CN105763294B - Control information processing method and device - Google Patents

Abstract

The invention discloses control information processing method and devices, this method comprises: distributing radio network temporary identifier RNTI for target UE UE, wherein, the RNTI includes: part 1 and part 2, wherein, scrambling of the part 1 for physical downlink control channel PDCCH or the cyclic redundancy check code CRC bit for enhancing Physical Downlink Control Channel EPDCCH；The PDCCH or EPDCCH is sent to the target UE, wherein the PDCCH and the EPDCCH have Q^(L)A possible position, the corresponding control channel unit CCE index in each position or enhancing control channel unit ECCE index are according to location index m, the part 1 and search space parameter u^(L)Determining, solve the problems, such as that carrying out control information processing in the insufficient situation of RNTI caused by being limited by bit number in the related technology exists.

Description

Control information processing method and device

Technical Field

The present invention relates to the field of communications, and in particular, to a control information processing method and apparatus.

Background

In LTE, Downlink Control Information (DCI) is carried by a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH). In general, there may be multiple PDCCHs or EPDCCHs within one subframe. A terminal (User Equipment, UE for short) needs to demodulate DCI in PDCCH or EPDCCH first, and then can demodulate broadcast messages, paging, data of UE, etc. belonging to the UE at a corresponding resource location.

Currently, in a related protocol, each PDCCH or EPDCCH includes 16-bit CRC check bits, and the UE is configured to verify whether the received PDCCH or EPDCCH is correct, and the CRC is scrambled using a Radio Network Temporary Identifier (RNTI) associated with the UE, so that the UE can determine which PDCCHs or EPDCCHs need to be received by the UE and which are sent to other UEs. RNTIs that can be used for scrambling include: C-RNTI (cell RNTI, cell radio network temporary identifier), Paging radio network temporary identifier (Paging RNTI, P-RNTI for short), and the like.

In LTE, the RNTI is 16 bits, and 2^16 RNTIs can be supported in total. When there are more UEs in the network that need to send data, for example, in a scenario of massive machine terminal communication (MMC), there may be tens of thousands or even hundreds of thousands of user equipments under each network, and then there is a problem of insufficient RNTI.

In the related art, an effective solution has not been proposed so far for the problem of control information processing under the condition of insufficient RNTI due to the limitation of the number of bits.

Disclosure of Invention

The invention provides a control information processing method and a control information processing device, which are used for at least solving the problems of control information processing under the condition of insufficient RNTI caused by bit number limitation in the related art.

According to an aspect of the present invention, there is provided a control information processing method including: allocating a Radio Network Temporary Identifier (RNTI) for target User Equipment (UE), wherein the RNTI comprises: the number of bits of the part 1 is the same as the number of Cyclic Redundancy Check (CRC) bits of a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), the bits are set as W bits, the number of bits of the part 2 is X, and W, X are positive integers larger than 0, wherein the part 1 is used for scrambling the CRC bits of the PDCCH or the Enhanced Physical Downlink Control Channel (EPDCCH); transmitting the PDCCH or the EPDCCH to the target UE, wherein the PDCCH and the EPDCCH have Q^(L)Each possible position, a Control Channel Element (CCE) index or enhanced CCE (ECCE) index corresponding to each possible position is based on a position index m, the portion 1, and a search space parameter u^(L)Is determined, where L is the aggregation level, Q^(L)Is the number of PDCCH or EPDCCH candidate positions in the search space corresponding to L, Q^(L)Is an integer, m is 0,1 … Q^(L)-1。

Further, according to the position index m,The part 1 and the search space parameters u^(L)Determining the CCE index or ECCE index corresponding to each location comprises:

when the index is PDCCH, the CCE index corresponding to the mth position is:

wherein i is 0,1,2 … L-1; or,

when the current ECCE index is EPDCCH, the ECCE index corresponding to the mth position is:

wherein i is 0,1,2 … L-1;

wherein k is a subframe index where a PDCCH or EPDCCH transmitted to a target UE is located, and N is_CCE,kFor the total number of CCEs in subframe k of the carrier where the PDCCH is transmitted, M^(L)Is a set of constants;

N_ECCE,kthe total number of ECCEs of the carrier where the EPDCCH is sent in the 0 th or 1 st set of the subframe k;

Y_kdetermined according to said part 1.

Further, the u is determined by at least one of the following ways^(L): allocating the u to the target UE^(L)(ii) a Agreeing on the u with the target UE^(L)。

Further, the u is allocated to the target UE^(L)The method comprises the following steps:

said u is^(L)Is an element of set S1; in the case of the PDCCH, when being EPDCCH: or,

said u is^(L)Is an element of set S2, in the case of PDCCH: when being EPDCCH: wherein K is a positive integer not less than 2.

Further, agreeing on the u with the target UE^(L)The method comprises the following steps: appointing a set T with the target UE, wherein the set T is at least one of the following: the set S1, the set S2, a subset of the set S1, a subset of the set S2; agreeing with the target UE to determine the u from the part 2 and elements in the set T^(L)。

Further, the u is determined according to the part 2 and the elements in the set T in agreement with the target UE^(L)The method comprises the following steps: agreeing with the target UE about correspondence between the part 2 and elements in the set T, or the u^(L)Different sub-frames correspond to different elements in the set T; determining the u according to the part 2 and a subframe index k^(L)Let the number of elements in the set T be P, the pth element be s (P), where P is 0,1 … P-1; in subframe k, for L, the u of the target UE^(L)Is determined as follows:

u^(L)＝u_k；

or u_k＝S(Z_KModP)；

Z_k＝S(CZ_K-1)ModE；

Z_-1F, where F is the 10-ary number corresponding to portion 2 of the X bits, E ^ 2^ X, or E ^ 2^ X +1, C is a constant with E.

Further, scrambling is performed on a physical downlink traffic channel or a physical uplink traffic channel scheduled by the PDCCH or the EPDCCH according to the RNTI or the part 1 of the RNTI or the part 2 of the RNTI.

Further, L is one or more values in the set {1,2,4,8,16,32 };

when L is 1 or 2, 0 is not more than Q^(L)Less than or equal to 6; when L is 4,8,16 or 32, 0 is not more than Q^(L)2 or less, wherein 1 or more Q^(L)In (1), at least one Q^(L)Is not equal to 0;

k is a subframe index k of the PDCCH or EPDCCH sent to the target UE, which is 0,1,2 …, 9;

Y_kdetermining from said fraction 1, Y_k＝(A·Y_k-1) modD, wherein D ^ 2^ W +1, Y_-1B is a 10-ary number corresponding to part 1 bit of the RNTI.

Further, when being PDCCH, M is 1 or 2 when L is^(L)6; when L is 4 or 8, M^(L)＝2；

The total number of CCEs of subframe k is N_CCE,kThis N_CCE,kThe CCE indexes are 0,1 …, N_CCE,k-1，N_CCE,kSatisfies the following conditions:

a is a positive integer relative to D,

for PDCCH, in particular, when W is 16, a is 39827;

when the EPDCCH is adopted, M is more than or equal to 0^(L)≤8；

Total number of ECCEs of subframe k is N_CCE,kThis N_CCE,kEach ECCE index is 0,1 …. N_ECCE,k-1，N_ECCE,kSatisfies the following conditions:

for EPDCCH, in particular, when W is 16, for the 0 th set of EPDCCH: 39827, for EPDCCH set 1: 39829.

According to another aspect of the present invention, there is provided a control information processing method including: determining a Radio Network Temporary Identifier (RNTI) allocated by a network, wherein the RNTI comprises a part 1 and a part 2, the number of bits of the part 1 is the same as the number of Cyclic Redundancy Check (CRC) bits of a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), the RNTI is set as a W bit, the number of bits of the part 2 is X, W, X are positive integers which are larger than 0, and the part 1 is used for descrambling the CRC bits of the Physical Downlink Control Channel (PDCCH) or the Enhanced Physical Downlink Control Channel (EPDCCH); receiving the PDCCH or the EPDCCH transmitted by the network, wherein the PDCCH and the EPDCCH have Q^(L)Each possible position is corresponding to a Control Channel Element (CCE) index or an Enhanced Control Channel Element (ECCE) index according to a position index m, the RNTI part 1 and a search space parameter u^(L)Is determined, where L is the aggregation level, Q^(L)Is the number of PDCCH or EPDCCH candidate positions in the search space corresponding to L, Q^(L)Is an integer, m is 0,1 … Q^(L)-1，u^(L)A search space parameter for PDCCH or EPDCCH.

Further, according to the position index m, the part 1 and the search space parameter u^(L)Determining the CCE index or ECCE index corresponding to each location comprises:

when the index is PDCCH, the CCE index corresponding to the mth position is: or,

wherein i is 0,1,2 … L-1;

when the current ECCE index is EPDCCH, the ECCE index corresponding to the mth position is:

wherein i is 0,1,2 … L-1;

wherein k is a subframe index where a PDCCH or EPDCCH transmitted to a target UE is located, and N is_CCE,kFor the total number of CCEs in subframe k of the carrier where the PDCCH is transmitted, M^(L)Is a set of constants;

N_ECCE,kthe total number of ECCEs of the carrier where the EPDCCH is sent in the 0 th or 1 st set of the subframe k;

Y_kdetermined according to said part 1.

Further, the u is determined by at least one of the following ways^(L): determining the u of the network allocation^(L)；

Agreeing on u with the network^(L)。

Further, determining the u of the network allocation^(L)The method comprises the following steps:

said u is^(L)Is an element of set S1; in the case of the PDCCH, when being EPDCCH: or,

said u is^(L)Is an element of set S2, in the case of PDCCH: when being EPDCCH: wherein K is a positive integer not less than 2.

Further, agreeing on said u with said network^(L)The method comprises the following steps: appointing a set T with the network, wherein the set T is at least one of the following: the set S1, the set S2, a subset of the set S1, a subset of the set S2; determining the u according to the part 2 and the elements in the set T by agreeing with the network^(L)。

Further, determining the u according to the part 2 and the elements in the set T by agreeing with the network^(L)The method comprises the following steps: agreeing on the correspondence of the part 2 and the elements in the set T, or the u^(L)Different sub-frames correspond to different elements in the set T; determining the u according to the part 2 and a subframe index k^(L)Let the number of elements in the set T be P, the pth element be s (P), where P is 0,1 … P-1; in subframe k, for L, the u of the target UE^(L)Is determined as follows:

u^(L)＝u_k；

or u_k＝S(Z_KModP)；

Z_k＝S(CZ_K-1)ModE；

Z_-1F, where F is the 10-ary number corresponding to portion 2 of the X bits, E ^ 2^ X, or E ^ 2^ X +1, C is a constant with E.

Further, scrambling is performed on a physical uplink traffic channel or a physical uplink traffic channel scheduled by the PDCCH or the EPDCCH according to the RNTI or the part 1 of the RNTI or the part 2 of the RNTI.

Further, L is one or more values in the set {1,2,4,8,16,32 };

when L is 1 or 2, 0 is not more than Q^(L)Less than or equal to 6; when L is 4,8,16 or 32, 0 is not more than Q^(L)2 or less, wherein 1 or more Q^(L)In (1), at least one Q^(L)Is not equal to 0;

k is a subframe index k of the PDCCH or EPDCCH sent to the target UE, which is 0,1,2 …, 9;

Y_kdetermining from said fraction 1, Y_k＝(A·Y_k-1) modD, wherein D ^ 2^ W +1, Y_-1B is a 10-ary number corresponding to part 1 bit of the RNTI.

Further, when being PDCCH, M is 1 or 2 when L is^(L)6; when L is 4 or 8, M^(L)＝2；

The total number of CCEs of subframe k is N_CCE,kThis N_CCE,kThe CCE indexes are 0,1 …, N_CCE,k-1，N_CCE,kSatisfies the following conditions:

a is a positive integer with D prime, and in particular, when W is 16, for PDCCH, a is 39827;

when the EPDCCH is adopted, M is more than or equal to 0^(L)≤8；

Total number of ECCEs of subframe k is N_CCE,kThis N_CCE,kEach ECCE index is 0,1 …. N_ECCE,k-1，N_ECCE,kSatisfies the following conditions:

a is a positive integer with D prime, in particular, when W is 16, for the 0 th set of EPDCCH: 39827, for EPDCCH set 1: 39829.

According to another aspect of the present invention, there is provided a control information processing apparatus including: an allocation module, configured to allocate a radio network temporary identity RNTI to a target user equipment UE, where the RNTI includes: part 1 and part 2, wherein the number of bits of part 1 is the same as the number of Cyclic Redundancy Check (CRC) bits of a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), and is set as W bits, the number of bits of part 2 is X, W, X are positive integers greater than 0, and part 1 is used for descrambling the CRC bits of the PDCCH or the EPDCCH; a sending module, configured to send the PDCCH or the EPDCCH to the target UE, where the PDCCH and the EPDCCH have a Q^(L)Each possible position is corresponding to a Control Channel Element (CCE) index or an Enhanced Control Channel Element (ECCE) index according to a position index m, the part 1 and a search space parameter u^(L)Is determined, where L is the aggregation level, Q^(L)Is the number of PDCCH or EPDCCH candidate positions in the search space corresponding to L, Q^(L)Is an integer, m is 0,1 … Q^(L)-1。

According to another aspect of the present invention, there is provided a control information processing apparatus including: determination module forDetermining a Radio Network Temporary Identifier (RNTI) allocated by a network, wherein the RNTI comprises a part 1 and a part 2, the number of bits of the part 1 is the same as the number of Cyclic Redundancy Check (CRC) bits of a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), the RNTI is set as a W bit, the number of bits of the part 2 is X, W, X are positive integers which are larger than 0, and the part 1 is used for descrambling the CRC bits of the Physical Downlink Control Channel (PDCCH) or the Enhanced Physical Downlink Control Channel (EPDCCH); a receiving module, configured to receive the PDCCH or the EPDCCH sent by the network, where the PDCCH and the EPDCCH have a Q^(L)Each possible position is corresponding to a Control Channel Element (CCE) index or an Enhanced Control Channel Element (ECCE) index according to a position index m, the part 1 and a search space parameter u^(L)Is determined, where L is the aggregation level, Q^(L)Is the number of PDCCH or EPDCCH candidate positions in the search space corresponding to L, Q^(L)Is an integer, m is 0,1 … Q^(L)-1，u^(L)A search space parameter for PDCCH or EPDCCH.

According to the invention, the radio network temporary identifier RNTI is distributed to the target user equipment UE, wherein the RNTI comprises: part 1 and part 2, wherein the number of bits of part 1 is the same as the number of Cyclic Redundancy Check (CRC) bits of a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), and is set as W bits, the number of bits of part 2 is X, W, X are positive integers greater than 0, and part 1 is used for descrambling the CRC bits of the PDCCH or the EPDCCH; transmitting the PDCCH or the EPDCCH to the target UE, wherein the PDCCH and the EPDCCH have Q^(L)Each possible position is corresponding to a Control Channel Element (CCE) index or an Enhanced Control Channel Element (ECCE) index according to a position index m, the part 1 and a search space parameter u^(L)Is determined, where L is the aggregation level, Q^(L)Is the number of PDCCH or EPDCCH candidate positions in the search space corresponding to L, Q^(L)Is an integer, m is 0,1 … Q^(L)-1, solving the problems in the related artThe problem of control information processing under the condition of insufficient RNTI caused by bit number limitation is solved, and the effect of reducing the search space blocking probability is further achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a first flowchart of a control information processing method according to an embodiment of the present invention;

FIG. 2 is a flow chart diagram two of a control information processing method according to an embodiment of the present invention;

fig. 3 is a first block diagram of a control information processing apparatus according to an embodiment of the present invention;

fig. 4 is a block diagram two of a control information processing apparatus according to an embodiment of the present invention;

fig. 5 is a flowchart of a network-side control information processing method according to a preferred embodiment of the present invention;

fig. 6 is a flowchart of a terminal-side control information processing method according to a preferred embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the present embodiment, a control information processing method is provided, and fig. 1 is a first flowchart of the control information processing method according to the embodiment of the present invention, as shown in fig. 1, the flowchart includes the following steps:

step S102, allocating a Radio Network Temporary Identifier (RNTI) for target User Equipment (UE), wherein the RNTI comprises: part 1 and part 2, wherein the number of bits in part 1 is the same as the number of Cyclic Redundancy Check (CRC) bits of a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), and is set as W bits, the number of bits in part 2 is X, W, X are positive integers greater than 0, and part 1 is used for scrambling the CRC bits of the PDCCH or the Enhanced Physical Downlink Control Channel (EPDCCH);

step S104, the PDCCH or the EPDCCH is sent to the target UE, wherein the PDCCH and the EPDCCH have Q^(L)Each possible position is corresponding to a Control Channel Element (CCE) index or an Enhanced Control Channel Element (ECCE) index according to a position index m, a part 1 of the RNTI and a search space parameter u^(L)Is determined, where L is the aggregation level, Q^(L)Is the number of PDCCH or EPDCCH candidate positions in the search space corresponding to L, Q^(L)Is an integer, m is 0,1 … Q^(L)-1。

Because CRC check bit scrambling is carried out only by adopting the first part of the RNTI, the overhead is not increased, and the realization is simpler; in addition, the position index m, the part 1 and the search space parameter u are used as the basis^(L)A CCE or ECCE index is determined, wherein a search space parameter is introduced, which may be related to the user equipment. Due to the fact that the search space parameters are added, the user equipment can determine the corresponding CCE index or ECCE index, and therefore the problem of false alarm detection caused by detection of other target UE can be solved.

In an alternative embodiment, the search space parameters include two cases, one is that the network directly allocates to the target UE, and the search space parameters directly allocated by the network are related to the target UE; in another case, the search space parameters are related to part 2 of the RNTI and correspond to the target UE, and in any case, the problem of false alarm detection caused by detection by other target UEs can be avoided.

Generally, the network allocates a target UE with an RNTI of 16+ X bits, where X is an integer greater than 0, part 1 has 16 bits, part 2 has X bits, and only part 1 is used for scrambling of CRC bits of a PDCCH or EPDCCH thereafter, and in particular, the RNTI is a C-RNTI. Scrambling is also needed for a physical downlink traffic channel or a physical uplink traffic channel scheduled by the PDCCH or the EPDCCH, and a scrambling code thereof is generated according to the RNTI or the part 1 or the part 2 of the RNTI, for example, the part 1 or the part 2 of the RNTI or the RNTI is used as an initialization value generated by the scrambling code.

According to the position index m, the above-mentioned part 1 and the search space parameter u^(L)The CCE index or ECCE index corresponding to each position is determined in more than one way, and generally, the CCE index corresponding to each position is determined in a similar way to the ECCE index, but not exactly the same way, and in an optional embodiment, when being a PDCCH, the CCE index corresponding to the m-th position is:

wherein i is 0,1,2 … L-1; or,

when the ECCE index is EPDCCH, the ECCE index corresponding to the mth location is:

wherein i is 0,1,2 … L-1;

wherein k is a subframe index where a PDCCH or EPDCCH transmitted to a target UE is located, and N is_CCE,kFor the total number of CCEs in subframe k of the carrier where the PDCCH is transmitted, M^(L)Is a set of constants; n is a radical of_ECCE,kThe total number of ECCEs of the carrier where the EPDCCH is sent in the 0 th or 1 st set of the subframe k; y is_kDetermined from this section 1.

Search space parameter u^(L)Not only one, but also oneIn alternative embodiments, u may be determined by the network for allocation to the target UE^(L)In another alternative embodiment, u may also be agreed with the target UE by the network^(L)In either way, the determined u^(L)Corresponding to the target UE, it is avoided that other UEs can detect. The other UEs herein include not only the UE with the allocated RNTI bit number of 16+ X but also the UE with the allocated RNTI bit number of 16.

The network allocates the u to the target UE^(L)In an alternative embodiment, u is not limited to one^(L)Is an element of set S1; in the case of the PDCCH,when being EPDCCH:

in another alternative embodiment, u is^(L)Is an element of set S2, in the case of PDCCH:

when being EPDCCH: wherein K is a positive integer not less than 2.

The network and the target UE agree on u^(L)There are many ways that the network may agree with the target UE with a set T, wherein the set T is at least one of: the set S1, the set S2, the subset of the set S1, the subset of the set S2, and the target UE agree to determine the u from the part 2 and the elements in the set T^(L)。

Contract with the target UEDetermining the u from the part 2 and the elements in the set T^(L)The method can comprise the following steps: agreeing with the target UE on the correspondence between the part 2 and the elements in the set T, or the u^(L)Different sub-frames correspond to different elements in the set T; determining the u according to the part 2 and the subframe index k^(L)Let the number of elements in the set T be P, and the pth element be s (P), where P is 0,1 … P-1; in subframe k, for L, u for the target UE^(L)Is determined as follows:

u^(L)＝u_k；

or u_k＝S(Z_KModP)；

Z_k＝S(CZ_K-1)ModE；

Z_-1F, where F is the 10-ary number corresponding to portion 2 of the X bits, E ^ 2^ X, or E ^ 2^ X +1, C is a constant with E.

Wherein L is one or more values from the set {1,2,4,8,16,32}, and when L is 1 or 2, 0 ≦ Q^(L)Less than or equal to 6; when L is 4,8,16 or 32, 0 is not more than Q^(L)2 or less, wherein 1 or more Q^(L)In (1), at least one Q^(L)Is not equal to 0; k is a subframe index k of the PDCCH or EPDCCH sent to the target UE, which is 0,1,2 …, 9;

Y_kdetermining from the part 1, Y_k＝(A·Y_k-1) modD, wherein D ^ 2^ W +1, Y_-1B is a 10-ary number corresponding to part 1 bit of the RNTI.

Further, when being PDCCH, M is 1 or 2 when L is^(L)6; when L is 4 or 8, M^(L)＝2；

The total number of CCEs of subframe k is N_CCE,kThis N_CCE,kThe CCE indexes are 0,1 …, N_CCE,k-1，N_CCE,kSatisfies the following conditions:

a is a positive integer with D prime, for PDCCH, when W is 16, a is 39827;

when the EPDCCH is adopted, M is more than or equal to 0^(L)≤8；

Total number of ECCEs of subframe k is N_CCE,kThis N_CCE,kEach ECCE index is 0,1 …. N_ECCE,k-1，N_ECCE,kSatisfies the following conditions:

for EPDCCH, in particular, when W is 16, for the 0 th set of EPDCCH: 39827, for EPDCCH set 1: 39829.

An embodiment of the present invention further provides a control information processing method, and fig. 2 is a second flowchart of the control information processing method according to the embodiment of the present invention, as shown in fig. 2, the flowchart includes the following steps:

step S202, a Radio Network Temporary Identifier (RNTI) allocated by a network is determined, wherein the RNTI comprises a part 1 and a part 2, the number of bits of the part 1 is the same as the number of Cyclic Redundancy Check (CRC) bits of a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), the part 1 is set as a W bit, the number of bits of the part 2 is X, W, X are positive integers which are larger than 0, and the part 1 is used for descrambling the CRC bits of the PDCCH or the Enhanced Physical Downlink Control Channel (EPDCCH);

step S204, receiving the PDCCH or the EPDCCH sent by the network, wherein the PDCCH and the EPDCCH have Q^(L)Each possible position is corresponding to a control channel element CCE index or an enhanced control channel element ECCE index according to a position index m, the part 1 and a search space parameter u^(L)Is determined, where L is the aggregation level, Q^(L)Is the number of PDCCH or EPDCCH candidate positions in the search space corresponding to L, Q^(L)Is an integer, m is 0,1 … Q^(L)-1，u^(L)A search space parameter for PDCCH or EPDCCH.

According to the position index m, the above-mentioned part 1 and the search space parameter u^(L)Determining the CCE index or ECCE index corresponding to each location may include:

when the index is PDCCH, the CCE index corresponding to the mth location is: or,

wherein i is 0,1,2 … L-1;

when the ECCE index is EPDCCH, the ECCE index corresponding to the mth location is:

wherein i is 0,1,2 … L-1;

wherein k is a subframe index where a PDCCH or EPDCCH transmitted to a target UE is located, and N is_CCE,kFor the total number of CCEs in subframe k of the carrier where the PDCCH is transmitted, M^(L)Is a set of constants; n is a radical of_ECCE,kThe total number of ECCEs of the carrier where the EPDCCH is sent in the 0 th or 1 st set of the subframe k; y is_kDetermined from this section 1.

Determining the u^(L)In one alternative embodiment, u is distributed via the network^(L)Determining, in another alternative embodiment, the u is agreed upon with the network by the target UE^(L)。

Determining the u of the network allocation^(L)The method can comprise the following steps: the u is^(L)Is an element of set S1; in the case of the PDCCH,

when being EPDCCH: or,

the u is^(L)Is an element of set S2, in the case of PDCCH: when being EPDCCH: wherein K is a positive integer not less than 2.

The target UE agrees with the network on u^(L)The method can comprise the following steps: appointing a set T with the network, wherein the set T is at least one of the following: the set S1, the set S2, the subset of the set S1, the subset of the set S2, and the network contract determine the u according to the part 2 and the elements in the set T^(L)。

Determining the u according to the element in the part 2 and the set T by agreeing with the network^(L)The method can comprise the following steps: appointing the corresponding relation between the part 2 and the elements in the set T, or the u^(L)Different sub-frames correspond to different elements in the set T; determining the u according to the part 2 and the subframe index k^(L)Let the number of elements in the set T be P, and the pth element be s (P), where P is 0,1 … P-1; in subframe k, for L, the u of the target UE^(L)Is determined as follows:

u^(L)＝u_k；

or u_k＝S(Z_KModP)；

Z_k＝S(CZ_K-1)ModE；

Z_-1Where F is the 10-ary number corresponding to the X-bit portion 2, E ^ 2^ X, or E ^ 2^ X +1, C is a constant with E, it should be noted that, for the formula, F is the 10-ary number corresponding to the X-bit portion 2, E ^ 2^ X, or E ^ 2^ X +1, C is a constant with EAnd u_k＝S(Z_KModP), the network and the UE should agree to employ the same.

Wherein L is one or more values from the set {1,2,4,8,16,32}, and when L is 1 or 2, 0 ≦ Q^(L)Less than or equal to 6; when L is 4,8,16 or 32, 0 is not more than Q^(L)2 or less, wherein 1 or more Q^(L)In (1), at least one Q^(L)Is not equal to 0;

k is a subframe index k of the PDCCH or EPDCCH sent to the target UE, which is 0,1,2 …, 9;

Y_kdetermining from the part 1, Y_k＝(A·Y_k-1) modD, wherein D ^ 2^ W +1, Y_-1B is a 10-ary number corresponding to part 1 bit of the RNTI.

Further, when being PDCCH, M is 1 or 2 when L is^(L)6; when L is 4 or 8, M^(L)＝2；

The total number of CCEs of subframe k is N_CCE,kThis N_CCE,kThe CCE indexes are 0,1 …, N_CCE,k-1，N_CCE,kSatisfies the following conditions:

a is a positive integer with D prime, for PDCCH, when W is 16, a is 39827;

when the EPDCCH is adopted, M is more than or equal to 0^(L)≤8；

Total number of ECCEs of subframe k is N_CCE,kThis N_CCE,kEach ECCE index is 0,1 …. N_ECCE,k-1，N_ECCE,kSatisfies the following conditions:

a is a positive integer with D prime, in particular, when W is 16, for the 0 th set of EPDCCH: 39827, for EPDCCH set 1: 39829.

An embodiment of the present invention provides a control information processing apparatus, which is used to implement the foregoing embodiments and preferred embodiments, and the descriptions already given are omitted here. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 3 is a first block diagram of a control information processing apparatus according to an embodiment of the present invention, as shown in fig. 3, including: an assignment module 32 and a transmission module 34, each of which is briefly described below.

An allocating module 32, configured to allocate a radio network temporary identifier RNTI to a target user equipment UE, where the RNTI includes: part 1 and part 2, wherein the number of bits in part 1 is the same as the number of Cyclic Redundancy Check (CRC) bits of a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), and is set as W bits, the number of bits in part 2 is X, W, X are positive integers greater than 0, and part 1 is used for scrambling the CRC bits of the PDCCH or the Enhanced Physical Downlink Control Channel (EPDCCH);

a sending module 34, configured to send the PDCCH or the EPDCCH to the target UE, where the PDCCH and the EPDCCH have Q^(L)The position of the one or more of the possible positions,the CCE index or ECCE index of each control channel element corresponding to the position is determined according to the position index m, the part 1 and the search space parameter u^(L)Is determined, where L is the aggregation level, Q^(L)Is the number of PDCCH or EPDCCH candidate positions in the search space corresponding to L, Q^(L)Is an integer, m is 0,1 … Q^(L)-1。

An embodiment of the present invention further provides a control information processing apparatus, and fig. 4 is a block diagram ii of the control information processing apparatus according to the embodiment of the present invention, as shown in fig. 4, including: a determination module 42 and a reception module 44, each of which is briefly described below.

A determining module 42, configured to determine a radio network temporary identifier RNTI allocated by a network, where the RNTI includes a part 1 and a part 2, where the number of bits in the part 1 is the same as the number of Cyclic Redundancy Check (CRC) bits of a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), and is set to be a W bit, the number of bits in the part 2 is X, W, X are positive integers greater than 0, and the part 1 is used for descrambling the CRC bits of the Physical Downlink Control Channel (PDCCH) or the Enhanced Physical Downlink Control Channel (EPDCCH);

a receiving module 44, configured to receive the PDCCH or EPDCCH sent by the network, where the PDCCH and the EPDCCH have Q^(L)Each possible position is corresponding to a control channel element CCE index or an enhanced control channel element ECCE index according to a position index m, the part 1 and a search space parameter u^(L)Is determined, where L is the aggregation level, Q^(L)Is the number of PDCCH or EPDCCH candidate positions in the search space corresponding to L, Q^(L)Is an integer, m is 0,1 … Q^(L)-1，u^(L)A search space parameter for PDCCH or EPDCCH.

Examples of the present invention will be further described below with reference to the above-described example in which the portion 1 is 16 bits (i.e., W ═ 16).

Example 1

Fig. 5 is a flowchart of a network-side control information processing method according to a preferred embodiment of the present invention, as shown in fig. 5, including:

in step S502, the network allocates an RNTI with a bit number of (16+ X) (X is an integer greater than 0) to the target UE. The number of X is related to the maximum number of UEs supported by the network, for example, X ═ 4, then the network can support 2^20 RNTIs at maximum. The RNTI includes 2 parts: part 1 has 16 bits and part 2 has X bits; where only part 1 is used for scrambling of CRC bits for PDCCH or EPDCCH; when the network grants downlink or uplink to the target UE, the required RNTI is C-RNTI, and in an MMC scene, the limited RNTI is often C-RNTI, so the RNTI can also be specified as a C-RNTI type RNTI.

Step S504, the network determines the search space of the target UE according to the RNTI.

Under the condition of a certain aggregation level L, when a network sends PDCCH or EPDCCH to a target UE, the PDCCH or EPDCCH has Q^(L)A possible location. The CCE or ECCE index corresponding to each position is composed of a position index m (m is 0,1 … Q)^(L)-1), part 1 bit of RNTI and search space parameters u^(L)It is determined that,

in the case of PDCCH, the m (m is 0,1 … Q)^(L)-1) the CCE index corresponding to a location is:

wherein i is 0,1,2 … L-1.

When EPDCCH is used, m (m is 0,1 … Q)^(L)-1) the CCE index corresponding to a location is:

wherein i is 0,1,2 … L-1.

Wherein, L is the number of CCEs (control channel elements) occupied by the network to allocate or agree with the target UE to transmit one PDCCH or ECCEs (enhanced control channel elements) occupied by one EPDCCH, where L is one or more values of the set {1,2,4,8,16,32 }.

Q^(L)The number of PDCCH or EPDCCH candidate positions in the search space corresponding to L. Q^(L)Is an integer, when L is 1 or 2, 0 is not more than Q^(L)Less than or equal to 6; when L is 4,8,16 or 32, 0 is not more than Q^(L)2 or less, wherein 1 or more Q^(L)In (1), at least one Q^(L)Not equal to 0.

k is a subframe index where PDCCH or EPDCCH transmitted to the target UE is located (k is 0,1,2 ….9);

N_CCE,kin order to transmit the total number of CCEs of the carrier where the PDCCH is located in the subframe k, the index of the CCEs is 0,1 …. N_CCE,k-1，N_CCE,kSatisfies the following conditions:

when L is 1 or more values of the set {1,2,4,8,16,32}, N_CCE,kAt least 1 of the above inequalities should be satisfied.

M^(L)Is a set of constants: in the PDCCH, when L is 1 or 2, M^(L)6; when L is 4 or 8, M^(L)2; when EPDCCH is used, M is more than or equal to 0^(L)Less than or equal to 8 and at least 1M^(L)Not equal to 0.

N_ECCE,kIn order to send the total number of ECCEs of the carrier wave on which the EPDCCH is located in the 0 th or 1 st set of the subframe k, the index of the ECCEs is 0,1 …. N_ECCE,k-1，N_ECCE,kSatisfies the following conditions:

when L is 1 or more values of the set {1,2,4,8,16,32}, N_ECCE,kAt least 1 of the above inequalities should be satisfied.

Y_kIs determined according to part 1 bit of the RNTI, specifically, Y_k＝(A·Y_k-1) modD, where D ═ 65537;

for PDCCH, a — 39827;

for set 0 of EPDCCH: 39827; for set 1 of EPDCCH: 39829.

u^(L)Spatial parameters are searched for PDCCH or EPDCCH, which are allocated to the target UE by the network in advance. Here, it is required that u^(L)One element of the set S1. In the case of the PDCCH, when being EPDCCH:

step S506, the network selects 1 position in the search space to transmit PDCCH or EPDCCH. This involves the network selecting a certain value of L, an element of the set {1,2,4,8,16,32} of L, from said Q^(L)And selecting one position from possible positions, transmitting the PDCCH or the EPDCCH, and scrambling the CRC bits of the PDCCH or the EPDCCH by using the 1 bit of the RNTI part before transmission.

Fig. 6 is a flowchart of a terminal-side control information processing method according to a preferred embodiment of the present invention, as shown in fig. 6, including:

step S602, configured to determine an RNTI with a network-allocated bit number of (16+ X) (X is an integer greater than 0) for the target UE. The RNTI includes 2 parts: part 1 has 16 bits and part 2 has X bits, and in particular, the RNTI herein can also be specified as a C-RNTI type RNTI;

step S604, the target UE determines a search space of the PDCCH or EPDCCH according to the RNTI, and the UE monitors the position where the network may send the PDCCH or EPDCCH. Monitoring the position where the network may send the PDCCH or EPDCCH includes detecting the position where the PDCCH or EPDCCH may be sent, and determining whether the network sends the PDCCH or EPDCCH to itself at the position according to a detection result.

In the case of PDCCH, the m (m is 0,1 … Q)^(L)-1) the CCE index corresponding to a location is:

wherein i is 0,1,2 … L-1.

When EPDCCH is used, m (m is 0,1 … Q)^(L)-1) the CCE index corresponding to a location is:

wherein i is 0,1,2 … L-1.

Wherein, L is the number of CCEs occupied by the network for allocating or agreeing with the target UE to transmit one PDCCH or one EPDCCH for the target UE, where L is one or more values of the set {1,2,4,8,16,32 }.

Q^(L)The number of PDCCH or EPDCCH candidate positions in the search space corresponding to L. Q^(L)Is an integer, when L is 1 or 2, 0 is not more than Q^(L)Less than or equal to 6; when L is 4,8,16 or 32, 0 is not more than Q^(L)2 or less, wherein 1 or more Q^(L)In (1), at least one Q^(L)Not equal to 0.

k is a subframe index where PDCCH or EPDCCH transmitted to the target UE is located (k is 0,1,2 ….9);

N_CCE,kin order to transmit the total number of CCEs of the carrier where the PDCCH is located in the subframe k, the index of the CCEs is 0,1 …. N_CCE,k-1，N_CCE,kSatisfies the following conditions:

when L is 1 or more values of the set {1,2,4,8,16,32}, N_CCE,kAt least 1 of the above inequalities should be satisfied.

M^(L)Is a set of constants: in the PDCCH, when L is 1 or 2, M^(L)6; when L is 4 or 8, M^(L)2; when EPDCCH is used, M is more than or equal to 0^(L)Less than or equal to 8 and at least 1M^(L)Not equal to 0.

N_ECCE,kIn order to send the total number of ECCEs of the carrier wave on which the EPDCCH is located in the 0 th or 1 st set of the subframe k, the index of the ECCEs is 0,1 …. N_ECCE,k-1，N_ECCE,kSatisfies the following conditions:

when L is 1 or more values of the set {1,2,4,8,16,32}, N_ECCE,kAt least 1 of the above inequalities should be satisfied.

Y_kIs determined according to part 1 bit of the RNTI, specifically, Y_k＝(A·Y_k-1)modD，

Wherein, D is 65537, Y_-1B is a 10-ary number corresponding to 1 bit of the RNTI.

For PDCCH, when W is 16, a is 39827;

for EPDCCH, in particular, when W is 16, for the 0 th set of EPDCCH: 39827; for set 1 of EPDCCH: 39829.

u^(L)Spatial parameters are searched for PDCCH or EPDCCH, which are allocated to the target UE by the network in advance. Here, it is required that u^(L)One element of the set S1. In the case of the PDCCH, when being EPDCCH:

with this alternative embodiment, the RNTI allocated by the network to the UE has (16+ X) bits, (X is an integer greater than 0). However, the X-bit overhead is generated only in the initial allocation, and when the PDCCH is transmitted later, the network only needs to perform the xor operation with the partial 1 bit of the RNTI and the CRC bit. More importantly, the method can avoid the false alarm detection problem caused by the fact that the PDCCH sent to the target UE is detected by other UE of which the RNTI is 16 bits and the RNTI is the same as part 1 of the RNTI of the target UE. In addition, when there are a plurality of UEs having (16+ X) bits of RNTI (X is an integer greater than 0) and their parts 1 are the same, the present invention also has an effect of reducing the PDCCH search space blocking probability of these UEs themselves.

Example 2

Based on example 1, u^(L)Parameters are allocated to the target UE by the network in advance, and u^(L)Is an element of set S2, in the case of PDCCH:

when being EPDCCH:wherein K is a positive integer not less than 2.

The value of the parameter K is related to the number of the carriers supporting cross-carrier scheduling of other carriers by the carrier where the PDCCH or EPDCCH is located, and if the number of the carriers supporting cross-carrier scheduling of other carriers by the carrier where the PDCCH or EPDCCH is located is Y, then K is the best. Of course, K may also take a value greater than Y. In addition, the value of the parameter K also needs to consider the number of available CCEs or ECCEs, for example, for the PDCCH, the following should be satisfied:

for EPDCCH should satisfy:

it should be noted that, as for the inequality, as long as the aggregation level selected by the PDCCH or EPDCCH is satisfied, there is no requirement for the inequality

u^(L)The benefit of being an element of set S2 is: when the carrier where the PDCCH or EPDCCH is located supports cross-carrier scheduling of other carriers, even if 1 bit of part of the RNTI of the target UE of the conventional UE (whose RNTI bit is 16 bits) scheduled by cross-carrier is the same, the search spaces of the conventional UE and the target UE can be distinguished, so that the situation that the PDCCH or EPDCCH sent to the target UE is detected by the conventional UE is avoided (of course, the situation that the PDCCH or EPDCCH of the conventional UE is detected by the target UE is also avoided).

Example 3

Based on embodiment 1, the network also contracts u with the target UE^(L)The set T, wherein the convention set T is the set S1 or S2 or their subset. At this time, the network may agree with the UE to determine according to the predefined correspondence between part 2 bits or subset of part 2 bits in the RNTI bits and the elements in the set T, such as: let X be 2, the number of elements in the set T be 4, the pth element be s (p), where p is 0,1 … 3, then u for the target UE^(L)Can be based onTable determination:

2-bit value of RNTI part	u(L)
		00	S(0)
01	S(1)
		10	S(2)
11	S(3)

Determining u in the manner described above^(L)Besides the advantage of saving the signaling overhead of allocating search space parameters to target UE by the network, the method can also reduce the blocking probability of the PDCCH corresponding to the same part of 1 bit of the RNTI but different part of 2 bits, and improve the utilization efficiency of control channel resources.

Example 4

Based on embodiment 3, u is based on the corresponding relationship between part 2 bits of RNTI bits agreed by the network and the UE and the elements in the set T^(L)Different elements in the set T may also be corresponded in different subframes. For example, the network determines the search space parameters according to the partial 2 bits and the subframe index k, where the number of elements in the set T is P, and the pth element is s (P), where P ═ is0,1 … P-1. In subframe k, for aggregation level L, search space parameters u of target UE^(L)Can be determined as follows:

u^(L)＝u_k；

or u_k＝S(Z_KModP)；

Z_k＝S(CZ_K-1)ModE；

Z_-1＝F；

Wherein, F is a 10-system number corresponding to 2 bits of the part of the RNTI, E is 2^ X, or E is 2^ X +1, and C is a constant with E.

Determining u in the manner described above^(L)On the basis of embodiment 4, the blocking probability of the PDCCH corresponding to part 1 of the RNTI with the same bits but part 2 of the RNTI with different bits can be further reduced, and the utilization efficiency of the control channel resources can be improved.

Example 5

Based on embodiment 3, u is based on the corresponding relationship between part 2 bits of RNTI bits agreed by the network and the UE and the elements in the set T^(L)Different elements in the set T may also be corresponded in different subframes. For example, the network determines the search space parameters according to the partial 2 bits and the subframe index k, where the number of elements in the set T is P, and the pth element is s (P), where P is 0,1 … P-1. In subframe k, for aggregation level L, search space parameters u of target UE^(L)Can be determined as follows:

u^(L)＝u_k；

u_k＝S(Z_KModP)；

Z_k＝S(CZ_K-1)ModE；

Z_-1＝F；

wherein, F is a 10-system number corresponding to 2 bits of the part of the RNTI, E is 2^ X, or E is 2^ X +1, and C is a constant with E.

Example 5 has similar effects to example 4 and can be considered as another alternative to example 4.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A control information processing method, characterized by comprising:

allocating a Radio Network Temporary Identifier (RNTI) for target User Equipment (UE), wherein the RNTI comprises: part 1 and part 2, wherein the number of bits of part 1 is the same as the number of Cyclic Redundancy Check (CRC) bits of a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), the bits are set as W bits, part 2 is X bits, W, X are positive integers which are larger than 0, and part 1 is used for scrambling the CRC bits of the PDCCH or the EPDCCH;

transmitting the PDCCH or the EPDCCH to the target UE, wherein the PDCCH and the EPDCCH have Q^(L)Each possible position is corresponding to a Control Channel Element (CCE) index or an Enhanced Control Channel Element (ECCE) index according to a position index m, the part 1 and a search space parameter u^(L)Is determined, where L is the aggregation level, Q^(L)Is the number of PDCCH or EPDCCH candidate positions in the search space corresponding to L, Q^(L)Is an integer, m is 0,1 … Q^(L)-1；

Wherein the index m, the part 1 and the search space parameter u are determined according to the position^(L)Determining the CCE index or ECCE index corresponding to each location comprises:

when the index is PDCCH, the CCE index corresponding to the mth position is:

wherein i is 0,1,2 … L-1; or,

when the current ECCE index is EPDCCH, the ECCE index corresponding to the mth position is:

wherein i is 0,1,2 … L-1;

wherein k is a subframe index where a PDCCH or EPDCCH transmitted to a target UE is located, and N is_CCE,kFor the total number of CCEs in subframe k of the carrier where the PDCCH is transmitted, M^(L)Is a set of constants;

N_ECCE,kthe total number of ECCEs of the carrier where the EPDCCH is sent in the 0 th or 1 st set of the subframe k;

Y_kdetermining from said fraction 1, Y_k＝(A·Y_k-1) modD, wherein D ^ 2^ W +1, Y_-1B, where B is a 10-ary number corresponding to 1 bit of the portion of the RNTI, and a is a positive integer prime with D;

determining u by at least one of^(L)：

Allocating the u to the target UE^(L)；

Agreeing on the u with the target UE^(L)；

Allocating the u to the target UE^(L)The method comprises the following steps:

said u is^(L)Is an element of set S1; when being PDCCH:

when being EPDCCH: or,

said u is^(L)Is an element of set S2, in the case of PDCCH: when being EPDCCH: wherein K is a positive integer not less than 2;

agreeing on the u with the target UE^(L)The method comprises the following steps:

appointing a set T with the target UE, wherein the set T is at least one of the following: the set S1, the set S2, a subset of the set S1, a subset of the set S2;

agreeing with the target UE to determine the fraction 2 and elements of the set Tu^(L)The method comprises the following steps:

agreeing with the target UE about correspondence between the part 2 and elements in the set T, or the u^(L)Different sub-frames correspond to different elements in the set T;

determining the u according to the part 2 and a subframe index k^(L)Let the number of elements in the set T be P, the pth element be s (P), where P is 0,1 … P-1; in subframe k, for L, the u of the target UE^(L)Is determined as follows:

u^(L)＝u_k；

or u_k＝S(Z_KModP)；

Z_k＝S(CZ_K-1)ModE；

Z_-1F, where F is the 10-ary number corresponding to portion 2 of the X bits, E ^ 2^ X, or E ^ 2^ X +1, C is a constant with E.

2. The method of claim 1,

and scrambling a physical downlink traffic channel or a physical uplink traffic channel scheduled by the PDCCH or the EPDCCH according to the RNTI or the part 1 of the RNTI or the part 2 of the RNTI.

3. The method of claim 1,

l is one or more values in the set {1,2,4,8,16,32 };

when L is 1 or 2, 0 is not more than Q^(L)Less than or equal to 6; when L is 4,8,16 or 32, 0 is not more than Q^(L)2 or less, wherein 1 or more Q^(L)In (1), at least one Q^(L)Is not equal to 0;

k is a subframe index k of the PDCCH or EPDCCH transmitted to the target UE, which is 0,1,2 …, 9.

4. The method of claim 3,

when the carrier is PDCCH, when L is 1 or 2, M^(L)6; when L is 4 or 8, M^(L)＝2；

The total number of CCEs of subframe k is N_CCE,kThis N_CCE,kThe CCE indexes are 0,1 …, N_CCE,k-1，N_CCE,kSatisfies the following conditions:for PDCCH, when W is 16, a is 39827;

when the EPDCCH is adopted, M is more than or equal to 0^(L)≤8；

Total number of ECCEs of subframe k is N_CCE,kThis N_CCE,kECCE indexes of 0,1 …, N_ECCE,k-1，N_ECCE,kSatisfies the following conditions:

for EPDCCH, when W is 16, for 0 th set of EPDCCH: 39827, for EPDCCH set 1: 39829.

5. A control information processing method, characterized by comprising:

determining a Radio Network Temporary Identifier (RNTI) allocated by a network, wherein the RNTI comprises a part 1 and a part 2, the number of bits of the part 1 is the same as the number of Cyclic Redundancy Check (CRC) bits of a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), the part 1 is set as a W bit, the part 2 is an X bit, W, X are positive integers which are larger than 0, and the part 1 is used for descrambling the CRC bits of the Physical Downlink Control Channel (PDCCH) or the Enhanced Physical Downlink Control Channel (EPDCCH);

receiving the PDCCH or the EPDCCH transmitted by the network, wherein the PDCCH and the EPDCCH have Q^(L)Each possible position is corresponding to a Control Channel Element (CCE) index or an Enhanced Control Channel Element (ECCE) index according to a position index m, the part 1 and a search space parameter u^(L)Is determined, where L is the aggregation level, Q^(L)Is the number of PDCCH or EPDCCH candidate positions in the search space corresponding to L, Q^(L)Is an integer, m is 0,1 … Q^(L)-1，u^(L)A search space parameter for PDCCH or EPDCCH;

wherein the index m, the part 1 and the search space parameter u are determined according to the position^(L)Determining the CCE index or ECCE index corresponding to each location comprises:

when the index is PDCCH, the CCE index corresponding to the mth position is:wherein i is 0,1,2 … L-1; or,

when the current ECCE index is EPDCCH, the ECCE index corresponding to the mth position is:

wherein i is 0,1,2 … L-1;

wherein k is a subframe index where a PDCCH or EPDCCH transmitted to a target UE is located, and N is_CCE,kFor the total number of CCEs in subframe k of the carrier where the PDCCH is transmitted, M^(L)Is a set of constants;

N_ECCE,kthe total number of ECCEs of the carrier where the EPDCCH is sent in the 0 th or 1 st set of the subframe k;

Y_kdetermining from said fraction 1, Y_k＝(A·Y_k-1) modD, wherein D ^ 2^ W +1, Y_-1B, where B is a 10-ary number corresponding to part 1 bit of the RNTI, and a is a positive integer prime with D;

determining u by at least one of^(L)：

Determining the u of the network allocation^(L)；

Agreeing on u with the network^(L)；

Determining the u of the network allocation^(L)The method comprises the following steps:

said u is^(L)Is an element of set S1; in the case of the PDCCH, when being EPDCCH: or,

said u is^(L)Is an element of set S2, in the case of PDCCH: when being EPDCCH: wherein K is a positive integer not less than 2;

agreeing on u with the network^(L)The method comprises the following steps:

appointing a set T with the network, wherein the set T is at least one of the following: the set S1, the set S2, a subset of the set S1, a subset of the set S2;

determining the u according to the part 2 and the elements in the set T by agreeing with the network^(L)The method comprises the following steps:

agreeing on the correspondence of the part 2 and the elements in the set T, or the u^(L)Different sub-frames correspond to different elements in the set T;

determining the u according to the part 2 and a subframe index k^(L)Let the elements in the set TThe number P, the pth element is s (P), where P is 0,1 … P-1; in subframe k, for L, the u of the target UE^(L)Is determined as follows:

u^(L)＝u_k；

or u_k＝S(Z_KModP)；

Z_k＝S(CZ_K-1)ModE；

Z_-1F, where F is the 10-ary number corresponding to portion 2 of the X bits, E ^ 2^ X, or E ^ 2^ X +1, C is a constant with E.

6. The method of claim 5,

and descrambling a physical downlink service channel or a physical uplink service channel scheduled by the PDCCH or the EPDCCH according to the RNTI or the part 1 of the RNTI or the part 2 of the RNTI.

7. The method of claim 5,

l is one or more values in the set {1,2,4,8,16,32 };

when L is 1 or 2, 0 is not more than Q^(L)Less than or equal to 6; when L is 4,8,16 or 32, 0 is not more than Q^(L)2 or less, wherein 1 or more Q^(L)In (1), at least one Q^(L)Is not equal to 0;

k is a subframe index k of the PDCCH or EPDCCH transmitted to the target UE, which is 0,1,2 …, 9.

8. The method of claim 5,

when the carrier is PDCCH, when L is 1 or 2, M^(L)6; when L is 4 or 8, M^(L)＝2；

The total number of CCEs of subframe k is N_CCE,kThis N_CCE,kThe CCE indexes are 0,1 …, N_CCE,k-1，N_CCE,kSatisfies the following conditions:

for PDCCH, when W is 16, a is 39827;

when the EPDCCH is adopted, M is more than or equal to 0^(L)≤8；

Total number of ECCEs of subframe k is N_CCE,kThis N_CCE,kECCE indexes of 0,1 …, N_ECCE,k-1，N_ECCE,kSatisfies the following conditions:

for EPDCCH, when W is 16, for 0 th set of EPDCCH: 39827, for EPDCCH set 1: 39829.

9. A control information processing apparatus characterized by comprising:

an allocation module, configured to allocate a radio network temporary identity RNTI to a target user equipment UE, where the RNTI includes: part 1 and part 2, wherein the number of bits of part 1 is the same as the number of Cyclic Redundancy Check (CRC) bits of a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), the bits are set as W bits, part 2 is X bits, W, X are positive integers which are larger than 0, and part 1 is used for scrambling the CRC bits of the PDCCH or the Enhanced Physical Downlink Control Channel (EPDCCH);

a sending module, configured to send the PDCCH or the EPDCCH to the target UE, where the PDCCH and the EPDCCH have a Q^(L)Each possible position is corresponding to a Control Channel Element (CCE) index or an Enhanced Control Channel Element (ECCE) index according to a position index m, the part 1 and a search space parameter u^(L) Is determined, where L is the aggregation level, Q^(L)Is the number of PDCCH or EPDCCH candidate positions in the search space corresponding to L, Q^(L)Is an integer, m is 0,1 … Q^(L)-1；

Wherein the sending module is rooted inAccording to the position index m, the part 1 and the search space parameter u^(L)Determining a CCE index or an ECCE index corresponding to each position:

when the index is PDCCH, the CCE index corresponding to the mth position is:

wherein i is 0,1,2 … L-1; or,

when the current ECCE index is EPDCCH, the ECCE index corresponding to the mth position is:

wherein i is 0,1,2 … L-1;

wherein k is a subframe index where a PDCCH or EPDCCH transmitted to a target UE is located, and N is_CCE,kFor the total number of CCEs in subframe k of the carrier where the PDCCH is transmitted, M^(L)Is a set of constants;

N_ECCE,kthe total number of ECCEs of the carrier where the EPDCCH is sent in the 0 th or 1 st set of the subframe k;

Y_kdetermining from said fraction 1, Y_k＝(A·Y_k-1) modD, wherein D ^ 2^ W +1, Y_-1B, where B is a 10-ary number corresponding to part 1 bit of the RNTI, and a is a positive integer prime with D;

determining u by at least one of^(L)：

Allocating the u to the target UE^(L)；

Agreeing on the u with the target UE^(L)；

Allocating the u to the target UE^(L)The method comprises the following steps:

said u is^(L)Is an element of set S1; in the case of the PDCCH, when being EPDCCH: or,

said u is^(L)Is an element of set S2, in the case of PDCCH: when being EPDCCH: wherein K is a positive integer not less than 2;

agreeing on the u with the target UE^(L)The method comprises the following steps:

appointing a set T with the target UE, wherein the set T is at least one of the following: the set S1, the set S2, a subset of the set S1, a subset of the set S2;

agreeing with the target UE to determine the u from the part 2 and elements in the set T^(L)The method comprises the following steps:

agreeing with the target UE about correspondence between the part 2 and elements in the set T, or the u^(L)Different sub-frames correspond to different elements in the set T;

determining the u according to the part 2 and a subframe index k^(L)Let the number of elements in the set T be P, the pth element be s (P), where P is 0,1 … P-1; in subframe k, for L, the u of the target UE^(L)Is determined as follows:

u^(L)＝u_k；

or u_k＝S(Z_KModP)；

Z_k＝S(CZ_K-1)ModE；

Z_-1F, where F is the 10-ary number corresponding to portion 2 of the X bits, E ^ 2^ X, or E ^ 2^ X +1, C is a constant with E.

10. A control information processing apparatus characterized by comprising:

the Radio Network Temporary Identifier (RNTI) comprises a part 1 and a part 2, wherein the number of bits of the part 1 is the same as the number of Cyclic Redundancy Check (CRC) bits of a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), the part 2 is a bit of W, the part 2 is a bit of X, W, X is a positive integer greater than 0, and the part 1 is used for descrambling the CRC bits of the PDCCH or the Enhanced Physical Downlink Control Channel (EPDCCH);

a receiving module, configured to receive the PDCCH or the EPDCCH sent by the network, where the PDCCH and the EPDCCH have a Q^(L)Each possible position is corresponding to a Control Channel Element (CCE) index or an Enhanced Control Channel Element (ECCE) index according to a position index m, the part 1 and a search space parameter u^(L)Is determined, where L is the aggregation level, Q^(L)Is the number of PDCCH or EPDCCH candidate positions in the search space corresponding to L, Q^(L)Is an integer, m is 0,1 … Q^(L)-1，u^(L)A search space parameter for PDCCH or EPDCCH;

wherein the receiving module indexes m, the part 1, and the search space parameter u according to the position by^(L)Determining a CCE index or an ECCE index corresponding to each position:

when the index is PDCCH, the CCE index corresponding to the mth position is:

wherein i is 0,1,2 … L-1; or,

when the current ECCE index is EPDCCH, the ECCE index corresponding to the mth position is:

wherein i is 0,1,2 … L-1;

wherein k is a subframe index where a PDCCH or EPDCCH transmitted to a target UE is located, and N is_CCE,kFor the total number of CCEs in subframe k of the carrier where the PDCCH is transmitted, M^(L)Is a set of constants;

N_ECCE,kthe total number of ECCEs of the carrier where the EPDCCH is sent in the 0 th or 1 st set of the subframe k;

Y_kdetermining from said fraction 1, Y_k＝(A·Y_k-1) modD, wherein D ^ 2^ W +1, Y_-1B, where B is a 10-ary number corresponding to part 1 bit of the RNTI, and a is a positive integer prime with D;

determining u by at least one of^(L)：

Determining the u of the network allocation^(L)；

Agreeing on u with the network^(L)；

Determining the u of the network allocation by^(L)：

Said u is^(L)Is an element of set S1; in the case of the PDCCH, when being EPDCCH: or,

said u is^(L)Is an element of set S2, in the case of PDCCH: when being EPDCCH: wherein K is a positive integer not less than 2;

agreeing on said u with said network by^(L)：

Appointing a set T with the network, wherein the set T is at least one of the following: the set S1, the set S2, a subset of the set S1, a subset of the set S2;

determining the u according to the part 2 and the elements in the set T by agreeing with the network^(L)The method comprises the following steps:

agreeing on the correspondence of the part 2 and the elements in the set T, or the u^(L)Different sub-frames correspond to different elements in the set T;

determining the u according to the part 2 and a subframe index k^(L)Let the number of elements in the set T be P, the pth element be s (P), where P is 0,1 … P-1; in subframe k, for L, the u of the target UE^(L)Is determined as follows:

u^(L)＝u_k；

or u_k＝S(Z_KModP)；

Z_k＝S(CZ_K-1)ModE；

Z_-1F, where F is the 10-ary number corresponding to portion 2 of the X bits, E ^ 2^ X, or E ^ 2^ X +1, C is a constant with E.