CN102395204A - Method and system for increasing quantity of physical layer control channel resource in mobile communication - Google Patents
Method and system for increasing quantity of physical layer control channel resource in mobile communication Download PDFInfo
- Publication number
- CN102395204A CN102395204A CN2011103403886A CN201110340388A CN102395204A CN 102395204 A CN102395204 A CN 102395204A CN 2011103403886 A CN2011103403886 A CN 2011103403886A CN 201110340388 A CN201110340388 A CN 201110340388A CN 102395204 A CN102395204 A CN 102395204A
- Authority
- CN
- China
- Prior art keywords
- vue
- pdcch
- eue
- rnti
- expansion control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a method and a system for increasing the quantity of a physical layer control channel resource in mobile communication. The method comprises the steps that a base station utilizes a Z-RNTI to map a PDCCH (Physical Downlink Control Channel) of a vUE to a control area of a subframe; an expansion control area is distributed in a data area of the subframe; and the PDCCH data of the vUE contains resource distribution information for indicating the expansion control area. In the expansion control area, the base station utilizes the Z-RNTI to map the PDCCH of the vUE once again, and newly points to a new PDSCH (Physical Downlink Control Channel) area as a new expansion control area, and the like, when the N time expansion is performed, a newly distributed expansion control area is ensured to be located in an idle PDSCH area during the N-1 time expansion. The invention can increase the resource distributed in the physical layer control channel, and reduces the probability of resource conflict.
Description
Technical field
The present invention relates to the communications field, particularly relate to the method and system of expansion physical layer control channel resource quantity in the mobile communication.
Background technology
LTE (Long Term Evolution, Long Term Evolution) project is the evolution of 3G, and it improves and strengthened the aerial access technology of 3G.Adopt OFDM (OFDM, Orthogonal Frequency Division Multiplexing) and MIMO (multiple-input and multiple-output, Multiple-Input Multiple-Out-put) sole criterion as its wireless network evolution.The peak rate of descending 100Mbit/s and up 50Mbit/s can be provided under the 20MHz spectral bandwidth.Improve the performance of Cell Edge User, improved cell capacity, and reduced system delay.LTE of the present invention system has comprised its follow-up evolution version such as LTE-A.
The OFDM that LTE has adopted on down direction is a kind of data transfer mode efficiently; Its basic thought is in frequency domain, given channel to be divided into a plurality of orthogonal sub-channels; On each subchannel, use a number of sub-carrier to modulate, and each subcarrier parallel transmission.Like this, although total channel be non-flat forms, have frequency selectivity; But each subchannel relatively flat, frequency band is narrow, and what on each subchannel, carry out is narrow band transmission; Signal bandwidth is less than the respective bandwidth of channel, so the just interference between the erasure signal waveform greatly.OFDM is that its allows subcarrier spectrum to overlap with respect to the difference of general multi-carrier transmission, as long as satisfy between subcarrier mutually orthogonally, then can isolate data-signal from the subcarrier of aliasing.Because OFDM allows the subcarrier spectrum aliasing, its spectrum efficiency improves greatly, thereby is a kind of modulation system efficiently.
A kind of frame structure of LTE has been described in Fig. 1; 1 radio frames comprises 10 sub-frame (subframe), 20 time slots (slot); Each descending time slot is divided into several OFDM symbols again, and is different according to the length of CP (Cyclic Prefix), and the quantity of the OFDM symbol that comprises is also different.When using conventional CP, a descending time slot comprises 7 OFDM symbols; When using expansion CP, a descending time slot comprises 6 OFDM symbols.In this time, a RE (resource element, Resource Unit) is the resource of a symbol and a subcarrier definition, and a RB (resource bock, Resource Block) is 12 subcarriers and the running time-frequency resource that descending time slot is shared.The frame structure of LTE has different variation according to different scene with configuration with the Resource Block that comprises definition, and method described in the invention is all applicable in various other possible structural arrangements, is not limited to the description of Fig. 1.
Different physical channels can be shone upon usually on the resource of correspondence in the LTE system in each subframe, in Fig. 2, described the resource mapping signal of these physical channels.In the resource mapping, at first place CRS (cell reference signals); Place PCFICH (physical format indicating channel) then; Terminal system can obtain the occupied time-domain symbol number in control area in this sub-frame through the decoding to PCFICH; Base station system can dispose 1-3 symbol as the control area generally speaking, and the remaining symbol of this sub-frame is used to carry PDSCH as the data area.PHICH (physics HARQ (mix automatically and retransmit) indicator channel) is continued in the control area, to place in the base station; After accomplishing these resource mappings, not use resource remaining in the control area is extracted out and renumbers the candidate's resource as PDCCH (Physical Downlink Control Channel).Relevant CRS, PCFICH, the concrete mapping ruler of PHICH can be with reference to the TS36.211 standard.
In the LTE system,, defined the control channel resource units of two special uses for effective configuration PDCCH and other down control channels; REG (resource unit group; RE group) and CCE (control channel particle, Control Channel Element), a REG is made up of 4 adjacent on four frequency domains number of sub-carrier; And a CCE is made up of some REG; A PDCCH is made up of several CCE again, exists multiple different PDCCH form to select here, in table 1, has enumerated the parameter of PDCCH form 0-3.PDCCH adopts the QPSK modulation, and therefore being equivalent to every subcarrier can carry 2bit information.
| The PDCCH form | The CCE number that comprises | The REG number that comprises | The PDCCH bit that comprises |
| ?0 | ?1 | ?9 | 72 |
| ?1 | ?2 | ?18 | 144 |
| ?2 | ?4 | ?36 | 288 |
| ?3 | ?8 | ?72 | 576 |
Table 1
In the LTE system; In order to be suitable for different transmission environment and demands, all designed multiple DCI (Downlink Control Information, Downlink Control Information) form in uplink and downlink; Come to be the corresponding suitable transmission plan of UE (terminal) configuration; Explicit or implicit having comprised is this user-selected fixed transmission parameter, for example this user's resource allocation, information such as modulation/coding mode selection in the information of DCI.
Under different transmission modes and bandwidth; DCI has different bit numbers; The LTE system is according to the channel conditions of this number with the UE of correspondence; Selection can be satisfied the PDCCH form of transmission quality, and the DCI information of correspondence is carried out chnnel coding to produce with data behind the coding of corresponding selected format the corresponding PDCCH data of DCI information.
The PDCCH data will be mapped on the physical resource according to the methods below,
At first the residue RE resource with the control area extracts and is combined into successively N
CCEIndividual CCE defines search volume (search space) above that, maybe corresponding a plurality of PDCCH candidates on a search volume.The corresponding CCE of corresponding m PDCCH does on the search volume
formula 1
Wherein, i=0 ... L-1, L is also referred to as the degree of polymerization for the corresponding CCE number of selected PDCCH form; Y
k=(AY
K-1) modD, Y
-1=n
RNTI≠ 0, A=39827, D=65537,
n
sIt is time slot sequence number in the 10m s radio frames.
RNTI is used for distinguishing the purposes that PDCCH goes up loaded information,
At present, in standard, defined a series of RNTI values,
(1) SI-RNTI: system message;
(2) P-RNTI: paging;
(3) RA-RNTI: indicate the user and send out the employed Resource Block of random access guiding;
(4) C-RNTI: customer service;
(5) TPC-PUCCH-RNTI:PUCCH uplink power control information;
(6) TPC-PUSCH-RNTI:PUSCH uplink power control information;
(7) usage of SPS C-RNTI is the same with C-RNTI, just uses when only being to use semi-persistent scheduling.
Describe of the distribution of 3GPP system in the table 2, save from 3GPP TS36.3217.1 to the RNTI value
Table 2
A kind of RNTI defines in standard, and all UE need monitoring, and for example P-RNTI is FFFE; SI-RNTI is FFFF; Loaded information is to be used for the signaling of paging or to be high-rise SIB (system information block, System Information Block) signaling above when UE detects these two RNTI values, just knowing, a kind of in addition is dynamic assignment; For example each UE can be assigned with a unique C-RNTI in the process that inserts; When (Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, Cell Radio Network Temporary Identifier) detects with own RNTI value of mating as UE, be one's own with regard to knowing top information; When this two category information of mapping, mapping position is different.If common signaling then is mapped to a common search space, method is to get Y
k=0, if the signaling at terminal oneself then is mapped to user search volume separately according to formula 1.The search volume that is equivalent to each user is by pseudorandom distribution.
The search volume of standard T S36.211 support and the PDCCH number of candidates of support in table 3, have been defined, PDCCH search volume and corresponding PDCCH option (3GPP TS 26.213 9.1.1 joint).
Table 3
The terminal needs to attempt all PDCCH possible positions and DCI beared information size when detecting PDCCH information, the data that obtain when decoding satisfy the CRC check of itself just can think the proper configuration information that obtained regular the time.
Wherein, Can there be overlapping in user's space and public space between the user's space, therefore the PDCCH resource may take place collide; Fig. 3 has described the example that collision takes place; UE 1 is 4 search volume for the degree of polymerization, and UE 2 is 8 search volume for the degree of polymerization, and UE 3 is 1 search volume for the degree of polymerization.In this case, no matter how UE 2 is distributed, federation and UE 1 or UE 3 collide.
The base station is through dispatch the collision of avoiding information mutual as far as possible.But increase along with the UE number; Support the MIMO technology of high power capacity transmission, and single UE transmission when supporting a plurality of CC (component carrier), and the deployment of heterogeneous network; Need the Downlink Control Information of transmission increasing, the limited problem of the capacity of PDCCH is obvious day by day like this.
In the existing technology; The solution that generally has both direction; A solution is for PDCCH distributes more RE resource, comprises with the mode of time-division or with the part RE that the mode of frequency division will be used for the PDSCH transmission originally being used for transmitting PDCCH, for example the R-PDCCH scheme; Perhaps introduce the transmission means with bigger transmission capacity, for example the space diversity of MIMO perhaps improves the order of modulation of transmission symbol.Another kind of solution is to reduce the carrying bit number of PDCCH; On the basis that guarantees transmission quality, reduce the resource of the shared RE of each PDCCH; Adopt littler DCI form; Consider that perhaps the mode through difference reduces the size of the payload of PDCCH (payload), guarantee that the RE resource of same quantity can be dispatched more UE.
At present in the support that in standard, has realized two kinds of schemes; A kind of is exactly above-mentioned PDCCH scheme; A kind of in addition is exactly the R-PDCCH scheme that is directed against relaying (Relay) system, and existing P DCCH takies first three symbol of a sub-frame at most, if keep existing design constant; Do not carry out any enhancing, can't adapt to requirement the capacity extension of PDCCH; Thereby the R-PDCCH scheme then is relatively more fixing to relatively fixing relay station channel status and optimal design that carry out, and towards macrocell multi-user's situation, situation is complicated more than the relaying situation, and the flexibility that seems is not enough.
And for other propositions improvement project, also all have deficiency separately.For example adopt new DCI to reduce the carrying bit, may need define again to specific transactions, can also need the terminal that this new DCI size is carried out blind check simultaneously the exerting an influence of business to wherein information bit; Introducing the empty technology of dividing then maybe be to will be to this new new demodulated reference signal and the demodulation method of demodulation mode design, and solves the relevant a series of relationship maps problems in RRE (remote radio frequency equipment) position that one group of user occupies when same/occupies with PDCCH during the frequency resource; The mode of employing difference reduces the size of the payload of each PDCCH; Then require channel and business between UE and the eNB (evolved base station) to remain unchanged within a certain period of time; And this is difficult to realize for actual conditions; Because become when actual channel and user's service condition all is, so can influence the flexibility of scheduling, also can't make the channel condition of the maximum adaptive UE of PDCCH.
Summary of the invention
The invention provides the method for expansion physical layer control channel resource quantity in a kind of mobile communication, can increase the resource of distributing to physical layer control channel, reduce the probability that resource contention takes place.
The present invention also provides the system of expansion physical layer control channel resource quantity in a kind of mobile communication, can increase the resource of distributing to physical layer control channel, reduces the probability that resource contention takes place.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses the method for expansion physical layer control channel resource quantity in a kind of mobile communication, said method comprises:
Step 1; For virtual terminal vUE distributes Radio Network Temporary Identifier RNTI, the RNTI of said distribution is extended wireless network temporary mark Z-RNTI, and each vUE has the corresponding expansion control zone and the terminal eUE of the support expanded of correspondence; With said vUE ordering, has said Z-RNTI among the eUE;
Step 2, first vUE is extracted by ordering in the base station from vUE, and said first vUE is the vUE when pre-treatment;
Step 3, base station scheduling resource from the idling-resource of the data area of subframe is distributed to when the corresponding expansion control zone of the vUE of pre-treatment; If when the vUE of pre-treatment for ordering in last vUE, it is regional that the physical layer descending control channel PDCCH that then will work as the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control, execution in step 4; Otherwise, extract next vUE by ordering, be mapped to said expansion control zone with the PDCCH of said next vUE with as the PDCCH of the corresponding eUE of the vUE of pre-treatment, be the vUE when pre-treatment, repeated execution of steps 3 with said next vUE;
Step 4, base station are mapped to the PDCCH of ordinary terminal tUE and said first vUE the control area of said subframe;
Step 5; The base station selects to use on the corresponding PDCCH channel said Z-RNTI to transmit the PDCCH data of said vUE in said Z-RNTI corresponding search space for each vUE; Comprise the resource allocation information of the resource that the corresponding expansion control zone of the said vUE of indication takies in the PDCCH data of said vUE, use the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of said eUE to transmit the PDCCH data of said eUE for each eUE;
Step 6, eUE decodes the PDCCH data of said first vUE by Z-RNTI, and the expansion control zone of the resource allocation information indication in the PDCCH data of said first vUE is that the expansion control of current decoding is regional;
Step 7; EUE C-RNTI by said eUE in the search volume in the expansion control zone of current decoding detects PDCCH; And in the search volume in the expansion control of said current decoding zone, press the PDCCH data of Z-RNTI decoding vUE, decode successfully if press Z-RNTI, the expansion control of then indicating with the resource allocation information in the PDCCH data of the said vUE that decodes is regional to be the expansion control space of current decoding; Repeated execution of steps 7; Otherwise, confirm the expansion control allocation of space end of base station to vUE, step 7 finishes.
Wherein, said Z-RNTI be reserved value or base station among the RNTI through signaling with preset Z-RNTI value notice to eUE.
Wherein, in the said step 3 further do with the PDCCH of next vUE with when the PDCCH of the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control zone,
Step 31, the base station is equal to said eUE with the PDCCH of next vUE with when the PDCCH of the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control zone with said next vUE.
Wherein, said step 4 further does,
When step 41, base station are mapped to the control area of subframe at the PDCCH with tUE and first vUE, said first vUE is equal to tUE.
Wherein, said method also comprises:
Step 51; EUE is when decoding physical layer descending shared channel PDSCH; Judge whether comprise the resource that expansion control zone that said eUE decodes takies in the resource that said PDSCH takies, if comprise then the resource that the said expansion control zone that comprises takies is got rid of from the resource that said PDSCH takies.
Wherein, each expansion control zone has corresponding transmission means, also comprises the information of the transmission means of using in the corresponding expansion control zone of the said vUE of indication in the PDCCH data of said vUE;
Said step 5 further does,
Step 61, the base station uses Z-RNTI to transmit the PDCCH data of said vUE for first vUE;
Step 62, base station be for each vUE except that first vUE, uses the transmission means in the expansion control zone that Z-RNTI is mapped to by the PDCCH of said vUE to transmit the PDCCH data of said vUE;
Step 63, base station be for each eUE, and the transmission means in the expansion control zone that the C-RNTI that uses said eUE is mapped to by the PDCCH of said eUE is transmitted the PDCCH data of said eUE;
EUE C-RNTI detection PDCCH by said eUE in the search volume in the expansion control zone of current decoding further does in the said step 7
Step 64, eUE detects PDCCH according to transmission means C-RNTI by said eUE in said search volume in the expansion control zone of current decoding;
Described in the said step 7 in the search volume in the expansion control of current decoding zone the PDCCH data by Z-RNTI decoding vUE further do
Step 65, eUE presses Z-RNTI decoding vUE according to the transmission means in the expansion control zone of current decoding in said search volume PDCCH data.
The invention also discloses the method for expansion physical layer control channel resource quantity in a kind of mobile communication, said method comprises:
Step 1; For virtual terminal vUE distributes Radio Network Temporary Identifier RNTI; The RNTI of said distribution is extended wireless network temporary mark Z-RNTI, and each vUE has the corresponding expansion control zone and the terminal eUE of the support expanded of correspondence, with said vUE ordering; Have said Z-RNTI among the eUE, the same vUE of each eUE is corresponding;
Step 2, first vUE is extracted by ordering in the base station from vUE, and said first vUE is the vUE when pre-treatment;
Step 3, base station scheduling resource from the idling-resource of the data area of subframe is distributed to when the corresponding expansion control zone of the vUE of pre-treatment; If when the vUE of pre-treatment for ordering in last vUE, it is regional that the physical layer descending control channel PDCCH that then will work as the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control, execution in step 4; Otherwise, extract next vUE by ordering, be mapped to said expansion control zone with the PDCCH of said next vUE with as the PDCCH of the corresponding eUE of the vUE of pre-treatment, be the vUE when pre-treatment, repeated execution of steps 3 with said next vUE;
Step 4, base station are mapped to the PDCCH of ordinary terminal tUE and said first vUE the control area of said subframe;
Step 5; The base station selects to use on the corresponding PDCCH channel said Z-RNTI to transmit the PDCCH data of said vUE in said Z-RNTI corresponding search space for each vUE; Comprise the resource allocation information of the resource that the corresponding expansion control zone of the said vUE of indication takies in the PDCCH data of said vUE, use the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of said eUE to transmit the PDCCH data of said eUE for each eUE;
Step 6, eUE decodes the PDCCH data of said first vUE by Z-RNTI, and the expansion control zone of the resource allocation information indication in the PDCCH data of said first vUE is that the expansion control of current decoding is regional;
Step 7; EUE C-RNTI by said eUE in the search volume in the expansion control zone of current decoding detects PDCCH; And in the search volume in the expansion control of said current decoding zone, press the decode PDCCH data of vUE of Z-RNTI; If detect PDCCH by C-RNTI, then step 7 finishes; Otherwise, be the expansion control space of current decoding, repeated execution of steps 7 with the expansion control zone of the indication of the resource allocation information in the PDCCH data of the said vUE that decodes.
The invention also discloses the system of expansion physical layer control channel resource quantity in a kind of mobile communication; Virtual terminal vUE is assigned Radio Network Temporary Identifier RNTI; The RNTI of said distribution is extended wireless network temporary mark Z-RNTI; Each vUE has the corresponding expansion control zone and the terminal eUE of the support expanded of correspondence, with said vUE ordering, has said Z-RNTI among the eUE;
Said system comprises the base station, ordinary terminal tUE, and eUE,
Said base station comprises:
Expansion control region allocation module is used for extracting first vUE by ordering from vUE, and said first vUE is the vUE when pre-treatment; Scheduling resource is distributed to when the corresponding expansion control zone of the vUE of pre-treatment from the idling-resource of the data area of subframe; If when the vUE of pre-treatment for ordering in last vUE, the physical layer descending control channel PDCCH that then will work as the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control zone, startup mapping block; Otherwise, extract next vUE by ordering, be mapped to said expansion control zone with the PDCCH of said next vUE with as the PDCCH of the corresponding eUE of the vUE of pre-treatment, be vUE with said next vUE, the duplicate allocation operation when pre-treatment;
Mapping block is used for the PDCCH of tUE and said first vUE is mapped to the control area of said subframe;
Transport module; Be used in said Z-RNTI corresponding search space, selecting to use on the corresponding PDCCH channel said Z-RNTI to transmit the PDCCH data of said vUE for each vUE; Comprise the resource allocation information of the resource that the corresponding expansion control zone of the said vUE of indication takies in the PDCCH data of said vUE, use the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of said eUE to transmit the PDCCH data of said eUE for each eUE;
EUE is used for decoding by Z-RNTI the PDCCH data of said first vUE, and the expansion control zone of the resource allocation information indication in the PDCCH data of said first vUE is that the expansion control of current decoding is regional; C-RNTI by said eUE in the search volume in the expansion control of current decoding zone detects PDCCH; And in the search volume in the expansion control of said current decoding zone, press the decode PDCCH data of vUE of Z-RNTI; If pressing Z-RNTI decodes successfully; Then the expansion control zone with the indication of the resource allocation information in the PDCCH data of the said vUE that decodes is the expansion control space of current decoding, the repeat decoding operation, otherwise; Confirm the extending space distribution end of base station, end operation to vUE.
Wherein, Said eUE also is used for when decoding physical layer descending shared channel PDSCH; Judge whether comprise the resource that expansion control zone that said eUE decodes takies in the resource that said PDSCH takies, if comprise then the resource that the said expansion control zone that comprises takies is got rid of from the resource that said PDSCH takies.
Wherein, each expansion control zone has corresponding transmission means, also comprises the information of the transmission means of using in the corresponding expansion control zone of the said vUE of indication in the PDCCH data of said vUE;
Said transport module is further used for using Z-RNTI to transmit the PDCCH data of said vUE for first vUE; For each vUE except that first vUE, use the transmission means in the expansion control zone that Z-RNTI is mapped to by the PDCCH of said vUE to transmit the PDCCH data of said vUE; For each eUE, the transmission means in the expansion control zone that the C-RNTI that uses said eUE is mapped to by the PDCCH of said eUE is transmitted the PDCCH data of said eUE;
Said eUE is further used for detecting PDCCH according to transmission means C-RNTI by said eUE in said search volume in the expansion control zone of current decoding when in the search volume in the expansion control of current decoding zone, detecting PDCCH by the C-RNTI of said eUE;
Said eUE is being further used for transmission means according to the expansion control zone of the current decoding PDCCH data by Z-RNTI decoding vUE in said search volume during by the PDCCH data of Z-RNTI decoding vUE in the search volume in the expansion control of current decoding zone.
Wherein, said expansion control region allocation module is equal to said eUE with the PDCCH of next vUE with when the PDCCH of the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control zone with said next vUE.
Wherein, when said transport module is mapped to the control area of subframe at the PDCCH with tUE and first vUE, said first vUE is equal to tUE.
By above-mentioned visible,, can increase the capacity of control area in the control area that the data area expansion makes new advances through utilizing the PDCCH transmission data of virtual terminal; Be compared to the mode of R-PDCCH, the method for salary distribution of the present invention is more flexible, the more effectively variation of adaptive channel; Be compared to the method for the introducing transmission modulation system of prior art, the present invention is the transmission method that adopts prior art in transmission, and the present invention is more convenient for realizing that performance is more guaranteed.
Description of drawings
Fig. 1 is the sketch map of frame structure among the LTE;
Fig. 2 is a subframe physical resource mapping sketch map among the LTE;
Fig. 3 is the sketch map that collision takes place the PDCCH resource;
Fig. 4 is the flow chart of the method for expansion physical layer control channel resource quantity in the mobile communication of the present invention;
Fig. 5 is the sketch map of the embodiment for expansion control region allocation resource of the present invention;
Fig. 6 is the sketch map that tUE and eUE are mapped to original control area and expansion control zone respectively;
Fig. 7 is the sketch map that the present invention adopts the embodiment of multiple transmission means.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer, describe the present invention below in conjunction with accompanying drawing and specific embodiment.
A kind of method of expanding the physical layer control channel resource quantity of the present invention is as shown in Figure 4.Said method comprises the steps.
In a preferable embodiment, Z-RNTI be among the RNTI reserved value or preset value or base station for through signaling with preset Z-RNTI value notice to eUE.
For example, to the method for salary distribution employing fixed allocation of Z-RNTI, the value among the reserved value FFF4-FFF C in the table 2 is distributed to vUE.
In system, there are two kinds of terminal UE; First kind is the ordinary terminal that only carries out work by PDCCH transmission method in the standard; Be expressed as tUE, second kind is method of work and the terminal that the present invention expands the support expanded of PDCCH method of work of supporting the standard of prior art simultaneously, is expressed as eUE.
The virtual terminal that totally is regarded as correspondence of one or more eUE, virtual terminal is expressed as vUE.Carry out the expansion in multistage control space among the present invention, the corresponding vUE in the expansion control space of each grade.
The corresponding one or more vUE of eUE.
Step S200, first vUE is extracted by ordering in the base station from vUE, and first vUE is the vUE when pre-treatment.
A plurality of vUE are sorted, and the expansion control zone of vUE is given in the base station by the sequential scheduling resource allocation of ordering.
Step S300, base station scheduling resource from the idling-resource of the data area of subframe distribute to when the corresponding expansion control zone of the vUE of pre-treatment; If when the vUE of pre-treatment for ordering in last vUE, it is regional that the physical layer descending control channel PDCCH that then will work as the corresponding eUE of the vUE of pre-treatment is mapped to this expansion control, execution in step S400; Otherwise, extract next vUE by ordering, be mapped to when the expansion control zone of the vUE of pre-treatment with the PDCCH of next vUE with as the PDCCH of the corresponding eUE of the vUE of pre-treatment, be the vUE when pre-treatment, repeated execution of steps S300 with the next vUE that extracts.
The base station is with the PDCCH of next vUE with when the PDCCH of the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control zone; Next vUE is equal to eUE at the corresponding levels; The implication that is equal to is the transmission means of base station to vUE, and PDCCH resource mapping ruler etc. are identical with the eUE of the corresponding levels.
As shown in Figure 6, for the PDCCH of tUE, the PDCCH of tUE is mapped to the control area by prior art.For eUE, the RE resource in the expansion control zone of the vUE that this eUE is corresponding extracts and is combined into successively N
CCE_ePDCCHIndividual CCE, by formula the PDCCH of 1 couple of eUE shines upon, and the resource that takies of the PDCCH of tUE and eUE will be distributed in the different zones like this.As stated, when in the control area of subframe, shining upon, first vUE is equal to tUE, and when in the expansion control zone, shining upon, vUE is equal to eUE at the corresponding levels.
Step S400, the base station is mapped to the PDCCH of first vUE in ordinary terminal tUE and the ordering control area of subframe.
Wherein, when the base station is mapped to the control area of subframe at the PDCCH with tUE and first vUE, first vUE is equal to tUE.
The implication that is equal to is the transmission means of base station to first vUE, and PDCCH resource mapping ruler etc. are identical with tUE.
In one embodiment, as shown in Figure 5, in the control area, be the resource that 5 tUE distribute resource that PDCCH take and take for first vUE distribution PDCCH.The PDCCH of 5 tUE points to respectively according to the method for prior art and distributes to the resource that PDSCH separately takies.From the data area, distribute in the remaining idling-resource after the PDSCH of tUE scheduling resource and distribute to first vUE.
Step S500; The PDCCH data of this vUE of Z-RNTI transmission are selected to use on the corresponding PDCCH channel in the base station in said Z-RNTI corresponding search space for each vUE; The resource allocation information that comprises the resource that the corresponding expansion control zone of this vUE of indication takies in the PDCCH data of vUE uses the PDCCH data of this eUE of Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI transmission of this eUE for each eUE.
In an embodiment; VUE does not have corresponding physical end in reality; Do not have actual terminal can utilize the information above the PDCCH of vUE to transmit, therefore can define again, it is pointed to a PD SCH zone information bit in the PDCCH data of vUE; This piece zone is exactly the corresponding expansion control zone of vUE that new expansion is come out, and is expressed as the ePDCCH zone.For example; Loaded information adopts DCI form 2 (TS36.2125.3.3.1.5 joints) above the PDCCH of vUE; Wherein comprise the power adjustment commands that TPC 2 bits are used to indicate PUCCH; Do not use this information to carry out PUCCH (physical layer ascending control channel) transmission because do not have the terminal in the reality; So the symbolic number that the time domain that can utilize these bits to define the ePDCCH zone occupies is first symbol of data area if predesignate the time domain original position in ePDCCH zone, then can draw the symbol ordinal number that the ePDCCH zone takies.In DCI (Downlink Control Information) form 2, also comprise resource allocation bit (Resource block assignment), be used to represent a user's frequency domain resource distribution, can keep this definition.Like this, the resource allocation information that in the PDCCH of vUE data, comprises the resource that indication ePDCCH zone takies.The resource allocation methods of ePDCCH of the present invention is not restricted to aforementioned giving an example.Distribute and to satisfy restrictive condition, the ePDCCH region allocation is not distributed to data area and the idling-resource in other expansion control spaces of the free time of terminal traffic, as shown in Figure 5.So distribution can the data at distribution service terminal and the demodulation in other expansion control spaces of having distributed exert an influence to other.
Step S600, eUE decodes the PDCCH data of first vUE by Z-RNTI, and the expansion control zone of the resource allocation information indication in the PDCCH data of this first vUE is that the expansion control of current decoding is regional.
Step S700; EUE C-RNTI by this eUE in the search volume in the expansion control zone of current decoding detects PDCCH; And in the search volume in the expansion control of current decoding zone, press the PDCCH data of Z-RNTI decoding vUE, decode successfully if press Z-RNTI, the expansion control of then indicating with the resource allocation information in the PDCCH data of the vUE that decodes is regional to be the expansion control space of current decoding; Repeated execution of steps S700; Otherwise, confirming the expansion control allocation of space end of base station to vUE, step S700 finishes.
During the resource of base station assigns data area; For first vUE; Earlier the resource allocation of data area being given the PDSCH of tUE, the more remaining idling-resource of data area is distributed to the expansion control zone, is the resource that eUE distributes PDSCH to take by prior art then.For the vUE after first vUE in the ordering, the idling-resource that the data area is current is distributed to the corresponding expansion control zone of this vUE, the resource of distributing PDSCH to take by prior art for the corresponding eUE of this vUE then.Thereby, the situation of expansion control region resource can appear comprising in the resource that the PDSCH of eUE takies.
In a preferred implementation.
Said method also comprises:
Step S800; EUE is when decoding physical layer descending shared channel PDSCH; Judge whether comprise the resource that expansion control zone that this eUE decodes takies in the resource that said PDSCH takies, if comprise then the resource that the said expansion control zone that comprises takies is got rid of from the resource that said PDSCH takies.
In a preferred implementation, each expansion control zone has corresponding transmission means, also comprises the information of the transmission means of using in the corresponding expansion control zone of the said vUE of indication in the PDCCH data of vUE.
Said step S500 further comprises the steps.
Step S510, the PDCCH data of Z-RNTI transmission vUE are used in the base station for first vUE.
Step S520, the base station is for each vUE except that first vUE, uses the PDCCH data of this vUE of transmission means transmission in the expansion control zone that Z-RNTI is mapped to by the PDCCH of this vUE.
Step S530, the base station is for each eUE, the PDCCH data of this eUE of transmission means transmission in the expansion control zone that the C-RNTI that uses this eUE is mapped to by the PDCCH of this eUE.
EUE C-RNTI detection PDCCH by eUE in the search volume in the expansion control zone of current decoding further is among the said step S700:
Step S710, eUE detects PDCCH according to transmission means C-RNTI by said eUE in the search volume in the expansion control zone of current decoding in the expansion control zone of current decoding.
EUE in the search volume in the expansion control zone of current decoding by the PDCCH data of Z-RNTI decoding vUE further is among the said step S700:
Step S720, eUE presses Z-RNTI decoding vUE according to the transmission means in the expansion control zone of current decoding in the search volume in the expansion control zone of current decoding PDCCH data.
Embodiments of the invention are described below.
The base station utilizes Z-RNTI with the control area that the PDCCH of vUE is mapped to subframe, in the data area of subframe distribution expansion control zone, comprises the resource allocation information that is used to indicate the expansion control zone in the PDCCH data of vUE.
In newly assigned expansion control zone; The base station utilizes Z-RNTI to carry out the PDCCH mapping of vUE once more; Again point to a new PDSCH zone as new expansion control zone, a place, and and the like, when carrying out the N time expansion; Need satisfy newly assigned expansion control zone in the N-1 time still unappropriated idle PDSCH zone, guarantee that like this decoding at terminal can not receive the influence in follow-up expansion control zone.And regional occupied zone of expansion control of N time before the N time resource allocation of obtaining of decoding need exclude, terminal.Because it must be the information that has solved the N time expansion control zone that eUE can carry out the N time decoding at this moment, can get rid of.
On each expansion control zone, can adopt different transmission technology way; Its concrete information is at the beared information bit of the Z-RNTI of upper level, and promptly the PDCCH data of a last vUE in the ordering indicate type; With 2 bits is example, has described a kind of possible mode in the table 4 and has indicated.Wherein, the transmission means of using in the back is compatible to the transmission means of formerly using.
| Bit number | Corresponded manner |
| 00 | Traditional approach, QPSK utilizes the CRS demodulation |
| 01 | The MIMO space division multiplexing utilizes the DMRS demodulation |
| 10 | The R-PDCCH mode, |
| 11 | High order modulation for example adopts 16QM |
Table 4
As shown in Figure 7, one has the example that 5 terminals are scheduled, two tUE wherein, and three eUE, three eUE are respectively with three vUE correspondences.The ordering of vUE is vUE1, vUE2, vUE3; The corresponding expansion control of vUE1 zone 1, the corresponding expansion control of vUE1 zone 2, the corresponding expansion control of vUE1 zone 3.
Scheduling tUE1 and tUE2 in the control area of subframe open up expansion control zone 1 with Z-RNTI, and represent that with mode bit 00 expansion control zone 1 will utilize traditional approach,
The PDCCH of scheduling eUE1 in expansion control zone 1; And the expansion control zone 2 of continuing to open with Z-RNTI vUE2, and represent that with mode bit 10 expansion control zone 2 uses the R-PDCCH modes, in expansion control zone 2, dispatch the PDCCH of eUE 2; And continue to open the expansion control zone 3 employing modes 01 of vUE3; Empty branch mode does not re-use Z-RNTI on expansion control zone 3, expression stops the chain in expansion control zone.The PDCCH of scheduling eUE 3 in the expansion control zone 3.
EUE2 need exclude the physics RE resource that expansion control zone 1 wherein occupies when extracting data, eUE3 need exclude the physics RE resource that expansion control zone 1 and expansion control zone 3 occupy when extracting data.
The invention also discloses the method for expansion physical layer control channel resource quantity in a kind of mobile communication, said method comprises the steps.
Step S100A; For virtual terminal vUE distributes Radio Network Temporary Identifier RNTI; The RNTI of said distribution is extended wireless network temporary mark Z-RNTI, and each vUE has the corresponding expansion control zone and the terminal eUE of the support expanded of correspondence, with said vUE ordering; Have said Z-RNTI among the eUE, the same vUE of each eUE is corresponding.
Step S200A, first vUE is extracted by ordering in the base station from vUE, and said first vUE is the vUE when pre-treatment.
Step S300A, base station scheduling resource from the idling-resource of the data area of subframe distribute to when the corresponding expansion control zone of the vUE of pre-treatment; If when the vUE of pre-treatment for ordering in last vUE, it is regional that the physical layer descending control channel PDCCH that then will work as the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control, execution in step S400A; Otherwise, extract next vUE by ordering, be mapped to said expansion control zone with the PDCCH of said next vUE with as the PDCCH of the corresponding eUE of the vUE of pre-treatment, be the vUE when pre-treatment, repeated execution of steps S300A with said next vUE.
Step S400A, the base station is mapped to the PDCCH of ordinary terminal tUE and said first vUE the control area of said subframe.
Step S500A; The base station selects to use on the corresponding PDCCH channel said Z-RNTI to transmit the PDCCH data of said vUE in said Z-RNTI corresponding search space for each vUE; Comprise the resource allocation information of the resource that the corresponding expansion control zone of the said vUE of indication takies in the PDCCH data of said vUE, use the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of said eUE to transmit the PDCCH data of said eUE for each eUE.
Step S600A, eUE decodes the PDCCH data of said first vUE by Z-RNTI, and the expansion control zone of the resource allocation information indication in the PDCCH data of said first vUE is that the expansion control of current decoding is regional.
Step S700A; EUE C-RNTI by said eUE in the search volume in the expansion control zone of current decoding detects PDCCH; And in the search volume in the expansion control of said current decoding zone, press the decode PDCCH data of vUE of Z-RNTI; If detect PDCCH by C-RNTI, then step S700A finishes; Otherwise, be the expansion control space of current decoding, repeated execution of steps S700A with the expansion control zone of the indication of the resource allocation information in the PDCCH data of the said vUE that decodes.
The system of expansion physical layer control channel resource quantity is described below in a kind of mobile communication of the present invention.
Virtual terminal vUE is assigned Radio Network Temporary Identifier RNTI; The RNTI of said distribution is extended wireless network temporary mark Z-RNTI; Each vUE has the corresponding expansion control zone and the terminal eUE of the support expanded of correspondence, with said vUE ordering, disposes said Z-RNTI among the eUE.
Said system comprises the base station, ordinary terminal tUE, and eUE.
Said base station comprises:
Expansion control region allocation module is used for extracting first vUE by ordering from vUE, and said first vUE is the vUE when pre-treatment; Scheduling resource is distributed to when the corresponding expansion control zone of the vUE of pre-treatment from the idling-resource of the data area of subframe; If when the vUE of pre-treatment for ordering in last vUE, the physical layer descending control channel PDCCH that then will work as the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control zone, startup mapping block; Otherwise, extract next vUE by ordering, be mapped to said expansion control zone with the PDCCH of said next vUE with as the PDCCH of the corresponding eUE of the vUE of pre-treatment, be vUE with said next vUE, the duplicate allocation operation when pre-treatment;
Mapping block is used for the PDCCH of tUE and said first vUE is mapped to the control area of said subframe;
Transport module; Be used in said Z-RNTI corresponding search space, selecting to use on the corresponding PDCCH channel said Z-RNTI to transmit the PDCCH data of said vUE for each vUE; Comprise the resource allocation information of the resource that the corresponding expansion control zone of the said vUE of indication takies in the PDCCH data of said vUE, use the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of said eUE to transmit the PDCCH data of said eUE for each eUE;
EUE is used for decoding by Z-RNTI the PDCCH data of said first vUE, and the expansion control zone of the resource allocation information indication in the PDCCH data of said first vUE is that the expansion control of current decoding is regional; C-RNTI by said eUE in the search volume in the expansion control of current decoding zone detects PDCCH; And in the search volume in the expansion control of said current decoding zone, press the decode PDCCH data of vUE of Z-RNTI; If pressing Z-RNTI decodes successfully; Then the expansion control zone with the indication of the resource allocation information in the PDCCH data of the said vUE that decodes is the expansion control space of current decoding, the repeat decoding operation, otherwise; Confirm the extending space distribution end of base station, end operation to vUE.
Wherein, Z-RNTI be reserved value or base station among the RNTI through signaling with preset Z-RNTI value notice to eUE.
In a preferred implementation; Said eUE also is used for when decoding physical layer descending shared channel PDSCH; Judge whether comprise the resource that expansion control zone that said eUE decodes takies in the resource that said PDSCH takies, if comprise then the resource that the said expansion control zone that comprises takies is got rid of from the resource that said PDSCH takies.
In a preferred implementation, each expansion control zone has corresponding transmission means, also comprises the information of the transmission means of using in the corresponding expansion control zone of the said vUE of indication in the PDCCH data of said vUE.
Said transport module is further used for using Z-RNTI to transmit the PDCCH data of said vUE for first vUE; For each vUE except that first vUE, use the transmission means in the expansion control zone that Z-RNTI is mapped to by the PDCCH of said vUE to transmit the PDCCH data of said vUE; For each eUE, the transmission means in the expansion control zone that the C-RNTI that uses said eUE is mapped to by the PDCCH of said eUE is transmitted the PDCCH data of said eUE.
Said eUE is further used for detecting PDCCH according to transmission means C-RNTI by said eUE in said search volume in the expansion control zone of current decoding when in the search volume in the expansion control of current decoding zone, detecting PDCCH by the C-RNTI of said eUE.
Said eUE is being further used for transmission means according to the expansion control zone of the current decoding PDCCH data by Z-RNTI decoding vUE in said search volume during by the PDCCH data of Z-RNTI decoding vUE in the search volume in the expansion control of current decoding zone.
In a preferred implementation, said expansion control region allocation module is equal to said eUE with the PDCCH of next vUE with when the PDCCH of the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control zone with said next vUE.
In a preferred implementation, when said transport module is mapped to the control area of subframe at the PDCCH with tUE and first vUE, said first vUE is equal to tUE.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.
Claims (12)
1. the method for expansion physical layer control channel resource quantity in the mobile communication is characterized in that said method comprises:
Step 1; For virtual terminal vUE distributes Radio Network Temporary Identifier RNTI, the RNTI of said distribution is extended wireless network temporary mark Z-RNTI, and each vUE has the corresponding expansion control zone and the terminal eUE of the support expanded of correspondence; With said vUE ordering, has said Z-RNTI among the eUE;
Step 2, first vUE is extracted by ordering in the base station from vUE, and said first vUE is the vUE when pre-treatment;
Step 3, base station scheduling resource from the idling-resource of the data area of subframe is distributed to when the corresponding expansion control zone of the vUE of pre-treatment; If when the vUE of pre-treatment for ordering in last vUE, it is regional that the physical layer descending control channel PDCCH that then will work as the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control, execution in step 4; Otherwise, extract next vUE by ordering, be mapped to said expansion control zone with the PDCCH of said next vUE with as the PDCCH of the corresponding eUE of the vUE of pre-treatment, be the vUE when pre-treatment, repeated execution of steps 3 with said next vUE;
Step 4, base station are mapped to the PDCCH of ordinary terminal tUE and said first vUE the control area of said subframe;
Step 5; The base station selects to use on the corresponding PDCCH channel said Z-RNTI to transmit the PDCCH data of said vUE in said Z-RNTI corresponding search space for each vUE; Comprise the resource allocation information of the resource that the corresponding expansion control zone of the said vUE of indication takies in the PDCCH data of said vUE, use the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of said eUE to transmit the PDCCH data of said eUE for each eUE;
Step 6, eUE decodes the PDCCH data of said first vUE by Z-RNTI, and the expansion control zone of the resource allocation information indication in the PDCCH data of said first vUE is that the expansion control of current decoding is regional;
Step 7; EUE C-RNTI by said eUE in the search volume in the expansion control zone of current decoding detects PDCCH; And in the search volume in the expansion control of said current decoding zone, press the PDCCH data of Z-RNTI decoding vUE, decode successfully if press Z-RNTI, the expansion control of then indicating with the resource allocation information in the PDCCH data of the said vUE that decodes is regional to be the expansion control space of current decoding; Repeated execution of steps 7; Otherwise, confirm the expansion control allocation of space end of base station to vUE, step 7 finishes.
2. the method for expansion physical layer control channel resource quantity is characterized in that in the mobile communication according to claim 1,
Said Z-RNTI is that reserved value or the base station among the RNTI given eUE through signaling with preset Z-RNTI value notice.
3. the method for expansion physical layer control channel resource quantity is characterized in that in the mobile communication according to claim 1,
In the said step 3 further do with the PDCCH of next vUE with when the PDCCH of the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control zone,
Step 31, the base station is equal to said eUE with the PDCCH of next vUE with when the PDCCH of the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control zone with said next vUE.
4. the method for expansion physical layer control channel resource quantity is characterized in that in the mobile communication according to claim 1,
Said step 4 further does,
When step 41, base station are mapped to the control area of subframe at the PDCCH with tUE and first vUE, said first vUE is equal to tUE.
5. the method for expansion physical layer control channel resource quantity is characterized in that in the mobile communication according to claim 1,
Said method also comprises:
Step 51; EUE is when decoding physical layer descending shared channel PDSCH; Judge whether comprise the resource that expansion control zone that said eUE decodes takies in the resource that said PDSCH takies, if comprise then the resource that the said expansion control zone that comprises takies is got rid of from the resource that said PDSCH takies.
6. the method for expansion physical layer control channel resource quantity is characterized in that in the mobile communication according to claim 1,
Each expansion control zone has corresponding transmission means, also comprises the information of the transmission means of using in the corresponding expansion control zone of the said vUE of indication in the PDCCH data of said vUE;
Said step 5 further does,
Step 61, the base station uses Z-RNTI to transmit the PDCCH data of said vUE for first vUE;
Step 62, base station be for each vUE except that first vUE, uses the transmission means in the expansion control zone that Z-RNTI is mapped to by the PDCCH of said vUE to transmit the PDCCH data of said vUE;
Step 63, base station be for each eUE, and the transmission means in the expansion control zone that the C-RNTI that uses said eUE is mapped to by the PDCCH of said eUE is transmitted the PDCCH data of said eUE;
EUE C-RNTI detection PDCCH by said eUE in the search volume in the expansion control zone of current decoding further does in the said step 7
Step 64, eUE detects PDCCH according to transmission means C-RNTI by said eUE in said search volume in the expansion control zone of current decoding;
Described in the said step 7 in the search volume in the expansion control of current decoding zone the PDCCH data by Z-RNTI decoding vUE further do
Step 65, eUE presses Z-RNTI decoding vUE according to the transmission means in the expansion control zone of current decoding in said search volume PDCCH data.
7. the system of expansion physical layer control channel resource quantity in the mobile communication is characterized in that,
Virtual terminal vUE is assigned Radio Network Temporary Identifier RNTI; The RNTI of said distribution is extended wireless network temporary mark Z-RNTI; Each vUE has the corresponding expansion control zone and the terminal eUE of the support expanded of correspondence, with said vUE ordering, has said Z-RNTI among the eUE;
Said system comprises the base station, ordinary terminal tUE, and eUE,
Said base station comprises:
Expansion control region allocation module is used for extracting first vUE by ordering from vUE, and said first vUE is the vUE when pre-treatment; Scheduling resource is distributed to when the corresponding expansion control zone of the vUE of pre-treatment from the idling-resource of the data area of subframe; If when the vUE of pre-treatment for ordering in last vUE, the physical layer descending control channel PDCCH that then will work as the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control zone, startup mapping block; Otherwise, extract next vUE by ordering, be mapped to said expansion control zone with the PDCCH of said next vUE with as the PDCCH of the corresponding eUE of the vUE of pre-treatment, be vUE with said next vUE, the duplicate allocation operation when pre-treatment;
Mapping block is used for the PDCCH of tUE and said first vUE is mapped to the control area of said subframe;
Transport module; Be used in said Z-RNTI corresponding search space, selecting to use on the corresponding PDCCH channel said Z-RNTI to transmit the PDCCH data of said vUE for each vUE; Comprise the resource allocation information of the resource that the corresponding expansion control zone of the said vUE of indication takies in the PDCCH data of said vUE, use the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of said eUE to transmit the PDCCH data of said eUE for each eUE;
EUE is used for decoding by Z-RNTI the PDCCH data of said first vUE, and the expansion control zone of the resource allocation information indication in the PDCCH data of said first vUE is that the expansion control of current decoding is regional; C-RNTI by said eUE in the search volume in the expansion control of current decoding zone detects PDCCH; And in the search volume in the expansion control of said current decoding zone, press the decode PDCCH data of vUE of Z-RNTI; If pressing Z-RNTI decodes successfully; Then the expansion control zone with the indication of the resource allocation information in the PDCCH data of the said vUE that decodes is the expansion control space of current decoding, the repeat decoding operation, otherwise; Confirm the extending space distribution end of base station, end operation to vUE.
8. the system of expansion physical layer control channel resource quantity is characterized in that in the mobile communication according to claim 7,
Said eUE also is used for when decoding physical layer descending shared channel PDSCH; Judge whether comprise the resource that expansion control zone that said eUE decodes takies in the resource that said PDSCH takies, if comprise then the resource that the said expansion control zone that comprises takies is got rid of from the resource that said PDSCH takies.
9. the system of expansion physical layer control channel resource quantity is characterized in that in the mobile communication according to claim 7,
Each expansion control zone has corresponding transmission means, also comprises the information of the transmission means of using in the corresponding expansion control zone of the said vUE of indication in the PDCCH data of said vUE;
Said transport module is further used for using Z-RNTI to transmit the PDCCH data of said vUE for first vUE; For each vUE except that first vUE, use the transmission means in the expansion control zone that Z-RNTI is mapped to by the PDCCH of said vUE to transmit the PDCCH data of said vUE; For each eUE, the transmission means in the expansion control zone that the C-RNTI that uses said eUE is mapped to by the PDCCH of said eUE is transmitted the PDCCH data of said eUE;
Said eUE is further used for detecting PDCCH according to transmission means C-RNTI by said eUE in said search volume in the expansion control zone of current decoding when in the search volume in the expansion control of current decoding zone, detecting PDCCH by the C-RNTI of said eUE;
Said eUE is being further used for transmission means according to the expansion control zone of the current decoding PDCCH data by Z-RNTI decoding vUE in said search volume during by the PDCCH data of Z-RNTI decoding vUE in the search volume in the expansion control of current decoding zone.
10. the system of expansion physical layer control channel resource quantity is characterized in that in the mobile communication according to claim 7,
Said expansion control region allocation module is equal to said eUE with the PDCCH of next vUE with when the PDCCH of the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control zone with said next vUE.
11. the system of expansion physical layer control channel resource quantity is characterized in that in the mobile communication according to claim 7,
When said transport module is mapped to the control area of subframe at the PDCCH with tUE and first vUE, said first vUE is equal to tUE.
12. the method for expansion physical layer control channel resource quantity in the mobile communication is characterized in that said method comprises:
Step 1; For virtual terminal vUE distributes Radio Network Temporary Identifier RNTI; The RNTI of said distribution is extended wireless network temporary mark Z-RNTI, and each vUE has the corresponding expansion control zone and the terminal eUE of the support expanded of correspondence, with said vUE ordering; Have said Z-RNTI among the eUE, the same vUE of each eUE is corresponding;
Step 2, first vUE is extracted by ordering in the base station from vUE, and said first vUE is the vUE when pre-treatment;
Step 3, base station scheduling resource from the idling-resource of the data area of subframe is distributed to when the corresponding expansion control zone of the vUE of pre-treatment; If when the vUE of pre-treatment for ordering in last vUE, it is regional that the physical layer descending control channel PDCCH that then will work as the corresponding eUE of the vUE of pre-treatment is mapped to said expansion control, execution in step 4; Otherwise, extract next vUE by ordering, be mapped to said expansion control zone with the PDCCH of said next vUE with as the PDCCH of the corresponding eUE of the vUE of pre-treatment, be the vUE when pre-treatment, repeated execution of steps 3 with said next vUE;
Step 4, base station are mapped to the PDCCH of ordinary terminal tUE and said first vUE the control area of said subframe;
Step 5; The base station selects to use on the corresponding PDCCH channel said Z-RNTI to transmit the PDCCH data of said vUE in said Z-RNTI corresponding search space for each vUE; Comprise the resource allocation information of the resource that the corresponding expansion control zone of the said vUE of indication takies in the PDCCH data of said vUE, use the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of said eUE to transmit the PDCCH data of said eUE for each eUE;
Step 6, eUE decodes the PDCCH data of said first vUE by Z-RNTI, and the expansion control zone of the resource allocation information indication in the PDCCH data of said first vUE is that the expansion control of current decoding is regional;
Step 7; EUE C-RNTI by said eUE in the search volume in the expansion control zone of current decoding detects PDCCH; And in the search volume in the expansion control of said current decoding zone, press the decode PDCCH data of vUE of Z-RNTI; If detect PDCCH by C-RNTI, then step 7 finishes; Otherwise, be the expansion control space of current decoding, repeated execution of steps 7 with the expansion control zone of the indication of the resource allocation information in the PDCCH data of the said vUE that decodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110340388.6A CN102395204B (en) | 2011-11-01 | 2011-11-01 | Method and system for increasing quantity of physical layer control channel resource in mobile communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110340388.6A CN102395204B (en) | 2011-11-01 | 2011-11-01 | Method and system for increasing quantity of physical layer control channel resource in mobile communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102395204A true CN102395204A (en) | 2012-03-28 |
| CN102395204B CN102395204B (en) | 2014-07-02 |
Family
ID=45862384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110340388.6A Active CN102395204B (en) | 2011-11-01 | 2011-11-01 | Method and system for increasing quantity of physical layer control channel resource in mobile communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102395204B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391563A (en) * | 2012-05-11 | 2013-11-13 | 中兴通讯股份有限公司 | Downlink control information transmission method and detection method, base station and user equipment |
| WO2013166904A1 (en) * | 2012-07-31 | 2013-11-14 | 中兴通讯股份有限公司 | Dmrs processing method and device |
| CN103517431A (en) * | 2012-06-28 | 2014-01-15 | 夏普株式会社 | Enhanced physical down link control channel resource allocation method |
| CN104272846A (en) * | 2012-05-09 | 2015-01-07 | 联发科技股份有限公司 | Method for resource multiplexing of distributed and localized transmission in enhanced physical downlink control channel |
| CN104584460A (en) * | 2012-08-11 | 2015-04-29 | Lg电子株式会社 | Method and device for receiving down-link control channel in wireless communication system |
| CN104798425A (en) * | 2012-09-28 | 2015-07-22 | 瑞典爱立信有限公司 | Methods, network nodes and user equipments in a wireless network for communicating an EPDCCH |
| WO2018171425A1 (en) * | 2017-03-24 | 2018-09-27 | 电信科学技术研究院有限公司 | Methods and devices for determining downlink resource set and sending resource position information |
| CN108934068A (en) * | 2017-05-23 | 2018-12-04 | 中国移动通信有限公司研究院 | A kind of method of resource distribution instruction, terminal and base station |
| CN109039562A (en) * | 2012-04-02 | 2018-12-18 | Lg 电子株式会社 | For sending and receiving the method and its equipment of EPDCCH |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867880A (en) * | 2009-04-14 | 2010-10-20 | 中兴通讯股份有限公司 | Method and device for bearing and receiving control information of MCCH (Multipoint Control Channel) and MCCH updating indication information |
| WO2010129605A1 (en) * | 2009-05-04 | 2010-11-11 | Qualcomm Incorporated | Data and control multiplexing in wireless communications |
| WO2011100326A1 (en) * | 2010-02-10 | 2011-08-18 | Qualcomm Incorporated | Multi-user control channel assignment |
| CN102170703A (en) * | 2011-05-11 | 2011-08-31 | 电信科学技术研究院 | Method for receiving and transmitting information on physical downlink control channel and equipment thereof |
| CN102202400A (en) * | 2011-05-31 | 2011-09-28 | 电信科学技术研究院 | Instruction and processing method and device for resource occupancy mode |
-
2011
- 2011-11-01 CN CN201110340388.6A patent/CN102395204B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867880A (en) * | 2009-04-14 | 2010-10-20 | 中兴通讯股份有限公司 | Method and device for bearing and receiving control information of MCCH (Multipoint Control Channel) and MCCH updating indication information |
| WO2010129605A1 (en) * | 2009-05-04 | 2010-11-11 | Qualcomm Incorporated | Data and control multiplexing in wireless communications |
| WO2011100326A1 (en) * | 2010-02-10 | 2011-08-18 | Qualcomm Incorporated | Multi-user control channel assignment |
| CN102170703A (en) * | 2011-05-11 | 2011-08-31 | 电信科学技术研究院 | Method for receiving and transmitting information on physical downlink control channel and equipment thereof |
| CN102202400A (en) * | 2011-05-31 | 2011-09-28 | 电信科学技术研究院 | Instruction and processing method and device for resource occupancy mode |
Non-Patent Citations (2)
| Title |
|---|
| LG ELECTRONICS: "TSG-RAN WG1 Meeting #65 R1-111793", 《TSG-RAN WG1 MEETING #65 R1-111793》 * |
| MOTOROLA MOBILITY: "3GPP TSG RAN WG1 #66bis R1-113261", 《3GPP TSG RAN WG1 #66BIS R1-113261》 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109039562B (en) * | 2012-04-02 | 2021-03-02 | Lg 电子株式会社 | Method for transmitting and receiving EPDCCH and apparatus therefor |
| CN109039562A (en) * | 2012-04-02 | 2018-12-18 | Lg 电子株式会社 | For sending and receiving the method and its equipment of EPDCCH |
| CN104272846A (en) * | 2012-05-09 | 2015-01-07 | 联发科技股份有限公司 | Method for resource multiplexing of distributed and localized transmission in enhanced physical downlink control channel |
| CN103391563B (en) * | 2012-05-11 | 2018-06-08 | 中兴通讯股份有限公司 | Downlink control information sending method, detection method, base station and user equipment |
| CN103391563A (en) * | 2012-05-11 | 2013-11-13 | 中兴通讯股份有限公司 | Downlink control information transmission method and detection method, base station and user equipment |
| CN103517431A (en) * | 2012-06-28 | 2014-01-15 | 夏普株式会社 | Enhanced physical down link control channel resource allocation method |
| WO2013166904A1 (en) * | 2012-07-31 | 2013-11-14 | 中兴通讯股份有限公司 | Dmrs processing method and device |
| CN103580790A (en) * | 2012-07-31 | 2014-02-12 | 中兴通讯股份有限公司 | DMRS processing method and device |
| CN104584460A (en) * | 2012-08-11 | 2015-04-29 | Lg电子株式会社 | Method and device for receiving down-link control channel in wireless communication system |
| CN104798425B (en) * | 2012-09-28 | 2019-03-12 | 瑞典爱立信有限公司 | In the wireless network for transmitting method, network node and the user equipment of EPDCCH |
| CN104798425A (en) * | 2012-09-28 | 2015-07-22 | 瑞典爱立信有限公司 | Methods, network nodes and user equipments in a wireless network for communicating an EPDCCH |
| WO2018171425A1 (en) * | 2017-03-24 | 2018-09-27 | 电信科学技术研究院有限公司 | Methods and devices for determining downlink resource set and sending resource position information |
| TWI672963B (en) * | 2017-03-24 | 2019-09-21 | 大陸商電信科學技術研究院有限公司 | Determination of downlink resource set, method and device for transmitting resource location information |
| US11202294B2 (en) | 2017-03-24 | 2021-12-14 | Datang Mobile Communications Equipment Co., Ltd. | Methods and devices for determining downlink resource set and sending resource position information |
| CN108934068A (en) * | 2017-05-23 | 2018-12-04 | 中国移动通信有限公司研究院 | A kind of method of resource distribution instruction, terminal and base station |
| CN108934068B (en) * | 2017-05-23 | 2022-03-08 | 中国移动通信有限公司研究院 | Resource allocation indication method, terminal and base station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102395204B (en) | 2014-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10659939B2 (en) | Telecommunications apparatus and methods | |
| CN102395204B (en) | Method and system for increasing quantity of physical layer control channel resource in mobile communication | |
| US10667289B2 (en) | Mobile communications network, communications device and methods | |
| US10986633B2 (en) | Mobile communications network, communications device and methods | |
| US11310798B2 (en) | Measurement method and apparatus for supporting mobility in communication system | |
| CN102395205B (en) | Method and system for increasing quantity of physical layer control channel resource | |
| KR102146368B1 (en) | Communications device and method | |
| WO2018074068A1 (en) | Base station device, terminal device and communication method | |
| JP2017011709A (en) | Inserting virtual carrier in conventional ofdm host carrier in communications system | |
| CN102595604B (en) | Method and system for transmitting control information from base station to terminal | |
| CN105451155B (en) | Channel and signal transmission method, corresponding terminal and base station | |
| CN104144502A (en) | Physical downlink control information acquisition method, device, terminal and system | |
| CN107736065A (en) | A kind of resource allocation information indicating means, base station and user equipment | |
| CN102014509B (en) | Method and device for feeding back channel information by scheduling terminal | |
| GB2508595A (en) | A group-based PDCCH capability for machine type communication (MTC) devices | |
| CN102595605B (en) | Method and system for controlling number of channel resources by using virtual terminal expanded physical layer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170906 Address after: 100070, No. 188, building 25, No. eighteen, South Fourth Ring Road, Fengtai District, Beijing, 1, 101 Patentee after: Beijing Haiyun Technology Co. Ltd. Address before: 510663, No. 3, color road, Science City, Guangzhou Development Zone, Guangdong Patentee before: New Post Communication Equipment Co., Ltd. |