CN102300303A - Power control method of uplink multi-input multi-output channel - Google Patents

Power control method of uplink multi-input multi-output channel Download PDF

Info

Publication number
CN102300303A
CN102300303A CN2010102132882A CN201010213288A CN102300303A CN 102300303 A CN102300303 A CN 102300303A CN 2010102132882 A CN2010102132882 A CN 2010102132882A CN 201010213288 A CN201010213288 A CN 201010213288A CN 102300303 A CN102300303 A CN 102300303A
Authority
CN
China
Prior art keywords
srs
reference signal
base station
interception reference
subscriber equipment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2010102132882A
Other languages
Chinese (zh)
Inventor
张应余
刘仁茂
杨曾
丁铭
梁永明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to CN2010102132882A priority Critical patent/CN102300303A/en
Publication of CN102300303A publication Critical patent/CN102300303A/en
Pending legal-status Critical Current

Links

Images

Abstract

The invention provides a transmission mode configuration relation between an A-SRS (Aperiodic-Sounding Reference Signal) and a PUSCH (Physical Uplink Shared Channel), a PUCCH (Physical Uplink Control Channel) and a P-SRS (Periodic-Sounding Reference Signal) on the basis of comprehensively considering factors such as uplink MIMO (Multi-Input Multi-Output), frequency spectrum aggregation and the like, and provides power authorization of the A-SRS and the transmission and configuration of the P-SRS/A-SRS on an SCC (Secondary Component Carrier). According to the invention, the method comprises the following steps: a base station sets the P-SRS and the A-SRS in independent transmission modes; the base station semi-statically configures a part of or all parameters of the A-SRS and informs user equipment of the configured parameters; and the user equipment determines practical transmitting power of the A-SRS according to the configured parameters and transmits the A-SRS according to the set transmission mode. Moreover, the base station can be used for scheduling the user equipment to stop transmission of the P-SRS, or the user equipment can automatically stop transmission of the P-SRS when a predetermined condition is satisfied, so that the aim of saving power is fulfilled.

Description

The Poewr control method of up multi-input multi-ouput channel
Technical field
The present invention relates to cell mobile communication systems, more specifically, relate to the method for the uplink transmission power of control subscriber equipment in the cellular communication system that adopts multiple-input and multiple-output (MIMO) technology.
Background technology
Along with the development of information technology, portable terminal is more and more higher to the demand of access rate, and this makes future mobile communication system will have higher transmission rate.The raising of transmission rate can realize by improving the system transmission bandwidth or the availability of frequency spectrum.In the uplink mode of communication systems such as the WCDMA, the TD-SCMDA that have the use fixed-bandwidth now, LTE, mostly the raising of spectrum efficiency is that by power control, modes such as use high order modulation realize.In the discussion of IMT-Advanced technical research such as LTE-Advanced and standard, introduced up multiple-input and multiple-output (MIMO) technology, promptly adopt the space division multiplexing technology further to improve the spectrum efficiency of up link, thereby further improve uplink speed in up link.In order to measure the channel status of a plurality of antenna ports, each antenna port of terminal need be launched corresponding interception reference signal (SoundingReference Signal, SRS), dispatch in the dispose measurement result of intercepting in the frequency band according to the SRS to each antenna port the base station.LTE than older version (Release 8/9) in, the base station disposes the relevant parameter of SRS semi-staticly.Subscriber equipment is periodically launched SRS, perhaps only does single emission.For convenience of description, in this manual, the SRS of semi-static configuration and scheduling among the Rel.8/9 is designated " P-SRS ".In the discussion of LTE-Advanced, in order to strengthen the performance of SRS, in 3GPP RAN1 meeting, proposed aperiodic SRS (Aperiodic SRS, A-SRS).Different with P-SRS, A-SRS adopts the mode of dynamic dispatching.The present invention has proposed configuration mode and the transmission method of P-SRS and A-SRS on the basis of having taken all factors into consideration Uplink MIMO and spectrum aggregation factors such as (Carrier Aggregation).
Summary of the invention
The present invention is on the basis of having taken all factors into consideration factors such as Uplink MIMO and spectrum aggregation, propose the transmission mode configuration relation of A-SRS and PUSCH, PUCCH, P-SRS, also proposed power mandate and transmission and the configuration of P-SRS/A-SRS on SCC of A-SRS.
Have at subscriber equipment under the situation of many transmit antennas, upstream data shared channel PUSCH (Physical Uplink Shared CHannel) has two kinds of transmission modes: a kind of is single antenna port SAP (Single Antenna Port) pattern, and another kind is many antenna ports M AP (Multiple Antenna Port) pattern.The pattern of the transmission of PUSCH adopts semi-static configuration, i.e. switching between two kinds of patterns of the MAP of PUSCH and SAP is finished by the mode of RRC (Radio ResourceControl) high-level signaling.Equally, ascending control channel PUCCH (PhysicalUplink Control CHannel), A-SRS, P-SRS also can have SAP and two kinds of patterns of MAP.
P-SRS keeps identical transmission mode with PUSCH, and even P-SRS is in the MAP pattern, and then PUSCH also is in the MAP pattern, and vice versa.If P-SRS is in the SAP pattern, then PUSCH also is in the SAP pattern, and vice versa.
PUCCH keeps identical transmission mode with PUSCH, and even PUCCH is in the MAP pattern, and then PUSCH also is in the MAP pattern, and vice versa.If PUCCH is in the SAP pattern, then PUSCH also is in the SAP pattern, and vice versa.
A-SRS can be independently of one another with the transmission mode of P-SRS, do not have relation one to one.The configuration of A-SRS can realize by one of following dual mode:
1. implicit expression mode
The base station does not have the signaling information about transmission mode in the dynamic dispatching instruction (promptly instructing about the dynamic dispatching of A-SRS) of the transmission mode of configuration A-SRS.
The base station disposes the transmission mode of A-SRS in the mode of dynamic dispatching, and under the situation about not offering some clarification in base station dynamic dispatching control signaling, there are the corresponding relation of implicit expression in A-SRS and P-SRS transmission mode, i.e. the identical transmission mode of A-SRS and P-SRS employing; Specifically, the base station dynamically disposes the transmission mode of A-SRS by down control channel PDCCH (PhysicalDownlink Control CHannel), if there is not the bit indication information of A-SRS transmission mode in the bit information of current PDCCH, then the transmission mode of A-SRS depends on the transmission mode of the current P-SRS that is disposed by semi-static mode.
The base station disposes the transmission mode of the A-SRS that strides sub-frequency spectrum (Cross Carrier) scheduling in the mode of dynamic dispatching, and under the situation about not offering some clarification in the base station dynamic dispatching control signaling, the A-SRS that strides sub-frequency spectrum scheduling adopts the transmission mode of MAP; Specifically, the base station dynamically disposes the transmission mode of the A-SRS that strides sub-frequency spectrum scheduling by PDCCH, if there is not the bit indication information of A-SRS transmission mode in the bit information of current PDCCH, the A-SRS that then strides sub-frequency spectrum scheduling adopts the transmission mode of MAP.
The base station disposes the transmission mode of the A-SRS that strides sub-frequency spectrum scheduling in semi-static mode.If the base station is not the transmission mode of this A-SRS of user device configuration, then Shi Ji transmission mode is defaulted as the transmission mode of MAP.
2. explicit way
Promptly there is the clear and definite indication bit about the A-SRS transmission mode in the transmission mode of base station explanation A-SRS in dynamic dispatching control signaling in the control signaling.
Power control under many antennas is different with the power control of single antenna.If the base station disposes the parameter of A-SRS semi-staticly, then the transmitting power computing formula of its A-SRS and the account form among the Rel.8/9 are similar.Actual transmitting power can be obtained by following several account forms:
Mode one: the M of the semi-static configuration in base station A-SRS SRS_CC, P O_PUSCH_CC, P SRS_OFFSET_CCAnd α Cc
P SRS_CC＝min{P cmax_CC-Δ PORTS_CC，P SRS_OFFSET_CC+10log 10(M SRS_CC)+P O_PUSCH_CC+α cc·PL CC}[dBm]
Mode two: the M of the semi-static configuration in base station A-SRS SRS_CC, P O_PUSCH_CC, P SRS_OFFSET_CCAnd α CcEtc. parameter, and utilize the power adjustment f of the PUSCH on the current C C CC(i)
P SRS_CC＝min{P cmax_CC-Δ PORTS_CC，P SRS_OFFSET_CC+10log 10(M SRS_CC)+P O_PUSCH_CC+α cc·PL cc+F CC(i)}[dBm]
The M of mode three: A-SRS SRS_CC, P O_PUSCH_CC, P SRS_OFFSET_CCAnd α CcDeng in partial parameters by the semi-static configuration in base station, the part by the dynamic notifying user equipment of physical layer signaling.
For example, (1) base station disposes M in semi-static mode SRS_CC α ccAnd P O_PUSCH_CC(perhaps P SRS_OFFSET_CC), by physical layer signaling dynamic-configuration P SRS_OFFSET_CC(perhaps P O_PUSCH_CC).
Perhaps, (2) base station disposes α in semi-static mode Cc, P O_PUSCH_CCAnd P SRS_OFFSET_CCEtc. parameter, by physical layer signaling dynamic-configuration M SRS_CC
Mode four: redefine the part configuration parameter
P SRS_CC＝min{P cmax_CC-Δ PORTS_CC，P O_CC+10log 10(M SRS_CC)+α cc·PL cc?}[dBm]
P SRS_CC=min{P Cmax_CC-Δ PORTS_CC, P O_CC+ 10log 10(M SRS_CC)+α CcPL Cc+ f CC(i) } [dBm] M SRS_CCAnd P O_CCCan be with following arbitrary configuration mode:
(1) base station disposes M in semi-static mode SRS_CCAnd P O_CCPerhaps
(2) base station disposes M in semi-static mode SRS_CC(or P O_CC), with physics
Layer means of signaling dynamic-configuration P O_CC(or M SRS_CC).
Mode five: realize by disposing the total transmitting power of all antenna port A-SRS.On each antenna port the transmitting power of A-SRS can by by the power division ratio of base station sets with the A-SRS sequence of power division to each antenna port.
P SRS_CC_tot?al＝min{P cmax_CC，P SRS_OFFSET_CC+10log 10(M SRS_CC)+P O_PUSCH_CC+Δ PORTS_CC+α cc·PL cc}[dBm]
P SRS_CC_tot?al＝min{P cmax_CC，P SRS_OFFSET_CC+10log 10(M SRS_CC)+P O_PUSCH_CC+α cc·PL cc+Δ PORTS_CC+f CC(i)}[dBm]
P SRS_CC_tot?al＝min{P cmax_CC，10log 10(M SRS_CC)+P O_CC+Δ PORTS_CC+α cc·PL cc}[dBm]
P SRS_CC_tot?al＝min{P cmax_CC，10log 10(M SRS_CC)+P O_CC+α cc·PL cc+Δ PORTS_CC+f CC(i)}[dBm]
Determine the transmission mode of A-SRS by implicit expression or explicit mode, determine Δ in mode one～mode five by the transmission mode of A-SRS PORTS_CC, determine the maximum transmission power of each antenna port thus.
In the follow-up version of LTE Rel.8/9, introduced spectrum aggregation (CarrierAggregation) technology, at the multistage that subscriber equipment uses in the up or downstream spectrum, it is dominant frequency spectrum (Primary Component Carrier that one section frequency spectrum is arranged, PCC), other then be secondary frequency spectrum (Secondary Component Carrier, SCC).When the SCC that subscriber equipment disposed was in unactivated state, this up SCC did not transmit any signal (comprising P-SRS, A-SRS etc.).
The scheduling of base station on SCC can be undertaken by one of following dual mode:
1.A-SRS all launch on SCC with P-SRS, the base station is according to both measurements are dispatched; Perhaps
2. the base station only relies on the measurement result of A-SRS to be implemented in scheduling on the SCC, and promptly subscriber equipment is not launched the P-SRS signal on SCC.
In the base station according to A-SRS and P-SRS under the situation that the measurement on the SCC is dispatched, SCC is changed and can be undertaken by one of following dual mode to state of activation by unactivated state:
1. the emission of up P-SRS is controlled in the base station with descending MAC means of signaling;
Perhaps
2. the transmission of up P-SRS is activated in the base station by scheduling A-SRS; A-SRS is launched in base station at first scheduling user's set on SCC; Subscriber equipment postpones back emission P-SRS sometime; And the setup time of P-SRS can be following three kinds one of select:
1) after subscriber equipment emission A-SRS, the base station is according to the testing result of A-SRS, semi-static or dynamic-configuration P-SRS;
2) after the scheduling of subscriber equipment A-SRS is finished in the base station, semi-static or dynamic-configuration P-SRS;
3) subscriber equipment is not before doing any transmission on the SCC, and the base station has disposed the parameter of P-SRS for it.
When PUSCH end of transmission on SCC, and no base station scheduling in a period of time, the emission that SCC goes up P-SRS can be closed by the dynamic dispatching subscriber equipment in the base station, reaches purpose of power saving with this.Perhaps also can need not base station scheduling,, when condition satisfies, stop the emission of P-SRS on SCC voluntarily by subscriber equipment by the definition certain conditions.Can adopt any one or its combination in following several modes specifically:
1. base station dynamic dispatching
The base station stops emission by physical layer control channel PDCCH dynamic dispatching P-SRS.
Mode one: the control bit of reusing A-SRS;
Mode two: with other control domain bit combined codings.
2. definition certain conditions
When condition satisfied, subscriber equipment stopped the emission of P-SRS, specifically can adopt following arbitrary or its compound mode:
1) one of definition if in the time of definition, does not comprise any other transmission of PUSCH about there not being the timer of up scheduling or transmission operation, and then subscriber equipment stops the emission of P-SRS; Perhaps
2) one of definition is not about there being the counter of up scheduling or transmission operation, if P-SRS has launched pre-determined number, and at this moment in the section, do not comprise any other transmission of PUSCH, and then subscriber equipment stops the emission of P-SRS; Perhaps
3) define one about not having up scheduling or transmission operation counter: be defined in after certain TTI on the PUSCH, if PUSCH transmits certain number of times continuously with specific form, then subscriber equipment stops the emission of P-SRS.
3.MAC layer signaling
Control P-SRS stops the bit information of up emission also can be realized by MAC layer signaling.
Stop the emission of P-SRS on SCC and mean that this SCC is converted to unactivated state by state of activation.
Description of drawings
By below in conjunction with description of drawings the preferred embodiments of the present invention, will make above-mentioned and other purpose of the present invention, feature and advantage clearer, wherein:
Fig. 1 is the schematic diagram of PUSCH, PUCCH, A-SRS/P-SRS uplink multi-antenna port pattern;
Fig. 2 is the schematic diagram of PUSCH, PUCCH, the up single antenna port mode of A-SRS/P-SRS;
Fig. 3 is A-SRS, P-SRS scheduling and the transmission time sequence graph of a relation on SCC;
Fig. 4 is the selection of time schematic diagram of base station configuration P-SRS parameter;
Fig. 5 is the schematic diagram that subscriber equipment cuts out P-SRS voluntarily;
Fig. 6 is the schematic diagram that subscriber equipment cuts out P-SRS voluntarily;
Fig. 7 is the flow chart that subscriber equipment cuts out P-SRS voluntarily;
Fig. 8 is the base station stops the P-SRS emission with MAC signaling method dispatch terminal user a schematic diagram.
Embodiment
For clear detailed elaboration performing step of the present invention, provided some specific embodiments of the invention below, be applicable to mobile communication system, especially the LTE-Advanced cell mobile communication systems of supporting up use MIMO and spectrum aggregation technology.Need to prove, the invention is not restricted to these and use, but applicable to more other relevant communication systems.
To a preferred embodiment of the present invention will be described in detail, having omitted in the description process is unnecessary details and function for the present invention with reference to the accompanying drawings, obscures to prevent that the understanding of the present invention from causing.
Figure BSA00000165106200071
Transmission mode
Have at subscriber equipment under the situation of many transmit antennas, upstream data shared channel PUSCH (Physical Uplink Shared CHannel) has two kinds of transmission modes: a kind of is single antenna port SAP (Single Antenna Port) pattern, and another kind is many antenna ports M AP (Multiple Antenna Port) pattern.The pattern of the transmission of PUSCH adopts semi-static configuration, i.e. switching between two kinds of patterns of the MAP of PUSCH and SAP is finished by the mode of RRC (Radio ResourceControl) high-level signaling.Equally, ascending control channel PUCCH (PhysicalUplink Control CHannel), A-SRS, P-SRS also can have SAP and two kinds of patterns of MAP.
Fig. 1 is the schematic diagram of PUSCH, PUCCH, A-SRS/P-SRS uplink multi-antenna port (MAP) pattern.As shown in Figure 1, under the MAP pattern, the PUSCH symbol is launched in the mode of transmit diversity or space division multiplexing on a plurality of antenna ports; PUCCH symbol mode with transmit diversity on a plurality of antenna ports is launched; Different P-SRS and the A-SRS sequences of each antenna port emission.
Fig. 2 is the schematic diagram of the up single antenna port of PUSCH, PUCCH, A-SRS/P-SRS (SAP) pattern.As shown in Figure 2, under the SAP pattern, the PUSCH symbol is only launched on an antenna port; The PUCCH symbol is only launched on an antenna port; Have only a P-SRS sequence and A-SRS sequence on described antenna port, to launch.
P-SRS keeps identical transmission mode with PUSCH, and even P-SRS is in the MAP pattern, and then PUSCH also is in the MAP pattern, and vice versa.If P-SRS is in the SAP pattern, then PUSCH also is in the SAP pattern, and vice versa.
PUCCH keeps identical transmission mode with PUSCH, and even PUCCH is in the MAP pattern, and then PUSCH also is in the MAP pattern, and vice versa.If PUCCH is in the SAP pattern, then PUSCH also is in the SAP pattern, and vice versa.
A-SRS can be independently of one another with the transmission mode of P-SRS, do not have relation one to one.The configuration of A-SRS can realize by one of following dual mode:
1. implicit expression mode
The base station does not have the signaling information about transmission mode in the dynamic dispatching instruction (promptly instructing about the dynamic dispatching of A-SRS) of the transmission mode of configuration A-SRS.
The base station disposes the transmission mode of A-SRS in the mode of dynamic dispatching, and under the situation about not offering some clarification in base station dynamic dispatching control signaling, there are the corresponding relation of implicit expression in A-SRS and P-SRS transmission mode, i.e. the identical transmission mode of A-SRS and P-SRS employing; Specifically, the base station dynamically disposes the transmission mode of A-SRS by down control channel PDCCH (PhysicalDownlink Control CHannel), if there is not the bit indication information of A-SRS transmission mode in the bit information of current PDCCH, then the transmission mode of A-SRS depends on the transmission mode of the current P-SRS that is disposed by semi-static mode.
The base station disposes the transmission mode of the A-SRS that strides sub-frequency spectrum (Cross Carrier) scheduling in the mode of dynamic dispatching, and under the situation about not offering some clarification in the base station dynamic dispatching control signaling, the A-SRS that strides sub-frequency spectrum scheduling adopts the transmission mode of MAP; Specifically, the base station dynamically disposes the transmission mode of the A-SRS that strides sub-frequency spectrum scheduling by PDCCH, if there is not the bit indication information of A-SRS transmission mode in the bit information of current PDCCH, the A-SRS that then strides sub-frequency spectrum scheduling adopts the transmission mode of MAP.
The base station disposes the transmission mode of the A-SRS that strides sub-frequency spectrum (Cross Carrier) scheduling in semi-static mode.If the base station is not the transmission mode of this A-SRS of user device configuration, then Shi Ji transmission mode is defaulted as the transmission mode of MAP.
2. explicit way
Promptly there is the clear and definite indication bit about the A-SRS transmission mode in the transmission mode of base station explanation A-SRS in dynamic dispatching control signaling in the control signaling.
Figure BSA00000165106200081
Power authorizes resource allocation
In LTE Rel.8/9 version, the formula of P-SRS power control is:
P SRS＝min{P cmax，P SRS_OFFSET+10log 10(M SRS)+P O_PUSCH+α·PL+f(i)}[dBm]
In this formula, P SRS_OFFSETBe the relevant biasing of subscriber equipment, M SRSTransmission bandwidth for P-SRS; PL is the path loss of channel between base station and the subscriber equipment; α is the path loss penalty coefficient; F (i) is the power adjustment of PUSCH; Specifically can be referring to 3GPP 36.213 agreements.Wherein, P O_PUSCHP SRS_OFFSET, M SRS, parameter such as α is configured in semi-static mode by the base station.
In LTE Rel.8/9 version, subscriber equipment has only a transmit antennas at a time, and in the follow-up version of LTE, signal can be launched on many antennas.Thus, compare with above-mentioned power control formula, the power control under many antennas is different with the power control of single antenna.
If the base station disposes the parameter of A-SRS semi-staticly, then the transmitting power computing formula of its A-SRS and the account form among the Rel.8/9 are similar.Specifically, the maximum transmission power P of subscriber equipment on a certain CC Cmax_ccUnder the given situation, because the use of multi-antenna technology makes that the maximum transmission power of each transmitting antenna port of subscriber equipment no longer is P Cmax_ccEvery day, the maximum transmission power of line cap depended on the transmission mode of A-SRS.The transmitting power of A-SRS reality can be obtained by following several account forms:
Mode one
The M of the semi-static configuration in base station A-SRS SRS_CC, P OPUSCH_CC, P SRS_OFFSET_CCAnd α Cc, be similar to the power configuration of R8P-SRS single emission pattern, then the transmitting power of the A-SRS of each antenna port or P-SRS is:
P SR_CC＝min{P cmax_CC-Δ PORTS_CC，P SRS_OFFSET_CC+10log 10(M SRS_CC)+P O_PUSCH_CC+α cc·PL CC}[dBm]
…(1)
Here, the power of the A-SRS sequence that each antenna port is launched is identical, P SRS_CCValue is the transmitting power of each sequence.Dispose in semi-static mode by the base station.Δ PORTS_CCOn this CC, launch the antenna port number of A-SRS simultaneously corresponding to current time; Δ PORTS_CCCan perhaps also can dispose by base station dynamic signaling notice by semi-static mode.M SRS_CC, P O_PUSCH_CC, P SRS_OFFSET_CCAnd α CcParameter for the base station is disposed on this CC is equal to the M in the Rel.8/9 version respectively SRS, P O_PUSCH, P SRS_OFFSETAnd α.PL CCFor going up employed path loss, this CC estimates.A-SRS and P-SRS can have P separately O_PUSCH_CCAnd P SRS_OFFSET_CCValue.
Mode two
The M of the semi-static configuration in base station A-SRS SRS_CC, P O_PUSCH_CC, P SRS_OFFSET_CCAnd α CcEtc. parameter, and utilize the power adjustment of the PUSCH on the current C C:
P SRS_CC＝min{P cmax_CC-Δ PORTS_CC，P SRS_OFFSET_CC+10log 10(M SRS_CC)+P O_PUSCH_CC+α cc·PL cc+f CC(i)}[dBm]
…(2)
Here, the power of the A-SRS sequence that each antenna port is launched is identical, P SRS_CCValue is the transmitting power of each sequence.Δ PORTS_CCOn this CC, launch the antenna port number of A-SRS simultaneously corresponding to current time; Δ PORTS_CCCan perhaps also can dispose by base station dynamic signaling notice by semi-static mode.M SRS_CC, P O_PUSCH_CC, P SRS_OFFSET_CCAnd α CcParameter for the base station is disposed on this CC is equal to the M in the Rel.8/9 version respectively SRS, P O_PUSCH, P SRS_OFFSETAnd α.PL CCFor going up employed path loss, this CC estimates.A-SRS and P-SRS can have P separately O_PUSCH_CCAnd P SRS_OFFSET_CCValue.f CC(i) adjust parameter for the power of the last PUSCH of current C C.
Mode three
The M of A-SRS SRS_CC, P O_PUSCH_CC, P SRS_OFFSET_CCAnd α CcDeng in partial parameters by the semi-static configuration in base station, the part by the dynamic notifying user equipment of physical layer signaling.
In order to improve configuration flexibility, partial parameters can be by the dynamic notifying user equipment of mode of physical layer signaling.
For example, (1) base station disposes M in semi-static mode SRS_CCα CcAnd P O_PUSCH_CC(perhaps P SRS_OFFSET_CC), by physical layer signaling dynamic-configuration P SRS_OFFSET_CC(perhaps P O_PUSCH_CC).
Perhaps, (2) base station disposes α in semi-static mode Cc, P O_PUSCH_CCAnd P SRS_OFFSET_CCEtc. parameter, by physical layer signaling dynamic-configuration M SRS_CC
Above-mentioned configuration mode does not influence computing formula (1) or (2) of A-SRS transmitting power.
Mode four
Adopt the computing method different, redefine the part configuration parameter with Rel.8/9P-SRS.
The power of definition A-SRS is controlled to be shown in formula (3) or the formula (4):
P SRS_CC＝min{P cmax_CC-Δ PORTS_CC，P O_CC+10log 10(M SRS_CC)+α cc·PL cc}[dBm]
…(3)
P SRS_CC＝min{P cmax_CC-Δ PORTS_CC，P O_CC+10log 10(M SRS_CC)+α cc·PL cc+f CC(i)}[dBm]
…(4)
Here, the power of the A-SRS sequence that each antenna port is launched is identical, P SRS_CCValue is the transmitting power of each sequence.Δ PORTS_CCOn this CC, launch the antenna port number of A-SRS simultaneously corresponding to current time; Δ PORTS_CCCan perhaps also can dispose by base station dynamic signaling notice by semi-static mode.α CcDispose in semi-static mode by the base station.f CC(i) adjust parameter for the power of the last PUSCH of current C C.M SRS_CCAnd P O_CCCan be with following arbitrary configuration mode:
(1) base station disposes M in semi-static mode SRS_CCAnd P O_CCPerhaps
(2) base station disposes M in semi-static mode SRS_CC(or P O_CC), with physics
Layer means of signaling dynamic-configuration P O_CC(or M SRS_CC).
Mode five
The A-SRS that above-mentioned formula (1-4) transmits based on each antenna opening has equal transmit power, P SRS_CCWhat identify is the employed transmitting power of each A-SRS antenna port.The control of A-SRS power also can realize by disposing the total transmitting power of all antenna port A-SRS.On each antenna port the transmitting power of A-SRS can by by the power division ratio of base station sets with the A-SRS sequence of power division to each antenna port.
P SSS_CC_tot?al＝min{P cmax_CC，P SRS_OFFSET_CC+10log 10(M SRS_CC)+P O_PUSCH_CC+Δ PORTS_CC+α cc·PL cc}[dBm]
…(5)
P SRS_CC_tot?al＝min{P cmax_CC，P SRS_OFFSET_CC+10log 10(M SRS_CC)+P O_PUSCH_CC+α cc·P Lcc+Δ PORTS_CC+f CC(i)}[dBm]
…(6)
P SRS_CC_tot?al＝min{P cmax_CC，10log 10(M SRS_CC)+P O_CC+Δ PORTS_CC+α cc·PL cc}[dBm]
…(7)
P SRS_CC_tot?al＝min{P cmax_CC，10log 10(M SRS_CC)+P O_CC+α cc·PL cc+Δ PORTS_CC+f CC(i)}[dBm]
…(8)
Formula (5) uses identical parameter configuration mode with formula (1);
Formula (6) uses identical parameter configuration mode with formula (2);
Formula (7) uses identical parameter configuration mode with formula (3);
Formula (8) uses identical parameter configuration mode with formula (4).
If currently have four A-SRS (SRS i, i=1 ... 4) sequence is launched on four antenna ports respectively, each SRS iTransmitting power P SRS_i_CCThe A-SRS power division ratio r=[r of each antenna port that can set according to the base station 1r 2r 3r 4] determine:
1. each antenna port constant power emission
Set r=[1/4 1/4 1/4 1/4], P SRS_i_CC=P SRS_CC_tot al/ 4, i=1,2,3,4
2. select specific antenna port with identical or different power emission
Set r=[1/2 0 1/2 0],
P SRS _ i _ CC = P SRS _ CC _ total / 2 i = 1 0 i = 2 P SRS _ CC _ total / 2 , i = 3 0 i = 4
Set r=[3/4 0 1/4 0],
P SRS _ i _ CC = 3 P SRS _ CC _ total / 4 i = 1 0 i = 2 P SRS _ CC _ total / 4 , i = 3 0 i = 4
3. each antenna port is with identical or different power emission
Set r=[3/8 1/8 1/8 3/8],
P SRS _ i _ CC = 3 P SRS _ CC _ total / 8 i = 1 P SRS _ CC _ total / 8 i = 2 P SRS _ CC _ total / 8 , i = 3 3 P SRS _ CC _ total / 8 i = 4
R=[r 1r 2r 3r 4] value can dispose in semi-static mode by the base station.
Determine the transmission mode of A-SRS by implicit expression or explicit mode, determine Δ by the transmission mode of A-SRS PORTS_CC, determine the maximum transmission power of each antenna port thus.For example, in any power calculation mode in mode one～mode five, if disposed 4 antenna ports, then Δs in the subscriber equipment uplink PORTS_CCValue can be 6dB, and then the transmitting power of each antenna port is P Cmax_cc-6dBm.
Figure BSA00000165106200124
Transmission and the configuration of P-SRS/A-SRS on SCC
In the follow-up version of LTE Rel.8/9, introduced the technology of spectrum aggregation (CarrierAggregation), made the subscriber equipment of FDD standard on the multistage uplink spectrum, to launch simultaneously, on the multistage downstream spectrum, received.At the multistage that subscriber equipment uses in the up or downstream spectrum, have one section frequency spectrum be the dominant frequency spectrum (Primary Component Carrier, PCC), other then be secondary frequency spectrum (Secondary Component Carrier, SCC).Thus, the subscriber equipment of FDD standard respectively has a PCC at the uplink and downlink frequency spectrum, some uplink and downlink SCC.Correspondingly, for the subscriber equipment of TDD standard, also there are a up PCC and descending PCC, some uplink and downlink SCC.With two PCC of FDD subscriber equipment different is TDD terminal may be corresponding to the different Transmission Time Interval TTI (TransmissionTime Interval) of same CC.
When the SCC that subscriber equipment disposed was in unactivated state, this up SCC did not transmit any signal (comprising P-SRS, A-SRS etc.).
The scheduling of base station on SCC can be undertaken by one of following dual mode:
1.A-SRS all launch on SCC with P-SRS, the base station is according to both measurements are dispatched; Perhaps
2. the base station only relies on the measurement result of A-SRS to be implemented in scheduling on the SCC, and promptly subscriber equipment is not launched the P-SRS signal on SCC.
In the base station according to A-SRS and P-SRS under the situation that the measurement on the SCC is dispatched, SCC is changed and can be undertaken by one of following dual mode to state of activation by unactivated state:
1. the emission of up P-SRS is controlled in the base station with descending MAC means of signaling;
The base station can comprise the active information of P-SRS in the MAC signaling, the numbering of the up CC of carrying P-SRS etc.; Equally, the base station also can stop to launch P-SRS by MAC means of signaling notifying user equipment.
Perhaps
2. the base station is A-SRS, P-SRS scheduling and transmission time sequence graphs of a relation on SCC by the transmission diagram 3 that scheduling A-SRS activates up P-SRS.
1) at first scheduling user's set is launched A-SRS on SCC;
A-SRS is launched by the physical layer control channel scheduling user's set constantly at t in the base station on SCC.Elapsed time postpones Δ t 1, subscriber equipment t 1The time be engraved in emission A-SRS sequence on the resource of base station configuration, here t 1=t+ Δ t 1, can define a timer here, its timing duration is Δ t 1When timing finished, subscriber equipment was launched the A-SRS sequence on the resource of base station configuration.
2) subscriber equipment postpones back emission P-SRS sometime;
From subscriber equipment A-SRS sequence x time t 1Postpone Δ t 2, subscriber equipment is at t 2In time, is engraved on the resource that the base station disposes and launches P-SRS, here, and t 2=t 1+ Δ t 2Can define a timer, its timing duration is Δ t 2When timing finished, subscriber equipment was launched the P-SRS sequence on the resource of base station configuration.
Under the situation of concrete sequential relationship shown in Figure 3, can there be multiple choices the time of base station configuration P-SRS parameter, and Fig. 4 is the selection of time schematic diagram of base station configuration P-SRS parameter, as shown in Figure 4, the configuration of P-SRS can:
1) Option 1: after subscriber equipment emission A-SRS, the base station is according to the testing result of A-SRS, semi-static or dynamic-configuration P-SRS.
As shown in Figure 4, subscriber equipment is at t 1Up emission A-SRS sequence of the moment, the base station is the parameter of user device configuration P-SRS according to the testing result to the A-SRS sequence.
This layoutprocedure is at t 3Finished constantly, promptly at t 3Constantly, subscriber equipment has obtained the parameter configuration of its P-SRS.Here, t 1≤ t 3≤ t 2
2) Option 2: finish the scheduling of subscriber equipment A-SRS in the base station after, and semi-static or dynamic-configuration P-SRS;
As shown in Figure 4, after moment t finished the scheduling of A-SRS, the P-SRS configuration was determined according to the existing resources distribution condition in the base station.This layoutprocedure is at t 3Finished constantly, promptly at t 3Constantly, subscriber equipment has obtained the parameter configuration of its P-SRS.
3) Option 3: subscriber equipment is not before doing any transmission on the SCC, the base station has disposed the parameter of P-SRS for it.
As shown in Figure 4, before moment t, subscriber equipment transmits without any signal on SCC.Subscriber equipment has the P-SRS resource that is disposed by the semi-static mode in base station on SCC.
t 3Constantly by t 2Constantly shifting to an earlier date a certain definite time determines.
When PUSCH end of transmission on SCC, and no base station scheduling in a period of time, the emission that SCC goes up P-SRS can be closed by scheduling user's set in the base station, reaches purpose of power saving with this.Perhaps also can need not base station scheduling,, when condition satisfies, stop the emission of P-SRS on SCC voluntarily by subscriber equipment by the definition certain conditions.Can adopt any one or its combination in following several modes specifically:
1. base station dynamic dispatching
The base station stops emission by physical layer control channel PDCCH dynamic dispatching P-SRS.
Mode one: the control bit of reusing A-SRS
The base station disposes all or the part resource of A-SRS in semi-static mode, uses one or several bits to determine the scheduling situation of A-SRS in PDCCH.Since A-SRS be single scheduling once or repeatedly transmission, therefore, other states about the control bit of A-SRS among the PDCCH can be used for redefining.Set abcde and amount to the scheduling control information that five bits characterize A-SRS.Then can set
Abcd1: subscriber equipment is carried out the A-SRS transmission
ABCD0: subscriber equipment stops to transmit P-SRS, the up CC. that perhaps stops using this PDCCH and dispatched
Mode two: with other control domain bit combined codings
The base station disposes all or the part resource of A-SRS in semi-static mode, uses one or several bits to determine the scheduling situation of A-SRS in PDCCH.For subscriber equipment can reliable reception about the control information of P-SRS, can unite the control bit that uses A-SRS and the control information bit in some other territories.Set abc and amount to the scheduling control information that three bits characterize A-SRS, other has the special state position 00 of the bit fg in other territories can be for uniting use, and then the up control information that stops to transmit of P-SRS can be expressed as the form of (abc fg)/(000 00).
2. definition certain conditions
When condition satisfied, subscriber equipment stopped the emission of P-SRS.
1) one of definition as if in the time T (value can be zero) of definition, does not comprise any other transmission of PUSCH about there not being the timer of up scheduling or transmission operation, and then subscriber equipment stops the emission of P-SRS;
Fig. 5 is the schematic diagram that subscriber equipment stops P-SRS voluntarily, as shown in Figure 5:
At t 4Constantly, subscriber equipment is done the emission of up PUSCH, the next buffer memory free of data transmission constantly of subscriber equipment, and timer picks up counting, and the timing duration is T, and timer is at t 5Constantly stop timing, as if the scheduling or the transmission that do not have PUSCH at T in the time, then at the timer timing t finish time 5Begin to stop the emission of P-SRS.If at T scheduling or the transmission of PUSCH took place in the time, the replacement timer, and restart timing in the moment (being that the next buffer memory free of data constantly of subscriber equipment is transmitted) that subscriber equipment is done last PUSCH transmission.
2) one of definition is about not having up scheduling or transmission operation counter, if P-SRS has launched pre-determined number N (value can be zero), and at this moment in the section, do not comprise any other transmission of PUSCH, and then subscriber equipment stops the emission of P-SRS; Fig. 6 is the schematic diagram that subscriber equipment cuts out P-SRS voluntarily, as shown in Figure 6: at t 4Constantly, subscriber equipment is done the emission of up PUSCH, the next buffer memory free of data transmission constantly of subscriber equipment, and counter picks up counting, at t 4There are not scheduling or the transmission of PUSCH in the time that N the P-SRS transmission in back constantly experienced, then at the rolling counters forward t finish time 5Begin to stop the emission of P-SRS.If t 4The time be carved into the number of transmissions of P-SRS in time of scheduling that PUSCH takes place or transmission less than N time, counter reset then, and restart counting in the moment (being the next buffer memory free of data transmission constantly of subscriber equipment) that subscriber equipment is done last PUSCH transmission.
3) define one about there not being the counter of up scheduling or transmission operation: be defined in after certain TTI, if PUSCH transmits certain times N (value can serve as zero) continuously with specific form, then subscriber equipment stops the emission of P-SRS.
Fig. 7 is the flow chart that subscriber equipment cuts out P-SRS voluntarily, and the specific implementation method is:
In the step S700. user t moment, the buffer memory free of data that subscriber equipment is current is provided with the number of transmissions counter n=0, the up emission dispatch request of subscriber equipment;
Behind the some TTI of step S710., the base station is the channel resource of user equipment allocation uplink;
Step S720. user equipment side MAC layer passes among the MAC PDU of its physical layer and does not contain MAC SDU, and the buffer memory of subscriber equipment report BSR (Buffer StateReport) indication subscriber equipment buffer memory still has data, and promptly subscriber equipment is still to the base station requests scheduling resource;
Step S730. the number of transmissions counter increases progressively n=n+1;
Step S740. judges that whether the number of transmissions counter n is greater than defined maximum transmission times N;
If n≤N (step S740 "No") then returns step S710;
If n＞N (step S740 "Yes"), then execution in step S750;
The transmission of step S750.PUSCH reaches the number of times of setting, and (base station, the back of n＞N) is the user equipment allocation uplink transmission resource;
The MAC PDU that the MAC of step S760. subscriber equipment passes to physical layer does not contain MAC SDU, and the buffer memory of subscriber equipment report BSR indication subscriber equipment buffer memory free of data;
Step S770. user stops up P-SRS emission.
3.MAC layer signaling
Control P-SRS stops the bit information of up emission also can be realized by MAC layer signaling.
To be the base station stop the schematic diagram of P-SRS emission with MAC signaling method dispatch terminal user to Fig. 8, as shown in Figure 8: can comprise the switching information of P-SRS in MAC CE (Control Element), for example CI (Carrier Indicator) etc.
Stop the emission of P-SRS on SCC and mean that this SCC is converted to unactivated state by state of activation.
In above description, at each step, enumerated a plurality of examples, though the inventor indicates example associated with each other as much as possible, this does not also mean that must there be corresponding relation in these examples according to corresponding label.As long as selected example do not have contradiction between given condition, can in different steps, select the not corresponding example of label to constitute the corresponding techniques scheme, such technical scheme also should be considered as within the scope of the invention involved.
So far invention has been described in conjunction with the preferred embodiments.Should be appreciated that those skilled in the art can carry out various other change, replacement and interpolations under the situation that does not break away from the spirit and scope of the present invention.Therefore, scope of the present invention is not limited to above-mentioned specific embodiment, and should be limited by claims.

Claims (18)

1. the Poewr control method of a up multi-input multi-ouput channel comprises:
By the traditional interception reference signal in base station and aperiodic interception reference signal be set to transmission mode independent of each other;
Dispose the some or all of parameter of interception reference signal aperiodic by the base station semi-staticly, and the parameter that is disposed is notified to subscriber equipment; And
According to the parameter that is disposed, determine the actual emission power of interception reference signal aperiodic by subscriber equipment, and carry out the emission of interception reference signal aperiodic according to set transmission mode.
2. Poewr control method according to claim 1 is characterized in that
Do not comprise the signaling information about transmission mode in the dynamic dispatching instruction about interception reference signal aperiodic, at this moment, aperiodic, interception reference signal adopted the transmission mode identical with traditional interception reference signal.
3. Poewr control method according to claim 1 is characterized in that
Comprise the indication bit about transmission mode in the dynamic dispatching instruction about interception reference signal aperiodic, at this moment, aperiodic, interception reference signal adopted the indicated transmission mode of described indication bit.
4. according to the described Poewr control method of one of claim 1～3, it is characterized in that
The base station by the configuration each antenna port aperiodic interception reference signal parameter, dispose on each antenna port aperiodic interception reference signal actual emission power.
5. according to the described Poewr control method of one of claim 1～3, it is characterized in that
All antenna ports of base station configuration aperiodic interception reference signal the total transmitting power and the power division ratio of each antenna port, dispose on each antenna port aperiodic interception reference signal actual emission power.
6. according to the described Poewr control method of one of claim 1～5, it is characterized in that
The base station scheduling subscriber equipment on secondary frequency spectrum, launch traditional interception reference signal and aperiodic interception reference signal.
7. according to the described Poewr control method of one of claim 1～5, it is characterized in that
The base station scheduling subscriber equipment is only launched interception reference signal aperiodic on secondary frequency spectrum, and does not launch traditional interception reference signal.
8. Poewr control method according to claim 6 is characterized in that
Traditional interception reference signal is launched with descending media access control layer means of signaling control subscriber equipment in the base station, thus make subscriber equipment from the unactivated state of on secondary frequency spectrum, not launching any signal be transformed into the secondary frequency spectrum traditional interception reference signal of emission and aperiodic interception reference signal state of activation.
9. Poewr control method according to claim 6 is characterized in that
Interception reference signal aperiodic is launched in base station at first scheduling user's set on secondary frequency spectrum, thus make subscriber equipment from the unactivated state of on secondary frequency spectrum, not launching any signal be transformed into the secondary frequency spectrum traditional interception reference signal of emission and aperiodic interception reference signal state of activation.
10. Poewr control method according to claim 9 is characterized in that
Subscriber equipment through predetermined time delay, is launched traditional interception reference signal on secondary frequency spectrum behind emission interception reference signal aperiodic on the secondary frequency spectrum.
11. Poewr control method according to claim 10 is characterized in that
Subscriber equipment is behind emission aperiodic interception reference signal on the secondary frequency spectrum, and the base station is according to the testing result of interception reference signal aperiodic, the parameter of the semi-static or traditional interception reference signal of dynamic-configuration.
12. Poewr control method according to claim 10 is characterized in that
The prior semi-static parameter that disposes traditional interception reference signal in base station.
13., it is characterized in that according to the described Poewr control method of one of claim 6～12
The base station scheduling subscriber equipment stops the emission of traditional interception reference signal on subcarrier, thereby makes subscriber equipment be transformed into unactivated state from state of activation.
14. Poewr control method according to claim 13 is characterized in that
The base station is by physical layer control channel, and the dynamic dispatching subscriber equipment stops the emission of traditional interception reference signal.
15. Poewr control method according to claim 14 is characterized in that
The control bit that interception reference signal aperiodic is reused in the base station represents to be used to stop the signaling bit of the emission of traditional interception reference signal; Perhaps
Signaling bit and other control domain bits that the base station will be used to stop the emission of traditional interception reference signal carry out combined coding.
16. Poewr control method according to claim 13 is characterized in that
The base station is by the media access control layer signaling, and the dynamic dispatching subscriber equipment stops the emission of traditional interception reference signal.
17., it is characterized in that according to the described Poewr control method of one of claim 6～12
When satisfying predetermined condition, subscriber equipment stops the emission of traditional interception reference signal on subcarrier voluntarily, thereby is transformed into unactivated state from state of activation.
18. Poewr control method according to claim 17 is characterized in that
Described predetermined condition comprises at least one in the following condition:
Within the predetermined time, there are not other transmission on the Uplink Shared Channel;
In the time period of traditional interception reference signal of launching pre-determined number, there are not other transmission on the Uplink Shared Channel always;
After certain Transmission Time Interval on Uplink Shared Channel, the information of the predetermined format on the Uplink Shared Channel is transmitted pre-determined number.
CN2010102132882A 2010-06-24 2010-06-24 Power control method of uplink multi-input multi-output channel Pending CN102300303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010102132882A CN102300303A (en) 2010-06-24 2010-06-24 Power control method of uplink multi-input multi-output channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010102132882A CN102300303A (en) 2010-06-24 2010-06-24 Power control method of uplink multi-input multi-output channel

Publications (1)

Publication Number Publication Date
CN102300303A true CN102300303A (en) 2011-12-28

Family

ID=45360391

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010102132882A Pending CN102300303A (en) 2010-06-24 2010-06-24 Power control method of uplink multi-input multi-output channel

Country Status (1)

Country Link
CN (1) CN102300303A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013120405A1 (en) * 2012-02-15 2013-08-22 华为技术有限公司 Method and device for carrier scheduling
WO2014114272A1 (en) * 2013-01-28 2014-07-31 Qualcomm Incorporated Method and apparatus for utilizing a reconfiguration timer for updating tdd configuration
WO2014113987A1 (en) * 2013-01-28 2014-07-31 Qualcomm Incorporated Method and apparatus for utilizing a reconfiguration timer for updating tdd configuration
CN106465195A (en) * 2014-02-20 2017-02-22 高通股份有限公司 Time domain duplexing configuration for eimta
CN106961721A (en) * 2016-01-11 2017-07-18 中兴通讯股份有限公司 A kind of method and terminal for realizing uplink power control
CN107317660A (en) * 2016-04-26 2017-11-03 北京信威通信技术股份有限公司 Detection reference signal sending method and device
WO2018028660A1 (en) * 2016-08-12 2018-02-15 夏普株式会社 User equipment, base station, and power control method therefor
CN108023705A (en) * 2016-11-04 2018-05-11 维沃移动通信有限公司 A kind of semi-static reference signal configuration, receiving/transmission method, base station and terminal
WO2019158064A1 (en) * 2018-02-14 2019-08-22 华为技术有限公司 Method and apparatus for transmitting sounding reference signal
CN110971317A (en) * 2018-09-29 2020-04-07 华为技术有限公司 Power indication method and device
CN111183593A (en) * 2017-10-02 2020-05-19 联想（新加坡）私人有限公司 Uplink power control
CN111586874A (en) * 2019-02-15 2020-08-25 华为技术有限公司 Method for adjusting antenna parameters and related device
CN111757481A (en) * 2019-03-29 2020-10-09 中国移动通信有限公司研究院 Power control method, device, equipment and storage medium

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013120405A1 (en) * 2012-02-15 2013-08-22 华为技术有限公司 Method and device for carrier scheduling
US10009164B2 (en) 2013-01-28 2018-06-26 Qualcomm Incorporated Method and apparatus for utilizing a reconfiguration timer for updating TDD configuration
WO2014114272A1 (en) * 2013-01-28 2014-07-31 Qualcomm Incorporated Method and apparatus for utilizing a reconfiguration timer for updating tdd configuration
WO2014113987A1 (en) * 2013-01-28 2014-07-31 Qualcomm Incorporated Method and apparatus for utilizing a reconfiguration timer for updating tdd configuration
CN106465195A (en) * 2014-02-20 2017-02-22 高通股份有限公司 Time domain duplexing configuration for eimta
CN106961721A (en) * 2016-01-11 2017-07-18 中兴通讯股份有限公司 A kind of method and terminal for realizing uplink power control
US10932199B2 (en) 2016-01-11 2021-02-23 Zte Corporation Method and terminal for implementing uplink power control
CN107317660A (en) * 2016-04-26 2017-11-03 北京信威通信技术股份有限公司 Detection reference signal sending method and device
WO2018028660A1 (en) * 2016-08-12 2018-02-15 夏普株式会社 User equipment, base station, and power control method therefor
CN108023705B (en) * 2016-11-04 2021-01-08 维沃移动通信有限公司 Semi-static reference signal configuration and transceiving method, base station and terminal
CN108023705A (en) * 2016-11-04 2018-05-11 维沃移动通信有限公司 A kind of semi-static reference signal configuration, receiving/transmission method, base station and terminal
CN111183593A (en) * 2017-10-02 2020-05-19 联想（新加坡）私人有限公司 Uplink power control
WO2019158064A1 (en) * 2018-02-14 2019-08-22 华为技术有限公司 Method and apparatus for transmitting sounding reference signal
US11234198B2 (en) 2018-02-14 2022-01-25 Huawei Technologies Co., Ltd. Sounding reference signal transmission method, and apparatus
CN110971317A (en) * 2018-09-29 2020-04-07 华为技术有限公司 Power indication method and device
CN110971317B (en) * 2018-09-29 2021-09-21 华为技术有限公司 Power indication method and device
CN111586874A (en) * 2019-02-15 2020-08-25 华为技术有限公司 Method for adjusting antenna parameters and related device
CN111586874B (en) * 2019-02-15 2022-11-25 华为技术有限公司 Method for adjusting antenna parameters and related device
CN111757481A (en) * 2019-03-29 2020-10-09 中国移动通信有限公司研究院 Power control method, device, equipment and storage medium

Similar Documents

Publication Publication Date Title
CN102300303A (en) Power control method of uplink multi-input multi-output channel
US10312989B2 (en) Antenna port mode and transmission mode transition
AU2010242680B2 (en) User equipment, base station device, and communication control method
CN114586307A (en) SRS configuration and indication for codebook and non-codebook based UL transmissions in a network
EP3989651B1 (en) Reporting power headroom for aggregated carriers
CN102573030B (en) Uplink power control method and device
CN105338610B (en) Method and apparatus in mobile telecom network
CN107079323A (en) Authorize and the improved channel status information reports on unauthorized carrier wave
CN103124428B (en) Method and device for controlling uplink power
US8861624B2 (en) Method of transmitting signal in a wireless system
KR20160048907A (en) Method and system for configuring a sounding reference signal power control parameter in a time-division duplexing system
CN102378341A (en) Uplink power control method and device
CN106031256A (en) Method and apparatus for controlling uplink power in wireless
CN111901021A (en) Method, apparatus and medium for determining transmission parameter, transmission power, PHR
EP4099767A1 (en) Transmission power determination method and apparatus, device, and storage medium
CN102075274A (en) Multi-antenna parameter configuration method and device for sounding reference signals (SRSs)
EP3906728A1 (en) Device, network, and method for sounding reference signal transmission and reception
CN103238363A (en) Method and device for transmitting downlink control signal in wireless communication system
CN102065530B (en) Determination method, base station and the subscriber equipment of Serving cell
KR20120103747A (en) Method and device for reporting maximum power of carrier in carrier aggregation scenario
CN104185261A (en) Method, device and system used for performing wireless communication in wireless communication system
WO2014208951A1 (en) Method for controlling transmission power of sounding reference signal and apparatus for same
CN114503694B (en) Method and apparatus for transmitting and receiving sounding reference signal in wireless communication system
CN114503497B (en) Method and apparatus for transmitting and receiving sounding reference signal in wireless communication system
WO2021212364A1 (en) Method and apparatus for power control of pusch repetition

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20111228