CN102158963B - Resource allocation method and base station - Google Patents
Resource allocation method and base station Download PDFInfo
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Abstract
The invention provides a resource allocation method and a base station. The method comprises the following steps that: the base station acquires relevant information of the data transmission quantity of user equipment (UE) and determines the data transmission quantity of the UE according to the relevant information; the base station determines the resource information needed by the UE according to the data transmission quantity of the UE; and the base station allocates the uplink shared channel resources matched with the resource information needed by the UE for the UE. The resource allocation method of the base station is optimized so that the base station allocates the resources more reasonably so as to reduce the resource waste and UE data transmission delay caused by unreasonable resource allocation.
Description
Technical field
The present invention relates to communication technical field, relate in particular to resource allocation methods and the base station of MTC terminal in a kind of LTE of being suitable for system.
Background technology
LTE (Long Term Evolution, Long Term Evolution) system is based on the communication system of scheduling, network side is UE (User Equipment according to trigger condition and the current resource behaviour in service of system, user terminal) distribute PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) resource.In the LTE system, the trigger network side is that UE distributes the PUSCH resource that various ways is arranged at present, mainly contain and receive preamble (preamble), SR (the Scheduler Request that UE sends, dispatch request), BSR (Buffer States Report, buffer status report) and arrive time etc. of distributing the SPS resource for UE, specifically resource allocation process is:
1) receive the premable that UE sends
When network side receives the preamble that UE sends in random access procedure, illustrate that UE has data to send, and need to distribute the UL-SCH resource for UE.For the random access based on competition, when network side receives the preamble of UE transmission, the UL-SCH resource of distribution is at least 56bit, to guarantee the transmission of necessary upstream message.The UL-SCH here is mapped on PUSCH in physical layer.
2) receive BSR, the SR that UE sends
If there are data to need to send in the transmission buffer memory of UE, UE sends a BSR need to first to network equipment eNB (Evolution NodeB, evolved NodeB) so, tells the data message in the current transmission buffer memory of this UE of eNB.ENB is after receiving the BSR that UE sends, according to the data message in the current transmission buffer memory of UE and current resource behaviour in service for UE distributes corresponding UL-SCH (Uplink Shared Channel, Uplink Shared Channel) resource, and notice UE sends data on the UL-SCH resource of distributing.
UE sends BSR to eNB also needs to use the UL-SCH resource, if there is BSR to report, but now there is no the UL-SCH resource, so just need to utilize PUCCH (Physical Uplink ControlChannel, Physical Uplink Control Channel) D-SR (the Dedicated SR of upper configuration, the specific schedule request) resource sends SR (claiming the D-SR mode), or initiate to access at random transmission SR in random access procedure and carry out RA-SR (Random Access, random access dispatching request) (claim the RA-SR mode), request eNB distributes uplink shared channel resources for the BSR that needs to send.
Therefore for UE, detailed process is: UE has upstream data to need to send, but does not send the UL-SCH resource of data in up link, triggers so BSR and reports; If do not have the UL-SCH resource to transmit BSR, trigger SR and report.In the situation that triggering SR reports, report the mode of SR to have two kinds, i.e. aforesaid D-SR mode and RA-SR mode.
D-SR is distributed, is carried by PUCCH by RRC (Radio Resource Control, Radio Resource is controlled) layer.When adopting the D-SR mode to report SR, when UE and eNB not necessarily have the D-SR resource under synchronous regime, necessarily there is no the D-SR resource under asynchronous regime.The basic principle that general SR reports is: as long as the D-SR resource is arranged, just do not adopt the RA-SR mode to report.
During the reporting of SR, be engraved in receive eNB be UE distribute for before the uplink shared channel resources that sends data, can on the resource that can send SR, repeat to send SR.
3) arrive the time of distributing the SPS resource for UE
In order to reduce the control signal expense, support the resource allocation mode of semi-continuous scheduling in the LTE system, mainly for the VoIP business.When network side is that UE is while having configured half-persistence scheduling resources, network side can periodically be specified big or small uplink shared channel resources for UE distributes on fixing frequency domain resource position, thereby reduced PDCCH (PhysicalDownlink Control Channel, the Physical Downlink Control Channel) signaling consumption for the uplink shared channel resources concrete distributed to the UE indication.
The above-mentioned resource distribution mode that existing LTE grid side adopts, network side is that UE carries out the UL-SCH resource and divides timing meeting trigger condition, for the resource size that UE distributes uncertain, the resource that at least will guarantee distribution can be held the BSR that UE sends, the resource that UE distributes if is excessive, will cause the wasting of resources; The resource that UE distributes if is too small, needs terminal to carry out request resource by BSR again, will cause data send delay.
Machine Type (Machine-type communication, MTC) communication is as a kind of novel communication theory, its objective is the communication technology of number of different types is organically combined, as: machine is to machine communication, apparatus control communication, man-machine interaction communication, mobile interconnected communication, thus the development of promotion social production and life style.The business of future Human To Human communication may only account for 1/3 of whole terminal market, and the communication of larger quantity is the MTC communication service.Sometimes, MTC communication is called again machinery compartment (Machine-to-machine, M2M) communication or Internet of Things.
Current mobile communications network designs for interpersonal communication, as determining of network capacity etc.If the characteristics that hope utilizes mobile communications network to support MTC to communicate by letter just need to communicate by letter according to MTC are optimized the mechanism of mobile communication system, in order to can in the situation that traditional person to person communication is not subject to or is subject to less the impact, realize better MTC communication.
The Some features that the current MTC communication of recognizing may exist has: the MTC terminal has Hypomobility; The time that MTC terminal and network side carry out transfer of data is controlled; MTC terminal energy constraint, require extremely low power consumption; Only carry out the communication of small data quantity between MTC terminal and network side; The MTC terminal can be take group and be managed as unit; The MTC terminal of a reality can have above-mentioned one or more characteristics.
During MTC communication, if network side adopts above-mentioned resource distribution mode, equally due to network side when meeting trigger condition and be terminal distribution UL-SCH resource, resource is changeable, the resource that will guarantee less distribution can be held the BSR that UE sends, make for the MTC terminal with small data quantity communication characteristics, the resource of its distribution is excessive if, will cause the wasting of resources; If the resource of distributing is too small, need the MTC terminal to carry out request resource by BSR again, will cause MTC terminal data transmission lag.
Summary of the invention
The invention provides a kind of resource allocation methods base station, optimize existing resource allocation methods, resource is distributed more and rationalize, improve resource utilization.
The invention provides a kind of resource allocation methods, comprising:
Base station obtains the relevant information of user terminal data transmission quantity, and determines the user terminal data transmission quantity according to described relevant information;
The resource information that user terminal is required is determined according to described user terminal data transmission quantity in base station;
Base station is that user terminal distributes the uplink shared channel resources be complementary with described user terminal resource requirement information.
The present invention also provides a kind of base station, comprising:
The transmission quantity acquiring unit, obtain the relevant information of user terminal data transmission quantity, and determine the user terminal data transmission quantity according to described relevant information;
The resource requirement determining unit, for determining according to described user terminal data transmission quantity the resource information that user terminal is required;
Resource allocation unit, be used to user terminal to distribute the uplink shared channel resources be complementary with described user terminal resource requirement information.
Utilize resource allocation methods provided by the invention and base station to there is following beneficial effect: because the resource information that user terminal is required is determined by definite user terminal data transmission quantity in base station, make and determine carrying out the uplink shared channel resources that the resource distribution distributes, therefore can not cause resource to distribute waste, effectively improve resource utilization.
The accompanying drawing explanation
Fig. 1 is resource allocation methods flow chart in the embodiment of the present invention;
Fig. 2 is to receive resource allocation methods flow chart under the SR trigger condition in the embodiment of the present invention;
Fig. 3 is the schematic diagram of responding with the logic channel group that unit resource granularity form means in the embodiment of the present invention on BSR;
The structured flowchart that Fig. 4 is the base station that provides in the embodiment of the present invention.
Embodiment
The resource allocation methods and the base station that the present invention are proposed below in conjunction with drawings and Examples are illustrated in greater detail.
Divide timing for fear of base station carrying out resource, in the situation that uncertain user terminal completes the uplink shared channel resources that the required resource information of transfer of data distributes is often excessive or too small, even base station receives the BSR of user terminal to send up, also can only determine that user terminal sends in-cache status in buffer memory, when if this uplink shared channel resources for the user terminal distribution is too small, also need user terminal again to report BSR request Resources allocation, the delay that therefore causes user terminal signaling and data to send.
The resource allocation methods that the present invention proposes as described in Figure 1, comprises the following steps:
Step S101, base station obtains the relevant information of user terminal data transmission quantity, and determines the user terminal data transmission quantity according to described relevant information;
User terminal is in communication process, the relevant information that can complete the volume of transmitted data of a data transfer for definite user terminal is carried at the upstream data that some report base station, or report some network equipments with base station communication, preferably, in the present embodiment, base station obtains described relevant information from the network equipment communicated with; Or base station obtains described relevant information from the upstream data that comprises described relevant information of user terminal to send up.Above-mentioned network equipment is generally the last layer network equipment of base station, as home subscriber serving HSS (Home Subscriber Server), Mobility Management Entity MME (Mobility ManagementEntity), gateway GW (Gate Way), MTC server etc., also claim base station to obtain the mode of relevant information for to obtain from core net from network equipment.Obtain the mode of relevant information, determined the concrete form difference of the relevant information obtained, as long as but can reach the purpose that can determine the user terminal data transmission quantity.
At user terminal, it is the MTC terminal, base station adopts while from the network equipment communicated with, obtaining the mode of relevant information, the user customized information of this relevant information MTC terminal that to be network equipment obtain from the equipment of the user customized information that stores the MTC terminal, the equipment of the user customized information of the above-mentioned MTC of storing terminal is specially that following arbitrary equipment or its combination read: the home subscriber serving HSS, Mobility Management Entity MME, MTC gateway and MTC server etc., according to existing user terminal communication method, user terminal can report user customized information above-mentioned network equipment or user customized information and directly be stored in above-mentioned network equipment, user customized information comprises the user terminal data transmission quantity, or the related information relevant to MTC terminal data transmission quantity that is the MTC terminal to report that receives of network equipment for the relevant information of determining the user terminal data transmission quantity, as: the group information under the corresponding MTC characteristics of MTC terminal information, MTC terminal, MTC terminal current data send the indication information that needs volume of transmitted data, or above-mentioned for the relevant information of determining the user terminal data transmission quantity, be the user customized information that network equipment reads, and the combination of the related information relevant to MTC terminal data transmission quantity received.Therefore, the volume of transmitted data that user terminal completes a data transfer can be determined by above-mentioned three kinds of multi-form relevant informations in base station.
Base station adopts while from the upstream data of user terminal to send up, obtaining the mode of described relevant information, obtains the upstream data that comprises described relevant information by following either type:
1) receive the upstream data sent in the rear access network process (attach process) of user terminal start;
2) receive user terminal and connect at the radio resource control RRC layer upstream data sent in the process of setting up;
3) connect at the radio resource control RRC layer upstream data sent in the process of reshuffling;
4) receive the upstream data sent in the user terminal random access procedure;
5) receive the upstream data sent in the process of user terminal to send up user terminal information, as report characteristics (feature) information, the transmitted data amount information of MTC terminal, the process of translational speed information etc.
According to existing user terminal communication method, in above-mentioned five kinds of either types in the upstream data of user terminal to send up, all carry for determining the relevant information of user terminal data transmission quantity, the upstream data that certainly, can also adopt other communication process of user terminal to report obtains and carries for determining the relevant information of user terminal data transmission quantity.
Step S102, the resource information that user terminal is required is determined according to determined user terminal data transmission quantity in step S101 in base station;
In the situation that determined the user terminal data transmission quantity, base station can determine that user terminal transfers the required resource information of data.Preferably, in the present embodiment, the required resource information of the determined user terminal in base station is that user terminal completes the required total resources information of all transfer of data.Because the required total resources information of MTC terminal can be the multiple of unit resource granularity, so the required resource information of the determined user terminal in base station can also be resource granularity information, resource granularity information comprises that user terminal completes unit data and transmits required unit resource granularity, and required unit data the number of transmissions while completing all transfer of data, the i.e. multiple of unit resource granularity.
Step S103, base station is that user terminal distributes the uplink shared channel resources be complementary with described user terminal resource requirement information.Because base station has obtained user terminal resource requirement information in advance, therefore divide timing to take situation according to uplink shared channel resources carrying out resource, need the uplink shared channel resources stool and urine of distributing to determine, base station, no matter adopt what resource distribution mode, makes the final uplink shared channel resources distributed can make user terminal complete transfer of data.Preferably, base station is that user terminal distributes uplink shared channel resources to comprise: described base station uplink shared channel resources in current dispatching cycle enough divides timing, in current dispatching cycle, is that user terminal distributes the uplink shared channel resources be complementary with described user terminal resource requirement information; Otherwise be several times that in current dispatching cycle and in follow-up dispatching cycle user terminal distributes uplink shared channel resources, until be complementary for Uplink Shared Channel total resources and the described user terminal resource requirement information of user terminal distribution.Can not distribute excessive resource to cause the wasting of resources because the resource size of distributing is uncertain so on the one hand, even the required not resource information of one side primary distribution, can determine and also will continue the resource of distributing according to distribution condition, and do not need user terminal again to report BSR to ask, therefore, reduce signaling consumption and the data transfer delay when MTC terminal is carried out to scheduling of resource.
In the embodiment of the present invention, base station preferably adopts and meets the mode that trigger condition starts Resources allocation, particularly, when base station can adopt following any or any number of condition as trigger condition, is that user terminal distributes uplink shared channel resources:
1) receive the preamble premable that user terminal sends in random access procedure
As previously mentioned, when network side receives the preamble that UE sends in random access procedure, illustrate that UE has data to send, need to distribute the PUSCH resource for UE, base station, according to the situation that takies of uplink shared channel resources, completes the uplink shared channel resources that distributes the resource information required with user terminal to be complementary for user terminal several times in current dispatching cycle or in a plurality of dispatching cycles.Due to generally, preamble is that all user terminals adopt the mode of competition to use, just can determine the resource information that user terminal is required in order to make base station at the preamble that receives the user terminal transmission, need to be for user terminal distributes its special-purpose preamble, for the definite dedicated preamble of user terminal can or be handed down to the signaling user terminal of user terminal by system broadcasts; Or, dedicated preamble is stored on user terminal or Universal Integrated Circuit Card UICC corresponding to user terminal; Or, in standard or implementation procedure, arranged.
2) receive the dispatch request SR of the request Resources allocation of user terminal to send up;
As previously mentioned, for UE, if do not have UL-SCH resource to transmit BSR, trigger SR and report.In the situation that triggering SR reports, report the mode of SR to have two kinds, i.e. aforesaid D-SR mode and RA-SR mode.After base station receives the SR of user terminal to send up, complete the uplink shared channel resources that distributes the resource information required with user terminal to be complementary for user terminal in current dispatching cycle or in a plurality of dispatching cycles.If, in the situation that user terminal does not have bursty data to send, do not need user terminal to report again BSR.
3) receive the buffer status reporting BSR of the current transmission buffer status of reflection user terminal of user terminal to send up;
For UE, UE has upstream data to need to send, but does not send the UL-SCH resource of data in up link, triggers so BSR and reports.Because base station has obtained the required resource information of UE, so generally do not need UE to report again BSR, but when not getting rid of UE and having bursty data (as: needs are report measurement information simultaneously) to occur that UE utilizes the resource of base station assigns can not send the data of all needs transmissions in sending data procedures, UE can carry BSR in the data of this transmission so, remains this and fails the data that send.In addition, when in the present embodiment, the required resource information of the determined user terminal in base station is resource granularity information, the buffer status reporting that the user terminal that base station receives sends be take the unit resource granularity as unit.
4) arrive the designated time of distributing uplink shared channel resources for user terminal.
As the improvement that UE has been configured to the half-persistence scheduling resources mode, base station can be that UE distributes uplink shared channel resources in the designated time, adopt arrival to distribute the designated time of uplink shared channel resources as trigger condition for user terminal, also comprise by system broadcasts or the signaling that is handed down to user terminal described designated time prior notice user terminal simultaneously, or the described designated time is stored on user terminal or Universal Integrated Circuit Card UICC corresponding to user terminal.The time of above-mentioned agreement can be the periodicity time, can be also the aperiodic time.In the designated time, be the mode that user terminal distributes uplink shared channel resources, the resource that also is applicable to have the MTC terminal of time controllable characteristics is distributed.
Base station also preferably includes step S104 after completing and distributing uplink shared channel resources, by system broadcasts or the signaling that is handed down to user terminal, by distributed uplink shared channel resources, notifies described user terminal.Be handed down to the signaling of user terminal, specifically can comprise: RRC signaling, MAC CE, physical layer signaling etc.
Below providing base station adopts different trigger conditions to trigger the detailed process of Resources allocation.
In embodiments of the invention one, the dispatch request SR of request Resources allocation of user terminal to send up is usingd as trigger condition in base station.In the present embodiment, user terminal is the MTC terminal, and as shown in Figure 2, the communication process of base station and user terminal is:
Step S201, base station obtains for determining the relevant information of MTC terminal data transmission quantity from network equipment, specifically can adopt aforementioned manner, as this relevant information is the user customized information that the HSS that network equipment is corresponding from the MTC terminal (and/or MTC gateway, MTC server) receives, and determine MTC terminal data transmission quantity according to relevant information.
Step S202, the resource information that the MTC terminal is required is determined according to MTC terminal data transmission quantity in base station, as determined MTC terminal resource requirement information, for needing size, is the resource of 200 bytes.
Step S203, when the MTC of synchronous regime terminal has data to send to base station but there is no the PUSCH resource, send SR to base station;
Step S204, after base station receives SR, the user customized information that the HSS corresponding from the MTC terminal (and/or MTC gateway, MTC server) receives in conjunction with network equipment in advance due to base station is determined the user terminal data transmission quantity, and according to this volume of transmitted data definite MTC terminal resource requirement information, therefore in this step, base station is the uplink shared channel resources that the MTC terminal distribution is determined size (200 byte) according to MTC terminal resource requirement information.
Step S205, base station by system broadcasts or the signaling that is handed down to user terminal by distributed uplink shared channel resources notice MTC terminal, as the mode by the PDCCH order is notified the MTC terminal.
Step S206, the MTC terminal loads the data that need transmission after receiving the ascending resource distribution on corresponding resource.
Visible, in above-mentioned steps, in base station, receiving in the process of Resources allocation under the SR triggering, do not need under normal circumstances MTC terminal to report BSR.In the present embodiment, when the resource of distributing occurs sending all data that need to send due to bursty data (as: needing the while report measurement information), carry BSR in the data that so can the MTC terminal send when bursty data occurring, remain in the ascending resource that these data of failing to send distribute afterwards and send.When not having bursty data to occur, if the data volume that the resource of distributing need to send due to network MTC terminal not, the MTC terminal also can not send BSR, because the resource that also needs distribution can be determined according to MTC terminal resource requirement and current resource of having distributed in base station, so need not send BSR for the MTC terminal, and be only that the scheduling of waiting for base station just can.
In embodiments of the invention two, the BSR of the current transmission buffer status of reflection MTC terminal of MTC terminal to report is usingd as trigger condition in base station.
In the LTE system, the current corresponding total byte number of data sent that needs of the MTC terminal of the BSR of MTC terminal to report reflection.When the base station required resource information of determined MTC terminal is resource granularity information, the BSR that the MTC terminal that base station receives sends be take the unit resource granularity as unit (reporting referred to herein as improved BSR), what report due to improved BSR is the unit resource granularity, thereby the data volume reported compares traditional mode that reports and greatly reduces, so the data delay caused is much smaller comparatively speaking.Correspondingly, improved BSR can adopt complete BSR to report mode, the BSR reflection MTC terminal reported sends the corresponding buffer memory situation of all logic channel groups in buffer memory, wherein different logic channel groups is for the data of storage class, can also adopt the BSR of brachymemma to report mode, the BSR reflection MTC terminal reported sends the corresponding buffer memory situation of part logic channel group (preferably selecting high priority logic channel group) in buffer memory.In the present embodiment, adopt improved BSR to report mode, and report the corresponding buffer memory situation of all logical groups, the number of logic channel group is 2, based on unit resource granularity (being made as 80 bytes here), reported, as previously mentioned, the unit resource granularity is informed base station by core net, (the unit resource granularity also can be used as the customized information of user terminal certainly, customized information is stored on user terminal and network equipment, therefore customized information has identical understanding between user terminal and network side and base station), so numerical value of the unit resource granularity that base station reports according to unit resource granularity and BSR, determine and also need to distribute how many resources for MTC.
The MTC terminal sends improved BSR form as shown in Figure 3 to base station, corresponding first logic channel group of Buffer size #0 wherein, corresponding second the logic channel group of Buffer size #1.After base station receives BSR, can determine that MTC needs the resource of 3 unit resource granularities altogether, the unit resource granularity of informing in conjunction with core net, can determine that required total resources are 240 bytes.
In embodiments of the invention three, it is trigger condition that the MTC terminal be take the designated time that arrival is MTC terminal distribution uplink shared channel resources, and this designated time can be the periodic time, can be also the aperiodic time.The mode of notice MTC terminal designated time can adopt: 1) system broadcasts; 2) be handed down to the signaling of user terminal, specifically adopt dedicated signaling as NAS signaling, RRC signaling (as: RRC connects reconfiguration message or the new message of introducing), MAC CE, physical layer command etc.Designated time also is stored on user terminal or Universal Integrated Circuit Card UICC corresponding to user terminal.
In the present embodiment for determining the relevant information of MTC terminal data transmission quantity, report base station in the attach process of MTC terminal, MTC terminal data transmission quantity is determined according to this relevant information in base station, and determine according to this transfer of data the resource that the MTC terminal is required, need the resource of 80 bytes as determined the MTC terminal.Base station on the aperiodic designated time for the MTC terminal resource requirement information resource of sizing (80 byte) really that is complementary.Adopt RRC to connect the resource that reconfiguration message was distributed in the notice MTC terminal designated time.Detailed process is:
1) base station (can be also core net here) be defined as time and resource location (concrete uplink shared channel resources) that the MTC terminal distribution is determined big or small resource (80 byte);
2) base station connects reconfiguration message by RRC and will determine time of resource and resource location notice MTC terminal for the MTC terminal distribution;
3) network side reserves the resource that the MTC terminal is used on definite time and resource location, distributes reserved resource while arriving the designated time.
In embodiments of the invention four, preamble preamble that user terminal sends in random access procedure is usingd as trigger condition in base station.The base station special-purpose preamble that has been the MTC terminal distribution in the present embodiment, base station just can determine it is that MTC terminal sends after receiving dedicated preamble.Detailed process by: base station is obtained above-mentioned relevant information from core net, perhaps according to the distribution mechanism of oneself, obtain above-mentioned relevant information, according to relevant information identification MTC equipment, and determine MTC terminal data transmission quantity in conjunction with the customized information (comprising the corresponding data volume of MTC device transmission in customized information) of this MTC terminal, and determine terminal resource requirement information according to the terminal data transmission quantity; After base station receives preamble, according to terminal resource requirement information, carry out the resource distribution; Base station will determine that by the PDCCH signaling big or small resource location information tells the MTC terminal.Specific embodiment process and aforementioned similar, no longer describe in detail here.
In embodiments of the invention five, a kind of base station is provided, as shown in Figure 4, this base station comprises: transmission quantity acquiring unit 401, obtain the relevant information of user terminal data transmission quantity, and determine the user terminal data transmission quantity according to described relevant information; Resource requirement determining unit 402, for determining according to described user terminal data transmission quantity the resource information that user terminal is required; Resource allocation unit 403, be used to user terminal to distribute the uplink shared channel resources be complementary with described user terminal resource requirement information.
Preferably, described transmission quantity acquiring unit 401 is specifically for obtaining described relevant information the network equipment from base station communication.Described relevant information comprises: the user customized information of the MTC terminal that described network equipment obtains from the equipment of the user customized information that stores the MTC terminal; And/or described network equipment receives from the MTC terminal, the related information relevant to MTC terminal data transmission quantity.
Perhaps, described transmission quantity acquiring unit is specifically for obtaining described relevant information the upstream data sent from user terminal.The upstream data that described user terminal sends at least comprises a kind of upstream data in following five kinds of upstream datas: the upstream data sent in user terminal start access network process; User terminal connects at radio resource control layer the upstream data sent in the process of setting up; User terminal connects at radio resource control layer the upstream data sent in the process of reshuffling; The upstream data sent in the user terminal random access procedure; The upstream data sent in the process of user terminal to send up user terminal information.
The determining unit of resource requirement described in the present embodiment 402 completes the required total resources information of all transfer of data specifically for determine user terminal according to described user terminal data transmission quantity; Or, for determining that according to described user terminal data transmission quantity user terminal completes unit data and transmits required unit resource granularity, and required unit data the number of transmissions while completing all transfer of data.
This base station also comprises one of employing following four or any number of 404: the first trigger elements of trigger element, for when receiving the preamble that user terminal sends at random access procedure, triggering described resource allocation unit is that user terminal distributes uplink shared channel resources: the second trigger element, for when the dispatch request of the request Resources allocation that receives user terminal to send up, triggering described resource allocation unit is that user terminal distributes uplink shared channel resources; The 3rd trigger element, during for the buffer status reporting of the current transmission buffer status of reflection user terminal receiving user terminal to send up, triggering described resource allocation unit is that user terminal distributes uplink shared channel resources; The 4th trigger element, for when arrival distributes the designated time of uplink shared channel resources for user terminal, triggering described resource allocation unit is that user terminal distributes uplink shared channel resources.
Preferably, described resource allocation unit 403 comprises: the first resource allocation units, for at the current dispatching cycle uplink shared channel resources, enough dividing timing, be that user terminal distributes the uplink shared channel resources be complementary with described user terminal resource requirement information in current dispatching cycle, otherwise transfer to the Secondary resource allocation units, carry out the resource distribution; The Secondary resource allocation units, being used in current dispatching cycle and follow-up dispatching cycle is that user terminal distributes uplink shared channel resources several times, until Uplink Shared Channel total resources and the described user terminal resource requirement information of distributing for user terminal are complementary.This base station also comprises: notification unit 405, for after completing uplink shared channel resources at described resource allocation unit and distributing, by system broadcasts or the signaling that is handed down to user terminal, by distributed uplink shared channel resources, notify described user terminal.
Resource allocation methods proposed by the invention and base station, in the LTE mobile communication system of supporting MTC, the base station of network side can obtain MTC terminal resource requirement information, and be that the MTC terminal distribution is determined big or small resource according to MTC terminal resource requirement information, signaling consumption and data transfer delay while to reduce, the MTC terminal being carried out to scheduling of resource.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. a resource allocation methods, is characterized in that, comprising:
Base station obtains the relevant information of user terminal data transmission quantity from the network equipment with base station communication, and determine the user terminal data transmission quantity according to described relevant information, wherein, described user terminal is the MTC terminal, and described relevant information comprises the user customized information of the MTC terminal that described network equipment obtains from the equipment of the user customized information that stores the MTC terminal;
Base station is according to described user terminal data transmission quantity, determine that the required resource information of user terminal is that user terminal completes the required total resources information of all transfer of data, or, user terminal completes unit data when transmitting required unit resource granularity and completing all transfer of data required unit data the number of transmissions;
Base station is that user terminal distributes the uplink shared channel resources be complementary with described user terminal resource requirement information.
2. the method for claim 1, is characterized in that, described base station be user terminal distribute uplink shared channel resources adopt following any or a plurality of as trigger condition:
Receive the preamble that user terminal sends in random access procedure;
Receive the dispatch request of the request Resources allocation of user terminal to send up;
Receive the buffer status reporting of the current transmission buffer status of reflection user terminal of user terminal to send up;
Determine whether to arrive the designated time of distributing uplink shared channel resources for user terminal.
3. method as claimed in claim 2, it is characterized in that, the required resource information of the determined user terminal in described base station is that user terminal completes unit data and transmits required unit resource granularity, and while completing all transfer of data during required unit data the number of transmissions, the buffer status reporting that the user terminal that described base station receives sends be take the unit resource granularity as unit.
4. method as claimed in claim 2, is characterized in that, described base station is, before user terminal distributes uplink shared channel resources, also to comprise:
By system broadcasts or the signaling that is handed down to user terminal by described designated time informing user terminal; Or, the described designated time is stored on user terminal or Universal Integrated Circuit Card UICC corresponding to user terminal.
5. described method as arbitrary as claim 1～4, is characterized in that, base station is that user terminal distributes the uplink shared channel resources be complementary with described user terminal resource requirement information, specifically comprises:
Described base station uplink shared channel resources in current dispatching cycle enough divides timing, in current dispatching cycle, is that user terminal distributes the uplink shared channel resources be complementary with described user terminal resource requirement information; Otherwise
Be several times that in current dispatching cycle and in follow-up dispatching cycle user terminal distributes uplink shared channel resources, until be complementary for Uplink Shared Channel total resources and the described user terminal resource requirement information of user terminal distribution.
6. described method as arbitrary as claim 1～4, is characterized in that, described base station also comprises after completing and distributing uplink shared channel resources:
Notify described user terminal by system broadcasts or the signaling that is handed down to user terminal by distributed uplink shared channel resources.
7. a base station, is characterized in that, comprising:
The transmission quantity acquiring unit, for obtain the relevant information of user terminal data transmission quantity from the network equipment with base station communication, and determine the user terminal data transmission quantity according to described relevant information, wherein, described user terminal is the MTC terminal, and described relevant information comprises the user customized information of the MTC terminal that described network equipment obtains from the equipment of the user customized information that stores the MTC terminal;
The resource requirement determining unit, be used for according to described user terminal data transmission quantity, determine that the required resource information of user terminal is that user terminal completes the required total resources information of all transfer of data, or, user terminal completes unit data when transmitting required unit resource granularity and completing all transfer of data required unit data the number of transmissions;
Resource allocation unit, be used to user terminal to distribute the uplink shared channel resources be complementary with described user terminal resource requirement information.
8. base station as claimed in claim 7, is characterized in that, this base station also at least comprises in following four trigger elements:
The first trigger element, for when receiving the preamble that user terminal sends at random access procedure, triggering described resource allocation unit is that user terminal distributes uplink shared channel resources:
The second trigger element, during for the dispatch request of the request Resources allocation receiving user terminal to send up, triggering described resource allocation unit is that user terminal distributes uplink shared channel resources;
The 3rd trigger element, during for the buffer status reporting of the current transmission buffer status of reflection user terminal receiving user terminal to send up, triggering described resource allocation unit is that user terminal distributes uplink shared channel resources;
The 4th trigger element, for when arrival distributes the designated time of uplink shared channel resources for user terminal, triggering described resource allocation unit is that user terminal distributes uplink shared channel resources.
9. described base station as arbitrary as claim 7～8, is characterized in that, described resource allocation unit comprises:
The first resource allocation units, for at the current dispatching cycle uplink shared channel resources, enough dividing timing, be that user terminal distributes the uplink shared channel resources be complementary with described user terminal resource requirement information in current dispatching cycle, otherwise transfer to the Secondary resource allocation units, carry out the resource distribution;
The Secondary resource allocation units, being used in current dispatching cycle and follow-up dispatching cycle is that user terminal distributes uplink shared channel resources several times, until Uplink Shared Channel total resources and the described user terminal resource requirement information of distributing for user terminal are complementary.
10. described base station as arbitrary as claim 7～8, is characterized in that, this base station also comprises:
Notification unit, for after completing uplink shared channel resources at described resource allocation unit and distributing, notify described user terminal by system broadcasts or the signaling that is handed down to user terminal by distributed uplink shared channel resources.
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