and the third information indicates the second component.

As a sub-embodiment 17 of embodiment 1, the third information is carried by higher layer signaling.

As a sub-embodiment of sub-embodiment 17 of embodiment 1, the third information is carried by RRC signaling.

As a sub-embodiment 18 of embodiment 1, the third information is semi-statically configured.

As sub-embodiment 19 of embodiment 1, the uplink wireless signal includes one or more of { RACH Preamble (Preamble), SRS, DMRS }.

As sub-embodiment 20 of embodiment 1, said G2 is equal to 1.

As sub-example 21 of example 1, the G2 is greater than 1.

As sub-embodiment 22 of embodiment 1, the G3 is equal to the G2.

As sub-embodiment 23 of embodiment 1, the G3 is greater than the G2.

As sub-embodiment 24 of embodiment 1, the G3 is less than the G1.

As sub-embodiment 25 of embodiment 1, the first signaling is physical layer signaling.

As sub-embodiment 26 of embodiment 1, the 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, NDI, RV, HARQ process number, transmit antenna port }.

As a sub-embodiment 27 of embodiment 1, the first signaling is higher layer signaling.

Example 2

Embodiment 2 illustrates a schematic diagram of the constituent components of the first power, as shown in fig. 2.

In embodiment 2, the first power is the smallest one of { second power, power threshold }, and the second power is linearly related to { first component, second component, third component, fourth component, fifth component, sixth component }, respectively. A linear coefficient between the second power and the first component is a first coefficient, and a linear coefficient between the second power and the second component is a second coefficient, and linear coefficients between the second power and { the third component, the fourth component, the fifth component, the sixth component } are 1, respectively. First information is used to determine the first coefficient and second information is used to determine the second coefficient. The first coefficient is not less than 0 and not more than 1, and the second coefficient is not less than 0 and not more than 1.

As sub-embodiment 1 of embodiment 2, the unit of the first component is dB and the unit of the second component is dB.

As a sub-embodiment 2 of embodiment 2, the second component is a negative number.

As sub-embodiment 3 of embodiment 2, the first coefficient is not equal to the second coefficient.

As a sub-embodiment of sub-embodiment 3 of embodiment 2, a first radio signal is an SRS, the first power is a transmit power of the first radio signal, a plurality of different beamforming vectors are used to receive the first radio signal, the first coefficient is greater than 0 and not greater than 1, and the second coefficient is equal to 0.

As a sub-embodiment of sub-embodiment 3 of embodiment 2, a first radio signal is transmitted on PUSCH, the first power is a transmission power of the first radio signal, the first coefficient is smaller than 1 and larger than 0, and the second coefficient is equal to 1.

As a sub-embodiment of sub-embodiment 3 of embodiment 2, a first radio signal is transmitted on PUSCH, the first power is a transmission power of the first radio signal, the first coefficient is common to cells, and the second coefficient is UE-specific.

As sub-embodiment 4 of embodiment 2, the first coefficient is equal to the second coefficient.

As sub-embodiment 5 of embodiment 2, the first coefficient is associated with a scheduling type of the first wireless signal.

As a sub-embodiment of sub-embodiment 5 of embodiment 2, 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 sub-embodiment 6 of embodiment 2, the first coefficient is α_c(j)。

As sub-embodiment 7 of embodiment 2, the second coefficient is related to a data type of the first radio signal, the data type includes { SRS, uplink data, uplink control information }, and the first power is a transmission power of the first radio signal.

As a sub-embodiment 8 of embodiment 2, the unit of the first power is dBm.

As a sub-embodiment 9 of embodiment 2, the first power is P_PUSCH,c(i)。

As a sub-embodiment 10 of embodiment 2, the first power is P_SRS,c(i)。

As a sub-embodiment 11 of embodiment 2, the third component is associated with a bandwidth occupied by the first wireless signal.

One sub-example of sub-example 11 as example 2Example, the third component is 10log₁₀(M_PUSCH,c(i))。

As a sub-embodiment 12 of embodiment 2, the fourth component is associated with the scheduling type corresponding to the first radio signal.

As a sub-embodiment of sub-embodiment 12 of embodiment 2, the fourth component is P_{O_PUSCH,c}(j)。

As a sub-embodiment of sub-embodiment 12 of embodiment 2, the fourth component is configured by higher layer signaling.

As a sub-embodiment of sub-embodiment 12 of embodiment 2, the fourth component is cell-common.

As sub-embodiment 13 of embodiment 2, the fifth component is associated with an MCS of the first wireless signal.

As a sub-embodiment of sub-embodiment 13 of embodiment 2, the fifth component is Δ_TF,c(i)。

As a sub-embodiment 14 of embodiment 2, the fifth component is P_{SRS_OFFSET,c}(i)。

As a sub-embodiment 15 of embodiment 2, the fifth component is configured by higher layer signaling.

As a sub-embodiment 16 of embodiment 2, the fifth component is cell-common.

As a sub-embodiment 17 of embodiment 2, a UE-specific (UE-specific) TPC is used to determine the sixth component.

As one sub-embodiment of sub-embodiment 17 of embodiment 2, K UE-specific TPCs indicate K power offsets, the sum of the sixth component and the K power offsets is linearly related, the linear coefficient between the sum of the sixth component and the K power offsets is 1, and K is a positive integer.

As a sub-embodiment of sub-embodiment 17 of embodiment 2, the sixth component is f_c(i)。

As a sub-embodiment 18 of embodiment 2, the first power is equal to the power threshold, wherein the second power is greater than or equal to the power threshold.

As a sub-embodiment of sub-embodiment 18 of embodiment 2, the power threshold is P_CMAX,c(i)。

As a sub-embodiment 19 of embodiment 2, the first power is less than the power threshold.

Example 3

Embodiment 3 illustrates a schematic diagram of the relationship between G1 wireless signals and the first component, as shown in fig. 3.

In embodiment 3, the G1 radio signals are transmitted by G1 antenna port groups, respectively, and measurements for the G1 radio signals are used to determine the first component, the antenna port groups including a positive integer number of antenna ports, the G1 being a positive integer greater than 1. The antennas configured by the base station are divided into a plurality of antenna groups, each of which includes a plurality of antennas. The antenna port is formed by overlapping a plurality of antennas in one or more antenna groups through antenna Virtualization (Virtualization), and mapping coefficients from the plurality of antennas in the one or more antenna groups to the antenna port form a beam forming vector. One of the antenna groups is connected to the baseband processor through one RF (Radio Frequency) chain. One of the beamforming vectors is formed by a Kronecker product of an analog beamforming vector and a digital beamforming vector. Mapping coefficients of multiple antennas in the same antenna group to the antenna ports form an analog beamforming vector of the antenna group, and different antenna groups included in one antenna port correspond to the same analog beamforming vector. The mapping coefficients of different antenna groups included in one antenna port to the antenna port constitute a digital beamforming vector for this antenna port.

As sub-embodiment 1 of embodiment 3, the first component is an average of G1 path losses (pathlosses), the G1 path losses being determined from measurements for the G1 wireless signals, respectively.

As an embodiment of sub-embodiment 1 of embodiment 3, one of the path losses is equal to the transmit power of the corresponding radio signal minus the RSRP of the corresponding radio signal.

As sub-embodiment 2 of embodiment 3, different ones of the antenna ports in one of the antenna port groups correspond to the same analog beamforming vector.

As sub-embodiment 3 of embodiment 3, different ones of the antenna ports in one of the antenna port groups correspond to different ones of the digital beamforming vectors.

As sub-embodiment 4 of embodiment 3, the antenna port group includes one of the antenna ports.

As sub-embodiment 5 of embodiment 3, the antenna port group includes a plurality of the antenna ports.

As sub-embodiment 6 of embodiment 3, there is no one said antenna port belonging to two different said antenna port groups simultaneously.

As sub-embodiment 7 of embodiment 3, any two different antenna port groups include the same number of antenna ports.

As a sub-embodiment 8 of embodiment 3, there are at least two different antenna port groups comprising different numbers of said antenna ports.

Example 4

Example 4 a schematic diagram illustrating the relationship between G2 wireless signals and the second component is shown in fig. 4.

In embodiment 4, measurements for the G2 wireless signals are used to determine the second component, the G2 wireless signals being a subset of the G1 wireless signals, the G2 being a positive integer no greater than the G1. In fig. 4, the ellipses of the solid line frame represent the G1 wireless signals, and the ellipses of the solid line frame filled with left oblique lines represent the G2 wireless signals.

As sub-example 1 of example 4, the G2 is equal to 1.

As sub-example 2 of example 4, the G2 is greater than 1.

As sub-embodiment 3 of embodiment 4, the second component is equal to an average of G2 path losses minus the first component, the G2 path losses being determined from measurements for the G2 wireless signals, respectively.

As a sub-embodiment of sub-embodiment 3 of embodiment 4, one of the path losses is equal to the transmit power of the corresponding wireless signal minus the RSRP of the corresponding wireless signal.

As a sub-embodiment of sub-embodiment 3 of embodiment 4, an average of the G2 path losses is less than a given path loss determined from measurements for any of the G1 wireless signals that do not belong to the G2 wireless signals.

Example 5

Example 5 is a diagram illustrating a relationship between an uplink radio signal and { first component, second component }, as shown in fig. 5.

In embodiment 5, the measurement for the uplink wireless signal is used to determine at least one of { the first component, the second component }. The uplink wireless signals comprise G1 uplink wireless sub-signals, time domain resources occupied by any two uplink wireless sub-signals in the G1 uplink wireless sub-signals are orthogonal, and the G1 uplink wireless sub-signals are sent by the same one or more antenna ports. G1 antenna virtualization vectors are used to receive the G1 uplink wireless sub-signals, respectively, and G2 antenna virtualization vectors are a subset of the G1 antenna virtualization vectors. In fig. 5, the ellipses filled with left oblique lines represent the G2 antenna virtualization vectors.

As sub-embodiment 1 of embodiment 5, the transmission power of the uplink radio signal and the first component are linearly related, and a linear coefficient between the transmission power of the uplink radio signal and the first component is a first coefficient. Measurements for the uplink wireless signal are used to determine the second component.

As sub-embodiment 2 of embodiment 5, the first component is equal to an average of a transmission power of the uplink wireless signal minus G1 reception powers, the G1 reception powers being reception powers of the uplink wireless signal received with the G1 antenna virtualization vectors, respectively.

As a sub-embodiment of sub-embodiment 2 of embodiment 5, the received power is RSRP.

As sub-embodiment 3 of embodiment 5, the second component is equal to the average of the transmission power of the uplink radio signal minus G2 reception powers minus the first component, and the G2 reception powers are the reception powers of the uplink radio signal received with the G2 antenna virtualization vectors, respectively.

As sub-embodiment 4 of embodiment 5, the second component is equal to the reference power minus the average of the G2 received powers.

As a sub-embodiment of sub-embodiment 4 of embodiment 5, the reference power is semi-statically configured.

As a sub-embodiment of sub-embodiment 4 of embodiment 5, the reference power is UE-specific.

As sub-embodiment 5 of embodiment 5, the average value of the G2 received powers is not less than a given received power, which is any one of the G1 received powers that does not belong to the G2 received powers.

Example 6

Embodiment 6 illustrates a block diagram of a processing apparatus used in a UE, as shown in fig. 6.

In fig. 6, the UE apparatus 200 is mainly composed of a first processing module 201 and a first transmitting module 202.

The first processing module 201 is configured to receive first information and second information; the first sending module 202 is configured to send a first wireless signal.

In embodiment 6, the transmission power of the first radio signal is a first power, the first power is linearly related to { first component, second component }, respectively, a linear coefficient between the first power and the first component is a first coefficient, and a linear coefficient between the first power and the second component is a second coefficient. The first information is used by the first transmission module 202 to determine the first coefficient and the second information is used by the first transmission module 202 to determine the second coefficient. The first coefficient is not less than 0 and not more than 1, and the second coefficient is not less than 0 and not more than 1.

As sub-embodiment 1 of embodiment 6, the first processing module 201 is further configured to receive G1 wireless signals. Wherein the G1 wireless signals are transmitted by G1 antenna port groups, respectively, measurements for the G1 wireless signals are used by the first transmit module 202 to determine the first component, the antenna port groups comprise a positive integer number of antenna ports, and the G1 is a positive integer greater than 1.

As sub-embodiment 2 of embodiment 6, measurements for G2 wireless signals are used by the first transmit module 202 to determine the second component, the G2 wireless signals being a subset of the G1 wireless signals, the G2 being a positive integer no greater than the G1.

As sub-embodiment 3 of embodiment 6, the first processing module 201 is further configured to send an uplink wireless signal and receive third information. Wherein the measurement for the uplink wireless signal is used to determine the third information, the third information indicating at least one of { the first component, the second component }.

As sub-embodiment 4 of embodiment 6, the first processing module 201 is further configured to transmit a second wireless signal. Wherein the second wireless signals are used to determine G3 wireless signals among the G1 wireless signals, the G2 wireless signals are a subset of the G3 wireless signals, the G3 is a positive integer no greater than G1 and no less than G2.

As sub-embodiment 5 of embodiment 6, the first processing module 201 is further configured to receive a first signaling. Wherein the first signaling is used by the first transmitting module 202 to determine the G2 wireless signals from the G3 wireless signals.

As sub-embodiment 6 of embodiment 6, the uplink wireless signals include G1 uplink wireless sub-signals, time domain resources occupied by any two uplink wireless sub-signals in the G1 uplink wireless sub-signals are orthogonal, and the G1 uplink wireless sub-signals are transmitted by the same one or more antenna ports.

As sub-embodiment 7 of embodiment 6, the first component is an average of G1 path losses, the G1 path losses being determined from measurements for the G1 wireless signals, respectively. The second component is equal to an average of G2 path losses minus the first component, the G2 path losses being determined by measurements for the G2 wireless signals, respectively.

Example 7

Embodiment 7 illustrates a block diagram of a processing apparatus used in a base station, as shown in fig. 7.

In fig. 7, the base station apparatus 300 is mainly composed of a second processing module 301 and a first receiving module 302.

The second processing module 301 is configured to send the first information and the second information; the first receiving module 302 is configured to receive a first wireless signal.

In embodiment 7, the transmission power of the first radio signal is a first power, the first power is linearly related to { first component, second component }, respectively, a linear coefficient between the first power and the first component is a first coefficient, and a linear coefficient between the first power and the second component is a second coefficient. The first information is used to determine the first coefficient and the second information is used to determine the second coefficient. The first coefficient is not less than 0 and not more than 1, and the second coefficient is not less than 0 and not more than 1.

As sub-embodiment 1 of embodiment 7, the second processing module 301 is further configured to send G1 wireless signals. Wherein the G1 wireless signals are respectively transmitted by a G1 antenna port group, measurements for the G1 wireless signals are used to determine the first component, the antenna port group includes a positive integer number of antenna ports, the G1 is a positive integer greater than 1.

As sub-embodiment 2 of embodiment 7, measurements for G2 wireless signals are used to determine the second component, the G2 wireless signals being a subset of the G1 wireless signals, the G2 being a positive integer no greater than the G1.

As sub-embodiment 3 of embodiment 7, the second processing module 301 is further configured to receive an uplink wireless signal and send third information. Wherein the measurement for the uplink wireless signal is used by the second processing module 301 to determine the third information, the third information indicating at least one of { the first component, the second component }.

As sub-embodiment 4 of embodiment 7, the second processing module 301 is further configured to receive a second wireless signal. Wherein the second wireless signals are used by the second processing module 301 to determine G3 wireless signals among the G1 wireless signals, the G2 wireless signals are a subset of the G3 wireless signals, the G3 is a positive integer no greater than G1 and no less than G2.

As sub-embodiment 5 of embodiment 7, the second processing module 301 is further configured to send the first signaling. Wherein the first signaling is used to determine the G2 wireless signals from the G3 wireless signals.

As sub-embodiment 6 of embodiment 7, the uplink wireless signals include G1 uplink wireless sub-signals, time domain resources occupied by any two uplink wireless sub-signals in the G1 uplink wireless sub-signals are orthogonal, and the G1 uplink wireless sub-signals are transmitted by the same one or more antenna ports.

As sub-embodiment 7 of embodiment 7, the first component is an average of G1 path losses, the G1 path losses being determined from measurements for the G1 wireless signals, respectively. The second component is equal to an average of G2 path losses minus the first component, the G2 path losses being determined by measurements for the G2 wireless signals, respectively.

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 invention includes but is not limited to wireless communication equipment such as a mobile phone, a tablet computer, a notebook, a network card, an NB-IOT terminal, an eMTC terminal and the like. The base station or system device in the present invention 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 invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

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

-step a. receiving first information and second information;

-step b. transmitting a first wireless signal;

wherein a transmission power of the first radio signal is a first power, the first power is linearly related to { first component, second component }, respectively, a linear coefficient between the first power and the first component is a first coefficient, and a linear coefficient between the first power and the second component is a second coefficient; the first information is used to determine the first coefficient and the second information is used to determine the second coefficient; the first coefficient is not less than 0 and not more than 1, and the second coefficient is not less than 0 and not more than 1; the first component is in dB and the second component is in dB; the step A also comprises the following steps:

step A0. receives G1 wireless signals;

wherein the G1 wireless signals are respectively transmitted by a G1 antenna port group, measurements for the G1 wireless signals are used to determine the first component, the antenna port group includes a positive integer number of antenna ports, the G1 is a positive integer greater than 1; measurements for G2 wireless signals are used to determine the second component, the G2 wireless signals being a subset of the G1 wireless signals, the G2 being a positive integer no greater than the G1.

2. The method of claim 1, wherein step a further comprises the steps of:

-a step a1. transmitting an uplink radio signal;

-a step a2. receiving third information;

3. The method of claim 1, wherein step a further comprises the steps of:

-a step a3. transmitting a second radio signal;

4. The method of claim 3, wherein step A further comprises the steps of:

-a step a4. receiving a first signaling;

5. The method of claim 2, wherein the uplink wireless signals comprise G1 uplink wireless sub-signals, time domain resources occupied by any two uplink wireless sub-signals of the G1 uplink wireless sub-signals are orthogonal, and the G1 uplink wireless sub-signals are transmitted by the same one or more antenna ports.

6. The method of claim 1, wherein the first component is an average of G1 path losses, the G1 path losses being determined from measurements for the G1 wireless signals, respectively; the second component is equal to an average of G2 path losses minus the first component, the G2 path losses being determined by measurements for the G2 wireless signals, respectively.

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

-step a. sending the first information and the second information;

-step b. receiving a first wireless signal;

step A0. sending G1 wireless signals;

8. The method of claim 7, wherein step a further comprises the steps of:

-a step a1. receiving an uplink radio signal;

-a step a2. sending third information;

9. The method of claim 7, wherein step a further comprises the steps of:

-a step a3. receiving a second radio signal;

10. The method of claim 9, wherein step a further comprises the steps of:

-a step a4. sending a first signaling;

11. The method of claim 8, wherein the uplink wireless signals comprise G1 uplink wireless sub-signals, time domain resources occupied by any two uplink wireless sub-signals of the G1 uplink wireless sub-signals are orthogonal, and the G1 uplink wireless sub-signals are transmitted by the same one or more antenna ports.

12. The method of claim 7, wherein the first component is an average of G1 path losses, the G1 path losses being determined from measurements for the G1 wireless signals, respectively; the second component is equal to an average of G2 path losses minus the first component, the G2 path losses being determined by measurements for the G2 wireless signals, respectively.

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

a first processing module: for receiving the first information and the second information and receiving G1 wireless signals;

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

wherein a transmission power of the first radio signal is a first power, the first power is linearly related to { first component, second component }, respectively, a linear coefficient between the first power and the first component is a first coefficient, and a linear coefficient between the first power and the second component is a second coefficient; the first information is used to determine the first coefficient and the second information is used to determine the second coefficient; the first coefficient is not less than 0 and not more than 1, and the second coefficient is not less than 0 and not more than 1; the first component is in dB and the second component is in dB; the G1 wireless signals are respectively transmitted by a G1 antenna port group, measurements for the G1 wireless signals are used to determine the first component, the antenna port group includes a positive integer number of antenna ports, the G1 is a positive integer greater than 1; measurements for G2 wireless signals are used to determine the second component, the G2 wireless signals being a subset of the G1 wireless signals, the G2 being a positive integer no greater than the G1.

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

a second processing module: used for sending the first information and second information and G1 wireless signals;

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