CN101795145B - Sending method and system for measuring reference signals - Google Patents
Sending method and system for measuring reference signals Download PDFInfo
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- CN101795145B CN101795145B CN201010110955.4A CN201010110955A CN101795145B CN 101795145 B CN101795145 B CN 101795145B CN 201010110955 A CN201010110955 A CN 201010110955A CN 101795145 B CN101795145 B CN 101795145B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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Abstract
The invention discloses sending method and system for measuring reference signals. In sending method, a terminal receives indication information sent by a base station; and the terminal respectively and simultaneously sends a first measurement reference signal and a second measurement reference signal on an orthogonal frequency division multiplexing (OFDM) symbol in a subframe indicated by the indication information. The invention improves the containable user number in a LTE (long term evolution)-A system.
Description
Technical field
The present invention relates to the communications field, especially relate to sending method and the system of a kind of measuring reference signals (SoundingReference Signal, referred to as SRS).
Background technology
Long Term Evolution (Long Term Evolution, referred to as LTE) uplink physical channel of system comprises Physical Random Access Channel (Physical Random Access Channel, referred to as PRACH), Physical Uplink Shared Channel (Physical uplink shared channel, referred to as PUSCH), Physical Uplink Control Channel (Physical uplink controlchannel, referred to as PUCCH).Wherein, PUSCH has two kinds of different Cyclic Prefix (Cyclic Prefix, referred to as CP) length, respectively general cyclic prefix (NormalCyclic Prefix, referred to as Normal CP) and extended cyclic prefix (Extended CyclicPrefix, referred to as Extended CP).Each transmission subframe (Subframe) of PUSCH is made up of two time slots (Slot), for different circulating prefix-lengths, demodulated reference signal (Demodulation Reference Signal, referred to as DMRS) in subframe, residing position can be different, and Fig. 1 is the time-domain position schematic diagram according to the demodulated reference signal of prior art.As shown in Figure 1, each subframe contains two DMRS symbols, wherein, Fig. 1 (a) is while adopting general cyclic prefix, the schematic diagram of DMRS time-domain position, each subframe contains 14 OFDMs (Orthogonal Frequency DivisionMultiplexing, referred to as OFDM) symbol, comprise DMRS symbol, the time-domain position of a subframe of OFDM symbology, Fig. 1 (b) is while adopting extended cyclic prefix, the schematic diagram of DMRS time-domain position, the OFDM symbol that each subframe contains 12 time domains.
In LTE, physical downlink control channel PDCCH is used for carrying uplink and downlink schedule information, and uplink power control information.Downlink Control Information (Downlink ControlInformation, referred to as DCI) form (format) is divided into DCI format 0,1,1A, 1B, 1C, 1D, 2,2A, 3,3A etc.Base station (e-Node-B, referred to as eNB) can pass through Downlink Control Information configurating terminal device (User Equipment, referred to as UE), or the configuration of terminal equipment acceptance high-rise (higher layers), also referred to as carrying out configuration UE by high-level signaling.
SRS is the signal that is used for measuring radio channel information (ChannelState Information, referred to as CSI) between a kind of terminal equipment and base station.In long evolving system, UE is according to parameters such as bandwidth, frequency domain position, sequence cyclic shift, cycle and the sub-frame offset of eNB instruction, and timing sends uplink SRS on last data symbol that sends subframe.ENB judges according to the SRS receiving the CSI that UE is up, and carries out the operations such as frequency domain selection scheduling, close-loop power control according to the CSI obtaining.In LTE system, the SRS sequence that UE sends is by a root sequence
carry out in time domain that cyclic shift α obtains.Same root sequence is carried out to different cyclic shift α, just can obtain different SRS sequences, and mutually orthogonal between these SRS sequences that obtain, therefore, can use these SRS sequence allocation to different UE, to realize the code division multiple access between UE.In LTE system, SRS sequence definition 8 cyclic shift α, provide by formula (1) below:
Wherein, n
sRS cssignaling by 3bit is indicated, and is respectively 0,1,2,3,4,5,6 and 7.That is to say, under same running time-frequency resource, the UE in community has 8 available code resources, and eNB can configure at most 8 UE and on identical running time-frequency resource, send SRS simultaneously.Formula (1) can be regarded as SRS sequence is uniformly-spaced divided into 8 parts in time domain, but due to the SRS sequence length multiple that is 12, so the minimum length of SRS sequence is 24.
In LTE system, the frequency domain bandwidth of SRS adopts tree to be configured.The corresponding tree structure of each SRS band width configuration (SRS bandwidth configuration), the SRS bandwidth (SRS-Bandwidth) of top (or being called ground floor) is to maximum SRS bandwidth that should SRS band width configuration, or is called SRS bandwidth range.UE, according to the signaling instruction of base station, calculates after the SRS bandwidth of self, then the top signaling frequency domain position n sending according to eNB
rRCdetermine that self sends the frequency domain initial position of SRS.Fig. 2 is the different n of the distribution of prior art
rRCuE send the frequency domain initial position schematic diagram of SRS, as shown in Figure 2, distributed different n
rRCthe zones of different of UEJiang community SRS bandwidth sends SRS, and wherein, UE1 is according to n
rRC=0 determines the frequency initial position that sends SRS, and UE2 is according to n
rRC=3 determine the frequency initial position that sends SRS, and UE3 is according to n
rRC=4 determine the frequency initial position that sends SRS, and UE4 is according to n
rRC=6 determine the frequency initial position that sends SRS.
The sequence that SRS uses is selected from demodulation pilot frequency sequence group, when the SRS of UE bandwidth is 4 Resource Block (Resource Block, referred to as RB) time, using length is the sequence of the computer generation (Computer Generated, referred to as CG) of 2 RB; In the time that the SRS of UE band is wider than 4 RB, use the Zadoff-Chu sequence of corresponding length.
In addition, in same SRS bandwidth, the subcarrier (sub-carrier) of SRS is that place at interval, that is to say, the transmission of SRS adopts pectinate texture, the quantity of the frequency comb (frequency comb) in LTE system is 2, is also 2 corresponding to the repeat factor value (RePetition Factor, referred to as RPF) of time domain.Fig. 3 is the pectinate texture schematic diagram of the SRS of prior art, as shown in Figure 3, when each UE sends SRS, only uses in two frequency comb, comb=0 or comb=1.Like this, UE, according to the instruction of the top signaling of 1 bit, only uses the subcarrier that frequency domain index is even number or odd number to send SRS.This pectinate texture allows more UE to send SRS in same SRS bandwidth.
In same SRS bandwidth, multiple UE can use different cyclic shifts in same frequency comb, then send SRS by code division multiplexing, also can two UE in different frequency comb, send SRS by frequency division multiplexing.For instance, in LTE system, in certain SRS bandwidth (4 RB), send the UE of SRS, operable cyclic shift has 8, operable frequency comb is 2, and UE always has 16 resources that can be used to send SRS thus, that is to say, in this SRS bandwidth, can send at most 16 SRS simultaneously.Owing to not supporting uplink single user multiple-input and multiple-output (Single User Multiple Input Multiple Output in LTE system, referred to as SU-MIMO), UE can only have an antenna to send SRS in each moment, so a UE only needs a SRS resource, therefore, in above-mentioned SRS bandwidth, system at most can 16 UE of concurrent multiplexing.
Senior LTE (LTE-Advanced, referred to as LTE-A) system is the evolution system of future generation of LTE system, at up support SU-MIMO, and can use at most 4 antennas as up transmitting antenna.That is to say, UE can send SRS at synchronization on many antennas simultaneously, and eNB need to estimate the state on every channel according to the SRS receiving on every antenna.
In the research of existing LTE-A, propose: in uplink communication, should use the SRS of non-precoding (being that antenna is proprietary).Now, in the time that UE uses many antennas to send the SRS of non-precoding, the needed SRS resource of each UE can increase, also just caused in system can concurrent multiplexing UE quantity decline.In addition, send SRS except retaining LTE original cycle (periodic), can also send SRS by Downlink Control Information or high-level signaling configuration UE aperiodic (aperiodic).
For example, in certain SRS bandwidth (4 RB), if each UE uses 4 antennas to send SRS, the needed number of resources of so each UE is exactly 4.Be total up to 16 according to the SRS number of resources that can support in an above-mentioned SRS bandwidth, in this SRS bandwidth, UE number that can be multiplexing is just reduced to 4 so.Number of users that can concurrent multiplexing in system will be 1/4 of original LTE.
Owing to proposing in the demand of LTE-A, the number of users that LTE-A system can be held should be no less than LTE system again, so the actual contradiction that caused that when this demand just sends SRS with above-mentioned many antennas, number of users declines.
Summary of the invention
Main purpose of the present invention is to provide a kind of delivery plan of measuring reference signals, at least to address the above problem.
According to an aspect of the present invention, provide a kind of sending method of measuring reference signals, comprised the following steps: terminal has received the indication information that base station sends; And terminal sends the first measuring reference signals and the second measuring reference signals on two orthogonal frequency division multiplex OFDM symbols respectively in a subframe of indication information instruction simultaneously to base station.
Preferably, two two uplink demodulation reference signal symbols that OFDM symbol is subframe.
Preferably, said method also comprises: terminal, in sending the first measuring reference signals and the second measuring reference signals, sends the 3rd measuring reference signals on last OFDM symbol of the subframe of indicating at indication information.
Preferably, said method also comprises: measuring reference signals and aperiodic measuring reference signals in the case of in the cycle are configured in same subframe transmission, terminal only sends aperiodic measuring reference signals, or terminal sends measuring reference signals and the aperiodic measuring reference signals in cycle simultaneously.
Preferably, two OFDM symbols in the first measuring reference signals and the second measuring reference signals and two uplink demodulation reference signals or other OFDM symbols of subframe adopt orthogonal mask to carry out code division multiplexing.
Preferably, orthogonal mask is: [+1 ,+1] or [+1 ,-1].
Preferably, the orthogonal mask that base station is used by signaling indicating terminal the first measuring reference signals and the second measuring reference signals.
Preferably, the frequency domain of the first measuring reference signals and the second measuring reference signals sends position, the reference signal sequence that uses is identical.
Preferably, the transmission bandwidth of the first measuring reference signals and the second measuring reference signals, the cyclic shift value that uses are identical with frequency comb.
Preferably, the cyclic shift value that the first measuring reference signals and the second measuring reference signals can be used has 8,12 or 16.
The quantity of the frequency comb that preferably, the first measuring reference signals and the second measuring reference signals can be used is 2,3 or 4.
Preferably, receive the indication information of base station transmission in terminal before, above-mentionedly also comprise: base station configurating terminal sends the time-domain position of measuring reference signals, and send indication information to terminal, wherein, last OFDM symbol of time-domain position be subframe two orthogonal frequency division multiplex OFDM symbols and/or subframe.
Preferably, indication information is indicated by Downlink Control Information or high-level signaling.
According to a further aspect in the invention, provide a kind of transmitting system of measuring reference signals, comprised base station and terminal, this base station comprises: the first sending module, for sending indication information to terminal, wherein, indication information is used to indicate the time-domain position of terminal transmission measuring reference signals; This terminal comprises: receiver module, for receiving indication information; The second sending module, for send the first measuring reference signals and the second measuring reference signals respectively simultaneously on two orthogonal frequency division multiplex OFDM symbols of a subframe of indication information instruction to base station.
Preferably, base station also comprises: configuration module, and for the time-domain position of configurating terminal transmission measuring reference signals.
Preferably, the time-domain position that configuration module is used for two uplink demodulation reference signal symbol places that configure subframe is the time-domain position that terminal sends the first measuring reference signals and the second measuring reference signals, wherein, whether indication information is used to indicate on the time-domain position at two uplink demodulation reference signal symbol places of subframe and sends measuring reference signals, or indication information is used to indicate the time-domain position at two uplink demodulation reference signal symbol places.
Preferably, the second sending module also for sending the 3rd measuring reference signals in sending the first measuring reference signals and the second measuring reference signals on last OFDM symbol of the subframe of indication information instruction.
By the present invention, on the OFDM symbol of two time domains in a subframe of the indication information instruction that employing terminal sends in base station respectively, send the first measuring reference signals and the second measuring reference signals to this base station simultaneously, solve in the LTE-A system of prior art the problem that when many antennas send SRS, number of users declines, increase the quantity of SRS resource available in LTE-A system, improved the number of users that can hold in LTE-A system.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the time-domain position schematic diagram of the demodulated reference signal of prior art;
Fig. 2 is the different n of the distribution of prior art
rRCuE send the frequency domain initial position schematic diagram of SRS;
Fig. 3 is the pectinate texture schematic diagram of the SRS of prior art;
Fig. 4 is according to the structured flowchart of the transmitting system of the SRS of the embodiment of the present invention;
Fig. 5 is the preferred structure block diagram according to the transmitting system of the SRS of the embodiment of the present invention;
Fig. 6 is according to the flow chart of the sending method of the SRS of the embodiment of the present invention;
Fig. 7 is the flow chart one according to the sending method of the preferred SRS of the embodiment of the present invention;
Fig. 8 is according to the flowchart 2 of the sending method of the preferred SRS of the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
In embodiments of the present invention, the contradiction of number of users between declining while solving LTE-A and send SRS for the demand of user capacity and many antennas by SRS resource available in increase system.Based on this, the transmitting system of a kind of SRS is provided, comprise base station and terminal.Fig. 4 is according to the structured flowchart of the transmitting system of the SRS of the embodiment of the present invention, and as shown in Figure 4, base station comprises: the first sending module 44, terminal comprises: receiver module 46, the second sending module 48, be described in detail this system below.
Base station comprises: the first sending module 44, and this module is for sending indication information to terminal, and wherein, indication information can be indicated by Downlink Control Information or high-level signaling, and indication information is used to indicate the time-domain position of terminal transmission SRS.
Terminal comprises: receiver module 46, and this module is used for receiving indication information; The second sending module 48 is connected to receiver module 46, this module at two orthogonal frequency division multiplex OFDM symbols of a subframe of indication information instruction, sends a SRS (measuring reference signals 1) and the 2nd SRS (measuring reference signals 2) for respectively simultaneously to base station.
Fig. 5 is the preferred structure block diagram according to the transmitting system of the SRS of the embodiment of the present invention, and as shown in Figure 5, base station also comprises configuration module 42, and this module sends the time-domain position of SRS for configurating terminal.
Preferably, this configuration module 42 can configure terminal and whether on the time-domain position at two uplink demodulation reference signal symbol places of a subframe, send measuring reference signals.Now, indication information, can directly indicate the time-domain position at two uplink demodulation reference signal symbol places, or, also can indicate whether to send measuring reference signals on the time-domain position at these two uplink demodulation reference signal symbol places.
Preferably, the second sending module 48 also for sending Three S's RS in sending a SRS and the 2nd SRS on the time-domain position at last data symbol place of the subframe of indication information instruction.
In embodiments of the present invention, corresponding to above-mentioned system, provide the sending method of a kind of SRS, Fig. 6 is according to the flow chart of the sending method of the SRS of the embodiment of the present invention, and as shown in Figure 6, this flow process comprises the steps:
Step S602, terminal receives the indication information that base station sends;
Step S604, terminal sends the first measuring reference signals and the second measuring reference signals on two OFDM symbols respectively in a subframe of indication information instruction simultaneously to base station.
To step S604, effectively increase the quantity of measuring reference signals resource in LTE-A system by said system and step S602.
Fig. 7 is the flow chart one according to the sending method of the preferred SRS of the embodiment of the present invention, and as shown in Figure 7, the method comprises the steps:
Step S702, terminal receives the indication information (for example, signaling instruction) that base station sends;
Step S704 on the time-domain position at two uplink demodulation reference signal symbol places of the subframe that terminal is indicated at this indication information respectively, sends a SRS and the 2nd SRS simultaneously to base station.
Preferably, in order to make the more of SRS resource in system, can also adopt the flow process in Fig. 8, Fig. 8 is according to the flow chart of the sending method of the preferred SRS of the embodiment of the present invention, as shown in Figure 8, this flow process and Fig. 7 and Fig. 6 difference are, in step S804, terminal, in sending a SRS and the 2nd SRS, sends Three S's RS on last OFDM symbol of the subframe of indicating at this indication information.
Preferably, before above-mentioned steps S502 and step S602, base station can configurating terminal sends the time-domain position of measuring reference signals, this time-domain position can be the time-domain position at last symbol of subframe and/or two OFDM symbols of subframe (for example, two DMRS symbols) place.
Preferably, measuring reference signals 1 and measuring reference signals 2 and two DMRS symbols adopt orthogonal mask (Orthogonal Cover Code, referred to as OCC) to carry out code division multiplexing.
Preferably, the orthogonal mask using can be [+1 ,+1] or [+1 ,-1].
Preferably, the orthogonal mask that measuring reference signals 1 and measuring reference signals 2 are used is [+1 ,-1]; Or, the orthogonal mask of indicating measuring reference signals 1 and measuring reference signals 2 to use by signaling.
Preferably, measuring reference signals 1 and the transmission bandwidth of measuring reference signals 2, the cyclic shift value using, frequency comb are identical.
Preferably, measuring reference signals 1 and the spendable cyclic shift of measuring reference signals 2 have 8,12 or 16, and spendable frequency comb quantity is 2,3 or 4.
Below in conjunction with preferred embodiment, the present embodiment is described in detail.
Preferred embodiment one
Base station sends control information to UE, is used to indicate UE and sends SRS.Wherein, control information can be Downlink Control Information and/or high-level signaling, comprising: send SRS time-domain position indication information, send bandwidth, cyclic shift index value, the value of RPF, the frequency comb position that UE uses.
Wherein, the time-domain position indication information that sends SRS can be 1 bit, 2 bits or 3 bits, is used to indicate the time-domain position of UE transmission SRS, and this time-domain position is the time-domain position at two up DMRS symbol places; Cyclic shift index value is 3 bits or 4 bits, is used to indicate the cyclic shift using when UE sends SRS, and value can be 8,12 or 16; The value of RPF is 1 bit or 2 bits, and value can be 2 or 3 or 4; The frequency comb position that UE uses adopts 1 bit or 2 bits, and corresponding span is 0 to 1 or 0 to 3 respectively.
UE is according to the signaling instruction of base station, on two up DMRS symbol time-domain positions that send subframe, send measuring reference signals 1 and measuring reference signals 2 simultaneously, wherein, the value of measuring reference signals 1 and the transmission bandwidth of measuring reference signals 2, the cyclic shift value using, RPF, frequency comb position that UE uses are identical.
Preferred embodiment two
Base station sends control information to UE, be used to indicate UE and send SRS, wherein, this control information can be Downlink Control Information and or high-level signaling, comprising: send SRS time-domain position indication information, send bandwidth, cyclic shift index value, the value of RPF, the frequency comb position that UE uses.
Wherein, the time-domain position indication information that sends SRS can be 1 bit, 2 bits or 3 bits, be used to indicate the time-domain position that UE sends SRS, this time-domain position is the time-domain position at two up DMRS symbol places and the time-domain position at last data symbol place; Cyclic shift index value is 3 bits or 4 bits, is used to indicate the cyclic shift using when UE sends SRS, and value can be 8,12 or 16; The value of RPF is 1 bit or 2 bits, and value can be 2 or 3 or 4; The frequency comb position that UE uses adopts 1 bit or 2 bits, and span is 0 to 3.
UE, according to the signaling instruction of base station, sends measuring reference signals 1, measuring reference signals 2 and measuring reference signals 3 on two up DMRS symbol time-domain positions of transmission subframe and the time-domain position at last data symbol place simultaneously.Wherein, the value of the transmission bandwidth of measuring reference signals 1, measuring reference signals 2 and measuring reference signals 3, the cyclic shift value using, RPF, frequency comb position that UE uses are identical.
In sum, pass through the above embodiment of the present invention, solve in the LTE-A system of prior art the problem that when many antennas send SRS, number of users declines, increased the quantity of SRS resource available in LTE-A system, improved the number of users that can hold in LTE-A system.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (16)
1. a sending method for measuring reference signals, is characterized in that, comprises the following steps:
Terminal receives the indication information that base station sends; And
Described terminal sends the first measuring reference signals and the second measuring reference signals on two orthogonal frequency division multiplex OFDM symbols respectively in a subframe of described indication information instruction simultaneously to described base station, wherein, also comprise: measuring reference signals and aperiodic measuring reference signals in the case of in the cycle are configured in same subframe transmission, described terminal only sends described aperiodic measuring reference signals, or described terminal sends measuring reference signals and the described aperiodic measuring reference signals in described cycle simultaneously.
2. method according to claim 1, is characterized in that, two uplink demodulation reference signal symbols that described two OFDM symbols are described subframe.
3. method according to claim 1, it is characterized in that, also comprise: described terminal, in sending described the first measuring reference signals and described the second measuring reference signals, sends the 3rd measuring reference signals on last OFDM symbol of the described subframe of indicating at described indication information.
4. according to the method in any one of claims 1 to 3, it is characterized in that, two OFDM symbols in described the first measuring reference signals and described the second measuring reference signals and described two uplink demodulation reference signals or other OFDM symbols of described subframe adopt orthogonal mask to carry out code division multiplexing.
5. method according to claim 4, is characterized in that, described orthogonal mask is: [+1 ,+1] or [+1 ,-1].
6. method according to claim 4, is characterized in that, the orthogonal mask that the first measuring reference signals and described the second measuring reference signals are used described in described terminal is indicated by signaling in described base station.
7. according to the method in any one of claims 1 to 3, it is characterized in that, the reference signal sequence that the frequency domain of described the first measuring reference signals and described the second measuring reference signals sends position, use is identical.
8. according to the method in any one of claims 1 to 3, it is characterized in that, the transmission bandwidth of described the first measuring reference signals and described the second measuring reference signals, the cyclic shift value using are identical with frequency comb.
9. method according to claim 8, is characterized in that, the cyclic shift value that described the first measuring reference signals and described the second measuring reference signals can be used has 8,12 or 16.
10. method according to claim 8, is characterized in that, the quantity of the frequency comb that described the first measuring reference signals and described the second measuring reference signals can be used is 2,3 or 4.
11. according to the method in any one of claims 1 to 3, it is characterized in that, receive the described indication information of described base station transmission in described terminal before, also comprise: described base station configures the time-domain position of described terminal transmission measuring reference signals, and send described indication information to described terminal, wherein, two orthogonal frequency division multiplex OFDM symbols that described time-domain position is described subframe and/or last OFDM symbol of described subframe.
12. according to the method in any one of claims 1 to 3, it is characterized in that, described indication information is indicated by Downlink Control Information or high-level signaling.
The transmitting system of 13. 1 kinds of measuring reference signals, comprises base station and terminal, it is characterized in that,
Described base station comprises: the first sending module, and for sending indication information to described terminal, wherein, described indication information is used to indicate the time-domain position of described terminal transmission measuring reference signals;
Described terminal comprises: receiver module, for receiving described indication information; The second sending module, for send the first measuring reference signals and the second measuring reference signals to described base station respectively on two orthogonal frequency division multiplex OFDM symbols of a subframe of described indication information instruction simultaneously, wherein, described the second sending module, also be configured in same subframe transmission for measuring reference signals and aperiodic measuring reference signals in the case of in the cycle, described terminal only sends described aperiodic measuring reference signals, or described terminal sends measuring reference signals and the described aperiodic measuring reference signals in described cycle simultaneously.
14. systems according to claim 13, is characterized in that, described base station also comprises: configuration module, and for configuring the time-domain position of described terminal transmission measuring reference signals.
15. systems according to claim 14, it is characterized in that, the time-domain position that described configuration module is used for two uplink demodulation reference signal symbol places that configure described subframe is the time-domain position that described terminal sends described the first measuring reference signals and described the second measuring reference signals, wherein, whether described indication information is used to indicate on the time-domain position at two uplink demodulation reference signal symbol places of described subframe and sends measuring reference signals, or described indication information is used to indicate the time-domain position at described two uplink demodulation reference signal symbol places.
16. according to claim 13 to the system described in any one in 15, it is characterized in that, described the second sending module also for sending the 3rd measuring reference signals in sending described the first measuring reference signals and described the second measuring reference signals on last OFDM symbol of the described subframe of described indication information instruction.
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| CN201010110955.4A CN101795145B (en) | 2010-02-08 | 2010-02-08 | Sending method and system for measuring reference signals |
| PCT/CN2010/077040 WO2011095009A1 (en) | 2010-02-08 | 2010-09-17 | Method and system for transmitting sounding reference signals |
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| CN101795145B (en) * | 2010-02-08 | 2014-11-05 | 中兴通讯股份有限公司 | Sending method and system for measuring reference signals |
| CN106059737B (en) | 2010-06-04 | 2019-12-03 | Lg电子株式会社 | Send the user equipment and its method of non-periodic detection reference signal |
| CN106059736B (en) * | 2010-06-04 | 2019-06-14 | Lg电子株式会社 | Send the user equipment and its method of non-periodic detection reference signal |
| CN102378216B (en) * | 2010-08-06 | 2014-05-14 | 普天信息技术研究院有限公司 | Method for transmitting uplink sounding reference signal |
| CN102377714A (en) * | 2010-08-12 | 2012-03-14 | 普天信息技术研究院有限公司 | Method and device for enhancing uplink sounding reference signal |
| CN101917765B (en) * | 2010-08-13 | 2015-09-16 | 中兴通讯股份有限公司 | A kind of collocation method of measuring reference signals and system |
| CN102083033B (en) * | 2010-09-13 | 2016-08-03 | 电信科学技术研究院 | Aperiodic detection reference signal transmission instruction and transmission method, equipment |
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