CN102595605A

CN102595605A - Method and system for controlling number of channel resources by using virtual terminal expanded physical layer

Info

Publication number: CN102595605A
Application number: CN2012100185193A
Authority: CN
Inventors: 仲川; 刘红梅; 卫瑞平; 商志平; 赵训威
Original assignee: New Postcom Equipment Co Ltd
Current assignee: Shenyang Liansheng Technology Co., Ltd.
Priority date: 2012-01-18
Filing date: 2012-01-18
Publication date: 2012-07-18
Anticipated expiration: 2032-01-18
Also published as: CN102595605B

Abstract

The invention discloses a method and a system for controlling the number of channel resources by using a virtual terminal expanded physical layer. The method comprises the following steps that: 1, a Z radio network temporary identifier (Z-RNTI) is distributed to virtual user equipment (vUE), wherein expanded user equipment (eUE) has the Z-RNTI and corresponds to an expansion control zone; 2, resources are called from a base station area to be distributed to a plurality of expansion control zones, and a physical downlink control channel (PDCCH) of the eUE is mapped to a corresponding expansion control zone; 3, the PDCCH of the vUE is mapped to a control area of a subframe through a base station; 4, PDCCH data of the vUE in the control area is transmitted through the base station by using the Z-RNTI, and by using a cell radio network temporary identifier (C-RNTI) of the eUE, the PDCCH data of the eUE is transmitted to the expansion control zone into which the PDCCH of the eUE is mapped; and 5, the eUE decodes the PDCCH data of the vUE in a search space of the control area of the subframe of the eUE according to the Z-RNTI, and detects the PDCCH according to the C-RNTI of the eUE in the search space of the expansion control zone according to resource distribution information in the PDCCH data. The problem that the decoding pressure of a terminal is too high is solved.

Description

Utilize the method and system of virtual terminal expansion physical layer control channel resource quantity

Technical field

The present invention relates to the communications field, particularly utilize the method and system of virtual terminal expansion physical layer control channel resource quantity to use.

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.

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 (Physical Downlink Shared Channel) 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, designed multiple DCI (Downlink Control Information, Downlink Control Information) form; 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 10ms 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 TS36.211 support and the PDCCH number of candidates of support in table 3, have been defined, PDCCH search volume and corresponding PDCCH option (3GPP TS 26.2139.1.1 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 RAN1#meeting 67 (meeting of 3GPP), be numbered and described a kind of method of utilizing Virtual User dynamic chain type in the PDSCH zone to open up the expansion control zone in the discussion paper of R1-113691, as shown in Figure 4,

In the method; Be that a non-existent UE has distributed a Z-RNTI who represents this UE; And arrange this Virtual User vUE in traditional PD CCH zone, to carry DCI message according to traditional P DCCH transmission method; Through definition again, be used to indicate positional information and transmission means and some additional informations in the expansion control zone (ePDCCH zone) of newly opening up at the bit of the carrying of this DCI message.As shown in table 4.

Table 4

Provide the example that a DCI information remaps in the table 4.In this table, the definition of some information.

EPDCCH/enhaced PDCCH indication: being used to indicate the expansion control zone of newly opening up is to point to the PDSCH zone or point to traditional PD CCH zone,

Work_mode bits: be used to indicate the regional transmission means that is adopted of the expansion control of newly opening up.

EPDCCH time domain indication: the time-domain symbol information that is used to indicate the expansion control zone of newly opening up

EPDCCH frequency domain indicaition: the frequency domain PRB information that is used to indicate the expansion control zone of newly opening up.

CIF: be used to indicate the carrier wave sequence number of striding carrier dispatching.

Through the definition again of the DCI information of carrying, that can on the subframe rank, realize dynamic multi-mode opens up the expansion control zone, as shown in Figure 5.

In order to guarantee the normal operation of this cover mechanism, need certain restrictive condition:

Base station side when opening up new expansion control zone at every turn; Need guarantee it is in the PDSCH zone that also is not assigned with, and the terminal need be removed by regional overlapping RE partly with the PDSCH that distributes to it the expansion control that it solves in decoding PDSCH.

For this chain type working method, when chain was long more, the expansion control area information of level will depend on the correct decoding of the expansion control area information of chain leading portion thereafter; Therefore its combined decoding accuracy can reduce along with the lengthening of chain; And in addition on the one hand, simultaneously along with the lengthening of chain, the terminal of chain rear side increases the corresponding PDCCH decoding time delay in expansion control zone naturally; Thereby reduced the decode time of PDSCH, strengthened the decoding pressure at terminal.

Summary of the invention

The method and system that utilizes virtual terminal expansion physical layer control channel resource quantity provided by the invention is to solve the excessive problem of decoding pressure at terminal.

The invention discloses a kind of method of utilizing virtual terminal expansion physical layer control channel resource quantity, 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, has said Z-RNTI among the terminal eUE of support expanded, eUE is corresponding with the expansion control zone;

Step 2, base station are transferred resource allocation and are given a plurality of expansion control zone from the idling-resource of the data area of subframe, the physical layer descending control channel PDCCH of eUE is mapped to the expansion control zone of correspondence;

Step 3, base station are mapped to the PDCCH of vUE the control area of subframe;

Step 4; The PDCCH data of Z-RNTI at the control area of said subframe transmission vUE are used in the base station; The PDCCH data of the said eUE of expansion control zone transmission that the resource allocation information that comprises the resource that indication said a plurality of expansion control zone takies in the PDCCH data of said vUE, the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI that uses eUE are mapped at said eUE;

Step 5, eUE decodes the PDCCH data of said vUE by Z-RNTI in the search volume of the control area of said subframe, and the C-RNTI by said eUE in the search volume in expansion control zone detects PDCCH according to the said resource allocation information in the PDCCH data.

Wherein, said step 1 also comprises:

Step 21, the tree of configuration reflection expansion control regional relation is the root node of tree with the control area of subframe; With said a plurality of expansion control zone is the child node of said root node;

Said step 2 also comprises:

Step 22, base station are transferred the expansion control zone that the node except that the child node of root node in the tree is given in resource allocation from the idling-resource of the data area of subframe, the corresponding PDCCH in expansion control zone of child node is mapped to the expansion control zone of father node;

The resource allocation information that comprises the resource that indication said a plurality of expansion control zone takies in the PDCCH data of said vUE further takies the resource allocation information of resource for the expansion control zone that comprises the child node of indicating root node in the PDCCH data of said vUE;

Said step 4 also comprises:

Step 23; The base station uses Z-RNTI in the expansion control zone of father node, transmit the corresponding PDCCH data in expansion control zone of child node, comprises the resource allocation information of indicating the resource that said expansion control zone takies in the corresponding PDCCH data in expansion control zone;

Saidly in the search volume in expansion control zone, detect PDCCH according to the said resource allocation information in the PDCCH data and comprise by the C-RNTI of said eUE:

Step 24, the expansion control zone of indicating with the said resource allocation information in the PDCCH data of vUE is the expansion control zone of current decoding;

Step 25, in the search volume in the expansion control of current decoding zone by the PDCCH data of the C-RNTI decoding eUE of said eUE, by the decode corresponding PDCCH data in child node expansion control zone in expansion control zone of current decoding of Z-RNTI;

Step 26, according to decoded result, the child node expansion control zone of the resource allocation information indication in the PDCCH data of confirming to decode with Z-RNTI is the expansion control zone repeated execution of steps 25 of current decoding, perhaps eUE finishes decode operation.

Wherein, said a plurality of expansion control zone comprises female expansion control zone, and sub-expansion control zone, and said female expansion control zone is not for launching the unloaded ripple zone of data;

Said eUE and expansion control zone corresponding comprising:

Step 31, eUE is corresponding with sub-expansion control zone;

Transferring resource allocation the idling-resource of said data area from subframe comprises for a plurality of expansion control zone:

Step 32 is transferred from the idling-resource of the data area of subframe with female expansion control zone identical resource allocation of shared resource of neighbor cell and is given said female expansion control zone;

Step 33 is transferred from female expansion control zone with the shared resource time domain different resources in sub-expansion control zone of neighbor cell and is distributed to said sub-expansion control zone.

Wherein, said step 1 also comprises:

Step 41 disposes the priority in each expansion control zone;

The priority that also comprises the expansion control zone in the PDCCH data of said vUE;

Step 42, according to the said resource allocation information in the PDCCH data, the C-RNTI that in the search volume in expansion control zone, presses said eUE by the priority in expansion control zone detects PDCCH.

Wherein, also comprise between said step 2 and the said step 3:

Step 81, for each eUE, the PDSCH that said eUE is given in the resource resource allocation in addition that takies with the uncorrelated expansion control of said eUE zone is transferred in the base station from the data area of said subframe,

The expansion control zone association of the node in said eUE and the expansion control zone of the used resource of PDCCH that comprises this eUE all nodes in the path of root node;

Also comprise after the said step 5:

Step 82, eUE is in decoding during PDSCH, judges in the resource that said PDSCH takies whether comprise the resource that the related expansion control zone of said eUE takies, if comprise then the resource that the expansion control zone takies is got rid of from the resource that said PDSCH takies.

Wherein, said step 21 also comprises:

Step 91, the father node in the said tree except that root node has a node, and the chain in expansion control zone is formed in the expansion control zone of said father node and said child node;

The corresponding eUE that is specially with the expansion control zone of eUE is corresponding with the expansion control zone of chain;

Also comprise between said step 2 and the said step 3:

Step 92, base station are transferred the PDSCH that said eUE is given in resource allocation from the data area of said subframe;

Also comprise after the said step 5:

Step 93, eUE is in decoding during PDSCH, judges in the resource that said PDSCH takies whether comprise the resource that the expansion control zone takies, if comprise then the resource that the expansion control zone takies is got rid of from the resource that said PDSCH takies.

The invention also discloses a kind of system that utilizes virtual terminal expansion physical layer control channel resource quantity, comprise in the configuration: virtual terminal vUE is assigned Radio Network Temporary Identifier RNTI, and the RNTI of said distribution is extended wireless network temporary mark Z-RNTI;

Have said Z-RNTI among the terminal eUE of support expanded, eUE is corresponding with the expansion control zone;

Said system comprises: base station and eUE,

Said base station comprises:

Resource distribution module is used for transferring resource allocation from the idling-resource of the data area of subframe and gives a plurality of expansion control zone;

Mapping block is used for the physical layer descending control channel PDCCH of eUE is mapped to corresponding expansion control zone, the PDCCH of vUE is mapped to the control area of subframe;

Transport module; Be used to use the PDCCH data of Z-RNTI at the control area of said subframe transmission vUE; The PDCCH data of the said eUE of expansion control zone transmission that the resource allocation information that comprises the resource that indication said a plurality of expansion control zone takies in the PDCCH data of said vUE, the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI that uses eUE are mapped at said eUE;

EUE is used in the search volume of the control area of said subframe decoding by Z-RNTI the PDCCH data of said vUE, and the C-RNTI by said eUE in the search volume in expansion control zone detects PDCCH according to the said resource allocation information in the PDCCH data.

The beneficial effect of the embodiment of the invention is: through parallel a plurality of expansion control zone of specifying, can reduce the decoding time delay at terminal; And, further reduce the decoding time delay at terminal through priority is set; Through using the indication of female control area, further reduce the decoding time delay at terminal; Than the chain type operation of prior art, because progression is few, its transmission reliability improves relatively; Through combining, increase the flexibility of the arrangement in expansion control zone with the chain type operation; Avoided disturbing between neighbor cell through using female expansion control zone and sub-expansion control zone.

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 sketch map that the PDCCH dynamic chain type is opened up secondary expansion control zone;

Fig. 5 is the sketch map that the PDCCH dynamic chain type is opened up three grades of expansion control zones;

Fig. 6 is the flow chart that the present invention utilizes the method for virtual terminal expansion physical layer control channel resource quantity;

Fig. 7 is that the sketch map that a plurality of PDCCH position candidate are given an example is supported in the common search space in the prior art;

Fig. 8 is the sketch map that the present invention utilizes the method embodiment one of virtual terminal expansion physical layer control channel resource quantity;

Fig. 9 is the sketch map that the present invention utilizes the method embodiment two of virtual terminal expansion physical layer control channel resource quantity;

Figure 10 is the sketch map that the present invention utilizes the method embodiment three of virtual terminal expansion physical layer control channel resource quantity;

Figure 11 is the sketch map of the parallel and chain type execution mode of the inventive method;

Figure 12 is the sketch map of neighbor cell interference;

Figure 13 is the sketch map of the embodiment of avoiding neighbor cell interference of the inventive method.

Embodiment

For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.

Referring to Fig. 6, utilize the flow chart of virtual terminal expansion physical layer control channel resource quantity method for the present invention.

Said method comprises the steps.

Step S100, for virtual terminal vUE distributes Radio Network Temporary Identifier RNTI, the RNTI of distribution is extended wireless network temporary mark Z-RNTI, has this Z-RNTI among the terminal eUE of support expanded, eUE is corresponding with the expansion control zone.

Step S200, the base station is transferred resource allocation and is given a plurality of expansion control zone from the idling-resource of the data area of subframe, the physical layer descending control channel PDCCH of eUE is mapped to the expansion control zone of correspondence.

Step S300, the base station is mapped to the PDCCH of vUE the control area of subframe.

Step S400; The PDCCH data of Z-RNTI at the control area of subframe transmission vUE are used in the base station; The PDCCH data of this eUE of expansion control zone transmission that the resource allocation information that comprises the resource that indication said a plurality of expansion control zone takies in the PDCCH data of vUE, the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI that uses eUE are mapped at said eUE.

Step S500, eUE decode the PDCCH data of this vUE by Z-RNTI in the search volume of the control area of subframe, the C-RNTI by this eUE in the search volume in expansion control zone detects PDCCH according to the resource allocation information in the PDCCH data.

In a search volume, a plurality of PDCCH position candidate can be arranged, PDCCH can one or more going up therein be selected to send in the base station.Described in the various possible corresponding relation of supporting in the standard now such as the table 3 of background technology, represented a example among Fig. 7, the situation of respectively corresponding two kinds of various polymerization sizes in the common search space.Accordingly, blind Detecting need be carried out in the terminal in these possible PDCCH candidates, when the corresponding DCI information that obtained is thought in the decoding CRC check correct the time.

Wherein, embodiment one is said as follows.

Said step S100 specifically is included as vUE and distributes a plurality of different Z-RNTI, has all Z-RNTI among the eUE, and eUE is corresponding with the expansion control zone.

Said base station uses Z-RNTI specifically to comprise the PDCCH data of use each Z-RNTI in base station at the search volume of this Z-RNTI of the control area of subframe transmission vUE in the PDCCH data of the control area of subframe transmission vUE.

The resource allocation information that comprises the resource that part expansion control zone takies in the said a plurality of expansion control of the indication zone in the PDCCH data of the search volume transmission vUE of each Z-RNTI.The resource allocation information that comprises the resource that the said a plurality of expansion control of indication zone takies in the PDCCH data of the search volume of all Z-RNTI transmission vUE.

Said eUE comprises specifically that by the PDCCH data that Z-RNTI decodes this vUE eUE decodes the PDCCH data of vUE by this Z-RNTI in the search volume of each Z-RNTI of the control area of subframe in the search volume of the control area of subframe.

Adopt this kind method, in the PDCCH data of a plurality of search volume transmission vUE, corresponding a plurality of search volumes, the i.e. search volume of each Z-RNTI detected of eUE.

Referring to Fig. 8, utilize the sketch map of the method embodiment one of virtual terminal expansion physical layer control channel resource quantity for the present invention.Wherein vUE has two different Z-RNTI, and the PDCCH data of transmitting vUE in the plain space are respectively searched at these two in corresponding two search volumes.The resource allocation information that comprises the resource that indication expansion control zone 1 takies in the PDCCH data that is searched in the plain space transmission vUE; Another searches in the plain space resource allocation information that comprises the resource that indication expansion control zone 2 takies in the PDCCH data of transmission vUE.Two search volumes of the corresponding detection of eUE to decode the PDCCH data of vUE, obtain the resource allocation information that indication expansion control zone takies resource.The PDCCH data comprise DCI, form among the DCI are defined again, with the resource of indicating the expansion control zone to take.

Wherein, embodiment two is described below.

Said step S100 specifically comprises vUE of configuration, for this vUE distributes a Z-RNTI, has this Z-RNTI among the eUE, and eUE is corresponding with the expansion control zone.

Said base station uses Z-RNTI specifically to comprise the data of Z-RNTI a plurality of PDCCH of this vUE of parallel transmission in the search volume of this Z-RNTI of the control area of subframe of base station use vUE in the PDCCH data of the control area of subframe transmission vUE.

Said eUE comprises specifically that by the PDCCH data that Z-RNTI decodes this vUE eUE decodes a plurality of PDCCH data of this vUE by this Z-RNTI in the search volume of the Z-RNTI of the control area of subframe in the search volume of the control area of subframe.

Referring to Fig. 9, utilize the sketch map of the method embodiment two of virtual terminal expansion physical layer control channel resource quantity for the present invention.As shown in Figure 7, in the search volume a plurality of PDCCH position candidate can be arranged, utilize this a plurality of PDCCH position candidate, the data of a plurality of PDCCH of this vUE of parallel transmission.EUE detects a search volume, obtains the DCI that transmits among each PDCCH.Form among the DCI is defined again, with the resource of indicating the expansion control zone to take.

Wherein, embodiment three is described below.

Said step S100 specifically comprises vUE of configuration, for said vUE distributes a Z-RNTI, has this Z-RNTI among the eUE, and eUE is corresponding with the expansion control zone.

Said base station uses Z-RNTI to comprise specifically that in the PDCCH data of the control area of subframe transmission vUE the Z-RNTI of base station use vUE transmits the PDCCH data of said vUE in the search volume of the said Z-RNTI of the control area of subframe.

Said eUE comprises specifically that by the PDCCH data that Z-RNTI decodes this vUE eUE decodes the PDCCH data of vUE by this Z-RNTI in the search volume of the Z-RNTI of the control area of subframe in the search volume of the control area of subframe.

Referring to Figure 10, utilize the sketch map of the method embodiment three of virtual terminal expansion physical layer control channel resource quantity for the present invention.Wherein, comprise DCI in the PDCCH data of vUE, DCI is defined again, the resource of indicating this a plurality of expansion control zone to take.After eUE uses Z-RNTI that the PDCCH data decode of vUE is accomplished, the indication of the resource that the said a plurality of expansion control of disposable acquisition zone takies.

One preferred implementation is described below.

When eUE obtains a plurality of expansion control zone through the blind Detecting in the vUE search volume, can use C-RNTI in a plurality of expansion control zone, to detect, obtain the PDCCH data of correspondence oneself.But may cause the blind Detecting number to roll up like this; EUE burden for partial decoding of h is limited in one's ability is too heavy; Again definitional part bit in the DCI bit that therefore can carry at the PDCCH of Z-RNTI; The priority that shows each expansion control zone is according to expansion control zone different severity level or the regional priority of purposes configuration expansion control.EUE preferentially detects other expansion control zone of corresponding high priority.

Said step S100 also comprises the priority in each expansion control zone of configuration.

The priority that also comprises the expansion control zone in the PDCCH data of said vUE.

Saidly in the search volume in expansion control zone, detect PDCCH according to the said resource allocation information in the PDCCH data and specifically comprise, detect PDCCH by priority C-RNTI by said eUE in the search volume in expansion control zone in expansion control zone according to the said resource allocation information in the PDCCH data by the C-RNTI of said eUE.

Particularly, the C-RNTI that eUE presses eUE detects PDCCH in priority greater than the expansion control zone of preset priority, if do not detect, then the C-RNTI by eUE detects PDCCH in the expansion control zone that priority is less than or equal to preset priority.

One preferred implementation is described below.

Transmission PDCCH data in the part expansion control zone in a plurality of expansion control zone; Part expansion control zone is used for other purposes, does not wherein transmit the PDCCH data.

Said PDCCH data comprise that also indication expansion control zone is the sign of dummy section;

Saidly in the search volume in expansion control zone, detect PDCCH according to the said resource allocation information in the PDCCH data and comprise by the C-RNTI of said eUE: the resource allocation information indication in the PDCCH data that Z-RNTI decodes do not detect PDCCH for the C-RNTI by said eUE in the search volume in the expansion control zone of dummy section; The positional information in said expansion control zone is write down in the expansion control zone for dummy section of the resource allocation information indication in the PDCCH data that decode for Z-RNTI.

One preferred implementation is described below.

Adopt the chain type mode, open up multistage expansion control zone.

Said step S100 also comprises: the tree of configuration reflection expansion control regional relation is the root node of tree with the control area of subframe, is the child node of said root node with said a plurality of expansion control zone.

Wherein, Root node is corresponding with the control area of subframe, and all the other nodes are corresponding with the expansion control zone, the zone that node is corresponding; This zone is control area or expansion control zone; The corresponding PDCCH data in expansion control zone of middle another node of transmission, then this node is the father node of another node, another node is the child node of this node.

It is regional to the expansion control of the node except that the child node of root node in the tree that said step S200 comprises that also resource allocation is transferred in the base station from the idling-resource of the data area of subframe, and the expansion control that the regional corresponding PDCCH of the expansion control of child node is mapped to father node is regional.

The resource allocation information that comprises the resource that indication said expansion control zone takies in the PDCCH data of said vUE further takies the resource allocation information of resource for the expansion control zone that comprises the child node of indicating root node in the PDCCH data of said vUE.

Said step S400 comprises that also the base station uses Z-RNTI in the expansion control zone of father node, transmit the corresponding PDCCH data in expansion control zone of child node, comprises the resource allocation information of the resource that the expansion control zone of indicating this child node takies in the PDCCH data of the expansion control zone correspondence of this child node.

Saidly in the search volume in expansion control zone, detect PDCCH according to the said resource allocation information in the PDCCH data and specifically comprise by the C-RNTI of said eUE:

Step S510, the expansion control zone of indicating with the resource allocation information in the PDCCH data of vUE is the expansion control zone of current decoding.

Step S520, the PDCCH data of in the search volume in the expansion control of current decoding zone, press the C-RNTI decoding eUE of eUE are by the decode PDCCH data of child node expansion control zone correspondence in expansion control zone of current decoding of Z-RNTI.

Step S530, according to decoded result, the child node expansion control zone of the resource allocation information indication in the PDCCH data that decode with Z-RNTI is the expansion control zone repeated execution of steps S520 of current decoding, perhaps eUE finishes decode operation.

Wherein, The embodiment of step S530 is to decode successfully if press C-RNTI; Then decode operation finishes; Otherwise the child node expansion control zone of the resource allocation information indication in the PDCCH data that decode with Z-RNTI is the expansion control zone of current decoding, repeated execution of steps S520.

Wherein, Another embodiment of step S530 is to decode successfully if press Z-RNTI; The expansion control zone of the resource allocation information indication in the PDCCH data that then decode with Z-RNTI is the expansion control zone of current decoding, and repeated execution of steps S520 fails if press the Z-RNTI decoding; Confirm the base station to the end of expansion control region allocation, decode operation finishes.

Referring to Figure 11, be the sketch map of the parallel and chain type execution mode of the inventive method.

Wherein, the control area of subframe is a root node, and

expansion control zone

1 and 2 is the child node of root node, and

expansion control zone

3 and 4 is the child node in expansion control zone 1.The control area of subframe is the father node in

expansion control zone

1 and 2, and expansion control zone 1 is the father node in

expansion control zone

3 and 4.

In the control area (traditional PD CCH zone) of subframe; Through transmission PDCCH data in the vUE search volume; Indicate expansion control zone 1 and expansion control zone 2, in expansion control zone 1, indicated 4 two zones in expansion control zone 3 and expansion control zone again respectively.Transmit the PDCCH data of eUE5 therein in the expansion control zone 3.EUE5 decodes the PDCCH data of vUE in the vUE search space of the control area of subframe; Obtain the resource information that takies in expansion control zone 1 and expansion control zone 2; In expansion control zone 1, decode the PDCCH data of

expansion control

3 and 4 correspondences, the resource information that takies of be expanded control area 3 and 4.So eUE5 in decoding PDSCH, can remove the resource in expansion control zone 1 and expansion control zone 3.But eUE4 on an other chain, can not guarantee therefore that eUE4 knows the resource information that takies in expansion control zone 4 corresponding to expansion control zone 2.If even the expansion control of the Z-RNTI in the control area of subframe zone 1 corresponding PDCCH data are when making a mistake, eUE4 can't know the resource information that takies in expansion control zone 1.

Use a kind of the addressing the above problem in the following mode.

Mode one comprises also between said step S200 and the said step S300 that the base station distributes to the PDSCH of eUE from the data area scheduling resource of said subframe.Wherein, the shared resource of PDSCH possibly overlap with the shared resource in expansion control zone.

Said step S530 specifically comprises if decode successfully by Z-RNTI; The expansion control zone of the resource allocation information indication in the PDCCH data that then decode with Z-RNTI is the expansion control zone of current decoding; Repeated execution of steps S530; If press Z-RNTI decoding failure, confirm the base station to the end of expansion control region allocation, decode operation finishes.

Through this step, eUE knows the information that all expansion control zones take resource.

Also comprise behind the said step S500:

Step S600A, eUE be in decoding during PDSCH, judges in the resource that said PDSCH takies whether comprise the resource that the expansion control zone takies, if comprise then the resource that the expansion control zone takies is got rid of from the resource that said PDSCH takies.

Adopt this kind method; Strengthen the eUE ability; Require all expansion control area informations of eUE decoding; This method has increased the decoding burden of end side, and still maybe be owing to decoding error on father node expansion control zone causes obtaining all complete child node expansion control area informations.

Mode two, the dispatching of reinforcement base station side, when the PDSCH transmission of eUE was arranged in the base station, used resource did not overlap with the expansion control of other side chains is regional.

Also comprise between said step S200 and the said step S300: for each eUE, the PDSCH that this eUE is given in the resource resource allocation in addition that takies with the uncorrelated expansion control of this eUE zone is transferred in the base station from the data area of said subframe.

The expansion control zone association of the node in eUE and the expansion control zone of the used resource of PDCCH that comprises this eUE all nodes in the path of root node.

The base station makes the PDSCH of eUE take resource and possibly non-intersect the folding of the shared resource in expansion control zone that can't decode its PDCCH data of eUE through above-mentioned scheduling.

For example, referring to Figure 11, expansion control zone 2 comprises the used resource of PDCCH of eUE4, thereby the expansion control of the child node of all nodes and this node of expansion control zone 2 to the path, subframe control area is regional all related with eUE4.EUE4 is related with expansion control zone 2.EUE4 and

expansion control zone

1,3 and 4 onrelevants.The resource beyond the resource that

expansion control zone

1,3 and 4 takies in the sub-frame data zone is transferred in the base station, distributes the PDSCH of this eUE4.So, guarantee not overlapping of resource that the PDSCH of eUE4 takies and

expansion control zone

1,3 and 4.

Expansion control zone 3 comprises the used resource of PDCCH of eUE5, thereby the expansion control of the child node of all nodes and this node of expansion control zone 3 to the path, subframe control area is regional related with eUE5.EUE5 is related with expansion control zone 1 and 3.EUE5 and

expansion control zone

2 and 4 onrelevants.The resource beyond the resource that

expansion control zone

2 and 4 takies in the sub-frame data zone is transferred in the base station, distributes the PDSCH of this eUE5.So, guarantee that resource that the PDSCH of eUE5 takies and

expansion control zone

2 and 4 are less than overlapping.

Also comprise behind the said step S500:

Step S600B, eUE be in decoding during PDSCH, judges in the resource that said PDSCH takies whether comprise the resource that the related expansion control zone of this eUE takies, if comprise then the resource that this expansion control zone takies is got rid of from the resource that said PDSCH takies.

For example, referring to Figure 11, eUE4 can successfully decode the corresponding PDCCH data in expansion control zone 2, thereby the resource that the expansion control zone 2 that comprises in the resource that eUE4 takies its PDSCH takies is got rid of from the resource that PDSCH takies.In this mode,

expansion control zone

1,3 and 4, the resource that takies with the PDSCH of eUE4 does not overlap.EUE5 can successfully decode the corresponding PDCCH data in

expansion control zone

1 and 3, thereby the resource that the expansion control regional 1 and 3 that comprises in the resource that eUE5 takies its PDSCH takies is got rid of from the resource that PDSCH takies.In this mode,

expansion control zone

2 and 4, the resource that takies with the PDSCH of eUE5 is overlapping not.

Mode three,

Said step S100 also comprises: the father node in the said tree except that root node has a node, and the chain in expansion control zone is formed in the expansion control area of said father node and said child node.

EUE and expansion control zone is corresponding, and to be specially in eUE and the chain expansion control regional corresponding.

Comprise also between said step S200 and the said step S300 that the base station transfers the PDSCH that said eUE is given in resource allocation from the data area of said subframe.

Also comprise behind the said step S500:

Step S600C, eUE be in decoding during PDSCH, judges in the resource that this PDSCH takies whether comprise the resource that the expansion control zone takies, if comprise then the resource that the expansion control zone takies is got rid of from the resource that this PDSCH takies.

In the method, the restriction parallel method only uses on the first order, guarantee to have only a chain type method of work at most, and other parallel blocks is used for other special purposes, and the PDSCH that does not carry out eUE distributes.Under the situation of correct decoding, can obtain the expansion control area information of whole first order in this case owing to eUE from the subframe control area, and then accomplish the deletion of the overlapping resource partly when decoding PDSCH.But under the situation of a plurality of parallel PDCCH, can also combination two, with the situation of the PDCCH decoding error that prevents part Z-RNTI.

Referring to Figure 13, be the sketch map of the embodiment of avoiding neighbor cell interference of the inventive method.

On the macrocell border or the place on macrocell Microcell border, if the data of two cell transmission possibly form strong interference each other on identical running time-frequency resource.This situation also possibly occur on the expansion control area or expansion control area and PDSCH of two sub-districts, and is shown in figure 12.

Adopt following embodiment to address the above problem.

Said a plurality of expansion control zone comprises female expansion control zone, and sub-expansion control zone.Said female expansion control zone is not for launching the unloaded ripple zone of data.

The corresponding eUE that is specially with the expansion control zone of said eUE is corresponding with sub-expansion control zone.

Transferring resource allocation the idling-resource of said data area from subframe comprises for a plurality of expansion control zone: from the idling-resource of the data area of subframe, transfer with female expansion control zone identical resource allocation of shared resource of neighbor cell and give the zone of the female expansion control in said a plurality of expansion control zone; From female expansion control zone, transfer with the shared resource time domain different resources in sub-expansion control zone of neighbor cell and distribute to the sub-expansion control zone in said a plurality of expansion control zone.

The indication information that also comprises female expansion control zone in the PDCCH data of said vUE;

Further, saidly in the search volume in expansion control zone, detect PDCCH by the C-RNTI of said eUE according to the said resource allocation information in the PDCCH data and comprise: the C-RNTI by this eUE in the search volume in sub-expansion control zone detects PDCCH according to the resource allocation information in the PDCCH data.

The base station of two sub-districts specifies one to take the same expansion control zone of resource through information interaction jointly, and this expansion control area is female expansion control area.In this mother's expansion control zone, specify different sub-expansion control zones to remove to occupy the different running time-frequency resources in female expansion control zone respectively.

So, can avoid interference between the neighbor cell.Female expansion control zone for not dispatching PDCCH indicates in the DCI information bit that carries, and the terminal can be avoided in this mother's expansion control zone, detecting in view of the above, reduces workload with the terminal.

A kind of system of virtual terminal expansion physical layer control channel resource quantity that utilizes is described below.

Comprise in the configuration that virtual terminal vUE is assigned Radio Network Temporary Identifier RNTI, the RNTI of said distribution is extended wireless network temporary mark Z-RNTI, has said Z-RNTI among the terminal eUE of support expanded, and eUE is corresponding with the expansion control zone;

Said system comprises: base station and eUE,

Said base station comprises:

Wherein, vUE is assigned a plurality of different Z-RNTI, has all Z-RNTI among the eUE, and eUE is corresponding with the expansion control zone;

Said transport module is used to use each Z-RNTI to transmit the PDCCH data of said vUE in the search volume of the said Z-RNTI of the control area of subframe when the PDCCH data of using Z-RNTI at the control area of said subframe transmission vUE;

Said eUE is used for decoding by said Z-RNTI in the search volume of each Z-RNTI of the control area of subframe the PDCCH data of vUE when decoding the PDCCH data of this vUE in the search volume of the control area of subframe by Z-RNTI.

Wherein, dispose a vUE, for said vUE distributes a Z-RNTI, have said Z-RNTI among the eUE, eUE is corresponding with the expansion control zone;

Said transport module is used to use the data of the Z-RNTI of vUE at a plurality of PDCCH of the said vUE of the search volume of the said Z-RNTI of the control area of subframe parallel transmission when the PDCCH data of using Z-RNTI at the control area of said subframe transmission vUE;

Said eUE is used for decoding by said Z-RNTI in the search volume of the Z-RNTI of the control area of subframe a plurality of PDCCH data of said vUE when decoding the PDCCH data of this vUE in the search volume of the control area of subframe by Z-RNTI.

Said transport module is used to use the Z-RNTI of vUE to transmit the PDCCH data of said vUE in the search volume of the said Z-RNTI of the control area of subframe when the PDCCH data of using Z-RNTI at the control area of said subframe transmission vUE;

Said eUE is used for decoding by said Z-RNTI in the search volume of the Z-RNTI of the control area of subframe the PDCCH data of vUE when decoding the PDCCH data of this vUE in the search volume of the control area of subframe by Z-RNTI.

Further, also comprising the tree of configuration reflection expansion control regional relation in the configuration, is the root node of tree with the control area of subframe, is the child node of said root node with said a plurality of expansion control zone;

Said resource distribution module also is used for transferring the expansion control zone that the node except that the child node of root node the tree is given in resource allocation from the idling-resource of the data area of subframe, the corresponding PDCCH in expansion control zone of child node is mapped to the expansion control zone of father node;

The resource allocation information that comprises the resource that indication said expansion control zone takies in the PDCCH data of said vUE further takies the resource allocation information of resource for the expansion control zone that comprises the child node of indicating root node in the PDCCH data of said vUE;

The corresponding PDCCH data in expansion control zone that said transport module also is used to use Z-RNTI in the expansion control zone of father node, to transmit child node comprise the resource allocation information of the resource that the said expansion control of indication zone takies in the corresponding PDCCH data in expansion control zone;

Said eUE is used for when in according to the search volume of the said resource allocation information in the PDCCH data in expansion control zone, detecting PDCCH by the C-RNTI of said eUE with the expansion control zone for current decoding, the expansion control zone of the said resource allocation information indication of the PDCCH data of vUE; In the search volume in the expansion control of current decoding zone by the PDCCH data of the C-RNTI decoding eUE of said eUE, by the decode corresponding PDCCH data in child node expansion control zone in expansion control zone of current decoding of Z-RNTI; According to decoded result; The child node expansion control zone of the resource allocation information indication in the PDCCH data of confirming to decode with Z-RNTI repeats the operation at the expansion control regional decoding of current decoding for the expansion control zone of current decoding, perhaps finishes decode operation.

Wherein, said resource distribution module also is used for distributing to from the data area scheduling resource of said subframe the PDSCH of eUE;

If said eUE is used for decoding successfully by Z-RNTI when operating according to decoded result; The child node expansion control zone of the resource allocation information indication in the PDCCH data that then decode with Z-RNTI is the expansion control zone of current decoding; Repeat operation at the expansion control regional decoding of current decoding; If press Z-RNTI decoding failure, confirm the base station to the end of expansion control region allocation, decode operation finishes;

Said eUE also is used in decoding during PDSCH, judges in the resource that said PDSCH takies whether comprise the resource that said expansion control zone takies, if comprise then the resource that said expansion control zone takies is got rid of from the resource that said PDSCH takies.

Wherein, If said eUE is used for decoding successfully by C-RNTI when operating according to decoded result; Then decode operation finishes; Otherwise the child node expansion control zone of the resource allocation information indication in the PDCCH data that decode with Z-RNTI repeats the operation at the expansion control regional decoding of current decoding for the expansion control zone of current decoding.

Wherein, said resource distribution module also is used for for each eUE, and the PDSCH that said eUE is given in the resource resource allocation in addition that takies with the uncorrelated expansion control of said eUE zone is transferred in the base station from the data area of said subframe,

Said eUE also is used in decoding during PDSCH, judges in the resource that said PDSCH takies whether comprise the resource that the related expansion control zone of said eUE takies, if comprise then the resource that the expansion control zone takies is got rid of from the resource that said PDSCH takies.

Wherein, the father node in the said tree except that root node has a node, and the chain in expansion control zone is formed in the expansion control zone of said father node and said child node;

Said resource distribution module also is used for transferring from the data area of said subframe the PDSCH that said eUE is given in resource allocation;

Said eUE also is used in decoding during PDSCH, judges in the resource that said PDSCH takies whether comprise the resource that the expansion control zone takies, if comprise then the resource that the expansion control zone takies is got rid of from the resource that said PDSCH takies.

Further, said a plurality of expansion control zone comprises female expansion control zone, and sub-expansion control zone, and said female expansion control zone is not for launching the unloaded ripple zone of data;

The corresponding eUE that is specially with the expansion control zone of said eUE is corresponding with sub-expansion control zone;

Said resource distribution module is given the zone of the female expansion control said a plurality of expansion control zone from the idling-resource of the data area of subframe, transferring to be used for when a plurality of expansion control zone is given in resource allocation transferring with female expansion control zone identical resource allocation of shared resource of neighbor cell from the idling-resource of the data area of subframe; From female expansion control zone, transfer with the shared resource time domain different resources in sub-expansion control zone of neighbor cell and distribute to the sub-expansion control zone in said a plurality of expansion control zone.

Wherein, the indication information that also comprises female expansion control zone in the PDCCH data of said vUE;

Said eUE is used for detecting PDCCH according to said resource allocation information C-RNTI by said eUE in the search volume in sub-expansion control zone of PDCCH data when in according to the search volume of the said resource allocation information in the PDCCH data in expansion control zone, detecting PDCCH by the C-RNTI of said eUE.

Further, said configuration also is included as each expansion control area configurations priority;

Said eUE is used for the said resource allocation information according to the PDCCH data when in according to the search volume of the said resource allocation information in the PDCCH data in expansion control zone, detecting PDCCH by the C-RNTI of said eUE, detect PDCCH by priority C-RNTI by said eUE in the search volume in expansion control zone in expansion control zone.

Further, said PDCCH data comprise that also indication expansion control zone is the sign of dummy section;

Said eUE be used for when in according to the search volume of the said resource allocation information in the PDCCH data, detecting PDCCH by the C-RNTI of said eUE in expansion control zone the resource allocation information indication of the PDCCH data that Z-RNTI decodes not for the search volume in the expansion control zone of dummy section in detect PDCCH by the C-RNTI of said eUE; The positional information in said expansion control zone is write down in the expansion control zone for dummy section of the resource allocation information indication in the PDCCH data that decode for Z-RNTI.

The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All any modifications of within spirit of the present invention and principle, being done, be equal to replacement, improvement etc., all be included in protection scope of the present invention.

Claims

1. method of utilizing virtual terminal expansion physical layer control channel resource quantity is characterized in that said method comprises:

2. method according to claim 1 is characterized in that,

Said step 1 also comprises:

Step 21, the tree of configuration reflection expansion control regional relation is the root node of tree with the control area of subframe, is the child node of said root node with said a plurality of expansion control zone;

Said step 2 also comprises:

Said step 4 also comprises:

3. method according to claim 1 is characterized in that,

Said a plurality of expansion control zone comprises female expansion control zone, and sub-expansion control zone, and said female expansion control zone is not for launching the unloaded ripple zone of data;

Said eUE and expansion control zone corresponding comprising:

Step 31, eUE is corresponding with sub-expansion control zone;

4. method according to claim 1 is characterized in that,

Said step 1 also comprises:

Step 41 disposes the priority in each expansion control zone;

5. method according to claim 1 is characterized in that,

Said step 1 comprises:

Step 51A for vUE distributes a plurality of different Z-RNTI, has all Z-RNTI among the eUE, eUE is corresponding with the expansion control zone;

Said base station uses Z-RNTI to comprise in the PDCCH data of the control area of said subframe transmission vUE:

Step 52A, the base station uses each Z-RNTI to transmit the PDCCH data of said vUE in the search volume of the said Z-RNTI of the control area of subframe;

Said eUE comprises by the PDCCH data that Z-RNTI decodes said vUE in the search volume of the control area of subframe:

Step 53A, eUE decode the PDCCH data of vUE by said Z-RNTI in the search volume of each Z-RNTI of the control area of subframe;

Perhaps,

Said step 1 comprises:

Step 51B disposes a vUE, for said vUE distributes a Z-RNTI, has said Z-RNTI among the eUE, and eUE is corresponding with the expansion control zone;

Step 52B, the data of the Z-RNTI of vUE at a plurality of PDCCH of the said vUE of the search volume of the said Z-RNTI of the control area of subframe parallel transmission are used in the base station;

Step 53B, eUE decode a plurality of PDCCH data of said vUE by said Z-RNTI in the search volume of the Z-RNTI of the control area of subframe;

Perhaps,

Said step 1 comprises:

Step 51C disposes a vUE, for said vUE distributes a Z-RNTI, has said Z-RNTI among the eUE, and eUE is corresponding with the expansion control zone;

Step 52C, the base station uses the Z-RNTI of vUE to transmit the PDCCH data of said vUE in the search volume of the said Z-RNTI of the control area of subframe;

Step 53C, eUE decode the PDCCH data of vUE by said Z-RNTI in the search volume of the Z-RNTI of the control area of subframe.

6. method according to claim 2 is characterized in that,

Also comprise between said step 2 and the said step 3:

Step 61, base station are distributed to the PDSCH of eUE from the data area scheduling resource of said subframe;

Said step 26 comprises:

Step 62; If pressing Z-RNTI decodes successfully; The child node expansion control zone of the resource allocation information indication in the PDCCH data that then decode with Z-RNTI is the expansion control zone of current decoding, and repeated execution of steps 25 is failed if press the Z-RNTI decoding; Confirm the base station to the end of expansion control region allocation, decode operation finishes;

Also comprise after the said step 5:

Step 63, eUE is in decoding during PDSCH, judges in the resource that said PDSCH takies whether comprise the resource that said expansion control zone takies, if comprise then the resource that said expansion control zone takies is got rid of from the resource that said PDSCH takies.

7. method according to claim 2 is characterized in that,

Said step 26 comprises:

Step 71 is decoded successfully if press C-RNTI, and then decode operation finishes, otherwise the child node expansion control zone of the resource allocation information indication in the PDCCH data that decode with Z-RNTI is the expansion control zone of current decoding, repeated execution of steps 25.

8. method according to claim 2 is characterized in that,

Also comprise between said step 2 and the said step 3:

Also comprise after the said step 5:

9. method according to claim 2 is characterized in that,

Said step 21 also comprises:

Also comprise between said step 2 and the said step 3:

Also comprise after the said step 5:

10. method according to claim 3 is characterized in that,

Step 101, the C-RNTI by said eUE in the search volume in sub-expansion control zone detects PDCCH according to the said resource allocation information in the PDCCH data.

11. method according to claim 1 is characterized in that,

Step 111; The indication of resource allocation information in the PDCCH data that Z-RNTI decodes do not detect PDCCH for the C-RNTI by said eUE in the search volume in the expansion control zone of dummy section; The positional information in said expansion control zone is write down in the expansion control zone for dummy section of the resource allocation information indication in the PDCCH data that decode for Z-RNTI.

12. a system that utilizes virtual terminal expansion physical layer control channel resource quantity is characterized in that,

Comprise in the configuration: virtual terminal vUE is assigned Radio Network Temporary Identifier RNTI, and the RNTI of said distribution is extended wireless network temporary mark Z-RNTI;

Said system comprises: base station and eUE,

Said base station comprises: