CN107846268A - Processing method, user equipment and the evolved node B of detection reference signal - Google Patents

Processing method, user equipment and the evolved node B of detection reference signal Download PDF

Info

Publication number
CN107846268A
CN107846268A CN201610835238.5A CN201610835238A CN107846268A CN 107846268 A CN107846268 A CN 107846268A CN 201610835238 A CN201610835238 A CN 201610835238A CN 107846268 A CN107846268 A CN 107846268A
Authority
CN
China
Prior art keywords
srs
symbols
frame
sub
uplink
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201610835238.5A
Other languages
Chinese (zh)
Inventor
田涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xinwei Telecom Technology Inc
Original Assignee
Beijing Xinwei Telecom Technology Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xinwei Telecom Technology Inc filed Critical Beijing Xinwei Telecom Technology Inc
Priority to CN201610835238.5A priority Critical patent/CN107846268A/en
Publication of CN107846268A publication Critical patent/CN107846268A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses a kind of processing method of detection reference signal, user equipment and evolved node B.Exemplary, the transmission processing method of detection reference signal includes：By two continuous single-carrier frequency division multiple access access SC FDMA symbols in a sub-frame of uplink, detection reference signal SRS symbols are configured to；The sub-frame of uplink with the configured SRS symbols is sent, so that evolved node B carries out channel estimation.Processing method, user equipment and the evolved node B of detection reference signal provided in an embodiment of the present invention cause SRS to can adapt to the application scenarios of maximum Doppler frequency shift.

Description

Processing method, user equipment and the evolved node B of detection reference signal
Technical field
The present embodiments relate to mobile communication technology field, more particularly to a kind of processing method of detection reference signal, User equipment and evolved node B.
Background technology
Because in the LTE network of typical load, in order to ensure the SRS launching opportunities of each user, it is impossible to single user The broadband close to the configuration of system transmitted bandwidth is distributed to launch SRS, but distributes multiple different SRS transmitting symbols, each SRS Launch the complementary narrower frequency band of symbol distribution, multiple complementary narrower frequency bands could be obtained to the spy in broadband later altogether Measurement information, it is related that this, which just needs the channel of each SRS transmittings symbol,.
LTE user equipmenies high-speed mobile can produce larger Doppler frequency shift.With 2GHz carrier frequencies, 350km/h user Exemplified by translational speed, up-Doppler frequency shift (FS) is up to 1296Hz.So big frequency shift (FS) can cause channel coherency time Less than 1ms.For FDD LTE, SRS transmitting symbols are last SC-FDMA symbol of sub-frame of uplink, and former and later two SRS are sent out The minimum interval for penetrating symbol is 1ms, and channel is incoherent.For TDD LTE, point 3 kinds of situations：(1) SRS transmittings symbol is Last SC-FDMA symbol of Normal sub-frame of uplink, the minimum interval of former and later two SRS transmitting symbols is 1ms, and channel is It is incoherent；(2) SRS launches symbol as a UpPTS SC-FDMA symbol and last SC-FDMA symbols of sub-frame of uplink Number, former and later two SRS transmitting mark spaces are more than or equal to 1ms, and channel is incoherent；(3) it is UpPTS's that SRS, which launches symbol, Two SC-FDMA symbols, channel are related.
As a whole, for FDD LTE sub-frame of uplink and TDD LTE Normal sub-frame of uplink, minimum SRS weeks at present Phase configures, it is impossible to meets the needs of the broad-band channel detection of multi-user and maximum Doppler frequency shift situation.In 3GPP LTE-A, make The main application that channel information is obtained with SRS is coordinate multipoint, and TDD also has dual-layer beam forming, it is necessary to the letter of each consumer wideband Road information ensures the actual effect of these applications, if the incoherent SRS of channel produces the channel of whole frequency band before and after utilizing Information, these resource allocation deviation theories applied are caused to be expected because SRS above can not react newest channel condition.
The content of the invention
For above-mentioned technical problem, the embodiments of the invention provide a kind of processing method of detection reference signal, Yong Hushe Standby and evolved node B, to cause SRS to adapt to the application scenarios of maximum Doppler frequency shift.
In a first aspect, the embodiments of the invention provide a kind of transmission processing method of detection reference signal, applied to user Equipment, methods described include：
By two continuous single-carrier frequency division multiple access access SC-FDMA symbols in a sub-frame of uplink, it is configured to detect Reference signal SRS symbols；
The sub-frame of uplink with the configured SRS symbols is sent, to carry out channel estimation.
Second aspect, the embodiment of the present invention additionally provide a kind of receiving handling method of detection reference signal, applied to drilling Enter type node B, methods described includes：
According to configuration information, two continuous single-carrier frequency division multiple access access SC-FDMA in a sub-frame of uplink are received Detection reference signal SRS in symbol；
Channel estimation is carried out according to the SRS received.
The third aspect, the embodiment of the present invention additionally provide a kind of user equipment, and the user equipment includes：
Configuration module, for two continuous single-carrier frequency division multiple access access SC-FDMA in a sub-frame of uplink to be accorded with Number, it is configured to detection reference signal SRS symbols；
Sending module, for sending the sub-frame of uplink with the configured SRS symbols, so that evolved node B enters Row channel estimation.
Fourth aspect, the embodiment of the present invention additionally provide a kind of evolved node B, and the evolved node B includes：
Receiving module, for according to configuration information, it is more to receive two continuous single carrier frequency divisions in a sub-frame of uplink Detection reference signal SRS in location access SC-FDMA symbols；
Estimation module, for carrying out channel estimation according to the SRS received.
Processing method, user equipment and the evolved node B of detection reference signal provided in an embodiment of the present invention, by adopting By the use of in time domain two continuous SC-FDMA symbols as SRS symbols, carry out channel detection, improve in channel estimation twice The time domain density of the SRS signal used so that SRS more adapts to the application scenarios of maximum Doppler frequency shift.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, of the invention is other Feature, objects and advantages will become more apparent upon：
Fig. 1 is the flow chart of the transmission processing method for the detection reference signal that first embodiment of the invention provides；
Fig. 2 is the flow that operation is configured in the transmission processing method for the detection reference signal that second embodiment of the invention provides Figure；
Fig. 3 is the resource allocation design sketch for the configuration operation that second embodiment of the invention provides；
Fig. 4 is the flow that operation is configured in the transmission processing method for the detection reference signal that third embodiment of the invention provides Figure；
Fig. 5 is the resource allocation design sketch for the configuration operation that third embodiment of the invention provides；
Fig. 6 is the flow that operation is configured in the transmission processing method for the detection reference signal that fourth embodiment of the invention provides Figure；
Fig. 7 is the resource allocation design sketch for the configuration operation that fourth embodiment of the invention provides；
Fig. 8 is the flow chart of the receiving handling method for the detection reference signal that fifth embodiment of the invention provides；
Fig. 9 is the flow that operation is estimated in the receiving handling method for the detection reference signal that sixth embodiment of the invention provides Figure；
Figure 10 is the structure chart for the user equipment that seventh embodiment of the invention provides；
Figure 11 is the structure chart for the evolved node B that eighth embodiment of the invention provides.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that in order to just Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
First embodiment
Present embodiments provide a kind of technical scheme of the transmission processing method of detection reference signal.In the technical scheme In, the transmission processing method of the detection reference signal is performed by user equipment (User equipment, UE).
Referring to Fig. 1, the transmission processing method of the detection reference signal includes：
S11, two continuous single-carrier frequency division multiple access in a sub-frame of uplink are accessed into SC-FDMA symbols, are configured to Detection reference signal SRS symbols.
In the present embodiment, UE sends SRS symbols on two continuous SC-FDMA symbols.Due to hair as use Send processing mode, the transmission time interval between two SRS symbols is only a SC-FDMA symbol period, therefore so that two The channel that SRS symbols are detected is closely related on time dimension.In other words, the time domain density of SRS symbols is improved, so as to protect Demonstrate,prove under high mobility scene, can overcome as the uncertainty of the SRS channel detections caused by maximum Doppler frequency shift.
It is understood that SRS symbols are sent on two continuous SC-FDMA symbols, it is necessary to increase specific SRS newly Cycle and corresponding SRS configuration indexs.That is, it is necessary to the newly-increased cycle for 1SC-FDMA symbols the UE specific SRS cycles and Corresponding SRS configuration indexs, cycle represent that consistent with the method for expressing of configuration index 0 in table 1, configuration index is specifically retouched with 2 State for：
For TDD-LTE, later UE specific SRS cycles and sub-frame offset configuration are updated as shown in table 1 and table 2：
Table 1
SRS configuration indexs ISRS SRS cycle TsSRS(ms) SRS offsets Toffset
0 2 0,1
1 2 0,2
2 2 1,2
3 2 0,3
4 2 1,3
5 2 0,4
6 2 1,4
7 2 2,3
8 2 2,4
9 2 3,4
10–14 5 ISRS–10
15–24 10 ISRS–15
25–44 20 ISRS–25
45–84 40 ISRS–45
85–164 80 ISRS–85
165–324 160 ISRS–165
325–644 320 ISRS–325
645-647 2 ISRS–643
648–1023 Retain Retain
Table 2
SRS configuration indexs ISRS SRS cycle TsSRS,1(ms) SRS offsets Toffset,1
0 Retain Retain
1 2 0,2
2 2 1,2
3 2 0,3
4 2 1,3
5 2 0,4
6 2 1,4
7 2 2,3
8 2 2,4
9 2 3,4
10–14 5 ISRS–10
15–24 10 ISRS–15
25–28 Retain Retain
29-31 2 ISRS–27
Wherein, the SRS cycles shown in table 1 and sub-frame offset configuration are applied to the business of Trigger Type 0, and in table 2 The SRS cycles shown and sub-frame offset configuration are applied to the business of Trigger Type 1.
And the SRS cycles and sub-frame offset after FDD-LTE renewals are configured as shown in table 3 and table 4：
Table 3
SRS configuration indexs ISRS SRS cycle TsSRS(ms) SRS offsets Toffset
0–1 2 ISRS
2–6 5 ISRS–2
7–16 10 ISRS–7
17–36 20 ISRS–17
37–76 40 ISRS–37
77–156 80 ISRS–77
157–316 160 ISRS–157
317–636 320 ISRS–317
637-638 2 ISRS–637
639–1023 Retain Retain
Table 4
The SRS cycles meet following condition for the transmitting SRS of 1SC-FDMA symbols sub-frame of uplink：
For TDD, the sub-frame of uplink for launching SRS needs to meet equation below (1)：
Wherein, kSRSRepresent the sub-frame of uplink call number in radio frames, ToffsetAnd Toffset,1Trigger is represented respectively The SRS of type 0 and the situations of trigger type 1 is offset.Further preferable, selection meets the up of above formula condition Most latter two SC-FDMA symbol in subframe configures the SRS symbols.
For FDD, the sub-frame of uplink for launching SRS needs to meet equation below (2)：
Wherein, nfRepresent wireless frame index, kSRSRepresent the sub-frame of uplink call number in radio frames, ToffsetAnd Toffset,1Point Not Biao Shi trigger type 0 and the situations of trigger type 1 SRS skew, TSRSAnd TSRS, 1Represent respectively Trigger type 0 and the situations of trigger type 1 the SRS cycles.
Moreover, two continuous SRS symbols complementations on frequency domain in time domain.Specifically, complementary meaning is：At two The merging frequency of continuous SRS symbols can cover the wideband frequency for needing to detect on domain.Need two continuous SRS symbols frequencies Rate changes, and is realized by frequency hopping, this is by the frequency indices parameter n in equation below (3)bTo realize.
The frequency initial point position k of the SRS symbols0Determined according to equation below (3)：
Wherein,mSRS,bAccording to cell-specific parameters CSRSAnd UE special parameters BSRSIt is determined that.
Also, wherein For RB number corresponding to upstream bandwidth, kTC Comb parameters value for setting is 0 or 1.
Also, if not frequency hoppingFor fixed value, wherein nRRCFor the UE frequency locations of setting, Nb According to cell-specific parameters CSRSAnd UE special parameters BSRSIt is determined that；Determined if frequency hopping by equation below (4)：
F in formula (4)b(nSRS) determined by equation below (4-1)：
N in formula (4-1)SRSDetermined by equation below (4-2)：
Wherein, NSPRepresent up in a radio frames and number of descending switching point, nfRepresent system wireless frame number, nsTable Show the timeslot number in radio frames, TSRSRepresent SRS cycles, ToffsetRepresent SRS skew, Toffset_maxRepresent that SRS is inclined The maximum of shifting.
The frequency initial point position of SRS symbols is determined according to above-mentioned formula, and according to cell-specific parameters CSRSAnd UE Special parameter BSRSThe SRS resource block number mesh in sub-frame of uplink is determined, finally determines the resource block index of the SRS symbols.
It should be noted that the subframe for sending SRS symbols should be to be 1SC-FDMA symbols in the previously described SRS cycles Number transmitting SRS sub-frame of uplink, meet formula (5-1) and (5-2).
For TDD, equation below (5-1) should be met by launching SRS sub-frame of uplink：
For FDD, equation below (5-2) should be met by launching SRS sub-frame of uplink：
In formula (5-1) and (5-2), nfRepresent wireless frame index, kSRSRepresent the sub-frame of uplink index in radio frames Number, ToffsetAnd Toffset,1The SRS skew of trigger type 0 and the situations of trigger type 1, T are represented respectivelySRSWith TSRS, 1The SRS cycles of trigger type 0 and the situations of trigger type 1 are represented respectively.
S12, the sub-frame of uplink with the configured SRS symbols is sent, to carry out channel estimation.
After the configuration for completing SRS symbols continuous to above-mentioned two, by with the SRS symbols being configured Sub-frame of uplink is sent to the evolved node B of access network side, to help the evolved node B to complete channel estimation.
Because the time interval between two continuous SRS symbols is only the time interval of a SC-FDMA symbol, because This, the technical scheme provided using the present embodiment can overcome the Doppler frequency shift that high mobility is brought, and allow the detection of SRS twice Channel time domain is related.
Exemplified by using conventional cyclic prefix (Cyclic prefix, CP), between the time between two SC-FDMA symbols Every be spaced between two original sub-frame of uplink 1/14.If using extension CP, between two SC-FDMA symbols when Between interval be 1/12 of time interval between two original sub-frame of uplink.It means that the skill provided using the present embodiment Art scheme, it would be preferable to support Doppler frequency shift be original 14 times, or 12 times.
The present embodiment by the way that two continuous SC-FDMA symbols in a sub-frame of uplink are configured into SRS symbols, and The sub-frame of uplink with the configured SRS symbols is sent, improves the time domain of the SRS signal used in channel estimation twice Density so that SRS more adapts to the application scenarios of maximum Doppler frequency shift.
Second embodiment
The present embodiment further provides the transmission of the detection reference signal based on first embodiment of the invention A kind of technical scheme of operation is configured in processing method.In the technical scheme, newly-increased SRS configuration indexs correspond to TDD Configuration index 29 under configuration index 645 under LTE Trigger Type 0, or TDD LTE Trigger Type 1.
Referring to Fig. 2, by two continuous SC-FDMA symbols in a sub-frame of uplink, being configured to SRS symbols includes：
S21, determine that SRS cycles and SRS are offset according to SRS configuration indexs.
In the present embodiment, system bandwidth is configured to 10MHz, using conventional CP, ratio of uplink subframe to downlink subframe 0.Small zone Wide configuration parameter CSRSValue be 0, UE band width configuration parameters BSRSValue be 1.SRS frequency hopping bandwidth bhopValue be 0, Frequency domain position parameter nRRCValue be 0, comb-like transmission parameter KTCValue be 0.
Under above-mentioned configuration, corresponding sub-frame offset ToffsetValue be 2.
S22, offset according to SRS cycles and SRS, configured with reference to cell-level SRS, determine that user equipment is launched SRS sub-frame of uplink.
Being calculated according to formula (5-1) to obtain, and the subframe that subframe number is 2 and 7 is used to send SRS symbols.
Further, provided according to formula (3), each SC-FDMA symbols SRS frequency original position by formula (6)：
k0=k0′+12×48×n0+12×24×n1 (6)
Wherein, k0' value be 12.Parameter nbProvided by equation below (8)：
S23, determine resource block number in a sub-frame of uplink.
Specifically, the resource block number in sub-frame of uplink is determined according to such as table 5 below：The SRS resource block number mesh of cell distribution For 48, the resource block number of user equipment transmitting SRS symbols is 24.
Table 5
S24, according to the resource block number, determine that the resource block of described two continuous SC-FDMA symbols indexes.
For the subframe symbol second from the bottom of subframe 2, nSRS=4nf, for the last symbol n of subframe 2SRS=4nf+ 1, for the subframe symbol n second from the bottom of subframe 7SRS=4nf+ 2, for the last symbol n of subframe 7SRS=4nf+2.According to Formula (3-1) can be with Fb(nSRS), n is then calculated according to formula (8)b, bring formula (7) into and calculate k0, it is then determined that for sending The resource block index of SRS SC-FDMA symbols, concrete outcome are shown in Table 6.
Table 6
Fig. 3 shows the resource allocation result of the present embodiment.Referring to Fig. 3, the symbol SRS frequency second from the bottom of same subframe Resource and last symbol SRS frequency resource non-overlapping copies, each SRS transmittings symbol use continuous 24 RB frequency resources, SRS is realized to utilize system bandwidth frequency resource to greatest extent.
The present embodiment by the way that two continuous SC-FDMA symbols in a sub-frame of uplink are configured into SRS symbols, and The sub-frame of uplink with the configured SRS symbols is sent, improves the time domain of the SRS signal used in channel estimation twice Density so that SRS more adapts to the application scenarios of maximum Doppler frequency shift.
3rd embodiment
The present embodiment further provides the transmission of the detection reference signal based on first embodiment of the invention A kind of technical scheme of operation is configured in processing method.In the technical scheme, newly-increased SRS configuration indexs correspond to TDD Configuration index 30 under configuration index 646 under LTE Trigger Type 0, or TDD LTE Trigger Type 1.
Referring to Fig. 4, by two continuous SC-FDMA symbols in a sub-frame of uplink, being configured to SRS symbols includes：
S41, determine that SRS cycles and SRS are offset according to SRS configuration indexs.
In the present embodiment, system bandwidth is configured to 15MHz, using conventional CP, ratio of uplink subframe to downlink subframe 1.Small zone Wide configuration parameter CSRSValue be 1, UE band width configuration parameters BSRSValue be 1.SRS frequency hopping bandwidth bhopValue be 0, Frequency domain position parameter nRRCValue be 65, comb-like transmission parameter KTCValue be 1.
Under above-mentioned parameter configuration, corresponding sub-frame offset value ToffsetValue be 3.
S42, offset according to SRS cycles and SRS, configured with reference to cell-level SRS, determine that user equipment is launched SRS sub-frame of uplink.
Being calculated according to formula (5-1) to obtain, and the subframe that subframe number is 3 and 8 is used to send SRS symbols.
According to formula (3), each SC-FDMA symbols SRS frequency original position is provided by formula (8)：
k0=k0′+12×64×n0+12×32×n1 (8)
Wherein, k0' value be 61, parameter nbProvided by equation below (9)：
In formula (9), parameter F1(nSRS) provided by equation below (10)：
S43, determine resource block number in a sub-frame of uplink.
Specifically, the resource block number in sub-frame of uplink is determined according to such as table 7 below：
Table 7
S44, according to the resource block number, determine that the resource block of described two continuous SC-FDMA symbols indexes.
Cyclic shift value n corresponding to subframe symbol second from the bottom in the present embodimentSRSCan be true according to equation below (11) It is fixed：
One position n of circulation corresponding to the last symbol of subframeSRSIt can be determined according to equation below (12)：
Can according to corresponding to determining SRS symbols such as table 8 below resource block：
Table 8
Fig. 5 shows the resource allocation result of the present embodiment.Referring to Fig. 5, the symbol SRS frequency second from the bottom of same subframe Resource and last symbol SRS frequency resource non-overlapping copies, realize SRS to whole system bandwidth frequency resource to greatest extent Utilize.
The present embodiment by the way that two continuous SC-FDMA symbols in a sub-frame of uplink are configured into SRS symbols, and The sub-frame of uplink with the configured SRS symbols is sent, improves the time domain of the SRS signal used in channel estimation twice Density so that SRS more adapts to the application scenarios of maximum Doppler frequency shift.
Fourth embodiment
The present embodiment further provides the transmission of the detection reference signal based on first embodiment of the invention A kind of technical scheme of operation is configured in processing method.In the technical scheme, newly-increased SRS configuration indexs correspond to TDD Configuration index 31 under configuration index 647 under LTE Trigger Type 0, or TDD LTE Trigger Type 1.
Referring to Fig. 6, by two continuous SC-FDMA symbols in a sub-frame of uplink, being configured to SRS symbols includes：
S61, determine that SRS cycles and SRS are offset according to SRS configuration indexs.
In the present embodiment, system bandwidth is configured to 20MHz, using conventional CP, ratio of uplink subframe to downlink subframe 0.Small zone Wide configuration parameter CSRSValue be 0, UE band width configuration parameters BSRSValue be 1.SRS frequency hopping bandwidth bhopValue be 0, Frequency domain position parameter nRRCValue be 0, comb-like transmission parameter KTCValue be 0.
Under above-mentioned parameter configuration, corresponding sub-frame offset value ToffsetValue be 4.
S62, offset according to SRS cycles and SRS, configured with reference to cell-level SRS, determine that user equipment is launched SRS sub-frame of uplink.
Being calculated according to formula (5-1) to obtain, and the subframe that subframe number is 4 and 9 is used to send SRS symbols.
According to formula (3), each SC-FDMA symbols SRS frequency enlightenment position is provided by formula (13)：
k0=k0′+12×96×n0+12×48×n1 (13)
S62, determine the resource block number in a sub-frame of uplink.
Specifically, the resource block according to corresponding to determining SRS symbols such as table 9 below：
Table 9
Wherein, k0' value be 24, parameter nbProvided by equation below (14)：
In formula (15), parameter F1(nSRS) provided by equation below (15)：
S63, according to the resource block number, determine that the resource block of described two continuous SC-FDMA symbols indexes.
For the symbol second from the bottom of subframe, just like the relation of formula (16)：
For the last symbol of subframe, just like the relation of formula (17)：
Can according to corresponding to determining SRS symbols such as table 10 below resource block：
Table 10
Fig. 6 shows the resource allocation result of the present embodiment.Referring to Fig. 6, the symbol SRS frequency second from the bottom of same subframe Resource and last symbol SRS frequency resource non-overlapping copies, realize SRS to whole system bandwidth frequency resource to greatest extent Utilize.
The present embodiment by the way that two continuous SC-FDMA symbols in a sub-frame of uplink are configured into SRS symbols, and The sub-frame of uplink with the configured SRS symbols is sent, improves the time domain of the SRS signal used in channel estimation twice Density so that SRS more adapts to the application scenarios of maximum Doppler frequency shift.
5th embodiment
Present embodiments provide a kind of technical scheme of the receiving handling method of detection reference signal.In the technical scheme In, the receiving handling method of the detection reference signal is performed by evolved node B (Evolved node B, eNB).
Referring to Fig. 8, the receiving handling method of the detection reference signal includes：
S81, according to configuration information, receive two continuous single-carrier frequency division multiple access access SC- in a sub-frame of uplink Detection reference signal SRS symbols in FDMA symbols.
In the present embodiment, SRS symbols are provided with two continuous SC-FDMA symbols in a sub-frame of uplink.Institute State SRS symbols and be mainly used in channel measurement.The SRS symbols are generally located on most latter two SC- in a sub-frame of uplink In FDMA symbols.Moreover, above-mentioned two SC-FDMA symbols have complementary frequency.
Due to two SC-FDMA symbols in sequential it is continuous mutually, time interval therebetween accords with for a SC-FDMA Number duration.Because the interval of the SC-FDMA symbols as SRS symbols in time is very small, by the two SRS symbols The signal detected has temporal strong correlation.Therefore, the present embodiment provide method can be applied to high mobility, The situation of maximum Doppler frequency shift, without because maximum Doppler frequency shift causes the channel of the front and rear detections of SRS twice uncorrelated.
In the present embodiment, the SRS symbols use frequency-hopping mode.Being additionally, since described two SC-FDMA symbols has Complementary frequency, by receiving continuous SC-FDMA symbols in above-mentioned two sequential, can complete the complete spy to target frequency Survey.
S82, channel estimation is carried out according to the SRS symbols received.
Preferably, the estimation performed for channel can be the estimation of the parameters such as the signal to noise ratio of channel.It is additionally, since described SRS symbols employ frequency-hopping mode, can be first right to each individually SRS symbols institute during estimating channel The frequency range answered carries out channel estimation, finally merges the estimated result of each frequency range, obtains estimating whole target frequency bands Count result.
It should be noted that when the configured SRS symbols and form 2/2A/2B PUCCH are in same up son Frame conflict, SRS will not be launched.
The present embodiment according to configuration information by receiving in a sub-frame of uplink in two continuous SC-FDMA symbols SRS symbols, and channel estimation is carried out according to the SRS symbols received, improve the SRS used in channel estimation twice The time domain density of signal so that SRS more adapts to the application scenarios of maximum Doppler frequency shift.
Sixth embodiment
The present embodiment further provides the reception of the detection reference signal based on fifth embodiment of the invention A kind of technical scheme of operation is estimated in processing method.In the technical scheme, letter is carried out according to the SRS symbols received Road estimation includes：It is corresponding to the SRS symbols respectively according to the SRS symbols in two received continuous SC-FDMA symbols The signal to noise ratio of channel estimated；The estimated result of two SRS symbols will be merged, obtain the estimation knot to full bandwidth Fruit.
Referring to Fig. 9, carrying out channel estimation according to the SRS symbols received includes：
S91, according to the SRS symbols in two received continuous SC-FDMA symbols, the signal to noise ratio of channel is entered respectively Row estimation.
In the present embodiment, the SRS symbols of reception use frequency-hopping mode.That is, there is complementary frequency band using multiple SRS symbols carry out target frequency bands channel detection.
Specifically, the evolved node B receives the SRS symbols, and root in multiple different resource block locations The channel estimation of corresponding frequency band is carried out according to the SRS symbols received.In the present embodiment, the channel estimation specifically refers to The estimation carried out to the signal to noise ratio parameter of channel.
S92, the estimated result of two SRS symbols will be merged, obtain the estimated result to full bandwidth.
After channel estimation is carried out to frequency range corresponding to its difference using two SRS symbols, by the estimation of each frequency range As a result merge, obtain the estimated result to full bandwidth.
The present embodiment is by the SRS symbols in the two continuous SC-FDMA symbols received, respectively to channel Signal to noise ratio is estimated, and the estimated result of two SRS symbols is merged, and obtains the estimated result to full bandwidth, realizes Utilize complete estimation of the frequency-hopping mode for target frequency bands.
7th embodiment
Present embodiments provide a kind of technical scheme of user equipment.In the technical scheme, referring to Figure 10, the user Equipment includes：Configuration module 101, and sending module 102.
The configuration module 101 is used to two continuous single-carrier frequency division multiple access in a sub-frame of uplink accessing SC- FDMA symbols, it is configured to detection reference signal SRS symbols.
The sending module 102 sends the sub-frame of uplink with the configured SRS symbols, to carry out channel estimation. When the configured SRS symbols conflict with form 2/2A/2B PUCCH in same sub-frame of uplink, SRS will not be launched.
Preferably, described two continuous SC-FDMA symbols are two continuous SC- last in the sub-frame of uplink FDMA symbols.
Preferably, described two continuous SC-FDMA symbols have complementary frequency.
Preferably, the time interval between described two continuous SC-FDMA symbols is a SC-FDMA symbol period.
Preferably, the configuration module 101 includes：Sub-frame offset determining unit, resource block number determining unit, Yi Jizi Source block indexes determining unit.
The sub-frame offset determining unit is used to determine that SRS cycles and SRS are offset according to SRS configuration indexs.
The resource block number determining unit is used to determine resource block number in a sub-frame of uplink.
The resource block index determining unit is used for according to the resource block number, determines described two continuous SC- The resource block index of FDMA symbols.
Preferably, the sub-frame of uplink meets formula (5-1) and formula (5-2).
8th embodiment
Present embodiments provide a kind of evolved node B technical scheme.It is described referring to Figure 11 in the technical scheme Evolved node B includes：Receiving module 111, and estimation module 112.
The receiving module 111 is used for according to configuration information, receives two continuous single carriers in a sub-frame of uplink Detection reference signal SRS symbols in frequency division multiple access access SC-FDMA symbols.
The estimation module 112 is used to carry out channel estimation according to the SRS symbols received.
Preferably, described two continuous SC-FDMA symbols are most latter two continuous SC-FDMA in the sub-frame of uplink Symbol.
Preferably, described two continuous SC-FDMA symbols have complementary frequency.
Preferably, the estimation module 112 includes：Estimation unit respectively, and result combining unit.
The SRS symbols that the estimation unit respectively is used in the two continuous SC-FDMA symbols received, respectively The signal to noise ratio of channel corresponding to the SRS symbols is estimated.
The result combining unit is used to that the estimated result of two SRS symbols will to be merged, and obtains estimating full bandwidth Count result.
Preferably, the sub-frame of uplink meets formula (5-1) and formula (5-2).
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art For, the present invention can have various changes and change.All any modifications made within spirit and principles of the present invention, it is equal Replace, improve etc., it should be included in the scope of the protection.

Claims (13)

  1. A kind of 1. transmission processing method of detection reference signal, applied to user equipment, it is characterised in that including：
    By two continuous single-carrier frequency division multiple access access SC-FDMA symbols in a sub-frame of uplink, detection reference is configured to Signal SRS symbols；
    The sub-frame of uplink with the configured SRS symbols is sent, to carry out channel estimation.
  2. 2. according to the method for claim 1, it is characterised in that described two continuous SC-FDMA symbols are described up Last two continuous SC-FDMA symbols in subframe.
  3. 3. according to the method for claim 2, it is characterised in that described two continuous SC-FDMA symbols have complementary Frequency.
  4. 4. according to the method for claim 3, it is characterised in that the time between described two continuous SC-FDMA symbols At intervals of a SC-FDMA symbol period.
  5. 5. according to the method for claim 4, it is characterised in that by two continuous SC-FDMA in a sub-frame of uplink Symbol, being configured to SRS symbols includes：
    SRS cycles and SRS skew are determined according to SRS configuration indexs；
    Offset according to SRS cycles and SRS, configured with reference to cell-level SRS, determine that user equipment transmitting SRS's is upper Row subframe；
    Determine to be used for the resource block number for launching SRS in a sub-frame of uplink；
    According to the resource block number, determine that the resource block of described two continuous SC-FDMA symbols indexes.
  6. 6. according to the method for claim 1, it is characterised in that the sub-frame of uplink meets equation below：
    For TDD,
    For FDD,
    Wherein, nfRepresent wireless frame index, kSRSRepresent the sub-frame of uplink call number in radio frames, ToffsetAnd Toffset,1Table respectively Show the SRS skew of trigger type 0 and the situations of trigger type 1, TSRSAnd TSRS, 1Trigger is represented respectively Type 0 and the situations of trigger type 1 the SRS cycles.
  7. A kind of 7. receiving handling method of detection reference signal, applied to evolved node B, it is characterised in that including：
    According to configuration information, two continuous single-carrier frequency division multiple access access SC-FDMA symbols in a sub-frame of uplink are received In detection reference signal SRS symbols；
    Channel estimation is carried out according to the SRS symbols received.
  8. 8. according to the method for claim 7, it is characterised in that described two continuous SC-FDMA symbols are described up Most latter two continuous SC-FDMA symbol in subframe.
  9. 9. according to the method for claim 8, it is characterised in that described two continuous SC-FDMA symbols have complementary Frequency.
  10. 10. according to the method for claim 9, it is characterised in that channel estimation is carried out according to the SRS symbols received Including：
    According to the SRS in two received continuous SC-FDMA symbols, letter is carried out to resource block corresponding to the SRS respectively Estimate in road；
    Two SRS channel estimation results will be merged, obtain the channel estimation results in broadband.
  11. 11. according to the method for claim 7, it is characterised in that the sub-frame of uplink meets equation below：
    For TDD,
    For FDD,
    Wherein, nfRepresent wireless frame index, kSRSRepresent the sub-frame of uplink call number in radio frames, ToffsetAnd Toffset,1Table respectively Show the SRS skew of trigger type 0 and the situations of trigger type 1, TSRSAnd TSRS, 1Trigger is represented respectively Type 0 and the situations of trigger type 1 the SRS cycles.
  12. A kind of 12. user equipment, it is characterised in that including：
    Configuration module, for two continuous single-carrier frequency division multiple access in a sub-frame of uplink to be accessed into SC-FDMA symbols, match somebody with somebody It is set to detection reference signal SRS symbols；
    Sending module, for sending the sub-frame of uplink with the configured SRS symbols, so that evolved node B carries out letter Estimate in road.
  13. A kind of 13. evolved node B, it is characterised in that including：
    Receiving module, for according to configuration information, receiving two continuous single-carrier frequency division multiple access in a sub-frame of uplink and connecing Enter the detection reference signal SRS in SC-FDMA symbols；
    Estimation module, for carrying out channel estimation according to the SRS symbols received.
CN201610835238.5A 2016-09-20 2016-09-20 Processing method, user equipment and the evolved node B of detection reference signal Withdrawn CN107846268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610835238.5A CN107846268A (en) 2016-09-20 2016-09-20 Processing method, user equipment and the evolved node B of detection reference signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610835238.5A CN107846268A (en) 2016-09-20 2016-09-20 Processing method, user equipment and the evolved node B of detection reference signal

Publications (1)

Publication Number Publication Date
CN107846268A true CN107846268A (en) 2018-03-27

Family

ID=61656862

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610835238.5A Withdrawn CN107846268A (en) 2016-09-20 2016-09-20 Processing method, user equipment and the evolved node B of detection reference signal

Country Status (1)

Country Link
CN (1) CN107846268A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020029289A1 (en) * 2018-08-10 2020-02-13 华为技术有限公司 Communication method, apparatus and system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102017453A (en) * 2008-05-07 2011-04-13 三菱电机株式会社 Antenna selection with frequency-hopped sounding reference signals
CN102017455A (en) * 2008-05-07 2011-04-13 三菱电机株式会社 Antenna selection with frequency-hopped sounding reference signals
CN103026650A (en) * 2010-07-26 2013-04-03 Lg电子株式会社 Method and device for transmitting extended uplink control information in wireless communication system
CN103270710A (en) * 2010-12-21 2013-08-28 株式会社泛泰 Method and apparatus for transmitting and receiving signals in wireless communication system
CN104871632A (en) * 2012-08-29 2015-08-26 阿尔卡特朗讯 Device discovery for device-to-device communication
WO2015142066A1 (en) * 2014-03-20 2015-09-24 엘지전자(주) Method for transmitting and receiving signal in wireless communication system and device therefor
CN105940709A (en) * 2014-01-29 2016-09-14 三星电子株式会社 Method and apparatus for reporting channel status in cellular radio communication system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102017453A (en) * 2008-05-07 2011-04-13 三菱电机株式会社 Antenna selection with frequency-hopped sounding reference signals
CN102017455A (en) * 2008-05-07 2011-04-13 三菱电机株式会社 Antenna selection with frequency-hopped sounding reference signals
CN103026650A (en) * 2010-07-26 2013-04-03 Lg电子株式会社 Method and device for transmitting extended uplink control information in wireless communication system
CN103270710A (en) * 2010-12-21 2013-08-28 株式会社泛泰 Method and apparatus for transmitting and receiving signals in wireless communication system
CN104871632A (en) * 2012-08-29 2015-08-26 阿尔卡特朗讯 Device discovery for device-to-device communication
CN105940709A (en) * 2014-01-29 2016-09-14 三星电子株式会社 Method and apparatus for reporting channel status in cellular radio communication system
WO2015142066A1 (en) * 2014-03-20 2015-09-24 엘지전자(주) Method for transmitting and receiving signal in wireless communication system and device therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020029289A1 (en) * 2018-08-10 2020-02-13 华为技术有限公司 Communication method, apparatus and system

Similar Documents

Publication Publication Date Title
CN111149300B (en) Method and apparatus for reference signal configuration
JP6300165B2 (en) COMMUNICATION DEVICE, REFERENCE SIGNAL RECEIVING METHOD, AND INTEGRATED CIRCUIT
CN110190896A (en) Transmitter, receiver, and the method for sending/receiving synchronization signal
AU2016434165A1 (en) Signal transmission method, terminal device and network device
CN110535607A (en) Detection reference signal design
CN110959267B (en) Method and device for data transmission
CN111684731A (en) Communication method, communication device and network device
US20130170441A1 (en) Sequence Derivation for Reference Signal Patterns
JP7118011B2 (en) BASE STATION, SYNCHRONIZATION SIGNAL TRANSMISSION METHOD, AND WIRELESS COMMUNICATION SYSTEM
CN104469926A (en) Transmission method and device in D2D system
CN105992221A (en) Frequency hopping method and device
US20220014332A1 (en) Methods, devices and computer readable medium for transmission of reference signal
CN107846268A (en) Processing method, user equipment and the evolved node B of detection reference signal
CN112136300B (en) Communication method, communication device and network device
US20170311192A1 (en) Method for measuring inter-device interference in wireless communication system supporting fdr transmission, and apparatus therefor
CN107453853B (en) Method and device for pilot frequency transmission
CN102377716B (en) Pre-compensation method and device for descending frequency offset of orthogonal frequency division multiple access (OFDMA) communication system
US9226183B2 (en) Reference signal measurement
KR102483481B1 (en) Method and apparatus for transmitting and receiving synchronizing signal in a communication system
KR20230091053A (en) Method and apparatus for radio signal transmission and reception in communication system
KR20230142376A (en) Method and apparatus for transmission and reception of synchronization signal havning layered structure in communication system
CN117527105A (en) Sensing method, sensing device, communication equipment and readable storage medium
KR20230091832A (en) Method and apparatus for radio signal transmission and reception in communication system
KR20230095032A (en) Method and apparatus for radio signal transmission and reception in communication system
CN117529964A (en) Method, apparatus and computer readable storage medium for communication

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20180327

WW01 Invention patent application withdrawn after publication