CN101588632B - Allocation method, device and base station for physical downlink control channel time domain symbolic number - Google Patents
Allocation method, device and base station for physical downlink control channel time domain symbolic number Download PDFInfo
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Abstract
The invention discloses an allocation method, a device and a base station for the physical downlink control channel time domain symbolic number, relating to the communications field. The invention allocates the time domain symbolic number for the physical downlink control channel of the transmission time interval which needs scheduling based on the application circumstance of the time domain symbolic number which is allocated by the physical downlink control channel of the former M history transmission time interval and the time domain symbolic number which is allocated by the physical downlink control channel of the previous transmission time interval so as to decrease the waste of the physical downlink control channel resource and the physical downlink shared channel frequency domain resource.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of distribution method, device and base station of physical downlink control channel time domain symbolic number.
Background technology
The idle port communication of LTE (Long Term Evolution, Long Term Evolution) system is based on the scheduling mode of 1ms TTI (Transmission Time Interval, Transmission Time Interval).UE (UserEquipment, subscriber equipment) TTI in each activation detects PDCCH (Physical Downlink ControlChannel, Physical Downlink Control Channel), when UE defines schedule information at this UE according to PDCCH, if this schedule information is a down dispatch information, then UE receives corresponding PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel) data according to this schedule information.
The summation of the time domain symbolic number that time domain symbolic number that PDCCH distributed and PDSCH take is the total descending symbolic number of a TTI.The time domain symbolic number that PDCCH distributed can be regulated according to actual needs, and the time domain symbolic number that PDSCH takies is exactly the available time domain symbolic number of residue.In addition, the time domain symbolic number that PDCCH distributed has determined the quantity of the UE that can dispatch.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art:
At present, by the fixed allocation method, be PDCCH fixed allocation time domain symbolic number promptly according to configuration (number of users of support, the bandwidth of sub-district etc.) of system version etc.The time domain symbolic number that PDCCH is distributed in each TTI all is a fixed configurations, and is irrelevant with the UE number of current actual needs scheduling.If the time domain symbolic number that PDCCH distributed of configuration is too much, then can cause only accounting for a little P DCCH resource at the schedule information of UE, there is a large amount of PDCCH resources to be wasted, if the time domain symbolic number that PDCCH distributed of configuration is very few, then can cause the UE of needs scheduling can not dispatch owing to the PDCCH inadequate resource, the possibility that the frequency domain resource of PDSCH is wasted is bigger.
Summary of the invention
Embodiments of the invention provide a kind of distribution method, device and base station of physical downlink control channel time domain symbolic number, can reasonable distribution PDCCH resource and PDSCH frequency domain resource, reduce the possibility that the PDSCH frequency domain resource is wasted.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of distribution method of physical downlink control channel time domain symbolic number comprises:
The time domain symbolic number that Physical Downlink Control Channel distributed of M historical Transmission Time Interval before obtaining;
Obtain the maximum in the time domain symbolic number that Physical Downlink Control Channel distributed in M the historical Transmission Time Interval before described, and with described maximum as maximum time domain symbolic number;
Operating position according to the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, described maximum time domain symbolic number is revised, with the revised maximum time domain symbolic number of described process as the time domain symbolic number of the Physical Downlink Control Channel of distributing to the current Transmission Time Interval that needs scheduling wherein, M is a natural number.
A kind of distributor of physical downlink control channel time domain symbolic number comprises:
The symbolic number determining unit, be used for the time domain symbolic number that Physical Downlink Control Channel distributed according to preceding M historical Transmission Time Interval, and the operating position of the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, determine that the current Physical Downlink Control Channel of the Transmission Time Interval of scheduling that needs distributes time domain symbolic number, wherein, M is a natural number;
The symbolic number allocation units, being used for according to the time domain symbolic number that described symbol determining unit is determined is the Physical Downlink Control Channel distribution time domain symbolic number of the Transmission Time Interval of current needs scheduling; Wherein, described symbolic number determining unit comprises:
Maximum time domain symbolic number is determined subelement, be used for obtaining described before the maximum of the time domain symbolic number that Physical Downlink Control Channel distributed of M historical Transmission Time Interval, and with described maximum as maximum time domain symbolic number;
Maximum time domain symbolic number correction subelement, be used for operating position according to the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, described maximum time domain symbolic number is revised, and described revised maximum time domain symbolic number is defined as the current Physical Downlink Control Channel distribution time domain symbolic number that needs the Transmission Time Interval of scheduling.
A kind of base station comprises the distributor of physical downlink control channel time domain symbolic number;
The distributor of described physical downlink control channel time domain symbolic number comprises:
The symbolic number determining unit, be used for the time domain symbolic number that Physical Downlink Control Channel distributed according to preceding M historical Transmission Time Interval, and the operating position of the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, determine that the current Physical Downlink Control Channel of the Transmission Time Interval of scheduling that needs distributes time domain symbolic number, wherein, M is a natural number;
The symbolic number allocation units, being used for according to the time domain symbolic number that described symbol determining unit is determined is the Physical Downlink Control Channel distribution time domain symbolic number of the Transmission Time Interval of current needs scheduling.
The distribution method of the physical downlink control channel time domain symbolic number that the embodiment of the invention provides, device and base station, the time domain symbolic number that Physical Downlink Control Channel distributed according to preceding M historical Transmission Time Interval, and the operating position of the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, for the current Physical Downlink Control Channel of the Transmission Time Interval of scheduling that needs distributes time domain symbolic number, and, because the operating frequency of scheduler is 1ms, the variation of the scheduling situation of UE can be very not greatly at short notice, therefore, can effectively reduce the waste of the PDCCH wasting of resources and PDSCH frequency domain resource, thereby improve the average throughput of system, and owing to can not dispatch the probability reduction of the UE that needs scheduling because of the PDCCH inadequate resource, improved professional QoS (Quality of Service, service quality).
Description of drawings
Fig. 1 is the schematic flow sheet of the distribution method of embodiment of the invention physical downlink control channel time domain symbolic number;
Fig. 2 is the principle schematic of the distribution method of embodiment of the invention physical downlink control channel time domain symbolic number;
Fig. 3 is a structural representation of the distributor of embodiment of the invention physical downlink control channel time domain symbolic number;
Fig. 4 is another structural representation of the distributor of embodiment of the invention physical downlink control channel time domain symbolic number.
Embodiment
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done an introduction simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present 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.
Embodiment one
For can reasonable distribution PDCCH resource and PDSCH frequency domain resource, the embodiment of the invention provides a kind of distribution method of physical downlink control channel time domain symbolic number, and the distribution method of embodiment of the invention physical downlink control channel time domain symbolic number comprises:
The time domain symbolic number that Physical Downlink Control Channel distributed according to preceding M historical Transmission Time Interval, and the operating position of the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, for the current Physical Downlink Control Channel of the Transmission Time Interval of scheduling that needs distributes time domain symbolic number, wherein, M is a natural number.
Wherein " historical Transmission Time Interval " is the current Transmission Time Interval Transmission Time Interval in the past that needs scheduling.This action can be carried out by distributor, and this distributor can be an independent device, also can be to be positioned among the base station.Preceding M historical Transmission Time Interval can be preceding 1 historical Transmission Time Interval, also can be preceding 2,3, and 4,5 time intervals etc., by that analogy.M historical Transmission Time Interval can comprise one or more time intervals promptly.
Can be a value in the time domain symbolic number that Physical Downlink Control Channel distributed of M historical Transmission Time Interval before obtaining earlier, according to the operating position of the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval this value be revised again.For example, this value of obtaining can comprise following situation: in the time domain symbolic number that Physical Downlink Control Channel distributed of preceding M historical Transmission Time Interval maximum one, for instance, the time domain symbolic number that Physical Downlink Control Channel distributed of preceding 4 historical Transmission Time Intervals is followed successively by: 1232, maximum is 3, and then value is 3; When M was 1, the value of obtaining promptly was a nearest time domain symbolic number that historical Transmission Time Interval distributed.The operating position of the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval refers to that time domain symbolic number that previous Transmission Time Interval Physical Downlink Control Channel is distributed has and all is not used, can distribute time domain symbolic number according to the Physical Downlink Control Channel that this operating position the value of getting at the time domain symbolic number that Physical Downlink Control Channel distributed of preceding M historical Transmission Time Interval revise the Transmission Time Interval of the current needs scheduling of decision.
The distribution method of the physical downlink control channel time domain symbolic number that the embodiment of the invention one provides, the time domain symbolic number that Physical Downlink Control Channel distributed according to preceding n historical Transmission Time Interval, and the operating position of the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, for the current Physical Downlink Control Channel of the Transmission Time Interval of scheduling that needs distributes time domain symbolic number, and, because the operating frequency of scheduler is 1ms, the variation of the scheduling situation of UE can be very not greatly at short notice, therefore, can effectively reduce the waste of the PDCCH wasting of resources and PDSCH frequency domain resource, thereby improve the average throughput of system, and, improved professional QoS owing to the probability that can not dispatch the UE that needs scheduling because of the PDCCH inadequate resource reduces.
Below embodiment one is described in further detail.
Embodiment two
The embodiment of the invention also provides a kind of distribution method of physical downlink control channel time domain symbolic number, as shown in Figure 1, comprising:
201, obtain the time domain symbolic number that Physical Downlink Control Channel distributed of preceding M historical Transmission Time Interval, wherein, M is a natural number;
Be specifically as follows: set an array, the time domain symbolic number that PDCCH distributed of M historical TTI before being used to store, M can be set to positive integer value arbitrarily.For example, set array abySymbNum[M], M is set to 4.
In addition, before first TTI that need dispatch was carried out the PDCCH resource allocation, initialization array and correction described later sign were for the time domain symbolic number number of array stored is composed effective value.For example, before first TTI that need dispatch is carried out the PDCCH resource allocation, initialization abySymbNum[M], abySymbNum[M is set] time domain symbolic number of M PDCCH of stored is 2.For example, as shown in Figure 2, when the PDCCH that is n+1 TTI distributes time domain symbolic number, obtain array abySymbNum[4] in the time domain symbolic number that PDCCH distributed (1,2,2,2) of the n-3～n TTI of storage.Or when the PDCCH that is n+2 TTI distributes time domain symbolic number, obtain array abySymbNum[4] in the time domain symbolic number that PDCCH distributed (2,2,2,2) of the n-2～n+1 TTI of storage.
202, obtain maximum in the time domain symbolic number that Physical Downlink Control Channel distributed in M the historical Transmission Time Interval before described, and with described maximum as maximum time domain symbolic number;
For example, obtain abySymbNum[M] in maximum, this maximum is designated as bySymbNum.
Special, when M is 1, array abySymbNum[1] in the time domain symbolic number of storage promptly be the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, at this moment, also instant this time domain symbolic number of maximum just is designated as maximum bySymbNum with this time domain symbolic number.
For example, as shown in Figure 2, when the PDCCH that is n+1 TTI distributes time domain symbolic number, from array abySymbNum[4] time domain symbolic number that PDCCH distributed (1,2,2 of the n-3～n TTI of storage, 2) obtain maximum in, promptly maximum time domain symbolic number is 2.Or when the PDCCH that is n+2 TTI distributes time domain symbolic number, from array abySymbNum[4] time domain symbolic number that PDCCH distributed (2,2,2,2) of the n-2～n+1 TTI of storage obtains maximum, and promptly maximum time domain symbolic number is 2.
203, according to the operating position of the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, described maximum time domain symbolic number is revised, with the time domain symbolic number of the revised maximum time domain symbolic number of described process as the Physical Downlink Control Channel of distributing to the current Transmission Time Interval that need dispatch.
If the time domain symbolic number that the PDCCH of previous TTI is used less than the time domain symbolic number of the Physical Downlink Control Channel of distributing to previous Transmission Time Interval, then reduces maximum time domain symbolic number.If the time domain symbolic number that PDCCH distributed of previous TTI can not be dispatched the terminal that all need be dispatched, and the frequency domain of PDSCH has residue, then increases maximum time domain symbolic number.If do not satisfy above-mentioned two kinds of situations, then maximum time domain symbolic number is not done the operation that increases or reduce.From the scheduling statistics, the influence of the time domain symbolic number waste of PDCCH is less than the influence of the frequency domain resource waste of PDCCH deficiency and PDSCH, so, in embodiments of the present invention, the time domain symbolic number maximum of several TTI was adjusted as radix in the past, can respond apace in the time of can further guaranteeing need to promote the time domain symbolic number of PDCCH.
Be specifically as follows: set one and revise sign, be used for operating position, identify the needed correction operation of maximum time domain symbolic number according to the time domain symbolic number that PDCCH distributed of previous TTI.For example, set and revise sign byAdjust, still can realize same scheduling if the PDCCH of previous TTI reduces by a symbol, the value that byAdjust then can be set is 2, and the maximum time domain symbolic number bySymbNum value of obtaining in the expression step 202 need reduce a symbol.If the frequency domain of PDSCH has residue, can not the UE of needs scheduling be dispatched but the time domain symbolic number that the PDCCH of previous TTI distributed is not enough, in allowed limits, be that the maximum time domain symbolic number that obtains in the step 202 is not when being the maximum of host-host protocol regulation, the value that byAdjust then can be set is 1, and the bySymbNum value of obtaining in the expression step 202 needs to increase a symbol.If do not satisfy above-mentioned two kinds of situations, the value that byAdjust then can be set is 0, the bySymbNum value of obtaining in the expression step 202 does not need to revise, before first TTI that need dispatch is carried out the PDCCH resource allocation, it is 0 that the initial value of revising sign also can be set, and expression does not need the value of obtaining is revised.Certainly, this correction sign also can be got other values, and represented content also is not limited to increase a symbol, reduces by a symbol, do not need to revise, for example, and can also be according to actual needs, expression increases or reduces two symbols or the like.Revise sign according to this, maximum time domain symbolic number is revised, be the current symbolic number that PDCCH distributed that needs the TTI of scheduling through revised maximum time domain symbolic number.
For example, as shown in Figure 2, the time domain symbolic number that the PDCCH of n TTI is not used is no more than a symbol, and the frequency domain of PDSCH is residue not, or can not the UE of needs scheduling not dispatched inadequately because of the PDCCH resource, therefore, do not need to revise maximum time domain symbolic number, the value of revising sign is set to 0.When the PDCCH that is n+1 TTI distributes time domain symbolic number,, be that the PDCCH of n+1 TTI distributes time domain symbolic number (2) according to the value (0) of revising sign and the maximum time domain symbolic number (2) that obtains.At this moment, the PDCCH of n+1 TTI reduces by a symbol still can realize same scheduling, therefore, maximum time domain symbolic number need be reduced a symbol, and the value of revising sign is set to 2.When the PDCCH that is n+2 TTI distributes time domain symbolic number,, be that the PDCCH of n+1 TTI distributes time domain symbolic number (1) according to the value (2) of revising sign and the maximum time domain symbolic number (2) that obtains.At this moment, the frequency domain of the PDSCH of n+1 TTI has residue, the time domain symbolic number that PDCCH distributed of n+1 TTI can not be dispatched the UE of needs scheduling inadequately because of the PDCCH resource, and the time domain symbolic number that PDCCH distributed is not the maximum of host-host protocol regulation, therefore, maximum time domain symbolic number need be increased a symbol, the value of revising sign is set to 1.
The distribution method of the physical downlink control channel time domain symbolic number that the embodiment of the invention two provides, the time domain symbolic number that Physical Downlink Control Channel distributed according to preceding M historical Transmission Time Interval, and the operating position of the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, for the current Physical Downlink Control Channel of the Transmission Time Interval of scheduling that needs distributes time domain symbolic number, and, because the operating frequency of scheduler is 1ms, the variation of the scheduling situation of UE can be very not greatly at short notice, therefore, can effectively reduce the waste of the PDCCH wasting of resources and PDSCH frequency domain resource, thereby improve the average throughput of system, and, improved professional QoS owing to the probability that can not dispatch the UE that needs scheduling because of the PDCCH inadequate resource reduces.
In another embodiment, can also refresh the time domain symbolic number that Physical Downlink Control Channel distributed in described preceding M the historical Transmission Time Interval of preservation with revised maximum time domain symbolic number.Promptly behind the distribution PDCCH time domain symbolic number that is each TTI, delete time domain symbolic number the earliest in this array, deposit the time domain symbolic number of the shared distribution of PDCCH of this TTI in this array.For example, distribute the time domain symbolic number A1 take at the distribution PDCCH that is N TTI after, array abySymbNum[M] in value move forward a position successively, give array abySymbNum[M with the value assignment of A1] last element.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Embodiment three
The embodiment of the invention also provides a kind of distributor of physical downlink control channel time domain symbolic number, as shown in Figure 3, comprising:
Symbolic number determining unit 301, be used for the time domain symbolic number that Physical Downlink Control Channel distributed according to preceding M historical Transmission Time Interval, and the operating position of the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, determine that the current Physical Downlink Control Channel of the Transmission Time Interval of scheduling that needs distributes time domain symbolic number, wherein, M is a natural number.
Symbolic number determining unit 301 can be in the time domain symbolic number that Physical Downlink Control Channel distributed of M historical Transmission Time Interval before obtaining, again this time domain symbolic number that obtains according to the operating position correction of the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval.Specific implementation is not given unnecessary details at this referring to the explanation among embodiment one and the embodiment two.
Symbolic number allocation units 302, being used for according to the time domain symbolic number that described symbol determining unit 301 is determined is the Physical Downlink Control Channel distribution time domain symbolic number of the Transmission Time Interval of current needs scheduling.
Described symbolic number determining unit 301 can comprise that maximum time domain symbolic number determines subelement 3011 and maximum time domain symbolic number correction subelement 3012.
Wherein, described maximum time domain symbolic number is determined subelement 3011, be used for obtaining described before the maximum of the time domain symbolic number that Physical Downlink Control Channel distributed of M historical Transmission Time Interval, and with described maximum as maximum time domain symbolic number.
Described maximum time domain symbolic number correction subelement 3012, be used for operating position according to the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, described maximum time domain symbolic number is revised, and described revised maximum time domain symbolic number is defined as the current Physical Downlink Control Channel distribution time domain symbolic number that needs the Transmission Time Interval of scheduling.Concrete, the time domain symbolic number that is used when the Physical Downlink Control Channel of previous Transmission Time Interval then reduces described maximum time domain symbolic number during less than the time domain symbolic number of the Physical Downlink Control Channel of distributing to previous Transmission Time Interval; When the time domain symbolic number of the Physical Downlink Control Channel of distributing to previous Transmission Time Interval can not be dispatched the terminal that all need be dispatched, and when the frequency domain of the Physical Downlink Shared Channel of described previous Transmission Time Interval has residue, then increase described maximum time domain symbolic number.Specific implementation sees also the explanation and the example of relevant portion among the embodiment two, does not give unnecessary details at this.
In another embodiment of the present invention, as shown in Figure 4, this distributor can also comprise symbolic number refresh unit 303, is used for using revised maximum time domain symbolic number to refresh described preceding M the time domain symbolic number that historical Transmission Time Interval Physical Downlink Control Channel is distributed of preservation.Be that Physical Downlink Control Channel distributes time domain symbolic number in the current transmission time interval promptly, as A1, afterwards, the time domain symbolic number A1 of this distribution is saved in the array of the time domain symbolic number formation that Physical Downlink Control Channel distributed in preceding M the historical Transmission Time Interval, and deletion is kept at the time domain symbolic number in this array at first.Promptly the array that constitutes as the time domain symbolic number that Physical Downlink Control Channel distributed in preceding 4 historical Transmission Time Intervals is: 1221, and then use this array after revised maximum time domain symbolic number refreshes to be: 221A1.Like this, can keep the renewal of array, make that the time domain symbolic number that distributes for current historical Transmission Time Interval is more accurate.
The distributor of the physical downlink control channel time domain symbolic number that the embodiment of the invention three provides, the time domain symbolic number that Physical Downlink Control Channel distributed according to preceding M historical Transmission Time Interval, and the operating position of the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, for the current Physical Downlink Control Channel of the Transmission Time Interval of scheduling that needs distributes time domain symbolic number, and, because the operating frequency of scheduler is 1ms, the variation of the scheduling situation of UE can be very not greatly at short notice, therefore, can effectively reduce the waste of the PDCCH wasting of resources and PDSCH frequency domain resource, thereby improve the average throughput of system, and, improved professional QoS owing to the probability that can not dispatch the UE that needs scheduling because of the PDCCH inadequate resource reduces.
The embodiment of the invention also provides a kind of base station, and the distributor of the physical downlink control channel time domain symbolic number that provides in the foregoing description three is provided.This base station can be the base station of the various kenels of the base station of various kenels of LTE (Long Term Evolution, Long Term Evolution) or LTE-Advanced (LTE enhancing), as macro base station, little base station, femto base station, Home eNodeB etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.
Claims (7)
1. the distribution method of a physical downlink control channel time domain symbolic number is characterized in that, comprising:
The time domain symbolic number that Physical Downlink Control Channel distributed of M historical Transmission Time Interval before obtaining;
Obtain the maximum in the time domain symbolic number that Physical Downlink Control Channel distributed in M the historical Transmission Time Interval before described, and with described maximum as maximum time domain symbolic number;
Operating position according to the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, described maximum time domain symbolic number is revised, with the time domain symbolic number of the revised maximum time domain symbolic number of described process as the Physical Downlink Control Channel of distributing to the current Transmission Time Interval that need dispatch, wherein, M is a natural number.
2. method according to claim 1 is characterized in that, the operating position of the described time domain symbolic number that Physical Downlink Control Channel distributed according to previous Transmission Time Interval comprises described maximum time domain symbolic number correction:
The time domain symbolic number that uses when the Physical Downlink Control Channel of previous Transmission Time Interval then reduces described maximum time domain symbolic number during less than the time domain symbolic number of the Physical Downlink Control Channel of distributing to previous Transmission Time Interval;
When the time domain symbolic number of the Physical Downlink Control Channel of distributing to previous Transmission Time Interval can not be dispatched the terminal that all need be dispatched, and when the frequency domain of the Physical Downlink Shared Channel of described previous Transmission Time Interval has residue, then increase described maximum time domain symbolic number.
3. method according to claim 1 and 2 is characterized in that, also comprises: refresh the time domain symbolic number that Physical Downlink Control Channel distributed in described preceding M the historical Transmission Time Interval of preservation with revised maximum time domain symbolic number.
4. the distributor of a physical downlink control channel time domain symbolic number is characterized in that, comprising:
The symbolic number determining unit, be used for the time domain symbolic number that Physical Downlink Control Channel distributed according to preceding M historical Transmission Time Interval, and the operating position of the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, determine that the current Physical Downlink Control Channel of the Transmission Time Interval of scheduling that needs distributes time domain symbolic number, wherein, M is a natural number;
The symbolic number allocation units, being used for according to the time domain symbolic number that described symbol determining unit is determined is the Physical Downlink Control Channel distribution time domain symbolic number of the Transmission Time Interval of current needs scheduling;
Wherein, described symbolic number determining unit comprises:
Maximum time domain symbolic number is determined subelement, be used for obtaining described before the maximum of the time domain symbolic number that Physical Downlink Control Channel distributed of M historical Transmission Time Interval, and with described maximum as maximum time domain symbolic number;
Maximum time domain symbolic number correction subelement, be used for operating position according to the time domain symbolic number that Physical Downlink Control Channel distributed of previous Transmission Time Interval, described maximum time domain symbolic number is revised, and described revised maximum time domain symbolic number is defined as the current Physical Downlink Control Channel distribution time domain symbolic number that needs the Transmission Time Interval of scheduling.
5. device according to claim 4 is characterized in that, described maximum time domain symbolic number correction subelement specifically is used for:
The time domain symbolic number that uses when the Physical Downlink Control Channel of previous Transmission Time Interval then reduces described maximum time domain symbolic number during less than the time domain symbolic number of the Physical Downlink Control Channel of distributing to previous Transmission Time Interval;
When the time domain symbolic number of the Physical Downlink Control Channel of distributing to previous Transmission Time Interval can not be dispatched the terminal that all need be dispatched, and when the frequency domain of the Physical Downlink Shared Channel of described previous Transmission Time Interval has residue, then increase described maximum time domain symbolic number.
6. device according to claim 4 is characterized in that, also comprises:
The symbolic number refresh unit is used for using revised maximum time domain symbolic number to refresh described preceding M the time domain symbolic number that historical Transmission Time Interval Physical Downlink Control Channel is distributed of preservation.
7. a base station is characterized in that, comprises the distributor according to described each described physical downlink control channel time domain symbolic number of claim 4-6.
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| CN101754376B (en) * | 2008-12-05 | 2012-06-06 | 中兴通讯股份有限公司 | Method for allocating downlink resources of a orthogonal frequency division multiplexing system |
| CN103428883B (en) * | 2013-08-30 | 2016-03-02 | 京信通信系统（中国）有限公司 | A kind of dispatching method of physical downlink control channel resource and equipment |
| EP3432659B1 (en) | 2016-03-31 | 2020-08-19 | Huawei Technologies Co., Ltd. | Uplink data sending method, uplink data scheduling method, and device |
| CN106255213B (en) * | 2016-07-29 | 2019-10-11 | 宇龙计算机通信科技(深圳)有限公司 | It is a kind of configure time domain scheduling unit method and base station |
| CN107124772B (en) * | 2017-04-11 | 2020-02-18 | 京信通信系统（中国）有限公司 | Resource scheduling method and device |
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| CN1510935A (en) * | 2002-12-21 | 2004-07-07 | 华为技术有限公司 | Method for resource planning method in communication system |
| CN1953411A (en) * | 2006-11-07 | 2007-04-25 | 北京四达时代软件技术有限公司 | A method to broadcast and dispatch the information in the channel network |
| CN101304594A (en) * | 2007-05-11 | 2008-11-12 | 大唐移动通信设备有限公司 | Management method and scheduling machine for wireless resource |
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| CN101588632A (en) | 2009-11-25 |
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