CN102547990A - Method and device for uplink sign interweaving and resource mapping - Google Patents
Method and device for uplink sign interweaving and resource mapping Download PDFInfo
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- CN102547990A CN102547990A CN2010106225439A CN201010622543A CN102547990A CN 102547990 A CN102547990 A CN 102547990A CN 2010106225439 A CN2010106225439 A CN 2010106225439A CN 201010622543 A CN201010622543 A CN 201010622543A CN 102547990 A CN102547990 A CN 102547990A
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Abstract
The invention provides a method for uplink sign interweaving and resource mapping. A terminal comprises at least two antennas and performs the following steps of: A, configuring an uplink signal subframe, and caching two adjacent time domain base band signs to be recorded as S0 and S1 on a configured uplink signal of a subframe when the time domain base band signal is generated; and B, sending the time domain base band sign S0 on the first antenna of the terminal, switching to the second antenna of the terminal and sending a time domain base band sign S1, switching to the first antenna and sending a minus conjugated signal -S1* of the time domain base band sign S1, and switching to the second antenna and sending a conjugated signal S0* of the time domain base band sign. The invention also provides a device for uplink sign interweaving and resource mapping. The method in the invention can also improve the gain of the uplink signal.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of up symbol interleaving and method for mapping resource and device.
Background technology
Broadband wireless moves access technology can provide big bandwidth applications for the user; But when providing high-speed radio to experience, along with the increase of bandwidth, user terminal faces no small challenge at technical elements; Wherein just comprise the challenge of path loss and link budget (building penetration loss etc.) aspect.
Compare with existing narrowband systems, broadband technology does not have revolutionary breakthrough aspect spectrum efficiency.If narrowband systems (8kbps) and broadband system (is example with 512kbps), bandwidth differ 512/8=64 doubly, need increase by the link budget of 10 * lg64=18dB in other words at least; If receiving sensitivity constant (technical limitations), the link budget of this part increase just need to rely on the increase transmitting power to compensate; Calculate with GSM terminal (8kbps) transmitting power 23dBm (200mw), wide-band terminal (512kbps) is if will reach same coverage, and its transmitting power just need reach 200mW * 64=12.8W.
Because wide-band terminal receives power consumption, the restriction of multiple factors such as volume and cost, if only depend on power back-off, cost, reliability still be aspect such as environmental protection all be unacceptable; In addition, broadband system all exists at multipath channel (frequency selective fading) and presence of intercell interference aspects such as (identical networkings of broadband system) than narrowband systems complicated problems more.
The restriction of removal system capacity and communication system aspect is the compensating for path loss, improves up covering, generally can adopt technology such as Low Bit-rate Coding, spread spectrum.Low Rate Code Technology is sent same information and will be taken more resources through reducing encoder bit rate, thereby obtains coding gain; Spread spectrums such as spread spectrum in upright arrangement can obtain spreading gain through taking bigger frequency range.
But, only rely on to reduce code check, when code check is reduced to a certain degree, the change in gain that complicated coded system can be brought is also not obvious, but processing complexity can improve; The gain that spread spectrum in upright arrangement brings need utilize bigger bandwidth resources, for the broadband system of present employing OFDMA multi-access mode (like LTE etc.), if utilize CDMA can have multi-user interference (MUI); Cover if only utilize spreading gain to improve, there is the resource efficiency problem again in promptly non-multiple access spread spectrum.
Summary of the invention
The invention provides a kind of up symbol interleaving and method for mapping resource and device, under the limited condition of terminal transmitted power, improve the covering of upward signal; Compare with Low Rate Code Technology, the gain of acquisition is more remarkable, and realizes simple.
The embodiment of the invention proposes the method for a kind of up symbol interleaving and resource mapping, and the terminal comprises at least two antennas, and following steps are carried out at the terminal:
A, collocating uplink signal subframe, to the upward signal of the sub-frame that configured, when generating the time domain baseband signal, two adjacent time domain baseband signallings of buffer memory are designated as S0 and S1;
B, on first antenna at terminal, send time domain baseband signalling S0; Switch to second antenna at terminal and send time domain baseband signalling S1; Switch to first antenna and send negative conjugated signal-S1 of time domain baseband signalling S1
*And switch to second antenna and send the conjugated signal S0 of time domain baseband signalling
*
Preferably, before the said steps A, further comprise:
The base station disposes the number of repetition of ability compensation terminal path loss according to the actual path loss situation in terminal, and corresponding uplink authorization is sent to the terminal;
The said generation time domain of steps A baseband signal comprises: after uplink authorization is received at the terminal, generate the time domain baseband signal of upward signal according to the link circuit self-adapting limit configuration of this uplink authorization.
Preferably, the said generation time domain of steps A baseband signal further comprises: adopt the single-carrier frequency division multiple access method, and the frequency-region signal of each up symbol is first through discrete Fourier transform, and then do inverse fast fourier transform formation time domain single-carrier signal.
Preferably, the said collocating uplink signal of steps A subframe comprises: through reducing the mode of code check, the signal of two sub-frame is extended on 4 sub-frame.
Preferably, step B is said further comprises after switching to first antenna and sending negative conjugated signal-S1* of time domain baseband signalling S1: the reference signal of a time slot of first antenna transmission.
Preferably, step B is said further comprises after switching to second antenna and sending the conjugated signal S0* of time domain baseband signalling: the reference signal that switches to first antenna and send a time slot.
Preferably, step B said switch to second antenna at terminal and send further comprise after the time domain baseband signalling S1: the reference signal of on second antenna, sending a time slot;
And the said negative conjugated signal-S1 that switches to first antenna and send time domain baseband signalling S1 of step B
*For: the reference signal that switches to first antenna and send a time slot, negative conjugated signal-S1 of the time domain of redispatching baseband signalling S1
*
Preferably, this method further comprises:
C, base station according to the configuration at this terminal being carried out to received signal the symbol level decoding and being merged, recover the uplink information that send at this terminal when receiving upward signal.
Preferably, said step C comprises:
C1, base station utilize the reference signal that receives to do channel estimating and equilibrium;
C2, the symbol after the equilibrium is carried out deinterleaving and merge to handle.
The embodiment of the invention also proposes a kind of up symbol interleaving and resource mapping apparatus, and said device is positioned at end side, and said terminal comprises at least two antennas, and this device comprises:
Cache module is used for the upward signal for the good sub-frame of terminal configuration, and when generating the time domain baseband signal, two adjacent time domain baseband signallings of buffer memory are designated as S0 and S1;
Symbol interleaving and resource mapping block send time domain baseband signalling S0 on first antenna at terminal; Switch to second antenna at terminal and send time domain baseband signalling S1; Switch to first antenna and send negative conjugated signal-S1 of time domain baseband signalling S1
*And switch to second antenna and send the conjugated signal S0 of time domain baseband signalling
*
Preferably, said device further comprises:
Time domain baseband signal generation module is used to receive the uplink authorization from the base station, generates the time domain baseband signal of upward signal according to the link circuit self-adapting limit configuration of this uplink authorization.
Preferably, said time domain baseband signal generation module further comprises:
Time domain single carrier generation unit is used to adopt the single-carrier frequency division multiple access method, and the frequency-region signal of each up symbol is first through discrete Fourier transform, and then does inverse fast fourier transform formation time domain single-carrier signal.
Preferably, this device further comprises:
Code check reduces module, is used for through reducing the mode of code check, and the signal of two sub-frame is extended on 4 sub-frame, and the subframe after the said expansion is sent to said cache module.
Preferably, this device further comprises: the first reference signal configuration module is used for switching to first antenna and sending negative conjugated signal-S1 of time domain baseband signalling S1 at said symbol interleaving and resource mapping block
*Afterwards, in the reference signal of a time slot of first antenna transmission.
Preferably, this device further comprises: the second reference signal configuration module is used for switching to second antenna and sending the conjugated signal S0 of time domain baseband signalling at said symbol interleaving and resource mapping block
*Afterwards, the reference signal that switches to first antenna and send a time slot.
Preferably, this device further comprises: the 3rd reference signal configuration module, be used for after said symbol interleaving and resource mapping block switch to second antenna at terminal and send time domain baseband signalling S1, and on second antenna, send the reference signal of a time slot; And,
After said symbol interleaving and resource mapping block switch to first antenna, and send negative conjugated signal-S1 of time domain baseband signalling S1
*Before, in the reference signal of a time slot of first antenna transmission.
Can find out from above technical scheme, after the up time domain baseband signal of UE generates, according to the number of repetition of configuration, be one group with two time-domain symbol again, interweaves, and generates a repeating signal group; And on the different antennae port, alternately send the symbol in the repeating signal group respectively.When moving velocity of terminal is not high, when channel variation is slow, do the effect that can simulate space and time diversity like this.For a frame upstream data, when the link circuit self-adapting configuration adopts the maximum gain configuration still can't reach demodulation threshold, can adopt the present invention program further to improve the upward signal gain.
Description of drawings
Fig. 1 is the up symbol interleaving of embodiment of the invention proposition and the process chart of resource mapping;
Fig. 2 is the transfer process sketch map of substep 103-1 to 103-2;
Fig. 3 is the delivery plan of the reference signal of mapping mode 1;
Fig. 4 is the delivery plan of the reference signal of mapping mode 2;
Fig. 5 is the delivery plan of the reference signal of mapping mode 3;
Fig. 6 is an example of the up transmission signal at terminal.
Embodiment
The up transmission in terminal is owing to receive cost, the restriction of volume and power consumption, and the power amplifier of peanut is used in general expectation, and the while is furnished with many antennas in descending reception for supporting descending MIMO.In this case, a day line options transmission technology generally can be adopted in the terminal, promptly utilizes a power amplifier unit constantly to carry out uplink from different antennae in difference, to obtain space diversity gain.
The basic principle of the inventive method is following: for the terminal that disposes two antennas and a power amplifier, the port of these two antennas is remembered respectively and is made D0 and D1, when up transmission is carried out at the terminal, adopts following handling process:
To the upward signal of the sub-frame that configured, when generating the time domain baseband signal, two adjacent time domain baseband signallings of buffer memory are designated as S0 and S1; Earlier symbol S0 is sent on an antenna at terminal, for example send from D0, and buffer memory S0; Then symbol S1 is sent on another root antenna at terminal, for example send from D1, and buffer memory S1; Switch the concurrent feed signals-S1 of line D0 that saves the situation then
*Switch the concurrent feed signals S0 of line D1 that saves the situation again
*Here represent the conjugation of complex symbol * number.
According to upper type, constant at upstream bandwidth, but under the prerequisite that the time domain sending duration prolongs, obtain diversity gain through the space diversity mode.
Below through specific embodiment the present invention program is carried out further in detail setting forth.
In the embodiment of the invention, terminal (UE) disposes two antennas, but only disposed a power amplifier unit; For the terminal far away, when needs carry out up transmission, but when having reached the link circuit self-adapting configuration limit, can adopt this programme further to increase the ascending resource gain according to the indication of base station apart from the base station.
With the LTE/LTE-A system is example, and the handling process of up symbol interleaving that the embodiment of the invention proposes and resource mapping is as shown in Figure 1, comprises the steps:
Step 101: the base station is according to the actual path loss situation of UE, and configuration can compensate the number of repetition of UE path loss and corresponding uplink authorization (being designated as DCI F0) is sent to UE.
For tdd mode, said UE path loss situation can utilize measurement and report or reciprocity mechanism to obtain.
Which frequency spectrum resource said uplink authorization is used for indicating terminal at, on which time location, and adopts what kind of mode to carry out uplink.Wherein, number of repetition can be carried out various configurations according to the path loss situation, and the value of retransmitting number of times can be 2 power, is 2,4,8 etc. as retransmitting number of times.
After step 102:UE receives uplink authorization, generate the time domain baseband signal of upward signal according to the link circuit self-adapting limit configuration of this uplink authorization.
Below can compensate the UE path loss to configuration number of repetition be illustrated.For example; The path loss of UE is during greater than the corresponding gain of maximum link budget; The base station can indicate UE to adopt method of the present invention: when carrying out uplink at this terminal of scheduling, the uplink signal that the maximum link budget is corresponding doubles on time span or more time length again.The time span that doubles, then retransmitting number of times is 2, increasing by 3 times of time spans, then to retransmit number of times be 4.
For example, in the LTE/LTE-A system, upstream data is through baseband coding, and scrambling forms the time domain baseband signal after DFT conversion and the iFFT; Its code check and modulation system are confirmed by the MCS configuration parameter in the uplink authorization.
Step 103:UE generates the time domain baseband signal of upward signal; Configuration according to relevant number of repetition among the DCI F0; With two time-domain symbol is one group; The time domain baseband signal is carried out symbol interleaving obtain the repeating signal group, and on the different antennae port, alternately send the time-domain symbol in the repeating signal group respectively.
Substep 103-1: adopt single-carrier frequency division multiple access (SC-FDMA) method, the frequency-region signal of each up symbol is first through discrete Fourier transform (DFT), and then do inverse fast fourier transform (IFFT) formation time domain single-carrier signal.
Substep 103-2: through reducing the mode of code check, the signal of two sub-frame is extended on 4 sub-frame.
Be illustrated in figure 2 as the transfer process sketch map of above-mentioned substep 103-1 to 103-2.Frequency symbol during two sub-frame that will send up, abscissa is represented time domain, ordinate is represented frequency domain, S0 to S11 representes different time-domain symbol, dash area is represented reference signal (RS).
Substep 103-3: the symbol of adjacent two time slots is generated a repeating signal group, that is:
Substep 103-4: the repeating signal group is done resource mapping on two antenna ports of UE, and the symbol timesharing of adjacent time-slots is mapped on two antenna ports, that is:
The terminal is all made antenna and is switched when sending between each symbol; When moving velocity of terminal is not high, when channel variation is slow, do the effect that can simulate space and time diversity like this.
Owing on the different antennae port, carry out uplink, need on every antenna, send reference signal, reference signal can adopt multiple send mode.Fig. 3 to Fig. 5 shows a kind of reference signal sending method respectively.In the mapping mode 1 shown in Figure 3, at the 1st time slot, antenna port D0 sends time-domain symbol S0, and at the 2nd time slot, antenna port D1 sends time-domain symbol S1, and at 3-4 time slot, antenna port D0 sends time-domain symbol-S1 respectively
*And RS, at the 5th time slot, antenna port D1 sends time-domain symbol S0
*
Can find out; In the mapping mode 1; The transmission position of reference signal in time-domain is identical with the LTE/LTE-A uplink reference signals time-domain position of not adopting mode of the present invention, in the reference signal position of not carrying out the repetition subframe, sends reference signal by UE respectively through different antennae.
In the mapping mode 2 shown in Figure 4, the transmission position of reference signal in time-domain is different with LTE/LTE-A uplink reference signals time-domain position.Though it is similar with mapping mode 1; Also be to send reference signal respectively through different antennae by UE; But can try one's best near transmission for making repeating signal group (4 symbols); The character position of reference signal has been done the skew of a symbol forward or backward as required, so that the symbol in the upward signal group of sending sends continuously.
For improving measure and the method that channel estimation reliability and performance can also adopt multiple increase reference signal density, wherein a kind of optional reference signal configuration method mapping mode 3 as shown in Figure 5.In the mapping mode 3, the transmission position of reference signal in time-domain is different with LTE/LTE-A uplink reference signals time-domain position; Specific practice is on the time-domain adjacent symbol, sends reference signal by different antennae respectively.
Step 104: the base station according to the indication to the terminal uplink authorization, is handled the upward signal of different terminals respectively when receiving upward signal: to the terminal of adopting the inventive method to carry out uplink, execution in step 105; For the terminal of adopting prior art to carry out uplink, execution in step 106.
Step 105: the base station recovers the uplink information that this UE sends according to the configuration of this UE being carried out to received signal the symbol level decoding and being merged.
Step 105 can comprise following substep:
Substep 105-1: the base station utilizes the reference signal that receives to do channel estimating and equilibrium.
If the terminal number of transmit antennas is Nt, base station reception antenna number is Nr, according to the reference signal that the terminal different antennae is sent Nt * Nr dimension channel matrix is carried out channel estimating.
Substep 105-2: the symbol after the equilibrium is carried out deinterleaving handle with merging.
Because the application scenarios of ascending transmission method of the present invention generally all occurs in the bigger situation of path loss, the upward signal that the base station receives this terminal possibly be difficult to reach the signal to noise ratio/signal interference ratio of upward signal in the normal coverage in base station;
Here supposition adopts the moving velocity of terminal of ascending transmission method of the present invention lower, satisfies the demodulation requirement correlated time of channel;
At this moment, can handle in such a way:
If the up transmission signal at terminal is as shown in Figure 6.Correspondingly, antenna for base station i reception signal is:
t
0Constantly, r (t
0)=h
0, iS
0+ h
1, i0+n (t
0)
t
1Constantly, r (t
1)=h
0, i0+h
1, iS
1+ n (t
1)
t
2Constantly,
t
3Constantly,
Suppose that channel is quasi-static channel opens at t0 in the time to t3, then
t
0And t
1Constantly, r (t
0, t
1)=h
0, j(s
0+ 0)+h
1, j(0+s
1)+n (t
0, t
1)=h
0, jS
0+ h
1, jS
1+ n (t
0, t
1)
t
2And t
3Constantly,
Here the signal plus that at first can i root antenna be received at t0 and t1 constantly, and the signal plus that t2 and t3 are received constantly; Handle according to separating the STBC mode then.
Step 106: this upward signal of art methods demodulation is adopted in the base station.
The embodiment of the invention also proposes a kind of up symbol interleaving and resource mapping apparatus, and said device is positioned at end side, and said terminal comprises at least two antennas, and this device comprises:
Cache module is used for the upward signal for the good sub-frame of terminal configuration, and when generating the time domain baseband signal, two adjacent time domain baseband signallings of buffer memory are designated as S0 and S1;
Symbol interleaving and resource mapping block send time domain baseband signalling S0 on first antenna at terminal; Switch to second antenna at terminal and send time domain baseband signalling S1; Switch to first antenna and send negative conjugated signal-S1 of time domain baseband signalling S1
*And switch to second antenna and send the conjugated signal S0 of time domain baseband signalling
*
Preferably, said device further comprises:
Time domain baseband signal generation module is used to receive the uplink authorization from the base station, generates the time domain baseband signal of upward signal according to the link circuit self-adapting limit configuration of this uplink authorization.
Preferably, said time domain baseband signal generation module further comprises:
Time domain single carrier generation unit is used to adopt the single-carrier frequency division multiple access method, and the frequency-region signal of each up symbol is first through discrete Fourier transform, and then does inverse fast fourier transform formation time domain single-carrier signal.
Preferably, this device further comprises:
Code check reduces module, is used for through reducing the mode of code check, and the signal of two sub-frame is extended on 4 sub-frame, and the subframe after the said expansion is sent to said cache module.
Preferably, this device further comprises: the first reference signal configuration module is used for switching to first antenna and sending negative conjugated signal one S1 of time domain baseband signalling S1 at said symbol interleaving and resource mapping block
*Afterwards, in the reference signal of a time slot of first antenna transmission.
Preferably, this device further comprises: the second reference signal configuration module is used for switching to second antenna and sending the conjugated signal S0 of time domain baseband signalling at said symbol interleaving and resource mapping block
*Afterwards, the reference signal that switches to first antenna and send a time slot.
Preferably, this device further comprises: the 3rd reference signal configuration module, be used for after said symbol interleaving and resource mapping block switch to second antenna at terminal and send time domain baseband signalling S1, and on second antenna, send the reference signal of a time slot; And,
After said symbol interleaving and resource mapping block switch to first antenna, and send negative conjugated signal-S1 of time domain baseband signalling S1
*Before, in the reference signal of a time slot of first antenna transmission.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.
Claims (16)
1. the method for up symbol interleaving and resource mapping is characterized in that the terminal comprises at least two antennas, and following steps are carried out at the terminal:
A, collocating uplink signal subframe, to the upward signal of the sub-frame that configured, when generating the time domain baseband signal, two adjacent time domain baseband signallings of buffer memory are designated as S0 and S1;
B, on first antenna at terminal, send time domain baseband signalling S0; Switch to second antenna at terminal and send time domain baseband signalling S1; Switch to first antenna and send negative conjugated signal-S1 of time domain baseband signalling S1
*And switch to second antenna and send the conjugated signal S0 of time domain baseband signalling
*
2. method according to claim 1 is characterized in that, before the said steps A, further comprises:
The base station disposes the number of repetition of ability compensation terminal path loss according to the actual path loss situation in terminal, and corresponding uplink authorization is sent to the terminal;
The said generation time domain of steps A baseband signal comprises: after uplink authorization is received at the terminal, generate the time domain baseband signal of upward signal according to the link circuit self-adapting limit configuration of this uplink authorization.
3. method according to claim 2; It is characterized in that; The said generation time domain of steps A baseband signal further comprises: adopt the single-carrier frequency division multiple access method; The frequency-region signal of each up symbol is first through discrete Fourier transform, and then do inverse fast fourier transform formation time domain single-carrier signal.
4. method according to claim 3 is characterized in that, the said collocating uplink signal of steps A subframe comprises: through reducing the mode of code check, the signal of two sub-frame is extended on 4 sub-frame.
5. according to each described method of claim 1 to 4, it is characterized in that the said negative conjugated signal-S1 that switches to first antenna and send time domain baseband signalling S1 of step B
*Further comprise afterwards: the reference signal of a time slot of first antenna transmission.
6. according to each described method of claim 1 to 4, it is characterized in that the said conjugated signal S0 that switches to second antenna and send the time domain baseband signalling of step B
*Further comprise afterwards: the reference signal that switches to first antenna and send a time slot.
7. according to each described method of claim 1 to 4, it is characterized in that step B is said further to be comprised after switching to second antenna at terminal and sending time domain baseband signalling S1: the reference signal of on second antenna, sending a time slot;
And the said negative conjugated signal-S1 that switches to first antenna and send time domain baseband signalling S1 of step B
*For: the reference signal that switches to first antenna and send a time slot, negative conjugated signal-S1 of the time domain of redispatching baseband signalling S1
*
8. according to each described method of claim 1 to 4, it is characterized in that this method further comprises:
C, base station according to the configuration at this terminal being carried out to received signal the symbol level decoding and being merged, recover the uplink information that send at this terminal when receiving upward signal.
9. method according to claim 8 is characterized in that, said step C comprises:
C1, base station utilize the reference signal that receives to do channel estimating and equilibrium;
C2, the symbol after the equilibrium is carried out deinterleaving and merge to handle.
10. up symbol interleaving and resource mapping apparatus is characterized in that said device is positioned at end side, and said terminal comprises at least two antennas, and this device comprises:
Cache module is used for the upward signal for the good sub-frame of terminal configuration, and when generating the time domain baseband signal, two adjacent time domain baseband signallings of buffer memory are designated as S0 and S1;
Symbol interleaving and resource mapping block send time domain baseband signalling S0 on first antenna at terminal; Switch to second antenna at terminal and send time domain baseband signalling S1; Switch to first antenna and send negative conjugated signal-S1 of time domain baseband signalling S1
*And switch to second antenna and send the conjugated signal S0* of time domain baseband signalling.
11. device according to claim 10 is characterized in that, said device further comprises:
Time domain baseband signal generation module is used to receive the uplink authorization from the base station, generates the time domain baseband signal of upward signal according to the link circuit self-adapting limit configuration of this uplink authorization.
12. device according to claim 11 is characterized in that, said time domain baseband signal generation module further comprises:
Time domain single carrier generation unit is used to adopt the single-carrier frequency division multiple access method, and the frequency-region signal of each up symbol is first through discrete Fourier transform, and then does inverse fast fourier transform formation time domain single-carrier signal.
13., it is characterized in that this device further comprises based on the described device of claim 12:
Code check reduces module, is used for through reducing the mode of code check, and the signal of two sub-frame is extended on 4 sub-frame, and the subframe after the said expansion is sent to said cache module.
14. according to each described device of claim 10 to 13; It is characterized in that; This device further comprises: the first reference signal configuration module is used for switching to first antenna and sending negative conjugated signal-S1 of time domain baseband signalling S1 at said symbol interleaving and resource mapping block
*Afterwards, in the reference signal of a time slot of first antenna transmission.
15. according to each described device of claim 10 to 13; It is characterized in that; This device further comprises: the second reference signal configuration module is used for switching to second antenna and sending the conjugated signal S0 of time domain baseband signalling at said symbol interleaving and resource mapping block
*Afterwards, the reference signal that switches to first antenna and send a time slot.
16. according to each described device of claim 10 to 13; It is characterized in that; This device further comprises: the 3rd reference signal configuration module; Be used for after said symbol interleaving and resource mapping block switch to second antenna at terminal and send time domain baseband signalling S1, on second antenna, send the reference signal of a time slot; And,
After said symbol interleaving and resource mapping block switch to first antenna, and send negative conjugated signal-S1 of time domain baseband signalling S1
*Before, in the reference signal of a time slot of first antenna transmission.
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| WO2016033989A1 (en) * | 2014-09-04 | 2016-03-10 | 华为技术有限公司 | Information transmission method, user side device and network side device |
| CN108768599A (en) * | 2018-04-02 | 2018-11-06 | 中兴通讯股份有限公司 | Sending, receiving method and device, storage medium, the electronic equipment of uplink signal |
| CN112751796A (en) * | 2019-10-31 | 2021-05-04 | 华为技术有限公司 | Method and device for mapping and demapping reference signal sequence |
| CN113364498A (en) * | 2020-03-06 | 2021-09-07 | 上海朗帛通信技术有限公司 | Method and apparatus in a node used for wireless communication |
| WO2021175276A1 (en) * | 2020-03-06 | 2021-09-10 | 上海朗帛通信技术有限公司 | Method and device used in wireless communication node |
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| CN105580484A (en) * | 2014-09-04 | 2016-05-11 | 华为技术有限公司 | Information transmission method, user side device and network side device |
| US10244561B2 (en) | 2014-09-04 | 2019-03-26 | Huawei Technologies Co., Ltd. | Information transmission method, user-side device, and network-side device |
| CN108768599A (en) * | 2018-04-02 | 2018-11-06 | 中兴通讯股份有限公司 | Sending, receiving method and device, storage medium, the electronic equipment of uplink signal |
| CN108768599B (en) * | 2018-04-02 | 2022-08-19 | 中兴通讯股份有限公司 | Method and device for sending and receiving uplink signal, storage medium and electronic equipment |
| US11637667B2 (en) | 2018-04-02 | 2023-04-25 | Zte Corporation | Method and apparatus for transmitting and receiving uplink signal, storage medium, and electronic device |
| CN112751796A (en) * | 2019-10-31 | 2021-05-04 | 华为技术有限公司 | Method and device for mapping and demapping reference signal sequence |
| CN112751796B (en) * | 2019-10-31 | 2022-06-14 | 华为技术有限公司 | Method and device for mapping and demapping reference signal sequence |
| CN113364498A (en) * | 2020-03-06 | 2021-09-07 | 上海朗帛通信技术有限公司 | Method and apparatus in a node used for wireless communication |
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