CN102170703A - Method for receiving and transmitting information on physical downlink control channel and equipment thereof - Google Patents

Method for receiving and transmitting information on physical downlink control channel and equipment thereof Download PDF

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Publication number
CN102170703A
CN102170703A CN201110121262XA CN201110121262A CN102170703A CN 102170703 A CN102170703 A CN 102170703A CN 201110121262X A CN201110121262X A CN 201110121262XA CN 201110121262 A CN201110121262 A CN 201110121262A CN 102170703 A CN102170703 A CN 102170703A
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China
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enhanced pdcch
cluster
resource
pdcch cluster
pdcch
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CN201110121262XA
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Chinese (zh)
Inventor
赵锐
沈祖康
潘学明
肖国军
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电信科学技术研究院
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Priority to CN201110121262XA priority Critical patent/CN102170703A/en
Publication of CN102170703A publication Critical patent/CN102170703A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/12Dynamic Wireless traffic scheduling ; Dynamically scheduled allocation on shared channel
    • H04W72/1278Transmission of control information for scheduling

Abstract

The invention discloses a method for receiving and transmitting information on a physical downlink control channel and equipment thereof. The method comprises the following steps: the resource position of an enhanced physical downlink control channel cluster is indicated to user equipment by a base station; scheduling information is transmitted to the user equipment on the resource position of a physical downlink control channel cluster by the base station; the resource position of the enhanced physical downlink control channel cluster is determined by the user equipment according to the indication of the base station; and blind check carried out on the resource position of the enhanced physical downlink control channel cluster by the user equipment to receive the scheduling information transmitted by the base station to the user equipment. The invention can effectively provide the capacity of the physical downlink control channel, simultaneously, can effectively improve the utilization rate of the resource of the enhanced physical downlink control channel.

Description

Information transceiving method on a kind of Physical Downlink Control Channel and equipment

Technical field

The present invention relates to wireless communication technology, information transceiving method and equipment on particularly a kind of Physical Downlink Control Channel.

Background technology

Fig. 1 is the multiplexing schematic diagram that concerns of control area and data area in the descending sub frame, Nc subcarriers is the number of the subcarrier that can use of system among the figure, Nc subcarrier, as shown in the figure, at LTE(Long Term Evolution, Long Term Evolution) in the system, down control channel PDCCH(Physical Downlink Control Channel, Physical Downlink Control Channel) in each wireless sub-frame, sends, and with downlink data PDSCH(Physical Downlink Shared Channel, Physical Downlink Shared Channel) form TDM(Time Division Multiplexing, time division multiplexing) multiplexing relation.PDCCH is by the top n OFDM(Orthogonal Frequency Division Multiplex of a descending sub frame, OFDM) the symbol transmission, wherein the possible value of N is 1,2,3,4, and N=4 only allows to appear in the system that system bandwidth is 1.4MHz.

The control area of transmission PDCCH is the CCE(Control Channel Element by logical partitioning in the LTE system, the control channel unit) constitutes, wherein CCE is to RE(Resource Element, Resource Unit) mapping adopted the mode that interweaves fully.DCI(Downlink Control Information, Downlink Control Information) it is unit that transmission also is based on CCE, at a UE(User Equipment, subscriber equipment) a DCI can send in N continuous CCE, the possible value of N is 1,2,4 in the LTE system, 8, be called CCE polymerization grade (Aggregation Level).UE carries out the PDCCH blind check in the control area, whether search exists the PDCCH at its transmission, the RNTI(Radio Network Temporary Identity of this UE is promptly used in blind check, wireless network is discerned temporarily) to the trial of decoding of different DCI forms and CCE polymerization grade, if decoding is correct, then receive DCI at this UE.LTE UE is in non-DRX(Discontinuous Reception, discontinuous reception) each descending sub frame in the state all needs blind check is carried out in the control area search PDCCH.

Control area in the LTE system in subframe is made of two spaces, i.e. CSS (Common Search Space, common search space) and UESS(UE-specific Search Space, user-specific search volume).The DCI of the wherein exclusive control information in main users transmitting and scheduling sub-district, common search space (for example system information, beep-page message, multicast-power control information etc.), the user-specific search volume is mainly used in the DCI of transmission at each UE scheduling of resource.The common search space comprises preceding 16 CCE in each descending sub frame, and CCE polymerization grade is only supported 4,8 two kinds in the common search space; The RNTI of the initial CCE position of the UE search volume of each user-specific and subframe numbering, UE etc. is relevant in each descending sub frame, support CCE polymerization grade 1,2,4,8 in the user-specific search volume.In UESS, the corresponding search volume of the blind check of each polymerization grade, the different polymerization grade of UE blind check just is to carry out in different search volumes.Table 1 has provided a UE needs blind check in a descending sub frame CCE space, wherein L represents the size of polymerization grade, Size represents that corresponding every kind of polymerization grade size needs the CCE number of blind check, M(L) then represents the blind check number of attempt of corresponding every kind of polymerization grade size.Fig. 2 is that a UE carries out PDCCH blind check schematic diagram in a descending sub frame, and as shown in the figure, Fig. 2 has further provided a signal of this blind check process.According to shown in the table 1, a UE needs to carry out the trial of 22 PDCCH channel resources in a descending sub frame, common search space totally 6 PDCCH channel resources wherein, and the user-specific search volume is totally 16 PDCCH channel resources.

1: one UE of form needs the CCE space of blind check in a descending sub frame

LTE-Advanced(Long Term Evolution-Advanced, long-term evolution upgrading) system continues studying COMP(Coordinated multi-point transmission/reception in the evolution process, cooperative multipoint transmission and reception) and strengthen MU-MIMO(MultipleUsers-MIMO, multiuser MIMO; MIMO:Multiple Input Multiple Output, multiple-input, multiple-output) transmission plan.Wherein a kind of of COMP may scene be RRH (the Remot Radio Head of a macro base station and a plurality of distributions, the long distance wireless node) from constituting a sub-district in logic, then the number of users of the coverage of this sub-district and access all increases greatly than original LTE system.Simultaneously, the MU-MIMO of enhancing widely-used makes that the number of users of service increases greatly in the sub-district.Therefore the capacity of PDCCH is had higher requirement, existing LTE PDCCH design can not be satisfied the demand.

For solving the problem of the resource-constrained and off-capacity of the PDCCH as above mention, a solution is with PRB(physical resource block in the PDSCH zone in a descending sub frame, Physical Resource Block) sends the PDCCH(Enhanced PDCCH that strengthens for unit), Fig. 3 is a kind of structural representation that strengthens PDCCH, as shown in Figure 3, traditional PDCCH is called Legacy PDCCH, and PCFICH is meant Physical Control Format Indicator Channel (Physical Control Format Indicator Channel).

The deficiencies in the prior art are: the design that strengthens search volume among the PDCCH is not provided concrete scheme in the existing disclosed technology.

Summary of the invention

Technical problem solved by the invention has been to provide information transceiving method and the equipment on a kind of PDCCH of enhancing.

Method for sending information on a kind of PDCCH is provided in the embodiment of the invention, has comprised the steps:

The base station is to the resource location of the enhanced PDCCH cluster of UE indication formation enhancing PDCCH, and described enhanced PDCCH cluster is the set of PRB;

The base station on the resource location of enhanced PDCCH cluster to the UE transmitting scheduling information.

Message receiving method on a kind of PDCCH is provided in the embodiment of the invention, has comprised the steps:

UE determines that according to the indication of base station formation strengthens the resource location of the enhanced PDCCH cluster of PDCCH, and described enhanced PDCCH cluster is the set of PRB;

UE carries out blind check to receive the schedule information of base station to the UE transmission on the resource location of enhanced PDCCH cluster.

A kind of base station is provided in the embodiment of the invention, has comprised:

Indicating module is used for the resource location to the enhanced PDCCH cluster of UE indication formation enhancing PDCCH, and described enhanced PDCCH cluster is the set of PRB;

Transport module is used on the resource location of enhanced PDCCH cluster to the UE transmitting scheduling information.

A kind of subscriber equipment is provided in the embodiment of the invention, has comprised:

Determination module is used for determining that according to the indication of base station formation strengthens the resource location of the enhanced PDCCH cluster of PDCCH that described enhanced PDCCH cluster is the set of PRB;

The blind check module is used for carrying out blind check to receive the schedule information of base station to the UE transmission on the resource location of enhanced PDCCH cluster.

Beneficial effect of the present invention is as follows:

In enhanced PDCCH, because the resource utilization of PDCCH will be higher than the utilance of traditional LTE Rel-8 or the PDCCH among the Rel-10 in the technical scheme that provides in the invention process, thereby how a lot of the number of the PDCCH that can carry in identical PDCCH resource is relatively, therefore can effectively improve the capacity of PDCCH.

Description of drawings

Fig. 1 is the multiplexing schematic diagram that concerns of control area and data area in descending sub frame in the background technology;

Fig. 2 carries out PDCCH blind check schematic diagram for UE in the background technology in a descending sub frame;

Fig. 3 is a kind of structural representation that strengthens PDCCH in the background technology;

Fig. 4 is the method for sending information implementing procedure schematic diagram on the base station side PDCCH in the embodiment of the invention;

Fig. 5 is the message receiving method implementing procedure schematic diagram on the UE side PDCCH in the embodiment of the invention;

Fig. 6 is the schematic diagram of indication enhanced PDCCH cluster resource location in the embodiment of the invention;

Fig. 7 is an enhanced PDCCH cluster schematic diagram in the embodiment of the invention;

Fig. 8 is the PDCCH search volume schematic diagram one of the different running time-frequency resource polymerization of DL grant grade in the embodiment of the invention;

Fig. 9 is the PDCCH search volume schematic diagram two of the different running time-frequency resource polymerization of DL grant grade in the embodiment of the invention;

Figure 10 is the PDCCH search volume schematic diagram one of the different running time-frequency resource polymerization of UL grant grade in the embodiment of the invention;

Figure 11 is the PDCCH search volume schematic diagram two of the different running time-frequency resource polymerization of UL grant grade in the embodiment of the invention;

Figure 12 is an architecture of base station schematic diagram in the embodiment of the invention;

Figure 13 is a user device architecture schematic diagram in the embodiment of the invention.

Embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.

In declarative procedure, enforcement from UE and base station side is respectively described, and simultaneously the cooperation of the two is implemented to describe, but this does not also mean that the two must cooperate enforcement, in fact, when UE and base station separate when implementing, it has also solved the problem that exists respectively on UE side, base station side, when just the two is used in combination, can obtain better technique effect.

Fig. 4 is the method for sending information implementing procedure schematic diagram on the base station side PDCCH, as shown in the figure, can comprise the steps:

Step 401, base station constitute the enhanced PDCCH cluster(that strengthens PDCCH to the UE indication and strengthen PDCCH bunch) resource location, described enhanced PDCCH cluster is the set of PRB;

Step 402, base station on the resource location of enhanced PDCCH cluster to the UE transmitting scheduling information.

Fig. 5 is the message receiving method implementing procedure schematic diagram on the UE side PDCCH, as shown in the figure, can comprise the steps:

Step 501, UE determine that according to the indication of base station formation strengthens the resource location of the enhanced PDCCH cluster of PDCCH, and described enhanced PDCCH cluster is the set of PRB;

Step 502, UE carry out blind check to receive the schedule information of base station to the UE transmission on the resource location of enhanced PDCCH cluster.

Below embodiment is described.

Fig. 6 is the schematic diagram of indication enhanced PDCCH cluster resource location, S1 as shown in Figure 6 and S2, it indicates the resource bunch of enhanced PDCCH cluster(enhanced PDCCH respectively) numbering of 1 and 2 initial PRB, wherein enhanced PDCCH cluster can be one or more, is illustrated as 2 among the figure.

In the enforcement, the base station can comprise to the resource location of the enhanced PDCCH cluster of UE indication formation enhancing PDCCH:

1, the resource location of indicating enhanced PDCCH cluster to take, its resource is continuous or discontinuous;

Perhaps, 2, the starting point PRB numbered positions by first enhanced PDCCH cluster of indication, and indicate to UE by the indication of another signaling or by the frequency domain interval between the agreement regulation different e nhanced PDCCH cluster.Concrete, indicating mode can be the starting point PRB numbering of first cluster of indication, the frequency domain interval between the different cluster is perhaps stipulated by agreement by another signaling indication simultaneously.

Perhaps, 3, indicate to UE by the starting point PRB numbered positions of indicating each enhanced PDCCH cluster respectively.Concrete, indicating mode can be the starting point PRB numbered positions of indicating each cluster respectively.

Fig. 7 is an enhanced PDCCH cluster schematic diagram, and Enhanced PDCCH cluster is illustrated in figure 7 as:

1, the number of PRB can be maybe can disposing by signaling of fixing among the enhanced PDCCH cluster.

Concrete, the number of PRB can be fixed for example 4 or 8 among enhanced PDCCH cluste; Also can dispose by signaling.

2, the resource granularity of enhanced PDCCH cluster inside is to be unit with PRB on frequency domain, be to be unit with the time slot on time domain, in a subframe duration, there is the least unit of the resource of two enhance PDCCH cluster a PRB inside, and different polymerization grades is meant the polymerization grade of enhanced PDCCH cluster running time-frequency resource granularity in enhanced PDCCH cluster.

Concrete, the resource granularity of Enhanced PDCCH inside is to be unit with PRB on frequency domain, on time domain, be unit with the time slot, as shown in Figure 7, in a subframe duration, there is the least unit of the resource of two enhance PDCCH a PRB inside, and the notion of the CCE among this and the LTE/LTE-A is similar.Different polymerization grades refers to the polymerization grade of above-mentioned enhanced PDCCH running time-frequency resource granularity in enhanced PDCCH.Wherein the time slot of enhanced PDCCH resource inside can be different with the time slot separation among the PDSCH.

For example: in LTE/LTE-A, the normal CP of Normal CP(; CP:Cyclic Prefix, Cyclic Prefix) under the situation, 14 OFDM symbols are arranged in the subframe, first slot(time slot wherein) in 7 OFDM symbols (0 ~ 6) is arranged, 7 OFDM symbols (7 ~ 13) are arranged in second subframe, consider that legacy PDCCH generally can take 1 ~ 4 symbol, the time slot position of enhanced PDCCH can be different with it in concrete the enforcement, and for example the separation of its time slot can be the position of the 8th OFDM sign-off.

In the enforcement, the base station to the UE transmitting scheduling information, can comprise on the resource location of enhanced PDCCH cluster:

In when transmission, DL grant(down dispatch information) the PDCCH resource that takies is from first PDCCH running time-frequency resource of enhanced PDCCH cluster;

And/or, UL grant(uplink scheduling information) the PDCCH resource that takies do not comprise first PDCCH running time-frequency resource of enhanced PDCCH cluster.

Embodiment to the method for salary distribution of the search volume of a cluster among the Enhanced PDCCH describes below.

A), the search volume of Enhanced PDCCH is based on that enhanced PDCCH cluster distributes.

B), the PDCCH resource that takies of DL grant always begins from first PDCCH running time-frequency resource of enhanced PDCCH cluster, Fig. 8 is the PDCCH search volume schematic diagram one of the different running time-frequency resource polymerization of DL grant grade, the time-frequency granularity of the enhanced PDCCH resource shown in the figure as shown in Figure 7, then concrete distribution as shown in Figure 8 can for:

(1) if the polymerization grade is 1, the PDCCH resource among the enhanced DCCH cluster that corresponding DL grant takies is { 1};

(2) if the polymerization grade is 2, corresponding resource be 1,2};

(3) if the polymerization grade is 4, corresponding resource be 1,2,3,4};

(4) if support and have the polymerization grade to be 8 in the system, corresponding resource be 1,2,3,4,5,6,7,8}.

Divide timing to be not limited in a kind of mode, also DL grant can be put among second slot of enhanced PDCCH cluster, more another kind of mode is given an example below.

Fig. 9 is the PDCCH search volume schematic diagram two of the different running time-frequency resource polymerization of DL grant grade, the time-frequency granularity of the enhanced PDCCH resource shown in the figure as shown in Figure 7, then concrete distribution as shown in Figure 9 can for:

(1) if the polymerization grade is 1, the PDCCH resource among the enhanced DCCH cluster that corresponding DL grant takies is { 1};

(2) if the polymerization grade is 2, corresponding resource be 1,3};

(3) if the polymerization grade is 4, corresponding resource be 1,3,5,7};

(4) if support and have the polymerization grade to be 8 in the system, corresponding resource be 1,3,5,7,9,11,13,15}.

C), the PDCCH resource that takies of UL grant always do not comprise first PDCCH running time-frequency resource of enhanced PDCCH cluster, the method for salary distribution of its search volume can be shown in the following examples 1 and 2:

Embodiment 1, and Figure 10 is the PDCCH search volume schematic diagram one of the different running time-frequency resource polymerization of UL grant grade, the time-frequency granularity of the enhanced PDCCH resource shown in the figure as shown in Figure 7, then concrete distribution as shown in figure 10 can for:

(1) if the polymerization grade is 1, the PDCCH resource among the enhanced DCCH cluster that corresponding UL grant takies is { 2};

(2) if the polymerization grade is 2, corresponding resource be 3,4};

(3) if the polymerization grade is 4, corresponding resource be 5,6,7,8};

(4) if support and have the polymerization grade to be 8 in the system, corresponding resource be 9,10,11,12,13,14,15,16}.

Embodiment 2, and the time-frequency granularity of enhanced PDCCH resource is specifically as follows as shown in Figure 7:

(1) if the polymerization grade is 1, the PDCCH resource among the enhanced DCCH cluster that corresponding UL grant takies is { 2};

(2) if the polymerization grade is 2, corresponding resource be 3, and 4} with 5,6};

(3) if the polymerization grade is 4, corresponding resource be 3,4,5, and 6} with 5,6,7,8};

(4) if support and have the polymerization grade to be 8 in the system, corresponding resource be 5,6,7,8,9,10,11, and 12} with 9,10,11,12,13,14,15,16}.

Also UL grant can be put among second slot of enhanced PDCCH cluster, Figure 11 is the PDCCH search volume schematic diagram two of the different running time-frequency resource polymerization of UL grant grade, and as shown in the figure, a kind of execution mode can be as follows:

(1) if the polymerization grade is 1, the PDCCH resource among the enhanced DCCH cluster that corresponding UL grant takies is { 2};

(2) if the polymerization grade is 2, corresponding resource be 2,4};

(3) if the polymerization grade is 4, corresponding resource be 2,4,6,8};

(4) if support and have the polymerization grade to be 8 in the system, corresponding resource be 2,4,6,8,10,12,14,16}.

In the enforcement, when UE carries out blind check on the resource location of enhanced PDCCH cluster, can for:

The number of times of determining blind check DL grant is: according among the enhanced PDCCH cluster 4 candidate(candidates being arranged) the number of PDCCH channel resource, two kinds of DCI forms and enhanced PDCCH cluster determine;

And/or, the number of times of determining blind check UL grant is: supporting the UL-MIMO(Uplink MIMO) situation under, determine according to the number of the PDCCH channel resource that 4 candidate are arranged among the enhanced PDCCH cluster, two kinds of DCI forms and enhanced PDCCH cluster; Under the situation of not supporting UL-MIMO, determine according to the number that the PDCCH channel resource of 4 candidate, a kind of DCI form and enhanced PDCCH cluster are arranged among the enhanced PDCCH cluster.

Describe with example below.

Embodiment 3:

For example disposed two enhanced PDCCH cluster in system, wherein the size of each cluster is 8 PRB, the polymerization grade of simultaneity factor definition be 1,2,4,8}, the blind check number of times for UE can be defined as so:

A, DL grant:4*2*2=16,4 expressions be the PDCCH channel resource that 4 candidate are arranged in a cluster, first 2 expression needs two kinds of DCI forms of blind check, two cluster of second 2 expression.

The number of times of blind check can be defined as by following according to the definition of different search volumes among B, the UL grant:

(1) based on the UL grant search volume of embodiment 1.

At the UL grant:4*2*2=16 that supports under the situation of UL-MIMO, 4 expressions be the PDCCH channel resource that 4 candidate are arranged in a cluster, first 2 expression needs two kinds of DCI forms of blind check, two cluster of second 2 expression.

At the UL grant:4*1*2=8 that does not support under the UL-MIMO situation, 4 expressions be the PDCCH channel resource that 4 candidate are arranged in a cluster, 1 expression needs a kind of DCI form of blind check, two cluster of second 2 expression.

(2) based on the UL grant search volume of embodiment 2.

At the UL grant:7*2*2=28 that supports under the situation of UL-MIMO, 7 expressions be the PDCCH channel resource that 4 candidate are arranged in a cluster, first 2 expression needs two kinds of DCI forms of blind check, two cluster of second 2 expression.

At the UL grant:7*1*2=14 that does not support under the UL-MIMO situation, 7 expressions be the PDCCH channel resource that 4 candidate are arranged in a cluster, 1 expression needs a kind of DCI form of blind check, two cluster of second 2 expression.

Wherein, the 7th, calculate according to the number of candidate PDCCH resource, be the example of current scene.

Then, be that UE total blind check number of times in enhanced PDCCH search volume is under 2 the situation at cluster:

Search volume based on the UL grant of embodiment 1:

Support the blind check number of times of UL-MIMO:16(DL grant)+the blind check number of times of 16(UL grant)=32;

Do not support the blind check number of times of UL-MIMO:16(DL grant)+the blind check number of times of 8(UL grant)=24.

Search volume based on the UL grant of embodiment 2:

Support the blind check number of times of UL-MIMO:16(DL grant)+the blind check number of times of 28(UL grant)=44;

Do not support the blind check number of times of UL-MIMO:16(DL grant)+the blind check number of times of 14(UL grant)=30.

In concrete the enforcement, the difference of the number of candidate's PDCCH channel resource under different and each polymerization grade of the polymerization number of levels that the number of accordingly different cluster, system support, the capital makes that total blind check number of times of PDCCH is different, above-mentioned execution mode only is used to instruct those skilled in the art specifically how to implement the present invention, but not meaning only has this several modes, can need come to determine corresponding mode in conjunction with practice in the implementation process.

In concrete the enforcement, for PRB resource idle among the Enhanced PDCCH, it can be used for transmitting PDSCH.Because the situation of current all users' enhanced PDCCH resource occupation is always known in the base station, so it can be used for the transmission of PDSCH with PRB resource idle among the enhanced PDCCH.

Owing in enhanced PDCCH, do not adopt interweaving method, in this case, if current do not have PDCCH to transmit, PRB in the enhanced PDCCH resource can also be used for the transmission of PDSCH, can effectively improve the utilance of enhanced PDCCH resource, thereby improve the whole resource utilization of system.

Based on same inventive concept, a kind of base station, subscriber equipment also are provided in the embodiment of the invention, because the principle that these equipment are dealt with problems is similar to the information transceiving method on a kind of Physical Downlink Control Channel, therefore the enforcement of these equipment can repeat part and repeat no more referring to the enforcement of method.

Figure 12 is the architecture of base station schematic diagram, as shown in the figure, can comprise in the base station:

Indicating module 1201 is used for the resource location to the enhanced PDCCH cluster of UE indication formation enhancing PDCCH, and described enhanced PDCCH cluster is the set of PRB;

Transport module 1202 is used on the resource location of enhanced PDCCH cluster to the UE transmitting scheduling information.

In the enforcement, can comprise in the indicating module with one of lower unit or its combination, wherein:

First indicating member is used to the resource location of indicating enhanced PDCCH cluster to take, and its resource is continuous or discontinuous;

Second indicating member is used for by indicating the starting point PRB numbered positions of first enhanced PDCCH cluster, and indicates to UE by another signaling indication or by the frequency domain interval between the agreement regulation different e nhanced PDCCH cluster;

The 3rd indicating member is used for indicating to UE by the starting point PRB numbered positions of indicating each enhanced PDCCH cluster respectively.

In the enforcement, it is enhanced PDCCH cluster that fixes or the enhanced PDCCH cluster that disposes by signaling that indicating module can also be further used for indicating the PRB number.

In the enforcement, it is to be unit with PRB on frequency domain that indicating module can also be further used for indicating inner resource granularity, be to be unit with the time slot on time domain, in a subframe duration, there is the least unit of the resource of two enhance PDCCH cluster a PRB inside, and different polymerization grades is meant the enhanced PDCCH cluster of the polymerization grade of enhanced PDCCH cluster running time-frequency resource granularity in enhanced PDCCH cluster.

In the enforcement, transport module can also be further used on the resource location of enhanced PDCCH cluster during to the UE transmitting scheduling information, and the PDCCH resource that DL grant takies is from first PDCCH running time-frequency resource of enhanced PDCCH cluster; And/or the PDCCH resource that UL grant takies does not comprise first PDCCH running time-frequency resource of enhanced PDCCH cluster.

Figure 13 is the user device architecture schematic diagram, as shown in the figure, can comprise in UE:

Determination module 1301 is used for determining that according to the indication of base station formation strengthens the resource location of the enhanced PDCCH cluster of PDCCH that described enhanced PDCCH cluster is the set of PRB;

Blind check module 1302 is used for carrying out blind check to receive the schedule information of base station to the UE transmission on the resource location of enhanced PDCCH cluster.

In the enforcement, can comprise in the determination module with one of lower unit or its combination, wherein:

First determining unit is used for determining resource location according to the resource location that the enhanced PDCCH cluster that indicate the base station takies that this resource is continuous or discontinuous;

Second determining unit, be used for starting point PRB numbered positions according to first enhanced PDCCH cluster of base station indication, and another signaling indication by the base station or determine resource location by the frequency domain interval between the different e nhanced PDCCH cluster of agreement regulation;

The 3rd determining unit, the starting point PRB numbered positions of each enhanced PDCCH cluster that is used for indicating respectively according to the base station is determined resource location.

In the enforcement, determination module can also be further used for determining that the PRB number is enhanced PDCCH cluster that fixes or the enhanced PDCCH cluster that disposes by signaling.

In the enforcement, determination module can also be further used for determining that inner resource granularity is to be unit with PRB on frequency domain, be to be unit with the time slot on time domain, in a subframe duration, there is the least unit of the resource of two enhance PDCCH cluster a PRB inside, and different polymerization grades is meant the enhanced PDCCH cluster of the polymerization grade of enhanced PDCCH cluster running time-frequency resource granularity in enhanced PDCCH cluster.

In the enforcement, when the blind check module can also be further used for carrying out blind check on the resource location of enhanced PDCCH cluster, determine that the number of times of blind check DL grant is: the number according to the PDCCH channel resource that 4 candidate are arranged among the enhanced PDCCH cluster, two kinds of DCI forms and enhanced PDCCH cluster is determined; And/or, the number of times of determining blind check UL grant is: supporting under the situation of UL-MIMO, determining according to the number of the PDCCH channel resource that 4 candidate are arranged among the enhanced PDCCH cluster, two kinds of DCI forms and enhanced PDCCH cluster; Under the situation of not supporting UL-MIMO, determine according to the number that the PDCCH channel resource of 4 candidate, a kind of DCI form and enhanced PDCCH cluster are arranged among the enhanced PDCCH cluster.

For the convenience of describing, the each several part of the above device is divided into various modules with function or the unit is described respectively.Certainly, when enforcement is of the present invention, can in same or a plurality of softwares or hardware, realize the function of each module or unit.

As seen from the above-described embodiment, proposed a kind of in the embodiment of the invention based on FDM(Frequency Division Mutiplexing, the information transmission scheme of the PDCCH of enhancing frequency division multiplexing), can effectively improve the capacity of PDCCH, effectively raise the utilance of enhanced PDCCH resource simultaneously.

Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.

The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.

These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.

These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.

Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (20)

1. the method for sending information on the physical downlink control channel PDCCH is characterized in that, comprises the steps:
The base station is to the resource location of the enhancing PDCCH bunch of enhanced PDCCH cluster of user equipment (UE) indication formation enhancing PDCCH, and described enhanced PDCCH cluster is the set of Physical Resource Block PRB;
The base station on the resource location of enhanced PDCCH cluster to the UE transmitting scheduling information.
2. the method for claim 1 is characterized in that, the base station comprises to the resource location of the enhanced PDCCH cluster of UE indication formation enhancing PDCCH:
The resource location that indication enhanced PDCCH cluster takies, its resource is continuous or discontinuous;
Perhaps, by indicating the starting point PRB numbered positions of first enhanced PDCCH cluster, and indicate to UE by another signaling indication or by the frequency domain interval between the agreement regulation different e nhanced PDCCH cluster;
Perhaps, indicate to UE by the starting point PRB numbered positions of indicating each enhanced PDCCH cluster respectively.
3. the method for claim 1 is characterized in that, among the enhanced PDCCH cluster number of PRB be fix or by signaling configuration.
4. the method for claim 1, it is characterized in that, the resource granularity of enhanced PDCCH cluster inside is to be unit with PRB on frequency domain, be to be unit with the time slot on time domain, in a subframe duration, there is the least unit of the resource of two enhance PDCCH cluster a PRB inside, and different polymerization grades is meant the polymerization grade of enhanced PDCCH cluster running time-frequency resource granularity in enhanced PDCCH cluster.
5. as the arbitrary described method of claim 1 to 4, it is characterized in that the base station to the UE transmitting scheduling information, comprising on the resource location of enhanced PDCCH cluster:
When transmission, the PDCCH resource that down dispatch information DL grant takies is from first PDCCH running time-frequency resource of enhanced PDCCH cluster;
And/or the PDCCH resource that uplink scheduling information UL grant takies does not comprise first PDCCH running time-frequency resource of enhanced PDCCH cluster.
6. the message receiving method on the PDCCH is characterized in that, comprises the steps:
UE determines that according to the indication of base station formation strengthens the resource location of the enhanced PDCCH cluster of PDCCH, and described enhanced PDCCH cluster is the set of PRB;
UE carries out blind check to receive the schedule information of base station to the UE transmission on the resource location of enhanced PDCCH cluster.
7. method as claimed in claim 6 is characterized in that, UE determines that according to the indication of base station formation strengthens the resource location of the enhanced PDCCH cluster of PDCCH, comprising:
The resource location that the enhanced PDCCH cluster that indicates according to the base station takies determines that this resource is continuous or discontinuous;
Perhaps, according to the starting point PRB numbered positions of first enhanced PDCCH cluster of base station indication, and another signaling indication by the base station or determine by the frequency domain interval between the different e nhanced PDCCH cluster of agreement regulation;
Perhaps, the starting point PRB numbered positions of each enhanced PDCCH cluster that indicates respectively according to the base station is determined.
8. method as claimed in claim 6 is characterized in that, among the enhanced PDCCH cluster number of PRB be fix or by signaling configuration.
9. method as claimed in claim 6, it is characterized in that, the resource granularity of enhanced PDCCH cluster inside is to be unit with PRB on frequency domain, be to be unit with the time slot on time domain, in a subframe duration, there is the least unit of the resource of two enhance PDCCH cluster a PRB inside, and different polymerization grades is meant the polymerization grade of enhanced PDCCH cluster running time-frequency resource granularity in enhanced PDCCH cluster.
10. as the arbitrary described method of claim 6 to 9, it is characterized in that, when UE carries out blind check on the resource location of enhanced PDCCH cluster,
The number of times of determining blind check DL grant is: the number according to the PDCCH channel resource that 4 candidate are arranged among the enhanced PDCCH cluster, two kinds of DCI forms and enhanced PDCCH cluster is determined;
And/or, the number of times of determining blind check UL grant is: supporting under the situation of up multiple-input, multiple-output UL-MIMO, determining according to the number of the PDCCH channel resource that 4 candidate candidate are arranged among the enhanced PDCCH cluster, two kinds of Downlink Control Information DCI forms and enhanced PDCCH cluster; Under the situation of not supporting UL-MIMO, determine according to the number that the PDCCH channel resource of 4 candidate, a kind of DCI form and enhanced PDCCH cluster are arranged among the enhanced PDCCH cluster.
11. a base station is characterized in that, comprising:
Indicating module is used for the resource location to the enhanced PDCCH cluster of UE indication formation enhancing PDCCH, and described enhanced PDCCH cluster is the set of PRB;
Transport module is used on the resource location of enhanced PDCCH cluster to the UE transmitting scheduling information.
12. base station as claimed in claim 11 is characterized in that, indicating module comprises with one of lower unit or its combination, wherein:
First indicating member is used to the resource location of indicating enhanced PDCCH cluster to take, and its resource is continuous or discontinuous;
Second indicating member is used for by indicating the starting point PRB numbered positions of first enhanced PDCCH cluster, and indicates to UE by another signaling indication or by the frequency domain interval between the agreement regulation different e nhanced PDCCH cluster;
The 3rd indicating member is used for indicating to UE by the starting point PRB numbered positions of indicating each enhanced PDCCH cluster respectively.
13. base station as claimed in claim 11 is characterized in that, it is enhanced PDCCH cluster that fixes or the enhanced PDCCH cluster that disposes by signaling that indicating module is further used for indicating the PRB number.
14. base station as claimed in claim 11, it is characterized in that, it is to be unit with PRB on frequency domain that indicating module is further used for indicating inner resource granularity, be to be unit with the time slot on time domain, in a subframe duration, there is the least unit of the resource of two enhance PDCCH cluster a PRB inside, and different polymerization grades is meant the enhanced PDCCH cluster of the polymerization grade of enhanced PDCCH cluster running time-frequency resource granularity in enhanced PDCCH cluster.
15. as the arbitrary described base station of claim 11 to 14, it is characterized in that, transport module is further used on the resource location of enhanced PDCCH cluster during to the UE transmitting scheduling information, and the PDCCH resource that DL grant takies is from first PDCCH running time-frequency resource of enhanced PDCCH cluster; And/or the PDCCH resource that UL grant takies does not comprise first PDCCH running time-frequency resource of enhanced PDCCH cluster.
16. a subscriber equipment is characterized in that, comprising:
Determination module is used for determining that according to the indication of base station formation strengthens the resource location of the enhanced PDCCH cluster of PDCCH that described enhanced PDCCH cluster is the set of PRB;
The blind check module is used for carrying out blind check to receive the schedule information of base station to the UE transmission on the resource location of enhanced PDCCH cluster.
17. subscriber equipment as claimed in claim 16 is characterized in that, determination module comprises with one of lower unit or its combination, wherein:
First determining unit is used for determining resource location according to the resource location that the enhanced PDCCH cluster that indicate the base station takies that this resource is continuous or discontinuous;
Second determining unit, be used for starting point PRB numbered positions according to first enhanced PDCCH cluster of base station indication, and another signaling indication by the base station or determine resource location by the frequency domain interval between the different e nhanced PDCCH cluster of agreement regulation;
The 3rd determining unit, the starting point PRB numbered positions of each enhanced PDCCH cluster that is used for indicating respectively according to the base station is determined resource location.
18. subscriber equipment as claimed in claim 16 is characterized in that, determination module is further used for determining that the PRB number is enhanced PDCCH cluster that fixes or the enhanced PDCCH cluster that disposes by signaling.
19. subscriber equipment as claimed in claim 16, it is characterized in that, determination module is further used for determining that inner resource granularity is to be unit with PRB on frequency domain, be to be unit with the time slot on time domain, in a subframe duration, there is the least unit of the resource of two enhance PDCCH cluster a PRB inside, and different polymerization grades is meant the enhanced PDCCH cluster of the polymerization grade of enhanced PDCCH cluster running time-frequency resource granularity in enhanced PDCCH cluster.
20. as the arbitrary described subscriber equipment of claim 16 to 19, it is characterized in that, when the blind check module is further used for carrying out blind check on the resource location of enhanced PDCCH cluster, determine that the number of times of blind check DL grant is: the number according to the PDCCH channel resource that 4 candidate are arranged among the enhanced PDCCH cluster, two kinds of DCI forms and enhanced PDCCH cluster is determined; And/or, the number of times of determining blind check UL grant is: supporting under the situation of UL-MIMO, determining according to the number of the PDCCH channel resource that 4 candidate are arranged among the enhanced PDCCH cluster, two kinds of DCI forms and enhanced PDCCH cluster; Under the situation of not supporting UL-MIMO, determine according to the number that the PDCCH channel resource of 4 candidate, a kind of DCI form and enhanced PDCCH cluster are arranged among the enhanced PDCCH cluster.
CN201110121262XA 2011-05-11 2011-05-11 Method for receiving and transmitting information on physical downlink control channel and equipment thereof CN102170703A (en)

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