CN102469613B - Send the methods, devices and systems of measuring reference signals SRS - Google Patents
Send the methods, devices and systems of measuring reference signals SRS Download PDFInfo
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- CN102469613B CN102469613B CN201010550573.3A CN201010550573A CN102469613B CN 102469613 B CN102469613 B CN 102469613B CN 201010550573 A CN201010550573 A CN 201010550573A CN 102469613 B CN102469613 B CN 102469613B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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Abstract
The embodiment of the present invention provides a kind of methods, devices and systems sending measuring reference signals SRS.The method of this transmission SRS comprises the DCI carrying SRS information bit to terminal transmission, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and re-starts the information of the parameter configuration of periodically SRS or indicate described terminal to carry out triggering across carrier wave the information of SRS dynamic aperiodic; Receive the SRS that described terminal sends according to described SRS information bit.The embodiment of the present invention is by redefining the partial configuration in SRS information bit various configurations in DCI, this DCI is made not only to may be used for parameter configuration and the triggering of SRS aperiodic, but also may be used for realizing other functions such as re-start periodically SRS parameter configuration, trigger SRS dynamic aperiodic etc. across carrier wave, thus increase dispatching flexibility, strengthen overall resource utilization.
Description
Technical field
The embodiment of the present invention relates to wireless communication technology, particularly relates to a kind of transmission measuring reference signals (soundingreferencesignal; Hereinafter referred to as: methods, devices and systems SRS).
Background technology
Uplink measurement reference signal is by terminal (Userequipment; Hereinafter referred to as: a kind of signal UE) sent to base station, the content of this signal is all known in terminal and base station.After base station receives SRS, can measure the wireless channel between terminal to base station and associated transport condition.At senior Long Term Evolution (LongTermEvolutionAdvanced; Hereinafter referred to as: LTE-A) in technology, SRS is divided into two classes, and the first kind is called periodic measurement reference signal (PeriodicSRS), is another kind ofly called dynamic aperiodicity measuring reference signals (AperiodicSRS).Periodically SRS is once enable, and terminal is understood periodically, continue to base station transmission SRS, until be terminated.Comparatively speaking, aperiodic, SRS did not send after configuring, and time base station needs to carry out channel measurement, can pass through Downlink Control Information (Downlinkcontrolinformation; Hereinafter referred to as: DCI) trigger SRS, terminal just sends one or many SRS aperiodic after receiving this DCI.
In prior art, if DCI supports the triggering of SRS aperiodic, so wherein must there is a SRS information bit.This SRS information bit may comprise one or more bit, and bit number can transmit more amount of information more at most, represents and more configures, so configuration is more flexible.Such as, certain DCI aperiodic SRS SRS information bit in only have 1 bit, so can only represent that triggering does not still trigger SRS, all parameters sent needed for aperiodic SRS all configure at high level like this.If this SRS information bit comprises 3 bits, so altogether can express 8 kinds of configurations, while triggering, so just can configure the partial parameters of SRS aperiodic neatly, such as apply " 000 " expression and " do not trigger SRS ", application " 001 " expression " triggers SRS, uses CS0; comb0 ", and application " 111 " expression " triggers SRS, uses CS7, comb1 ".
In prior art, base station is being triggered in the process of SRS by DCI, and network resource utilization is lower.
Summary of the invention
The embodiment of the present invention provides a kind of methods, devices and systems sending measuring reference signals SRS, increases dispatching flexibility, strengthens resource utilization.
The embodiment of the present invention provides a kind of method sending measuring reference signals SRS, comprising:
The Downlink Control Information carrying SRS information bit is sent to terminal, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and re-starts the information of the parameter configuration of periodically SRS or indicate described terminal to carry out triggering across carrier wave the information of SRS dynamic aperiodic;
Receive the SRS that described terminal sends according to described SRS information bit.
The embodiment of the present invention also provides a kind of method sending measuring reference signals SRS, comprising:
Terminal receives Downlink Control Information that base station sends, that carry SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and re-starts the information of the parameter configuration of periodically SRS or indicate described terminal to carry out triggering across carrier wave the information of SRS dynamic aperiodic;
Described terminal sends SRS according to described SRS information bit.
The embodiment of the present invention also provides a kind of base station, comprising:
First sending module, for sending the Downlink Control Information carrying SRS information bit to terminal, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and re-starts the information of the parameter configuration of periodically SRS or indicate described terminal to carry out triggering across carrier wave the information of SRS dynamic aperiodic;
First receiver module, sends SRS for receiving described terminal according to described SRS information bit.
The embodiment of the present invention provides a kind of terminal, comprising:
Receiver module, for receiving Downlink Control Information that base station sends, that carry SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and re-starts the parameter configuration of periodically SRS or indicate described terminal to carry out triggering across carrier wave the information of SRS dynamic aperiodic;
Second sending module, for sending SRS according to described SRS information bit.
The embodiment of the present invention provides a kind of communication system, comprises base station that the embodiment of the present invention provides and the terminal that the embodiment of the present invention provides.
The methods, devices and systems of the transmission measuring reference signals SRS that the embodiment of the present invention provides, re-start the information of the parameter configuration of periodically SRS by comprising indicating terminal to SRS information bit in DCI or indicate described terminal to carry out triggering across carrier wave the information of SRS dynamic aperiodic, this DCI is made not only to may be used for parameter configuration and the triggering of SRS aperiodic, but also may be used for realizing other functions such as re-start periodically SRS parameter configuration, trigger SRS dynamic aperiodic etc. across carrier wave, thus increase dispatching flexibility, strengthen overall resource utilization.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the method one embodiment flow chart that the present invention sends SRS;
Fig. 2 is another embodiment flow chart of method that the present invention sends SRS;
A kind of schematic diagram that aperiodic, SRS triggered that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 is base station embodiment structural representation of the present invention;
Fig. 5 is terminal example structure schematic diagram of the present invention;
Fig. 6 is communications system embodiment structural representation of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
First configuration and the process of transmitting of periodically SRS and aperiodicity SRS is introduced respectively.If base station needs terminal to send periodically SRS, can be configured terminal by sending high-level signaling (RRCsignaling).In layoutprocedure, base station by high-level signaling by the parameter notifications terminal in such as table 1.After terminal obtains these configuration informations, periodically SRS will be sent continuously according to these parameters, until base station stops sending by high-level signaling notification terminal.
Table 1
If base station needs terminal to send SRS aperiodic, its process institute is different.First, base station can be terminal configuration SRS transmission parameter by high-level signaling, and this process is substantially the same with above-mentioned configuration cycle property SRS, and the parameter wherein configured can be the part of parameter in table 1, also can be whole.Wherein, do not have the parameter configured can configure again when SRS aperiodic in triggering, the flexibility of configuration can be improved like this.After high-level signaling configuration, terminal does not send SRS.Secondly, when base station needs terminal to send SRS, base station can be carried out notification terminal by DCI and send SRS.DCI is transmitted by down physical layer control channel (PDCCH).In the process triggering SRS aperiodic, give terminal because partial configuration parameter have been sent by high-level signaling by base station in advance, if so in PDCCH the parameter configuration of remainder to terminal, and inform that terminal is just passable the need of transmission SRS.
DCI comprises different types of control information, have for transfer of data, some instruction transmission rates, the control information wherein triggering configuration SRS aperiodic is one in DCI.DCI entrained in a PDCCH often comprises multiple control signal, and each control signal is called an information bit, and the DCI carried in different PDCCH may comprise different information bits.Some DCI has the information bit and SRS information bit that trigger SRS, and other DCI does not have SRS information bit, does not thus trigger the function of SRS.In some DCI except whether instruction SRS is triggered, parameter configuration can also be carried out.Terminal, after correctly have received DCI, owing to obtaining partial parameters configuration by high-level signaling before this, adds now the SRS information bit of DCI, thus obtains all configuration parameters.After this, terminal can send SRS aperiodic according to these parameters.
The embodiment of the present invention provides a kind of method for parameter configuration optimizing uplink measurement reference signal, base station can generate DCI, SRS information bit is carried in this DCI, and this SRS information bit at least comprises 2 bits, SRS information bit comprises and can re-start the information that the information of the parameter configuration of periodically SRS or indicating terminal carry out triggering across carrier wave SRS dynamic aperiodic by indicating terminal, and sends DCI to terminal.The information that SRS information bit comprises will be described further in the following embodiment of the present invention, identical with the information that the SRS information bit described in following examples comprises.Base station sends SRS for this terminal according to SRS information bit entrained in DCI by sending above-mentioned DCI to terminal.In the present embodiment, in the much information position that SRS represents, partial configuration can be used as configuration and trigger SRS aperiodic, and remaining configuration can be used as other purposes, thus increases dispatching flexibility, strengthens overall resource utilization.
Fig. 1 is the method one embodiment flow chart that the present invention sends SRS, and as shown in Figure 1, the method comprises:
Step 100, base station sends the DCI carrying SRS information bit to terminal;
Consider if DCI can be used as triggering and the configuration of SRS aperiodic in the embodiment of the present invention, and this DCI at least comprises 2 bits, then SRS information bit can represent various configurations.These configurations can be divided into several parts by the embodiment of the present invention, a part configures the triggering and the configuration that are still used for being SRS aperiodic, and the configuration of remainder can be used for realizing other functions, such as, comprise the parameter that reconfigures periodically SRS and the triggering etc. across carrier wave SRS aperiodic.Wherein, the parameter reconfiguring periodically SRS can dispatch SRS resource, the transmission of a few second periodicity SRS of such as temporary suspends more flexibly, and the resource saved is used as other purposes.In embodiments of the present invention, suspend the periodicity SRS of the current needs transmission that refers to that UE skips (skip), do not send this periodicity SRS when needs send periodicity SRS, therefore, pause period SRS transmission can be thought.The flexibility that SRS under carrier aggregation scene triggers then can be increased across the triggering of carrier wave SRS aperiodic.
Correspondingly, SRS information bit can comprise the information that indicating terminal re-starts the parameter configuration of periodically SRS, also can comprise the information that indicating terminal carries out triggering across carrier wave SRS dynamic aperiodic, each information can be base station in advance with terminal profile, maybe can pass through system configuration.Terminal, after receiving above-mentioned DCI, by identifying that the information in DCI, SRS information bit arranged just can specify the concrete operations of terminal by this DCI indicating terminal, and can send SRS to base station as indicated.
Base station before by high-level signaling by whole parameters of periodicity SRS, aperiodic SRS part or all of parameter configuration after end side, follow-uply can issue DCI by PDCCH to terminal.Before transmission DCI, base station can be arranged SRS information bit in DCI with the concrete operation of indicating terminal.Such as, if base station needs the transmission being carried out periodically SRS by DCI indicating terminal, then SRS information bit can be set to the information of the correspondence preset; If base station needs the transmission being undertaken across carrier wave SRS dynamic aperiodic by DCI indicating terminal, then SRS information bit can be set to the information of the correspondence preset.After base station sets SRS information bit, just the DCI of generation is sent to terminal by PDCCH.
Step 101, the SRS that base station receiving terminal sends according to SRS information bit.
Terminal, after receiving this DCI, by identifying the information of SRS information bit, being known the operation instruction of base station, just can be carried out the transmission processing of SRS according to this instruction.
The method of the transmission SRS that this enforcement provides, by defining the partial configuration in SRS information bit various configurations in DCI, described SRS information bit comprises the described terminal of instruction and re-starts the information of the parameter configuration of periodically SRS or indicate described terminal to carry out triggering across carrier wave the information of SRS dynamic aperiodic, this DCI is made not only to may be used for parameter configuration and the triggering of SRS aperiodic, but also may be used for realizing the parameter configuration that other functions such as re-start periodically SRS, across carrier wave triggering SRS dynamic aperiodic etc., thus increase dispatching flexibility, strengthen overall resource utilization.
Fig. 2 is another embodiment flow chart of method that the present invention sends SRS, and as shown in Figure 2, the method comprises:
Step 200, terminal receives DCI that base station sends, that carry SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit can comprise the described terminal of instruction and re-starts the parameter configuration of periodically SRS or indicate described terminal to carry out triggering across carrier wave the information of SRS dynamic aperiodic.
This method embodiment introduces the solution of the present invention from end side.Terminal receives the DCI that base station sends, and this DCI is that base station is obtained by the information arranging SRS information bit in DCI based on said method embodiment, and sends to terminal by base station by PDCCH.This DCI carries SRS information bit, and this SRS information bit at least comprises 2 bits, to ensure that this SRS information bit can comprise various configurations.SRS information bit can comprise indicating terminal and re-start the information that the information of the parameter configuration of periodically SRS or indicating terminal carry out triggering across carrier wave SRS dynamic aperiodic.
Step 201, described terminal sends SRS according to described SRS information bit entrained in described Downlink Control Information.
Terminal, after receiving this DCI, obtains the information of wherein SRS information bit, knows the operation instruction of base station, and sends SRS according to the operation instruction of base station.If the operation instruction of base station is the parameter configuration re-starting periodically SRS, then terminal will reconfigure the parameter of periodically SRS according to instruction, and according to the transmission of new parameter line periodically SRS.If the operation instruction of base station is that then terminal will trigger SRS aperiodic according to instruction on another carrier wave across carrier wave triggering SRS dynamic aperiodic.
The method of the transmission SRS that the embodiment of the present invention provides, can based on the definition of SRS information bit in DCI, not only may be used for parameter configuration and the triggering of SRS aperiodic as indicated, but also may be used for realizing other functions such as re-start periodically SRS parameter configuration, trigger SRS dynamic aperiodic etc. across carrier wave, thus increase dispatching flexibility, strengthen overall resource utilization.
Further, in each embodiment of method of the above-mentioned transmission SRS provided, the parameter configuration of carrying out periodically SRS can have following implementation, such as, the parameter of the parameter configuration of carrying out periodically SRS for a change periodically SRS transmission, the information that namely indicating terminal re-starts the parameter configuration of periodically SRS comprises following any one or its combination:
This information is that indicating terminal changes the information sending SRS cyclic shift (CS) or the SRS comb (comb) used in periodicity SRS.The CS that assumption period SRS adopts before this is x, then base station can indicate this terminal to change the CS used by DCI, the parameter CS that such as terminal can be configured by DCI by base station originally changes mod (x+4 into, 8) (8 deliverys after x+4, are used), after receiving DCI, CS changes into mod (x+4,8) (using 8 deliverys after x+4) by terminal; Or base station can change by DCI the parameter comb that terminal configured originally.The transmission of the SRS of different user can be dispatched on identical running time-frequency resource, as long as they use different CS or comb, mutual interference just can be very little.Identical running time-frequency resource in current agreement, has 2 comb, each comb has 8 CS, so can hold at most 2x8=16 SRS transmission.But there is now SRS aperiodic, so more SRS can be assigned in same asset by base station, such as 20 (wherein have periodically, also have acyclic), as long as each only triggering is less than 16 SRS and just may accomplishes resource contention (not colliding) does not occur, but this requires that base station can be that user selects suitable CS and comb by DCI.The present embodiment can change CS or comb of periodically SRS by DCI, benefit is likely in certain subframe, certain aperiodicity SRS needs Comb or CS using certain periodicity SRS after triggering, now periodically SRS can be allowed to change comb/CS by DCI, such both sides can send smoothly, and the SRS avoiding the transmission of periodically SRS and other users to send produces and collides.
This information is that indicating terminal changes the information sending the cycle used in periodicity SRS.The cycle that assumption period SRS adopts before this is N1, then base station can indicate this terminal to change the cycle of transmission by DCI, and such as, after receiving DCI, terminal will switch to N2 in the cycle.According to which kind of of concrete status transmission choice for use, such as, when needing often to carry out periodic measurement, the shorter cycle can be adopted like this in cycle, and adopt long period when not needing frequent periodic measurement.
This information is that indicating terminal changes the information sending the bandwidth used in periodicity SRS.The bandwidth that assumption period SRS adopts before this is W1, then base station can indicate this terminal to change bandwidth by DCI, and such as, after receiving DCI, bandwidth is switched to W2 by terminal.If terminal is more suitable for the measurement doing broadband like this, base station can switch to the SRS in broadband by indicating terminal, otherwise base station can switch to the SRS of arrowband with DCI indicating terminal.
This information is that indicating terminal changes the information sending the frequency hopping bandwidth used in periodicity SRS.Assumption period SRS frequency hopping bandwidth is before this H1, then base station can indicate this terminal to change frequency hopping bandwidth by DCI, and such as, after receiving DCI, modulating bandwidth is switched to H2 by terminal.Such base station can be that terminal selects frequency hopping bandwidth flexibly according to service needed.
In embodiments of the present invention, the parameter configuration of carrying out periodically SRS can also be temporary suspends N second periodicity SRS transmission, and the times N temporarily stopped paying out can be configured in table 2 by high-level signaling.
Table 2
The information that indicating terminal re-starts the parameter configuration of periodically SRS can comprise the information that indicating terminal suspends transmission periodicity SRS, such as indicating terminal rises receiving DCI, according to the time-out transmission times configured in high-level signaling, suspend and send periodically SRS.Such as certain terminal is configured transmission periodically SRS, afterwards with regard to the transmission SRS of durations.In embodiments of the present invention, base station can send DCI to this terminal, notifies that it suspends N time and sends.Like this because terminal has suspended N transmission, corresponding running time-frequency resource can be used as other purposes, and such as base station can be dispatched other users and be sent SRS aperiodic on the resource.
In embodiments of the present invention, the information that indicating terminal re-starts the parameter configuration of periodically SRS can also send periodically SRS for indicating terminal suspends, and the information of triggering and configuration aperiodic SRS transmission.Such as this information can rise receiving DCI by indicating terminal, according to the time-out transmission times configured in high-level signaling, suspends and sends periodically SRS, and trigger aperiodicity SRS according to the configuration parameter of high-level signaling simultaneously.Configuration aperiodic SRS transmission herein, when existing aperiodic SRS transmission configures, can think reshuffling of aperiodic SRS transmission.Particularly, this information can rise receiving DCI by indicating terminal, suspends the periodicity SRS sending N time, and the information of triggering aperiodicity SRS simultaneously.The number of times triggering aperiodicity SRS is configured by high-level signaling, as shown in table 2, and the frequency range shared by it is identical with suspending the periodicity SRS sent, but the place time meets the configuration of high-level signaling for aperiodicity SRS.
In embodiments of the present invention, the information that indicating terminal re-starts the parameter configuration of periodically SRS can also send periodically SRS for indicating terminal suspends, and trigger and configuration aperiodic SRS transmission, and in this aperiodic of transmission, CS and/or comb has the information that length is the skew of N.Such as this information can rise receiving DCI by indicating terminal, according to the time-out transmission times configured in high-level signaling, suspend and send periodically SRS, and trigger aperiodicity SRS according to the configuration parameter of high-level signaling simultaneously, and one or all in parameter CS and comb increases a side-play amount on the basis of periodicity SRS configuration, the CS of such as original configuration is x, then the CS of SRS employing aperiodic now triggered is mod (x+N, 8), wherein N is side-play amount.Configuration aperiodic SRS transmission herein, when existing aperiodic SRS transmission configures, can think reshuffling of aperiodic SRS transmission.
The schematic diagram that a kind of aperiodicity SRS that Fig. 3 provides for the embodiment of the present invention triggers, as shown in Figure 3, transverse axis is the time, and the longitudinal axis is frequency.Diagonal line hatches part is periodicity SRS.In the embodiment shown in fig. 3, in the n-th subframe, base station triggers PDCCH is transferred to terminal, after this terminal may need some subframes (such as 4 subframes) time demodulation to go out information entrained by DCI, terminal will suspend the transmission of N1 (being 1) second periodicity SRS herein according to the SRS information bit that base station sends, namely suspend 1 second periodicity SRS transmission in Fig. 3 (this transmission periodicity SRS's be originally in the position of n+kp at n+kp subframe place, represent with horizontal line in figure) herein, and according to SRS information bit, trigger N2 (being 1) secondary aperiodic SRS transmission herein simultaneously, and transmitting time is the time according to SRS configuration aperiodic, namely aperiodic SRS transmission (representing with vertical line in Fig. 3) is carried out at n+ka subframe place in Fig. 3.In the present embodiment, in the parameter of the aperiodic SRS transmission triggered, transmitting time is the configuration according to aperiodic SRS transmission, and namely UE carries out aperiodic SRS transmission in n+ka subframe; Bandwidth sum frequency domain position is the configuration according to the periodicity SRS being suspended transmission, and the position of the bandwidth sum frequency domain that the aperiodicity that namely UE sends in n+ka subframe is transmitted is identical with periodicity SRS transmission n+ka subframe being suspended transmission; All the other parameters (comprising CS, the parameters such as Comb) can be transmitted according to high level configuration, and can be the configuration parameter according to periodicity SRS transmission, also can be carry out according to the configuration parameter of aperiodic SRS transmission.In addition, in the present embodiment, one or all the increase side-play amount on the basis of periodicity SRS configuration in parameter CS and comb can also be made, such as the CS of original configuration is x, the CS that the aperiodic of then now triggering, SRS adopted is mod (x+N, 8), and wherein N is side-play amount.
In the embodiment of the method for the above-mentioned transmission SRS provided, the information that indicating terminal carries out triggering SRS dynamic aperiodic across carrier wave also comprises indicating terminal receiving DCI and rises, according to the target carrier mark configured in high-level signaling, as shown in table 2, carry out the information across carrier wave triggering SRS dynamic aperiodic.Under being mainly applied in carrier aggregation scene across carrier wave triggering, the next terminal of this scene can at multiple up-link carrier transmitting data.PDCCH and up-link carrier have binding relationship.Such as certain terminal has two up-link carriers, and so PDCCH and this two carrier waves have binding relationship respectively, and such as certain PDCCH and first carrier bind, and so this PDCCH can only trigger on first carrier and send SRS aperiodic.Here this embodiment introduces and trigger across carrier wave, if terminal have received the PDCCH of this configuration, then should send SRS on a second carrier.By such mode, can increase SRS and trigger the flexibility with scheduling, because prior art can only trigger the SRS on this carrier wave, the embodiment of the present invention can be supported to trigger the SRS on other carrier waves.Again further, if except first carrier, also there are other two carrier waves, now need the target carrier of instruction across carrier wave to be arranged in table 2 by high-level signaling in advance, as shown in table 2, the information of SRS information bit only does the triggering across carrier wave.
Certainly, a DCI comprising at least 2 bits can represent various configurations, the embodiment of the present invention points out that wherein part configuration still can also comprise by SRS information bit in prior art and DCI the information sending SRS aperiodic for triggering terminal, namely triggers and configure SRS aperiodic on this carrier wave; And realize other functions recited above with other configuration.An object lesson is as shown in table 3 below, the partial parameters of dynamic-configuration SRS aperiodic.
Table 3
In example shown in table 3, because this DCI has 3bit, therefore 8 kinds of configurations can be represented.Wherein " 000 " represents does not need terminal to do any process; " 001-100 ", is used for being configured SRS dynamic aperiodic; " 101-110 ", represents reconfiguring periodicity SRS; " 111 ", represent that being used for the SRS carried out across carrier wave triggers.After terminal receives this DCI, carry out next step operation according to the information that DCI carries.If be " 000 ", do not carry out any action; If be " 001-100 ", then trigger aperiodicity SRS, and according to corresponding information, SRS aperiodic is configured; If be " 101-110 ", then reconfigure periodically SRS; If for " 111 ", corresponding carrier wave sends SRS dynamic aperiodic.
If SRS information bit only includes 2bit in DCI, then can represent 4 kinds of configurations: " 00 " represents and do not need to do any process; " 01-10 " represents the configuration information for SRS dynamic aperiodic; " 11 " represent reconfiguring periodicity SRS.In addition, also can comprise multiple possibility with DCI for the configuration of aperiodicity SRS, simply show the example of configuration CS and comb in table 3, other possibility comprises reconfiguring for other parameters in table 2, such as, change bandwidth, changes frequency domain position etc.
In each embodiment of the method for the present invention, can represent that the partial configuration in the SRS information bit of multiple configuration is used as except configuration and other purposes triggering SRS aperiodic, thus increase dispatching flexibility, strengthen overall resource utilization.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Fig. 4 is base station embodiment structural representation of the present invention, as shown in Figure 4, this base station comprises the first sending module 11 and the first receiver module 12, wherein, first sending module 11 is for sending the DCI carrying SRS information bit to terminal, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises indicating terminal and re-starts the information of the parameter configuration of periodically SRS or indicate described terminal to carry out triggering across carrier wave the information of SRS dynamic aperiodic; First receiver module 12 sends SRS for receiving terminal according to SRS information bit.
Particularly, consider if DCI can be used as triggering and the configuration of SRS aperiodic in the embodiment of the present invention, and this DCI at least comprises 2 bits, then SRS information bit can represent various configurations, these configurations can be divided into several parts, part configuration is still used for doing triggering and the configuration of SRS aperiodic, and the configuration of remainder can be used for realizing other functions, such as, comprise the parameter that reconfigures periodically SRS and the triggering etc. across carrier wave SRS aperiodic.Base station generates the DCI comprising the SRS information bit with mark action by the first sending module 11, and send to terminal, terminal is after receiving this DCI, by identifying the information of SRS information bit, know the operation instruction of base station, just can send SRS, base station can receive by the first receiver module 12 SRS that this terminal returns according to described SRS information bit.
Further, in above-described embodiment, the first sending module 11 comprises generation unit and transmitting element, generation unit can carry out the setting of different information, such as carry out the parameter configuration of periodically SRS, trigger across carrier wave dynamic aperiodic SRS and aperiodic SRS parameter configuration, generation unit by comprising following submodule realize, particularly, generation unit to comprise in following submodule any one or combination:
First generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and changes the information sending the SRS cyclic shift used in periodicity SRS;
Second generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and changes the information sending the SRS comb used in periodicity SRS;
3rd generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and changes the information sending the cycle used in periodicity SRS;
4th generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and changes the information sending the bandwidth used in periodicity SRS;
5th generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and changes the information sending the frequency hopping bandwidth used in periodicity SRS;
6th generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and suspends the information sending periodically SRS; Such as, rise receiving described Downlink Control Information, according to the time-out transmission times configured in high-level signaling, suspend and send periodically SRS;
7th generates submodule, for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, described SRS information bit comprises the information that the described terminal of instruction carries out triggering across carrier wave SRS dynamic aperiodic, such as, rise receiving described Downlink Control Information, carry out according to the target carrier information configured in high-level signaling the information triggering SRS dynamic aperiodic across carrier wave;
8th generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the information sending SRS aperiodic for triggering described terminal.
9th generates submodule, for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and suspends transmission periodically SRS, and triggers the information of aperiodicity SRS according to the configuration parameter of high-level signaling simultaneously.
Tenth generates submodule, for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, described SRS information bit comprises the described terminal of instruction and suspends transmission periodically SRS, and trigger and configuration aperiodic SRS transmission, and the cyclic shift of this aperiodicity transmission and/or comb have the information that length is the skew of N compared with periodicity SRS.
The handling process of the base station that the present embodiment provides and function see above-mentioned each embodiment of the method, can repeat no more herein.The base station that this enforcement provides, by redefining according to actual demand the partial configuration in SRS information bit various configurations in DCI, this DCI is made not only to may be used for parameter configuration and the triggering of SRS aperiodic, can also be used for realizing other functions such as re-start periodically SRS parameter configuration, trigger SRS dynamic aperiodic etc. across carrier wave, thus increase dispatching flexibility, strengthen overall resource utilization.
Fig. 5 is terminal example structure schematic diagram of the present invention, as shown in Figure 5, this terminal comprises receiver module 21 and the second sending module 22, wherein, receiver module 21 is for receiving DCI that base station sends, that carry SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and re-starts the information of the parameter configuration of periodically SRS or indicate described terminal to carry out triggering across carrier wave the information of SRS dynamic aperiodic; Second sending module 22 is for sending SRS according to described SRS information bit.
Particularly, base station arranges the information of SRS information bit in DCI according to actual demand and after generating DCI, this DCI is sent to terminal by PDCCH.Terminal receives this DCI by receiver module 21, then obtains the information of wherein SRS information bit, and sends SRS by the second sending module 22 according to the operation instruction of base station.The concrete handling process of the terminal that the present embodiment provides and function can be implemented see above-mentioned each method, repeat no more herein.
The terminal that the embodiment of the present invention provides, can redefining based on SRS information bit in DCI, parameter configuration and the triggering of SRS aperiodic is not only may be used for according to SRS information bit, but also may be used for realizing other functions such as re-start periodically SRS parameter configuration, trigger SRS dynamic aperiodic etc. across carrier wave, thus increase dispatching flexibility, strengthen overall resource utilization.
Fig. 6 is communications system embodiment structural representation of the present invention, and as shown in Figure 6, this communication system comprises base station 1 and terminal 2, and wherein base station 1 is connected by wireless network with terminal 2.The base station related in this communication system can by redefining according to actual demand the partial configuration in SRS information bit various configurations in DCI, this DCI is made not only to may be used for parameter configuration and the triggering of SRS aperiodic, but also may be used for realizing other functions such as re-start periodically SRS parameter configuration, trigger SRS dynamic aperiodic etc. across carrier wave, thus increase dispatching flexibility, strengthen overall resource utilization.
The base station related in this communications system embodiment and terminal, the base station and terminal that there is provided in above-mentioned each device embodiment can be provided, base station in device embodiment and terminal can implement the embodiment of the method that the invention described above embodiment provides, SRS in communication system triggers the handling process that handling process can provide see above-mentioned each embodiment of the method, repeats no more herein.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (7)
1. send a method of measuring reference signals SRS, it is characterized in that, comprising:
The Downlink Control Information carrying SRS information bit is sent to terminal, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and re-starts the information of the parameter configuration of periodically SRS or indicate described terminal to carry out triggering across carrier wave the information of dynamic aperiodicity SRS;
Receive the SRS that described terminal sends according to described SRS information bit;
Wherein, the information that the described terminal of described instruction carries out triggering across carrier wave dynamic aperiodicity SRS comprises:
Indicate described terminal according to the target carrier information configured in high-level signaling, carry out the information triggering dynamic aperiodicity SRS across carrier wave, described terminal is at multiple up-link carrier transmitting data;
The information that the described terminal of described instruction re-starts the parameter configuration of periodically SRS comprises following any one or combination:
Described terminal is indicated to change the information of the SRS cyclic shift used in transmission periodicity SRS; Or,
Described terminal is indicated to change the information of the SRS comb used in transmission periodicity SRS; Or,
Described terminal is indicated to change the information in the cycle used in transmission periodicity SRS; Or,
Described terminal is indicated to change the information of the bandwidth used in transmission periodicity SRS; Or,
Described terminal is indicated to change the information of the frequency hopping bandwidth used in transmission periodicity SRS; Or,
Described terminal is indicated to suspend the information sending periodically SRS; Or,
Indicate described terminal to suspend and send periodically SRS, and trigger and configure the information of aperiodic SRS transmission; Or,
Indicate described terminal to suspend and send periodically SRS, and trigger and configuration aperiodic SRS transmission, and the cyclic shift of described aperiodicity transmission and/or comb have the information that length is the skew of N compared with periodicity SRS.
2. the method for transmission measuring reference signals SRS according to claim 1, is characterized in that, described SRS information bit also comprises the information sending aperiodicity SRS for triggering described terminal.
3. send a method of measuring reference signals SRS, it is characterized in that, comprising:
Terminal receives Downlink Control Information that base station sends, that carry SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and re-starts the information of the parameter configuration of periodically SRS or indicate described terminal to carry out triggering across carrier wave the information of dynamic aperiodicity SRS;
Described terminal sends SRS according to described SRS information bit;
The information that the described terminal of described instruction carries out triggering across carrier wave dynamic aperiodicity SRS comprises:
Indicate described terminal according to the target carrier information configured in high-level signaling, carry out the information triggering dynamic aperiodicity SRS across carrier wave, described terminal is at multiple up-link carrier transmitting data;
The information that the described terminal of described instruction re-starts the parameter configuration of periodically SRS comprises following any one or combination:
Described terminal is indicated to change the information of the SRS cyclic shift used in transmission periodicity SRS; Or,
Described terminal is indicated to change the information of the SRS comb used in transmission periodicity SRS; Or,
Described terminal is indicated to change the information in the cycle used in transmission periodicity SRS; Or,
Described terminal is indicated to change the information of the bandwidth used in transmission periodicity SRS; Or,
Described terminal is indicated to change the information of the frequency hopping bandwidth used in transmission periodicity SRS; Or,
Described terminal is indicated to suspend the information sending periodically SRS; Or,
Indicate described terminal to suspend and send periodically SRS, and trigger and configure the information of aperiodic SRS transmission; Or,
Indicate described terminal to suspend and send periodically SRS, and trigger and configuration aperiodic SRS transmission, and the cyclic shift of described aperiodicity transmission and/or comb have the information that length is the skew of N compared with periodicity SRS.
4. the method for transmission measuring reference signals SRS according to claim 3, is characterized in that, described SRS information bit also comprises the information sending aperiodicity SRS for triggering described terminal.
5. a base station, is characterized in that, comprising:
First sending module, for sending the Downlink Control Information carrying SRS information bit to terminal, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and re-starts the information of the parameter configuration of periodically SRS or indicate described terminal to carry out triggering across carrier wave the information of dynamic aperiodicity SRS;
First receiver module, sends SRS for receiving described terminal according to described SRS information bit;
Wherein, the information that the described terminal of described instruction carries out triggering across carrier wave dynamic aperiodicity SRS comprises:
Indicate described terminal according to the target carrier information configured in high-level signaling, carry out the information triggering dynamic aperiodicity SRS across carrier wave, described terminal is at multiple up-link carrier transmitting data;
Described first sending module comprises generation unit and transmitting element, and wherein generation unit to comprise in following submodule any one or combination:
First generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and changes the information sending the SRS cyclic shift used in periodicity SRS; Or,
Second generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and changes the information sending the SRS comb used in periodicity SRS; Or,
3rd generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and changes the information sending the cycle used in periodicity SRS; Or,
4th generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and changes the information sending the bandwidth used in periodicity SRS; Or,
5th generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and changes the information sending the frequency hopping bandwidth used in periodicity SRS; Or,
6th generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and suspends the information sending periodically SRS; Or,
7th generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the information that the described terminal of instruction carries out triggering across carrier wave dynamic aperiodicity SRS; Or,
8th generates submodule, and for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the information sending aperiodicity SRS for triggering described terminal; Or,
9th generates submodule, for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and suspends transmission periodically SRS, and the information of triggering and configuration aperiodic SRS transmission; Or,
Tenth generates submodule, for generating the Downlink Control Information carrying SRS information bit, described SRS information bit at least comprises 2 bits, described SRS information bit comprises the described terminal of instruction and suspends transmission periodically SRS, and trigger and configuration aperiodic SRS transmission, and the cyclic shift of described aperiodicity transmission and/or comb have the information that length is the skew of N compared with periodicity SRS.
6. a terminal, is characterized in that, comprising:
Receiver module, for receiving Downlink Control Information that base station sends, that carry SRS information bit, described SRS information bit at least comprises 2 bits, and described SRS information bit comprises the described terminal of instruction and re-starts the parameter configuration of periodically SRS or indicate described terminal to carry out triggering across carrier wave the information of dynamic aperiodicity SRS;
Second sending module, for sending SRS according to described SRS information bit;
The information that the described terminal of described instruction carries out triggering across carrier wave dynamic aperiodicity SRS comprises:
Indicate described terminal according to the target carrier information configured in high-level signaling, carry out the information triggering dynamic aperiodicity SRS across carrier wave, described terminal is at multiple up-link carrier transmitting data;
The information that the described terminal of described instruction re-starts the parameter configuration of periodically SRS comprises following any one or combination:
Described terminal is indicated to change the information of the SRS cyclic shift used in transmission periodicity SRS; Or,
Described terminal is indicated to change the information of the SRS comb used in transmission periodicity SRS; Or,
Described terminal is indicated to change the information in the cycle used in transmission periodicity SRS; Or,
Described terminal is indicated to change the information of the bandwidth used in transmission periodicity SRS; Or,
Described terminal is indicated to change the information of the frequency hopping bandwidth used in transmission periodicity SRS; Or,
Described terminal is indicated to suspend the information sending periodically SRS; Or,
Indicate described terminal to suspend and send periodically SRS, and trigger and configure the information of aperiodic SRS transmission; Or,
Indicate described terminal to suspend and send periodically SRS, and trigger and configuration aperiodic SRS transmission, and the cyclic shift of described aperiodicity transmission and/or comb have the information that length is the skew of N compared with periodicity SRS.
7. a communication system, is characterized in that, comprises base station as claimed in claim 5, and terminal as claimed in claim 6.
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| CN201010550573.3A CN102469613B (en) | 2010-11-12 | 2010-11-12 | Send the methods, devices and systems of measuring reference signals SRS |
| PCT/CN2012/070251 WO2012062227A2 (en) | 2010-11-12 | 2012-01-12 | Method, device, and system for sending a sounding reference signal (srs) |
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| CN201010550573.3A CN102469613B (en) | 2010-11-12 | 2010-11-12 | Send the methods, devices and systems of measuring reference signals SRS |
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| CN106455092B (en) * | 2015-08-13 | 2019-11-22 | 中国移动通信集团公司 | Sending method, device, terminal and the base station of Sounding Reference Signal |
| CN109039559B (en) | 2015-11-18 | 2020-07-07 | 华为技术有限公司 | Method, device and system for triggering uplink detection signal |
| CN105656539B (en) * | 2015-12-31 | 2019-04-05 | 华为技术有限公司 | SRS sending control method and base station |
| CN111740812B (en) * | 2016-04-01 | 2022-09-20 | 中兴通讯股份有限公司 | Sounding reference signal transmission method |
| CN107566101A (en) * | 2016-06-30 | 2018-01-09 | 中兴通讯股份有限公司 | A kind of collocation method, device and the base station of detection reference signal SRS resource |
| CN108270533B (en) | 2016-12-30 | 2021-08-20 | 华为技术有限公司 | Method, device and system for transmitting uplink measurement reference signal |
| CN108418614B (en) * | 2017-02-10 | 2021-04-09 | 上海诺基亚贝尔股份有限公司 | Communication method and device for non-linear precoding |
| CN108880777B (en) * | 2018-09-19 | 2021-05-04 | 东南大学 | Channel detection reference signal sending and receiving method suitable for UFMC waveform |
| CN110602748B (en) * | 2019-08-23 | 2022-11-29 | 北京紫光展锐通信技术有限公司 | Data receiving method and device, and control method and device |
| CN111092708A (en) * | 2019-11-08 | 2020-05-01 | 中兴通讯股份有限公司 | Transmission method, transmission device, first communication node, second communication node and medium |
| CN116671210A (en) * | 2021-12-28 | 2023-08-29 | 北京小米移动软件有限公司 | SRS triggering method, device and storage medium |
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| WO2010036053A2 (en) * | 2008-09-26 | 2010-04-01 | Samsung Electronics Co., Ltd. | Apparatus and method for supporting transmission of sounding reference signals from multiple antennas |
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