CN101932108A - Method and device for increasing system SRS bandwidth - Google Patents
Method and device for increasing system SRS bandwidth Download PDFInfo
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Abstract
The embodiment of the invention discloses a method for increasing system SRS bandwidth, which comprises the following steps of adjusting terminal-level SRS bandwidth corresponding to cell-level SRS bandwidth according to received SRS bandwidth information; and allocating SRS transmission bandwidth according the adjusted maximum terminal-level allocable SRS bandwidth. By using the technical scheme of the embodiment of the invention, the bandwidth, detected by SRS, of frequency domain resources in the system is increased to improve the reliability of the selectivity dispatching of the frequency domain resources.
Description
Technical field
The present invention relates to mechanics of communication, be specifically related to method, the device of a kind of increase SRS of system (Sounding ReferenceSignal monitors reference signal) bandwidth.
Background technology
Wireless telecommunication system provides the wireless communication services of polytype business, for example the transmission of voice, video, data service.In a typical communication system, the base station can be by different wireless access technologys to resources such as the one or more shared bandwidth of terminal distribution, power, and provides radio communication service for a plurality of terminals.At Long Term Evolution (Long Term Evolution, LTE) Ji Hua FDD (FrequencyDivision Duplex, Frequency Division Duplexing (FDD)) and TDD (TDD Division duplex, time division duplex) in the system, adopt OFDMA (Orthogonal Frequency Division Multiplexing Access,) mode carries out the downlink multi-access mode and insert, in the uplink process, adopt SC-FDMA (SingleCarrier-Frequency Division Multiple Access) single-carrier frequency division multiple access cut-in method to carry out the transmission of data and control channel.
In the existing LTE system, the base station sends the SRS configuration messages to terminal, and this SRS configuration messages comprises cell-level SRS band width configuration parameter, cell-level SRS transmission cycle parameter; This SRS configuration messages also comprises the different terminating stage SRS band width configuration parameter of each terminal, terminating stage frequency domain position parameter and terminating stage SRS transmission cycle parameter.
Because cell-level SRS bandwidth differs bigger, when configuration SRS bandwidth, cause system bandwidth can accurately not carry out the frequency selectivity degree, thereby this part resource can not rationally be utilized, so the reliability of frequency domain resource selectivity scheduling reduces in the existing system.
Summary of the invention
The embodiment of the invention provides a kind of method that increases the SRS of system bandwidth, to improve the reliability of frequency domain resource selectivity scheduling.
For this reason, the embodiment of the invention provides following technical scheme:
A kind of method that increases the monitoring reference signal SRS of system bandwidth comprises:
Adjust the terminating stage SRS bandwidth of cell-level SRS bandwidth correspondence according to the SRS bandwidth information that receives;
According to the maximum configurable SRS band width configuration SRS transmission bandwidth of described adjusted terminating stage.
A kind of method that increases the monitoring reference signal SRS of system bandwidth comprises:
Receive cell-level SRS configuration messages, described cell-level SRS configuration messages carries cell-level SRS deviant parameter; Determine to send cell-level SRS start position according to described deviant parameter.
A kind of method that increases the monitoring reference signal SRS of system bandwidth comprises:
Value according to the hollow excess reason Uplink Shared Channel PUSCH of system bandwidth obtains cell-level SRS deviant parameter;
Send described cell-level SRS configuration parameter to terminal, described cell-level SRS configuration messages carries cell-level SRS deviant parameter.
A kind of subscriber equipment comprises:
Adjusting module is used for the terminating stage SRS bandwidth according to the SRS bandwidth information adjustment cell-level SRS bandwidth correspondence that receives;
Configuration module is used for according to the maximum configurable SRS band width configuration SRS transmission bandwidth of described adjusted terminating stage.
A kind of subscriber equipment that increases the SRS of system bandwidth comprises:
Receiver module is used to receive cell-level SRS configuration messages, and described cell-level SRS configuration messages carries cell-level SRS deviant parameter;
Processing module is used for determining to send cell-level SRS start position according to described deviant parameter.
A kind of base station comprises:
Acquisition module is used for obtaining cell-level SRS deviant parameter according to the value of the vacant PUSCH bandwidth of system;
Sending module is used for sending cell-level SRS configuration parameter to terminal, and described cell-level configuration messages carries cell-level SRS deviant parameter.
By technique scheme as can be seen, in the present embodiment, adjust terminating stage SRS bandwidth according to receiving the SRS bandwidth information, according to the maximum configurable SRS band width configuration SRS transmission bandwidth of described adjusted terminating stage, increased in the system and can have been improved the reliability of frequency domain resource selectivity scheduling by the detected PUSCH frequency domain resource of SRS.
Description of drawings
In order to make those skilled in the art person understand the scheme of the embodiment of the invention better, the accompanying drawing of required name usefulness is done to introduce simply in will describing embodiment below.Apparently, the accompanying drawing in describing below only is some embodiment of invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of method flow diagram that increases the SRS of system bandwidth of the embodiment of the invention one;
Fig. 2 is a kind of method flow diagram that increases the SRS of system bandwidth of the embodiment of the invention two;
Fig. 3 is the mapping position schematic diagram of PUCCH bandwidth on physical resource on the 20MHz system bandwidth of 5PRB in the prior art;
Fig. 4 is a kind of method flow diagram that increases the SRS of system bandwidth of the embodiment of the invention three;
Fig. 5 is a kind of method flow diagram that increases the SRS of system bandwidth of the embodiment of the invention four;
Fig. 6 is a kind of other method flow chart that increases the SRS of system bandwidth of the embodiment of the invention four;
Fig. 7 is a kind of user device architecture schematic diagram of the embodiment of the invention five;
Fig. 8 is another structural representation of a kind of subscriber equipment of the embodiment of the invention six;
Fig. 9 is an embodiment of the invention kind July 1st architecture of base station schematic diagram.
Embodiment
As shown in table 1, the shared SRS bandwidth of terminal is according to cell-level SRS band width configuration parameters C
SRSThe row at place and terminating stage SRS configuration parameter B
SRSCommon definite, base station all terminals in the sub-district send cell-level SRS band width configuration parameters C
SRS, because the corresponding different SRS-Bandwidth bandwidth tree form of different bandwidth, terminal need be passed through C
SRSParameter and system uplink bandwidth are determined the pairing bandwidth tree of cell-level SRS system bandwidth, the terminating stage SRS band width configuration B parameter of terminal by receiving
SRSSearch the pairing SRS bandwidth of terminal in corresponding cell-level SRS bandwidth tree.
Table 1
As shown in table 1, SRS bandwidth tree with 20Mhz system correspondence is an example, in the 20Mhz system, the total 100PRB of system bandwidth can carry out uplink traffic transmission, if 5 PRB of PUCCH bandwidth occupancy (Physical Resource Block wherein, Physical Resource Block), the available bandwidth that can carry PUSCH is 95 PRB.Because the SRS bandwidth can not be conflicted mutually with the PUCCH transmission bandwidth, if configuration 96PRB cell-level SRS bandwidth, this cell-level SRS bandwidth causes on frequency domain with the PUCCH bandwidth conflicts, cause the base station correctly to detect, therefore maximum cell-level SRS configured bandwidth can adopt 80PRB to carry out uplink signal-channel quality and measure, but the configured bandwidth of PUSCH causes in the system transmission that also has 15PRB can not dispose the SRS sequence, therefore cause 15 PRB can not carry out the detection of uplink signal-channel quality by SRS, thereby make this part resource can not use SRS to detect uplink signal-channel quality, so the reliability of frequency domain selectivity scheduling reduce.
The embodiment of the invention provides a kind of method that increases the SRS of system bandwidth, can be improved the reliability of frequency domain resource selectivity scheduling by the detected PUSCH frequency domain resource of SRS thereby increased in the system.Below by specific embodiment, be described in detail respectively.
See also Fig. 1, a kind of method first embodiment that increases the SRS of system bandwidth can comprise in the embodiment of the invention:
110,, adjust the terminating stage SRS bandwidth of cell-level SRS bandwidth correspondence according to the SRS bandwidth information that receives;
Wherein, adjusting the terminating stage bandwidth comprises, if cell-level SRS bandwidth is greater than system physical PUSCH bandwidth, reduce the terminating stage SRS bandwidth of this cell-level SRS bandwidth correspondence, specifically comprise the node location information acquisition terminating stage SRS bandwidth of the each transmitting SRS frequency domain of basis and the node location that the PUCCH bandwidth clashes, according to the node location that clashes, reduce the terminating stage bandwidth of this cell-level SRS bandwidth correspondence.
Perhaps, adjusting the terminating stage bandwidth comprises, if cell-level SRS bandwidth is less than the PUSCH of system bandwidth, increase the terminating stage SRS bandwidth of this cell-level SRS bandwidth correspondence, specifically comprise the node location that obtains the PUSCH idle bandwidth according to the node location information of each transmitting SRS frequency domain, according to the node location of this idle bandwidth, adopting increases the maximum configurable SRS transmission bandwidth configurating terminal level SRS bandwidth of back terminating stage.
120, according to the maximum configurable SRS band width configuration SRS transmission bandwidth of adjusted terminating stage.
Wherein, according to the maximum configurable SRS band width configuration SRS transmission bandwidth of adjusted terminating stage, specifically comprise and adopt the maximum configurable SRS transmission bandwidth configurating terminal level SRS bandwidth in terminating stage reduction back, further, in the SRS bandwidth configuration table, select the most approaching not SRS bandwidth of reduction of terminating stage, and the terminating stage SRS band width configuration terminating stage SRS transmission bandwidth that does not clash with the PUCCH bandwidth.
Perhaps, specifically comprise according to the maximum configurable SRS band width configuration SRS transmission bandwidth of adjusted terminating stage, selection is greater than the terminating stage SRS bandwidth that does not increase in the SRS allocation list, and smaller or equal to not increasing the node ' s length before the terminating stage SRS bandwidth and the terminating stage SRS bandwidth of vacant PUSCH bandwidth sum, in available terminal level SRS bandwidth range, select terminating stage SRS bandwidth maximum in this terminating stage SRS bandwidth range, if whole selectable terminating stage SRS bandwidth and PUCCH bandwidth clash, then select not increase the preceding node bandwidth length of terminating stage SRS bandwidth.
Need to prove that above-mentioned steps can also comprise the terminating stage SRS bandwidth of selecting according to new, dispose the frequency domain start position of corresponding SRS node.
By technique scheme as can be seen, in the present embodiment, adjust terminating stage SRS bandwidth according to the SRS bandwidth information that receives, according to the maximum configurable SRS band width configuration SRS transmission bandwidth of described adjusted terminating stage, thereby can have been improved the reliability of frequency domain resource selectivity scheduling by the detected frequency domain resource of SRS in the increase system.
Be reference point with cell-level SRS bandwidth greater than the PUSCH of system bandwidth below, corresponding above-mentioned steps describes, and as shown in Figure 2, a kind of method second embodiment that increases the SRS of system bandwidth can comprise in the embodiment of the invention:
201, if cell-level SRS bandwidth greater than the PUSCH of system bandwidth, obtains the node location that cell-level SRS bandwidth and PUCCH bandwidth clash according to the node location information of each transmitting SRS frequency domain;
Because the SRS signal map is on last OFDM symbol of second time slot of each common subframe, therefore, terminal clashes node location according to the node location information acquisition terminating stage SRS bandwidth and the PUCCH bandwidth of each transmitting SRS frequency domain, specifically comprise:, obtain the PRB position of the pairing PUCCH bandwidth occupancy of lower sideband on second time slot according to the PRB position of cell broadcast messages acquisition PUCCH bandwidth occupancy; According to the SRS length of terminal, obtain the original position of the SRS frequency domain of each transmission, the terminating stage SRS indication that the SRS length of this terminal issues according to the base station obtains; Thereby the PRB position according to this PUCCH bandwidth occupancy produces the node location at the place of conflicting with the original position acquisition terminating stage SRS bandwidth of this SRS frequency domain with the PUCCH bandwidth.
202, according to the node location that clashes, reduce the terminating stage SRS bandwidth of this cell-level SRS bandwidth correspondence, adopt the maximum configurable SRS band width configuration terminating stage SRS transmission bandwidth of reduction back terminating stage.
At the node that does not clash, the terminating stage SRS configuration parameter that terminal issues according to the base station carries out corresponding SRS transmission, terminal is determined the configuration of terminating stage SRS bandwidth according to the position of the PRB that clashes, accordingly, according to the terminating stage SRS bandwidth of new selection, dispose the frequency domain start position of corresponding SRS node.
If the node bandwidth that clashes with PUCCH is in the existing configuration during minimum SRS configuration, this node transmitting SRS signal no longer then.
Technical scheme for a better understanding of the present invention is an example with the 20MHz system bandwidth below, further describes.
Available bandwidth is 100PRB in the 20MHz system, when PUCCH bandwidth occupancy 5PRB, can be used as the PUSCH transmission bandwidth is 95PRB, in embodiments of the present invention, the base station is configured to 96PRB with cell-level SRS, because cell-level SRS bandwidth is greater than the PUSCH of system bandwidth, the zone that PUCCH bandwidth and cell-level SRS bandwidth conflict then can occur, cause the base station correctly to detect, for fear of this problem, terminal is reduced terminating stage SRS bandwidth according to existing SRS bandwidth configuration table, and adopts the maximum configurable SRS transmission bandwidth configurating terminal level SRS bandwidth of reduction back terminating stage.
As shown in table 1, the base station is configured to 96PRB with cell-level SRS, i.e. all terminal C in the notifying cell
SRS=0, because PUCCH bandwidth occupancy PRB number is 5, as shown in Figure 3, the mapping position of PUCCH bandwidth on physical resource on the 20MHz system bandwidth for 5PRB, 3 PRB of upper sideband mapping at second time slot transmit, 2 PRB of lower sideband mapping transmit, and the bandwidth location that takies at second time slot PUCCH is PRB# 0, PRB# 1, PRB# 97, PRB# 98, PRB# 99, because B
SRS=0, corresponding 20Mz system bandwidth, according to table 1, cell-level SRS bandwidth is 96PRB, terminating stage SRS parameter configuration B
SRS=2, the each SRS transmission bandwidth of terminal is 24PRB, and corresponding 4 nodes carry out the transmission of SRS frequency hopping.The frequency domain original position of SRS each frequency hopping node correspondence in the mapping of upstream bandwidth can be passed through formula
Obtain, wherein,
Being the frequency domain original position of node, can value be 0,1 or 2...,
Be up-link bandwidth PRB number, B
SRSBe terminating stage SRS configuration parameter,
Be terminating stage SRS bandwidth, n
bBe terminating stage SRS node.Can calculate corresponding node frequency domain original position according to this formula and be respectively the position of node 0 at PRB# 2, cover PRB# 2 to PRB#25 in this node SRS bandwidth, the position of node 1 is at PRB#26, cover PRB#26 to PRB#49 in this node SRS bandwidth, the position of node 2 is at PRB#50, cover PRB#50 to PRB#73 in this node SRS bandwidth, the position of node 3 covers PRB#74 to PRB# 97 at PRB#74 in this node SRS bandwidth.Bandwidth location that takies by the second time slot PUCCH and corresponding node frequency domain original position are relatively, the terminating stage SRS bandwidth PUCCH bandwidth that can judge node 3 positions clashes, so need in the SRS bandwidth configuration table, choose one near of the SRS transmission of existing SRS bandwidth as node 3, existing bandwidth is " 24PRB ", therefore, choosing SRS length is the use of the SRS signal of 20PRB at node 3, selected SRS bandwidth length can not cause that terminating stage SRS bandwidth and PUCCH bandwidth clash, and at this moment the terminating stage SRS bandwidth of node 3 covers PRB#74 to PRB#93.At this moment SRS bandwidth and PUCCH bandwidth do not clash.
If the SRS bandwidth of node 0 and conflicting of PUCCH then according to the new terminating stage SRS bandwidth of selecting, dispose the frequency domain start position of corresponding SRS node.
By technique scheme as can be seen, SRS bandwidth and PUCCH bandwidth conflict for fear of the terminal transmission, cell-level SRS bandwidth length can only select the SRS bandwidth of 80PRB to transmit at most, and adopt the technical scheme of this example, reduce the terminating stage SRS bandwidth of this cell-level SRS bandwidth correspondence, adopt the maximum configurable SRS transmission bandwidth configurating terminal level SRS bandwidth of reduction back terminating stage, effectively cell-level SRS bandwidth is increased to 92PRB, thereby improves the reliability of frequency domain selectivity scheduling.
As shown in table 1, available bandwidth is 100PRB in the 20MHz system, and when PUCCH bandwidth occupancy 5PRB, can be used as the PUSCH transmission bandwidth is 95PRB, and the base station is configured to 96PRB with cell-level SRS, promptly can all terminal C of notifying cell
SRS=1, as terminating stage SRS configuration B
SRS=1 o'clock, terminating stage SRS bandwidth m
SRS, 1Be 32PRB, the node number is 3, need carry out 3 frequency hoppings and transmit the cell-level SRS bandwidth that can cover 96PRB, if cell-level SRS bandwidth is greater than the PUSCH of system bandwidth, the zone that PUCCH bandwidth and cell-level SRS bandwidth conflict can occur, for fear of this problem, need reduction terminating stage SRS bandwidth, adopt the maximum configurable SRS band width configuration terminating stage SRS transmission bandwidth of reduction back terminating stage.Because the PUCCH bandwidth takies up and down two sidebands bandwidth of totally 5 PRB respectively, therefore, the PUCCH bandwidth is numbered PRB# 0, PRB# 1, PRB# 97, PRB# 98, PRB# 99 at the PRB of second Time Slot Occupancy correspondence.
Because the terminal correspondence 3 nodes and is carried out the transmission of SRS frequency hopping, the frequency domain original position of SRS each frequency hopping node correspondence in the mapping of upstream bandwidth can be by formula because the terminal correspondence 3 nodes and is carried out the transmission of SRS frequency hopping, and the frequency domain original position of SRS each frequency hopping node correspondence in the mapping of upstream bandwidth can be passed through formula
Calculate and obtain, corresponding node frequency domain original position is respectively the position of node 0 at PRB#2, at this node SRS bandwidth covering PRB#2-PRB#33, the position of node 1 is at PRB#34, cover PRB#34-PRB#65 in this node SRS bandwidth, the position of node 2 covers PRB#66-PRB#97 at PRB#66 in this node SRS bandwidth.The terminating stage SRS bandwidth that can find node 2 according to above judgement can clash with the PUCCH bandwidth, therefore, need in all bandwidth SRS configuration forms, choose one near existing SRS bandwidth, but can not cause the terminating stage SRS transmission of SRS bandwidth length that terminating stage bandwidth and PUCCH bandwidth clash again as node 2, choosing SRS length in SRS bandwidth length table is the SRS signal of 24PRB, carry out the SRS transmission at node 2, the bandwidth of node 2SRS covering at this moment is PRB#66-PRB#89.At this moment SRS bandwidth and PUCCH bandwidth do not clash.
If the SRS bandwidth of node 0 and conflicting of PUCCH then according to the new terminating stage SRS bandwidth of selecting, dispose the frequency domain start position of corresponding SRS node.
But, if the node bandwidth that clashes with PUCCH in the existing configuration during minimum SRS configuration, this node transmitting SRS signal no longer then.
By technique scheme as can be seen, for fear of conflicting of terminating stage bandwidth and PUCCH bandwidth, cell-level SRS bandwidth length can only select the SRS of 80PRB to transmit at most, and employing is in the technical scheme of this example, by reduction terminating stage SRS bandwidth, adopt the maximum configurable SRS transmission bandwidth configurating terminal level SRS bandwidth of reduction back terminating stage, effectively cell-level SRS bandwidth is increased to 88PRB, thereby improves the reliability of frequency domain selectivity scheduling.
In embodiments of the present invention, because cell-level SRS bandwidth is less than the PUSCH of system bandwidth, part PUSCH bandwidth then can occur can not be by the detection of SRS signal, for fear of this problem, increase terminating stage SRS bandwidth, adopting increases the maximum configurable SRS band width configuration terminating stage SRS transmission bandwidth in back, and as shown in Figure 4, a kind of method the 3rd embodiment that increases the SRS of system bandwidth can comprise in the embodiment of the invention:
401, if cell-level SRS bandwidth less than the PUSCH of system bandwidth, obtains the node location of PUSCH idle bandwidth according to the node location information of each transmitting SRS frequency domain;
In the step 401, terminal obtains PUCCH bandwidth occupancy PRB position according to cell broadcast messages, thereby obtains the PRB position of the pairing PUCCH bandwidth occupancy of lower sideband on second time slot; And terminal obtains the original position of the SRS frequency domain of each transmission according to terminating stage SRS length, the terminating stage SRS indication that the SRS length of this terminal issues according to the base station obtains, and terminal is according to PRB position and the original position acquisition SRS bandwidth of SRS frequency domain and the node location at PUCCH idle bandwidth place of the PUCCH bandwidth occupancy that obtains.
402, according to the node location of this idle bandwidth, increase the terminating stage SRS bandwidth of this cell-level SRS bandwidth correspondence, adopting increases the maximum configurable SRS band width configuration terminating stage SRS transmission bandwidth of back terminating stage.
Wherein, 402 steps can comprise, select SRS band width configuration terminating stage SRS bandwidth in the SRS bandwidth configuration table, this terminating stage SRS bandwidth is greater than the terminating stage SRS bandwidth that does not increase, and smaller or equal to the node bandwidth length and the vacant PUSCH bandwidth sum that do not increase before the terminating stage SRS bandwidth.In available terminal level SRS bandwidth range, select terminating stage SRS bandwidth maximum in this terminating stage SRS bandwidth range; If available terminal level SRS bandwidth is not arranged, select not increase the preceding node ' s length of terminating stage SRS bandwidth.
If the node bandwidth that clashes with PUCCH is in the existing configuration during minimum SRS configuration, this node transmitting SRS signal no longer then.
The technical scheme of embodiment is an example with the 20MHz system bandwidth still below for a better understanding of the present invention, does further and introduces in detail.
Available bandwidth is 100PRB in the 20MHz system, when PUCCH bandwidth occupancy 5PRB, can be used as the PUSCH transmission bandwidth is 95PRB, the base station is that the SRS bandwidth and the PUCCH that avoid terminal to send clash, be about to cell-level SRS and be configured to 80PRB, so all terminals=2 in the notifying cell, therefore can occurring partly, the PUSCH bandwidth can not detect by the SRS signal.
When terminal during at part bandwidth for transmission SRS signal, if terminating stage SRS configuration B
SRSNeeds carried out frequency hopping in=1 o'clock, by the 1 terminating stage SRS bandwidth m as can be known that tables look-up
SRS, 1Be 40PRB, the node number is 2, then needs to carry out the cell-level SRS bandwidth that twice frequency hopping transmission covers 80PRB.Because can be used as the PUSCH transmission bandwidth is 95PRB, so part PUSCH bandwidth can occur can not detect by the SRS signal, for fear of this problem, at first to judge and have vacant PUSCH bandwidth node location, because the PUCCH bandwidth takies the bandwidth of two sideband 5PRB respectively, therefore, the PUCCH bandwidth is numbered PRB#0, PRB#1, PRB#97, PRB#98, PRB#99 at the PRB of second Time Slot Occupancy correspondence, and that PUSCH bandwidth location numbering is corresponding is PRB#4 to PRB#97.Because corresponding 2 nodes of terminal carry out the transmission of SRS frequency hopping, the frequency domain original position of SRS each frequency hopping node correspondence in the mapping of upstream bandwidth can be passed through formula
Calculate acquisition, the position that corresponding node frequency domain original position is respectively node 0 covers PRB#10-PRB#49 at PRB#10 in this nodal terminal level SRS bandwidth, and the position of node 1 covers PRB#50-PRB#89 at PRB#50 in this nodal terminal level SRS bandwidth.Can judge node 0 by node PRB numbering and fail to detect the PUSCH bandwidth with middle vacant 8 SRS of lower sideband PUCCH, node 1 does not detect the PUSCH bandwidth with middle empty 7 SRS of upper sideband PUCCH, therefore, need in the SRS bandwidth configuration table, choose an available terminal level SRS bandwidth, this terminating stage SRS bandwidth is greater than the terminating stage SRS bandwidth that does not increase, and smaller or equal to the node bandwidth length and the vacant PUSCH bandwidth sum that do not increase before the terminating stage SRS bandwidth.
If in available terminal level SRS bandwidth range, select terminating stage SRS bandwidth maximum in this terminating stage SRS bandwidth range; If whole selectable terminating stage SRS bandwidth and PUCCH bandwidth clash, then select not increase the preceding node bandwidth length of terminating stage SRS bandwidth.In an embodiment, for node 1, existing nodal terminal level SRS bandwidth length is 40, and vacant PUSCH bandwidth length is 7, owing to can not find available terminating stage SRS bandwidth in the existing SRS bandwidth configuration table, therefore select not increase the preceding node bandwidth length of terminating stage SRS bandwidth, be that terminating stage SRS band width configuration is 40, for node 0, existing nodal terminal level SRS bandwidth length is 40, vacant PUSCH bandwidth length is 8, and can select length by the SRS bandwidth configuration table is 48 configuration.The frequency domain original position of node 0 also will move according to the terminating stage SRS bandwidth location of new configuration, promptly reduces the position of 48PRB-40PRB=8PRB, and promptly the frequency domain original position of the SRS of node 0 correspondence is PRB# 3.
SRS frequency hopping transmission by two nodes can make cell-level SRS bandwidth cover up 88PRB, can guarantee like this to send SRS on bandwidth as much as possible, avoids simultaneously clashing with PUSCCH.
By technique scheme as can be seen, for fear of conflicting of SRS bandwidth that terminal sent and PUCCH bandwidth, cell-level SRS bandwidth length can only select the SRS of 80PRB to transmit at most, and employing is in the technical scheme of this example, by increasing the terminating stage SRS bandwidth of this cell-level SRS correspondence, adopting increases the maximum configurable SRS band width configuration terminating stage SRS transmission bandwidth of back terminating stage, effectively cell-level SRS bandwidth is increased to 88B, thereby to improve the reliability of frequency domain selectivity scheduling.。
Below with by the deviant parameter, avoid SRS bandwidth that terminal sends and PUCCH bandwidth to clash and be example, be elaborated, as shown in Figure 5, a kind of method the 4th embodiment that increases the SRS of system bandwidth can comprise in the embodiment of the invention:
501, receive cell-level SRS configuration messages, this message is carried cell-level SRS deviant parameter;
Wherein, the base station obtains this cell-level SRS deviant parameter according to the value of vacant PUSCH bandwidth in the system.Base station notice terminal cell-level SRS configuration messages, this message is carried cell-level SRS deviant parameter, and this cell-level SRS configuration messages can be notified the terminal use by high-level signaling or physical layer signaling that the base station sends.For fear of the SRS bandwidth of terminal transmission and conflicting of PUCCH bandwidth, the value of cell-level SRS deviant should be less than existing terminating stage SRS bandwidth and the minimum value of vacant PUSCH bandwidth between the PUCCH bandwidth up and down, obtains this cell-level SRS deviant parameter according to the value of vacant PUSCH bandwidth in the system.
502, determine to send terminating stage SRS start position according to this deviant parameter.
The base station need be judged not by the quantity of SRS width monitoring to the PUSCH bandwidth by shared bandwidth location of PUCCH and cell-level SRS bandwidth.In this embodiment, be the example explanation still in this embodiment with the 20MHz system bandwidth, available resources are 100PRB in the 20MHz system, if the PUSCH transmission bandwidth is 95PRB, cell-level SRS bandwidth is 80RB, therefore total 15RB can not utilize SRS to detect.Base station notifying cell level SRS deviant makes SRS can cover different zones respectively in each transmission, and makes the SRS bandwidth cover more PUSCH zone.Usually after terminal is carried out a full cell level SRS transmission, change the position of terminating stage SRS starting point.
The base station is that SRS bandwidth and the PUCCH bandwidth of avoiding terminal to send clash, is about to cell-level SRS and is configured to 80PRB, so all terminal C in the notifying cell
SRS=2.Therefore part PUSCH bandwidth can occur can not be detected by the SRS signal.
For solving in the prior art PUSCH bandwidth of vacant 8PRB between SRS bandwidth and upper sideband PUCCH, the PUSCH bandwidth of vacant 7PRB between SRS bandwidth and lower sideband PUCCH.Therefore in this embodiment, the value of cell-level SRS deviant is 7.As terminating stage SRS configuration B
SRS=0 o'clock, terminating stage SRS bandwidth m
SRS, 0Be 80PRB, the node number is 1, and the value of terminating stage SRS deviant is 7.Whenever carry out 1 SRS and transmit the cell-level SRS bandwidth that can cover 80PRB.
Because 5 PRB of PUCCH bandwidth take the PRB bandwidth of two sidebands respectively, therefore, the PUCCH bandwidth is numbered PRB#0PRB# 1 at the PRB of second Time Slot Occupancy correspondence, PRB# 97, PRB# 98, PRB# 99, that corresponding PUSCH bandwidth location numbering is corresponding is PRB# 3 to PRB#96.
The frequency domain original position of SRS each frequency hopping node correspondence in the mapping of upstream bandwidth can be passed through formula
Obtain,
In embodiments of the present invention, the base station sends cell-level SRS configuration messages to terminal, this cell-level SRS configuration messages carries cell-level SRS deviant parameter, determine to send terminating stage SRS start position according to this deviant parameter, this message is by changing the position of cell-level SRS mapping, on each cell-level SRS transmission opportunity, change the original position of cell-level SRS system bandwidth,, increased the SRS bandwidth that to measure so that make more covering system PUSCH bandwidth of SRS by this deviant.Relatively with the prior art scheme, when if the shared zone of PUCCH bandwidth is 5PRB, for fear of conflicting of SRS bandwidth that terminal sent and PUCCH bandwidth, cell-level SRS bandwidth length can only select the SRS of 80PRB to transmit at most, and can effectively cell-level SRS bandwidth be increased to 94PRB by the scheme among this embodiment.
Below with by the deviant parameter, avoid SRS bandwidth that terminal sends and PUCCH bandwidth to clash and be example, be elaborated, as shown in Figure 6, a kind of method the 5th embodiment that increases the SRS of system bandwidth can comprise in the embodiment of the invention:
601, the value according to the hollow excess reason Uplink Shared Channel PUSCH of system bandwidth obtains cell-level SRS deviant parameter;
602, send described cell-level SRS configuration parameter to terminal, described cell-level SRS configuration messages carries cell-level SRS deviant parameter.
Avoid this problem, in the present invention, the base station sends cell-level SRS configuration messages to terminal, this cell-level SRS configuration messages carries cell-level SRS deviant parameter, determine to send terminating stage SRS start position according to this deviant parameter, this message changes the original position of cell-level SRS system bandwidth, so that make more covering system PUSCH bandwidth of SRS by changing the position of cell-level SRS mapping by this deviant on each cell-level SRS transmission opportunity.
As shown in Figure 7, be 61 kinds of user device architecture schematic diagrames of the embodiment of the invention, specifically comprise:
Adjusting module 701 is used for adjusting the terminating stage SRS bandwidth of cell-level SRS bandwidth correspondence according to receiving the SRS bandwidth information;
Wherein, adjusting module 701 comprises:
Adjusting module 1, when being used for cell-level SRS bandwidth greater than the PUSCH of system bandwidth, the bandwidth of reducing the described terminal utmost point;
Adjusting module 2 7014 is used for cell-level SRS bandwidth less than the PUSCH of system bandwidth, increases described terminating stage SRS bandwidth.
This configuration module comprises:
Configuration module one comprises selects module 1, is used for the SRS band width configuration terminating stage SRS bandwidth of selecting the most approaching reduction of terminating stage not clash with the PUCCH bandwidth in the SRS bandwidth configuration table.
Configuration module two comprises selects module 2 70221, be used for selecting terminating stage SRS bandwidth in the SRS bandwidth configuration table, described terminating stage SRS bandwidth is greater than the terminating stage SRS bandwidth that does not increase, and smaller or equal to the node bandwidth length and the vacant PUSCH bandwidth sum that do not increase before the terminating stage SRS bandwidth.It is terminating stage SRS bandwidth maximum in the described terminating stage SRS bandwidth range that described selection module two is selected available terminal level SRS bandwidth range, if select module two whole selectable terminating stage SRS bandwidth and PUCCH bandwidth to clash, then select module two to select not increase the preceding node bandwidth length of terminating stage SRS bandwidth.
Configuration module 7,023 three is used for the terminating stage SRS bandwidth according to new selection, disposes the frequency domain start position of corresponding SRS node.
By technique scheme as can be seen, in the present embodiment, receive the SRS bandwidth information, adjust terminating stage SRS bandwidth, according to the maximum configurable SRS band width configuration SRS transmission bandwidth of described adjusted terminating stage, thereby can have been improved the reliability of frequency domain resource selectivity scheduling by the detected frequency domain resource of SRS in the increase system.
As shown in Figure 8, be embodiment of the invention kind July 1st user device architecture schematic diagram, specifically comprise:
Receiver module 801 is used to receive cell-level SRS configuration messages, and this cell-level SRS configuration messages carries cell-level SRS deviant parameter;
Wherein, the SRS deviant parameter of this receiver module reception comprises that the base station obtains described cell-level SRS deviant parameter according to the value of vacant PUSCH bandwidth in the system.
Processing module 802 is used for determining to send cell-level SRS start position according to this deviant parameter.
In embodiments of the present invention, the base station sends cell-level SRS configuration messages to terminal, this cell-level SRS configuration messages carries cell-level SRS deviant parameter, determine to send terminating stage SRS start position according to this deviant parameter, this message is by changing the position of cell-level SRS mapping, on each cell-level SRS transmission opportunity, change the original position of cell-level SRS system bandwidth,, increased the SRS bandwidth that to measure so that make more covering system PUSCH bandwidth of SRS by this deviant.
As shown in Figure 9, be embodiment of the invention Aug. 1st kind architecture of base station schematic diagram, specifically comprise:
Acquisition module 901 is used for obtaining cell-level SRS deviant parameter according to the value of the vacant PUSCH bandwidth of system;
Sending module 902 is used for sending cell-level SRS configuration parameter to terminal, and this cell-level configuration messages carries cell-level SRS deviant parameter.
In embodiments of the present invention, the base station sends cell-level SRS configuration messages to terminal, this cell-level SRS configuration messages carries cell-level SRS deviant parameter, determine to send terminating stage SRS start position according to this deviant parameter, this message is by changing the position of cell-level SRS mapping, on each cell-level SRS transmission opportunity, change the original position of cell-level SRS system bandwidth,, increased the SRS bandwidth that to measure so that make more covering system PUSCH bandwidth of SRS by this deviant.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, do not have the part that describes in detail among certain embodiment, can be referring to the associated description of other embodiment.
The common skill in this area state whole in the whole bag of tricks that personnel are appreciated that the foregoing description or partly step be can cross program to instruct relevant hardware to finish, this program can be stored in the computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.
More than provide a kind of method that increases the SRS of system bandwidth to the embodiment of the invention, device is described in detail, having used a concrete example herein sets forth principle of the present invention and execution mode, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept, simultaneously, one of ordinary skill in the art, according to thought of the present invention, part in specific embodiments and applications all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (21)
1. one kind increases the method that reference signal SRS bandwidth is monitored by system, it is characterized in that, comprising:
Adjust the terminating stage SRS bandwidth of cell-level SRS bandwidth correspondence according to the SRS bandwidth information that receives;
According to the maximum configurable SRS band width configuration SRS transmission bandwidth of described adjusted terminating stage.
2. method according to claim 1 is characterized in that, comprising:
If cell-level SRS bandwidth is greater than the PUSCH of system bandwidth, then described adjustment comprises the terminating stage SRS bandwidth of reducing described cell-level SRS bandwidth correspondence, then comprises according to the maximum configurable SRS band width configuration SRS transmission bandwidth of described adjusted terminating stage and adopts the maximum configurable SRS band width configuration terminating stage SRS transmission bandwidth of reduction back terminating stage;
If cell-level SRS bandwidth is less than the PUSCH of system bandwidth, then described adjustment comprises the terminating stage SRS bandwidth that increases described cell-level SRS bandwidth correspondence, then can join SRS band width configuration SRS transmission bandwidth according to described adjusted terminating stage maximum and comprise that employing increases the maximum configurable SRS band width configuration terminating stage SRS transmission bandwidth of back terminating stage.
3. method according to claim 2 is characterized in that, also comprises before the terminating stage SRS bandwidth of the described cell-level SRS bandwidth of described reduction correspondence:
Obtain the node location that terminating stage SRS bandwidth and Physical Uplink Control Channel PUCCH bandwidth clash according to the node location information of each transmitting SRS frequency domain;
The terminating stage SRS bandwidth of the described cell-level SRS bandwidth of then described reduction correspondence comprises the node location that clashes according to described, reduces the terminating stage SRS bandwidth of described cell-level SRS bandwidth correspondence.
4. according to claim 2 or 3 described methods, it is characterized in that the maximum configurable SRS band width configuration terminating stage SRS transmission bandwidth of described employing reduction back terminating stage comprises:
In the SRS bandwidth configuration table, select the most approaching not SRS bandwidth of reduction of terminating stage, and the terminating stage SRS band width configuration terminating stage SRS transmission bandwidth that does not clash with the PUCCH bandwidth.
5. method according to claim 2 is characterized in that, before the terminating stage SRS bandwidth of the described cell-level SRS bandwidth of described increase correspondence, comprising:
Obtain the node location of PUSCH idle bandwidth according to the node location information of each transmitting SRS frequency domain;
The terminating stage SRS bandwidth of the described cell-level SRS bandwidth of then described increase correspondence comprises the node location according to described idle bandwidth, increases the terminating stage SRS bandwidth of described cell-level SRS bandwidth correspondence.
6. method according to claim 5, described employing increase the maximum configurable SRS band width configuration terminating stage SRS transmission bandwidth of back terminating stage and comprise:
In the SRS bandwidth configuration table, select the terminating stage SRS bandwidth that increases greater than not, described selection greater than the terminating stage SRS bandwidth that does not increase smaller or equal to the node bandwidth length and the vacant PUSCH bandwidth sum that do not increase before the terminating stage SRS bandwidth.
7. method according to claim 6 is characterized in that, the described selection in the SRS bandwidth configuration table comprises greater than the terminating stage SRS bandwidth that does not increase:
In available terminal level SRS bandwidth range, select terminating stage SRS bandwidth maximum in the described terminating stage SRS bandwidth range; If whole selectable terminating stage SRS bandwidth and PUCCH bandwidth clash, then select not increase the preceding node bandwidth length of terminating stage SRS bandwidth.
8. method according to claim 2 is characterized in that, described method also comprises:
According to the terminating stage SRS bandwidth of new selection, dispose the frequency domain start position of corresponding SRS node.
9. one kind increases the method that reference signal SRS bandwidth is monitored by system, it is characterized in that, comprising:
Receive cell-level SRS configuration messages, described cell-level SRS configuration messages carries cell-level SRS deviant parameter; Determine to send cell-level SRS start position according to described deviant parameter.
10. method according to claim 9 is characterized in that, described cell-level SRS configuration messages carries cell-level SRS deviant parameter and comprises:
The base station is according to the described cell-level SRS deviant parameter of the value acquisition of vacant PUSCH bandwidth in the system.
11. one kind increases the method that reference signal SRS bandwidth is monitored by system, it is characterized in that, comprising:
Value according to the hollow excess reason Uplink Shared Channel PUSCH of system bandwidth obtains cell-level SRS deviant parameter;
Send described cell-level SRS configuration parameter to terminal, described cell-level SRS configuration messages carries cell-level SRS deviant parameter.
12. a subscriber equipment is characterized in that, comprising:
Adjusting module is used for the terminating stage SRS bandwidth according to the SRS bandwidth information adjustment cell-level SRS bandwidth correspondence that receives;
Configuration module is used for according to the maximum configurable SRS band width configuration SRS transmission bandwidth of described adjusted terminating stage.
13. subscriber equipment according to claim 12 is characterized in that, described adjusting module comprises:
Adjusting module one when being used for cell-level SRS bandwidth greater than the PUSCH of system bandwidth, reduces the terminating stage SRS bandwidth of described cell-level SRS bandwidth correspondence;
Adjusting module two is used for cell-level SRS bandwidth less than the PUSCH of system bandwidth, increases the terminating stage SRS bandwidth of described cell-level SRS bandwidth correspondence.
14. subscriber equipment according to claim 13 is characterized in that, described subscriber equipment further comprises:
Acquisition module one is used for the node location information acquisition terminating stage SRS bandwidth of the each transmitting SRS frequency domain of basis and the node location that Physical Uplink Control Channel PUCCH bandwidth clashes;
Then described adjusting module one specifically is used for the node location that clashes according to described, reduces the terminating stage SRS bandwidth of described cell-level SRS bandwidth correspondence;
Acquisition module two is used for the node location according to the node location information acquisition PUSCH idle bandwidth of each transmitting SRS frequency domain;
Then described adjusting module two specifically is used for the node location according to described idle bandwidth, increases the terminating stage SRS bandwidth of described cell-level SRS bandwidth correspondence.
15. subscriber equipment according to claim 12 is characterized in that, described configuration module comprises:
Configuration module one is used for adopting the maximum configurable SRS band width configuration terminating stage SRS transmission bandwidth of reduction back terminating stage;
Configuration module two is used for adopting the maximum configurable SRS band width configuration terminating stage SRS transmission bandwidth of increase back terminating stage.
16. subscriber equipment according to claim 15 is characterized in that, described configuration module one comprises:
Select module one, be used for the SRS band width configuration terminating stage SRS transmission bandwidth of selecting the most approaching reduction of terminating stage not clash with the PUCCH bandwidth in the SRS bandwidth configuration table.
17. subscriber equipment according to claim 15 is characterized in that, described configuration module two comprises:
Select module two, be used for selecting terminating stage SRS bandwidth in the SRS bandwidth configuration table, described terminating stage SRS bandwidth is greater than the terminating stage SRS bandwidth that does not increase, and smaller or equal to the node bandwidth length and the vacant PUSCH bandwidth sum that do not increase before the terminating stage SRS bandwidth.It is terminating stage SRS bandwidth maximum in the described terminating stage SRS bandwidth range that described selection module two is selected available terminal level SRS bandwidth range, if select module two whole selectable terminating stage SRS bandwidth and PUCCH bandwidth to clash, then select module two to select not increase the preceding node bandwidth length of terminating stage SRS bandwidth.
18. subscriber equipment according to claim 12 is characterized in that, described configuration module also comprises:
Configuration module three is used for the terminating stage SRS bandwidth according to new selection, disposes the frequency domain start position of corresponding SRS node.
19. a subscriber equipment that increases the SRS of system bandwidth is characterized in that, comprising:
Receiver module is used to receive cell-level SRS configuration messages, and described cell-level SRS configuration messages carries cell-level SRS deviant parameter;
Processing module is used for determining to send cell-level SRS start position according to described deviant parameter.
20. the described subscriber equipment of described claim 19 is characterized in that, the cell-level SRS deviant parameter that described receiver module receives comprises that the base station obtains described cell-level SRS deviant parameter according to the value of vacant PUSCH bandwidth in the system.
21. a base station is characterized in that, comprising:
Acquisition module is used for obtaining cell-level SRS deviant parameter according to the value of the vacant PUSCH bandwidth of system;
Sending module is used for sending cell-level SRS configuration parameter to terminal, and described cell-level configuration messages carries cell-level SRS deviant parameter.
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| CN101340383A (en) * | 2008-08-07 | 2009-01-07 | 中兴通讯股份有限公司 | Bandwidth determining method |
| CN101404817B (en) * | 2008-11-24 | 2010-09-29 | 华为技术有限公司 | SRS band width collocation method, system and apparatus |
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