CN103929754A - Communication processing method, device, terminal and base station - Google Patents
Communication processing method, device, terminal and base station Download PDFInfo
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- CN103929754A CN103929754A CN201310012144.4A CN201310012144A CN103929754A CN 103929754 A CN103929754 A CN 103929754A CN 201310012144 A CN201310012144 A CN 201310012144A CN 103929754 A CN103929754 A CN 103929754A
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Abstract
The invention provides a communication processing method, device, terminal and base station. When the method is applied to the terminal, SR resources are multiplexed on SRS resources. The method comprises the steps of judging sending requests of the SR and the SRS of a current subframe, and obtaining a judging result; sending the subframe to the base station directly when the judging result indicates that the current subframe needs to send the requests of the SRS and the SR at the same time; sending the subframe carrying the SRS information to the base station when the judging result indicates that the current subframe does not need to send the SR and needs to send the SRS, enabling the base station to carry out detection on the subframe when the subframe is received, and using the SRS information to carry out uplink channel measurement when the fact that the subframe carries the SRS information is detected; otherwise, carrying out an uplink service channel resource allocation process, and carrying out channel measurement by utilizing pilot frequency on service channels. According to the communication processing method, device, terminal and base station, the feedback mode that HARQ multiplexes the SR is prevented from being used, and the sending of the requests of the SR is guaranteed at the same time.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of communication processing method, device, terminal and base station.
Background technology
In current TD-LTE system, in order to ensure flow, use mixed automatic retransfer request (HARQ) technology.The basic process of the work of HARQ is: transmitting terminal is together in series one or more data cell, encode according to physical layer protocol, generate multiple HARQ attached bags, transmitting terminal is only launched 1 attached bag at every turn, receiving terminal, also can correct decoding without obtaining all attached bags.Receiving terminal, in the time receiving first attached bag, with regard to trial and error decoding, is attacked if be decoded into, and just returns to a confirmation (ACK) message to base station, stops and sends follow-up attached bag; If decoding failure, returns to one and deny information (NACK), please launch next attached bag by transmitting terminal, then carry out decoding.Owing to there being strong correlation between attached bag, so can utilize the information of multiple attached bags of receiving, improve the success rate of decoding.
According to LTE physical layer protocol 213, the HARQ on ascending control channel (PUCCH) reports mode to have following three kinds:
1. the feedback model of single-shot HARQ information
Under this pattern, can use binding (bundling) or multiplexing (multiplexing) pattern to send.Wherein:
Binding pattern, as shown in Figure 1, carries out the same code stream result of all feedback subframes and the rear feedback of operation, if the corresponding BIT feedback of code stream is denied information, retransmits code stream corresponding to this information of all subframes;
Multiplexer mode, as shown in Figure 2, carries out all code stream results of same subframe and the rear feedback of operation, if the corresponding BIT feedback of subframe is denied information, retransmits all information in the corresponding subframe of this information.
The feedback model of the multiplexing dispatch request of 2.HAQR (Scheduling Requst, SR) resource
Under this pattern, deny feedback if receive, retransmit all descending attached bags.
The feedback model of 3.HAQR multipling channel quality index (CQI)
In TD_LTE system, agreement 211 has provided several subframe proportionings below, and as shown in table 1, wherein U represents sub-frame of uplink, and D represents descending sub frame, and S represents special subframe.
Subframe proportioning in table 1 agreement 211
Due to HARQ reports must be in uplink frame, i.e. U subframe, feeds back multiple descending sub frames so will there will be in ratio of uplink subframe to downlink subframe situation 1 to 5 in a sub-frame of uplink, in a sub-frame of uplink, feeds back the situation of multiple D subframe results.Illustrate as follows:
< example 1>
In the time of ratio of uplink subframe to downlink subframe situation 5, ratio of uplink subframe to downlink subframe is 1:8, if when transmission is used double fluid, does not consider special subframe S, and sub-frame of uplink feeds back the transmission situation of 16 downlink data attached bags possibly.
The feedback system that adopts the multiplexing SR of HARQ, the granularity of feedback is much larger than the feedback system of single-shot HARQ.Deny feedback if receive, need to retransmit all descending attached bags, need to take the system resource onesize with new biography and retransmit, use the feedback system of HARQ information multiplexing SR will waste a large amount of system resource.Illustrate as follows:
< example 2>
As above when the ratio of uplink subframe to downlink subframe situation 5 of example, suppose only wrong 1 data sub-packets in descending 8 transmission attached bags, if use the multiplexing SR pattern of HARQ feedback model, can not confirm which bag is wrong attached bag be, need to retransmit 8 all attached bags.And the multiplexing feedback system of use single-shot HARQ, only by 2 data sub-packets that retransmit wrong attached bag place subframe.
So in the situation that channel condition is general, use the feedback system of HARQ information multiplexing SR will waste a large amount of system resource.
Summary of the invention
The object of this invention is to provide a kind of communication processing method, device, terminal and base station, avoid using the feedback system of the multiplexing SR of HARQ, ensure the transmission of SR request simultaneously.
To achieve these goals, the embodiment of the present invention provides a kind of communication processing method, for a terminal, and multiplexing SR resource in SRS resource, described communication processing method comprises:
Judge the transmission demand of current subframe SR and SRS, obtain the first judged result;
In the time that described the first judged result indicates current subframe to need to send SRS and SR request simultaneously, described subframe is directly sent to base station, indicate current subframe not need to send SR request in described the first judged result, but need to send SRS time, the described sub-frame data that carries SRS information is sent to described base station, make the base station can be in the time receiving described subframe, described subframe is detected, and detecting while carrying SRS information in described subframe, utilize described SRS information to carry out up channel measurement, otherwise carry out reverse link traffic channel resource allocation flow, and utilize the pilot tone in Traffic Channel to carry out channel measurement.
Above-mentioned communication processing method, wherein, current subframe meets SR transmission demand and is specially:
The current subframe of current data frame meets SR and sends condition; With
Described terminal need to be carried out SR request.
Above-mentioned communication processing method, wherein, described SR transmission condition is:
Wherein, n
ffor the frame number of Frame, n
sfor the time-gap number in Frame, T
sRoffsetfor the sub-frame offset of SR request, T
sRfor the cycle parameter of SR request.
Above-mentioned communication processing method, wherein, current subframe meets SRS transmission demand and is specially:
(10*n
f+k
SRS-T
SRSoffset)mod?T
SRS=0，
Wherein, n
ffor the frame number of described subframe place Frame, k
sRSfor allowing the sequence number of the symbol that sends SRS, T
sRSoffsetfor the sub-frame offset parameter of SRS request, T
sRSfor the cycle parameter of SRS request.
To achieve these goals, the embodiment of the present invention also provides a kind of communication processing method, and for a base station, described communication processing method comprises:
The subframe that receiving terminal sends;
Whether the subframe that judgement receives meets SR sends condition, obtains the second judged result;
In the time that described the second judged result indicates described subframe to meet SR transmission condition, detect in described subframe whether carry SRS information, obtain a testing result;
Indicate while carrying SRS information in described subframe in described testing result, utilize described SRS information to carry out up channel measurement;
Otherwise carry out reverse link traffic channel resource allocation flow, and utilize the pilot tone in Traffic Channel to carry out channel measurement.
Above-mentioned communication processing method, wherein, described subframe meets SR transmission condition and is specially:
Wherein, n
ffor the frame number of described subframe place Frame, n
sfor the time-gap number in Frame, T
sRoffsetfor the sub-frame offset of SR request, T
sRfor the cycle parameter of SR request.
Whether above-mentioned communication processing method, wherein, carry SRS information in the described subframe of described detection, obtains testing result and be specially:
Female code data of the SRS that data in described subframe and pre-stored described terminal should be sent carries out conjugation processing, obtains a frequency domain data;
Described frequency domain data is converted to time domain data;
Whether the peak value that detects described time domain data is greater than a default thresholding, obtains described testing result.
To achieve these goals, the embodiment of the present invention also provides a kind of communication processing apparatus, for a terminal, and multiplexing SR resource in SRS resource, described communication processing apparatus comprises:
The first judge module, for judging the transmission demand of current subframe SR and SRS, obtains the first judged result;
The first sending module, be used in the time that described the first judged result indicates current subframe to need to send SRS and SR request simultaneously, described subframe is directly sent to base station, the second sending module, for indicate current subframe not need to send SR request in described the first judged result, but need to send SRS time, the described subframe of carrying SRS information is sent to described base station, make the base station can be in the time receiving described subframe, described subframe is detected, and detecting while carrying SRS information in described subframe, utilize described SRS information to carry out up channel measurement; Otherwise carry out reverse link traffic channel resource allocation flow, and utilize the pilot tone in Traffic Channel to carry out channel measurement.
Above-mentioned communication processing apparatus, wherein, current subframe meets SR transmission demand and is specially:
The current subframe of current data frame meets SR and sends condition; With
Described terminal need to be carried out SR request.
Above-mentioned communication processing apparatus, wherein, described SR transmission condition is:
Wherein, n
ffor the frame number of described Frame, n
sfor the time-gap number in Frame, T
sRoffsetfor the sub-frame offset of SR request, T
sRfor the cycle parameter of SR request.
Above-mentioned communication processing apparatus, wherein, current subframe meets SRS transmission demand and is specially:
(10*n
f+k
SRS-T
SRSoffset)mod?T
SRS=0，
Wherein, n
ffor the frame number of described subframe place Frame, k
sRSfor allowing the sequence number of the symbol that sends SRS, T
sRSoffsetfor the sub-frame offset parameter of SRS request, T
sRSfor the cycle parameter of SRS request.
To achieve these goals, the embodiment of the present invention also provides a kind of communication processing apparatus, and for a base station, described communication processing apparatus comprises:
Receiver module, the subframe sending for receiving terminal;
The second judge module, for judging whether the subframe receiving meets SR and send condition, obtains the second judged result;
Detection module, while sending condition, detects in described subframe whether carry SRS information for indicate described subframe to meet SR in described the second judged result, obtains a testing result;
The first processing module, when indicating described subframe to carry SRS in described testing result, utilizes described SRS information to carry out up channel measurement;
The second processing module, when indicating described subframe not carry SRS information in described testing result, carries out reverse link traffic channel resource allocation flow, and utilizes the pilot tone in Traffic Channel to carry out channel measurement.
Above-mentioned communication processing apparatus, wherein, described subframe meets SR transmission condition for being specially:
Wherein, n
ffor the frame number of described subframe place Frame, n
sfor the time-gap number in Frame, T
sRoffsetfor the sub-frame offset of SR request, T
sRfor the cycle parameter of SR request.
Above-mentioned communication processing apparatus, wherein, described detection module specifically comprises:
Conjugation processing module, carries out conjugation processing for female code data of SRS that the data of described subframe and pre-stored described terminal should be sent, obtains a frequency domain data;
Modular converter, for being converted to time domain data by described frequency domain data;
Whether detection sub-module, be greater than a default thresholding for detection of the peak value of described time domain data, obtains described testing result.
To achieve these goals, the embodiment of the present invention also provides a kind of terminal, comprises the communication processing apparatus for terminal described in above-mentioned any one.
To achieve these goals, the embodiment of the present invention also provides a kind of base station, it is characterized in that, the communication processing apparatus for base station described in above-mentioned any one.
The embodiment of the present invention has at least one of following beneficial effect:
The embodiment of the present invention, can avoid using the feedback system of the multiplexing SR of HARQ, ensures the transmission of SR request simultaneously;
The embodiment of the present invention, multiplexing SR resource in SRS resource, utilizes the pilot tone in Traffic Channel to carry out channel measurement, does not affect channel measurement function;
The embodiment of the present invention, in the time that a sub-frame of uplink need to feed back multiple descending sub frame, can greatly improve granularity and the accuracy of HARQ feedback in TD-LTE system, thereby improves the flow of whole system.
Brief description of the drawings
Fig. 1 is the schematic diagram of single-shot HARQ binding pattern in prior art;
Fig. 2 is the schematic diagram of single-shot HARQ multiplexer mode in prior art;
Fig. 3 is the schematic flow sheet of the communication processing method for terminal of the embodiment of the present invention;
Fig. 4 is the idiographic flow schematic diagram of the communication processing method for terminal of the embodiment of the present invention;
Fig. 5 is the schematic flow sheet of the communication processing method for base station of the embodiment of the present invention;
Fig. 6 is the idiographic flow schematic diagram of the communication processing method for base station of the embodiment of the present invention;
The schematic flow sheet of communication processing method when Fig. 7 is the base station of the embodiment of the present invention and terminal interaction;
Fig. 8 is the structural representation of the communication processing apparatus for terminal of the embodiment of the present invention;
Fig. 9 is the structural representation of the communication processing apparatus for base station of the embodiment of the present invention.
Embodiment
Before the embodiment of the present invention is elaborated, the principle first embodiment of the present invention being related to is elaborated, so that better understand the embodiment of the present invention.
First, send SR at every turn carry out after resource request in terminal, base station side will be distributed reverse link traffic channel (PUSCH) resource, and channel measurement function and the SRS measurement function of the pilot tone on PUSCH are basically identical.
Secondly, in TD-LTE system, up-downgoing channel is equity completely, so the SRS of up channel measurement can rely on terminal, the channel quality index (CQI) of down channel measurement feedback is supplemented.
Finally, in the time that whether detection SRS resource sends, base station has obtained the relevant prior information such as cycle, time delay of terminal in the time that terminal accesses, so Detection accuracy is high.
Based on above-mentioned principle, send SR in terminal carries out after resource request at every turn, base station side can replace the channel measurement of the pilot tone on PUSCH SRS to measure, the CQI that simultaneously can measure feedback to down channel according to terminal supplements, thereby within one period of moment, can not rely on SRS and carry out channel measurement, ensure multiplexing SR in SRS resource, can not have influence on channel measurement function; , because whether SRS sends can accurately be checked, therefore multiplexing SR resource in SRS resource, can not affect the detection performance of SR meanwhile.
Therefore, based on above-mentioned principle, the embodiment of the present invention provides a kind of communication processing method, for a terminal, and multiplexing SR resource in SRS resource, described communication processing method, as shown in Figure 3, comprising:
Step 31, judges the transmission demand of current subframe SR and SRS, obtains the first judged result; In the time that described the first judged result indicates current subframe to need to send SRS and SR request simultaneously, enter step 32, indicate current subframe not need to send SR request in described the first judged result, but need to send SRS time, enter step 33;
Step 32, directly sends to base station by described subframe;
Step 33, sends to described base station by the described subframe of carrying SRS information.
Base station, in the time receiving described subframe, is detected described subframe, and detecting while carrying SRS in described subframe, utilizes described SRS to carry out up channel measurement; Otherwise carry out reverse link traffic channel resource allocation flow, and utilize the pilot tone in Traffic Channel to carry out channel measurement.
Before step 31 judges the transmission demand of current subframe SR and SRS, for multiplexing SR resource in SRS resource, it is TURE that base station side needs configuration parameter ack Nack SRS-Simultaneous Transmission, express support for permission transmitting SRS and the PUCCH resource that has ACK/NACK simultaneously in same subframe, guarantee SR is multiplexing after SRS like this, and SRS resource can be because of be prohibited transmission with HAQR resource contention.
In addition, in the time of base station access by terminal, base station will be the exclusive parameter of terminal configuration, in embodiments of the present invention, preferably, if the exclusive parameter of configuration should ensure that current subframe need to send SR, need to send SRS simultaneously, can the SR cycle be the integral multiple in SRS cycle by configuration, configure that SRS sub-frame offset is identical with SR sub-frame offset to be realized simultaneously.
Specify according to LTE system physical layer agreement (3GPP TS36.213), the SR cycle, SRS cycle and the corresponding sub-frame offset that configure are issued to terminal with indexed mode, the span of SRS configuration index ISRS is as shown in table 2, and the span of SR configuration index ISR is as shown in table 3.
| I SRS | The SRS cycle (ms) | SRS sub-frame offset |
| 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 | I SRS–10 |
| 15–24 | 10 | I SRS–15 |
| 25–44 | 20 | I SRS–25 |
| 45–84 | 40 | I SRS–45 |
| 85–164 | 80 | I SRS–85 |
| 165–324 | 160 | I SRS–165 |
| 325–644 | 320 | I SRS–325 |
| 645–1023 | Retain | Retain |
The index, cycle of table 2SRS and the corresponding table of sub-frame offset
| I SR | The SR cycle (ms) | SR sub-frame offset |
| 0–4 | 5 | I SR |
| 5-14 | 10 | I SR-5 |
| 15–34 | 20 | I SR-15 |
| 35–74 | 40 | I SR-35 |
| 75-154 | 80 | I SR-75 |
| 155–156 | 2 | I SR-155 |
| 157 | 1 | I SR-157 |
The index, cycle of table 3SR and the corresponding table of sub-frame offset
Terminal is receiving after the index ISRS and ISR that base station issues, then determines SR cycle, SRS cycle and corresponding sub-frame offset according to table 2 and table 3.Illustrate as follows.
< example three >
Base station side is the exclusive parameter of terminal configuration, is specially: the cycle of SRS is 20ms, and the cycle of SR is 2 times of SRS cycle, 40ms, the sub-frame offset of SRS and SR is 3, and the index ISRS that can obtain SRS according to table 2 is 28, and the index ISR that can obtain SR according to table 3 is 38.
It is 28 that base station side only issues ISRS, and ISR is 38 to terminal, and the sub-frame offset that terminal can obtain SRS according to table 2 is to be 20ms in 3, the SRS transmission cycle, and can obtain SR sub-frame offset according to table 3 is to be 40ms in 3, the SR transmission cycle.
Complete after above-mentioned configuration, entering step 31 and judge the transmission demand of current subframe SR and SRS, obtaining the first judged result, in the time of multiplexing SR resource in SRS resource, having following four kinds of situations:
The current subframe of < situation one > need to send SRS and SR request simultaneously;
The current subframe of < situation two > does not need to send SR request, but need to send SRS;
The current subframe of < situation three > does not need to send SRS request, but need to send SR;
The < situation current subframe SRS of four > and SR do not need to send.
Because base station is in the time being the exclusive parameter of terminal configuration, be configured to the integral multiple in SRS cycle the SR cycle, configure SRS sub-frame offset identical with SR sub-frame offset simultaneously, if need to send so SR request, just must need to send SRS, therefore situation three just can be considered with situation one simultaneously.Except situation all round, when terminal indicates current subframe to need to send SRS and SR request in judged result simultaneously, situation is for the moment, enter step 32, indicate current subframe not need to send SR request in described judged result, but need to send SRS time, while being situation two, enter step 33.
Base station, in the time receiving the Frame that terminal sends, is detected the subframe of Frame, and detecting while carrying SRS in corresponding subframe, utilizes described SRS to carry out up channel measurement; Otherwise carry out reverse link traffic channel resource allocation flow, and utilize the pilot tone in Traffic Channel to carry out channel measurement.
The communication processing method that the present embodiment provides, avoid using the feedback system of the multiplexing SR of HARQ, simultaneously, at SRS with SR is multiplexing while clashing, while needing to send SRS and SR request simultaneously, ensure the transmission of SR request, and utilized the pilot tone in Traffic Channel to carry out channel measurement, do not affected channel measurement function; In the time that a sub-frame of uplink need to feed back multiple descending sub frame, owing to avoiding having used the feedback system of the multiplexing SR of HARQ, can greatly improve granularity and the accuracy of HARQ feedback, thereby improve the flow of whole system.
Above-mentioned communication processing method, wherein, current subframe meets SR transmission demand and is specially:
The current subframe of current data frame meets SR and sends condition; With
Described terminal need to be carried out SR request.
Wherein, described SR transmission condition is:
Wherein, n
ffor the frame number of described Frame, n
sfor the time-gap number in subframe, T
sRoffsetfor the sub-frame offset of SR request, T
sRfor the cycle parameter of SR request.
Meet SR in the subframe of Frame to be sent and send condition, reach SR and send the cycle, when terminal is prepared to carry out uplink service, just need to send SR to base station side application ascending resource simultaneously.
Above-mentioned communication processing method, wherein, current subframe meets SRS transmission demand and is specially:
(10*n
f+k
SRS-T
SRSoffset)mod?T
SRS=0，
Wherein, n
ffor the frame number of described subframe place Frame, k
sRSfor allowing the sequence number of the symbol that sends SRS, T
sRSoffsetfor the sub-frame offset parameter of SRS request, T
sRSfor the cycle parameter of SRS request.
Meet SRS in the subframe of Frame to be sent and send condition, while reaching the SRS transmission cycle, just need to send SRS and carry out channel measurement to base station side application.
Wherein, k
sRSvalue as shown in table 4.
Table 4k
sRSvalue
Illustrate the flow process of end side communication processing method below.
< example four >
As shown in Figure 4.
Base station side is after configuration parameter ack Nack SRS-Simultaneous Transmission is TURE, for the exclusive parameter of terminal configuration, making the SR cycle is the integral multiple in SRS cycle, SRS sub-frame offset is identical with SR sub-frame offset simultaneously, and determine after the index ISRS and ISR of SRS and SR respectively according to table 2, table 3, ISRS and ISR are sent to terminal;
Terminal receives after ISRS and ISR, determines cycle and the sub-frame offset corresponding with SRS according to table 2, determines cycle and the sub-frame offset corresponding with SR according to table 3, waits for next subframe to be sent;
Judge the transmission demand of current subframe SR and SRS, obtain the first judged result;
If meet formula (10*n
f+ k
sRS-T
sRSoffset) mod T
sRS=0, wherein, n
ffor the frame number of described subframe place Frame, k
sRSfor allowing to send the sequence number of symbol of SRS, concrete value is in table 4, T
sRSoffsetfor the sub-frame offset parameter of SRS request, T
sRSfor the cycle parameter of SRS request, the transmission cycle that has reached SRS is described, illustrate that current subframe meets SRS and sends demand;
If meet formula
wherein, n
ffor the frame number of described Frame, n
sfor the time-gap number in subframe, T
sRoffsetfor the sub-frame offset of SR request, T
sRfor the cycle parameter of SR request, the transmission cycle that has reached SR is described, but now also will judges whether described terminal needs to carry out SR request according to SOT state of termination, only in the transmission cycle that has reached SR, and when terminal need to be carried out SR request, just illustrate that current subframe meets SR and sends demand;
In the time that the first judged result indicates current subframe to need to send SRS and SR request simultaneously, the subframe of Frame to be sent is directly sent to base station;
Indicate current subframe not need to send SR request in the first judged result, but need to send SRS time, the subframe of carrying SRS is sent to described base station.
For fear of the feedback system that uses the multiplexing SR of HARQ, SR in the embodiment of the present invention is in the time of the multiplexing SRS resource of end side, all the time do not send SR request, need base station after Frame, to do further differentiation processing receiving, therefore, the embodiment of the present invention also provides a kind of communication processing method, for a base station, as shown in Figure 5, described communication processing method comprises:
Step 51, receiving terminal sends subframe;
Step 52, whether the subframe that judgement receives meets SR sends condition, obtains the second judged result, in the time that the second judged result indicates described subframe to meet SR transmission condition, enters step 53;
Step 53, detects in described subframe whether carry SRS information, obtains a testing result; Indicate while carrying SRS information in described subframe in described testing result, enter step 53, otherwise enter step 54;
Step 54, utilizes described SRS information to carry out up channel measurement;
Step 55, carries out reverse link traffic channel resource allocation flow, and utilizes the pilot tone in Traffic Channel to carry out channel measurement.
Base station is receiving after the Frame of terminal transmission, judge whether described subframe meets SR and send condition, send when condition when described subframe meets SR detect in described subframe, whether to have carried SRS, if carried SRS, utilize described SRS to carry out up channel measurement; Otherwise, just illustrate that terminal will carry out SR request, carry out reverse link traffic channel resource allocation flow, and utilize the pilot tone in Traffic Channel to carry out channel measurement.
The communication processing method for base station side that the present embodiment provides, utilizes the pilot tone in Traffic Channel to carry out channel measurement, does not affect channel measurement function.
Above-mentioned communication processing method, wherein, described SR transmission condition is for being specially:
Wherein, n
ffor the frame number of described subframe place Frame, n
sfor the time-gap number in subframe, T
sRoffsetfor the sub-frame offset of SR request, T
sRfor the cycle parameter of SR request.
Above-mentioned communication processing method, wherein, step 53 can be specially:
Step 531, female code data of the SRS that the data in described subframe and pre-stored described terminal should be sent carries out conjugation processing, obtains a frequency domain data;
Step 532, is converted to time domain data by described frequency domain data;
Step 533, whether the peak value that detects described time domain data is greater than a default thresholding, obtains described testing result.
At frequency domain, the female code data of SRS that base station side should send the data that receive and pre-stored terminal carries out conjugate complex to be taken advantage of, and the data result of conjugate complex after taking advantage of should be the power spectral density of terminal transmitting data.Because power spectral density function and auto-correlation function Fourier transform each other, SRS signal is one group of ZC sequence, and the feature of ZC sequence is that autocorrelation is very strong, and cross correlation is for very weak, so will there is peak value in the time transforming to time domain.
Now can be in time domain be carried out window time domain peak value searching, window length=terminal sends SRS code on SRS carrier wave total length/current frequency band and divides number of users, then calculates in window peak value and judge whether to exceed detection threshold with the peak-to-average force ratio of noise outside window, obtains testing result.Think and sent SRS signal if exceed thresholding, do not exceed thresholding and think and do not send SRS signal.Threshold value is determined by false alarm probability.False alarm probability is defined as: false alarm probability=Pf(SRS is detected | and there is no the transmission of SRS signal), according to the requirement to ZC sequence resources measurement in LTE104 agreement, the thresholding false alarm probability of getting should meet Pfa=0.1%.
Illustrate the flow process of base station side communication processing method below.
< example five >
As shown in Figure 6.
After base station side configuration parameter ack Nack SRS-Simultaneous Transmission is TURE, for the exclusive parameter of terminal configuration, making the SR cycle is the integral multiple in SRS cycle, SRS sub-frame offset is identical with SR sub-frame offset simultaneously, and determine after the index ISRS and ISR of SRS and SR respectively according to table 2, table 3, ISRS and ISR are sent to terminal;
The subframe that receiving terminal sends;
Whether the described subframe that judgement receives meets SR sends condition, obtains the second judged result;
If now meet formula
wherein, n
ffor the frame number of described Frame, n
sfor the time-gap number in subframe, T
sRoffsetfor the sub-frame offset of SR request, T
sRfor the cycle parameter of SR request, the transmission condition that meets SR is described, in the time that described subframe meets SR transmission condition, detect in described subframe whether carry SRS, obtain testing result;
Indicate while carrying SRS in described subframe in described testing result, utilize described SRS information to carry out up channel measurement;
Otherwise carry out reverse link traffic channel resource allocation flow, and utilize the pilot tone in Traffic Channel to carry out channel measurement.
The overall flow of the communication processing method that illustrates the embodiment of the present invention below in the time of base station and terminal interaction.
< example six >
As shown in Figure 7.
First, base station side configuration parameter ack Nack SRS-Simultaneous Transmission is TURE, ensures that HAQR can send in same subframe with SRS;
Secondly, the exclusive parameter of base station side configuration parameter terminal, SRS sub-frame offset is 3, the SRS transmission cycle is 20ms, and SR sub-frame offset is also that 3, the SR transmission cycle is 40ms, it is 2 times that SRS sends the cycle, then according to table 2, table 3, the configuration parameter that is issued to terminal is that index ISRS is 28, and index ISR is 38;
The index ISRS that end side receives base station side parameter configuration is 28, and index ISR is 38, and can obtain SR sub-frame offset according to table 2 is to be 20ms in 3, the SR transmission cycle, and can obtain SR sub-frame offset according to table 3 is to be 40ms in 3, the SR transmission cycle;
Judge the transmission demand of current subframe SR and SRS, obtain the first judged result:
Suppose the frame number n of current Frame to be sent
fbe 16, subframe numbers is 3 o'clock, and end side judges that current frame number and subframe numbers meet formula (10*n
f+ k
sRS-T
sRSoffset) mod T
sRS=0, current subframe meets SRS transmission demand; Judge that more current frame number and subframe numbers meet formula equally
terminal need to send SR request simultaneously, be that current subframe meets SR transmission demand, the first judged result is that current subframe needs to send SRS and SR request simultaneously and currently need to carry out ascending resource request, does not carry out the transmission of the SRS signal of this subframe, directly described subframe is sent to base station side;
The Frame that base station side receiving terminal sends, as frame number n
fbe 16, subframe numbers is 3 o'clock, and base station side judges that current frame number and subframe numbers meet formula
illustrate that meeting SR sends condition;
Base station side detects SRS, if SRS detected, utilizes described SRS to carry out up channel measurement;
Otherwise, illustrate that terminal now will carry out SR request, need enter ascending resource scheduling flow process, and utilize the pilot tone in Traffic Channel to carry out channel measurement.
Can find out by upper example the communication processing method that the embodiment of the present invention provides, can avoid using the feedback system of the multiplexing SR of HARQ, ensure the transmission of SR request simultaneously; Multiplexing SR resource in SRS resource, utilizes the pilot tone in Traffic Channel to carry out channel measurement, does not affect channel measurement function; In the time that a sub-frame of uplink need to feed back multiple descending sub frame, can greatly improve granularity and the accuracy of HARQ feedback in TD-LTE system, thereby improve the flow of whole system.
The embodiment of the present invention also provides a kind of communication processing apparatus, for a terminal, and multiplexing SR resource in SRS resource, described communication processing apparatus, as shown in Figure 8, comprising:
The first judge module, for judging the transmission demand of current subframe SR and SRS, obtains the first judged result;
The first sending module, be used in the time that described the first judged result indicates current subframe to need to send SRS and SR request simultaneously, described subframe is directly sent to base station, the second sending module, for indicate current subframe not need to send SR request in described the first judged result, but need to send SRS time, the described subframe of carrying SRS information is sent to described base station, make the base station can be in the time receiving described subframe, described subframe is detected, and detecting while carrying SRS information in described subframe, utilize described SRS information to carry out up channel measurement; Otherwise carry out reverse link traffic channel resource allocation flow, and utilize the pilot tone in Traffic Channel to carry out channel measurement.
Above-mentioned communication processing apparatus, wherein, current subframe meets SR transmission demand and is specially:
The current subframe of current data frame meets SR and sends condition; With
Described terminal need to be carried out SR request.
Above-mentioned communication processing apparatus, wherein, described SR transmission condition is:
Wherein, n
ffor the frame number of described Frame, n
sfor the time-gap number in subframe, T
sRoffTsetfor the sub-frame offset of SR request, T
sRfor the cycle parameter of SR request.
Above-mentioned communication processing apparatus, wherein, current subframe meets SRS transmission demand and is specially:
(10*n
f+k
SRS-T
SRSoffset)mod?T
SRS=0，
Wherein, n
ffor the frame number of described subframe place Frame, k
sRSfor allowing the sequence number of the symbol that sends SRS, T
sRSoffsetfor the sub-frame offset parameter of SRS request, T
sRSfor the cycle parameter of SRS request.
The embodiment of the present invention also provides a kind of communication processing apparatus, and for a base station, described communication processing apparatus, as shown in Figure 9, comprising:
Receiver module, the subframe sending for receiving terminal;
The second judge module, for judging whether the described subframe receiving meets SR and send condition, obtains the second judged result;
Detection module, while sending condition, detects in described subframe whether carry SRS information for indicate described subframe to meet SR in described the second judged result, obtains a testing result;
The first processing module, when indicating described subframe to carry SRS information in described testing result, utilizes described SRS information to carry out up channel measurement;
The second processing module, when indicating described subframe not carry SRS information in described testing result, carries out reverse link traffic channel resource allocation flow, and utilizes the pilot tone in Traffic Channel to carry out channel measurement.
Above-mentioned communication processing apparatus, wherein, described SR transmission condition is for being specially:
Wherein, n
ffor the frame number of described subframe place Frame, n
sfor the time-gap number in subframe, T
sRoffsetfor the sub-frame offset of SR request, T
sRfor the cycle parameter of SR request.
Above-mentioned communication processing apparatus, wherein, described detection module specifically comprises:
Conjugation processing module, carries out conjugation processing for female code data of SRS that the data of described subframe and pre-stored described terminal should be sent, obtains a frequency domain data;
Modular converter, for being converted to time domain data by described frequency domain data;
Whether detection sub-module, be greater than a default thresholding for detection of the peak value of described time domain data, obtains described testing result.
The embodiment of the present invention also provides a kind of terminal, comprises the communication processing apparatus for terminal described in above-mentioned any one.
The embodiment of the present invention also provides a kind of base station, it is characterized in that, the communication processing apparatus for base station described in above-mentioned any one.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (16)
1. a communication processing method, for a terminal, is characterized in that, multiplexing SR resource in SRS resource, and described communication processing method comprises:
Judge the transmission demand of current subframe SR and SRS, obtain the first judged result;
In the time that described the first judged result indicates current subframe to need to send SRS and SR request simultaneously, described subframe is directly sent to base station, indicate current subframe not need to send SR request in described the first judged result, but need to send SRS time, the described subframe of carrying SRS information is sent to described base station, make the base station can be in the time receiving described subframe, described subframe is detected, and detecting while carrying SRS information in described subframe, utilize described SRS information to carry out up channel measurement, otherwise carry out reverse link traffic channel resource allocation flow, and utilize the pilot tone in Traffic Channel to carry out channel measurement.
2. communication processing method as claimed in claim 1, is characterized in that, current subframe meets SR transmission demand and is specially:
The current subframe of current data frame meets SR and sends condition; With
Described terminal need to be carried out SR request.
3. scheduling of resource request multiplexing method as claimed in claim 2, is characterized in that, described SR transmission condition is specially:
Wherein, n
ffor the frame number of described Frame, n
sfor the time-gap number in Frame, T
sRoffsetfor the sub-frame offset of SR request, T
sRfor the cycle parameter of SR request.
4. communication processing method claimed in claim 1, is characterized in that, described current subframe meets SRS transmission demand and is specially:
(10*n
f+k
SRS-T
SRSoffset)mod?T
SRS=0，
Wherein, n
ffor the frame number of described subframe place Frame, k
sRSfor allowing the sequence number of the symbol that sends SRS, T
sRSoffsetfor the sub-frame offset parameter of SRS request, T
sRSfor the cycle parameter of SRS request.
5. a communication processing method, for a base station, is characterized in that, described communication processing method comprises:
The subframe that receiving terminal sends;
Judgement receives described subframe and whether meets SR transmission condition, obtains the second judged result;
In the time that described the second judged result indicates described subframe to meet SR transmission condition, detect in described subframe whether carry SRS information, obtain a testing result;
Indicate while carrying SRS information in described subframe in described testing result, utilize described SRS information to carry out up channel measurement;
Otherwise carry out reverse link traffic channel resource allocation flow, and utilize the pilot tone in Traffic Channel to carry out channel measurement.
6. communication processing method as claimed in claim 5, is characterized in that, described SR transmission condition is specially:
Wherein, n
ffor the frame number of described subframe place Frame, n
sfor the time-gap number in Frame, T
sRoffsetfor the sub-frame offset of SR request, T
sRfor the cycle parameter of SR request.
7. communication processing method as claimed in claim 5, is characterized in that, in the described subframe of described detection, whether carries SRS information, obtains testing result and is specially:
Female code data of the SRS that data in described subframe and pre-stored described terminal should be sent carries out conjugation processing, obtains a frequency domain data;
Described frequency domain data is converted to time domain data;
Whether the peak value that detects described time domain data is greater than a default thresholding, obtains described testing result.
8. a communication processing apparatus, for a terminal, is characterized in that, multiplexing SR resource in SRS resource, and described communication processing apparatus comprises:
The first judge module, for judging the transmission demand of current subframe SR and SRS, obtains the first judged result;
The first sending module, be used in the time that described the first judged result indicates current subframe to need to send SRS and SR request simultaneously, described subframe is directly sent to base station, the second sending module, for indicate current subframe not need to send SR request in described the first judged result, but need to send SRS time, the described subframe of carrying SRS information is sent to described base station, make the base station can be in the time receiving described subframe, described subframe is detected, and detecting while carrying SRS information in described subframe, utilize described SRS information to carry out up channel measurement, otherwise carry out reverse link traffic channel resource allocation flow, and utilize the pilot tone in Traffic Channel to carry out channel measurement.
9. communication processing apparatus as claimed in claim 8, is characterized in that, current subframe meets SR transmission demand and is specially:
The current subframe of current data frame meets SR and sends condition; With
Described terminal need to be carried out SR request.
10. communication processing apparatus as claimed in claim 9, is characterized in that, described SR transmission condition is specially:
Wherein, n
ffor the frame number of described Frame, n
sfor the time-gap number in Frame, T
sRoffsetfor the sub-frame offset of SR request, T
sRfor the cycle parameter of SR request.
11. communication processing apparatus claimed in claim 8, is characterized in that, described current subframe meets SRS transmission demand and is specially:
(10*n
f+k
SRS-T
SRSoffset)mod?T
SRS=0，
Wherein, n
ffor the frame number of described subframe place Frame, k
sRSfor allowing the sequence number of the symbol that sends SRS, T
sRSoffsetfor the sub-frame offset parameter of SRS request, T
sRSfor the cycle parameter of SRS request.
12. 1 kinds of communication processing apparatus, for a base station, is characterized in that, described communication processing apparatus comprises:
Receiver module, the subframe sending for receiving terminal;
The second judge module, for judging whether the described subframe receiving meets SR and send condition, obtains the second judged result;
Detection module, while sending condition, detects in described subframe whether carry SRS information for indicate described subframe to meet SR in described the second judged result, obtains a testing result;
The first processing module, when indicating described subframe to carry SRS information in described testing result, utilizes described SRS information to carry out up channel measurement;
The second processing module, when indicating described subframe not carry SRS information in described testing result, carries out reverse link traffic channel resource allocation flow, and utilizes the pilot tone in Traffic Channel to carry out channel measurement.
13. communication processing apparatus as claimed in claim 12, is characterized in that, described SR transmission condition is for being specially:
Wherein, n
ffor the frame number of described subframe place Frame, n
sfor the time-gap number in Frame, T
sRoffsetfor the sub-frame offset of SR request, T
sRfor the cycle parameter of SR request.
14. communication processing apparatus as claimed in claim 12, is characterized in that, described detection module specifically comprises:
Conjugation processing module, carries out conjugation processing for female code data of SRS that the data of described subframe and pre-stored described terminal should be sent, obtains a frequency domain data;
Modular converter, for being converted to time domain data by described frequency domain data;
Whether detection sub-module, be greater than a default thresholding for detection of the peak value of described time domain data, obtains described testing result.
15. 1 kinds of terminals, is characterized in that, comprise the communication processing apparatus described in any one in claim 8 to 11.
16. 1 kinds of base stations, is characterized in that, comprise the communication processing apparatus described in any one in claim 12 to 14.
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