CN102368871B - Physical downlink control channel (PDCCH) resource configuration application method and apparatus thereof - Google Patents
Physical downlink control channel (PDCCH) resource configuration application method and apparatus thereof Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
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- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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Abstract
The invention relates to the communication field and discloses a physical downlink control channel (PDCCH) resource configuration application method and an apparatus thereof which are used to reduce a blocking probability of the PDCCH in a system. The method is characterized in that: a base station and UE combine a LTE carrier wave set of UE configuration and carrier aggregation (CA) capability information of the UE so as to determine a candidate PDCCH number under each control channel element (CCE) aggregation level in a PDCCH search space corresponding to the each LTE carrier wave and in the LTE carrier wave set; and then the base station can send DCI to the UE on the determined candidate PDCCH; the UE can perform blind detection on the determined candidate PDCCH so as to obtain the DCI issued by the base station. Therefore, the total numbers of the PDCCH blind detection actually executed by the UE can be substantially raised under a scope allowed by UE ability. PDCCH obstruction can be avoided to be generated and system performance can be improved. The total numbers of the PDCCH blind detection actually executed by the UE do not exceed the maximum PDCCH blind detection numbers.
Description
Technical field
The present invention relates to the communications field, particularly a kind of configuration application process and device of PDCCH resource.
Background technology
At LTE(Long Term Evolution, Long Term Evolution) in Rel8 system, terminal need to be to the PDCCH(physical downlink control channel in public search space and the exclusive search volume of UE, Physical Downlink Control Channel) carry out blind Detecting simultaneously.In public search space, the CCE(Control Channel Element of PDCCH, control channel element) polymerization grade can only be 4 and 8, corresponding, under every kind of CCE polymerization grade, needs the number of the candidate PDCCH of blind check to be respectively 4 and 2; And in the exclusive search volume of UE, the CCE polymerization grade of PDCCH can be 1,2,4,8; And under every kind of CCE polymerization grade, it is different needing the number of the candidate PDCCH of blind check, in the 9.1.1 of 3GPP TS36.213, has provided description, specifically as shown in table 1:
Table 1
PDCCH?candidates?in?UE?specific?search?space.
(the candidate PDCCH in the exclusive control of UE space)
As shown in table 1, corresponding to [1,2,4,8] four kinds of CCE polymerization grades, the number of the candidate PDCCH in the exclusive search volume of UE can be described as respectively [6,6,2,2], and the number of the candidate PDCCH in public search space can be described as respectively [4,2]; Under normal circumstances, the corresponding a kind of transmission mode of each number, needs two kinds of DCI(Downlink Control Information of blind check for every kind of transmission mode) form, thus, can find out that the terminal in LTE needs the number of times of blind check to be: 2*[6+6+2+2+4+2]=44 times.Wherein the exclusive search volume of UE is defined as follows shown in the formula of face:
Y
k＝(A·Y
k-1)modD
Y
-1＝n
RNTI≠0，A＝39827，D＝65537
Wherein
be illustrated in subframe k, when polymerization grade is L, the position of the PDCCH resource that UE uses, the position of whole CCE that PDCCH comprises, i=0 ..., L-1, m=0 ..., M
(L)-1.M
(L)represent the number of candidate PDCCH when polymerization grade is L, N
cCE, kwhat represent is the number of the CCE in subframe k.
Consult shown in Fig. 1, and for the LTE(LTE-Advanced strengthening) for system, be to support the system bandwidth (for example, 100MHz) wider than LTE system, need by the resource of multiple LTE carrier waves (claiming again member carrier) being coupled together to use, specifically have two kinds of modes:
Multiple continuous LTE carrier waves are carried out to polymerization, for LTE-A provides larger transmission bandwidth.
Multiple discontinuous LTE carrier waves are carried out to polymerization, for LTE-A provides larger transmission bandwidth.
Consult shown in Fig. 2 A, Fig. 2 B and Fig. 3, the research trend of standardization body is at present, the common recognition designing for carrier aggregation system is that the design maintenance on each carrier wave is as far as possible consistent with LTE Rel8, thereby the terminal of assurance LTE Rel8 system can normally be worked on each member carrier.
In LTE-A system (being LTE Rel-10), the control program of PDCCH mainly contains following two kinds of patterns:
Pattern 1: independent scheduling, each carrier wave is independently dispatched, do not support across carrier dispatching, in this case, the definition of the PDCCH search volume of each carrier wave with in LTE R8, be consistent; Specifically as shown in Figure 2 A.
Pattern 2: across carrier dispatching, can pass through other carrier waves of carrier dispatching, specifically as shown in Figure 2 B.
Describe in pattern 2 across in carrier dispatching situation, consider the complexity of PDCCH design, the flexibility of scheduling, the complexity of PDCCH blind check, and the impact bringing in up-downgoing asymmetric carrier aggregation situation, set PDCCH CC(Physical Downlink Control Channel member carrier) and PDSCH/PUSCH CC(Physical Downlink Shared Channel and/or Physical Uplink Shared Channel member carrier) between incidence relation be: from terminal angle, meeting a PDSCH/PUSCH CC can only dispatch by a PDCCH CC, specifically as shown in Figure 3.
Wherein, different PDSCH/PUSCH CC have PDCCH search volume separately, and the number of its candidate PDCCH in the time that CCE polymerization grade is [1,2,4,8] is [6,6,2,2] respectively, and its search volume is defined as follows:
The placement of each independently search volume adopts the mode of cascade, and the position of its CCE starting point produces according to a hash function, and it is defined as follows:
Y
k＝(A·Y
k-1)modD
Y
-1＝n
RNTI≠0,A＝39827,D＝65537
Wherein,
be illustrated in the PDCCH search volume that in subframe K, the CCE polymerization grade for PDSCH/PUSCH CC n is L, n=1,2 ..., (N-1), wherein N is the number of the member carrier of polymerization, M
(L)the number of the candidate PDCCH in the time that polymerization grade is L, wherein m=0 ..., M
(L)-1, i=0 ..., L-1, N
cCE, kwhat represent is the number of k the CCE in subframe.
Meanwhile, the search volume between different CC is in the time that a PDCCH CC is inner, if the bit of DCI form is identical, different CC also can share the search volume of PDCCH CC inside.
Under normal circumstances, the CA(Carrier aggregation of UE, carrier aggregation) polymerizing power determines by the configuration of UE self, can directly determine that according to the CA polymerizing power of UE UE can the maximum PDCCH blind check number of times of supporting, specific as follows:
The descending CA polymerizing power of supposing UE is N member carrier, the up CA polymerizing power of UE is K member carrier, in Rel-10, up K the carrier wave of UE always with a descending N member carrier in K member carrier have fixing SIB2(system information block 2) indication incidence relation, these carrier index that have in the uplink member carrier of fixed correlation relation and the DCI information of downlink member carrier in the time of scheduling are identical, and the search volume of its PDCCH is also identical, therefore, the up CA polymerizing power of UE is less than or equal to the descending CA polymerizing power of UE, K≤N, in PDCCH search volume corresponding to each CC of UE polymerization, CCE polymerization grade is [1, 2, 4, 8] number of corresponding candidate PDCCH difference [6 time, 6, 2, 2], in this case, the maximum PDCCH blind check number of times that UE supports calculates can be as follows:
If UE does not support the input and output of UL-MIMO(uplink multi-users), on all candidate PDCCH candidate, need so two kinds of DCI forms of blind check, therefore its maximum blind check number of times of supporting is:
Public search space: 2*(4+2)=12
The search volume that UE is exclusive: N*2*(6+6+2+2)
Total blind check number of times: 12+32*N
If UE supports UL-MIMO, in the search volume that capable PUSCH CC is corresponding, need the DCI format4 of extra blind check for UL-MIMO transmission so thereon, therefore, the maximum blind check number of times of supporting of UE is:
Public search space: 2*(4+2)=12
The search volume that UE is exclusive: N*2*(6+6+2+2)+k*(6+6+2+2)
Total blind check number of times: 12+32*N+16*K
At the PDSCH/PUSCH of UE polymerization CC(for transmitting the member carrier of PDSCH/PUSCH), conventionally only have a CC to be defined as Primary CC(and be called for short main carrier), Primary CC by base station selected and by RRC signal deployment to UE, the Primary CC of different UEs can be different.The major function of Primary CC binding is as follows:
Only have Primary CC to dispose PUCCH(Physical uplink control channel, Physical Uplink Control Channel), for transmitting CQI/ACK/SR;
The descending UL timing reference(UL timing reference that can be used as random access of Primary CC) carrier wave;
Primary CC can be used as the pathloss reference(path loss reference of Primary CC and CC);
Only have on Primary CC and can carry out RACH;
Only have on Primary CC and can configure SPS resource;
Only have generation RLF(Radio link failure on Primary CC, Radio Link Failure), just think that RLF occurs terminal.
As can be seen here, in the PDCCH search volume defining in LTE-A system, regardless of the CA polymerizing power of UE, UE always with PDSCH/PUSCH CC set comprises the relevant of CC to the size of the PDCCH search volume of network side agreement, do not make full use of the maximum blind check number of times that UE can support, along with the development of intelligent terminal technology, the blind check ability of UE strengthens day by day, if also come for UE configuration PDCCH search volume according to traditional approach, can cause not mating of UE ability and PDCCH resource; Especially in a fairly large number of situation of UE, according to traditional approach configuration PDCCH search volume, can cause the obstruction of PDCCH, reduce the throughput of system, thereby affect systematic function.
Summary of the invention
The embodiment of the present invention provides a kind of PDCCH resource distribution application process and device, in order to the blocking probability of PDCCH in reduction system.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
A configuration application process for PDCCH resource, comprising:
The carrier polymerization capability information that receiving terminal UE reports;
Determine the member carrier collection for described UE configuration;
According to the member carrier collection for described UE configuration and the carrier polymerization capability information of described UE; determine respectively in the member carrier collection for described UE configuration; in PDCCH search volume corresponding to each member carrier; the number of candidate PDCCH under each control channel Elements C CE polymerization grade, makes the PDCCH blind check total degree of UE in PDCCH search volume corresponding to each member carrier be no more than the maximum PDCCH blind check number of times that UE supports;
In fixed candidate PDCCH, select at least one candidate PDCCH to send Downlink Control Information to UE;
Wherein, determine in the member carrier collection for described UE configuration, in PDCCH search volume corresponding to any one member carrier, the number of the candidate PDCCH under each CCE polymerization grade, comprising:
According to the member carrier collection for described UE configuration and the carrier polymerization capability information of described UE, confirm the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding;
Based on the mapping relations of formulating in existing standard agreement, confirm that the PDCCH that described any one member carrier is corresponding explores in space, the number of initial candidate PDCCH under each CCE polymerization grade;
Calculate respectively the product of the number of candidate PDCCH initial under described PDCCH search volume relevant configured parameter and each CCE polymerization grade, by result of calculation as in PDCCH search volume corresponding to described any one member carrier, the number of the candidate PDCCH under each CCE polymerization grade.
A configuration application process for PDCCH resource, comprising:
Receive the member carrier collection information that network side sends;
Based on described member carrier collection information and local carrier aggregation capacity, determine respectively in corresponding member carrier collection, in PDCCH search volume corresponding to each member carrier, the number of candidate PDCCH under each control channel Elements C CE polymerization grade, makes local PDCCH blind check total degree in PDCCH search volume corresponding to each member carrier be no more than the local maximum PDCCH blind check number of times of supporting;
On fixed candidate PDCCH, carry out blind check, the Downlink Control Information sending to obtain network side;
Wherein, based on described member carrier collection information and local carrier aggregation capacity, confirm in corresponding member carrier collection, in PDCCH search volume corresponding to any one member carrier, the number of the candidate PDCCH under each CCE polymerization grade, comprising:
Based on described member carrier collection and local carrier aggregation capacity, confirm the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding;
Based on the mapping relations of formulating in existing standard agreement, confirm that the PDCCH that described any one member carrier is corresponding explores in space, the number of initial candidate PDCCH under each CCE polymerization grade;
Calculate respectively the product of the number of candidate PDCCH initial under described PDCCH search volume configuration relevant parameter and each CCE polymerization grade, by result of calculation as in PDCCH search volume corresponding to described any one member carrier, the number of the candidate PDCCH under each CCE polymerization grade.
A configuration application apparatus for PDCCH resource, comprising:
The first communication unit, the carrier polymerization capability information reporting for receiving terminal UE;
Processing unit, for determining the member carrier collection for described UE configuration, and according to the member carrier collection for described UE configuration and the carrier polymerization capability information of described UE, determine respectively in the member carrier collection for described UE configuration, in PDCCH search volume corresponding to each member carrier, the number of candidate PDCCH under each control channel Elements C CE polymerization grade, makes the PDCCH blind check total degree of UE in PDCCH search volume corresponding to each member carrier be no more than the maximum PDCCH blind check number of times that UE supports;
Second communication unit, for selecting at least one candidate PDCCH to send Downlink Control Information to UE at fixed candidate PDCCH;
Wherein, described processing unit is determined in the member carrier collection for described UE configuration, in PDCCH search volume corresponding to any one member carrier, when the number of candidate PDCCH under each CCE polymerization grade, according to the member carrier collection for described UE configuration and the carrier polymerization capability information of described UE, confirm the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding, and mapping relations based on formulating in existing standard agreement, confirm that the PDCCH that described any one member carrier is corresponding explores in space, the number of initial candidate PDCCH under each CCE polymerization grade, and calculate respectively the product of the number of candidate PDCCH initial under described PDCCH search volume relevant configured parameter and each CCE polymerization grade, by result of calculation as in PDCCH search volume corresponding to described any one member carrier, the number of candidate PDCCH under each CCE polymerization grade.
A configuration application apparatus for PDCCH resource, comprising:
The first communication unit, the member carrier collection issuing for receiving network side;
Control unit, for the carrier polymerization capability information based on described member carrier collection and this locality, determine respectively in member carrier collection, in PDCCH search volume corresponding to each member carrier, the number of candidate PDCCH under each control channel Elements C CE polymerization grade, makes local PDCCH blind check total degree in PDCCH search volume corresponding to each member carrier be no more than the local maximum PDCCH blind check number of times of supporting;
Second communication unit, for carry out blind check on fixed candidate PDCCH, the Downlink Control Information sending to obtain network side;
Wherein, described control unit is based on described member carrier collection information and local carrier aggregation capacity, confirm in corresponding member carrier collection, in PDCCH search volume corresponding to any one member carrier, when the number of candidate PDCCH under each CCE polymerization grade, based on described member carrier collection and local carrier aggregation capacity, confirm the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding, and mapping relations based on formulating in existing standard agreement, confirm that the PDCCH that described any one member carrier is corresponding explores in space, the number of initial candidate PDCCH under each CCE polymerization grade, and calculate respectively the product of the number of candidate PDCCH initial under described PDCCH search volume configuration relevant parameter and each CCE polymerization grade, by result of calculation as in PDCCH search volume corresponding to described any one member carrier, the number of candidate PDCCH under each CCE polymerization grade.
In the embodiment of the present invention, the PDCCH resource of having formulated strengthens allocation plan, base station and UE are all in conjunction with the member carrier collection for UE configuration and the CA ability information of UE, determine in member carrier collection, in PDCCH search volume corresponding to each member carrier, the number of the candidate PDCCH under each CCE polymerization grade, like this, base station just can send DCI to UE on definite candidate PDCCH, and UE can carry out the DCI that blind check issues to obtain base station at definite candidate PDCCH; Thereby both can be in UE ability allowed band, greatly promote the PDCCH blind check total degree of the actual execution of UE, and then avoid PDCCH to block, elevator system performance, can make again the PDCCH blind check total degree of the actual execution of UE be no more than the maximum PDCCH blind check number of times that UE supports.
Accompanying drawing explanation
Fig. 1 is carrier aggregation schematic diagram under prior art;
Fig. 2 A is this carrier dispatching schematic diagram under prior art;
Fig. 2 B is across carrier dispatching schematic diagram under prior art;
Fig. 3 is PDCCH CC and PDSCH/PUSCH CC incidence relation schematic diagram under prior art;
Fig. 4 is base station functions structural representation in the embodiment of the present invention;
Fig. 5 is termination function structural representation in the embodiment of the present invention;
Fig. 6 is that in the embodiment of the present invention, base station configures and apply PDCCH resource flow chart for UE;
Fig. 7 is that in the embodiment of the present invention, UE configures and apply PDCCH resource flow chart according to base station indication.
Embodiment
For the blocking probability of PDCCH in effective reduction system, elevator system performance, in the embodiment of the present invention, base station and UE are all in conjunction with the member carrier collection for UE configuration and the CA ability information of UE, determine in member carrier collection, in PDCCH search volume corresponding to each member carrier, the number of candidate PDCCH under each CCE polymerization grade, like this, base station just can send signaling to UE on definite candidate PDCCH, and UE can carry out the signaling that blind check issues to obtain base station at definite candidate PDCCH.
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is elaborated.
Consult shown in Fig. 4, in the embodiment of the present invention, base station comprises the first communication unit 40, processing unit 41 and second communication unit 42, wherein,
The first communication unit 40, closes ability information for receiving the CA that UE reports;
Processing unit 41, for determining the member carrier collection for UE configuration, and according to the member carrier collection for UE configuration and the CA ability information of UE, determine respectively in the member carrier collection for UE configuration, in PDCCH search volume corresponding to each member carrier, the number of candidate PDCCH under each CCE polymerization grade, makes the PDCCH blind check total degree of UE in PDCCH search volume corresponding to each member carrier be no more than the maximum PDCCH blind check number of times that UE supports;
Second communication unit 42, for selecting at least one candidate PDCCH to send Downlink Control Information to UE at fixed candidate PDCCH.
Consult shown in Fig. 5, in the embodiment of the present invention, UE comprises the first communication unit 50, control unit 51 and second communication unit 52, wherein,
The first communication unit 50, the member carrier collection information sending for receiving network side;
Control unit 51, for the CA ability based on member carrier collection information and this locality, determine respectively in corresponding member carrier collection, in PDCCH search volume corresponding to each member carrier, the number of candidate PDCCH under each control channel Elements C CE polymerization grade, makes local PDCCH blind check total degree in PDCCH search volume corresponding to each member carrier be no more than the local maximum PDCCH blind check number of times of supporting;
Second communication unit 52, for carry out blind check on fixed candidate PDCCH, the Downlink Control Information sending to obtain network side.
Based on technique scheme, to consult shown in Fig. 6, in the embodiment of the present invention, base station configures and applies the detailed process of PDCCH resource (being PDCCH search volume) for UE as follows:
Step 600: base station receives the CA ability information that UE reports.
In the present embodiment, the CA ability information that UE reports, the maximum PDCCH blind check number of times of having indicated UE to support, CA ability information can be defined as N=max (L, K) individual member carrier, L is the ability of the descending polymerization of UE, descending carrier number that can polymerization, K is the ability of the up polymerization of UE, up-link carrier number that can polymerization.
Be specially:
In PDCCH search volume corresponding to each CC of polymerization, the number of corresponding candidate PDCCH [6,6,2,2] respectively when CCE polymerization grade is [1,2,4,8];
If UE does not support UL-MIMO, on all candidate PDCCH, need so two kinds of DCI forms of blind check, therefore its maximum PDCCH blind check number of times of supporting is:
Public search space: 2*(4+2)=12
The search volume that UE is exclusive: N*2*(6+6+2+2)
Total blind check number of times (being the maximum PDCCH blind check number of times that UE can support): 12+32*N
If UE supports UL-MIMO, in the search volume that capable PUSCH CC is corresponding, need the DCI format4 of extra blind check for UL-MIMO transmission so thereon, therefore, the maximum PDCCH blind check number of times of supporting of UE is:
Public search space: 2*(4+2)=12;
The search volume that UE is exclusive: N*2*(6+6+2+2)+k*(6+6+2+2);
Total blind check number of times (being the maximum PDCCH blind check number of times that UE can support): 12+32*N+16*K
Step 610: the member carrier collection for UE configuration is determined in base station; As, the local PDSCH/PUSCH CC set for UE configuration is determined in base station.
In practical application, base station also needs the configuration information notice UE of above-mentioned PDSCH/PUSCH CC set, to make UE also can determine the PDCCH resource that self obtains according to this information.
Step 620: base station is according to the member carrier collection for UE configuration and the CA ability information of UE, determine respectively in the member carrier collection for UE configuration, in PDCCH search volume corresponding to each member carrier, the number of candidate PDCCH under each CCE polymerization grade, makes the PDCCH blind check total degree of UE in PDCCH search volume corresponding to each member carrier be no more than the maximum PDCCH blind check number of times that UE can support.
In step 620, when base station is according to the member carrier collection for UE configuration and the CA ability information of UE, confirm in member carrier collection, in PDCCH search volume corresponding to any one member carrier, when the number of candidate PDCCH under each CCE polymerization grade, first,, according to the member carrier collection for UE configuration and the CA ability information of UE, confirm the PDCCH search volume configuration relevant parameter that above-mentioned any one member carrier is corresponding; Then,, based on the mapping relations of formulating in existing standard agreement (as the 9.1.1 of 3GPP TS36.213), confirm that the PDCCH that above-mentioned any one member carrier is corresponding explores in space, the number of initial candidate PDCCH under each CCE polymerization grade; Finally, calculate respectively the product of the number of candidate PDCCH initial under above-mentioned PDCCH search volume configuration relevant parameter and each CCE polymerization grade, and by result of calculation as in PDCCH search volume corresponding to above-mentioned any one member carrier, the number of the candidate PDCCH under each CCE polymerization grade.
Can infer and obtain thus, in the member carrier collection for UE configuration, the PDCCH blind check total degree=UE of UE in PDCCH search volume corresponding to each member carrier at the PDCCH of public search space blind check total degree+UE at the PDCCH in exclusive space blind check total degree, wherein, UE needs DCI form number (value is 2 under normal circumstances) * (the number sum * PDCCH search volume configuration relevant parameter 2+ of the candidate PDCCH in the PDCCH search volume of number sum * PDCCH search volume configuration relevant parameter 1+ carrier wave 2 correspondences of the candidate PDCCH in the PDCCH search volume of carrier wave 1 correspondence under each CCE polymerization grade under each CCE polymerization grade of blind check at the PDCCH in exclusive space blind check total degree=UE ... the number sum * PDCCH search volume configuration relevant parameter M of candidate PDCCH in PDCCH search volume corresponding to carrier wave M under each CCE polymerization grade).
Wherein, M is the number of member carrier in PDSCH/PUSCH CC set, can determine in the following ways: the number of supposing the member carrier in PDSCH CC set is P, the number of the member carrier in PUSCH CC set is Q, has the incidence relation of the SIB2 that Q1 PUSCH CC and the PDSCH CC PDSCH CC in gathering do not fix in Q PUSCH CC.M=P+Q1 member carrier so.
Wherein, the value of the PDCCH search volume configuration relevant parameter that each carrier wave is corresponding can be identical, also can be different, in the present embodiment, be introduced as an example of the previous case example.Physical record mode is as follows:
Suppose that the CA ability information that UE reports shows that UE supports N member carrier of polymerization; Meanwhile, suppose that the carrier number comprising in PDSCH/PUSCH CC set is M, M≤N, is designated as Mi by PDCCH search volume configuration relevant parameter, i=1, and 2 ..., M1≤M
i≤ N, and
any one member carrier in PDSCH/PUSCH CC set, CCE polymerization grade [1,2,4 in the PDCCH search volume that i PDSCH/PUSCH CC is corresponding, 8] number of corresponding candidate PDCCH is respectively Mi*[6,6,2,2], i.e. [Mi*6, Mi*6, Mi*2, Mi*2]; So, actual PDCCH blind check total degree=12+2*(M1*(6+6+2+2 of UE)+... Mi*(6+6+2+2)+... MM*(6+6+2+2)=12+32* (M1+ ... Mi+ ... MM).
On the other hand, in the present embodiment, performing step at 620 o'clock, base station is in the CA ability information according to above-mentioned PDSCH/PUSCH CC gathers and UE reports, while confirming PDCCH search volume corresponding to above-mentioned any one member carrier configuration relevant parameter (being Mi), the operation rule that can adopt has multiple, for example
wherein,
When
when value is integer, base station is all set to the value of PDCCH search volume configuration relevant parameter corresponding each PDSCH/PUSCH CC
like this, the value of the Mi that any one PDSCH/PUSCH CC is corresponding is all identical,
When
when value is not integer, base station is first all set to the initial value of PDCCH search volume configuration relevant parameter corresponding each PDSCH/PUSCH CC
the value of rounding,
distribution priority based on specifying again, will
remainder according to default allocation unit (also referred to as granularity), distribute to successively corresponding PDSCH/PUSCH CC, thereby the initial value to the each self-corresponding PDCCH of these PDSCH/PUSCH CC search volume configuration relevant parameter is made further adjustment, obtain the final value of PDCCH search volume configuration relevant parameter, wherein, the distribution priority of Primary CC is the highest; For example, base station is first all set to the initial value of PDCCH search volume configuration relevant parameter corresponding each PDSCH/PUSCH CC
then, will
remainder, take 1 as granularity priority allocation is to Primary CC, if there is residue, to remain again numerical value take 1 as granularity, carrier index based on other PDSCH/PUSCH CC order (by CIF(carrier indicator field, carrier wave indication information territory) indication, can from size to, also can be from small to large) distribute to corresponding PDSCH/PUSCH CC, so that the initial value of PDCCH search volume relevant configured parameter corresponding each PDSCH/PUSCH CC is adjusted into final value; Like this, whether the final value of the PDCCH search volume relevant configured parameter that any one PDSCH/PUSCH CC is corresponding, be Primary CC or can obtain according to its carrier index according to it,
On the other hand, in the above-described embodiments, the CCE original position of the PDCCH search volume under every kind of CCE polymerization grade of UE is continued to use existing definition.
Step 630: base station selects at least one candidate PDCCH to send DCI to UE in fixed candidate PDCCH.
In the above-described embodiments, base station is having determined after the PDCCH search volume configuration relevant parameter that in PDSCH/PUSCH CC set, each member carrier is corresponding, can adopt high-level signaling (as, RRC signaling) PDCCH search volume configuration relevant parameter corresponding each member carrier is notified to UE, also can be by after PDSCH/PUSCH CC set notice UE, make UE adopt with the identical operation rule of base station agreement and calculate the PDCCH search volume configuration relevant parameter that in PDSCH/PUSCH CC set, each member carrier is corresponding.
Certainly, base station also can, by the number of the candidate PDCCH under each polymerization grade that in finally definite PDSCH/PUSCH CC set, each member carrier is corresponding, directly be notified to UE by high-level signaling, does not repeat them here.
Corresponding to above-described embodiment, to consult shown in Fig. 7, in the embodiment of the present invention, the detailed process that UE configured and applied PDCCH resource according to base station indication is as follows:
Step 700:UE receives the member carrier collection information that network side sends; As, UE determines that base station is the PDSCH/PUSCH CC set of UE configuration.
Member carrier collection information and the local CA ability of step 710:UE based on obtaining, determine respectively in corresponding member carrier collection, in PDCCH search volume corresponding to each member carrier, the number of candidate PDCCH under each control channel Elements C CE polymerization grade, makes local PDCCH blind check total degree in PDCCH search volume corresponding to each member carrier be no more than the local maximum PDCCH blind check number of times of supporting.
In execution step 710 processes, when UE is according to the member carrier collection information obtaining and local CA ability, confirm in corresponding member carrier collection, in PDCCH search volume corresponding to any one member carrier, when the number of candidate PDCCH under each CCE polymerization grade, first,, according to above-mentioned member carrier collection and local CA ability, confirm the PDCCH search volume relevant configured parameter that above-mentioned any one member carrier is corresponding; Then,, based on the mapping relations of formulating in existing standard agreement, confirm that the PDCCH that above-mentioned any one member carrier is corresponding explores in space, the number of initial candidate PDCCH under each CCE polymerization grade; Finally, calculate respectively the product of the number of candidate PDCCH initial under above-mentioned PDCCH search volume configuration relevant parameter and each CCE polymerization grade, by result of calculation as in PDCCH search volume corresponding to above-mentioned any one member carrier, the number of the candidate PDCCH under each CCE polymerization grade.
Wherein, the value of the PDCCH search volume configuration relevant parameter that each carrier wave is corresponding can be identical, also can be different, in the present embodiment, be introduced as an example of the previous case example.The same base station of its recording mode, specific as follows:
The CA ability of supposing UE shows that UE supports N member carrier of polymerization; Meanwhile, suppose that the carrier number comprising in PDSCH/PUSCH CC set is M, M≤N, is designated as Mi by PDCCH search volume configuration relevant parameter, i=1, and 2 ..., M1≤Mi≤N, and
any one member carrier in PDSCH/PUSCH CC set, CCE polymerization grade [1,2,4 in the PDCCH search volume that i PDSCH/PUSCH CC is corresponding, 8] number of corresponding candidate PDCCH is respectively Mi*[6,6,2,2], i.e. [Mi*6, Mi*6, Mi*2, Mi*2]; So, actual PDCCH blind check total degree=12+2*(M1*(6+6+2+2 of UE)+... Mi*(6+6+2+2)+... MM*(6+6+2+2)=12+32* (M1+ ... Mi+ ... MM).
In the above-described embodiments, UE is in PDSCH/PUSCH CC set and local CA ability based on obtaining, while confirming PDCCH search volume corresponding to above-mentioned any one member carrier configuration relevant parameter, the indication that can issue by high-level signaling according to base station, determine the PDCCH search volume configuration relevant parameter arranging for above-mentioned any one member carrier, this PDCCH search volume configuration relevant parameter is the PDSCH/PUSCH CC set of base station based on issuing to UE and the CA capacity calculation of UE; Or, UE also can first determine the member carrier number M in the PDSCH/PUSCH CC set obtaining, and the member carrier number N of polymerization is supported in this locality of determining local CA ability sign, then, adopt again the operation rule with base station agreement, member carrier number M based on knowing and the local member carrier number N of supporting polymerization, calculate the PDCCH search volume configuration relevant parameter (being Mi) that above-mentioned any one member carrier is corresponding.In the time calculating PDCCH search volume relevant configured parameter corresponding to i PDSCH/PUSCH, the operation rule that UE can adopt has multiple, for example,
wherein,
When
when value is integer, UE is all set to the value of PDCCH search volume configuration relevant parameter corresponding each PDSCH/PUSCH CC
like this, the value of the Mi that any one PDSCH/PUSCH CC is corresponding is all identical,
When
when value is not integer, UE is first all set to the initial value of PDCCH search volume configuration relevant parameter corresponding each PDSCH/PUSCH CC
the value of rounding,
distribution priority based on specifying again, will
remainder according to default allocation unit (also referred to as granularity), distribute to successively corresponding PDSCH/PUSCH CC, thereby the initial value to the each self-corresponding PDCCH of these PDSCH/PUSCH CC search volume configuration relevant parameter is made further adjustment, obtain the final value of PDCCH search volume configuration relevant parameter, wherein, the distribution priority of Primary CC is the highest; For example, base station is first all set to the initial value of PDCCH search volume configuration relevant parameter corresponding each PDSCH/PUSCH CC
then, will
remainder, take 1 as granularity priority allocation is to Primary CC, if there is residue, to remain again numerical value take 1 as granularity, carrier index based on other PDSCH/PUSCH CC order (by CIF(carrier indicator field, carrier wave indication information territory) indication, can from size to, also can be from small to large) distribute to corresponding PDSCH/PUSCH CC, so that the initial value of PDCCH search volume relevant configured parameter corresponding each PDSCH/PUSCH CC is adjusted into final value; Like this, whether the final value of the PDCCH search volume relevant configured parameter that any one PDSCH/PUSCH CC is corresponding, be Primary CC or can obtain according to its carrier index according to it,
Step 720:UE carries out blind check on fixed candidate PDCCH, the DCI sending to obtain network side.
Below by three kinds of practical application scenes, the implementation result of above-described embodiment is specifically described.
Scene 1: suppose that the CA ability of UE is for supporting 2 carrier waves of polymerization, i.e. N=2, and the number that base station is the PDSCH/PUSCH CC set-inclusion member carrier of UE configuration is 1, i.e. M=1.So, in the definition of original search volume based on Rel-10, the number of the candidate PDCCH of CCE polymerization grade [1,2,4,8] correspondence is respectively [6,6,2,2], and the PDCCH blind check total degree of the actual execution of UE is 12+2*[6+6+2+2]=44; Adopt the PDCCH resource that above-described embodiment provides to strengthen collocation method, base station and UE all can determine, CCE polymerization grade [1 in PDCCH search volume, 2,4,8] number of corresponding candidate PDCCH can be respectively 2*[6,6,2,2]=[12,12,4,4], the PDCCH blind check total degree that UE carries out in exclusive PDCCH search volume is 2*[12+12+4+4]=64, the PDCCH blind check total degree of the actual execution of UE is 12+64=76.
Scene 2: suppose that the CA ability that UE reports is 4 carrier waves of support polymerization, i.e. N=4, and the number that base station is the member carrier of the PDSCH/PUSCH CC set-inclusion of UE configuration is 2, i.e. M=2.So, in the definition of original search volume based on Rel-10, CCE polymerization grade [1 in PDCCH search volume corresponding to each PDSCH/PUSCH CC, 2,4,8] number of corresponding candidate PDCCH is respectively [6,6,2,2], the PDCCH blind check total degree of the actual execution of UE is 12+2*[6+6+2+2]=44, adopt the PDCCH resource that above-described embodiment provides to increase collocation method, base station and UE all can determine, the CCE polymerization grade [1 of UE in PDCCH search volume corresponding to PDSCH/PUSCH CC1, 2, 4, 8] number of corresponding candidate PDCCH can be respectively 2*[6, 6, 2, 2]=[12, 12, 4, 4], CCE polymerization grade [1 in PDCCH search volume corresponding to PDSCH/PUSCH CC2, 2, 4, 8] number of corresponding candidate PDCCH can be respectively 2*[6, 6, 2, 2]=[12, 12, 4, 4], the PDCCH blind check total degree that UE carries out in exclusive PDCCH search volume is: 2*[12+12+4+4]+2*[12+12+4+4]=128, , the PDCCH blind check total degree of the actual execution of UE is 12+128=140.
Scene 3: suppose that the CA ability that UE reports is 4 carrier waves of support polymerization, i.e. N=4, and the number that base station is the member carrier of the PDSCH/PUSCH CC set-inclusion of UE configuration is 3, i.e. M=3.So, in the definition of original search volume based on Rel-10, CCE polymerization grade [1 in PDCCH search volume corresponding to each PDSCH/PUSCH CC, 2,4,8] number of corresponding candidate PDCCH e is respectively [6, 6, 2,2], the PDCCH blind check total degree of the actual execution of UE is 12+2*[6+6+2+2]=44, , if adopting the PDCCH resource increase collocation method PDSCH/PUSCH CC1 that above-described embodiment provides is Primary CC, base station and UE all can determine, if PDSCH/PUSCH CC1 is Primary CC, so, CCE polymerization grade [1 in PDCCH search volume corresponding to PDSCH/PUSCH CC1, 2, 4, 8] number of corresponding candidate PDCCH can be respectively 2*[6, 6, 2, 2]=2*[12, 12, 4, 4], CCE polymerization grade [1 in PDCCH search volume corresponding to PDSCH/PUSCH CC2, 2, 4, 8] number of corresponding candidate PDCCH can be respectively 1*[6, 6, 2, 2]=[6, 6, 2, 2], CCE polymerization grade [1 in PDCCH search volume corresponding to PDSCH/PUSCH CC3, 2, 4, 8] number of corresponding candidate PDCCH candidate can be respectively 1*[6, 6, 2, 2]=[6, 6, 2, 2], the PDCCH blind check total degree of carrying out in the exclusive PDCCH search volume of UE is 2*[12+12+4+4]+2*[6+6+2+2]+2*[6+6+2+2]=128, , the PDCCH blind check total degree of the actual execution of UE is 12+128=140.
As can be seen here, adopt the PDCCH resource that the embodiment of the present invention is formulated to strengthen allocation plan, make base station and UE all in conjunction with the member carrier collection for UE configuration and the CA ability information of UE, determine in member carrier collection, in PDCCH search volume corresponding to each member carrier, the number of candidate PDCCH under each CCE polymerization grade, like this, base station just can send DCI to UE on definite candidate PDCCH, and UE can carry out the DCI that blind check issues to obtain base station at definite candidate PDCCH; Thereby both can be in UE ability allowed band, greatly promote the PDCCH blind check total degree of the actual execution of UE, and then avoid PDCCH to block, elevator system performance, can make again the PDCCH blind check total degree of the actual execution of UE be no more than the maximum PDCCH blind check number of times that UE supports.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (14)
1. a configuration application process for PDCCH resource, is characterized in that, comprising:
The carrier polymerization capability information that receiving terminal UE reports;
Determine the member carrier collection for described UE configuration;
According to the member carrier collection for described UE configuration and the carrier polymerization capability information of described UE, determine respectively in the member carrier collection for described UE configuration, in PDCCH search volume corresponding to each member carrier, the number of candidate PDCCH under each control channel Elements C CE polymerization grade, makes the PDCCH blind check total degree of UE in PDCCH search volume corresponding to each member carrier be no more than the maximum PDCCH blind check number of times that UE supports;
In fixed candidate PDCCH, select at least one candidate PDCCH to send Downlink Control Information to UE;
Wherein, determine in the member carrier collection for described UE configuration, in PDCCH search volume corresponding to any one member carrier, the number of the candidate PDCCH under each CCE polymerization grade, comprising:
According to the member carrier collection for described UE configuration and the carrier polymerization capability information of described UE, confirm the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding;
Based on the mapping relations of formulating in existing standard agreement, confirm that the PDCCH that described any one member carrier is corresponding explores in space, the number of initial candidate PDCCH under each CCE polymerization grade;
Calculate respectively the product of the number of candidate PDCCH initial under described PDCCH search volume relevant configured parameter and each CCE polymerization grade, by result of calculation as in PDCCH search volume corresponding to described any one member carrier, the number of the candidate PDCCH under each CCE polymerization grade.
2. the method for claim 1, is characterized in that, according to the member carrier collection for described UE configuration and the carrier polymerization capability information of described UE, confirms the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding, comprising:
Determine for the member carrier number in the member carrier collection of described UE configuration;
Determine that UE that carrier polymerization capability information that described UE reports characterizes supports the member carrier number of polymerization;
Adopt default operation rule, the member carrier number based in described member carrier collection and UE support the member carrier number of polymerization, calculate the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding.
3. method as claimed in claim 2, it is characterized in that, adopt default operation rule, the member carrier number based in described member carrier collection and UE support the member carrier number of polymerization, calculate the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding, comprising:
Adopt operation rule
calculate and obtain described PDCCH search volume configuration relevant parameter, if
value is integer, the described final value for the PDCCH search volume configuration relevant parameter that in the member carrier collection of UE configuration, each member carrier is corresponding is all set to
; If
value is not integer, first the initial value of the PDCCH search volume configuration relevant parameter that in the member carrier collection of described UE configuration, each member carrier is corresponding is all set to
the value of rounding, then based on specify distribution priority, will
remainder according to default granularity, distribute to successively corresponding member carrier, so that the initial value of PDCCH search volume configuration relevant parameter corresponding corresponding member carrier is adjusted into final value, wherein, the distribution priority of main member carrier is the highest, and N is that the carrier polymerization capability information that UE reports shows that UE supports the member carrier number of polymerization, M is the carrier number comprising in PDSCH/PUSCH member carrier collection, M≤N.
4. the method as described in claim 1,2 or 3, it is characterized in that, adopt high-level signaling that the PDCCH search volume configuration relevant parameter that in the member carrier collection for described UE configuration, each member carrier is corresponding is sent to described UE, or, adopt identical operation rule to calculate the PDCCH search volume configuration relevant parameter for each member carrier is corresponding in the member carrier collection of described UE configuration with described UE agreement.
5. a configuration application process for PDCCH resource, is characterized in that, comprising:
Receive the member carrier collection information that network side sends;
Based on described member carrier collection information and local carrier aggregation capacity, determine respectively in corresponding member carrier collection, in PDCCH search volume corresponding to each member carrier, the number of candidate PDCCH under each control channel Elements C CE polymerization grade, makes local PDCCH blind check total degree in PDCCH search volume corresponding to each member carrier be no more than the local maximum PDCCH blind check number of times of supporting;
On fixed candidate PDCCH, carry out blind check, the Downlink Control Information sending to obtain network side;
Wherein, based on described member carrier collection information and local carrier aggregation capacity, confirm in corresponding member carrier collection, in PDCCH search volume corresponding to any one member carrier, the number of the candidate PDCCH under each CCE polymerization grade, comprising:
Based on described member carrier collection and local carrier aggregation capacity, confirm the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding;
Based on the mapping relations of formulating in existing standard agreement, confirm that the PDCCH that described any one member carrier is corresponding explores in space, the number of initial candidate PDCCH under each CCE polymerization grade;
Calculate respectively the product of the number of candidate PDCCH initial under described PDCCH search volume configuration relevant parameter and each CCE polymerization grade, by result of calculation as in PDCCH search volume corresponding to described any one member carrier, the number of the candidate PDCCH under each CCE polymerization grade.
6. method as claimed in claim 5, is characterized in that, based on described member carrier collection and local carrier aggregation capacity, confirms the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding, comprising:
The high-level signaling issuing according to network side is determined the PDCCH search volume configuration relevant parameter arranging for described any one member carrier, and this PDCCH search volume configuration relevant parameter is that the carrier aggregation capacity of network side based on described member carrier collection and described this locality calculates;
Or
Determine the member carrier number in described member carrier collection, determine the member carrier number of this locality support polymerization of local carrier aggregation capacity sign, adopt the operation rule with network side agreement, member carrier number based in described member carrier collection and the local member carrier number of supporting polymerization, calculate the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding.
7. method as claimed in claim 6, it is characterized in that, adopt the operation rule with network side agreement, member carrier number based in described member carrier collection and the local member carrier number of supporting polymerization, calculate the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding, comprising:
Adopt operation rule
calculate and obtain described PDCCH search volume configuration relevant parameter, if
value is integer, the described final value for the PDCCH search volume configuration relevant parameter that in the member carrier collection of UE configuration, each member carrier is corresponding is all set to
if
value is not integer, first the initial value of the PDCCH search volume configuration relevant parameter that in the member carrier collection of described UE configuration, each member carrier is corresponding is all set to
the value of rounding, then based on specify distribution priority, will
remainder according to default granularity, distribute to successively corresponding member carrier, so that the initial value of PDCCH search volume configuration relevant parameter corresponding corresponding member carrier is adjusted into final value, wherein, the distribution priority of main member carrier is the highest, and N is that the carrier polymerization capability information that UE reports shows that UE supports the member carrier number of polymerization, M is the carrier number comprising in PDSCH/PUSCH member carrier collection, M≤N.
8. a configuration application apparatus for PDCCH resource, is characterized in that, comprising:
The first communication unit, the carrier polymerization capability information reporting for receiving terminal UE;
Processing unit, for determining the member carrier collection for described UE configuration, and according to the member carrier collection for described UE configuration and the carrier polymerization capability information of described UE, determine respectively in the member carrier collection for described UE configuration, in PDCCH search volume corresponding to each member carrier, the number of candidate PDCCH under each control channel Elements C CE polymerization grade, makes the PDCCH blind check total degree of UE in PDCCH search volume corresponding to each member carrier be no more than the maximum PDCCH blind check number of times that UE supports;
Second communication unit, for selecting at least one candidate PDCCH to send Downlink Control Information to UE at fixed candidate PDCCH;
Wherein, described processing unit is determined in the member carrier collection for described UE configuration, in PDCCH search volume corresponding to any one member carrier, when the number of candidate PDCCH under each CCE polymerization grade, according to the member carrier collection for described UE configuration and the carrier polymerization capability information of described UE, confirm the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding, and mapping relations based on formulating in existing standard agreement, confirm that the PDCCH that described any one member carrier is corresponding explores in space, the number of initial candidate PDCCH under each CCE polymerization grade, and calculate respectively the product of the number of candidate PDCCH initial under described PDCCH search volume relevant configured parameter and each CCE polymerization grade, by result of calculation as in PDCCH search volume corresponding to described any one member carrier, the number of candidate PDCCH under each CCE polymerization grade.
9. device as claimed in claim 8, it is characterized in that, described processing unit is according to the member carrier collection for described UE configuration and the carrier polymerization capability information of described UE, when the PDCCH search volume that described in confirming, any one member carrier is corresponding configures relevant parameter, determine for the member carrier number in the member carrier collection of described UE configuration, and determine that UE that the carrier polymerization capability information that reports of described UE characterizes supports the member carrier number of polymerization, and adopt default operation rule, member carrier number based in described member carrier collection and UE support the member carrier number of polymerization, calculate the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding.
10. device as claimed in claim 9, it is characterized in that, described processing unit adopts default operation rule, member carrier number based in described member carrier collection and UE support the member carrier number of polymerization, when the PDCCH search volume that described in calculating, any one member carrier is corresponding configures relevant parameter, adopt operation rule
calculate and obtain described PDCCH search volume configuration relevant parameter, if
value is integer, the described final value for the PDCCH search volume configuration relevant parameter that in the member carrier collection of UE configuration, each member carrier is corresponding is all set to
if
value is not integer, first the initial value of the PDCCH search volume configuration relevant parameter that in the member carrier collection of described UE configuration, each member carrier is corresponding is all set to
the value of rounding, then based on specify distribution priority, will
remainder according to default granularity, distribute to successively corresponding member carrier, so that the initial value of PDCCH search volume configuration relevant parameter corresponding corresponding member carrier is adjusted into final value, wherein, the distribution priority of main member carrier is the highest, and N is that the carrier polymerization capability information that UE reports shows that UE supports the member carrier number of polymerization, M is the carrier number comprising in PDSCH/PUSCH member carrier collection, M≤N.
11. devices as described in claim 8,9 or 10, it is characterized in that, described second communication unit adopts high-level signaling that the PDCCH search volume configuration relevant parameter that in the member carrier collection for described UE configuration, each member carrier is corresponding is sent to described UE, or described second communication unit adopts identical operation rule to calculate the PDCCH search volume configuration relevant parameter for each member carrier is corresponding in the member carrier collection of described UE configuration with described UE agreement.
The configuration application apparatus of 12. 1 kinds of PDCCH resources, is characterized in that, comprising:
The first communication unit, the member carrier collection information sending for receiving network side;
Control unit, for the carrier aggregation capacity based on described member carrier collection information and this locality, determine respectively in corresponding member carrier collection, in PDCCH search volume corresponding to each member carrier, the number of candidate PDCCH under each control channel Elements C CE polymerization grade, makes local PDCCH blind check total degree in PDCCH search volume corresponding to each member carrier be no more than the local maximum PDCCH blind check number of times of supporting;
Second communication unit carries out blind check on fixed candidate PDCCH, the Downlink Control Information sending to obtain network side;
Wherein, described control unit is based on described member carrier collection information and local carrier aggregation capacity, confirm in corresponding member carrier collection, in PDCCH search volume corresponding to any one member carrier, when the number of candidate PDCCH under each CCE polymerization grade, based on described member carrier collection and local carrier aggregation capacity, confirm the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding, and mapping relations based on formulating in existing standard agreement, confirm that the PDCCH that described any one member carrier is corresponding explores in space, the number of initial candidate PDCCH under each CCE polymerization grade, and calculate respectively the product of the number of candidate PDCCH initial under described PDCCH search volume configuration relevant parameter and each CCE polymerization grade, by result of calculation as in PDCCH search volume corresponding to described any one member carrier, the number of candidate PDCCH under each CCE polymerization grade.
13. devices as claimed in claim 12, it is characterized in that, described control unit is based on described member carrier collection and local carrier aggregation capacity, when the PDCCH search volume that described in confirming, any one member carrier is corresponding configures relevant parameter, the high-level signaling issuing according to network side is determined the PDCCH search volume configuration relevant parameter arranging for described any one member carrier, and this PDCCH search volume configuration relevant parameter is that the carrier aggregation capacity of network side based on described member carrier collection and described this locality calculates; Or, determine the member carrier number in described member carrier collection, determine the member carrier number of this locality support polymerization of local carrier aggregation capacity sign, adopt the operation rule with network side agreement, member carrier number based in described member carrier collection and the local member carrier number of supporting polymerization, calculate the PDCCH search volume configuration relevant parameter that described any one member carrier is corresponding.
14. devices as claimed in claim 13, it is characterized in that, described control unit adopts the operation rule with network side agreement, member carrier number based in described member carrier collection and the local member carrier number of supporting polymerization, when the PDCCH search volume that described in calculating, any one member carrier is corresponding configures relevant parameter, adopt operation rule
calculate and obtain described PDCCH search volume configuration relevant parameter, if
value is integer, the described final value for the PDCCH search volume configuration relevant parameter that in the member carrier collection of UE configuration, each member carrier is corresponding is all set to
if
value is not integer, first the initial value of the PDCCH search volume configuration relevant parameter that in the member carrier collection of described UE configuration, each member carrier is corresponding is all set to
the value of rounding, then based on specify distribution priority, will
remainder according to default granularity, distribute to successively corresponding member carrier, so that the initial value of PDCCH search volume configuration relevant parameter corresponding corresponding member carrier is adjusted into final value, wherein, the distribution priority of main member carrier is the highest, and N is that the carrier polymerization capability information that UE reports shows that UE supports the member carrier number of polymerization, M is the carrier number comprising in PDSCH/PUSCH member carrier collection, M≤N.
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| PCT/CN2012/080736 WO2013067839A1 (en) | 2011-11-10 | 2012-08-29 | Pdcch resource allocation method and device |
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