CN101272593A - Scheduling method and device for ascending channel detecting pilot frequency - Google Patents
Scheduling method and device for ascending channel detecting pilot frequency Download PDFInfo
- Publication number
- CN101272593A CN101272593A CNA2007100646377A CN200710064637A CN101272593A CN 101272593 A CN101272593 A CN 101272593A CN A2007100646377 A CNA2007100646377 A CN A2007100646377A CN 200710064637 A CN200710064637 A CN 200710064637A CN 101272593 A CN101272593 A CN 101272593A
- Authority
- CN
- China
- Prior art keywords
- signaling
- subscriber equipment
- channel
- frequency domain
- scheduling signaling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000001174 ascending effect Effects 0.000 title claims description 15
- 230000011664 signaling Effects 0.000 claims abstract description 131
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 230000006870 function Effects 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 11
- 238000012163 sequencing technique Methods 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000003139 buffering effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000006854 communication Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012797 qualification Methods 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Abstract
The invention provides a method for dispatching a detection pilot on an uplink channel, which comprises the following steps: according to a sequence of an uplink/downlink dispatching signaling of a piece of user equipment in a channel structure, the sending of the detection pilot on the uplink channel is controlled. The method rapidly and dynamically collocates the detection pilot on the uplink channel, thus flexibly adapting to the transmission change of the user equipment and saving system resource. At the same time, the invention also provides a dispatcher of the detection pilot on the uplink channel.
Description
Technical field
The present invention relates to Long Term Evolution (Long term Evolution, LTE) the dispatching technique field in the research of mobile communication; Relate in particular to a kind of dispatching method and scheduler of ascending channel detecting pilot frequency.
Background technology
The LTE technology is called as " evolved 3G " (Evolued 3G), and (OrthogonalFrequency Division Multiplexing OFDM) is core with OFDM.
In the communication system, what ascending pilot frequency was mainly used in data separates the mediation channel quality estimation.In LTE research, determine to adopt multi-transceiver technology.The ascending pilot frequency of having determined comprises two classes at present:
● data demodulates reference symbol: be used for upstream data and separate the mediation detection, be called data demodulates (DataDemodulation, DM) pilot tone;
● quality is estimated reference symbol: be used for up link and estimate that (Channel Sounding, CS) pilot tone or ascending channel detecting pilot frequency below all are called for short the CS pilot tone at frequency domain or/and time domain, is called uplink signal-channel quality based on the scheduling of channel.
Wherein, the transmission bandwidth of DM pilot tone usually and upstream data synchronous; And the CS pilot tone does not send with upstream data usually simultaneously, when perhaps sending simultaneously, at least take different frequency bands, because only in this way, (evolution Node B eNB) with reference to the CS pilot tone, carries out quality to channel and estimates could to guarantee evolved base station, realize among the LTE subscriber equipment (User Equipment, UE) scheduling based on channel quality.As seen, rational management CS pilot tone is based on the assurance of channel quality scheduling UE.
Existing C S pilot tone scheduling scheme is: the UE that is scheduled sends the CS pilot tone periodically, regularly according to system configuration on scheduling bandwidth.After eNB receives the CS pilot tone, the channel in the scheduling bandwidth is carried out quality estimate, and finish the uplink data scheduling transmission.
According to existing scheme, can on scheduling bandwidth, mark a part of resource specially, be used to transmit the CS pilot tone of a plurality of UE, for example, last arranges OFDM symbol as being specifically designed to the resource that sends the CS pilot tone with each TTI.Below will be specifically designed to the resource that sends the CS pilot tone and abbreviate " pilot resources " as.
Referring to Fig. 1, be the scheduling schematic diagram of prior art CS pilot tone, big square is represented the transfer of data of the UE that is scheduled, UE1, UE2, UE3 and UE4 are arranged at the enterprising line data transmission of scheduling bandwidth W; Blockage A, B, C and D represent the CS of UE1, UE2, UE3 and UE4 respectively.Wherein, the transmission cycle of the CS pilot tone of each UE is fixed as 1 TTI, and bandwidth is W, and (Frequency Division Multiplexing, FDM) mode is intersected together multiplexing with frequency division multiplexing on last OFDM symbol of each TTI.ENB measures the channel quality of each UE according to the CS pilot tone that each UE sends, and realizes dispatching based on channel quality UE on bandwidth W.
In Fig. 1, send the CS pilot tone of which UE and the CS pilot tone of each UE and fix in the position of pilot resources, the CS pilot tone is followed successively by from left to right in the position of pilot resources among the figure: UE1CS, UE2CS, UE3CS and UE4CS.As seen, the position of CS pilot tone on pilot resources of each UE is semi-static, finished by corresponding signaling configuration by eNB when establishing a communications link.So-called semi-static, be meant in a period of time and it does not adjusted, generally when beginning, finishes communication process configuration, in communication process, no longer change.
There are following two point defects in existing scheme:
(1) the open ended CS pilot number of pilot resources will be limited in the quantity of the UE that can be scheduled in the scheduling bandwidth.
This be because, the open ended CS pilot number of resource that is used to send the CS pilot tone is certain, as in Fig. 1, each pilot resources can hold 4 CS pilot tones, so, and in a dispatching cycle TTI, eNB can only learn 4 UE corresponding channel quality that this is fixing at most, because eNB is to the scheduling of UE implementation based on channel quality, so, the quantity of eNB scheduling UE can only be limited within these 4.If there is more UE to need scheduling, because the restriction of CS resource, eNB can not learn more UE place channel quality, also just can not carry out dispatching based on channel quality to more UE in same scheduling bandwidth.
(2) the semi-static CS pilot tone scheduling mode in the existing scheme is dumb, can't adapt to the needs that the UE transmission changes.
As in Fig. 1, UE4 no longer carries out data for a certain reason and sends (for example, it is empty that UE4 sends buffering area) in follow-up TTIn+1 dispatching cycle, TTIn+2, TTIn+3, but existing scheme still can send corresponding C S pilot tone, the waste resource.If reconfigure the multiplexing structure of CS pilot tone, just need eNB to send control signaling in addition, these processes all can reduce efficiency of resource.
Summary of the invention
In view of this, the invention provides a kind of CS pilot tone dispatching method and scheduler, limit UE quantity and the inflexible problem of scheduling mode of being scheduled in order to solve existing scheme.
For this reason, the embodiment of the invention adopts following technical scheme:
A kind of dispatching method of CS pilot tone comprises step: according on each UE/order of descending scheduling signaling in channel architecture, control the transmission of the CS pilot tone of each UE.
The described process that sends according to signaling sequence control pilot tone: judge on each UE/time order and function that the descending scheduling signaling occurs on channel; According to time sequencing, send the CS pilot tone of each UE.
The described process that sends according to signaling sequence control pilot tone: judge on each UE/the descending scheduling signaling is in the sequence of positions of channel frequency domain; According to sequence of positions, send the CS pilot tone of each UE.
The described process that sends according to signaling sequence control pilot tone is: respectively with the time domain of channel and frequency domain two reference axis as quadrature; Judge each subscriber equipment on/the descending scheduling signaling is in the zone of coordinate domain; According to the order in described zone, send the ascending channel detecting pilot frequency of each subscriber equipment.
Also comprise: dynamically adjust on each UE/the descending scheduling signaling appears at the time sequencing on the channel.
Also comprise: on each UE monitor channel on all/time sequencing of descending scheduling signaling, calculate self numbering; Each UE is attached to self numbering on the pairing position of pilot resources with self pilot tone, waits to be sent.
Also comprise: dynamically adjust on each UE/position of descending scheduling signaling on the channel frequency domain.
Also comprise: on each UE monitors and resolves on the channel/the descending scheduling signaling, know that each signaling is in the position of frequency domain, calculate self numbering; Each UE is attached to self numbering on the pairing position of pilot resources with self pilot tone, waits to be sent.
Also comprise: NB obtains each UE channel quality information, and timing respectively; Preferential in chronological order in big UE transmissions of clocking value/the descending scheduling signaling, or preferentially that clocking value is big UE on/the descending scheduling signaling is arranged on the channel frequency domain.
Also comprise: NB monitors each UE grade of service; Preferential in high UE transmissions of the grade of service/the descending scheduling signaling, perhaps, on preferentially that the grade of service is the high UE/the descending scheduling signaling is arranged on the channel frequency domain.
The described grade of service is divided according to data buffer zone data volume size, perhaps, divides according to the real-time of data buffer zone data.
A kind of scheduler of CS pilot tone comprises that signaling is provided with the unit, is provided with on each UE/the descending scheduling signaling according to channel architecture; On the described UE foundation/and the order of descending scheduling signaling in channel architecture, send the CS pilot tone.
Also comprise: the structure decision unit, judge that channel architecture is that mode according to time, frequency domain position or time and frequency domain position combination makes up, and notify described signaling that the unit is set according to which kind of structure described signaling is set; Described signaling is provided with the unit, according to the notice of described structure decision unit, according to time order and function or frequency domain position order or time order and function and frequency domain position order, is provided with/the descending scheduling signaling.
Also comprise: timer is used for picking up counting when obtaining the channel quality information of described UE; Judging unit knows that when the unit is set from described signaling signaling is provided with when being the time, preferentially send the big UE of clocking value on/the descending scheduling signaling; When knowing that signaling is provided with when being frequency domain position, the uplink scheduling signaling of preferential that clocking value is big UE is arranged on the frequency domain.
Also comprise: the buffering area monitoring means is used to monitor the UE buffer area data volume; Selected cell knows that when the unit is set from described signaling signaling is provided with when being the time, preferentially send the big or buffer memory real-time data of buffer area data volume UE on/the descending scheduling signaling; When knowing that signaling is provided with when being frequency domain position, preferentially with on the buffer area data volume UE big or buffer memory real-time data/the descending scheduling signaling is arranged on the channel frequency domain.
Technique effect for technique scheme is analyzed as follows:
(1) the present invention is according to the scheduling channel structure, according on the UE/descending scheduling signaling time-frequency order in channel, control sends the CS pilot tone.The present invention sends the CS pilot tone and carries out quick dynamic-configuration, the delivery plan of CS pilot tone is different in each dispatching cycle, like this, just allow more UE to utilize limited CS pilot resources to send self CS pilot tone, can make the quality information of eNB acquisition above the UE of the CS pilot tone number of pilot resources restriction, thereby eNB no longer is subjected to pilot resources can hold the restriction of CS pilot tone number to the scheduling of UE.
(2) position of CS pilot tone on pilot resources with respect to each UE of prior art is semi-static defective, the present invention carries out quick dynamic-configuration to the transmission of CS pilot tone, but the variation of flexible adaptation UE transmission, for example, when certain UE buffered data is sky, eNB can no longer arrange to send the CS pilot tone, thereby saves system resource.
Description of drawings
Fig. 1 is a prior art CS pilot tone scheduling schematic diagram;
Fig. 2 is the inventive method embodiment one flow chart;
Fig. 3 is the inventive method embodiment one dispatch numbering schematic diagram;
Fig. 4 a is the inventive method embodiment one CS pilot tone scheduling schematic diagram one;
Fig. 4 b is the inventive method embodiment one CS pilot tone scheduling schematic diagram two;
Fig. 5 is the inventive method embodiment two flow charts;
Fig. 6 a is scheduler embodiment one structural representation of the present invention;
Fig. 6 b is scheduler embodiment two structural representations of the present invention;
Fig. 6 c is scheduler embodiment three structural representations of the present invention.
Embodiment
Core idea of the present invention is, according to UE uplink scheduling signaling place channel architecture characteristics, dynamic dispatching CS pilot tone.Below in conjunction with accompanying drawing, embodiment of the present invention is described in detail.
At first, introduce the embodiment of the invention one.
By front background technology introduction as can be known, in the existing C S pilot tone scheduling scheme, the position of CS pilot tone on pilot resources of each UE is pre-configured, and the long period can not change; If change, also need eNB to resend configuration signal, understand occupying system resources like this.The semi-persistent scheduling strategy that is different from existing scheme, the present invention adopts a kind of scheme of brand-new dynamic dispatching CS pilot tone.
Referring to Fig. 2, be embodiment one flow chart.
Embodiment one may further comprise the steps:
Step 201: determine UE uplink scheduling signaling place channel architecture characteristics;
Step 202: according to the order of signaling in channel architecture, control sends the CS pilot tone of each UE.
The front is by the agency of, and the open ended CS pilot tone of each pilot resources number is certain.So, with respect to the mode of predetermined fixed configuration, this programme is provided with the uplink scheduling signaling numbering of each UE that can send the CS pilot tone, is equivalent to introducing " competition mechanism " between the UE: send the CS pilot tone according to number order on the pilot resources position.
In addition, under the default setting, there is certain corresponding relation in UE uplink scheduling signaling numbering with the position of pilot resources, that is to say, UE is according to the numbering of self dispatch, the CS pilot tone is placed on the relevant position of pilot resources to send.
By introducing this competition mechanism, can realize dynamic dispatching to the CS pilot tone, reason is that according to the corresponding relation of sequence number and pilot resources position, the UE of specific numbers (as coming front or back) preferentially is allowed to send the CS pilot tone on the relevant position.
Suppose 10 UE of eNB scheduling, just eNB has all assigned the uplink scheduling signaling to these 10 UE, and by each uplink scheduling signaling numbering is set, the numbering of these 10 UE is unique and a definite sequence arranged; Simultaneously, suppose only can hold on the pilot resources 4 CS pilot tones, and set the forward qualified transmission of the UE CS pilot tone of numbering.So, come preceding 4 UE of numbering and can send the CS pilot tone on the corresponding pilot resources position of numbering, the UE after numbering is leaned on does not have " qualification " to send the CS pilot tone.But, when the system communication situation changes, can cause the uplink scheduling signaling number order of these 10 UE to change, so, which UE have " qualification " send the CS pilot tone also natural occurring variation.
As seen, because according to uplink scheduling signaling numbering scheduling CS pilot tone, and uplink scheduling signaling numbering can be along with system communication situation real-time change, thereby has realized the dynamic dispatching to the CS pilot tone.
For the numbering of the uplink scheduling signaling that each UE is set, can set according to channel time-frequency structure characteristics.Particularly, numbering for uplink scheduling signaling of the present invention, can be according to each UE uplink scheduling signaling in time order and function that occurs on the control channel or the position on frequency domain or take all factors into consideration time order and function and the factor of frequency domain position, promptly, each UE uplink scheduling signaling is numbered according to the time-frequency structure of control channel.
Referring to Fig. 3,,, adopt frequency domain position that the uplink scheduling signaling of each UE is numbered herein for each UE uplink scheduling signaling numbering schematic diagram.Because the uplink scheduling signaling of UE3, UE4, UE1, UE5, UE2 occurs successively,, the uplink scheduling signaling numbering of UE3, UE4, UE1, UE5, UE2 is followed successively by 1,2,3,4,5 so being set on frequency domain.Suppose that pilot resources can hold 4 CS pilot tones at most, in the UE of this this scheduling, select preceding 4 to carry out the transmission of CS pilot tone so, just select UE3, UE4, UE1 and UE5 to send the CS pilot tone, and each UE pilot tone is also determined by corresponding numbering in the position of pilot resources.
For further introducing the present invention, set forth below in conjunction with table 1 and Fig. 4 a.
Suppose that the UE that is selected by coding rule in the uplink scheduling signaling of continuous 4 TTI is as shown in the table:
Table 1
Owing in TTIn and TTIn+3, only dispatched 4 UE,, signaling do not exist so being numbered 5 UE; In like manner, signaling is numbered 4 and 5 UE and does not exist among the TTIn+1.
CS pilot tone scheduling process shown in the table 1 is shown in Fig. 4 a.
Among Fig. 4 a, big square is represented the transfer of data of the UE that is scheduled; Blockage A, B, C, D, E and F represent the CS of UE1, UE2, UE3, UE4, UE5 and UE6 respectively.On the pilot resources of each TTI, be numbered 1,2,3 and 4 UE CS and intersect multiplexing in the FDM mode.
The scheduling mode of Fig. 1 relatively has two obvious advantages in the scheduling mode of Fig. 4 a and the prior art, is analyzed as follows respectively:
1) can be in scheduling bandwidth because of the capacity of pilot resources, the quantity of the UE that restriction can be scheduled.
As at TTIn+2,5 UE have been dispatched simultaneously; In whole scheduling bandwidth, can dispatch 6 or more UE.
In the existing scheme, pilot resources only allows 4 UE that fix to send the CS pilot tone on the fixed position of pilot resources, so eNB also can only be known the channel quality of these 4 UE.Because there is not the channel quality information of the 5th UE, also just can't carry out scheduling to it based on channel quality.
And among the present invention, owing to adopt the mode that sends the CS pilot tone according to the dispatch numbering, also just allow more UE to utilize identical pilot resources to send the CS pilot tone, so eNB can obtain to surpass the channel quality information of 4 UE, also just can not be because of the capacity of pilot resources, can the be scheduled quantity of UE of restriction.
But point out 2 points: 1. the quantity of the UE that can dispatch among each TTI is by the decision of the quantity of the UE in the uplink scheduling signaling; Though 2. dispatched 5 UE, had only wherein 4 (decisions of pilot resources capacity) can on pilot resources, send the CS pilot tone at TTIn+ 2.
2) transmission of flexible adaptation UE changes
For example UE6 only is scheduled at TTIn among Fig. 4 a, (not having data as buffering area) for a certain reason in follow-up TTI no longer is scheduled, so since eNB not can assign the uplink scheduling signaling to it or according to coding rule its numbering is provided with lean on after, just can in follow-up TTI, not arrange UE6 to send the CS pilot tone yet, thereby save system resource.
Control the mode that the CS pilot tone sends for taking all factors into consideration UE uplink scheduling signaling at the time order and function of channel appearance and the frequency domain position of appearance, can adopt the mode of coordinate to realize.Specifically be, respectively with the time domain of channel and frequency domain two reference axis as quadrature; Judge each UE on/the descending scheduling signaling is in the zone of coordinate domain; According to the order in zone, send the CS pilot tone of each UE.Referring to Fig. 4 b, with frequency domain as x axle, time domain as Y-axis, according to the uplink scheduling signaling of each UE zone sequence, be divided into numbering 1,2,3 and 4 at coordinate domain, send the CS pilot tone of each UE according to zone number control.Can certainly be with time domain as x axle, frequency domain as the y axle, and zone number can be provided with arbitrarily as required.
Introduce the embodiment of the invention two below:
Embodiment two by eNB and UE concrete steps separately, introduces the present invention more intuitively on the basis of embodiment one.
Suppose eNB scheduling 3 UE:UE1, UE2 and UE3; The open ended CS pilot tone of the pilot resources number that is used to carry the CS pilot tone also is 3; Default adopts time order and function according to its appearance to the coding rule of UE uplink scheduling signaling.
Referring to Fig. 5, the flow chart for the embodiment of the invention two comprises so:
Step 501:eNB assigns the uplink scheduling signaling at scheduling UE on control channel, suppose that the time order and function that these signalings are sent out on control channel is in proper order: UE2, UE1, UE3;
Step 502: each UE monitor channel situation, know at self dispatch at the sequencing of time; So UE2 calculates and self to be numbered 1, UE1 calculate self be numbered 2, UE3 calculates and self is numbered 3;
Step 503: each UE that is scheduled carries out transfer of data according to dispatch;
Step 504: the moment of the transmission pilot tone that is provided with when system is when arriving, and UE2 1 sends CS pilot tone, UE1 and 2 sends CS pilot tones, UE3 and 3 send the CS pilot tones in the pilot resources position in the pilot resources position in the pilot resources position.
State as preceding, have default corresponding relation between the position on the pilot resources and the signaling numbering, just, in step 504, UE can learn to send the CS pilot tone on which position of pilot resources after knowing self numbering.
If system to the coding rule of UE uplink scheduling signaling according to its set positions that on frequency domain, occurs, so in the above-mentioned steps 502, each UE calculates the process of self numbering: the uplink scheduling signaling that receives, resolves all UE that are scheduled, indicate by signaling frequency domain position, know the frequency domain position of self and other UE, thereby determine self numbering.
In like manner, if set numbering according to the mode of time order and function and frequency domain position combination or according to other rules, each UE can pass through the monitor channel situation, perhaps by the resolution scheduling means of signaling, calculates self numbering.
Introduce the embodiment of the invention three below:
On the basis of embodiment two, emphatically to eNB how in a plurality of UE selection scheduling CS pilot tone be introduced.
Suppose that the open ended CS pilot tone of pilot resources number still is 3, and eNB scheduling 5 UE:UE1, UE2, UE3, UE4 and UE5, so, eNB should select wherein 3 to carry out the pilot tone transmission in these 5 UE; These 3 selected UE still send pilot tone according to the numbering that coding rule is determined on the pilot resources position.
How eNB selects a part of UE to send the CS pilot tone in a plurality of UE, can adopt multiple mode, for example adopts mode regularly, the perhaps mode of determining according to the UE buffer data.
Introduce respectively below:
(1) regularly
ENB writes down the up-to-date channel quality information that measures at each UE, and opens corresponding timer T; Select the relatively large UE of T to send the CS pilot tone.Still suppose 5 UE of eNB scheduling, so wherein 3 UE that T is bigger have " qualification " to send the CS pilot tone: if coding rule adopts UE uplink scheduling signaling time order and function, then eNB sends the dispatch of these 3 UE earlier; If coding rule adopts UE uplink scheduling signaling frequency domain position, then eNB is provided with the dispatch of these 3 UE on the forward position of frequency domain.Each has " qualification " to send the UE of CS pilot tone, still according to self uplink scheduling signaling in time priority or determine its numbering in the position of frequency domain.
Adopt timer to select the reason of UE to be, when being, channel becomes, time delay (T) between the moment of the moment of data dispatch and acquisition channel quality is short more, channel quality information is effective more, otherwise, channel quality information is invalid more, by obtaining to open timer after the channel instruction information, reaches the purpose of the current channel quality information validity of record herein.T is big more, and the moment that the expression channel quality information obtains, more early validity was poor, needed more to upgrade as early as possible.
(2) monitoring UE buffer data
ENB can also realize by the buffer data situation of each UE except can timing selecting to send the UE of CS pilot tone.
Still suppose eNB scheduling 5 UE:UE1, UE2, UE3, UE4 and UE5, by monitoring, eNB can be known the size of buffer area data volume among current these 5 UE, tentation data amount size order is: UE2＞UE3＞UE4＞UE5＞UE1, so, eNB just can arrange UE2, UE3 and UE4 to send the CS pilot tone.
If coding rule is set according to the dispatch time order and function,, preferentially UE2, UE3 and UE4 are assigned the uplink scheduling signaling in eNB one side.Assigning these 3 dispatch time order and functions can decide in strict accordance with each UE buffer area data volume size, at the time sequencing that each UE assigns dispatch be this moment: UE2, UE3, UE4, so UE2 be numbered 1, UE3 be numbered 2, UE4 be numbered 3; Also can be provided with arbitrarily, for example, the time sequencing of assigning dispatch at each UE is: UE3, UE4, UE2, so UE3 be numbered 1, UE4 be numbered 2, UE2 be numbered 3.In UE one side, still the elder generation that occurs by dispatch on the monitor channel calculated self numbering afterwards, so that send the CS pilot tone on the relevant position of pilot resources.For the situation that coding rule is set according to the dispatch frequency domain position, similar with above-mentioned situation according to the dispatch time order and function.
The UE bigger except the buffer area data volume of giving priority in arranging for sends the CS pilot tone, can also preferentially send the CS pilot tone according to buffer data real-time demand, such as, the buffer data of giving priority in arranging for is that the UE of real-time data sends the CS pilot tone.That is to say, decide preferential transmission CS pilot tone according to UE QoS of survice (the Quality of Service) demand or the grade of service.
As seen, by the mode of timing or monitoring UE buffer data, eNB can select some UE to carry out the transmission of CS pilot tone in a plurality of scheduling UE; UE monitor channel or dispatch can learn self whether need to send the CS pilot tone and pilot resources where on send the CS pilot tone, do not need eNB additionally to send CS pilot frequency configuration signaling, in dynamic dispatching CS pilot tone, saved the resource overhead of system.
Need to prove that among above-mentioned three embodiment, the transmission of CS pilot tone is except can controlling according to descending scheduling signaling place channel architecture equally according to uplink scheduling signaling place channel architecture.Reason is, data flow for two-way (on/descending), downlink data sends earlier, then upstream data sends the back in response, can indicate UE to send the CS pilot tone this moment by the time-frequency structure of arranging down control channel (dispatching downlink data), just, according to time sequencing or the frequency domain position order of descending scheduling signaling at channel, control UE sends the CS pilot tone.
Corresponding with said method, the present invention also provides a kind of scheduler of ascending channel detecting pilot frequency, referring to Fig. 6 a, is the structural representation that this scheduler and UE form.Scheduler 601 is present among the eNB, assists eNB control UE; Perhaps independent the existence, cooperate the control of finishing UE602 with eNB.
The function of scheduler 601 and UE602 is as follows respectively:
UE602, the time-frequency order of self dispatch that is provided with according to scheduler 601 sends the CS pilot tone on the pilot resources position of correspondence.
Further, scheduler 601 comprises that signaling is provided with unit 610 and structure decision unit 611, structure decision unit 611, judge that channel architecture is that mode according to time, frequency domain position or time and frequency domain position combination makes up, and notify described signaling that unit 610 is set, according to which kind of structure described signaling is set; Signaling is provided with unit 610 and is used for notice according to structure decision unit 611, according to time order and function, perhaps according to the frequency domain position order, perhaps according to time order and function and frequency domain position order, the uplink scheduling signaling is set; UE602 obtains each dispatch time sequencing or frequency domain position relation, sends the CS pilot tone on the correspondence position of pilot resources.
By the previous methods introduction as can be known, it is limited that pilot resources can send the CS pilot number, when the UE that is scheduled surpasses the quantity that pilot resources can hold, how to select to send the UE problem of CS pilot tone with regard to relating to scheduler 601 so.
A kind of is to adopt timing mode, and referring to Fig. 6 b, scheduler 601 also comprises timer 612 and judging unit 613:
Judging unit 613 knows that when unit 610 is set from signaling signaling is provided with when being the time, preferentially sends the uplink scheduling signaling of clocking value UE602 big or buffer memory real-time data; When knowing that signaling is provided with when being frequency domain position, preferentially the uplink scheduling signaling with clocking value UE602 big or buffer memory real-time data is arranged on the frequency domain.
Similar among the concrete analysis process and method embodiment three of timing mode, do not repeat them here.
Another kind is the mode that adopts monitoring UE602 buffer data, and referring to Fig. 6 c, scheduler 601 also comprises buffering area monitoring means 614 and selected cell 615:
Buffering area monitoring means 614 is used to monitor the UE602 buffer area data volume, and monitoring result is informed selected cell 615;
Similar among the concrete analysis process and method embodiment three of the mode of monitoring UE602 buffer data, do not repeat them here.
With method in like manner, scheduler 601 can also be dispatched the CS pilot tone according to descending scheduling signaling place channel architecture.
System provided by the invention can carry out quick dynamic-configuration to the CS pilot tone, but the variation of flexible adaptation UE602 transmission.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle 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 (15)
1. the dispatching method of an ascending channel detecting pilot frequency is characterized in that, comprising:
According on each subscriber equipment/order of descending scheduling signaling in channel architecture, control the transmission of the ascending channel detecting pilot frequency of each subscriber equipment.
2. according to the described method of claim 1, it is characterized in that the described process that sends according to signaling sequence control pilot tone is:
Judge each subscriber equipment on/time order and function that the descending scheduling signaling occurs on channel;
According to time sequencing, send the ascending channel detecting pilot frequency of each subscriber equipment.
3. according to the described method of claim 1, it is characterized in that the described process that sends according to signaling sequence control pilot tone is:
Judge each subscriber equipment on/the descending scheduling signaling is in the sequence of positions of channel frequency domain;
According to sequence of positions, send the ascending channel detecting pilot frequency of each subscriber equipment.
4. according to the described method of claim 1, it is characterized in that the described process that sends according to signaling sequence control pilot tone is:
Respectively with the time domain of channel and frequency domain two reference axis as quadrature;
Judge each subscriber equipment on/the descending scheduling signaling is in the zone of coordinate domain;
According to the order in described zone, send the ascending channel detecting pilot frequency of each subscriber equipment.
5. according to the described method of claim 2, it is characterized in that, also comprise:
Dynamically adjust on each subscriber equipment/the descending scheduling signaling appears at the time sequencing on the channel.
6. according to the described method of claim 2, it is characterized in that, also comprise:
On each subscriber equipment monitor channel on all/and the time sequencing of descending scheduling signaling, calculate self numbering;
Each subscriber equipment is attached to self numbering on the pairing position of pilot resources with self pilot tone, waits to be sent.
7. according to the described method of claim 3, it is characterized in that, also comprise:
On dynamic each subscriber equipment of adjustment/position of descending scheduling signaling on the channel frequency domain.
8. according to the described method of claim 3, it is characterized in that, also comprise:
On each subscriber equipment is monitored and resolves on the channel/and the descending scheduling signaling, know that each signaling is in the position of frequency domain, calculate self numbering;
Each subscriber equipment is attached to self numbering on the pairing position of pilot resources with self pilot tone, waits to be sent.
9. according to described each method of claim 1 to 8, it is characterized in that, also comprise:
The base station obtains each user device channel quality information, and timing respectively;
Preferentially send/the descending scheduling signaling in chronological order to the big subscriber equipment of clocking value, or preferential that clocking value is big subscriber equipment on/the descending scheduling signaling is arranged on the channel frequency domain.
10. according to described each method of claim 1 to 8, it is characterized in that, also comprise:
Each user apparatus service grade of base station monitors;
Preferentially send/the descending scheduling signaling to the high subscriber equipment of the grade of service, perhaps, on preferential that the grade of service is the high subscriber equipment/the descending scheduling signaling is arranged on the channel frequency domain.
11. according to the described method of claim 10, it is characterized in that,
The described grade of service is divided according to data buffer zone data volume size, perhaps, divides according to the real-time of data buffer zone data.
12. the scheduler of an ascending channel detecting pilot frequency is characterized in that, comprises that signaling is provided with the unit, is provided with on each subscriber equipment/the descending scheduling signaling according to channel architecture; Described subscriber equipment sends ascending channel detecting pilot frequency according to the last/order of descending scheduling signaling in channel architecture.
13. according to the described scheduler of claim 12, it is characterized in that, also comprise:
The structure decision unit is judged that channel architecture is that mode according to time, frequency domain position or time and frequency domain position combination makes up, and is notified described signaling that the unit is set, and according to which kind of structure described signaling is set;
Described signaling is provided with the unit, according to the notice of described structure decision unit, according to time order and function or frequency domain position order or time order and function and frequency domain position order, is provided with/the descending scheduling signaling.
14. according to the described scheduler of claim 13, it is characterized in that, also comprise:
Timer is used for picking up counting when obtaining the channel quality information of described subscriber equipment;
Judging unit,
Know that when the unit is set from described signaling signaling is provided with when being the time, preferentially send the big subscriber equipment of clocking value on/the descending scheduling signaling;
When knowing that signaling is provided with when being frequency domain position, the uplink scheduling signaling of preferential that clocking value is big subscriber equipment is arranged on the frequency domain.
15. according to the described scheduler of claim 13, it is characterized in that, also comprise:
The buffering area monitoring means is used for supervisory user equipment buffer area data volume;
Selected cell,
Know that when the unit is set from described signaling signaling is provided with when being the time, preferentially send the big or buffer memory real-time data of buffer area data volume subscriber equipment on/the descending scheduling signaling;
When knowing that signaling is provided with when being frequency domain position, preferentially with on the buffer area data volume subscriber equipmenies big or buffer memory real-time data/the descending scheduling signaling is arranged on the channel frequency domain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100646377A CN101272593B (en) | 2007-03-21 | 2007-03-21 | Scheduling method and device for ascending channel detecting pilot frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100646377A CN101272593B (en) | 2007-03-21 | 2007-03-21 | Scheduling method and device for ascending channel detecting pilot frequency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101272593A true CN101272593A (en) | 2008-09-24 |
| CN101272593B CN101272593B (en) | 2011-08-03 |
Family
ID=40006220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100646377A Active CN101272593B (en) | 2007-03-21 | 2007-03-21 | Scheduling method and device for ascending channel detecting pilot frequency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101272593B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010075805A1 (en) * | 2008-12-31 | 2010-07-08 | Mediatek Inc. | Physical structure and design of sounding channel in ofdma systems |
| CN101902728B (en) * | 2009-05-27 | 2013-01-16 | 中兴通讯股份有限公司 | Method, system and relevant device for realizing dynamic regulation of semi-static scheduling resources |
| US8811300B2 (en) | 2008-12-31 | 2014-08-19 | Mediatek Inc. | Physical structure and sequence design of midamble in OFDMA systems |
| WO2015024521A1 (en) * | 2013-08-23 | 2015-02-26 | Huawei Technologies Co., Ltd. | Channel sounding for frequency division duplex system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1388964B1 (en) * | 2002-08-06 | 2006-11-22 | Mitsubishi Electric Information Technology Centre Europe B.V. | Transmission quality reporting method |
| JP4256158B2 (en) * | 2002-12-26 | 2009-04-22 | パナソニック株式会社 | Wireless communication apparatus and wireless communication method |
| CN100492946C (en) * | 2003-06-27 | 2009-05-27 | 上海贝尔阿尔卡特股份有限公司 | A feedback information transmission method of adaptive OFDM system |
-
2007
- 2007-03-21 CN CN2007100646377A patent/CN101272593B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010075805A1 (en) * | 2008-12-31 | 2010-07-08 | Mediatek Inc. | Physical structure and design of sounding channel in ofdma systems |
| US8503420B2 (en) | 2008-12-31 | 2013-08-06 | Mediatek Inc. | Physical structure and design of sounding channel in OFDMA systems |
| US8811300B2 (en) | 2008-12-31 | 2014-08-19 | Mediatek Inc. | Physical structure and sequence design of midamble in OFDMA systems |
| US9106357B2 (en) | 2008-12-31 | 2015-08-11 | Mediatek Inc. | Physical structure and sequence design of midamble in OFDMA systems |
| CN101902728B (en) * | 2009-05-27 | 2013-01-16 | 中兴通讯股份有限公司 | Method, system and relevant device for realizing dynamic regulation of semi-static scheduling resources |
| WO2015024521A1 (en) * | 2013-08-23 | 2015-02-26 | Huawei Technologies Co., Ltd. | Channel sounding for frequency division duplex system |
| US9445283B2 (en) | 2013-08-23 | 2016-09-13 | Huawei Technologies Co., Ltd. | Channel sounding for frequency division duplex system |
| US9986583B2 (en) | 2013-08-23 | 2018-05-29 | Huawei Technologies Co., Ltd. | Channel sounding for frequency division duplex system |
| US10645721B2 (en) | 2013-08-23 | 2020-05-05 | Huawei Technologies Co., Ltd. | Channel sounding for frequency division duplex system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101272593B (en) | 2011-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101553007B (en) | Virtually centralized uplink scheduling | |
| CN101765988B (en) | Transmitter, receiver, and communication method | |
| CN101989868B (en) | Multi-cell cooperative transmission method, central controller and user equipment | |
| CN104869655B (en) | Uplink resource dispatching method, wireless base station and mobile station | |
| CN101272177B (en) | Method and device for scheduling user's set | |
| CN101189902B (en) | Mobile communication system and communication control method thereof | |
| CN102119572A (en) | Base station device and communication control method | |
| CN101345974B (en) | Method and system for scheduling mobile terminal to transmit ascending signal channel detection pilot frequency | |
| CN103024905B (en) | A kind of subframe matching method and device | |
| CN101272388A (en) | A method for scheduling of service data in uplink, a base station, a user terminal and a communication network therefor | |
| CN107079437A (en) | User's set, feedback and retransmission control method | |
| CN104113924A (en) | Multi-subframe scheduling method, device and system | |
| CN102595600A (en) | Semi-static scheduling method, user equipment and network device | |
| CN101841862A (en) | Resource allocation method and device | |
| CN101400127A (en) | Method and system implementing scheduling measurement | |
| CN105634755A (en) | DMO terminal time and frequency resource using method and apparatus | |
| CN101345647A (en) | Channel establishing method for high speed ascending packet data transmission, and network controller | |
| CN101272593B (en) | Scheduling method and device for ascending channel detecting pilot frequency | |
| CN104105129A (en) | Aperiodic CSI report method in LTE system and user equipment | |
| CN102932797A (en) | SRS (Sounding Reference Signal) and PUCCH (Physical Uplink Control Channel) coordinate transmission method and system | |
| CN103825671A (en) | Uplink data transmission and receiving method and device in a time division duplexing system | |
| CN106304350A (en) | The PUCCH channel dynamic allocation method of SPS business and device | |
| CN101932108A (en) | Method and device for increasing system SRS bandwidth | |
| CN101383654A (en) | TDD schema channel data transmission method and a base station | |
| CN101841913A (en) | Method and base station for determining UE-monitored downlink member carrier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: INST OF TELECOMMUNICATION SCIENCE AND TECHNOLGOY Free format text: FORMER OWNER: DATANG MOBILE COMMUNICATION EQUIPMENT CO., LTD. Effective date: 20110422 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 NO. 29, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING TO: 100083 NO. 40, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110422 Address after: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Applicant after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100083 Haidian District, Xueyuan Road, No. 29, Applicant before: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210603 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |