CN101500311B - Allocation method, system and apparatus for continuous scheduling resource - Google Patents
Allocation method, system and apparatus for continuous scheduling resource Download PDFInfo
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Abstract
The invention discloses an allocating method, a system and a device for continuous scheduling resources to realize allocation of multi-cycle continuous scheduling resources. The allocating method comprises the following steps: a network side allocates the continuous scheduling resources for a user terminal and sends the initial time and the cycle of the continuous scheduling resources to the user terminal; and the user terminal obtains the continuous scheduling resources allocated by the network side through the initial time and the cycle of the continuous scheduling resources.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of distribution method, system and device of persistent scheduling resource.
Background technology
In wireless communication system, need give different users to accomplish the transmission of miscellaneous service Radio Resource (comprising resources such as time, frequency, code channel) reasonable distribution.When knowing certain professional characteristic,, can adopt the mode of continuous dispatching or semi-continuous scheduling to send this professional data, to reduce the dispatch expense like data volume, data arrives time etc.
Semi-continuous scheduling refers to that the base station gives certain one or more professional allocation of packets fixed resources; These packets send on the resource location of appointment; Need not carry out resource allocation through dispatch; Other packets of this business then adopt the form of dynamic dispatching to send, and need carry out resource allocation through dispatch.
Continuous dispatching refers to that the base station all distributes fixed resource for certain all professional packets (comprising different types of data bag and the re-transmission of packet under a kind of business); Packet sends at the resource location of appointment, need not carry out resource allocation through dispatch.Continuous dispatching need be carried out the configuration of predefine resource, comprises that the configuration service packet sends cycle, frequency resource, Modulation and Coding Scheme (MCS) form etc.To with a kind of business, possibly have the configuration that the multiple business packet sends the cycle, speech transmissions (VoIP, the Voice over Internet Protocol) business with internet protocol-based describes for example below.
VoIP traffic transmission model is as shown in Figure 1, and the VoIP business mainly is divided into active period (talk spurt) and quiet period (silent period), the voice packets size basic fixed of active period, and the arrival cycle is 20ms; (SID, Silence Insertion Descriptor) is littler than voice packets for the bag of quiet period, and the arrival cycle is 160ms.The initial transmission of in Long Term Evolution research project (LTE, Long Term Evolution), confirming the voice bag is carried out continuous dispatching, promptly distributes the predefine resource to carry out continuous dispatching at first the voice packets initial transmission at active period.
The arrival cycle of voice packets is 20ms, and in order to guarantee timely transmission, generally giving the persistent resources cycle of the initial transmission distribution of voice packets is 20ms.If but the two-way time of voice packets (RTT, Round TripTime), promptly the time interval between twice transmission equals 10ms, and then the re-transmission meeting second time of first packet occurs in same subframe with the initial transmission of second packet, promptly clashes.
At present LTE to the distribution of persistent scheduling resource to the monocycle persistent scheduling resource; Promptly use radio resource controller (RRC; Radio Resource Control) carries out the cycle configuration; Like 20ms,, continuous dispatching distribute MCS, frequency location etc. to activate continuous dispatching when beginning with physical layer descending control channel (PDCCH, Physical Downlink Control CHannel).But this scheme has been mixed many details at realization multicycle persistent scheduling resource branch and can't have been confirmed.
In sum, prior art can't realize multicycle persistent scheduling resource distribution.
Summary of the invention
The embodiment of the invention provides a kind of distribution method, system and device of persistent scheduling resource, in order to realize the distribution of multicycle persistent scheduling resource.
The distribution method of a kind of persistent scheduling resource that the embodiment of the invention provides comprises:
Network side is according to the transmission time characteristic and the retransmission time interval of business data packet; For the initial transmission of user terminal current data packet is distributed persistent scheduling resource; Make configuration not overlap for the resource of current data packet initial transmission to the resource that previous packet retransmits with configuration, the transmission time characteristic of said business data packet comprises the Transmission Time Interval and the packet size of business data packet; And, the zero-time and the cycle of said persistent scheduling resource sent to said user terminal;
Said user terminal obtains the persistent scheduling resource that said network side distributes through the zero-time and the cycle of said persistent scheduling resource.
The step that said network side sends to said user terminal with the zero-time of said persistent scheduling resource and cycle comprises:
The corresponding relation of initial subframe of cycle and the persistent scheduling resource of the said persistent scheduling resource of said user terminal is indicated in the base station through the network side signaling;
The frequency location and the Modulation and Coding Scheme MCS of persistent scheduling resource distributed in said base station through the dispatch of physical layer descending control channel PDCCH.
Said user terminal is through the zero-time and the cycle of said persistent scheduling resource, and the step that obtains the persistent scheduling resource of said network side distribution comprises:
Said user terminal obtains the initial subframe of persistent scheduling resource according to the indication of the dispatch of said PDCCH, and according to this initial subframe and said corresponding relation, confirms the cycle of said persistent scheduling resource.
The step that said network side sends to said user terminal with the zero-time of said persistent scheduling resource and cycle comprises:
The base station indicates subframe numbers and the packet that said user terminal transmits preceding two packets to arrive the cycle through the network side signaling;
The frequency location and the Modulation and Coding Scheme MCS of persistent scheduling resource distributed in the base station through the dispatch of physical layer descending control channel PDCCH.
Said user terminal is through the zero-time and the cycle of said persistent scheduling resource, and the step that obtains the persistent scheduling resource of said network side distribution comprises:
Said user terminal obtains transmitting the subframe numbers of first packet in said preceding two packets according to the indication of the dispatch of said PDCCH, and according to this subframe numbers, confirms the subframe numbers of second packet of transmission;
Said user terminal is according to the subframe numbers of said first packet of transmission and second packet, and the said packet arrival cycle, confirms the cycle of said persistent scheduling resource.
The step that said network side sends to said user terminal with the zero-time of said persistent scheduling resource and cycle comprises:
A persistent scheduling resource cycle is distributed through the network side signaling in the base station;
Dispatch first packet through the dispatch of physical layer descending control channel PDCCH the base station, in dividing frequency resource location and Modulation and Coding Scheme MCS, confirms the initial moment of odd number bag;
Dispatch second packet through the dispatch of PDCCH the base station, in dividing frequency resource location and MCS, confirms the initial moment of even number bag.
Said user terminal is through the zero-time and the cycle of said persistent scheduling resource, and the step that obtains the persistent scheduling resource of said network side distribution comprises:
Said user terminal is according to the said persistent scheduling resource cycle, and the initial moment of said odd number bag and even number bag, confirms persistent scheduling resource information.
This method also comprises:
Said user terminal is according to the initial moment of said odd number bag, and is every at a distance from said persistent scheduling resource cycle transmission odd number bag; And,, every at a distance from said persistent scheduling resource cycle transmission even number bag according to the initial moment of said even number bag.
The distribution system of a kind of persistent scheduling resource that the embodiment of the invention provides comprises: base station and user terminal;
Said base station; Be used for transmission time characteristic and retransmission time interval according to business data packet; For the initial transmission of said user terminal current data packet is distributed persistent scheduling resource; Make configuration not overlap for the resource of current data packet initial transmission to the resource that previous packet retransmits with configuration, the transmission time characteristic of said business data packet comprises the Transmission Time Interval and the packet size of business data packet; And, the zero-time and the cycle of said persistent scheduling resource sent to said user terminal;
Said user terminal is used for zero-time and cycle through said persistent scheduling resource, obtains the persistent scheduling resource of said base station assigns.
Said base station comprises:
Indicating member is used for indicating through the network side signaling corresponding relation of initial subframe of cycle and the persistent scheduling resource of the said persistent scheduling resource of said user terminal;
The Dispatching Unit of PDCCH is used for frequency location and Modulation and Coding Scheme MCS through the dispatch distribution persistent scheduling resource of physical layer descending control channel PDCCH.
Said user terminal comprises:
Confirm initial subframe unit, be used for indication, obtain the initial subframe of persistent scheduling resource according to the dispatch of said PDCCH;
Confirm periodic unit, be used for confirming the cycle of said persistent scheduling resource according to said initial subframe and said corresponding relation.
Said base station comprises:
Indicating member is used for indicating subframe numbers and the packet that said user terminal transmits preceding two packets to arrive the cycle through the network side signaling;
The Dispatching Unit of PDCCH is used for frequency location and Modulation and Coding Scheme MCS through the dispatch distribution persistent scheduling resource of physical layer descending control channel PDCCH.
Said user terminal comprises:
Confirm preceding two data steamed stuffed bun frame number unit, be used for indication, obtain transmitting the frame number that gives of first packet in said preceding two packets, and, confirm the subframe numbers of second packet of transmission according to this subframe numbers according to the dispatch of said PDCCH;
Confirm periodic unit, be used for subframe numbers, and said packet arrives the cycle, confirm the cycle of said persistent scheduling resource according to transmission said first packet and second packet.
Said base station comprises:
The assignment period unit is used for distributing a persistent scheduling resource cycle through the network side signaling;
Odd number packet scheduling unit is used for through the dispatch of physical layer descending control channel PDCCH first packet being dispatched, and in dividing frequency resource location and Modulation and Coding Scheme MCS, confirms the initial moment of odd number bag;
Even number packet scheduling unit is used for the base station and through the dispatch of PDCCH second packet is dispatched, and in dividing frequency resource location and MCS, confirms the initial moment of even number bag.
Said user terminal comprises:
Receiving element is used to receive the network side signaling of said base station transmission and the dispatch of PDCCH;
Persistent scheduling resource information is confirmed the unit, is used for the persistent scheduling resource cycle according to said network side signaling indication, and the odd number bag of the dispatch of said PDCCH indication and the initial moment of even number bag, confirms persistent scheduling resource information.
Said user terminal also comprises:
Transmitting element is used for according to said persistent scheduling resource information, and is from the initial moment of said odd number bag, every at a distance from said persistent scheduling resource cycle transmission odd number bag; And,, every at a distance from said persistent scheduling resource cycle transmission even number bag from the initial moment of said even number bag.
A kind of base station that the embodiment of the invention provides; Said base station is used for transmission time characteristic and the retransmission time interval according to business data packet; For the initial transmission of user terminal current data packet is distributed persistent scheduling resource; Make configuration not overlap for the resource of current data packet initial transmission to the resource that previous packet retransmits with configuration, the transmission time characteristic of said business data packet comprises the Transmission Time Interval and the packet size of business data packet; And, the zero-time and the cycle of persistent scheduling resource sent to said user terminal, comprising:
Indicating member is used for the corresponding relation of the initial subframe of cycle and persistent scheduling resource through network side signaling indicating user terminal persistent scheduling resource;
The Dispatching Unit of PDCCH is used for frequency location and Modulation and Coding Scheme MCS through the dispatch distribution persistent scheduling resource of physical layer descending control channel PDCCH.
A kind of base station that the embodiment of the invention provides; Said base station is used for transmission time characteristic and the retransmission time interval according to business data packet; For the initial transmission of user terminal current data packet is distributed persistent scheduling resource; Make configuration not overlap for the resource of current data packet initial transmission to the resource that previous packet retransmits with configuration, the transmission time characteristic of said business data packet comprises the Transmission Time Interval and the packet size of business data packet; And, the zero-time and the cycle of said persistent scheduling resource sent to said user terminal, comprising:
Indicating member, the subframe numbers and the packet that are used for transmitting through network side signaling indicating user terminal preceding two packets arrive the cycle;
The Dispatching Unit of PDCCH is used for frequency location and Modulation and Coding Scheme MCS through the dispatch distribution persistent scheduling resource of physical layer descending control channel PDCCH.
A kind of base station that the embodiment of the invention provides; Said base station is used for transmission time characteristic and the retransmission time interval according to business data packet; For the initial transmission of user terminal current data packet is distributed persistent scheduling resource; Make configuration not overlap for the resource of current data packet initial transmission to the resource that previous packet retransmits with configuration, the transmission time characteristic of said business data packet comprises the Transmission Time Interval and the packet size of business data packet; And, the zero-time and the cycle of said persistent scheduling resource sent to said user terminal, comprising:
The assignment period unit is used for distributing a persistent scheduling resource cycle through the network side signaling;
Odd number packet scheduling unit is used for through the dispatch of physical layer descending control channel PDCCH first packet being dispatched, and in dividing frequency resource location and Modulation and Coding Scheme MCS, confirms the initial moment of odd number bag;
Even number packet scheduling unit is used for the base station and through the dispatch of PDCCH second packet is dispatched, and in dividing frequency resource location and MCS, confirms the initial moment of even number bag.
A kind of user terminal that the embodiment of the invention provides comprises:
Confirm initial subframe unit, the indication of the dispatch of the physical layer descending control channel PDCCH that is used for sending according to the base station obtains the initial subframe of persistent scheduling resource;
Confirm periodic unit, be used for confirming the cycle of said persistent scheduling resource according to said initial subframe and said corresponding relation.
A kind of user terminal that the embodiment of the invention provides comprises:
Confirm preceding two data steamed stuffed bun frame number unit; The indication of the dispatch of the physical layer descending control channel PDCCH that is used for sending according to the base station; Obtain transmitting the subframe numbers of first packet in said preceding two packets, and, confirm the subframe numbers of second packet of transmission according to this subframe numbers;
Confirm periodic unit, be used for subframe numbers, and said packet arrives the cycle, confirm the cycle of persistent scheduling resource according to transmission said first packet and second packet.
A kind of user terminal that the embodiment of the invention provides comprises:
Receiving element is used to receive the network side signaling of base station transmission and the dispatch of physical layer descending control channel PDCCH;
Persistent scheduling resource information is confirmed the unit, is used for the persistent scheduling resource cycle according to said network side signaling indication, and the odd number bag of the dispatch of said PDCCH indication and the initial moment of even number bag, confirms persistent scheduling resource information.
This user terminal also comprises:
Transmitting element is used for according to said persistent scheduling resource information, and is from the initial moment of said odd number bag, every at a distance from said persistent scheduling resource cycle transmission odd number bag; And,, every at a distance from said persistent scheduling resource cycle transmission even number bag from the initial moment of said even number bag.
The embodiment of the invention is that user terminal distributes persistent scheduling resource through network side, and, the zero-time and cycle of said persistent scheduling resource sent to said user terminal; Said user terminal obtains the persistent scheduling resource that said network side distributes through the zero-time and the cycle of said persistent scheduling resource, thereby has realized the distribution of multicycle persistent scheduling resource.
Description of drawings
Fig. 1 is a VoIP traffic transmission model sketch map in the prior art;
Fig. 2 is a LTE tdd frame structural representation of the prior art;
Fig. 3 is the persistent scheduling resource cycle configuration schematic diagram to the initial subframe of different continuous dispatching;
The overall procedure sketch map of the distribution method of a kind of persistent scheduling resource that Fig. 4 provides for the embodiment of the invention;
The idiographic flow sketch map of the distribution method of a kind of persistent scheduling resource that Fig. 5 provides for the embodiment of the invention;
The idiographic flow sketch map of the distribution method of a kind of persistent scheduling resource that Fig. 6 provides for the embodiment of the invention;
Fig. 7 distributes sketch map for the persistent scheduling resource that the embodiment of the invention provides;
The idiographic flow sketch map of the distribution method of a kind of persistent scheduling resource that Fig. 8 provides for the embodiment of the invention;
The general structure sketch map of the distribution system of a kind of persistent scheduling resource that Fig. 9 provides for the embodiment of the invention;
The concrete structure sketch map of the distribution system of a kind of persistent scheduling resource that Figure 10 provides for the embodiment of the invention;
The concrete structure sketch map of the distribution system of a kind of persistent scheduling resource that Figure 11 provides for the embodiment of the invention;
The concrete structure sketch map of the distribution system of a kind of persistent scheduling resource that Figure 12 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention is continued to use the conclusion of LTE; By the cycle of network side signaling distributing sustainable scheduling; The frequency location of PDCCH distribution persistent scheduling resource and MCS etc.; But two characteristics to the multicycle continuous dispatching have been carried out refinement, and a kind of distribution method and system of persistent scheduling resource is provided, in order to realize the distribution of multicycle persistent scheduling resource.
In the embodiment of the invention, two characteristics of multicycle continuous dispatching comprise: a plurality of continuous dispatching cycles are arranged; The subframe that the concrete numerical value in continuous dispatching cycle and subframe transfer point and initial transmission take place has corresponding relation.
The ascending-descending subframes transfer point cycle of LTE TDD and transfer point are configured in the system broadcasts to be confirmed, promptly before distributing persistent scheduling resource, has just decided, and can in the continuous dispatching process, not change.Under some subframe transfer point configuration, RTT=10ms and two kinds of subframes of 15ms possibly occur, some transfer point configuration has only the subframe of RTT=10ms down.Therefore, the embodiment of the invention only needs to consider that the subframe numbers and the corresponding relation in continuous dispatching cycle get final product in the distribution of persistent scheduling resource.
At first; In order on the basis that does not reduce systematic function, to avoid predefine resource and the generation that retransmits resource contention; The embodiment of the invention is introduced the scheme of multicycle continuous dispatching; According to the transmission time characteristic and the retransmission time interval of business data packet, be the initial transmission resource allocation of current data packet, make configuration not overlap for the resource of current data packet initial transmission to the resource that previous packet retransmits with configuration.For example, the voice voice packets is distributed the two kinds of cycle that replaces each other: T1, T2, wherein; T1=20+delta; T2=20-delta, the predefine resource cycle is T1, T2, T1, T2......, like this; When the RTT of 10ms, the predefine initial transmission can obtain fine solution with the problem that re-transmission conflicts.
Wherein, the transmission time characteristic of said business data packet comprises: the Transmission Time Interval of packet and packet size.The Transmission Time Interval of packet is the basic foundation in the Resources allocation time interval, and the packet size has then determined the quantity of Resources allocation.In the synchronous HARQ transmission, the retransmission time interval of business data packet is identical, and this time interval is RTT.RTT is a fixed value by sending and receiving end processing delay and frame structure decision, can not arbitrarily change.
In LTE time division duplex (TDD) system, corresponding different ascending-descending subframes configurations has 10ms, two kinds of RTT configurations of 15ms with different subframes.Frame structure referring to LTE TDD shown in Figure 2; LTE TDD can have 5ms and two kinds of subframe transfer point cycle configurations of 10ms, under every kind of cycle, different subframe transfer point configurations might be arranged; Every kind of corresponding different ascending-descending subframes of configuration distributes; Correspondingly, under every kind of subframe transfer point configuring condition, different sub-frame of uplink has different RTT.For example, in the 5ms transfer point cycle, (UL: DL=3: in the time of 1), subframe 0 was a descending sub frame, and subframe 2～4 is a sub-frame of uplink, the RTT=10ms of sub-frame of uplink 2,4, the RTT=15ms of sub-frame of uplink 3 after the ascending-descending subframes transfer point was positioned at subframe 4.
To above-mentioned ascending-descending subframes transfer point configuration and corresponding RTT value; It is that the voice packets initial transmission that is positioned at subframe 2,4 is distributed 22ms (being 20+2) and two kinds of persistent scheduling resource cycles of 18ms (being 20-2) that VoIP voice packets initial transmission is distributed a kind of possible scheme of persistent scheduling resource; Two kinds of cycles alternately occur, and the voice packets initial transmission of subframe 3 are distributed the cycle of 20ms.As shown in Figure 3, the persistent scheduling resource assignment period is divided into and is following three kinds of situation:
Situation one: if the initial subframe of persistent scheduling resource is a subframe 2; Its cycle is configured to 22ms, 18ms, 22ms, 18ms......; It is the subframe 2 that first voice packets initial transmission occurs in field 0; The initial transmission that second voice packets initial transmission occurs in 4, the three voice packets of subframe of field 4 occurs in the subframe 2 of frame 8, and the rest may be inferred.
Situation two: if the initial subframe of persistent scheduling resource is a subframe 3, its cycle is configured to 20ms, and each promptly later voice packets initial transmission all occurs in subframe 3.
Situation three: if the initial subframe of persistent scheduling resource is a subframe 4, its cycle is configured to 18ms, 22ms, 18ms, 22ms.......
Based on above-mentioned multicycle persistent scheduling resource configuration; The allocative decision that needs careful design persistent scheduling resource is to guarantee the realization of multicycle continuous dispatching, so; Referring to Fig. 4, the distribution method of a kind of persistent scheduling resource that the embodiment of the invention provides totally comprises step:
S401, network side are that user terminal distributes persistent scheduling resource, and, the zero-time and cycle of said persistent scheduling resource sent to said user terminal.
S402, said user terminal obtain the persistent scheduling resource that said network side distributes through the zero-time and the cycle of said persistent scheduling resource.
Below introduce three kinds of concrete grammars of realizing the multicycle continuous dispatching that the embodiment of the invention provides respectively.
Method one:
By the network side signaling indication continuous dispatching initial subframe number and the detailed corresponding relation in continuous dispatching cycle, indicated the information such as frequency location and MCS of persistent scheduling resource before the cycle in the entering continuous dispatching by the dispatch of a PDCCH.
Still with the 5ms ascending-descending subframes change-over period, UL: DL=3: 1, it is the example explanation that the VoIP voice packets is carried out continuous dispatching.The three cover persistent scheduling resource cycles of network side signaling configuration are as shown in table 1:
| Sequence number | Subframe numbers | Cycle (ms) |
| 1 | |
22,18 alternately |
| 2 | |
20 |
| 3 | |
18,22 alternately |
Table 1
Referring to Fig. 5, the distribution method of a kind of persistent scheduling resource that the embodiment of the invention provides comprises step:
S501, base station are through the cycle of network side signaling indicating user terminal persistent scheduling resource and the corresponding relation of the initial frame number of persistent scheduling resource, comprising the situation in an initial frame number multiple cycle of correspondence.
The frequency location and the MCS of persistent scheduling resource are distributed through the dispatch of PDCCH in S502, base station, have confirmed the original position of persistent scheduling resource, i.e. initial frame number this moment.
So far, the base station is accomplished and is shared out the work.
S503, user terminal are according to the position (being the initial frame number of persistent scheduling resource) of first persistent scheduling resource bag of the dispatch scheduling of PDCCH; Search the cycle configuration of corresponding persistent scheduling resource in the various corresponding relations of from the network side signaling, informing, confirm the cycle of persistent scheduling resource.
So far, user terminal is confirmed all information of persistent scheduling resource.
Method two:
Distribute the subframe numbers of preceding two data packet transmission of continuous dispatching to arrive cycle two amounts through the network side signaling, indicated the information such as frequency location and MCS of persistent scheduling resource before the cycle in the entering continuous dispatching by the dispatch of a PDCCH with packet.
Still with the 5ms ascending-descending subframes change-over period, UL: DL=3: 1, VoIP voice packets (the packet arrival cycle is 20ms) is carried out the explanation of continuous dispatching example, the three cover persistent scheduling resource cycles of network side signaling configuration are as shown in table 2:
| Sequence number | Subframe numbers | Cycle T (ms) |
| 1 | |
20 |
| 2 | |
20 |
| 3 | |
20 |
Table 2
Referring to Fig. 6, the distribution method of a kind of persistent scheduling resource that the embodiment of the invention provides comprises step:
S601, base station indicate the subframe numbers of preceding two data packet transmission and packet to arrive cycle T, T=20 as shown in table 2 through the network side signaling.
The frequency location and the MCS form of persistent scheduling resource distributed in S602, base station through the dispatch of PDCCH; The original position of persistent scheduling resource, the transmission location (promptly transmitting the subframe position of this packet) of first packet in just said two packets have been confirmed this moment.
S603, user terminal are through the transmission location of first persistent scheduling resource bag (being first packet in said two packets) of the dispatch indication of PDCCH; Subframe and packet with corresponding second packet generation of said first packet according to the indication of network side signaling arrive cycle T; Confirm the subframe that second packet takes place, i.e. transmission location accurately.
Wherein, The field of second packet generation is confirmed by cycle T, and the concrete delivery time of second packet is first data packet transmission field T/5 field afterwards; In last example; T=20ms, first packet occur in the subframe 2 of field 0, and then second packet occurs in the subframe 3 of field 4.
First and second packet delivery plan that S604, user terminal will be confirmed is done as a whole, according to first and second data package transmission position, confirms that the persistent scheduling resource cycle is 2*T, and promptly there is identical persistent scheduling resource configuration every time at a distance from 2*T.
So far accomplish the distribution of persistent scheduling resource.
Method three:
The network side signaling is only distributed a kind of cycle: 2
*Packet arrives the cycle, confirms that by the dispatch of two PDCCH odd number bag and even number bag two overlap the original position of persistent scheduling resource, finally accomplish the distribution of persistent scheduling resource in dividing frequency position and MCS respectively.Wherein, being spaced apart of the initial resource of two dispatch scheduling: packet arrives cycle+deviate.
Strange, the even data bag that persistent scheduling resource cycle and two the physical layer dispatch of user terminal through the network side signaled confirmed sends the start cycle of resource, determines complete persistent scheduling resource information.
The periodicity of multicycle persistent scheduling resource is T1, T2, T1, T2......, or single packet arrives cycle, wherein T1+T2=2
*Packet arrives the cycle.Distribute twice persistent scheduling resource regarding as odd number bag and even number bag to distribute complete persistent scheduling resource, then the cycle between the odd number bag is 2
*Packet arrives the cycle, and the cycle between the even number bag also is 2
*Packet arrives the cycle.The persistent scheduling resource that single packet is arrived the cycle also can be thought like this.
Still with the 5ms ascending-descending subframes change-over period, UL: DL=3: 1, VoIP voice packets (the packet arrival cycle is 20ms) is carried out the explanation of continuous dispatching example, Fig. 7 be the assigning process sketch map to the persistent scheduling resource that begins from subframe 2.
Referring to Fig. 8, the distribution method of a kind of persistent scheduling resource that the embodiment of the invention provides comprises step:
A kind of persistent scheduling resource cycle is confirmed through the network side signaling in S801, base station: the T=2* packet arrives the cycle, is that this distribution with the monocycle persistent scheduling resource of 40ms is consistent in the last example.
Dispatch first packet through the dispatch (being called odd number packet scheduling signaling) of PDCCH S802, base station, when confirming frequency resource position and MCS, confirms the zero hour of odd number bag.
Dispatch second packet through the dispatch (being called even number packet scheduling signaling) of PDCCH S803, base station, when confirming frequency resource position and MCS, confirms the zero hour of even number bag.
S804, user terminal send the odd number bag according to the frequency resource and the per interval T of MCS form (going up in the example is 40ms) of the indication of odd number packet scheduling signaling; Frequency resource and the per interval T of MCS form (going up in the example is 40ms) according to the indication of even number packet scheduling signaling send the even number bag.
Being spaced apart of even number packet scheduling signaling and odd number packet scheduling signaling: packet arrives cycle ± delta, and the concrete numerical value of delta is by the cycle configuration decision of multicycle continuous dispatching.
In addition, the method that provides of the embodiment of the invention also is applicable to following two kinds of situation:
It is not the distribution of other multicycle persistent scheduling resource of 20ms that packet arrives the cycle;
Period does
Situation, the scheme that this moment method three provides is more suitable, network side configuration cycle is: 2K
*Packet arrives the cycle, and the PDCCH number that needs is 2K.
Referring to Fig. 9, the distribution system of a kind of persistent scheduling resource that the embodiment of the invention provides totally comprises: base station 91 and user terminal 92.
Said base station 91 is used to said user terminal 92 and distributes persistent scheduling resource, and, the zero-time and cycle of said persistent scheduling resource sent to said user terminal 92.
Said user terminal 92 is used for zero-time and cycle through said persistent scheduling resource, obtains the persistent scheduling resource that said network side distributes.
Preferably, referring to Figure 10, the distribution system of a kind of persistent scheduling resource that the embodiment of the invention provides comprises: base station 101 and user terminal 102.
Said base station 101 comprises:
Indicating member 1011 is used for indicating the cycle of said user terminal 102 said persistent scheduling resource and the corresponding relation of the initial subframe of continuous dispatching through the network side signaling.
The Dispatching Unit 1012 of PDCCH is used for frequency location and Modulation and Coding Scheme MCS through the dispatch distribution persistent scheduling resource of physical layer descending control channel PDCCH.
Said user terminal 102 comprises:
Confirm initial subframe unit 1021, be used for indication, obtain the initial subframe of continuous dispatching according to the dispatch of said PDCCH.
Confirm periodic unit 1022, be used for confirming the cycle of said persistent scheduling resource according to said initial subframe and said corresponding relation.
Preferably, referring to Figure 11, the distribution system of a kind of persistent scheduling resource that the embodiment of the invention provides comprises: base station 111 and user terminal 112.
Said base station 111 comprises:
Indicating member 1111 is used for indicating the subframe numbers and the packet of preceding two packets of said user terminal 112 transmission to arrive the cycle through the network side signaling.
The Dispatching Unit 1112 of PDCCH is used for frequency location and Modulation and Coding Scheme MCS through the dispatch distribution persistent scheduling resource of physical layer descending control channel PDCCH.
Said user terminal 112 comprises:
Confirm preceding two data steamed stuffed bun frame number unit 1121, be used for indication, obtain transmitting the subframe numbers of first packet in said preceding two packets, and, confirm the subframe numbers of second packet of transmission according to this subframe numbers according to the dispatch of said PDCCH.
Confirm periodic unit 1122, be used for subframe numbers, and said packet arrives the cycle, confirm the cycle of said persistent scheduling resource according to transmission said first packet and second packet.
Preferably, referring to Figure 12, the distribution system of a kind of persistent scheduling resource that the embodiment of the invention provides comprises: base station 121 and user terminal 122.
Said base station 121 comprises:
Odd number packet scheduling unit 1212 is used for through the dispatch of physical layer descending control channel PDCCH first packet being dispatched, and in dividing frequency resource location and Modulation and Coding Scheme MCS, confirms the initial moment of odd number bag.
Even number packet scheduling unit 1213 is used for the base station and through the dispatch of PDCCH second packet is dispatched, and in dividing frequency resource location and MCS, confirms the initial moment of even number bag.
Said user terminal 122 comprises:
Receiving element 1221 is used to receive the network side signaling of said base station transmission and the dispatch of PDCCH.
Persistent scheduling resource information is confirmed unit 1222, is used for the persistent scheduling resource cycle according to said network side signaling indication, and the odd number bag of the dispatch of said PDCCH indication and the initial moment of even number bag, confirms persistent scheduling resource information.
Transmitting element 1223 is used for according to said persistent scheduling resource information, and is from the initial moment of said odd number bag, every at a distance from said persistent scheduling resource cycle transmission odd number bag; And,, every at a distance from said persistent scheduling resource cycle transmission even number bag from the initial moment of said even number bag.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (19)
1. the distribution method of a persistent scheduling resource is characterized in that, this method comprises:
Network side is according to the transmission time characteristic and the retransmission time interval of business data packet; For the initial transmission of user terminal current data packet is distributed persistent scheduling resource; Make configuration not overlap for the resource of current data packet initial transmission to the resource that previous packet retransmits with configuration, the transmission time characteristic of said business data packet comprises the Transmission Time Interval and the packet size of business data packet; And, the zero-time and the cycle of said persistent scheduling resource sent to said user terminal;
Said user terminal obtains the persistent scheduling resource that said network side distributes through the zero-time and the cycle of said persistent scheduling resource.
2. method according to claim 1 is characterized in that, the step that said network side sends to said user terminal with the zero-time of said persistent scheduling resource and cycle comprises:
The corresponding relation of initial subframe of cycle and the persistent scheduling resource of the said persistent scheduling resource of said user terminal is indicated in the base station through the network side signaling;
The frequency location and the Modulation and Coding Scheme MCS of persistent scheduling resource distributed in said base station through the dispatch of physical layer descending control channel PDCCH.
3. method according to claim 2 is characterized in that, said user terminal is through the zero-time and the cycle of said persistent scheduling resource, and the step that obtains the persistent scheduling resource of said network side distribution comprises:
Said user terminal obtains the initial subframe of persistent scheduling resource according to the indication of the dispatch of said PDCCH, and according to this initial subframe and said corresponding relation, confirms the cycle of said persistent scheduling resource.
4. method according to claim 1 is characterized in that, the step that said network side sends to said user terminal with the zero-time of said persistent scheduling resource and cycle comprises:
The base station indicates subframe numbers and the packet that said user terminal transmits preceding two packets to arrive the cycle through the network side signaling;
The frequency location and the Modulation and Coding Scheme MCS of persistent scheduling resource distributed in the base station through the dispatch of physical layer descending control channel PDCCH.
5. method according to claim 4 is characterized in that, said user terminal is through the zero-time and the cycle of said persistent scheduling resource, and the step that obtains the persistent scheduling resource of said network side distribution comprises:
Said user terminal obtains transmitting the subframe numbers of first packet in said preceding two packets according to the indication of the dispatch of said PDCCH, and according to the subframe numbers of this first packet, confirms the subframe numbers of second packet of transmission;
Said user terminal is according to the subframe numbers of said first packet of transmission and second packet, and the said packet arrival cycle, confirms the cycle of said persistent scheduling resource.
6. method according to claim 1 is characterized in that, the step that said network side sends to said user terminal with the zero-time of said persistent scheduling resource and cycle comprises:
A persistent scheduling resource cycle is distributed through the network side signaling in the base station;
Dispatch first packet through the dispatch of physical layer descending control channel PDCCH the base station, in dividing frequency resource location and Modulation and Coding Scheme MCS, confirms the initial moment of odd number bag;
Dispatch second packet through the dispatch of PDCCH the base station, in dividing frequency resource location and MCS, confirms the initial moment of even number bag.
7. method according to claim 6 is characterized in that, said user terminal is through the zero-time and the cycle of said persistent scheduling resource, and the step that obtains the persistent scheduling resource of said network side distribution comprises:
Said user terminal is according to the said persistent scheduling resource cycle, and the initial moment of said odd number bag and even number bag, confirms persistent scheduling resource information.
8. method according to claim 7 is characterized in that, this method also comprises:
Said user terminal is according to the initial moment of said odd number bag, and is every at a distance from said persistent scheduling resource cycle transmission odd number bag; And,, every at a distance from said persistent scheduling resource cycle transmission even number bag according to the initial moment of said even number bag.
9. the distribution system of a persistent scheduling resource is characterized in that, this system comprises: base station and user terminal;
Said base station; Be used for transmission time characteristic and retransmission time interval according to business data packet; For the initial transmission of said user terminal current data packet is distributed persistent scheduling resource; Make configuration not overlap for the resource of current data packet initial transmission to the resource that previous packet retransmits with configuration, the transmission time characteristic of said business data packet comprises the Transmission Time Interval and the packet size of business data packet; And, the zero-time and the cycle of said persistent scheduling resource sent to said user terminal;
Said user terminal is used for zero-time and cycle through said persistent scheduling resource, obtains the persistent scheduling resource of said base station assigns.
10. system according to claim 9 is characterized in that, said base station comprises:
Indicating member is used for indicating through the network side signaling corresponding relation of initial subframe of cycle and the persistent scheduling resource of the said persistent scheduling resource of said user terminal;
The Dispatching Unit of PDCCH is used for frequency location and Modulation and Coding Scheme MCS through the dispatch distribution persistent scheduling resource of physical layer descending control channel PDCCH.
11. system according to claim 10 is characterized in that, said user terminal comprises:
Confirm initial subframe unit, be used for indication, obtain the initial subframe of persistent scheduling resource according to the dispatch of said PDCCH;
Confirm periodic unit, be used for confirming the cycle of said persistent scheduling resource according to said initial subframe and said corresponding relation.
12. system according to claim 9 is characterized in that, said base station comprises:
Indicating member is used for indicating subframe numbers and the packet that said user terminal transmits preceding two packets to arrive the cycle through the network side signaling;
The Dispatching Unit of PDCCH is used for frequency location and Modulation and Coding Scheme MCS through the dispatch distribution persistent scheduling resource of physical layer descending control channel PDCCH.
13. system according to claim 12 is characterized in that, said user terminal comprises:
Confirm preceding two data steamed stuffed bun frame number unit; Be used for indication according to the dispatch of said PDCCH; Obtain transmitting the subframe numbers of first packet in said preceding two packets, and, confirm the subframe numbers of second packet of transmission according to the subframe numbers of this first packet;
Confirm periodic unit, be used for subframe numbers, and said packet arrives the cycle, confirm the cycle of said persistent scheduling resource according to transmission said first packet and second packet.
14. system according to claim 9 is characterized in that, said base station comprises:
The assignment period unit is used for distributing a persistent scheduling resource cycle through the network side signaling;
Odd number packet scheduling unit is used for through the dispatch of physical layer descending control channel PDCCH first packet being dispatched, and in dividing frequency resource location and Modulation and Coding Scheme MCS, confirms the initial moment of odd number bag;
Even number packet scheduling unit is used for the base station and through the dispatch of PDCCH second packet is dispatched, and in dividing frequency resource location and MCS, confirms the initial moment of even number bag.
15. system according to claim 14 is characterized in that, said user terminal comprises:
Receiving element is used to receive the network side signaling of said base station transmission and the dispatch of PDCCH;
Persistent scheduling resource information is confirmed the unit, is used for the persistent scheduling resource cycle according to said network side signaling indication, and the odd number bag of the dispatch of said PDCCH indication and the initial moment of even number bag, confirms persistent scheduling resource information.
16. system according to claim 15 is characterized in that, said user terminal also comprises:
Transmitting element is used for according to said persistent scheduling resource information, and is from the initial moment of said odd number bag, every at a distance from said persistent scheduling resource cycle transmission odd number bag; And,, every at a distance from said persistent scheduling resource cycle transmission even number bag from the initial moment of said even number bag.
17. base station; It is characterized in that; Said base station is used for transmission time characteristic and the retransmission time interval according to business data packet; Distribute persistent scheduling resource for the initial transmission of user terminal current data packet, make configuration not overlap for the resource of current data packet initial transmission to the resource that previous packet retransmits with configuration, the transmission time characteristic of said business data packet comprises the Transmission Time Interval and the packet size of business data packet; And, the zero-time and the cycle of said persistent scheduling resource sent to said user terminal, this base station comprises:
Indicating member is used for the corresponding relation of the initial subframe of cycle and persistent scheduling resource through network side signaling indicating user terminal persistent scheduling resource;
The Dispatching Unit of PDCCH is used for frequency location and Modulation and Coding Scheme MCS through the dispatch distribution persistent scheduling resource of physical layer descending control channel PDCCH.
18. base station; It is characterized in that; Said base station is used for transmission time characteristic and the retransmission time interval according to business data packet; Distribute persistent scheduling resource for the initial transmission of user terminal current data packet, make configuration not overlap for the resource of current data packet initial transmission to the resource that previous packet retransmits with configuration, the transmission time characteristic of said business data packet comprises the Transmission Time Interval and the packet size of business data packet; And, the zero-time and the cycle of said persistent scheduling resource sent to said user terminal, this base station comprises:
Indicating member, the subframe numbers and the packet that are used for transmitting through network side signaling indicating user terminal preceding two packets arrive the cycle;
The Dispatching Unit of PDCCH is used for frequency location and Modulation and Coding Scheme MCS through the dispatch distribution persistent scheduling resource of physical layer descending control channel PDCCH.
19. base station; It is characterized in that; Said base station is used for transmission time characteristic and the retransmission time interval according to business data packet; Distribute persistent scheduling resource for the initial transmission of user terminal current data packet, make configuration not overlap for the resource of current data packet initial transmission to the resource that previous packet retransmits with configuration, the transmission time characteristic of said business data packet comprises the Transmission Time Interval and the packet size of business data packet; And, the zero-time and the cycle of said persistent scheduling resource sent to said user terminal, this base station comprises:
The assignment period unit is used for distributing a persistent scheduling resource cycle through the network side signaling;
Odd number packet scheduling unit is used for through the dispatch of physical layer descending control channel PDCCH first packet being dispatched, and in dividing frequency resource location and Modulation and Coding Scheme MCS, confirms the initial moment of odd number bag;
Even number packet scheduling unit is used for the base station and through the dispatch of PDCCH second packet is dispatched, and in dividing frequency resource location and MCS, confirms the initial moment of even number bag.
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| CN101997658B (en) * | 2009-08-13 | 2013-08-07 | 电信科学技术研究院 | Feedback instruction method, system and device |
| CN101998634B (en) * | 2009-08-13 | 2013-10-16 | 电信科学技术研究院 | Method, system and equipment for transmitting periodical feedback information |
| CN102315921B (en) * | 2010-07-09 | 2014-08-20 | 华为技术有限公司 | Method and module for determining retransmission resource allocation (RA), base station and relay node |
| CN102573073B (en) * | 2011-01-04 | 2015-01-28 | 中兴通讯股份有限公司 | Resource allocation method and system for physical layer of terminal |
| CN103687029A (en) * | 2013-12-30 | 2014-03-26 | 大唐移动通信设备有限公司 | Resource allocation method and base station |
| KR101913681B1 (en) | 2014-05-27 | 2018-10-31 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Data transmission method, device and system |
| CN107105502B (en) * | 2016-02-19 | 2019-12-13 | 电信科学技术研究院 | Method and device for allocating persistent scheduling resources and transmitting data by using persistent scheduling resources |
| CN107295643B (en) * | 2016-03-30 | 2019-12-13 | 电信科学技术研究院 | Scheduling method, device and equipment |
| CN112188625A (en) * | 2016-08-11 | 2021-01-05 | 华为技术有限公司 | Information transmission method, base station and user equipment |
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