CN102427608A - Method and device for sending SRS (Sounding Reference Symbol) and indicating to send SRS - Google Patents

Method and device for sending SRS (Sounding Reference Symbol) and indicating to send SRS Download PDF

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CN102427608A
CN102427608A CN2011104020424A CN201110402042A CN102427608A CN 102427608 A CN102427608 A CN 102427608A CN 2011104020424 A CN2011104020424 A CN 2011104020424A CN 201110402042 A CN201110402042 A CN 201110402042A CN 102427608 A CN102427608 A CN 102427608A
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srs
transmitted power
information
configuration information
indication
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CN102427608B (en
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陈文洪
高秋彬
彭莹
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Priority to PCT/CN2012/079335 priority patent/WO2013082948A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels

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Abstract

The invention discloses a method and a device for sending an (Sounding Reference Symbol) and indicating to send the SRS (Sounding Reference Symbol). The method comprises the following steps: confirming configuration information of UE (User Equipment), which is used for confirming at least two SRS transmitted powers, wherein the at least two SRS transmitted powers are transmitted powers used for measuring with different aims; and indicating the confirmed configuration information to the UE, so that the UE confirm the at least two SRS transmitted powers according to the indication, and transmitting the SRS by adopting the different SRS transmitted powers at different moments. According to the invention, the UE can use different transmitted powers to transmit the SRS at different moments according to different requirements, so that the transmitted powers of the SRS can meet the requirements of upload measurement and download measurement.

Description

A kind of method and apparatus that sends SRS and indication SRS transmission
Technical field
The present invention relates to wireless communication technology field, relate in particular to the method and apparatus of a kind of SRS of transmission and indication SRS transmission.
Background technology
At existing LTE-A (Long Term Evolution-Advance; Long-term evolution upgrading) in the system; Uplink SRS (Sounding Reference Symbol; Detection reference signal) thus uplink scheduling is carried out in the measurement that can be used for uplink signal-channel quality, also can utilize the channel heterogeneite to be used to obtain descending channel information, thereby carry out descending scheduling and transmission.
Have at present two kinds of dissimilar uplink SRS in the standard: cycle SRS and aperiodic SRS.Cycle SRS need be by the transmission cycle of base station configuration SRS, and the terminal is according to the transmission SRS of configuration cycle property; Aperiodic, SRS was triggered through PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) by the base station, triggered the terminal, back and only sent SRS one time.
The transmitted power of uplink SRS is obtained by following formula:
P SRS，c＝min{P OMAX，c，P SRS_OFFSET，c(m)+10log 10(M SRS，c)+P O_PUSCH，c+α c·PL c+f c}
P wherein CMAX, cBe the maximum transmit power of UE, P SRS_OFFSET, c(m) be SRS transmitted power adjusted value, m=0 and m=1 be the transmitted power adjusted value of indication cycle SRS and SRS aperiodic respectively, and its span determines that by higher level parameters Ks when Ks=0, its span is [10.5,12], and step-length is 1.5dB; When Ks=1.25, its span is [3,12], and step-length is 1dB, and concrete value is notified by high-level signaling; (M SRS, c) be the transmission bandwidth of SRS, P O_PUSCH, cBe Cell Broadcast CB parameter P O_Nominal_PUSCHThe high-rise power control parameters P special-purpose with UE O_UE_PUSCHWith, α cBe compensating factor, PL cBe that descending path loss is estimated; Measured by the UE end, its value is CRS (Cell Reference Signal, the cell reference signals) transmitted power of descending base station and RSRP (the Reference Signal Receiving Power that UE reports; Reference Signal Received Power) ratio, f cBe the power control parameters of closed loop, obtain through the power control commands among DCI (Downlink Control Information, the Downlink Control Information) format0/4/3/3A.f cCan be that accumulated value also can be an absolute value.Wherein, for parameter P O_UE_PUSCHAnd f c, the former can carry out quasi-static power control through the high-level signaling notice, takies 4 bits, and scope is [7,8], step-length 1dB.The latter can be to a preceding value and δ through the PDCCH signaling PUSCHAccumulated value also can be absolute value f c=δ PUSCH
The δ that the power control parameters of indicating among the different DCI format obtains PUSCHValue is different, and is specifically as shown in table 1:
Table 1
Figure BDA0000116741890000021
RRH (Chinese and English full name) claims RRU (Ratio Remote Unit, RF far-end module), RRE (Chinese and English full name), spaced antenna etc. again, is a radio frequency unit that separates with BBU (Building Base band Unit, baseband processing unit).Usually RRH and BBU are placed on different geographical.RRH comprises parts such as radio circuit, A/D conversion, D/A conversion, light delivery module.RRH is connected with BBU through optical fiber.Distributed RRH is a kind of network form of utilizing the RRH networking.RRH is dispersed in inside, a sub-district, because the distance at distance users terminal is less, can high-quality communication service be provided to the terminal.Because the data of RRH are all focused on by BBU, this has brought possibility with regard to giving the efficient collaboration, both between the RRH, and therefore distributed RRH becomes an important scene of CoMP (Coodinated Multi-Point, collaborative multicast communication) research.
The deployment of distributed RRH is according to having or not grand station can be divided into two kinds: do not have grand station and grand station is arranged.The RRH that is depicted as grand station like Fig. 1 a disposes, and wherein, the scene that grand station is arranged generally is that the RRH that on existing network foundation, increases covers with the focus that satisfies some areas.Have the RRH at grand station need not cover all positions, so its geographical position generally is at random (position with focus occurs is relevant), the RRH that does not have grand station needs all positions of coverage cell.
In up UL CoMP transmission, the network side receiving terminal can improve the detection performance through the merging that receives signal through receiving the data that UE (User Equipment, subscriber equipment) sends on a plurality of transmission points (comprising above-mentioned RRH) simultaneously.At this moment; Uplink SRS can be used for the detection of up channel, and the network side receiving terminal is confirmed the set of transmission point according to channel strength on the one hand, dispatches according to the channel information of surveying on the other hand; Confirm RI (the Rank Indication of UE transmission; The order indication)/PMI (Precoding Metrix Indicator, pre-coding matrix index)/CQI measurement parameters such as (Channel Quality Indicator, channel quality indications).Because up PUSCH (Physical Uplink Shared Channel; Physical Uplink Shared Channel) transmitted power is unique; A general detection of only need several transmission points nearest apart from UE carrying out channel gets final product, and the transmitted power of SRS only need satisfy the measurement of these points.Such as in Fig. 1 a and Fig. 1 b, only need two nearest RRH to carry out the sounding detection and get final product.
In descending DL CoMP transmission; The network side receiving terminal utilizes the measurement of uplink SRS to obtain descending channel information according to the channel heterogeneite; These channel informations both can be used for scheduling; Confirm cooperation set/measuring assembly/transmission set and frequency domain resource and the CQI of UE, also can be used for CS (Chinese and English the full name)/CB (Chinese and English full name) or JP CoMP such as (Chinese and English full name) the transmission operation of base station end.
Because the transmitted power of different transmission points maybe be different; The cooperation set of UE covers bigger scope and more transmission point possibly; If on these transmission points, all will carry out the measurement of SRS, then need SRS with bigger transmitted power emission, could guarantee measuring reliability.Such as in Fig. 1 a, grand station Macro and all RRH in the cooperation set of UE1 and UE2, will carry out the detection of SRS.
In the prior art cycle SRS and aperiodic SRS all have only unique transmission power value, can not satisfy different up channel and measure demand.If according to the demand allocating power value of uplink, then can't satisfy the demand of descending definite measuring assembly; If send SRS according to bigger transmitted power, then the measurement for uplink is the waste of power.
Summary of the invention
The present invention provides a kind of SRS of transmission and the method and apparatus that indication SRS sends, and can make the transmitted power of SRS satisfy the demand of uplink measurement and downlink transfer measurement.
The method that the present invention provides a kind of network equipment indication detection reference signal SRS to send comprises:
Confirm the configuration information that is used for confirming at least two SRS transmitted powers of user equipment (UE), said at least two SRS transmitted powers are the transmitted power of using when being used for the measurement of various objectives;
The configuration information of confirming is indicated to said UE, so that said UE confirms at least two SRS transmitted powers according to indication, and indication UE adopts different SRS transmitted powers to send SRS on different resources.
The present invention also provides a kind of user equipment (UE) to send the method for SRS, comprising:
Receive the configuration information that is used for confirming at least two SRS transmitted powers of network equipment indication; Said at least two SRS transmitted powers; The transmitted power that comprises the SRS use that is used for the up channel measurement reaches the transmitted power that is used for the SRS use of down channel measurement according to the channel heterogeneite;
Confirm at least two SRS transmitted powers according to said configuration information, and on different resource, adopt different SRS transmitted powers to send SRS according to the indication of network equipment.
The present invention also provides a kind of network equipment, comprising:
The power configuration unit is used for confirming that the configuration information that is used for confirming at least two SRS transmitted powers of user equipment (UE), said at least two SRS transmitted powers are the transmitted power of using when being used for the measurement of various objectives;
The power configuration indicating member is used for the configuration information of confirming is indicated to said UE, so that said UE confirms at least two SRS transmitted powers according to indication, and indication UE adopts different SRS transmitted powers to send SRS on different resources.
The present invention also provides a kind of user equipment (UE), comprising:
The power configuration acquiring unit is used to receive the configuration information that is used for confirming at least two SRS transmitted powers that network equipment is indicated;
The SRS transmitting element is used for confirming at least two SRS transmitted powers according to said configuration information, and adopts different SRS transmitted powers to send SRS according to the indication of network equipment constantly in difference.
Utilize the method for method, UE and the transmission SRS thereof of network equipment provided by the invention and indication SRS transmission thereof; Has following beneficial effect: can make UE engrave the transmission of carrying out SRS with different transmitted powers when the difference according to different demands, make the transmitted power of SRS satisfy the demand that uplink measurement and downlink transfer are measured; When satisfying the demands, reduce the SRS transmitted power as far as possible.
Description of drawings
Uplink when Fig. 1 a is different districts ID under the RRH scene and downlink transfer sketch map;
Uplink when Fig. 1 b is same cells ID under the RRH scene and downlink transfer sketch map;
Fig. 2 is the method flow diagram that network equipment indication SRS sends in the embodiment of the invention;
Fig. 3 is the method flow diagram that UE sends SRS in the embodiment of the invention;
Fig. 4 is a network equipment structure chart in the embodiment of the invention;
Fig. 5 is a UE structure chart in the embodiment of the invention.
Embodiment
The method of method, UE and the transmission SRS thereof that network equipment provided by the invention and indication SRS thereof is sent below in conjunction with accompanying drawing and embodiment illustrates in greater detail.
In existing LTE-A system, thereby can being used for the measurement of uplink signal-channel quality, SRS carries out uplink scheduling, also can utilize the channel heterogeneite to be used to obtain descending channel information, thereby carry out descending scheduling and transmission.In the CoMP system, because the independence of up-downgoing transmission, the channel that uplink need be measured often is different with the channel information that downlink transfer need obtain, and the transmission point set that therefore need carry out the sounding measurement is also different.For uplink, measurement point all is the transmission point nearer apart from UE usually, so the SRS transmitted power need not be too high; And if metrical information is the selection that is used for descending CoMP set, then need transmission point measurement in a big way, measurement requirement SRS transmitted power also can be higher.In order to satisfy different measuring requirements; Reduce simultaneously the transmitted power of SRS as far as possible; The present invention has implemented to propose the method for method, UE and the transmission SRS thereof of a kind of network equipment and indication SRS transmission thereof, describes below in conjunction with the accompanying drawing specific embodiments of the invention.
In declarative procedure, elder generation is described from the enforcement of network side and UE side respectively, with instance the cooperation of the two is implemented to describe then; But this does not also mean that the two must cooperate enforcement; In fact, when UE and network equipment separate when implementing, also solved the problem that on UE side, network side, exists respectively; When just the two is used in combination, can obtain better technique effect.
Method as shown in Figure 2, that network equipment indication SRS sends comprises:
Step 201; Confirm the configuration information that is used for confirming at least two SRS transmitted powers of user equipment (UE); Said at least two SRS transmitted powers, the transmitted power of using when being used for the measurement of various objectives, preferably; The transmitted power that specifically comprises the SRS use that is used for the up channel measurement reaches the transmitted power that is used for the SRS use of down channel measurement according to the channel heterogeneite;
Step 202 indicates the configuration information of confirming to said UE, so that said UE confirms at least two SRS transmitted powers according to indication, and indication UE adopts different SRS transmitted powers to send SRS on different resources.
The method that the embodiment of the invention provides; Configuration information to the UE indication can be confirmed at least two SRS transmitted powers; Thereby make UE on different resource, carry out the transmission of SRS with different transmitted powers; Because these two transmitted powers comprise SRS transmitted power that satisfies the up channel measurement requirement and the SRS transmitted power that satisfies the down channel measurement requirement; Therefore, can reduce as far as possible under the situation of transmitted power of SRS, make the transmitted power of SRS satisfy the demand that uplink measurement and downlink transfer are measured.
The method that network equipment indication SRS provided by the invention sends is suitable for being applied in the CoMP system, and then above-mentioned network equipment is specially the base station of communicating by letter with UE.For the situation that macro base station is arranged, can for the situation of no macro base station, be low power nodes (RRH) for macro base station or low power nodes (RRH).
UE sends the SRS mode and comprises periodic transfer property transmitting SRS and aperiodicity transmitting SRS; Specifically be that network side is indicated to UE; Or mode such as on UE, dispose separately; Provide under periodic transfer property transmitting SRS and the aperiodicity transmitting SRS situation preferred implementation that network equipment indication SRS of the present invention sends below respectively.
For the situation of cyclical transmission SRS, the configuration information that is used for confirming at least two SRS transmitted powers of UE is confirmed in the base station, and the configuration information of confirming is indicated to UE; For sending cycle and/or SRS transmission resource occupation information and indication, the corresponding SRS of each SRS transmitted power configuration gives UE, so that UE adopts different SRS transmitted powers to send SRS on different resources.These indications can be to indicate simultaneously, also can be to indicate respectively.
Preferably, above-mentioned indication can send to UE through high-level signaling.
Preferably, in the embodiment of the invention, be used for confirming the configuration information of at least two SRS transmitted powers, specifically comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power, wherein to the different values of same relative parameters setting; Perhaps specifically comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power, and the new argument and the new argument value that are used for confirming the new value of relevant parameter that increase newly, in the said configuration information, to value of same relative parameters setting.
Preferably, the relevant parameter in the setting formula of calculating SRS transmitted power comprises transmitted power adjusted value P SRS_OFFSET, c(m), in the said configuration information, to P SRS_OFFSET, c(m) different values are set; Perhaps, said configuration information comprises P SRS_OFFSET, c(m) and the expression P SRS_OFFSET, c(m) the new argument P of side-play amount OffsetAnd P OffsetValue, in the said configuration information to P SRS_OFFSET, c(m) value that is provided with is one; Wherein, when m=0 or m=1, m=0, P SRS_OFFSET, c(m) the transmitted power adjusted value of the SRS of indication cycle, m=1, P SRS_OFFSET, c(m) the transmitted power adjusted value of expression SRS aperiodic.
Therefore, the embodiment of the invention can be expanded the relevant parameter in the setting formula of present calculating SRS transmitted power and obtain a plurality of performance numbers, such as to P SRS_OFFSET, c(m) expand, also can introduce new argument and be used to obtain a plurality of performance numbers, such as indication new argument and P SRS_OFFSET, c(m) difference substitution formula.
Preferably; Be that the corresponding SRS transmission of each SRS transmitted power configuration is during the cycle; Pairing a plurality of SRS transmission cycle is the multiple relation; Its value can be reused the allocation list that is used to dispose the SRS cycle in the present system, if the initial subframe of transmission in then a plurality of SRS transmission cycle is identical, the sub-frame resources that then a plurality of SRS transmitted powers take is the relation of subclass.
Preferably, when the SRS that is each SRS transmitted power configuration correspondence sent resource occupation information, SRS sent the combination that resource occupation information comprises following arbitrary or any a plurality of information that SRS takies: subframe position information, frequency domain resource positional information, circular shift information, port information; Send the subframe skew like SRS; The configuration of SRS frequency hopping, SRS bandwidth, information such as SRS cyclic shift; For every category information; Can be that each SRS transmitted power is disposed separately, also can adopt public configuration, promptly adopt identical configuration.
Preferably, a plurality of SRS transmitted power configurations can have certain priority orders, each SRS transmitted power configuration of base station and user equipment (UE) agreement, and the priority big more such as performance number is high more.
For the situation of aperiodicity transmitting SRS, the method that has two kinds of indication SRS to send.
Method 1
The configuration information that is used for confirming at least two SRS transmitted powers of UE is confirmed in the base station, and the configuration information of confirming is indicated to UE; For sending resource occupation information or triggering sub-frame resources information and indication, the corresponding SRS of each SRS transmitted power configuration gives UE, so that UE adopts different SRS transmitted powers to send SRS on different resources.These indications can be to indicate simultaneously, also can be to indicate respectively.
Preferably, above-mentioned indication can send to UE through high-level signaling.
Preferably, in the embodiment of the invention, be used for confirming the configuration information of at least two SRS transmitted powers, specifically comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power, wherein to the different values of same relative parameters setting; Perhaps specifically comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power, and the new argument and the new argument value that are used for confirming the new value of relevant parameter that increase newly, in the said configuration information, to value of same relative parameters setting.
Preferably, the relevant parameter in the setting formula of calculating SRS transmitted power comprises P SRS_OFFSET, c(m), in the said configuration information, to P SRS_OFFSET, c(m) different values are set; Perhaps, said configuration information comprises P SRS_OFFSET, c(m) and the expression P SRS_OFFSET, c(m) the new argument P of side-play amount OffsetAnd P OffsetValue, in the said configuration information to PS RS_OFFSET, c(m) value that is provided with is one; Wherein, when m=0 or m=1, m=0, P SRS_OFFSET, c(m) the transmitted power adjusted value of the SRS of indication cycle, m=1, P SRS_OFFSET, c(m) the transmitted power adjusted value of expression SRS aperiodic.
Therefore, the embodiment of the invention can be expanded the relevant parameter in the setting formula of present calculating SRS transmitted power and obtain a plurality of performance numbers, such as to P SRS_OFFSET, c(m) expand, also can introduce new argument and be used to obtain a plurality of performance numbers, such as indication new argument and P SRS_OFFSET, c(m) difference substitution formula.
Preferably, the SRS corresponding for each SRS transmitted power configuration sends resource occupation information, comprises the combination of following arbitrary or any a plurality of information that SRS takies: subframe position information, frequency domain resource positional information, circular shift information, port information; Send the subframe skew like SRS, the configuration of SRS frequency hopping, SRS bandwidth; Information such as SRS cyclic shift for every category information, can be that each SRS transmitted power is disposed separately; Also can adopt public configuration, promptly adopt identical configuration.
Preferably, target SRS transmitted power is confirmed in the base station in above-mentioned at least two different SRS transmitted powers, and the SRS corresponding in target SRS transmitted power triggers the triggering of carrying out SRS aperiodic on the sub-frame resources; Perhaps, trigger UE and send the transmission of carrying out SRS aperiodic on the resource at the corresponding SRS of target SRS transmitted power.
Preferably, a plurality of SRS transmitted power configurations can have certain priority orders, each SRS transmitted power configuration corresponding priorities of base station and UE agreement, and the priority big more such as performance number is high more.
Method 2
The configuration information that is used for confirming at least two SRS transmitted powers of UE is confirmed in the base station, and the configuration information of confirming is indicated to UE; Indicate the configuration information of the SRS transmitted power of UE employing through the PDCCH signaling.These indications can be to indicate simultaneously, also can be to indicate respectively
Preferably, the configuration information of confirming is indicated to UE through high-level signaling.
Preferably, in the embodiment of the invention, be used for confirming the configuration information of at least two SRS transmitted powers, specifically comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power, wherein to the different values of same relative parameters setting; Perhaps specifically comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power, and the new argument and the new argument value that are used for confirming the new value of relevant parameter that increase newly, in the said configuration information, to value of same relative parameters setting.
Preferably, the relevant parameter in the setting formula of calculating SRS transmitted power comprises P SRS_OFFSET, c(m), in the said configuration information, to P SRS_OFFSET, c(m) different values are set; Perhaps, said configuration information comprises P SRS_OFFSET, c(m) and the expression P SRS_OFFSET, c(m) the new argument P of side-play amount OffsetAnd P OffsetValue, in the said configuration information to P SRS_OFFSET, c(m) value that is provided with is one; Wherein, when m=0 or m=1, m=0, P SRS_OFFSET, c(m) the transmitted power adjusted value of the SRS of indication cycle, m=1, P SRS_OFFSET, c(m) the transmitted power adjusted value of expression SRS aperiodic.
Therefore, the embodiment of the invention can be expanded the relevant parameter in the setting formula of present calculating SRS transmitted power and obtain a plurality of performance numbers, such as to P SRS_OFFSET, c(m) expand, also can introduce new argument and be used to obtain a plurality of performance numbers, such as indication new argument and P SRS_OFFSET, c(m) difference substitution formula.
Preferably; The index that the configuration information of different SRS transmitted powers is corresponding different; The concrete corresponding index (index of correspondence in the high level configuration) of configuration information that passes through the SRS transmitted power of indication UE employing, the configuration information of the SRS transmitted power of indication UE employing.
Preferably, utilize and trigger the PDCCH signaling that SRS sends aperiodic, the configuration information of the SRS transmitted power that indication UE adopts; DCI (the Downlink Control Information that perhaps belongs to through the PDCCH signaling that triggers the SRS transmission aperiodic; Downlink Control Information) in; Other signalings except that the PDCCH signaling that triggers the SRS transmission aperiodic, the configuration information of the SRS transmitted power that indication UE adopts.
The method that the embodiment of the invention also provides a kind of user equipment (UE) to send SRS, as shown in Figure 3, comprise the steps:
Step 301; Receive the configuration information that is used for confirming at least two SRS transmitted powers of network equipment indication; Said at least two SRS transmitted powers, the transmitted power of using when being used for the measurement of various objectives, preferably; The transmitted power that comprises the SRS use that is used for the up channel measurement reaches the transmitted power that is used for the SRS use of down channel measurement according to the channel heterogeneite;
Step 302 is confirmed at least two SRS transmitted powers according to said configuration information, adopts different SRS transmitted powers to send SRS according to the indication of network equipment at different resource.
The method that UE provided by the invention sends SRS is suitable for being applied in the CoMP system, and then above-mentioned network equipment is specially the base station of communicating by letter with UE.
Provide respectively below under periodic transfer property transmitting SRS and the aperiodicity transmitting SRS situation, UE of the present invention sends the preferred implementation of SRS.
For periodicity SRS, UE confirms at least two SRS transmitted powers according to the configuration information that indicate the base station, and what obtain the base station indication is the SRS transmission cycle of the correspondence of each SRS transmitted power configuration; Arrive corresponding SRS transmission during the cycle, send on the resource occupation information, send SRS with corresponding SRS transmitted power at public SRS; It is prior art that UE obtains public SRS transmission resource mode;,,, promptly can send different capacity SRS to modes such as UE like configuration in the same position of subframe though adopting identical transmission resource to send; But because therefore the corresponding transmission cycle difference of different SRS transmitted powers can send in different subframes.Preferably, if the transmission cycle causes sending at synchronization, then each SRS transmitted power corresponding priorities of basis and base station agreement selects the highest SRS transmitted power of priority to send SRS.
Perhaps; What UE obtained the base station indication is the SRS transmission resource occupation information of the correspondence of each SRS transmitted power configuration; Taking corresponding SRS transmission resource, send SRS with corresponding SRS transmitted power, particularly; The resource that can be taken by periodicity for the meeting of each SRS transmitted power configuration correspondence is so that UE periodically sends SRS.
Perhaps, UE obtains the cycle of sending of the SRS for each SRS transmitted power configuration of base station indication and sends resource occupation information with SRS, arrives corresponding transmission during the cycle and/or take corresponding SRS and send resource, with corresponding SRS transmitted power transmission SRS.If at the SRS of a plurality of SRS power of synchronization appearance transmission, then basis disposes corresponding priorities with each SRS transmitted power of base station agreement, selects the highest SRS transmitted power transmission SRS of priority.
Preferably; If comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power in the said configuration information; The different values of same relative parameters setting then through with the said setting formula of each value difference substitution, obtain at least two SRS transmitted powers.
If comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power in the said configuration information; And the new argument and the new argument value that are used for confirming the new value of relevant parameter that increase newly; Configuration information is to value of same relative parameters setting; Then with the value of relevant parameter in the configuration information, the new value of utilizing the relevant parameter that new argument confirms respectively substitution set formula, obtain at least two SRS transmitted powers.
As with P SRS_OFFSET, c(m) be provided with different values respectively substitution set formula, or with a P of base station indication SRS_OFFSET, c(m) value, and P SRS_OFFSET, c(m) value and new argument are carried out the new value that obtains after the corresponding computing, and substitution is set formula and obtained a plurality of SRS transmitted powers respectively.
Preferably, if the SRS that UE obtains sends resource occupation information, then SRS sends the combination that resource occupation information comprises following arbitrary or any a plurality of information that SRS takies: subframe position information, frequency domain resource positional information, circular shift information, port information.Send the subframe skew like SRS, the SRS bandwidth, the configuration of SRS frequency hopping, information such as SRS cyclic shift, if the not configuration of some information, then this information adopts common configuration (dispensing UE in advance).
For SRS aperiodic, UE sends SRS has two kinds of methods.
Method 1
UE confirms at least two SRS transmitted powers according to the configuration information of base station indication; What obtain the UE indication is the SRS transmission resource occupation information and/or the triggering sub-frame resources information of the correspondence of each SRS transmitted power configuration, confirms that the corresponding transmission resource of each SRS transmitted power perhaps triggers sub-frame resources; For the situation of confirming to trigger sub-frame resources; After receiving SRS triggering aperiodic signaling; Utilize SRS triggering aperiodic signaling place to trigger the corresponding SRS transmitted power of sub-frame resources and send SRS, specifically can confirm that according to setting rule corresponding SRS sends resource according to the triggering sub-frame resources; Perhaps, for confirming that SRS sends the situation of resource, after receiving SRS triggering aperiodic signaling, utilize the shared corresponding SRS transmitted power of transmission resource of SRS aperiodic to send SRS.
Preferably, if synchronization when at least two SRS transmitted powers should be arranged, further comprises: according to the network equipment agreement for each SRS transmitted power configuration corresponding priorities, select the highest SRS transmitted power of priority to send SRS.
Preferably; If comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power in the said configuration information; The different values of same relative parameters setting then through with the said setting formula of each value difference substitution, obtain at least two SRS transmitted powers.
If comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power in the said configuration information; And the new argument and the new argument value that are used for confirming the new value of relevant parameter that increase newly; Configuration information is to value of same relative parameters setting; Then with the value of relevant parameter in the configuration information, the new value of utilizing the relevant parameter that new argument confirms respectively substitution set formula, obtain at least two SRS transmitted powers.
As with P SRS_OFFSET, c(m) be provided with different values respectively substitution set formula, or with a P of base station indication SRS_OFFSET, c(m) value, and P SRS_OFFSET, c(m) value and new argument are carried out the new value that obtains after the corresponding computing, and substitution is set formula and obtained a plurality of SRS transmitted powers respectively.
Preferably, if the SRS that UE obtains sends resource occupation information, then SRS sends the combination that resource occupation information comprises following arbitrary or any a plurality of information that SRS takies: subframe position information, frequency domain resource positional information, circular shift information, port information.Send the subframe skew like SRS, the SRS bandwidth, the configuration of SRS frequency hopping, information such as SRS cyclic shift, if the not configuration of some information, then this information adopts common configuration (dispensing UE in advance).
Method 2
UE confirms at least two SRS transmitted powers according to the configuration information of base station indication, according to the configuration information of base station through the SRS transmitted power of PDCCH signaling indication, confirms the SRS transmitted power of indication; After receiving SRS triggering aperiodic signaling, adopt the SRS transmitted power of indication to send SRS.
Preferably; If comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power in the said configuration information; The different values of same relative parameters setting then through with the said setting formula of each value difference substitution, obtain at least two SRS transmitted powers.
If comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power in the said configuration information; And the new argument and the new argument value that are used for confirming the new value of relevant parameter that increase newly; Configuration information is to value of same relative parameters setting; Then with the value of relevant parameter in the configuration information, the new value of utilizing the relevant parameter that new argument confirms respectively substitution set formula, obtain at least two SRS transmitted powers.
As with P SRS_OFFSET, c(m) be provided with different values respectively substitution set formula, or with a P of base station indication SRS_OFFSET, c(m) value, and P SRS_OFFSET, c(m) value and new argument are carried out the new value that obtains after the corresponding computing, and substitution is set formula and obtained a plurality of SRS transmitted powers respectively.
Not needing the base station in the present embodiment is that UE configuration SRS sends resource information, and the SRS of different transmitted powers uses public transmission resource to send.Transmission opportunity is by base station triggers, and the base station can notify UE to use which transmitted power to send.
Preferably; Above-mentioned configuration information is through the high-level signaling configuration; The index that the configuration information of different SRS transmitted powers is corresponding different; The configuration information of concrete SRS transmitted power through the base station indication is confirmed the configuration information of the SRS transmitted power of base station indication, thereby is confirmed to adopt which SRS transmitted power to send at the corresponding index of high level configuration.
Preferably, trigger the PDCCH signaling that SRS sends aperiodic, obtain the configuration information of the SRS transmitted power of base station indication UE employing through receiving; Perhaps,, obtain the configuration information of the SRS transmitted power of base station indication UE employing except that triggering other signalings of PDCCH signaling that SRS sends aperiodic through among the Downlink Control Information DCI that triggers the PDCCH signaling place that SRS sends aperiodic.
Provide the above-mentioned network equipment indication of the present invention below and send the method for SRS and the method that UE sends SRS.
Embodiment 1
1) base station is UE configuration SRS power offset values P through high-level signaling SRS_OFFSET, c(0) and another new argument-deviant P Offset, UE is based on P SRS_OFFSET, c(0) and PS RS_OFFSET, c(0)+P OffsetAccording to the SRS rating formula, obtain two cycle SRS transmitted power P0 and P1 respectively, be respectively applied for up channel measurement and down channel and measure.
2) base station is that two transmitted power P0 and P1 dispose a transmission cycle respectively, and agreement is confirmed priority according to the performance number size.The transmission cycle corresponding such as P0 is 5ms, and the transmission cycle that P1 is corresponding is 20ms.P1 is greater than P0, so the priority of P1 is higher.
3) base station is that UE configuration SRS sends resource occupation information, such as the SRS bandwidth, and the skew of SRS subframe, the configuration of SRS frequency hopping, SRS port number and SRS cyclic shift etc., configuration all is identical to these parameters with P1 for these two power P 0.
4) UE is according to the configuration of base station, with the transmission cycle of 5ms and the transmitted power transmission period 1 SRS of P0, with the transmission cycle of 20ms and transmitted power transmission SRS second round of P1.Concrete SRS sends resource and is obtained by the transmission of the SRS in step 3) resource occupation information.Because the original position of these two cycle SRS is identical, second round, the sub-frame resources of SRS was the subclass of period 1 SRS sub-frame resources, and all should according to P1 send SRS on the sub-frame resources according to the priority coincidence this moment.So the terminal is actually the cycle transmission cycle SRS with 5ms, the power of wherein every 20ms cycle according to P1 sends, and other cycle SRS constantly send with the power of P0.
Embodiment 2
1) base station is UE configuration SRS power offset values P through high-level signaling SRS_OFFSET, c(1) and another new argument-deviant P Offset, UE is based on P SRS_OFFSET, c(1) and P SRS_OFFSET, c(1)+P OffsetAccording to the SRS rating formula obtain two aperiodic SRS transmitted power P0 and P1, be respectively applied for up channel and measure and the down channel measurement.The priority that two transmitted power P0 of base station and UE agreement and P1 dispose, promptly the higher priority of transmitted power is higher.
2) base station is the corresponding SRS transmission resource information of each SRS transmitted power configuration of UE, the sub-frame resources configuration cycle difference that different SRS power is corresponding.The sub-frame resources configuration cycle corresponding such as P0 is 10ms (being that every 10ms has a sub-frame resource can be used for the transmission of this type SRS aperiodic), and the configuration cycle of the sub-frame resources that P1 is corresponding is 20ms.
3) base station is other SRS configuration parameters of UE configuration, mainly is that configuration SRS sends resource occupation information, such as the SRS bandwidth; The initial subframe of SRS resource; The configuration of SRS frequency hopping, SRS port number and SRS cyclic shift etc., these parameters all are identical for these two power configuration.
4) UE is according to the configuration of base station; After SRS aperiodic that in receiving certain DCI, comprises triggers signaling; SRS triggers the used SRS transmission resource of signaling decision according to aperiodic; If when the aperiodic of triggering, SRS did not send sending on the corresponding SRS transmission sub-frame resources of P0, on respective resources, transmit SRS aperiodic on the corresponding SRS transmission sub-frame resources of P1 with the transmitted power of P0; If when the aperiodic of triggering, SRS transmitted, on respective resources, transmit SRS aperiodic on the corresponding SRS transmission sub-frame resources of P1 with the transmitted power of P1.If the SRS that P1 and P0 are corresponding sends sub-frame resources and overlaps, then use the transmitted power of the high P1 of priority on respective resources, to transmit SRS aperiodic.
Embodiment 3
1) base station is UE configuration SRS power offset values P through high-level signaling SRS_OFFSET, c(1) and another new argument-deviant P Offset, UE is based on P SRS_OFFSET, c(1) and P SRS_OFFSET, c(1)+P OffsetAccording to the SRS rating formula, obtain two aperiodic SRS transmitted power P0 and P1, be respectively applied for up channel and measure and the down channel measurement.
2) SRS transmission aperiodic is triggered through some bits of certain DCI among the PDCCH in the base station; And the index of the SRS transmitted power configuration of indicating UE simultaneously and adopted with these bits, this index have indicated target SRS transmitted power to be configured in the position in two SRS transmitted powers configurations of high-rise indication.
3) other SRS parameter configuration of base station indication UE mainly is that SRS sends resource occupation information, such as the SRS bandwidth, and the initial subframe of SRS resource, the configuration of SRS frequency hopping, SRS port number and SRS cyclic shift etc., these parameters all are identical for these two power configuration.
4) after UE receives SRS triggering aperiodic that comprises among certain DCI; According to the index that triggers the SRS transmitted power that comprises in the signaling; From two SRS transmitted powers of high-level signaling configuration, find the corresponding transmitted power of index; As the transmitted power of SRS aperiodic, and carry out the transmission of SRS aperiodic according to the SRS parameter configuration of base station indication.Such as, the transmitted power index that comprises in the trigger message is 1, then the transmitted power of P1 as SRS aperiodic adopted in indication.
Embodiment 4
1) base station is UE configuration SRS power offset values P through high-level signaling SRS_OFFSET, c(1) and another new argument-deviant P Offset, UE is based on P SRS_OFFSET, c(1) and P SRS_OFFSET, c(1)+P OffsetAccording to the SRS rating formula obtain two aperiodic SRS transmitted power P0 and P1, be respectively applied for up channel and measure and the down channel measurement.The priority that two transmitted power P0 of base station and UE agreement and P1 dispose, promptly the higher priority of transmitted power is higher.
2) base station is the corresponding triggering sub-frame information of each SRS transmitted power configuration of UE, and the triggering sub-frame configuration that different SRS power is corresponding is different.The triggering sub-frame information corresponding such as P0 is the odd number subframe, and the triggering sub-frame information that P1 is corresponding is the even number subframe.
3) base station is other SRS configuration parameters of UE configuration, mainly is that configuration SRS sends resource occupation information, such as the SRS bandwidth; The initial subframe of SRS resource; The configuration of SRS frequency hopping, SRS port number and SRS cyclic shift etc., these parameters all are identical for these two power configuration.
4) UE is according to the configuration of base station; After SRS aperiodic that in receiving certain DCI, comprises triggers signaling; If judge that aperiodic, SRS triggered signaling on the corresponding triggering sub-frame resources of P0 and not on the corresponding triggering sub-frame resources of P1 the time, on respective resources, transmit SRS aperiodic with the transmitted power of P0; If SRS aperiodic triggers signaling on the corresponding triggering sub-frame resources of P1 the time, on respective resources, transmit SRS aperiodic with the transmitted power of P1.
Based on same inventive concept; A kind of network equipment and user equipment (UE) also are provided in the embodiment of the invention; Because the principle that these equipment are dealt with problems is similar with the method for a kind of method of the SRS of indication transmission, a kind of SRS of transmission; Therefore the enforcement of these equipment can repeat part and repeat no more referring to the enforcement of method.
Network equipment as shown in Figure 4, that the embodiment of the invention provides comprises:
Power configuration unit 401 is used for confirming that the configuration information that is used for confirming at least two SRS transmitted powers of UE, said at least two SRS transmitted powers are the transmitted power of using when being used for the measurement of various objectives;
Power configuration indicating member 402 is used for the configuration information of confirming is indicated to said UE, so that said UE confirms at least two SRS transmitted powers according to indication, and indication UE adopts different SRS transmitted powers to send SRS on different resources.
The embodiment of the invention also provides a kind of user equipment (UE), and is as shown in Figure 5, comprising:
Power configuration acquiring unit 501 is used to receive the configuration information that is used for confirming at least two SRS transmitted powers that network equipment is indicated;
SRS transmitting element 502 is used for confirming at least two SRS transmitted powers according to said configuration information, and according to the indication of network equipment, on different resource, adopts different SRS transmitted powers to send SRS.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic inventive concept could of cicada, then can make other change and modification to these embodiment.So accompanying claims is intended to be interpreted as all changes and the modification that comprises preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.

Claims (40)

1. the method that network equipment indication detection reference signal SRS sends is characterized in that, comprising:
Confirm the configuration information that is used for confirming at least two SRS transmitted powers of user equipment (UE), said at least two SRS transmitted powers are the transmitted power of using when being used for the measurement of various objectives;
The configuration information of confirming is indicated to said UE, so that said UE confirms at least two SRS transmitted powers according to indication, and indication UE adopts different SRS transmitted powers to send SRS on different resources.
2. the method for claim 1 is characterized in that, said at least two SRS transmitted powers comprise being used for the transmitted power that SRS that up channel measures uses, and is used for the transmitted power that SRS that down channel measures uses according to the channel heterogeneite.
3. the method for claim 1 is characterized in that, the said configuration information that is used for confirming at least two SRS transmitted powers is specifically through high-level signaling notice UE.
4. the method for claim 1; It is characterized in that; The said configuration information that is used for confirming at least two SRS transmitted powers specifically comprises relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power, wherein to the different values of same relative parameters setting; Perhaps
Specifically comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power, and the new argument and the new argument value that are used for confirming the new value of relevant parameter that increase newly, in the said configuration information, to value of same relative parameters setting.
5. method as claimed in claim 4 is characterized in that, the relevant parameter in the setting formula of calculating SRS transmitted power comprises transmitted power adjusted value P SRS_OFFSET, c(m), in the said configuration information, to P SRS_OFFSET, c(m) different values are set; Perhaps
Said configuration information comprises P SRS_OFFSET, c(m) and the expression P SRS_OFFSET, c(m) the new argument P of side-play amount OffsetAnd P OffsetValue, in the said configuration information to P SRS_OFFSET, c(m) value that is provided with is one.
6. the method for claim 1 is characterized in that, if UE is configured to periodically send SRS, also further comprises:
For sending cycle and/or SRS transmission resource occupation information and indication, the corresponding SRS of each SRS transmitted power configuration gives UE;
If when UE is configured to aperiodicity transmission SRS, also further comprise:
For sending resource occupation information or triggering sub-frame resources information and indication, the corresponding SRS of each SRS transmitted power configuration gives UE.
7. method as claimed in claim 6 is characterized in that, SRS sends the combination that resource occupation information comprises following arbitrary or any a plurality of information:
Subframe position information, frequency domain resource positional information, circular shift information, port information.
8. method as claimed in claim 6 is characterized in that, when being configured to aperiodicity transmission SRS as if UE, also further comprises:
Confirm target SRS transmitted power, on the corresponding triggering sub-frame resources of target SRS transmitted power, carry out the triggering of SRS aperiodic; Perhaps
Trigger UE and send the transmission of carrying out SRS aperiodic on the resource at the corresponding SRS of target SRS transmitted power.
9. the method for claim 1 is characterized in that, further comprises:
With each SRS transmitted power corresponding priorities of user equipment (UE) agreement.
10. the method for claim 1 is characterized in that, when being configured to aperiodicity transmission SRS as if UE, also further comprises:
Indicate the configuration information of the SRS transmitted power of UE employing through the PDCCH signaling.
11. method as claimed in claim 10; It is characterized in that; The index that the configuration information of different SRS transmitted powers is corresponding different, the concrete corresponding index of configuration information that passes through the SRS transmitted power of indication UE employing, the configuration information of the SRS transmitted power of indication UE employing.
12. method as claimed in claim 10 is characterized in that, further comprises:
Utilize and trigger the PDCCH signaling that SRS sends aperiodic, the configuration information of the SRS transmitted power that indication UE adopts; Perhaps
In the Downlink Control Information DCI that triggers the PDCCH signaling place that SRS sends aperiodic, except that triggering other signalings of PDCCH signaling that SRS sends aperiodic, the configuration information of the SRS transmitted power of indication UE employing.
13. a user equipment (UE) sends the method for SRS, it is characterized in that, comprising:
Receive the configuration information that is used for confirming at least two SRS transmitted powers of network equipment indication;
Confirm at least two SRS transmitted powers according to said configuration information, and on different resource, adopt different SRS transmitted powers to send SRS according to the indication of network equipment.
14. method as claimed in claim 13 is characterized in that, specifically receives the configuration information that is used for confirming at least two SRS transmitted powers of network equipment indication through high-level signaling.
15. method as claimed in claim 13 is characterized in that, confirms at least two SRS transmitted powers according to said configuration information, specifically comprises:
If comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power in the said configuration information, the different values of same relative parameters setting then through with the said setting formula of each value difference substitution, obtain at least two SRS transmitted powers;
If comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power in the said configuration information; And the new argument and the new argument value that are used for confirming the new value of relevant parameter that increase newly; Configuration information is to value of same relative parameters setting; Then with the value of relevant parameter in the configuration information, the new value of utilizing the relevant parameter that new argument confirms respectively substitution set formula, obtain at least two SRS transmitted powers.
16. method as claimed in claim 13 is characterized in that, when being configured to periodically send SRS as if UE, also further comprises:
What obtain the network equipment indication is the SRS transmission cycle of the correspondence of each SRS transmitted power configuration, arrives corresponding SRS transmission during the cycle, sends on the resource occupation information at public SRS, uses corresponding SRS transmitted power to send SRS; Perhaps
What obtain the network equipment indication is the SRS transmission resource occupation information of the correspondence of each SRS transmitted power configuration, when the SRS that takies correspondence sends resource, uses corresponding SRS transmitted power transmission SRS; Perhaps
The SRS for each SRS transmitted power configuration that obtains the network equipment indication sends cycle and SRS transmission resource occupation information, arrives the corresponding transmission cycle and/or takies corresponding SRS when sending resource, uses corresponding SRS transmitted power to send SRS;
If when UE is configured to aperiodicity transmission SRS, also further comprise:
What obtain the network equipment indication is the SRS transmission resource occupation information or the triggering sub-frame resources information of the correspondence of each SRS transmitted power configuration, confirms that the corresponding transmission resource of each SRS transmitted power perhaps triggers sub-frame resources;
After receiving SRS triggering aperiodic signaling, utilize the corresponding SRS transmitted power of triggering sub-frame resources at SRS triggering aperiodic signaling place to send SRS; Perhaps,
After receiving SRS triggering aperiodic signaling, utilize the shared corresponding SRS transmitted power of transmission resource of SRS aperiodic to send SRS.
17. method as claimed in claim 16 is characterized in that, the SRS that obtains sends the combination that resource occupation information comprises following arbitrary or any a plurality of information:
Subframe position information, frequency domain resource positional information, circular shift information, port information.
18. method as claimed in claim 16 is characterized in that, if on the same resource when at least two SRS transmitted powers should be arranged, further comprise:
Each SRS transmitted power according to the network equipment agreement disposes corresponding priorities, selects the highest SRS transmitted power of priority to send SRS.
19. method as claimed in claim 13 is characterized in that, when being configured to aperiodicity transmission SRS as if UE, also further comprises:
According to the configuration information of network equipment, confirm the SRS transmitted power of indication through the SRS transmitted power that is adopted of PDCCH signaling indication;
After receiving SRS triggering aperiodic signaling, adopt the SRS transmitted power of indication to send SRS.
20. method as claimed in claim 19; It is characterized in that; The index that the configuration information of different SRS transmitted powers is corresponding different, the configuration information of the SRS transmitted power of network equipment indication confirmed in the concrete corresponding index of configuration information of the SRS transmitted power through the network equipment indication.
21. method as claimed in claim 19 is characterized in that,
Trigger the PDCCH signaling that SRS sends aperiodic through receiving, obtain the configuration information of the SRS transmitted power of network equipment indication UE employing; Perhaps
In the Downlink Control Information DCI that triggers the PDCCH signaling place that SRS sends aperiodic,, obtain the configuration information of the SRS transmitted power of network equipment indication UE employing except that triggering other signalings of PDCCH signaling that SRS sends aperiodic.
22. a network equipment is characterized in that, comprising:
The power configuration unit is used for confirming that the configuration information that is used for confirming at least two SRS transmitted powers of user equipment (UE), said at least two SRS transmitted powers are the transmitted power of using when being used for the measurement of various objectives;
The power configuration indicating member is used for the configuration information of confirming is indicated to said UE, so that said UE confirms at least two SRS transmitted powers according to indication, and indication UE adopts different SRS transmitted powers to send SRS on different resources.
23. equipment as claimed in claim 22 is characterized in that, the power configuration indicating member is specifically notified UE through high-level signaling with the said configuration information that is used for definite at least two SRS transmitted powers.
24. equipment as claimed in claim 22; It is characterized in that; The configuration information that is used for confirming at least two SRS transmitted powers that the unit uses is confirmed in said configuration; Specifically comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power, wherein to the different values of same relative parameters setting; Perhaps
Specifically comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power, and the new argument and the new argument value that are used for confirming the new value of relevant parameter that increase newly, in the said configuration information, to value of same relative parameters setting.
25. equipment as claimed in claim 22 is characterized in that, also further comprises:
First resource configuration unit is used for when UE is configured to periodically send SRS, gives UE for the corresponding SRS of each SRS transmitted power configuration sends cycle and/or SRS transmission resource occupation information and indication;
Second resource configuration unit is used for when UE is configured to aperiodicity transmission SRS, disposes the SRS transmission resource occupation information or the triggering sub-frame resources information of correspondence for each SRS transmitted power and also indicates to UE.
26. equipment as claimed in claim 25; It is characterized in that the SRS of first resource configuration unit or the configuration of second resource configuration unit sends the combination that resource occupation information comprises following arbitrary or any a plurality of information: subframe position information, frequency domain resource positional information, circular shift information, port information.
27. equipment as claimed in claim 25 is characterized in that, also comprises:
Aperiodic, trigger element was used for when UE is configured to aperiodicity transmission SRS, confirming target SRS transmitted power, on the corresponding triggering sub-frame resources of target SRS transmitted power, carried out the triggering of SRS aperiodic; Perhaps trigger UE and send the transmission of carrying out SRS aperiodic on the resource at the corresponding SRS of target SRS transmitted power.
28. equipment as claimed in claim 22 is characterized in that, also comprises:
The about cell of priority is with each SRS transmitted power corresponding priorities of user equipment (UE) agreement.
29. equipment as claimed in claim 22 is characterized in that, also comprises:
Use the power indicating member, be used for when UE is configured to aperiodicity transmission SRS, indicating the configuration information of the SRS transmitted power of UE employing through the PDCCH signaling.
30. equipment as claimed in claim 29; It is characterized in that; The index that the configuration information of different SRS transmitted powers is corresponding different; Use the power indicating member, the concrete corresponding index of configuration information that passes through the SRS transmitted power of indication UE employing, the configuration information of the SRS transmitted power of indication UE employing.
31. equipment as claimed in claim 29 is characterized in that, uses the power indicating member, specifically utilizes and triggers the PDCCH signaling that SRS sends aperiodic, the configuration information of the SRS transmitted power that indication UE adopts; Perhaps through among the Downlink Control Information DCI that triggers the PDCCH signaling place that SRS sends aperiodic, except that triggering other signalings of PDCCH signaling that SRS sends aperiodic, the configuration information of the SRS transmitted power of indication UE employing.
32. a user equipment (UE) is characterized in that, comprising:
The power configuration acquiring unit is used to receive the configuration information that is used for confirming at least two SRS transmitted powers that network equipment is indicated;
The SRS transmitting element is used for confirming at least two SRS transmitted powers according to said configuration information, and according to the indication of network equipment, on different resource, adopts different SRS transmitted powers to send SRS.
33. UE as claimed in claim 32 is characterized in that, the power configuration acquiring unit specifically receives the configuration information that is used for confirming at least two SRS transmitted powers of network equipment indication through high-level signaling.
34. UE as claimed in claim 32 is characterized in that, the SRS transmitting element is confirmed at least two SRS transmitted powers according to said configuration information, specifically comprises:
If comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power in the said configuration information, the different values of same relative parameters setting then through with the said setting formula of each value difference substitution, obtain at least two SRS transmitted powers;
If comprise relevant parameter and value thereof in the setting formula that calculates the SRS transmitted power in the said configuration information; And the new argument and the new argument value that are used for confirming the new value of relevant parameter that increase newly; Configuration information is to value of same relative parameters setting; Then with the value of relevant parameter in the configuration information, the new value of utilizing the relevant parameter that new argument confirms respectively substitution set formula, obtain at least two SRS transmitted powers.
35. UE as claimed in claim 32 is characterized in that,
The SRS transmitting element; Specifically be used for when UE is configured to periodically send SRS; What obtain the network equipment indication is the SRS transmission cycle of the correspondence of each SRS transmitted power configuration; Arrive corresponding SRS transmission during the cycle, send on the resource occupation information, send SRS with corresponding SRS transmitted power at public SRS; Perhaps
What obtain the network equipment indication is the SRS transmission resource occupation information of the correspondence of each SRS transmitted power configuration, when the SRS that takies correspondence sends resource, uses corresponding SRS transmitted power transmission SRS; Perhaps
Obtain the cycle of sending of the SRS for each SRS transmitted power configuration of network equipment indication and send resource occupation information, arrive corresponding transmission during the cycle and/or when taking corresponding SRS and sending resource, with corresponding SRS transmitted power transmission SRS with SRS;
The SRS transmitting element; Specifically be used for when UE is configured to aperiodicity transmission SRS; What obtain the network equipment indication is the SRS transmission resource occupation information or the triggering sub-frame resources information of the correspondence of each SRS transmitted power configuration, confirms that the corresponding transmission resource of each SRS transmitted power perhaps triggers sub-frame resources;
After receiving SRS triggering aperiodic signaling, utilize the corresponding SRS transmitted power of triggering sub-frame resources at SRS triggering aperiodic signaling place to send SRS aperiodic; Perhaps,
After receiving SRS triggering aperiodic signaling, utilize the shared corresponding SRS transmitted power of transmission resource of SRS aperiodic to send SRS.
36. UE as claimed in claim 35 is characterized in that, the SRS that the SRS transmitting element obtains sends the combination that resource occupation information comprises following arbitrary or any a plurality of information:
Subframe position information, frequency domain resource positional information, circular shift information, port information.
37. UE as claimed in claim 32; It is characterized in that; The SRS transmitting element; Specifically be used on same resource when at least two SRS transmitted powers should be arranged, according to the network equipment agreement be each SRS transmitted power configuration corresponding priorities, select the highest SRS transmitted power transmission SRS of priority.
38. UE as claimed in claim 32; It is characterized in that the SRS transmitting element is when UE is configured to aperiodicity transmission SRS; According to the configuration information of network equipment, confirm the SRS transmitted power of indication through the SRS transmitted power that is adopted of PDCCH signaling indication; After receiving SRS triggering aperiodic signaling, adopt the SRS transmitted power of indication to send SRS.
39. UE as claimed in claim 38; It is characterized in that; The index that the configuration information of different SRS transmitted powers is corresponding different; The SRS transmitting element specifically passes through the corresponding index of configuration information of the SRS transmitted power of network equipment indication, confirms the configuration information of the SRS transmitted power of network equipment indication.
40. UE as claimed in claim 38 is characterized in that, the SRS transmitting element specifically triggers the PDCCH signaling that SRS sends aperiodic through receiving, and obtains the configuration information of the SRS transmitted power of network equipment indication UE employing; Perhaps
In the Downlink Control Information DCI that triggers the PDCCH signaling place that SRS sends aperiodic,, obtain the configuration information of the SRS transmitted power of network equipment indication UE employing except that triggering other signalings of PDCCH signaling that SRS sends aperiodic.
CN201110402042.4A 2011-12-06 2011-12-06 Method and device for sending SRS (Sounding Reference Symbol) and indicating to send SRS Active CN102427608B (en)

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CN103391607A (en) * 2012-05-11 2013-11-13 华为技术有限公司 Power control method, device and system for sounding reference signal
CN104767586A (en) * 2014-01-02 2015-07-08 ***通信集团公司 A method for controlling transmission of reference signal used for detection and base station apparatus
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