CN103369675B - A kind of resource allocation method and device - Google Patents
A kind of resource allocation method and device Download PDFInfo
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- CN103369675B CN103369675B CN201210098365.3A CN201210098365A CN103369675B CN 103369675 B CN103369675 B CN 103369675B CN 201210098365 A CN201210098365 A CN 201210098365A CN 103369675 B CN103369675 B CN 103369675B
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- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
The embodiment of the invention discloses a kind of resource allocation method and device, the method comprises: by distributed Resource Allocation Formula, can be used in the Physical Resource Block transmitting the Physical Downlink Control Channel E-PDCCH strengthened in units of Resource Block group RBG in allocating cell; Be configured for the virtual resource blocks of corresponding E-PDCCH transmission according to the Physical Resource Block of described configuration, and in described community, carry out E-PDCCH transmission according to the virtual resource blocks of configuration and the Physical Resource Block of described configuration.Adopt the present invention, cause when can reduce E-PDCCH Resourse Distribute and the scheduling of PDSCH Resourse Distribute is limited, improve allocation efficiency of resource.
Description
Technical field
The present invention relates to field of wireless communication, particularly relate to a kind of resource allocation method and device.
Background technology
At Long Term Evolution (LongTermEvolution, LTE) the senior evolution (LTE-advanced of/LTE, LTE-A) in system, downlink multi-access access way adopts orthogonal frequency division multiple access (OrthogonalFrequencyDivisionMultipleAccess, OFDMA) mode usually.The downlink resource of system has been divided into orthogonal frequency division multiplexing multiple access (OrthogonalFrequencyDivisionMultiple, OFDM) symbol from the time, has been divided into subcarrier from frequency.
In LTE communication system, a normal descending sub frame, can include two time slots (slot), each time slot has 7 OFDM symbol.And defining the size of Resource Block (ResourceBlock, RB), a RB comprises 12 subcarriers on frequency domain, time domain is half subframe duration (time slot), namely comprises 7 or 6 OFDM symbol.Certain subcarrier in certain OFDM symbol is called resource element (ResourceElement, RE), and therefore a RB comprises 84 or 72 RE.In a subframe, a pair RB of two time slots is referred to as Resource Block pair, and namely RB is to (RBpair).
The various data that subframe carries on the physical time-frequency resource of subframe, mark off various physical channel carry out organising map.Various physical channel can be divided into two classes substantially: control channel and Traffic Channel.Correspondingly, the data of control channel carrying can be described as control data (or control information), and the data of Traffic Channel carrying can be described as business datum.Wherein, the basic goal of communication is service data transmission, and the effect of control channel is the transmission in order to supplementary services data, so the resource that the design of a communication system preferably makes control channel take is as far as possible few.
Physical Downlink Control Channel (PhysicalDownlinkControlChannel, PDCCH) is then the one of control channel.In LTE system, transmit PDCCH based on MIMO precoding mode, this PDCCH can carry out demodulation based on UE specific reference signals, is called the PDCCH (EnhancedPDCCH, E-PDCCH) of enhancing.E-PDCCH is the control area of n symbol but the region of the transmitting downlink data in this subframe before a subframe not, and with Physical Downlink Shared Channel (PhysicalDownlinkSharedChannel, PDSCH) be frequency division, namely take different RB from PDSCH.
In existing relay system, relaying PDCCH (RelayPDCCH, R-PDCCH) resource distribution mode is the Type0 (type 0) continuing to use PDSCH, the resource distribution mode of Type1 (Class1) and Type2 (type 2).Wherein, the Resourse Distribute of type 0 is is unit Resources allocation with Resource Block group (ResourceBlockGroup, RBG); The Resourse Distribute of Class1 be by the mode of bit map (bitmap) by RB in units of carry out Resourse Distribute; The Resourse Distribute of type 2 is that continuous resource distributes.
Wherein, the resource distribution mode of type 2 is also divided into centralized Resourse Distribute (Localizedresourceallocation) and distributed Resourse Distribute (Distributedresourceallocation).In the distributed resource allocation of type 2, when a VRB is mapped to PRB, the position of the PRB that VRB is mapped on two time slots is different.Namely distributed Resource Allocation Formula is different in the frequency domain resource that two time slots use, and can obtain the diversity gain of frequency.When the Resourse Distribute of type 2, there is virtual resource blocks (VirtualRB, VRB) to the mapping of Physical Resource Block (PhysicalRB, PRB).When being centralized Resourse Distribute, the numbering of VRB is exactly the numbering of PRB; When being the distributed resource allocation of type 2, distribution be VRB, be mapped to PRB by certain rule and get on.
Whether the Resourse Distribute of PDSCH type 0 for unit, uses the mode of bitmap to indicate this resource to be assigned with Resource Block group (ResourceBlockGroup, RBG).The centralised allocation of type 2 distributes continuous print RB to PDSCH.
But, if directly continue to use the distributed Resource Allocation Formula of type 2 in prior art to carry out the Resourse Distribute of E-PDCCH, then can limit the type 2 of PDSCH and the scheduling of type 0.That is, when the Resourse Distribute of E-PDCCH having type 2, and the Resourse Distribute of PDSCH is had again to be the centralized resources of type 0 or type 2 when distributing, can be restricted to the scheduling of PDSCH.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, provides a kind of resource allocation method and device.When can alleviate E-PDCCH Resourse Distribute, the scheduling of PDSCH Resourse Distribute is limited, improve allocation efficiency of resource.
In order to solve the problems of the technologies described above, embodiments provide a kind of resource allocation method, comprising:
By distributed Resource Allocation Formula, in units of Resource Block group RBG, in allocating cell, can be used in the Physical Resource Block transmitting the Physical Downlink Control Channel E-PDCCH strengthened;
Be configured for the virtual resource blocks of corresponding E-PDCCH transmission according to the Physical Resource Block of described configuration, and in described community, carry out E-PDCCH transmission according to the virtual resource blocks of configuration and the Physical Resource Block of described configuration.
On the other hand, the embodiment of the present invention additionally provides a kind of device for allocating resources, comprising:
Physical block dispensing unit, for by distributed Resource Allocation Formula, can be used in the Physical Resource Block transmitting the Physical Downlink Control Channel E-PDCCH strengthened in units of Resource Block group RBG in allocating cell;
Dummy block will dispensing unit, for being configured for the virtual resource blocks that corresponding E-PDCCH transmits according to the Physical Resource Block of described configuration;
Transmission unit, for carrying out E-PDCCH transmission according to the virtual resource blocks of configuration and the Physical Resource Block of described configuration in described community.
Again on the one hand, the embodiment of the present invention also comprises a kind of base station, comprises above-mentioned device for allocating resources.
Implement the embodiment of the present invention, there is following beneficial effect:
When for E-PDCCH Resources allocation, by distributed Resource Allocation Formula, configure in units of Resource Block group allowing the Physical Resource Block of transmission E-PDCCH, the Physical Resource Block avoiding transmission E-PDCCH, to the restriction of the PDSCH scheduling of type 2 and type 0, realizes the reasonable distribution of data-signal and control signal transmission.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the mapping relations of PRB and VRB in existing Resourse Distribute;
Fig. 2 is an idiographic flow schematic diagram of the resource allocation method in the embodiment of the present invention;
Fig. 3 is another idiographic flow schematic diagram of the resource allocation method in the embodiment of the present invention;
Fig. 4 is the schematic diagram by the Physical Resource Block of the method configuration in Fig. 4 in the embodiment of the present invention;
Fig. 5 is the schematic diagram by the configuration in Fig. 5, the RB allowed on the RBG of transmission E-PDCCH being re-started to numbering in the embodiment of the present invention;
Fig. 6 is the mapping relations schematic diagram of VRB and the PRB configured in the embodiment of the present invention;
Fig. 7 numbers to VRB the schematic diagram distributed in the embodiment of the present invention;
Fig. 8 carries out schematic flow sheet when E-PDCCH sends in the embodiment of the present invention;
Fig. 9 is that the pilot tone of carrying out when E-PDCCH sends at two time slots in the embodiment of the present invention sends schematic diagram;
Figure 10 is that of device for allocating resources in the embodiment of the present invention specifically forms schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, suppose VRB index number 0,1,2,3,12,13,14,15 for the transmission of E-PDCCH, then the RBG being only numbered 4 and 5 can with the Resourse Distribute of type 0; To the centralized Resourse Distribute of type 2, except the RB of PRB numbering 10 ~ 17, the RB number of maximum continuous dispensing is 2.
In the prior art, the scheduling formula that E-PDCCH uses can cause the restriction of scheduling to the scheduling of PDSCH.The embodiment of the present invention is for this point, by distributed Resource Allocation Formula, configure in units of Resource Block group allowing the Physical Resource Block of transmission E-PDCCH, the Physical Resource Block avoiding transmission E-PDCCH, to the restriction of the PDSCH scheduling of type 2 and type 0, realizes the reasonable distribution of data-signal and control signal transmission.
On the other hand, in prior art, if the distributed scheduling of E-PDCCH type of service 2, due to a VRB be mapped to PRB time, the position of the PRB that VRB is mapped on two time slots is different.If only sent out on timeslot 1 PRB pilot tone on time slot 1, the PRB pilot tone of time slot 2 is only sent out on time slot 2, because the position of two PRB is different, only has a time slot to have pilot tone, cannot do the channel interpolation between two time slots to each PRB.The embodiment of the present invention propose Resource Block on carry pilot tone simultaneously mode solve this problem, namely on certain PRB, an E-PDDCH only sends out over a slot, but pilot tone is all sent out on two time slots.Below be specifically described.
As shown in Figure 2, be the resource allocation method in the embodiment of the present invention, the method comprises the steps:
101, by distributed Resource Allocation Formula, in units of Resource Block group RBG, in allocating cell, can be used in the Physical Resource Block transmitting E-PDCCH.
In order to reduce the restriction of E-PDCCH transmission to PDSCH transmission further, in this step, can limit: the Physical Resource Block that can be used in transmitting E-PDCCH comprises the part physical Resource Block that can be used for transmitting in the Physical Resource Block of E-PDCCH.That is, the Physical Resource Block distributing to E-PDCCH is the part in all available Physical Resource Block.
In order to obtain good frequency diversity effect, can be configured to when configuring, the Physical Resource Block of configuration is uniformly distributed in system bandwidth in units of Resource Block group, and the Physical Resource Block namely configured in the frequency domain of descending sub frame is uniformly distributed in units of Resource Block group.
If descending sub frame comprises two time slots, then when carrying out Physical Resource Block configuration, the first time slot that Physical Resource Block of its configuration is included in descending sub frame for transmit E-PDCCH the first Physical Resource Block and at the second time slot of described descending sub frame for transmitting second Physical Resource Block of described E-PDCCH.
102, the virtual resource blocks of corresponding E-PDCCH transmission is configured for according to the Physical Resource Block of described configuration.
When being specifically configured, can be: the number being configured for the virtual resource blocks that corresponding E-PDCCH transmits according to the number of the Physical Resource Block of described configuration, and configure the numbering of virtual resource blocks of described transmission E-PDCCH, and the mapping relations between Resource Block in the Physical Resource Block of Resource Block in described virtual resource blocks and described configuration.
103, in described community, E-PDCCH transmission is carried out according to the virtual resource blocks of configuration and the Physical Resource Block of described configuration.If descending sub frame comprises two time slots, after carrying out Resource Block configuration in a manner described, when two time slots transmit, on the Physical Resource Block determined by described first time slot and frequency band corresponding to described first Physical Resource Block, and on the Physical Resource Block determined by described second time slot and frequency band corresponding to described second Physical Resource Block, and on the Physical Resource Block to be determined by described first time slot and frequency band corresponding to described second Physical Resource Block, and pilot tone corresponding to described E-PDCCH is transmitted on the Physical Resource Block determined by described second time slot and frequency band corresponding to described first Physical Resource Block
Two time slots Resource Block on send the performance that pilot tone that this E-PDCCH corresponding transmits can improve channel estimating simultaneously, and then improve the performance of E-PDCCH.
Wherein, described pilot tone is demodulated reference signal, described method also comprises: determine different Physical Resource Block according to the different time slot of same subframe and same frequency, described different Physical Resource Block is for transmitting the E-PDCCH of different subscriber equipmenies, described different Physical Resource Block transmits the pilot tone of corresponding described different user devices, by the pilot tone of different user devices described in different port transmission.
When for E-PDCCH Resources allocation, by distributed Resource Allocation Formula, configure in units of Resource Block group allowing the Physical Resource Block of transmission E-PDCCH, the same RBG that the quantity that can not occur to cause when carrying out the scheduling of E-PDCCH in units of RB is a lot of can not dispatch and use to the PDSCH of type 0, decreasing can not the quantity of RB of continuous dispensing, the Physical Resource Block then avoiding transmission E-PDCCH, to the restriction of the PDSCH scheduling of type 2 and type 0, realizes the reasonable distribution of data-signal and control signal transmission.
In Fig. 3 ~ Fig. 8, the exemplary concrete performance of the one describing the resource allocation method in the embodiment of the present invention, supposes that system bandwidth is 28 RB in this example, and the distribution how carrying out Resource Block in the embodiment of the present invention is described based on this.
201, be configured for the Physical Resource Block sending E-PDCCH according to distributed Resource Allocation Formula, this Physical Resource Block, in units of RBG, only has some RBG can carry out the transmission of E-PDCCH.As, be configured to only at RBG0, RBG3, RBG6 shown in Fig. 3, and RBG9 can send E-PDCCH, wherein RBG9 only has a RB, and other each RBG comprises 3 RB.And, allow the RBG sending E-PDCCH to be uniformly distributed as far as possible.Such as RBG0 and RBG3, RBG3 and RBG6, RBG6 and RBG9 is be uniformly distributed at frequency domain, is all two, interval RBG.The effect of good frequency diversity can be obtained like this.
Above-mentionedly be uniformly distributed the RBG comprising interval equal number, or the difference of quantity of the RBG comprising interval is no more than certain limit, the difference as the quantity of the RBG at interval is no more than 1.
202, according to the configuration in Fig. 4, the virtual resource blocks of configuration transmission E-PDCCH.
Concrete, can be configured as follows:
1, first re-starting numbering by the configuration in Fig. 4 to allowing the RB sent on the RBG of E-PDCCH, obtaining result as shown in Figure 5.In Figure 5, one has 10 RB may be used for E-PDCCH transmission, and according to its position on frequency domain, the index of the mark E-PDCCH of order is 0-9.Define and the same number of VRB of RB that can be used for transmitting E-PDCCH, in this example, the number of VRB is 10 simultaneously.
2) Resourse Distribute is carried out to 10 VRB, then map according to the mapping mode of VRB to PRB, obtain mapping relations as shown in Figure 6.
In figure 6, be assigned on the RB of numbering 0 of PRB in the VRB numbering 0 of time slot 0, E-PDCCH, be assigned on the RB of numbering 11 of PRB in the VRB numbering 0 of time slot 1, E-PDCCH; Be assigned on the RB of numbering 0 of PRB in the VRB numbering 1 of time slot 0, E-PDCCH, be assigned on the RB of numbering 20 of PRB in the VRB numbering 1 of time slot 1, E-PDCCH, the like.
Below describing this distributed mapping in detail is a kind of method how to obtain.Suppose that the number of the VRB of E-PDCCH is
define an E-PDCCH row-column interleaver, wherein the row-column interleaver of E-PDCCH is 4 row, and line number is defined as N
rowoK, line number is
The numbering of the VRB of E-PDCCH, in a matrix, writes by row, reads by row.Wherein, insert
the value of individual sky (null).Empty value is placed on the 2nd row and the 4th row.If N
nullvalue be even number, then the 2nd row and the 4th arrange last N
null/2the value of row emptying; If N
nullvalue be odd number, then the 2nd row and the 4th row wherein one arrange last
the value of row emptying, it is last that another arranges
the value of row emptying.Empty value is ignored during reading.As shown in Figure 7,
10 RB transmission for E-PDCCH altogether, then the line number of row-column interleaver is
last provisional capital of secondary series and the 4th row is empty value, according to writing by row, reads by row.Then the value of first time slot reading is 0,4,8,1,5,2,6,9,3,7.
For time slot 0 and time slot 1, the mapping of the first half of time slot 0 and later half exchanged, what namely obtain time slot 1 is numbered 2,6,9,3,7,0,4,8,1,5.In Fig. 6, readout is the index of the RB on E-PDDCH.Be mapped on the RB of physical resource, then as shown in Figure 4, at first time slot, allowing to send in the RB on E-PDCCH, index be 0 the corresponding physics RB of RB be numbered 0; Index be 4 the corresponding physics RB of RB be numbered 1; Index be 8 the corresponding physics RB of RB be numbered 0; Index be 1 the corresponding physics RB of RB be numbered 9; Index be 5 the corresponding physics RB of RB be numbered 10; Index be 2 the corresponding physics RB of RB be numbered 11; Index be 6 the corresponding physics RB of RB be numbered 18; Index be 9 the corresponding physics RB of RB be numbered 19; Index be 3 the corresponding physics RB of RB be numbered 20; Index be 7 the corresponding physics RB of RB be numbered 27.At the 2nd time slot, index be 2 the corresponding physics RB of RB be numbered 0; Index be 6 the corresponding physics RB of RB be numbered 1; Index be 9 the corresponding physics RB of RB be numbered 2; Index be 3 the corresponding physics RB of RB be numbered 9; Index be 7 the corresponding physics RB of RB be numbered 10; Index be 0 the corresponding physics RB of RB be numbered 11; Index be 4 the corresponding physics RB of RB be numbered 18; Index be 8 the corresponding physics RB of RB be numbered 19; Index be 1 the corresponding physics RB of RB be numbered 20; Index be 5 the corresponding physics RB of RB be numbered 27.
After being configured in the manner described above, when carrying out E-PDCCH and sending, as shown in Figure 8, then comprise the steps:
301, base station is by static configuration, and semi-static configuration or Dynamic Configuration determine the search volume of its E-PDCCH of UE.Wherein, configurable further to the VRB of this UE in the VRB that to be community, UE place configure by preceding method of this search volume.
302, the VRB configured in the search volume by the above-mentioned UE determined carries out the E-PDDCH transmission of UE.
Wherein, E-PDCCH can send at two time slots.Two time slots can there is the time slot saltus step (frequencydomainslothopping) of frequency domain.Namely, on two time slots, E-PDCCH is sent in different frequency domain resource.
But if this UE certain RB over a slot have sent E-PDCCH, the demodulation pilot frequency distributing to this E-PDCCH needs to send on this time slot.As shown in Figure 9.In fig .9, at time slot 0, E-PDCCH sends on PRB0, at time slot 1, E-PDCCH sends on PRB11, but at PRB0 and PRB11, and two time slots all will send the pilot tone due to this E-PDCCH demodulation, as demodulated reference signal (DemodulationReferenceSignal, DMRS).
That is, if E-PDCCH sends out on a RB of a time slot, the pilot tone for this E-PDCCH is sent out on two time slots (RB to upper); This pilot tone can be specifically DMRS.
A RB on E-PDCCH to different UE be time frequency division, but DMRS is code divides, and is distinguished by different ports; To the DMRS port of the E-PDCCH that a UE uses, predefined DMRS port can be used.Can be notified by high-level signaling, also the RB/ time slot of E-PDCCH and antenna port can be bound.
In embodiments of the present invention, in units of Resource Block group, carried out being configured in the Physical Resource Block of evenly configuration E-PDCCH in system bandwidth, the same RBG that the quantity that can not occur to cause when carrying out the scheduling of E-PDCCH in units of RB is a lot of can not dispatch and use to the PDSCH of type 0, decreasing can not the quantity of RB of continuous dispensing, the Physical Resource Block then avoiding transmission E-PDCCH, to the restriction of the PDSCH scheduling of type 2 and type 0, realizes the reasonable distribution of data-signal and control signal transmission.
As shown in Figure 10, be the device for allocating resources in the embodiment of the present invention, this device can be arranged in base station.This device for allocating resources can comprise: physical block dispensing unit 10, for by distributed Resource Allocation Formula, can be used in the Physical Resource Block transmitting the Physical Downlink Control Channel E-PDCCH strengthened in units of Resource Block group RBG in allocating cell; Dummy block will dispensing unit 12, for being configured for the virtual resource blocks that corresponding E-PDCCH transmits according to the Physical Resource Block of described physical block dispensing unit configuration; Transmission unit 14, for carrying out E-PDCCH transmission according to the virtual resource blocks of described dummy block will dispensing unit configuration and the Physical Resource Block of described physical block dispensing unit configuration in described community.
Wherein, physical block dispensing unit when being configured, described in can be used in transmitting the Physical Resource Block of E-PDCCH and comprise the part physical Resource Block that can be used for transmitting in the Physical Resource Block of E-PDCCH.Further, the Physical Resource Block of described configuration is uniformly distributed in system bandwidth in units of Resource Block group.
Dummy block will dispensing unit 10 specifically can be used for the number being configured for the virtual resource blocks that corresponding E-PDCCH transmits according to the number of the Physical Resource Block of described physical block dispensing unit configuration, and configure the numbering of virtual resource blocks of described transmission E-PDCCH, and the mapping relations between Resource Block in the Physical Resource Block of Resource Block in described virtual resource blocks and described configuration.
The Physical Resource Block of described configuration is uniformly distributed in system bandwidth in units of Resource Block group.
The first time slot that the Physical Resource Block of described configuration is included in descending sub frame for transmit E-PDCCH the first Physical Resource Block and at the second time slot of described descending sub frame for transmitting second Physical Resource Block of described E-PDCCH,
Transmission unit 14, also can be specifically for, on the Physical Resource Block determined by described first time slot and frequency band corresponding to described first Physical Resource Block, and on the Physical Resource Block determined by described second time slot and frequency band corresponding to described second Physical Resource Block, and on the Physical Resource Block to be determined by described first time slot and frequency band corresponding to described second Physical Resource Block, and transmit pilot tone corresponding to described E-PDCCH on the Physical Resource Block determined by described second time slot and frequency band corresponding to described first Physical Resource Block.
Wherein, described pilot tone is demodulated reference signal, described transmission unit 14 also for, different Physical Resource Block is determined according to the different time slot of same subframe and same frequency, described different Physical Resource Block is for transmitting the E-PDCCH of different subscriber equipmenies, described different Physical Resource Block transmits the pilot tone of corresponding described different user devices, by the pilot tone of different user devices described in different port transmission.
When for E-PDCCH Resources allocation, the Physical Resource Block of E-PDCCH is configured in units of Resource Block group, the same RBG that the quantity that can not occur to cause when carrying out the scheduling of E-PDCCH in units of RB is a lot of can not dispatch and use to the PDSCH of type 0, decreasing can not the quantity of RB of continuous dispensing, the Physical Resource Block then avoiding transmission E-PDCCH, to the restriction of the PDSCH scheduling of type 2 and type 0, realizes the reasonable distribution of data-signal and control signal transmission.
Simultaneously, limit in units of Resource Block group allowing the Physical Resource Block of transmission E-PDCCH, make to transmit the Physical Resource Block of E-PDCCH and only account for part resource block group in descending sub frame, the Physical Resource Block avoiding transmission E-PDCCH may take major part in descending sub frame or all Resource Block group time, to the restriction of PDSCH dispatching downlink data, realize the reasonable distribution of data-signal and control signal transmission.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (11)
1. a resource allocation method, is characterized in that, described method comprises:
By distributed Resource Allocation Formula, in units of Resource Block group RBG, in allocating cell, can be used in the Physical Resource Block transmitting the Physical Downlink Control Channel E-PDCCH strengthened;
The virtual resource blocks of corresponding E-PDCCH transmission is configured for according to the Physical Resource Block of described configuration, and in described community, carry out E-PDCCH transmission according to the virtual resource blocks of configuration and the Physical Resource Block of described configuration, the first time slot that the Physical Resource Block of described configuration is included in descending sub frame for transmit E-PDCCH the first Physical Resource Block and at the second time slot of described descending sub frame for transmitting second Physical Resource Block of described E-PDCCH;
The described virtual resource blocks according to configuration and the Physical Resource Block of described configuration carry out E-PDCCH transmission in described community, comprising:
On the Physical Resource Block determined by described first time slot and frequency band corresponding to described first Physical Resource Block, and on the Physical Resource Block determined by described second time slot and frequency band corresponding to described second Physical Resource Block, and on the Physical Resource Block to be determined by described first time slot and frequency band corresponding to described second Physical Resource Block, and transmit pilot tone corresponding to described E-PDCCH on the Physical Resource Block determined by described second time slot and frequency band corresponding to described first Physical Resource Block.
2. the method for claim 1, is characterized in that, described in can be used in transmitting the Physical Resource Block of E-PDCCH and comprise the part physical Resource Block that can be used for transmitting in the Physical Resource Block of E-PDCCH.
3. method as claimed in claim 1 or 2, is characterized in that, is configured for the virtual resource blocks of corresponding E-PDCCH transmission, comprises according to the Physical Resource Block of described configuration:
The number of the virtual resource blocks that corresponding E-PDCCH transmits is configured for according to the number of the Physical Resource Block of described configuration, and configure the numbering of virtual resource blocks of described transmission E-PDCCH, and the mapping relations between Resource Block in the Physical Resource Block of Resource Block in described virtual resource blocks and described configuration.
4. the method for claim 1, is characterized in that, the Physical Resource Block of described configuration is uniformly distributed in system bandwidth in units of Resource Block group.
5. the method for claim 1, is characterized in that, described pilot tone is demodulated reference signal, and described method also comprises:
Different Physical Resource Block is determined according to the different time slot of same subframe and same frequency, described different Physical Resource Block is for transmitting the E-PDCCH of different subscriber equipmenies, described different Physical Resource Block transmits the pilot tone of corresponding described different user devices, by the pilot tone of different user devices described in different port transmission.
6. a device for allocating resources, is characterized in that, described device comprises:
Physical block dispensing unit, for by distributed Resource Allocation Formula, can be used in the Physical Resource Block transmitting the Physical Downlink Control Channel E-PDCCH strengthened in units of Resource Block group RBG in allocating cell;
Dummy block will dispensing unit, for being configured for the virtual resource blocks that corresponding E-PDCCH transmits according to the Physical Resource Block of described physical block dispensing unit configuration, the first time slot that the Physical Resource Block of described configuration is included in descending sub frame for transmit E-PDCCH the first Physical Resource Block and at the second time slot of described descending sub frame for transmitting second Physical Resource Block of described E-PDCCH;
Transmission unit, for carrying out E-PDCCH transmission according to the virtual resource blocks of described dummy block will dispensing unit configuration and the Physical Resource Block of described physical block dispensing unit configuration in described community;
Described transmission unit specifically for, on the Physical Resource Block determined by described first time slot and frequency band corresponding to described first Physical Resource Block, and on the Physical Resource Block determined by described second time slot and frequency band corresponding to described second Physical Resource Block, and on the Physical Resource Block to be determined by described first time slot and frequency band corresponding to described second Physical Resource Block, and transmit pilot tone corresponding to described E-PDCCH on the Physical Resource Block determined by described second time slot and frequency band corresponding to described first Physical Resource Block.
7. device as claimed in claim 6, is characterized in that, described in can be used in transmitting E-PDCCH Physical Resource Block comprise the part physical Resource Block that can be used for transmitting in the Physical Resource Block of E-PDCCH.
8. device as claimed in claims 6 or 7, it is characterized in that, dummy block will dispensing unit is configured for the number of the virtual resource blocks that corresponding E-PDCCH transmits specifically for the number of the Physical Resource Block according to the configuration of described physical block dispensing unit, and configure the numbering of virtual resource blocks of described transmission E-PDCCH, and the mapping relations between Resource Block in the Physical Resource Block that configures of Resource Block in described virtual resource blocks and described physical block dispensing unit.
9. device as claimed in claim 7, it is characterized in that, the Physical Resource Block of described configuration is uniformly distributed in system bandwidth in units of Resource Block group.
10. device as claimed in claim 6, it is characterized in that, described pilot tone is demodulated reference signal, described transmission unit also for, different Physical Resource Block is determined according to the different time slot of same subframe and same frequency, described different Physical Resource Block, for transmitting the E-PDCCH of different subscriber equipmenies, described different Physical Resource Block transmits the pilot tone of corresponding described different user devices, by the pilot tone of different user devices described in different port transmission.
11. 1 kinds of base stations, is characterized in that, comprise the device for allocating resources as described in claim 6 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210098365.3A CN103369675B (en) | 2012-04-06 | 2012-04-06 | A kind of resource allocation method and device |
| PCT/CN2013/073743 WO2013149594A1 (en) | 2012-04-06 | 2013-04-03 | Resource configuration method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210098365.3A CN103369675B (en) | 2012-04-06 | 2012-04-06 | A kind of resource allocation method and device |
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| WO2015120600A1 (en) * | 2014-02-13 | 2015-08-20 | 华为技术有限公司 | Data transmission method, apparatus and system |
| CN107027183B (en) * | 2016-02-02 | 2020-03-24 | 电信科学技术研究院 | Resource allocation and data transmission method and device |
| CN107041003B (en) * | 2016-02-03 | 2020-04-10 | 电信科学技术研究院 | Uplink and downlink transmission resource allocation method and device |
| CN107889233B (en) * | 2016-09-29 | 2020-05-08 | 华为技术有限公司 | Resource allocation method and device |
| KR20180041898A (en) * | 2016-10-17 | 2018-04-25 | 에스케이하이닉스 주식회사 | Memory system and operating method of memory system |
| CN108365928B (en) * | 2017-01-26 | 2023-04-07 | 北京三星通信技术研究有限公司 | Configuration information sending method, control channel resource detection method and device |
| CN108633021B (en) * | 2017-03-23 | 2024-01-19 | 华为技术有限公司 | Resource mapping method and device for uplink control channel |
| CN108696373B (en) * | 2017-04-06 | 2019-09-20 | 华为技术有限公司 | Virtual resource allocation method, NFVO and system |
| CN112888073B (en) | 2017-11-17 | 2022-12-16 | 维沃移动通信有限公司 | Resource mapping method, resource determining method, network side equipment and user terminal |
| CN117956617A (en) * | 2023-01-31 | 2024-04-30 | 中兴通讯股份有限公司 | Physical channel processing method, device and storage medium |
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| CN101080081A (en) * | 2006-05-25 | 2007-11-28 | 华为技术有限公司 | Allocation and indication method of system resource |
| CN101102140A (en) * | 2007-08-13 | 2008-01-09 | 中兴通讯股份有限公司 | Distributed resource mapping method |
| CN101371609A (en) * | 2006-01-18 | 2009-02-18 | 艾利森电话股份有限公司 | Localized and distributed transmission |
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| CN101371609A (en) * | 2006-01-18 | 2009-02-18 | 艾利森电话股份有限公司 | Localized and distributed transmission |
| CN101080081A (en) * | 2006-05-25 | 2007-11-28 | 华为技术有限公司 | Allocation and indication method of system resource |
| CN101102140A (en) * | 2007-08-13 | 2008-01-09 | 中兴通讯股份有限公司 | Distributed resource mapping method |
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