CN101998681A - Method for processing signaling, and base station and user equipment - Google Patents

Abstract

The embodiment of the present invention discloses a signaling processing method, a base station and user equipment. The method includes: generating at least one physical downlink control channel PDCCH respectively corresponding to at least one carrier, and the state of the carrier indication bit in the PDCCH corresponding to the non-main carrier in the at least one carrier is related to the physical control channel on the non-main carrier There is a corresponding relationship between the values of the format indicator channel PCFICH; the at least one PDCCH is sent to the user equipment for the user equipment to acquire the non-primary carrier according to the state of the carrier indicator bit in the PDCCH corresponding to the non-main carrier The value of PCFICH on the main carrier. The embodiment of the present invention demodulates the PDSCH from the correct starting position information of the PDSCH, effectively reducing the false detection rate of the PDSCH and avoiding subsequent unnecessary feedback and retransmission.

Description

Signaling processing method, base station and user equipment

technical field

The present invention relates to the technical field of communications, and in particular to a signaling processing method, base station and user equipment.

Background technique

In an existing communication system, the location of a Physical Downlink Control Channel (PDCCH) of a user equipment (User Equipment, hereinafter referred to as UE) can be determined by a physical control format indicator channel (Physical Control Format Indicator Channel) , hereinafter referred to as: PCFICH) indicates that since the position of the PDCCH can be the first 1, 2 or 3 symbols of the current subframe, or when the bandwidth is small, the position of the PDCCH can also be the first 2, 3 or 4 symbols of the current subframe symbol, so the value of PCFICH can indicate that PDCCH occupies the first 1, 2 or 3 symbols in the current subframe, or when the bandwidth is small, the information carried by the value of PCFICH can indicate that PDCCH occupies the first symbol in the current subframe. 2, 3 or 4 symbols. If the UE cannot successfully detect the value of the PCFICH, the UE cannot successfully detect the PDCCH in the current subframe. If the UE successfully detects the PDCCH, it means that the UE also successfully detects the value of the PCFICH, so the detection of the PDCCH by the UE is an implicit verification of the value of the PCFICH of the corresponding carrier.

In the Long Term Evolved-Advanced (hereinafter referred to as: LTE-A) system, it is necessary to support a wider bandwidth than the LTE system, so multiple carriers can be aggregated, and the resources on the aggregated multiple carriers can be scheduled simultaneously Used by one UE. For a UE allocated with multiple carriers, the PDCCHs need to be coded respectively, so as to generate multiple independent PDCCHs. These PDCCHs may be placed on the carrier corresponding to the Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH for short), or may be placed on one or several carriers. Fig. 1 is a structural schematic diagram of placing the PDCCH corresponding to the UE on the corresponding carrier in the prior art. As shown in Fig. 1, the PDCCH and its corresponding PDSCH are placed on the same carrier. Therefore, on any carrier, if the Correctly verifying the PDCCH means correctly verifying the value of the PCFICH on the carrier, so that the data start position of the PDSCH on the carrier can be determined. Therefore, in this case, the PDCCH can still be used as an implicit check of the value of the PCFICH of the corresponding carrier. FIG. 2 is a structural diagram of placing the PDCCH corresponding to the UE on one carrier in the prior art. As shown in FIG. 2 , since the PDCCH is carried across carriers, that is, the PDCCH and the corresponding PDSCH are carried on different carriers.

When all the PDCCHs of a certain UE are placed on one or several carriers, the value of PCFICH on the carrier where the PDCCH of the UE is not placed is separated from the corresponding PDCCH. Therefore, the carrier where the PDCCH of the UE is not placed The value of the PCFICH cannot pass the corresponding PDCCH check. Once the value of PCFICH is checked incorrectly, the number of characters occupied by the PDCCH indicated by the value of PCFICH will be wrong, so that the UE demodulates the PDSCH from the wrong position, resulting in wrong detection of PDSCH and some subsequent errors. necessary retransmissions.

Contents of the invention

Embodiments of the present invention provide a signaling processing method, a base station, and user equipment, so as to reduce the impact of PCFICH value check errors on PDSCH demodulation.

An embodiment of the present invention provides a signaling processing method, including:

Generate at least one physical downlink control channel PDCCH respectively corresponding to at least one carrier, the state of the carrier indicator bit in the PDCCH corresponding to the non-main carrier in the at least one carrier and the physical control format on the non-main carrier indicating the channel There is a corresponding relationship between the values of PCFICH;

Sending the at least one PDCCH to the user equipment, for the user equipment to obtain the value of the PCFICH on the non-main carrier according to the state of the carrier indicator bit in the PDCCH corresponding to the non-primary carrier.

An embodiment of the present invention provides another signaling processing method, including:

Generate at least one physical downlink control channel PDCCH respectively corresponding to at least one carrier, the state of the carrier indicator bit in each PDCCH in the at least one PDCCH is the physical control format indicator channel PCFICH on the carrier corresponding to each PDCCH There is a corresponding relationship between the values of ;

Sending the at least one PDCCH to the user equipment, for the user equipment to obtain the value of the PCFICH on the carrier corresponding to each PDCCH according to the state of the carrier indicator bit in each PDCCH in the at least one PDCCH .

An embodiment of the present invention provides another signaling processing method, including:

receiving at least one physical downlink control channel PDCCH respectively corresponding to at least one carrier sent by the base station, the state of the carrier indicator bit in the PDCCH corresponding to the non-main carrier in the at least one carrier and the physical control channel on the non-main carrier There is a corresponding relationship between the values of the format indication channel PCFICH;

The value of the PCFICH on the non-main carrier is acquired according to the state of the carrier indicator bit in the PDCCH corresponding to the non-main carrier.

An embodiment of the present invention provides yet another signaling processing method, including:

Receiving at least one physical downlink control channel PDCCH respectively corresponding to at least one carrier sent by the base station, the state of the carrier indicator bit in each PDCCH in the at least one PDCCH is the same as the physical control format on the carrier corresponding to each PDCCH There is a corresponding relationship between the values of the indication channel PCFICH;

Acquire the value of the PCFICH on the carrier corresponding to each PDCCH according to the state of the carrier indicator bit in each PDCCH of the at least one PDCCH.

An embodiment of the present invention provides a base station, including:

The first generating module is configured to generate at least one physical downlink control channel PDCCH respectively corresponding to at least one carrier, and the state of the carrier indication bit in the PDCCH corresponding to the non-main carrier in the at least one carrier is the same as that of the non-main carrier There is a corresponding relationship between the values of the physical control format indicator channel PCFICH;

The first sending module is configured to send the at least one PDCCH to the user equipment, for the user equipment to acquire the PCFICH on the non-main carrier according to the state of the carrier indicator bit in the PDCCH corresponding to the non-main carrier value.

An embodiment of the present invention provides another base station, including:

The second generating module is configured to generate at least one physical downlink control channel PDCCH respectively corresponding to at least one carrier, and the state of the carrier indicator bit in each PDCCH in the at least one PDCCH is on the carrier corresponding to each PDCCH There is a corresponding relationship between the values of the physical control format indication channel PCFICH;

The second sending module is configured to send the at least one PDCCH to the user equipment, for the user equipment to obtain the carrier indicator bit corresponding to each PDCCH according to the state of the carrier indicator bit in each PDCCH in the at least one PDCCH Value of PCFICH on the carrier.

An embodiment of the present invention provides a user equipment, including:

The first receiving module is configured to receive at least one physical downlink control channel PDCCH respectively corresponding to at least one carrier sent by the base station, and the state of the carrier indicator bit in the PDCCH corresponding to the non-main carrier in the at least one carrier is the same as the state of the There is a corresponding relationship between the values of the physical control format indicator channel PCFICH on the non-main carrier;

The first acquiring module is configured to acquire the value of the PCFICH on the non-main carrier according to the state of the carrier indicator bit in the PDCCH corresponding to the non-main carrier.

An embodiment of the present invention provides another user equipment, including:

The second receiving module is configured to receive at least one physical downlink control channel PDCCH respectively corresponding to at least one carrier sent by the base station, and the state of the carrier indicator bit in each PDCCH in the at least one PDCCH corresponds to each PDCCH There is a corresponding relationship between the values of the physical control format indicator channel PCFICH on the carrier;

The second obtaining module is configured to obtain the value of the PCFICH on the carrier corresponding to each PDCCH according to the state of the carrier indicator bit in each PDCCH of the at least one PDCCH.

In the above embodiments of the present invention, the carrier indicator bit of the PDCCH is used to indicate the value of the PCFICH of the carrier where the PDSCH corresponding to the PDCCH is located. PCIFICH on the carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's value verification of the PCFICH, and then demodulating the PDSCH from the correct starting position information of the PDSCH, effectively reducing the PDSCH The false detection rate avoids unnecessary subsequent feedback retransmissions.

An embodiment of the present invention provides a signaling processing method, including:

Obtaining the physical downlink shared channel PDSCH from an area in the subframe except the control area, where the control area is the largest area capable of carrying the physical downlink control channel PDCCH in a subframe;

Within the control region, the PDSCH is acquired using the reverse time order of the arrangement of symbols in the subframe.

An embodiment of the present invention provides another signaling processing method, including:

Mapping the physical downlink shared channel PDSCH to the area in the subframe except the control area, and the control area is the largest area capable of carrying the physical downlink control channel PDCCH in a subframe;

Within the control region, the PDSCH is mapped using the reverse time order of the symbol arrangement in the subframe.

An embodiment of the present invention provides a user equipment, including:

The third obtaining module is used to obtain the physical downlink shared channel PDSCH from the subframe except the control region, and the control region is the largest region capable of carrying the physical downlink control channel PDCCH in one subframe;

The fourth obtaining module is configured to obtain the PDSCH in the control region using a time sequence reverse to that of the symbol arrangement in the subframe.

An embodiment of the present invention provides a base station, including:

The first mapping module is configured to map the physical downlink shared channel PDSCH to the area in the subframe except the control area, and the control area is the largest area capable of carrying the physical downlink control channel PDCCH in a subframe;

The second mapping module is configured to map the PDSCH in the control region using a time sequence opposite to that of symbols in the subframe.

In the above embodiments of the present invention, the subframe is divided into the control area and areas other than the control area, and by adopting a new mapping method, the PDSCH is mapped or acquired from the control area and areas other than the control area according to a preset mapping sequence, Therefore, it is possible to reduce the influence of subsequent UEs on the demodulation of the PDSCH due to misdetection of the value of the PCFICH, and improve system performance.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of placing PDCCHs corresponding to UEs on corresponding carriers in the prior art;

FIG. 2 is a schematic structural diagram of placing a PDCCH corresponding to a UE on a carrier in the prior art;

FIG. 3 is a flowchart of a signaling processing method provided by an embodiment of the present invention;

FIG. 4 is a flowchart of another signaling processing method provided by an embodiment of the present invention;

FIG. 5 is a flowchart of another signaling processing method provided by an embodiment of the present invention;

FIG. 6 is a flowchart of another signaling processing method provided by an embodiment of the present invention;

FIG. 7 is a flowchart of another signaling processing method provided by an embodiment of the present invention;

FIG. 8 is a flowchart of yet another signaling processing method provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a base station provided by an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a user equipment provided by an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of another user equipment provided by an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of another base station provided by an embodiment of the present invention;

FIG. 13 is a schematic structural diagram of another user equipment provided by an embodiment of the present invention;

FIG. 14 is a schematic structural diagram of another user equipment provided by an embodiment of the present invention;

FIG. 15 is a schematic structural diagram of another user equipment provided by an embodiment of the present invention;

FIG. 16 is a schematic structural diagram of another base station provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

FIG. 3 is a flowchart of a signaling processing method provided by an embodiment of the present invention. As shown in FIG. 3, the method of this embodiment may include:

Step 301. Generate at least one physical downlink control channel PDCCH respectively corresponding to at least one carrier.

There is a corresponding relationship between the state of the carrier indicator bit in the PDCCH corresponding to the non-main carrier in the at least one carrier and the value of the physical control format indication channel PCFICH on the non-main carrier.

In this embodiment, the at least one carrier may include a primary carrier and a non-primary carrier. The so-called primary carrier is a carrier that preferentially bears and schedules the PDCCH. There may be one primary carrier or multiple primary carriers. The base station and the UE can agree in advance or notify which one or several carriers are the main carrier through signaling, or the base station informs the UE which or several carriers are the main carrier through semi-static signaling, that is, the main carrier is relatively fixed for a long period of time Or it changes slowly. For example, the base station and the UE can agree or notify the carrier corresponding to the lowest frequency label as the primary carrier through signaling. For example, the UE may regard the carrier corresponding to the lowest frequency number on which the PDCCH is detected as the main carrier. Regardless of the relative fixed main carrier or the dynamic change of the main carrier, since the main carrier always carries the scheduling PDCCH first, the value of the PCFICH on the main carrier can be implicitly verified through the PDCCH carried on it, so , the value of the PCFICH on the main carrier may be indicated without the carrier indication bit, so that some carrier indication bits can be saved. The carrier indication bit on the PDCCH corresponding to the non-main carrier needs to indicate the value of the PCFICH on the non-main carrier.

When the number of carriers carrying multiple independent PDCCHs is less than the number of carriers carrying PDSCHs that the UE needs to monitor, there will be a situation where a certain PDCCH is not on the same carrier as the PDSCH corresponding to the PDCCH, that is, the PDCCH Separated from the PDSCH, at this time, the PDCCH is carried across carriers. At this time, several carrier indication bits can be set in the PDCCH to indicate the corresponding relationship between the PDCCH and the carrier on which the correspondingly scheduled PDSCH is located. For example, if the carrier indicator bit is 2 bits, it can indicate 2 ² =4 states; if the carrier indicator bit is 3 bits, it can indicate 2 ³ =8 states; if the carrier indicator bit is 4 bits, it can indicate 2 ⁴ = 16 states. Those skilled in the art can understand that the carrier indicator bit does not exclude other bit numbers, so as to indicate less or more states.

In the case of cross-carrier carrying of PDCCH, since the PDCCH is separated from the carrier where the PDSCH that carries its corresponding scheduling is separated, the value of the PCFICH on this carrier cannot be verified through the PDCCH, so the value of the PCFICH on this carrier occurs It cannot be checked out during error detection. In order to solve this problem, in this embodiment, the above-mentioned carrier indication bit can not only be used to indicate the main carrier and the non-main carrier, but also can be used to indicate the value of the PCFICH on the non-main carrier. In this embodiment, the value of the PCFICH can be 1, 2 or 3, that is, in one case, the value of the PCFICH can respectively represent that the position of the PDCCH is the first 1, 2 or 3 symbols of the current subframe, In another case, that is, when the bandwidth is small, the value of the PCFICH may respectively represent that the position of the PDCCH is the first 2, 3 or 4 symbols of the current subframe.

If the carrier indication bit can indicate the value of PCFICH on each non-main carrier that the UE needs to monitor one by one, that is, the values of the three PCFICH on each non-main carrier can use at least one carrier indication bit status Indicated, the value of PCFICH on each non-main carrier can be accurately indicated.

If the state of the carrier indicator bit cannot uniformly indicate the value of the PCFICH on each non-main carrier that the UE needs to monitor, that is, the number of bits of the carrier indicator bit is small, and the state of the carrier indicator bit is not enough to indicate one by one Each value of PCFICH on each non-main carrier, that is, when there is a one-to-many correspondence between the state of the carrier indicator bit and the value of PCFICH, the value of PCFICH on each non-main carrier cannot At this time, two methods can be adopted. First, the carrier indicator bit can be used to indicate some subsets of the value set of PCFICH, that is, the state of a carrier indicator bit can be used to indicate two possible values of PCFICH. Or three values, for example, the status of a carrier indicator bit can indicate that the value of the corresponding PCFICH is 2 or 3, and what is the value of the specific PCFICH, the UE can detect from the indicated value, for example, from Whether the value of the specific PCFICH is 2 or 3 is detected in the above value 2 or 3; secondly, the number of bits of the carrier indicator bit can be increased, for example, when the number of bits of the carrier indicator bit is 3, it can represent 8 states , and when the number of carrier indicator bits is 4, it can represent 16 states. Therefore, the more the number of carrier indicator bits, the more PCFICH values that can be accurately indicated.

Step 302: Send the at least one PDCCH to the user equipment, for the user equipment to obtain the value of the PCFICH on the non-principal carrier according to the state of the carrier indicator bit in the PDCCH corresponding to the non-principal carrier.

Specifically, the base station can send at least one PDCCH to the UE, and after receiving the PDCCH, the UE can determine the value of the PCFICH on the non-main carrier according to the state of the carrier indicator bit. For the situation that there is a many-to-one or one-to-one correspondence between the state of the carrier indicator bit and the value of the PCFICH on each non-main carrier, the UE can know the value of the PCFICH exactly, with the carrier indicator bit as the 3 bits For example, the base station and the UE can agree in advance or notify the carrier indicator bit that there are 3 bits, and the state of the carrier indicator bit can be used to indicate that the PDCCH corresponds to the third non-main carrier, and at the same time It is used to indicate that the value of the PCFICH on the third non-main carrier is 2, that is, there is a one-to-one correspondence between the state 010 of the carrier indication bit and the value of 2 on the PCFICH on the third non-main carrier. Correspondingly, when the UE receives the PDCCH, it can know that the PDCCH corresponds to scheduling the PDSCH on the third non-main carrier according to the status 010 of the carrier indicator bit, and the PDCCH occupies 2 symbols, then the UE can know that the PDSCH on the third non-main carrier The data start position of the PDSCH on the 3 non-main carriers is the third symbol, so that the UE can extract the PDSCH from the third symbol.

Alternatively, the states of the carrier indication bits 001 and 011 can both be used to indicate that the PDCCH corresponds to the third non-main carrier, and at the same time be used to indicate that the value of the PCFICH on the third non-main carrier is 2, that is, the carrier indication There is a many-to-one correspondence between the bit states 001 and 011 and the value 2 of the PCFICH on the third non-primary carrier, then when the UE receives the PDCCH, it can know the PDCCH according to the state of its carrier indicator bit. The PDCCH corresponds to scheduling the PDSCH on the third non-main carrier, and the PDCCH occupies 2 symbols, then the UE can know that the data start position of the PDSCH on the third non-main carrier is the third symbol, so that The UE can start extracting the PDSCH from the third symbol.

In the case of a one-to-many correspondence between the carrier indicator bit and the value of the PCFICH, the UE cannot exactly know the value of the PCFICH on the corresponding non-main carrier through the carrier indicator bit. If the state of a certain carrier indicator bit or the state of some carrier indicator bits agreed by the base station and the UE in advance or notified by signaling indicates a subset of all values of the PCFICH of a non-primary carrier, the UE receives For the PDCCH, if the status of a certain carrier indicator bit or the status of some carrier indicator bits indicates a subset of all PCFICH values, the UE can detect in this subset to determine the value of the PCFICH Specifically which value in the subset, for the situation that there is a many-to-one or one-to-one correspondence between the state of the other carrier indicator bits and the value of the PCFICH, the UE can know the value of the PCFICH exactly.

Still taking the example that the carrier indicator bit is 3 bits, the base station and the UE can agree in advance or notify the carrier indicator bit that there are 3 bits, and the state of the carrier indicator bit 011 can be used to indicate that the PDCCH corresponds to the third It is not the main carrier, and at the same time it is used to indicate that the value of the PCFICH on the third non-main carrier is 2 or 3, then when the UE receives the PDCCH, it can know the corresponding scheduling of the PDCCH according to the status 011 of the carrier indicator bit. It is the PDSCH on the third non-main carrier, and the PDCCH occupies 2 or 3 symbols, then the UE can know whether the value of the PCFICH is 2 or 3 by detecting the value of the PCFICH in the value of 2 or 3, Therefore, it is determined that the data start position of the PDSCH on the third non-main carrier is the third symbol or the fourth symbol, so that the UE can start to extract the PDSCH from the third symbol or the fourth symbol. For the situation of increasing the number of bits of the carrier indicator bit, there are more states of the carrier indicator bit that can be used, and the corresponding relationship between the state of the carrier indicator bit and the value of the PCFICH can be many-to-one or It can be one-to-one or one-to-many, and the specific corresponding relationship can be determined according to the number of carriers to be indicated.

In a preferred case, when the state of the carrier indicator bit is sufficient, the one-to-one correspondence between the state of the carrier indicator bit and the value of the PCFICH can be preferentially used, and when it is not enough, the carrier indicator bit can be used There is no one-to-one correspondence between the state and the value of the PCFICH, or a way of increasing the number of carrier indicator bits.

In this embodiment, the state of the carrier indication bit of the PDCCH is used to indicate the value of the PCFICH on the non-main carrier where the scheduled PDSCH corresponding to the PDCCH is located. Even if the PDCCH is carried on other carriers, the UE can also use the carrier indication on the PDCCH The bit knows the PCIFICH on the non-main carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's value verification of the PCFICH, and then demodulating the PDSCH from the correct starting position information of the PDSCH, The false detection rate of the PDSCH is effectively reduced, and subsequent unnecessary feedback retransmissions are avoided.

In another embodiment of the signaling processing method of the present invention, when 2 ^N is greater than or equal to 3 times the number of carriers of the non-main carrier, where N is the number of bits indicated by the carrier, the corresponding relationship may include : There is a one-to-one correspondence between the state of the carrier indicator bit of the PDCCH corresponding to each of the non-main carriers and the value of the PCFICH on each of the non-main carriers, or multiple pairs One correspondence.

For example, there are 3 possible values for the value of PCFICH. In order to accurately indicate each value of the value of PCFICH on each non-main carrier, each non-main carrier needs to allocate at least 3 carrier indication bits status. For example, when the number of carrier indicator bits of the PDCCH is 2, it can represent the states 00, 01, 10, and 11 of the four carrier indicator bits. The carrier indicator bit state 00 can be used to indicate the main carrier, and the carrier indicator bit can be used to indicate Bit states of 01, 10 and 11 indicate non-anchor carriers. Therefore, in the case of this kind of precise indication, the number of non-main carrier can only be 1, that is, the three values of PCFICH on the non-main carrier can use 01, 01, 10 and 11 indicate that there is a one-to-one correspondence between the state of the carrier indicator bit used to indicate the non-main carrier and the value of the PCFICH of the non-main carrier. When the number of carrier indicator bits of the PDCCH is 3, it can represent the states of 8 carrier indicator bits 000, 001, 010, 011, 100, 101, 110, and 111. The number of carriers that the UE needs to monitor is 3 and assume There is one main carrier. In order to be able to definitely indicate each value of the PCFICH on the two non-main carriers, at least three carrier indication bits need to be allocated to the two non-main carriers. Therefore, in this In this case, for example, the status 000-001 of the carrier indicator bit can be used to indicate the main carrier, and the status 010-100 of the carrier indicator bit can be used to indicate a non-main carrier, and the status 010-100 of the three carrier indicator bits can be respectively It is used to indicate the value of the corresponding PCFICH, and the state 101-111 of the carrier indication bit is used to indicate another non-main carrier, and the states 101-111 of the three carrier indication bits can be used to indicate the value of the corresponding PCFICH respectively, That is, there is a one-to-one correspondence between the state of the carrier indicator bit used to indicate the non-main carrier and the value of the PCFICH of the non-main carrier; or, the state 000 of the carrier indicator bit can be used to indicate the main carrier, and the carrier indicator bit can be used The state 001~100 of the state indicates a non-main carrier, and among the states 001~100 of these four carrier indication bits, 001 and 010 can be used to indicate that the value of the corresponding PCFICH is 1, and 011 can be used to indicate the value of the corresponding PCFICH The value is 2, 100 can be used to indicate that the value of the corresponding PCFICH is 3, and the status 101~111 of the carrier indicator bit is used to indicate another non-main carrier, and the status 101~111 of the three carrier indicator bits can be used respectively To indicate the value of the corresponding PCFICH, that is, there is a one-to-one or many-to-one correspondence between the state of the carrier indicator bit used to indicate the non-main carrier and the value of the PCFICH of the non-main carrier.

For another example, when the number of carrier indicator bits of the PDCCH is 3, it can represent the states of 8 carrier indicator bits 000, 001, 010, 011, 100, 101, 110, and 111, and the number of carriers that the UE needs to monitor is 3. and assuming that there is one main carrier, in order to be able to definitely indicate each value of the PCFICH value on the two non-main carriers, the two non-main carriers need to allocate at least 3 carrier indication bit states, therefore, In this case, for example, the state 000 of the carrier indication bit can be used to indicate the main carrier, and the state 001-100 of the carrier indication bit can be used to indicate a non-main carrier, and the states 001-100 of the four carrier indication bits The states 001, 011, and 100 of the carrier indication bit can be used to indicate the value of the corresponding PCFICH respectively, and the state 001 of the carrier indication bit can be redundant when indicating the state of the PCFICH, and the state of the carrier indication bit 101～ 111 indicates another non-main carrier, and the states of these three carrier indicator bits 101~111 can be used to indicate the value of the corresponding PCFICH, that is, the state of the carrier indicator bit used to indicate the non-main carrier is different from that of the non-main carrier There is a one-to-one correspondence between the PCFICH values. Or, use the state 000 of the carrier indicator bit to indicate the main carrier, and use the state 010-100 of the carrier indicator bit to indicate a non-main carrier, and the states 010-100 of the three carrier indicator bits can be used to indicate the corresponding PCFICH respectively. value, and the status 001 of the carrier indicator bit is redundant, and the status 101-111 of the carrier indicator bit is used to indicate another non-main carrier, and the status 101-111 of the three carrier indicator bits can be used to indicate the corresponding PCFICH respectively. The value of , that is, there is a one-to-one correspondence between the state of the carrier indicator bit used to indicate the non-main carrier and the value of the PCFICH of the non-main carrier. In this case, the state of the carrier indicator bit 001 is neither used The carrier is indicated, and the PCFICH in the carrier does not need to be indicated, so the status 001 of the carrier indicating bit can also be completely redundant.

For another example, the state 000 of the carrier indication bit can be used to indicate the main carrier, and the state 001-100 of the carrier indication bit can be used to indicate a non-main carrier, and among the states 001-100 of the four carrier indication bits, 001 and 010 can be used for Indicates that the value of the corresponding PCFICH is 1, 011 can be used to indicate the value of the corresponding PCFICH is 2, 100 can be used to indicate the value of the corresponding PCFICH is 3, and the state of the carrier indicator bit 101~111 indicates another It is not the main carrier, and the states 101~111 of these three carrier indicator bits can be used to indicate the value of the corresponding PCFICH, that is, the state of the carrier indicator bit used to indicate the non-main carrier and the value of the PCFICH of the non-main carrier There is a one-to-one or many-to-one correspondence.

It can be understood that the allocation of carrier indicator bits is not limited to the above-mentioned forms, and those skilled in the art may allocate the main carrier and the non-main carrier arbitrarily under the condition that the above conditions are satisfied.

In another embodiment of the signaling processing method of the present invention, when 2 ^N is less than 3 times the number of carriers of the non-main carrier, where N is the number of bits indicated by the carrier, the corresponding relationship may include: Among the non-main carriers, there is a one-to-many correspondence between the state of the carrier indicator bit in the PDCCH corresponding to at least one non-main carrier and the value of the PCFICH on the one non-main carrier.

For example, assuming that there are 3 non-main carriers and 1 main carrier, and the number of carrier indicator bits is 3, 8 states can be represented. If each value of the PCFICH on each non-main carrier can be accurately indicated, at least 3*3=9 states are required, and in this case, the states of the carrier indication bit are 8, Therefore, it is impossible to exactly indicate each value of the PCFICH on each non-main carrier. At this time, the one-to-one relationship between the state of the carrier indicator bit indicating the non-main carrier and the value of the corresponding PCFICH can be preferentially used for indication, and when it is not enough, the state of the carrier indicator bit indicating the non-main carrier and the corresponding PCFICH The value of PCFICH indicates a one-to-many relationship. For example, the status 000 of the carrier indicator bit can be used to indicate the main carrier, and the status of the remaining carrier indicator bits can indicate the non-main carrier, wherein the status 001-011 of the carrier indicator bit indicates the first non-main carrier, and the status of the carrier indicator bit 100-110 indicate the second non-main carrier, and the status 111 of the carrier indication bit indicates the third non-main carrier. Therefore, a one-to-one correspondence can be used between the values of PCFICH on the first non-main carrier and the second non-main carrier and the states of the three carrier indicator bits, that is, the value of PCFICH is determined by the state of the carrier indicator bits Exactly indicate that for the third non-main carrier, the state of the carrier indication bit 111 can be used to indicate the three values of PCFICH values 1, 2 or 3, that is, the PCFICH on the third non-main carrier There is a one-to-many correspondence between the values and the states of the 3 carrier indicator bits, and the specific value of the PCFICH can be determined by UE self-detection.

The signaling processing method provided by the embodiment of the present invention will be described in detail below in the case of having a primary carrier through several specific examples. It should be noted that, in the following examples, the number of carrier indicator bits is 3, that is, 8 states 000, 001, 010, 011, 100, 101, 110, and 111 can be represented, which can correspond to states 0-7 respectively, and In the carrier aggregation, the maximum number of carriers for the UE is 5, and one of them is the main carrier. The case is described, but it is not limited to this case.

Example 1. Fixed primary carrier, UE monitors 1 carrier

For the case where the UE is notified to monitor only one carrier, the PDCCH can adopt the existing format length, that is, the above-mentioned carrier indication bit is not needed.

Example 2. Fixed primary carrier, UE monitors 2 carriers

For the situation where the UE is notified to monitor two carriers, for example, the base station and the UE can agree or notify through signaling that the carrier indicator bit status 0-4 can be used to indicate the main carrier C1, because the value of the PCFICH on the main carrier The information does not need to be indicated, so there are 5 state redundancy of the carrier indicator bit status 0~4; the carrier indicator bit status 5~7 can indicate the non-principal carrier C2, and use the status of these 3 carrier indicator bits to indicate the selection of PCFICH For example, the value of the PCFICH on the non-main carrier C2 can be indicated by the state 5 of the carrier indicator bit, and the value of the PCFICH on the non-main carrier C2 can be indicated by the state 6 of the carrier indicator bit. 2. Use the state 7 of the carrier indication bit to indicate that the value of the PCFICH on the non-main carrier C2 is 3. It can be understood that, the above indication method may also adopt other carrier indication bit allocation manners.

Example 3. Fixed primary carrier, UE monitors 3 carriers

For the case where the UE is notified to monitor 3 carriers, for example, the status 0~1 of the carrier indicator bit can be used to indicate the main carrier C1, and there are 2 status redundancy of 0~1; the status 2~4 of the carrier indicator bit can be used Indicate the non-main carrier C2, and multiplex the status of these 3 carrier indication bits to indicate the 3 values of the PCFICH value of the non-main carrier C2; indicate the non-main carrier C3 with the status 5~7 of the carrier indication bit, and use this The states of the 3 carrier indication bits indicate 3 values of the PCFICH of the non-main carrier C3.

Example 4. Fixed primary carrier, UE monitors 4 carriers

For the case where the UE is notified to monitor 4 carriers (including 1 primary carrier and 3 non-principal carriers), since the carrier indicator bit is 3 bits, the states of the carrier indicator bits that can be represented are 8, which is less than 3 times the non-main carrier The carrier number of the main carrier, therefore, the state of the carrier indication bit at this time cannot exactly indicate the value of each PCFICH on each non-main carrier. In this case, a one-to-many correspondence can be set between the state of at least one carrier indicator bit used to indicate the state of the carrier indicator bit of the non-main carrier and the value of the PCFICH of the non-main carrier relation. For example, in this example, the granularity of the state indication of some carrier indication bits can be increased, the state 0 of the carrier indication bit is used to indicate the main carrier C1, the states 1-3 of the carrier indication bits are used to indicate the non-main carrier C2, and Three values indicating the value of the PCFICH of the non-main carrier C2; the state 4-5 of the carrier indicator bit indicates the non-main carrier C3, and the state 4 of the carrier indicator bit indicates that the value of the PCFICH of the non-main carrier C3 is 1, The state 5 of the carrier indication bit indicates that the PCFICH value of the non-main carrier C3 is 2 or 3; the state 6-7 of the carrier indication bit indicates the non-main carrier C4, and the state 6 of the carrier indication bit indicates the value of the PCFICH of the non-main carrier C4. The value is 1, and the state 7 of the carrier indication bit indicates that the value of the PCFICH of the non-main carrier C4 is 2 or 3. For the case where the value of the PCFICH indicates the status of multiple carrier indication bits, for example, the state 7 of the carrier indication bit is used to indicate that the value of the PCFICH of the non-main carrier C4 is 2 or 3, then the UE can set the value of the PCFICH to 2 or 3, thereby reducing the scope of detection and improving the accuracy of detection.

For another example, for non-principal carriers that cannot be indicated, the value of the PCFICH corresponding to the non-principal carrier may also be indicated as 1, 2, and 3, that is, there is no indication, and the value of the PCFICH is detected by the UE Specifically 1, 2 or 3. Since the channel carrier indication bits of the UE are relatively good at this time, even if more values are indicated, the misdetection rate of PCFICH values is relatively low.

Example 5. Fixed main carrier, UE monitors 5 carriers

For the case where the UE is notified to monitor 5 carriers (including 1 primary carrier and 4 non-principal carriers), since the carrier indicator bit is 3 bits, the states of the carrier indicator bits that can be represented are 8, which is less than 3 times the non-main carrier The carrier number of the main carrier, therefore, the carrier indication bit at this time cannot exactly indicate the value of each PCFICH on each non-main carrier. In this case, a one-to-many correspondence can be set between the state of at least one carrier indicator bit used to indicate the state of the carrier indicator bit of the non-main carrier and the value of the PCFICH of the non-main carrier relation. For example, in this example, the state 0 of the carrier indicator bit can be used to indicate the main carrier C1, the states 1 to 3 of the carrier indicator bit can indicate the non-main carrier C2, and indicate the 3 values of the PCFICH of the non-main carrier C2 Value; the state 4-5 of the carrier indication bit indicates the non-main carrier C3, and the state 4 of the carrier indication bit indicates the PCFICH value of the non-main carrier C3 is 1, and the state 5 of the carrier indication bit indicates the PCFICH of the non-main carrier C3 The value of the carrier indicator bit is 2 or 3; the state 6 of the carrier indicator bit indicates the non-main carrier C4, and the state 6 of the carrier indicator bit indicates the values of PCFICH of the non-main carrier C4 are 1, 2 and 3, and the state of the carrier indicator bit is 7 Indicate the non-main carrier C5, and indicate that the values of the PCFICH of the non-main carrier C5 are 1, 2 and 3. For the case of indicating the states of multiple carrier indication bits for the PCFICH value, the UE can detect by itself. Since a subset of the PCFICH value set is indicated, the detection range is reduced and the detection accuracy is improved. For the value of the indicated PCFICH to be 1, 2 and 3, which is equivalent to the case of no indication, the UE can check whether the value of the PCFICH is 1, 2 or 3. Since the channel status of the UE is good at this time, even if More values are indicated, and the misdetection rate of the value of PCFICH is also lower.

Since the number of carrier indicator bits is set to 3 bits to indicate the states of 8 carrier indicator bits in the above-mentioned examples 4 and 5, the number of carriers that can be accurately indicated is no more than 3. Therefore, in order to increase the number of carriers that can be accurately indicated Number, the present embodiment can also increase the number of bits of the carrier indicator bit, for example, the number of bits of the carrier indicator bit is set to 4, at this time, it can represent 16 kinds of carrier indicator bits, therefore, in the case of fixing 1 main carrier In this case, the number of carriers that can be accurately indicated can reach 5, that is, in the above-mentioned examples 1 to 5, each value of the PCFICH values of all non-primary carriers can be accurately indicated. It can be seen that when the UE monitors 1 to 3 carriers, the carrier indication bit can be set to 3 bits, so the PCFICH values of the 1 to 3 carriers can be accurately indicated. For the UE monitoring 4 to 5 carriers In this case, the carrier indicator bit can be set to 4 bits, so as to accurately indicate the value of the PCFICH of 4 to 5 carriers. In this case-by-case indication mode, the PDCCH can have two formats for adding carrier indicator bits. length. Or, for the case where the UE monitors 1 to 5 carriers, the carrier indicator bit can be set to 4 bits, so that it can accurately indicate the value of the PCFICH of 1 to 5 carriers. In the case of bits it can be a format length.

In addition, for the case where the primary carrier can change dynamically, it is only necessary to extend the concept of the primary carrier to determine the primary carrier based on the detection of the PDCCH by the UE, that is, which carrier or carriers the PDCCH is not necessarily prioritized on. For example, the The carrier with the lowest frequency label of the PDCCH detected by the UE is regarded as the main carrier, and the value information of the PCFICH on it does not need to be indicated, and implicit verification can be performed through the PDCCH on it.

Taking the UE monitoring three carriers as an example, assuming that all PDCCHs of the UE are scheduled on the carrier C1, and the UE searches for the PDCCH from the carrier C1, that is, the carrier C1 is equivalent to the main carrier. Since the value of the PCFICH of C1 does not need to be indicated, The states 0-1 of the carrier indication bits can indicate the carrier C1 and are redundant, and the states 2-4 and 5-7 of the carrier indication bits can respectively indicate the carrier C2 and the carrier C3, and at the same time indicate the PCFICH on the carriers C2 and C3 respectively. Three values of the value; similarly, assuming that all PDCCHs of the UE are scheduled on the carrier C2, and the UE searches the PDCCH from the carrier C2, that is, the carrier C2 is equivalent to the main carrier, because the value of the PCFICH of the carrier C2 does not need to be indicated , and no PDCCH is detected on carrier C1, the states 0-1 of the carrier indication bits can indicate the carrier C2 and be redundant, and the states 2-4 and 5-7 of the carrier indication bits can respectively indicate the carriers C1 and C3, and at the same time Indicate the three values of the PCFICH values on the carrier C1 and the carrier C3 respectively; in the same way, assuming that all PDCCHs of the UE are scheduled on the carrier C3, and the UE searches for the PDCCH from C3, that is, the carrier C3 is equivalent to the main carrier. Since the value of the PCFICH of C3 does not need to be indicated, and no PDCCH is detected on the carrier C1 and the carrier C2, the status 0~1 of the carrier indicator bit can indicate C3 and is redundant, and the status 2~4 and 5 of the carrier indicator bit ~7 may respectively indicate the carrier C1 and the carrier C2, and at the same time respectively indicate three values of the values of the PCFICH on the carrier C1 and the carrier C2.

In the above embodiments of the present invention, the carrier indication bit of the PDCCH is used to indicate the value of the PCFICH on the non-primary carrier where the PDSCH corresponding to the PDCCH is located. Even if the PDCCH is carried on other carriers, the UE can also use the PDCCH. The bit knows the PCIFICH on the non-main carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's value verification of the PCFICH, and then demodulating the PDSCH from the correct starting position information of the PDSCH, The false detection rate of the PDSCH is effectively reduced, and subsequent unnecessary feedback retransmissions are avoided.

FIG. 4 is a flowchart of another signaling processing method provided by an embodiment of the present invention. As shown in FIG. 4, the method of this embodiment may include:

Step 401, generate at least one physical downlink control channel PDCCH respectively corresponding to at least one carrier, the state of the carrier indicator bit in each PDCCH in the at least one PDCCH is the physical control format on the carrier corresponding to each PDCCH There is a corresponding relationship between the values of the indication channel PCFICH;

Step 402: Send the at least one PDCCH to the user equipment, for the user equipment to obtain the PCFICH on the carrier corresponding to each PDCCH according to the state of the carrier indicator bit in each PDCCH in the at least one PDCCH value of .

In this embodiment, the carrier indication bit of the PDCCH is used to indicate the value of the PCFICH of the carrier where the PDSCH corresponding to the PDCCH is located. In the case of no main carrier, the indication granularity can be increased, that is, one carrier indication bit is used to indicate the value of the PCFICH. A subset of the value set can also indicate the value of PCFICH by increasing the number of carrier indicator bits. Therefore, even if the PDCCH is carried on another carrier, the UE can also know its value through the carrier indicator bit on the PDCCH. PCIFICH on the carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's value detection of the PCFICH, and then demodulating the PDSCH from the correct starting position information of the PDSCH, effectively reducing the error of the PDSCH The detection rate avoids subsequent unnecessary feedback retransmissions.

In another embodiment of the signaling processing method of the present invention, when the number of 2 ^N is greater than or equal to 3 times the number of carriers of the at least one carrier, where N is the number of bits indicated by the carrier, the corresponding relationship can be Including: a one-to-one correspondence between the state of the carrier indicator bit of the PDCCH corresponding to each of the at least one carrier and the value of the PCFICH on each of the carriers, or a many-to-one correspondence relation. When 2 ^N is less than 3 times the number of carriers of the at least one carrier, where N is the number of bits indicated by the carrier, the correspondence may include: at least one of the at least one carrier corresponds to There is a one-to-many correspondence between the state of the carrier indicator bit in the PDCCH and the value of the PCFICH on the one carrier.

Specifically, since the primary carrier is not defined in this embodiment, the PDCCH can be flexibly placed on one or several carriers, but which carrier will carry the PDCCH is not fixed, and it cannot be determined which carrier the PCFICH The value can be implicitly checked by the PDCCH without indication. Therefore, if the value of the PCFICH on each carrier is to be accurately indicated, at least 3 carrier indication bits need to be reserved for each carrier.

Assuming that the number of carriers that the UE needs to monitor is 5, and the carrier indication bits of the PDCCH are 4 bits, 15 states of the carrier indication bits need to be reserved, while the states of the carrier indication bits of the PDCCH are 16, which is more than three times the The number of carriers of at least one carrier, that is, 5 carriers. At this time, the state of the carrier indicator bit of the PDCCH can accurately indicate each value of the value of the PCFICH on each carrier. In this case, a The possible scheme is that the states 0-2 of the carrier indication bits indicate the carrier C1 and are used to indicate the values of the three PCFICHs; the states 3-5 of the carrier indication bits indicate the carrier C2 and are used to indicate the values of the three PCFICHs; the carrier indication bits Bit statuses 6-8 indicate carrier C3 and are used to indicate the values of the three PCFICHs of carrier C3; statuses of carrier indication bits 9-11 indicate carrier C4 and are used to indicate the values of the three PCFICHs of carrier C4; carrier indication Bit states 12 to 15 indicate the carrier C5, and are used to indicate the values of the three PCFICHs of the carrier C5, wherein the states 12 and 13 of the carrier indication bit can indicate that the value of the PCFICH of the carrier C5 is 1, and the state of the carrier indication bit is 14 The value of the PCFICH of the carrier C5 may be indicated to be 2, and the state of the carrier indication bit 15 may indicate the value of the PCFICH of the carrier C5 to be 3. Therefore, in this case, there is a one-to-one or many-to-one correspondence between the carrier indicator bit and the value of the PCFICH of the at least one carrier, such as 12 and 13 in this embodiment and the value of the PCFICH There is a many-to-one correspondence between the values, that is, the corresponding relationship between the states of the two carrier indicator bits and the value of a PCFICH, such as the state of the rest of the carrier indicator bits in this embodiment, and the value of the PCFICH is a one-to-one correspondence.

Assuming that the number of carriers that the UE needs to monitor is 3, and the carrier indicator bits of the PDCCH are 3 bits, the status of 9 carrier indicator bits needs to be reserved. At this time, the status of the carrier indicator bits of the PDCCH cannot accurately indicate each carrier In this case, a possible scheme is that the status 0~2 of the carrier indicator bit indicates the carrier C1, and is used to indicate the values of the three PCFICH; the carrier indicator bit The state 3~5 of the carrier indication bit indicates the carrier C2, and is used to indicate the values of the three PCFICH; the state 6~7 of the carrier indication bit indicates the carrier C3, and the state 6 of the carrier indication bit indicates that the value of the PCFICH is 1, and the value of the carrier indication bit is 1. State 7 indicates that the value of the PCFICH is 2 or 3, and the specific value of the PCFICH is 2 or 3, which is detected by the UE. Therefore, in this case, there is a one-to-many correspondence between the state of at least one of the carrier indicator bits and the value of the PCFICH, for example, the state 7 of the carrier indicator bit and the value 2 or 3 of the PCFICH are One-to-two correspondence.

In this embodiment, the state of the carrier indication bit of the PDCCH is used to indicate the value of the PCFICH of the carrier where the PDSCH corresponding to the PDCCH is scheduled. The status indicates a subset of the value set of PCFICH, and the value of PCFICH can be indicated by increasing the number of carrier indicator bits. Therefore, even if the PDCCH is carried on other carriers, the UE can pass the carrier on the PDCCH The indicator bit knows the PCIFICH on the carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's value detection of the PCFICH, and then demodulating the PDSCH from the correct starting position information of the PDSCH, effectively reducing the The false detection rate of the PDSCH is improved, and unnecessary subsequent feedback retransmissions are avoided.

In another embodiment of the signaling processing method of the present invention, the corresponding relationship may include: the state of the carrier indication bit in the PDCCH carried by the cross-carrier indicates that the value of the PCFICH on the carrier where the PDCCH carried by the cross-carrier is located is related to the value of the PCFICH The values of the PCFICHs on the carriers where the PDSCHs corresponding to the PDCCHs carried by the cross-carriers are located are the same or different.

Specifically, this embodiment does not impose any restrictions on the value of the PCFICH transmitted by the base station, but imposes some restrictions on the indication of the value of the PCFICH to save the state of the carrier indication bit, such as indicating that the carrier that does not carry the PDCCH of a UE Whether the value of the PCFICH is equal to the value of the PCFICH on the carrier carrying the PDCCH.

In this embodiment, two carriers are taken as an example for description. The PDSCH of carrier C2 is indicated by the PDCCH carried across carriers, that is, the PDCCH corresponding to the PDSCH on C2 is carried on carrier C1, and if the PDCCH carried on carrier C1 is detected, then the PDCCH on carrier C1 can be known. The value of PCFICH. For example, the following solutions can be adopted.

1) Apply the carrier indication bit of the PDCCH corresponding to the PDSCH of the carrier C2 carried on the carrier C1 to indicate whether the value of the PCFICH on the carrier C2 is equal to the value of the PCFICH already known on the carrier C1, that is, if the carrier C1 When the value of the PCFICH on the carrier C1 is 2, and the carrier indication bit of the PDCCH corresponding to the PDSCH carried on the carrier C1 and the PDSCH on the carrier C2 indicates that the two are equal, then the value of the PCFICH on the carrier C2 is also 2; otherwise if When the two are not equal, the possible value of the PCFICH on the carrier C2 is 1 or 3, and whether the value of the PCFICH is 1 or 3 can be detected by the UE itself;

When the value of PCFICH on carrier C1 is 2, and the carrier indication bit of the PDCCH corresponding to carrier C2 indicates that the value of PCFICH on carrier C1 is not equal to the value of PCFICH on carrier C2, but the UE detects that the value of PCFICH on carrier C2 The value of the PCFICH is equal, that is, the value of the PCFICH on the carrier C2 is detected to be 2, then the UE can adopt two processing methods:

a) When the UE knows that the value of the PCFICH on the carrier C1 is 2, and the value of the PCFICH on the indicated carrier C2 is not equal to the value of the PCFICH on the carrier C1, then the UE only selects the value of the PCFICH at this time Detection is performed in a set of 1 and 3, compared to the case where the UE needs to detect all three PCFICH values, since the possible values of PCFICH values that may need to be detected are reduced, the detection accuracy rate can be improved.

b) The UE detects that the value of the PCFICH of C2 is equal to that of C1, but the state of the carrier indicator bit of the PDCCH corresponding to carrier C2 indicates that the value of the PCFICH of carrier C1 is not equal to the value of the PCFICH of carrier C2, Then the UE determines that the verification is wrong, and the UE can give up the data packet, and then will not feed back ACK/NACK to the base station, and the base station can think that the UE missed the PDCCH corresponding to the data packet, so as to reschedule the same data packet, It does not cause the influence of subsequent feedback and retransmission combination caused by the error detection of the PCFICH value.

2) Indicate that the values of PCFICH on the carrier that does not carry the PDCCH of a certain UE are some subsets of the three values. When the state of the carrier indicator bit is sufficient, the carrier indicator bit can indicate the PCFICH on each carrier. A specific value among the three values of the value, and a one-to-one or many-to-one correspondence between the state of the carrier indicator bit and the value of the PCFICH of the at least one carrier is used to indicate; when the carrier indicator bit When the states of the carrier indicator bits are not enough, a one-to-many correspondence between the state of at least one carrier indicator bit and the value of the PCFICH of the at least one carrier may be used for indication. For example, the state 0 of the carrier indicator bit can be used to indicate that the value of the PCFICH is 1, and the state of the carrier indicator bit 1 can indicate that the value of the PCFICH is one of 2 and 3, and the UE can detect in 2 and 3 by itself. Therefore, in this embodiment, the states of the two carrier indicator bits can be used to indicate whether the values of the PCFICH are equal or not, or to indicate some subsets. Therefore, the state of the carrier indicator bits is 2n, where n is the number of carriers, which can be It can be seen that when the number of carrier indication bits is 3 bits, that is, 8, a maximum of 4 carriers can be supported, and if it exceeds, the indication manner described in the above-mentioned embodiment can be used for indication.

In addition, the PDCCH corresponding to the main carrier does not add carrier indicator bits, while other PDCCHs need to add 3 bits of carrier indicator bits, so that the UE needs to detect two format lengths when performing PDCCH detection (the format length of the scheduling main carrier and non-main carrier different).

Based on the above assumptions and the number of main carriers is 1, when the number of carrier indication bits is 3, 2 bits of the carrier indication bits (assuming that the maximum number of carriers aggregated by the UE is 5) can indicate the PDSCH scheduling of 4 non-main carriers (The scheduling of the main carrier is identified by the PDCCH without adding the carrier indication bit), and at this time, the remaining 1 bit can be used to indicate the carrier indication bit of the PDCCH carried by the cross-carrier. The bit is used to indicate the carrier where the PDCCH carried by the cross-carrier is located The value of the PCFICH is the same or different from the value of the PCFICH of the carrier where the PDSCH corresponding to the PDCCH carried by the cross-carrier is located; or an indication of other subsets.

This scheme is at the expense of PDCCHs with different format lengths, so that certain subset indications will not be limited by carrier indication bits due to the large number of carriers. For example, in the above scheme 2), a maximum of 4 carriers can be indicated, and this scheme can support 5 carriers, because the PDCCH on the primary carrier does not need to be loaded with wave indicator bits.

Another embodiment of the signaling processing method of the present invention can also impose certain restrictions on the value of the PCFICH transmitted by the base station, specifically the following several solutions can be adopted:

plan 1:

Limit the base station to transmit PCFICH on a carrier that may be used for cross-carrier indication. The value of PCFICH is a subset of three values, such as {1, 2, 3} or {2, 3} or {1, 2} or { 2, 3} or {1, 3}, so that the UE indicated by the cross-carrier PDCCH can know the restriction on the value of PCFICH, for example, it can be pre-defined for the standard or can be configured through high-layer semi-static signaling, so the UE only needs to be in Detect the value of PCFICH in a subset of the restricted PCFICH values, thereby reducing the values that need to be checked and improving the detection performance; for UEs under the LTE network or UEs that are not indicated by the cross-carrier PDCCH in the LTE-A network , will not know such configuration information, so these UEs can also normally detect according to the situation of the three PCFICH values without being affected.

Scenario 2:

Since the value of PCFICH occupies two symbols, the value of PCFICH can have 4 values. This solution can use the fourth value that the existing PCFICH value is not used (UE under the LTE network will not identification) and some value of the current PCFICH value, such as {1, 4} or {2, 4} or {3, 4}, these indicated subsets can only be used in the LTE-A network The UE or the UE indicated by the PDCCH carried by the cross-carrier is informed, thereby indicating the actual value of some possible PCFICH values, such as a fixed value of a certain PCFICH, or indicating the relative value of the current PCFICH value, or Some subsets etc.

Option 3:

The restriction on the value of the transmitted PCFICH by the above base station and the carrier indicator bit of the PDCCH are jointly used. For example, the set of PCFICH values that the base station restricts to transmit is {2, 3}, and further indicates which value is 2 or 3 through the state of the carrier indicator bit of the PDCCH, for example, the 3-bit carrier indicator bit state 010 to indicate that the value of the current PCFICH is 2 in the set, so that it is known that the corresponding PDCCH occupies 2 symbols, and then it is known that the data start position of the PDSCH starts from the third symbol.

In the above-mentioned embodiments of the signaling processing method of the present invention, the state of the carrier indicator bit is used to indicate the value of the PCFICH. In fact, there may be some idle or filling bits in the PDCCH, and these idle or filling bits can also be used to indicate the value of the PCFICH. value, or combine these idle or filling bits with the carrier indication bit of the PDCCH to indicate the value of the PCFICH together.

For example, for example, the PDCCH in the LTE network has two formats 0 and 1. The signaling lengths of the two are required to be equal, but in some cases there may be a difference of several bits. In this case, the method with the smaller length The PDCCH of two formats is filled with "0", so that the signaling lengths of the PDCCHs of the two formats are equal; some formats of the PDCCH in the LTE-A system may also have the same signaling length, and there may also be some padding bits at this time , these padding bits can be used to indicate the value of the PCFICH.

In addition, after the above embodiment uses the carrier indicator bits of the PDCCH or some possible padding bits of the PDCCH to indicate the value of the PCFICH, there may still be some usable carrier indicator bits, and these redundant carrier indicator bits also Can be used as it is used. The foregoing PDCCHs all belong to the category of the downlink scheduling grant (DL_grant), while the uplink scheduling grant (UL_grant) does not need to indicate the value of the PCFICH.

For example, among the carrier indicator bits of the PDCCH, one or some carrier indicator bits may be fixed as Cyclic Redundancy Check (Cyclic Redundancy Check, CRC for short) bits, so as to reduce the false alarm probability of the PDCCH. For example, assuming that the states 0 to 4 of the carrier indication bits of the carrier indication bits can indicate the main carrier C1, then the states of the five redundant carrier indication bits can be fixed as the state 0 of the carrier indication bit, therefore, the UE is receiving In the case of PDCCH, the status of these fixed redundant carrier indicator bits can be used to increase the CRC check capability, thereby reducing the probability of PDCCH false alarms;

As for the state of the redundant carrier indication bit in the DL_grant, it can be used to indicate the opening and closing of other carriers to achieve the effect of power saving. For example, the UE semi-statically detects a certain number of carriers according to the traffic volume notified by the base station, and further dynamically controls the dynamic closing and opening of the carriers to be detected through the state of the redundant carrier indicating bit of the carrier indicating bit. Specifically, if the UE detects 3 carriers according to the semi-static notification from the base station, if a certain carrier does not schedule data within a short period of time, since the semi-static signaling is relatively slow, the idle carrier indicator bit of the carrier indicator bit can be used In this case, the UE only needs to detect the other two carriers. After that, the base station can also semi-statically or use the state of the idle carrier indicator bit of the carrier indicator bit to dynamically turn on the unscheduled carrier. A carrier for scheduling data or other carriers. By using the state of the redundant carrier indicator bit of the carrier indicator bit, the carrier that does not bear the physical downlink control channel of the user equipment is turned on and off, so as to achieve the purpose of power saving. The status of the redundant carrier indication bit in DL_grant can also be used to indicate different physical uplink control channel (Physical Uplink ControlChannel, referred to as: PUCCH) (including ACK/NACK, channel quality information (Channel QuantityInformation, hereinafter referred to as: CQI)) and other areas . For the PUCCH area, it can be the PUCCH area of the existing LTE network, or the dedicated PUCCH area in the LTE-A network. In particular, it can be a coordinated multi-point (Coordianted Multi-Point, hereinafter referred to as: CoMP) UE A dedicated PUCCH area, or a relay (Relay) UE-specific PUCCH area; it can also be used to indicate different PUCCH channels in the same PUCCH area. Different PUCCH channels can be obtained through different control channel element numbers. For example, the UE obtains different PUCCH resource regions according to the state of the redundant carrier indicator bit of the carrier indicator bit, and transmits the PUCCH on the indicated PUCCH resource region; wherein, the PUCCH resource region carries uplink ACK/NACK, CQI, etc. The information; the PUCCH resource area may specifically be information such as time information, frequency information, or codeword information. The UE obtains different PUCCHs in the same PUCCH resource area according to the state of the redundant carrier indication bit of the carrier indication bit, and transmits the PUCCH on the PUCCH indicated by the UE. The resource area can specifically be the time information, frequency information or code of the PUCCH Word information and other resource area information.

For the status of the redundant carrier indicator bit in UL_grant, it can be used to indicate different physical hybrid adaptive retransmission request indicator channel (Physical hybrid ARQ Indicator Channel, hereinafter referred to as: PHICH) area, where the PHICH area can be the current The PHICH area with LTE network can also be the dedicated PHICH area in the LTE-A network. In particular, it can be the dedicated PHICH area of CoMP UE or the dedicated PHICH area of Relay UE; it can also be used to indicate the same PHICH For different PHICH channels in the area, different PHICH channels can be obtained through different uplink physical resource block (Physical Resource Block, hereinafter referred to as: PRB) labels, or through different antenna demodulation pilot (Demodulation Reference Signal, hereinafter referred to as: DMRS), or a mixture of PRB number and DMRS. For example, the UE obtains different PHICH resource regions according to the state of the redundant carrier indicator bit of the carrier indicator bit, and transmits the PHICH on the indicated PHICH resource region; wherein, the resource region may specifically be: time information, frequency information , codeword information and other resource area information. The UE obtains different PHICH channels in the same PHICH resource area according to the state of the redundant carrier indication bit of the carrier indication bit, and transmits the PHICH on the indicated PHICH; where the PHICH resource area can be: time information, frequency information, code Word information and other resource area information. Obtain different PHICHs in the same PHICH resource area according to the state of the redundant carrier indicator bit of the carrier indicator bit; the PHICH channel corresponds to the DMRS through the lowest label of the PRB, and a UE can be scheduled with multiple uplink PRBs, and there is only one DMRS value. Since the UE can be configured with multiple antennas, and the UE has multiple DMRS values corresponding to multiple antennas, the state of the idle carrier indicator bit in the carrier indicator bits can be used to indicate different uplink PRB numbers or different PHICHs corresponding to different DMRSs.

In particular, there is no PDCCH on some LTE-A network-specific carriers, and there will be no PCFICH value at this time, so these carriers do not need information indicating the value of PCFICH, so the redundancy in the carrier indicator bit The states of the redundant carrier indicator bits will be further increased, so that when the states of these redundant carrier indicator bits indicate the above information, they can also indicate the states of more carrier indicator bits.

In yet another embodiment of the signaling processing method of the present invention, for the two cases where there is no cross-carrier indication (option 1) in FIG. 1 and the presence of cross-carrier indication (option 2) in FIG. 2, a cell-specific configuration can be used. There are several options:

Scheme 1: No signaling configuration is required, but the carrier indicator bit needs to exist in the PDCCH of the UE in the two options. At this time, the UE can be based on the scheduling of the base station, that is, if the UE determines that it is option 1 from detecting the PDCCH, at least one carrier The value of the PCFICH can be independently configured and detected by the UE; if the UE determines that it is option 2 from the detection of the PDCCH, the value of the PCFICH of the carrier of the PDSCH indicated by the cross-carrier is the same as the PCFICH of the carrier where the PDCCH scheduling this PDSCH is located. The values are the same.

Solution 2: High-level semi-static signaling configuration is required. If option 1 is configured, the PDCCH of the UE does not need to have a carrier indicator bit. At this time, the value of the PCFICH of at least one carrier can be independently valued; if option 2 is configured , then the PDCCH of the UE needs to have a carrier indication bit. At this time, if the UE detects the PDCCH and determines that there is no cross-carrier indication, the value of the PCFICH of at least one carrier can be independent and for the UE to detect; if the UE detects the PDCCH and determines that there is In the case of cross-carrier indication, the value of the PCFICH of the carrier of the PDSCH indicated by the cross-carrier is the same as the value of the PCFICH of the carrier where the PDCCH scheduling the PDSCH is located.

The configuration of option 1 and option 2 can also be configured through UE-specific signaling, and the specific PCFICH value acquisition method is the same as the above-mentioned solution 2.

FIG. 5 is a flowchart of another signaling processing method provided by an embodiment of the present invention. As shown in FIG. 5, the method of this embodiment may include:

Step 501: Receive at least one PDCCH respectively corresponding to at least one carrier and sent by a base station.

There is a corresponding relationship between the state of the carrier indicator bit in the PDCCH corresponding to the non-main carrier in the at least one carrier and the value of the physical control format indication channel PCFICH on the non-main carrier.

In this embodiment, the at least one carrier may include a primary carrier and a non-primary carrier. The so-called primary carrier is a carrier that preferentially bears and schedules the PDCCH. There may be one primary carrier or multiple primary carriers. The base station and the UE can agree in advance or notify which one or several carriers are the main carrier through signaling, or the base station informs the UE which or several carriers are the main carrier through semi-static signaling, that is, the main carrier is relatively fixed for a long period of time Or it changes slowly. For example, the base station and the UE can agree or notify the carrier corresponding to the lowest frequency label as the primary carrier through signaling. For example, the UE may regard the carrier corresponding to the lowest frequency number on which the PDCCH is detected as the primary carrier. Regardless of the relative fixed main carrier or the dynamic change of the main carrier, since the main carrier always carries the scheduling PDCCH first, the value of the PCFICH on the main carrier can be implicitly verified through the PDCCH carried on it, so , the value of the PCFICH on the main carrier may be indicated without the carrier indication bit, so that some carrier indication bits can be saved. The carrier indication bit on the PDCCH corresponding to the non-main carrier needs to indicate the value of the PCFICH on the non-main carrier.

When the number of carriers carrying multiple independent PDCCH carriers is less than the number of carriers carrying PDSCH carriers that the UE needs to monitor, that is, the PDCCH is separated from the PDSCH, that is, the PDCCH is carried across carriers. At this time, several carriers can be set in the PDCCH The indication bit is used to indicate the corresponding relationship between the PDCCH and the carrier on which the correspondingly scheduled PDSCH is located. For example, if the carrier indicator bit is 2 bits, it can indicate 2 ² =4 states; if the carrier indicator bit is 3 bits, it can indicate 2 ³ =8 states; if the carrier indicator bit is 4 bits, it can indicate 2 ⁴ = 16 states. Those skilled in the art can understand that the carrier indicator bit does not exclude other bit numbers, so as to indicate less or more states.

In the case of cross-carrier carrying of PDCCH, since the PDCCH is separated from the carrier where the PDSCH that carries its corresponding scheduling is separated, the value of the PCFICH on this carrier cannot be verified through the PDCCH, so the value of the PCFICH on this carrier occurs It cannot be checked out during error detection. In order to solve this problem, in this embodiment, the above-mentioned carrier indication bit can not only be used to indicate the main carrier and the non-main carrier, but also can be used to indicate the value of the PCFICH on the non-main carrier. In this embodiment, the value of the PCFICH can be 1, 2 or 3, that is, in one case, the value of the PCFICH can respectively represent that the position of the PDCCH is the first 1, 2 or 3 symbols of the current subframe, In another case, that is, when the bandwidth is small, the value of the PCFICH may respectively represent that the position of the PDCCH is the first 2, 3 or 4 symbols of the current subframe.

If the carrier indication bit can indicate the value of PCFICH on each non-main carrier that the UE needs to monitor one by one, that is, the values of the three PCFICH on each non-main carrier can use at least one carrier indication bit status Indicated, the value of PCFICH on each non-main carrier can be accurately indicated.

If the state of the carrier indicator bit cannot uniformly indicate the value of the PCFICH on each non-main carrier that the UE needs to monitor, that is, the number of bits of the carrier indicator bit is small, and the state of the carrier indicator bit is not enough to indicate one by one Each value of PCFICH on each non-main carrier, that is, when there is a one-to-many correspondence between the state of the carrier indicator bit and the value of PCFICH, the value of PCFICH on each non-main carrier cannot At this time, two methods can be adopted. First, the carrier indicator bit can be used to indicate some subsets of the value set of PCFICH, that is, the state of a carrier indicator bit can be used to indicate two possible values of PCFICH. Or three values, for example, the status of a carrier indicator bit can indicate that the value of the corresponding PCFICH is 2 or 3, and what is the value of the specific PCFICH, the UE can detect from the indicated value, for example, from Whether the value of the specific PCFICH is 2 or 3 is detected in the above value 2 or 3; secondly, the number of bits of the carrier indicator bit can be increased, for example, when the number of bits of the carrier indicator bit is 3, it can represent 8 states , and when the number of carrier indicator bits is 4, it can represent 16 states. Therefore, the more the number of carrier indicator bits, the more PCFICH values that can be accurately indicated.

Step 502: Obtain the value of the PCFICH on the non-primary carrier according to the state of the carrier indicator bit in the PDCCH corresponding to the non-principal carrier.

After receiving the PDCCH, the UE can determine the value of the PCFICH on the non-main carrier according to the state of the carrier indicator bit. For the situation that there is a many-to-one or one-to-one correspondence between the state of the carrier indicator bit and the value of the PCFICH on each non-main carrier, the UE can know the value of the PCFICH exactly, with the carrier indicator bit as the 3 bits For example, the base station and the UE can agree in advance or notify the carrier indication bit that there are 3 bits, and the state of the carrier indication bit can be used to indicate that the PDCCH corresponds to the third non-main carrier, and at the same time It is used to indicate that the value of the PCFICH on the third non-main carrier is 2, that is, there is a one-to-one correspondence between the state 010 of the carrier indication bit and the value of 2 on the PCFICH on the third non-main carrier. Correspondingly, when the UE receives the PDCCH, it can know that the PDCCH corresponds to the PDSCH on the third non-main carrier according to the status 010 of the carrier indicator bit, and the PDCCH occupies 2 symbols, then the UE can know that the PDSCH on the third non-main carrier The data start position of the PDSCH on the 3 non-main carriers is the third symbol, so that the UE can extract the PDSCH from the third symbol.

Alternatively, the states of the carrier indication bits 001 and 011 can both be used to indicate that the PDCCH corresponds to the third non-main carrier, and at the same time be used to indicate that the value of the PCFICH on the third non-main carrier is 2, that is, the carrier indication There is a many-to-one correspondence between the bit states 001 and 011 and the value 2 of the PCFICH on the third non-primary carrier, then when the UE receives the PDCCH, it can know the PDCCH according to the state of its carrier indicator bit. The PDCCH corresponds to scheduling the PDSCH on the third non-main carrier, and the PDCCH occupies 2 symbols, then the UE can know that the data start position of the PDSCH on the third non-main carrier is the third symbol, so that The UE can start extracting the PDSCH from the third symbol.

In the case of a one-to-many correspondence between the carrier indicator bit and the value of the PCFICH, the UE cannot exactly know the value of the PCFICH on the corresponding non-main carrier through the carrier indicator bit. If the state of a certain carrier indicator bit or the state of some carrier indicator bits agreed by the base station and the UE in advance or notified by signaling indicates a subset of all values of the PCFICH of a non-primary carrier, the UE receives For the PDCCH, if the status of a certain carrier indicator bit or the status of some carrier indicator bits indicates a subset of all PCFICH values, the UE can detect in this subset to determine the value of the PCFICH Specifically which value in the subset, for the situation that there is a many-to-one or one-to-one correspondence between the state of the other carrier indicator bits and the value of the PCFICH, the UE can know the value of the PCFICH exactly.

Still taking the example that the carrier indicator bit is 3 bits, the base station and the UE can agree in advance or notify the carrier indicator bit that there are 3 bits, and the state of the carrier indicator bit 011 can be used to indicate that the PDCCH corresponds to the third It is not the main carrier, and at the same time it is used to indicate that the value of the PCFICH on the third non-main carrier is 2 or 3, then when the UE receives the PDCCH, it can know the corresponding scheduling of the PDCCH according to the status 011 of the carrier indicator bit. It is the PDSCH on the third non-main carrier, and the PDCCH occupies 2 or 3 symbols, then the UE can know whether the value of the PCFICH is 2 or 3 by detecting the value of the PCFICH in the value of 2 or 3, Therefore, it is determined that the data start position of the PDSCH on the third non-main carrier is the third symbol or the fourth symbol, so that the UE can start to extract the PDSCH from the third symbol or the fourth symbol. For the situation of increasing the number of bits of the carrier indicator bit, there are more states of the carrier indicator bit that can be used, and the corresponding relationship between the state of the carrier indicator bit and the value of the PCFICH can be many-to-one or It can be one-to-one or one-to-many, and the specific corresponding relationship can be determined according to the number of carriers to be indicated.

In a preferred case, when the state of the carrier indicator bit is sufficient, the one-to-one correspondence between the state of the carrier indicator bit and the value of the PCFICH can be preferentially used, and when it is not enough, the carrier indicator bit can be used There is no one-to-one correspondence between the state and the value of the PCFICH, or a way of increasing the number of carrier indicator bits.

In this embodiment, the state of the carrier indication bit of the PDCCH is used to indicate the value of the PCFICH on the non-main carrier where the scheduled PDSCH corresponding to the PDCCH is located. Even if the PDCCH is carried on other carriers, the UE can also use the carrier indication on the PDCCH The bit knows the PCIFICH on the non-main carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's value verification of the PCFICH, and then demodulating the PDSCH from the correct starting position information of the PDSCH, The false detection rate of the PDSCH is effectively reduced, and subsequent unnecessary feedback retransmissions are avoided.

In another embodiment of the signaling processing method of the present invention, when the value of the PCFICH acquired according to the state of the carrier indicator bit in the PDCCH corresponding to the non-main carrier is one, the method may further include: The value of one PCFICH determines the data start position information of the PDSCH on the non-main carrier corresponding to the PDCCH. When there are multiple PCFICH values obtained according to the state of the carrier indicator bit in the PDCCH corresponding to the non-main carrier, the method may further include: detecting and determining the PCFICH from the obtained multiple PCFICH possible values value, and determine the data start position information of the PDSCH corresponding to the non-principal carrier according to the detected value of the PCFICH.

Assuming that the number of carrier indicator bits is 3, for the case where the UE acquires a PCFICH value, that is, the state of the carrier indicator bit of the PDCCH can accurately indicate the value of each PCFICH on the non-main carrier. For example, the UE is notified to monitor 3 carriers, the status of the carrier indicator bit is 0~1 to indicate the main carrier C1, the status of the carrier indicator bit is 2~4 to indicate the non-main carrier C2, and the status of these 3 carrier indicator bits is used to indicate the PCFICH There are three kinds of values of the value; the states 5-7 of the carrier indication bits indicate the non-main carrier C3, and the states of the three carrier indication bits are used to indicate the three values of the PCFICH values. In this case, when the UE knows the state of the carrier indicator bit 011, it can determine that the value of the PCFICH on the non-main carrier C2 is 2, so that the UE can determine that the value of the PCFICH on the non-main carrier C2 from the third symbol position is PDSCH, so that the PDSCH can be demodulated from the correct starting position.

For another example, the number of carriers that the UE needs to monitor is 3 and assuming that there is 1 main carrier, the status of the carrier indicator bit is 000 to indicate the main carrier, and the status of the carrier indicator bit is 001~100 to indicate a non-main carrier, and the four carriers Among the states of indication bits 001-100, 001 and 010 can be used to indicate that the value of the corresponding PCFICH is 1, 011 can be used to indicate the value of the corresponding PCFICH is 2, and 100 can be used to indicate the value of the corresponding PCFICH If it is 3, the states 101-111 of the carrier indicator bits are used to indicate another non-main carrier, and the states 101-111 of these three carrier indicator bits can be used to indicate the value of the corresponding PCFICH, that is, to indicate the non-main carrier There is a one-to-one or many-to-one correspondence between the state of the carrier indicator bit and the value of the PCFICH of the non-main carrier. Therefore, the UE can determine the corresponding PCFICH according to the carrier indicator bit, so as to determine which symbol position on the non-main carrier is the PDSCH, so as to demodulate the PDSCH from the correct starting position.

For another example, the carrier indicator bit 000 indicates the main carrier, the carrier indicator bit status 001-100 indicates a non-main carrier, and among the four carrier indicator bit statuses 001-100, 001 and 010 can indicate the value of the corresponding PCFICH 1, 011 can indicate that the value of the corresponding PCFICH is 2, 100 can be used for the value of the corresponding PCFICH 3, the state of the carrier indicator bit 101~111 indicates another non-main carrier, and the three carrier indicator bits The states 101 to 111 of each can indicate the value of the corresponding PCFICH, that is, there is a one-to-one or many-to-one correspondence between the state of the carrier indicator bit used to indicate the non-main carrier and the value of the PCFICH of the non-main carrier . Therefore, the UE can determine the corresponding PCFICH according to the carrier indicator bit, so as to determine which symbol position on the non-main carrier is the PDSCH, so as to demodulate the PDSCH from the correct starting position.

It can be understood that the allocation of carrier indicator bits is not limited to the above-mentioned forms, and those skilled in the art may allocate the main carrier and the non-main carrier arbitrarily under the condition that the above conditions are met.

In the above embodiment of the signaling processing method of the present invention, the carrier indication bit of the PDCCH is used to indicate the value of the PCFICH on the non-main carrier where the scheduled PDSCH corresponding to the PDCCH is located. Even if the PDCCH is carried on other carriers, the UE can also pass the PDCCH The carrier indication bit on the PDSCH can know the PCIFICH on the non-primary carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's value verification of the PCFICH, and then the PDSCH can be checked from the correct starting position information of the PDSCH. Demodulation is performed to effectively reduce the false detection rate of the PDSCH and avoid subsequent unnecessary feedback retransmission.

FIG. 6 is a flowchart of another signaling processing method provided by an embodiment of the present invention. As shown in FIG. 6, the method of this embodiment may include:

Step 601: Receive at least one PDCCH respectively corresponding to at least one carrier and sent by a base station.

There is a corresponding relationship between the state of the carrier indicator bit in each PDCCH of the at least one PDCCH and the value of the physical control format indicator channel PCFICH on the carrier corresponding to each PDCCH;

Step 602: Obtain the value of the PCFICH on the carrier corresponding to each PDCCH according to the state of the carrier indicator bit in each PDCCH of the at least one PDCCH.

In this embodiment, the carrier indication bit of the PDCCH is used to indicate the value of the PCFICH of the carrier where the PDSCH corresponding to the PDCCH is located. In the case of no main carrier, the indication granularity can be increased, that is, one carrier indication bit is used to indicate the value of the PCFICH. A subset of the value set can also indicate the value of PCFICH by increasing the number of carrier indicator bits. Therefore, even if the PDCCH is carried on another carrier, the UE can also know its value through the carrier indicator bit on the PDCCH. PCIFICH on the carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's value detection of the PCFICH, and then demodulating the PDSCH from the correct starting position information of the PDSCH, effectively reducing the error of the PDSCH The detection rate avoids subsequent unnecessary feedback retransmissions.

In another embodiment of the signaling processing method of the present invention, when the value of the PCFICH obtained according to the state of the carrier indicator bit in each PDCCH of the at least one carrier is one, the method may further include: according to The obtained value of one PCFICH determines the data start position information of the PDSCH on the carrier corresponding to each PDCCH. When there are multiple PCFICH values obtained according to the state of the carrier indicator bit in each PDCCH of the at least one carrier, the method may further include: detecting and determining from the obtained multiple PCFICH possible values The value of the PCFICH, and determine the data start position information of the PDSCH on the carrier corresponding to each PDCCH according to the value of the PCFICH determined by detection.

Specifically, since the primary carrier is not defined in this embodiment, the PDCCH can be flexibly placed on one or several carriers, but which carrier will carry the PDCCH is not fixed, and it cannot be determined which carrier the PCFICH The value can be implicitly checked by the PDCCH without indication. Therefore, if the value of the PCFICH on each carrier is to be accurately indicated, at least 3 carrier indication bits need to be reserved for each carrier.

Assuming that the number of carriers that the UE needs to monitor is 5, and the carrier indication bits of the PDCCH are 4 bits, 15 states of the carrier indication bits need to be reserved, while the states of the carrier indication bits of the PDCCH are 16, which is more than three times the The number of carriers of at least one carrier, that is, 5 carriers. At this time, the state of the carrier indicator bit of the PDCCH can accurately indicate each value of the value of the PCFICH on each carrier. In this case, a The possible scheme is that the states 0-2 of the carrier indication bits indicate the carrier C1 and are used to indicate the values of the three PCFICHs; the states 3-5 of the carrier indication bits indicate the carrier C2 and are used to indicate the values of the three PCFICHs; the carrier indication bits Bit statuses 6-8 indicate carrier C3 and are used to indicate the values of the three PCFICHs of carrier C3; statuses of carrier indication bits 9-11 indicate carrier C4 and are used to indicate the values of the three PCFICHs of carrier C4; carrier indication Bit states 12 to 15 indicate the carrier C5, and are used to indicate the values of the three PCFICHs of the carrier C5, wherein the states 12 and 13 of the carrier indication bit can indicate that the value of the PCFICH of the carrier C5 is 1, and the state of the carrier indication bit is 14 The value of the PCFICH of the carrier C5 may be indicated to be 2, and the state of the carrier indication bit 15 may indicate the value of the PCFICH of the carrier C5 to be 3. Therefore, in this case, there is a one-to-one or many-to-one correspondence between the carrier indicator bit and the value of the PCFICH of the at least one carrier, such as 12 and 13 in this embodiment and the value of the PCFICH There is a many-to-one correspondence between the values, that is, the corresponding relationship between the states of the two carrier indicator bits and the value of a PCFICH, such as the state of the rest of the carrier indicator bits in this embodiment, and the value of the PCFICH is a one-to-one correspondence.

Assuming that the number of carriers that the UE needs to monitor is 3, and the carrier indicator bits of the PDCCH are 3 bits, the status of 9 carrier indicator bits needs to be reserved. At this time, the status of the carrier indicator bits of the PDCCH cannot accurately indicate each carrier In this case, a possible scheme is that the status 0~2 of the carrier indicator bit indicates the carrier C1, and is used to indicate the values of the three PCFICH; the carrier indicator bit The state 3~5 of the carrier indication bit indicates the carrier C2, and is used to indicate the values of the three PCFICH; the state 6~7 of the carrier indication bit indicates the carrier C3, and the state 6 of the carrier indication bit indicates that the value of the PCFICH is 1, and the value of the carrier indication bit is 1. State 7 indicates that the value of the PCFICH is 2 or 3, and the specific value of the PCFICH is 2 or 3, which is detected by the UE. Therefore, in this case, there is a one-to-many correspondence between the state of at least one of the carrier indicator bits and the value of the PCFICH, for example, the state 7 of the carrier indicator bit and the value 2 or 3 of the PCFICH are One-to-two correspondence.

In another embodiment of the signaling processing method of the present invention, the above step 602 may include: acquiring the PCFICH on the carrier where the PDCCH carried by the cross-carrier is obtained according to the state of the carrier indicator bit in the PDCCH carried by the cross-carrier Value; according to the state of the carrier indicator bit of the PDCCH carried by the cross-carrier, determine the value of the PCFICH on the carrier where the PDCCH carried by the cross-carrier is located and the PCFICH on the carrier where the PDSCH corresponding to the PDCCH carried by the cross-carrier is located Whether the values are the same, if they are the same, the value of the PCFICH on the carrier where the PDSCH corresponding to the PDCCH carried by the cross-carrier is located is equal to the value of the PCFICH on the carrier where the PDCCH carried by the cross-carrier is located, otherwise, in The value of the PCFICH on the carrier where the PDSCH corresponding to the PDCCH carried by the cross-carrier is detected from among the possible values of the PCFICH other than the value of the PCFICH on the carrier where the PDCCH carried by the cross-carrier is located.

Specifically, this embodiment does not impose any restrictions on the value of the PCFICH transmitted by the base station, but imposes some restrictions on the indication of the value of the PCFICH to save the state of the carrier indication bit, such as indicating that the carrier that does not carry the PDCCH of a UE Whether the value of the PCFICH is equal to the value of the PCFICH on the carrier carrying the PDCCH.

In this embodiment, two carriers are taken as an example for description. The PDSCH of carrier C2 is indicated by the PDCCH carried across carriers, that is, the PDCCH corresponding to the PDSCH on C2 is carried on carrier C1, and if the PDCCH carried on carrier C1 is detected, then the PDCCH on carrier C1 can be known. The value of PCFICH. For example, the following solutions can be adopted.

1) Apply the carrier indication bit of the PDCCH corresponding to the PDSCH of the carrier C2 carried on the carrier C1 to indicate whether the value of the PCFICH on the carrier C2 is equal to the value of the known PCFICH on the carrier C1, that is, if the carrier C1 When the value of the PCFICH on the carrier C1 is 2, and the carrier indicator bit of the PDCCH corresponding to the PDSCH carried on the carrier C1 and the PDSCH on the carrier C2 indicates that the two are equal, then the value of the PCFICH on the carrier C2 is also 2; otherwise if When the two are not equal, the possible value of the PCFICH on the carrier C2 is 1 or 3, and whether the value of the PCFICH is 1 or 3 can be detected by the UE itself;

When the value of PCFICH on carrier C1 is 2, and the carrier indication bit of the PDCCH corresponding to carrier C2 indicates that the value of PCFICH on carrier C1 is not equal to the value of PCFICH on carrier C2, but the UE detects that the value of PCFICH on carrier C2 The value of the PCFICH is equal, that is, the value of the PCFICH on the carrier C2 is detected to be 2, then the UE can adopt two processing methods:

a) When the UE knows that the value of the PCFICH on the carrier C1 is 2, and the value of the PCFICH on the indicated carrier C2 is not equal to the value of the PCFICH on the carrier C1, then the UE only selects the value of the PCFICH at this time Detection is performed in a set of 1 and 3, compared to the case where the UE needs to detect all three PCFICH values, since the possible values of PCFICH values that may need to be detected are reduced, the detection accuracy rate can be improved.

b) The UE detects that the value of the PCFICH of C2 is equal to that of C1, but the state of the carrier indicator bit of the PDCCH corresponding to carrier C2 indicates that the value of the PCFICH of carrier C1 is not equal to the value of the PCFICH of carrier C2, Then the UE determines that the verification is wrong, and the UE can give up the data packet, and then will not feed back ACK/NACK to the base station, and the base station can think that the UE missed the PDCCH corresponding to the data packet, so as to reschedule the same data packet, It does not cause the influence of subsequent feedback and retransmission combination caused by the error detection of the PCFICH value.

2) Indicate that the values of PCFICH on the carrier that does not carry the PDCCH of a certain UE are some subsets of the three values. When the state of the carrier indicator bit is sufficient, the carrier indicator bit can indicate the PCFICH on each carrier. A specific value among the three values of the value, and a one-to-one or many-to-one correspondence between the state of the carrier indicator bit and the value of the PCFICH of the at least one carrier is used to indicate; when the carrier indicator bit When the states of the carrier indicator bits are not enough, a one-to-many correspondence between the state of at least one carrier indicator bit and the value of the PCFICH of the at least one carrier may be used for indication. For example, the state 0 of the carrier indicator bit can be used to indicate that the value of the PCFICH is 1, and the state of the carrier indicator bit 1 can indicate that the value of the PCFICH is one of 2 and 3, and the UE can detect in 2 and 3 by itself. Therefore, in this embodiment, the states of the two carrier indicator bits can be used to indicate whether the values of the PCFICH are equal or not, or to indicate some subsets. Therefore, the state of the carrier indicator bits is 2n, where n is the number of carriers, which can be It can be seen that when the number of carrier indication bits is 3 bits, that is, 8, a maximum of 4 carriers can be supported, and if it exceeds, the indication manner described in the above-mentioned embodiment can be used for indication.

In the above embodiments of the present invention, the state of the carrier indication bit of the PDCCH is used to indicate the value of the PCFICH of the carrier where the PDSCH corresponding to the PDCCH is scheduled. The state of the bit indicates a subset of the PCFICH value set, and the value of the PCFICH can be indicated by increasing the number of carrier indication bits. Therefore, even if the PDCCH is carried on another carrier, the UE can also pass the PDCCH on the PDCCH. The carrier indicator bit to know the PCIFICH on the carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's value detection of the PCFICH, and then demodulating the PDSCH from the correct starting position information of the PDSCH, The false detection rate of the PDSCH is effectively reduced, and subsequent unnecessary feedback retransmissions are avoided.

FIG. 7 is a flowchart of another signaling processing method provided by an embodiment of the present invention. As shown in FIG. 7, the method of this embodiment may include:

Step 701. Obtain a PDSCH from a region in a subframe except the control region.

The control region is the largest region capable of carrying the PDCCH in one subframe.

The starting location of the PDSCH is in an area other than the control area, and the actual location may be known to the UE and the base station.

In the LTE system, a subframe has 14 symbols, among which, the PDCCH occupies at most the first 3 or 4 symbols, and the PDSCH mapping in the LTE network is mapped according to the time sequence of the symbols, so that when there is a cross-carrier indication, The data header of the PDSCH of the carrier that does not carry the PDCCH of a certain UE may determine the wrong data start position due to the wrong detection of the value of the PCFICH, thereby causing subsequent decoding errors. Therefore, in this embodiment, the UE may adopt a new acquisition method to acquire the PDSCH, that is, first acquire the PDSCH from an area other than the control area. The so-called control region is the region where the PDCCH may be placed. In this embodiment, the control region occupies the first 3 symbols of the subframe as an example, and the control region occupies the first 4 symbols of the subframe, and so on. In the first 3 symbols of the control area, the PDCCH may only occupy the first 2 symbols, but when the UE acquires the PDSCH, it acquires the PDSCH from the area starting from the 3rd symbol, that is, from the 4th symbol, that is, the PDCCH is first The area that may be occupied is vacated, and the data that must be placed in the PDSCH area is acquired.

In another embodiment of the signaling processing method of the present invention, obtaining the PDSCH from the area of the subframe except the control area in step 701 may include: applying a preset mapping order, removing the control area from the subframe Acquire PDSCH in the outside area.

The preset mapping order can be obtained through prior agreement between the UE and the base station or through signaling notification.

Step 702: In the control region, acquire the PDSCH in the reverse time order of the symbol arrangement in the subframe.

In the control region, that is, in the first three regions where the PDCCH may be placed in this embodiment, the PDSCH can be acquired in the reverse time order of the symbol arrangement in the subframe. The so-called opposite time sequence to the symbol arrangement in the subframe means that the PDSCH on the third symbol in the subframe is obtained first, and then the PDSCH on the second symbol is obtained.

For example, in this embodiment, the remaining PDSCHs may be acquired sequentially from back to front. When the value of the PCFICH is 1 or 2, because the PDCCH occupies 1 or 2 symbols at this time, there are 1 or 2 symbols that can be used to place the PDSCH. For example, when the value of PCFICH is 1, that is, the PDCCH only occupies the first symbol in the control region, then when obtaining the remaining PDSCH, you can first obtain the third symbol in the control region, and then obtain the symbols in the control region. 2nd symbol.

The UE can decode the PDSCH according to the acquisition sequence of step 701 and step 702 .

The advantage of the above method is that for the PDSCH outside the control area, that is, the area after the third symbol or the fourth symbol, the UE can find the data starting point and mapping order according to a certain mapping rule, and for the PDSCH in the control area can use Mapping in reverse order can reduce the impact of PCFICH value detection errors on UE mapping PDSCH. For example, if the value of PCFICH transmitted by the base station is 2, but the UE detects it as 1 by mistake, then the UE can correctly detect the PDSCH and the control region outside the control region (the first 3 symbols or the first 4 symbols in the subframe) The PDSCH on the 3rd symbol or the 4th symbol in the subframe only misdetects the data on the 2nd symbol in the control region of the subframe as PDSCH, that is, the data on the 2nd symbol is interfered and received more A PDSCH; similarly, if the value of the PCFICH transmitted by the base station is 1, but the UE misdetects it as 2, the UE can still correctly detect the PDSCH outside the control area and the third or fourth symbol in the control area The PDSCH on the PDSCH, there is no interference at this time, but the PDSCH on the second symbol in the control region is under-received, and it will not have a great impact on the decoding of the PDSCH.

In the signaling processing method of this embodiment, the subframe is divided into the control area and the area other than the control area, and the PDSCH is obtained from the control area and the area other than the control area according to the preset mapping order, thereby reducing the The influence of the misdetection of the PCFICH value on the demodulation of the PDSCH improves the system performance.

FIG. 8 is a flowchart of yet another signaling processing method provided by an embodiment of the present invention. As shown in FIG. 8, the method of this embodiment may include:

Step 801: Map the PDSCH to areas in the subframe other than the control area.

The control region is the largest region capable of carrying the physical downlink control channel PDCCH in one subframe.

The starting location of the PDSCH is in an area other than the control area, and the actual location may be known to the UE and the base station.

In the LTE system, a subframe has 14 symbols, among which, the PDCCH occupies at most the first 3 or 4 symbols, and the PDSCH mapping in the LTE network is mapped according to the time sequence of the symbols, so that when there is a cross-carrier indication, The data header of the PDSCH of the carrier that does not carry the PDCCH of a certain UE may determine the wrong data start position due to the wrong detection of the value of the PCFICH, thereby causing subsequent decoding errors. Therefore, in this embodiment, the base station, such as the eNodeB, can generate the PDSCH in a new mapping manner, that is, first map the PDSCH to areas other than the control area. The so-called control region is the region where the PDCCH may be placed. In this embodiment, the control region occupies the first 3 symbols of the subframe as an example, and the control region occupies the first 4 symbols of the subframe, and so on. In the first 3 symbols of the control area, the PDCCH may only occupy the first 2 symbols, but when the base station maps the PDSCH, it maps the PDSCH from the area starting from the 3rd symbol, that is, from the 4th symbol, that is, the PDCCH is first mapped The possibly occupied area is vacated, and the PDSCH is mapped in the area that must be used to place the PDSCH.

Step 802: In the control region, map the PDSCH in reverse time sequence to that of the symbol arrangement in the subframe.

In the control region, that is, in the first three regions where the PDCCH may be placed in this embodiment, the reverse time sequence of the symbol arrangement in the subframe can be used to map the PDSCH. The so-called opposite time sequence to the arrangement of symbols in the subframe means that the PDSCH on the third symbol in the subframe is first mapped, and then the PDSCH on the second symbol is mapped.

For example, in this embodiment, the base station may map the remaining PDSCHs sequentially from back to front. When the value of the PCFICH is 1 or 2, since the PDCCH occupies 1 or 2 symbols at this time, it is also possible to map the PDSCH on 1 or 2 symbols in the control region. For example, when the value of PCFICH is 1, that is, the PDCCH only occupies the first symbol in the control region, then when mapping the remaining PDSCH, you can first map the PDSCH on the third symbol in the control region, and then in the control region The second symbol in is mapped to PDSCH.

It should be noted that there may be no sequence between the above step 801 and step 802 .

In another embodiment of the signaling processing method of the present invention, the step 801 of mapping the PDSCH to the regions other than the control region in the subframe may include: applying a preset mapping order, and mapping the PDSCH to the regions other than the control region in the subframe The PDSCH is mapped in the region.

The advantage of the above method is that, for the PDSCH outside the control area, that is, the area after the third symbol or the fourth symbol, the base station can map the PDSCH according to a certain mapping rule, and the PDSCH in the control area can be mapped in reverse order, so that It can enable UE to find the data starting point and mapping sequence according to a certain mapping rule when mapping and obtaining PDSCH, thereby reducing the impact of PCFICH value detection error on UE mapping PDSCH. For example, if the value of PCFICH transmitted by the base station is 2, but the UE detects it as 1 by mistake, then the UE can correctly detect the PDSCH and the control region outside the control region (the first 3 symbols or the first 4 symbols in the subframe) The PDSCH on the 3rd symbol or the 4th symbol in the subframe only misdetects the data on the 2nd symbol in the control region of the subframe as PDSCH, that is, the data on the 2nd symbol is interfered and received more A PDSCH; similarly, if the value of the PCFICH transmitted by the base station is 1, but the UE misdetects it as 2, the UE can still correctly detect the PDSCH outside the control area and the third or fourth symbol in the control area The PDSCH on the PDSCH, there is no interference at this time, but the PDSCH on the second symbol in the control region is under-received, and it will not have a great impact on the decoding of the PDSCH.

In the signaling processing method of this embodiment, the subframe is divided into the control area and areas other than the control area, and by adopting a new mapping method, from the control area and areas other than the control area according to the preset mapping order Mapping the PDSCH can reduce the influence of subsequent UEs on the demodulation of the PDSCH due to misdetection of the value of the PCFICH, thereby improving system performance.

9 is a schematic structural diagram of a base station provided by an embodiment of the present invention. As shown in FIG. At least one physical downlink control channel PDCCH corresponding to at least one carrier, the state of the carrier indicator bit in the PDCCH corresponding to the non-main carrier in the at least one carrier and the physical control format indicator channel PCFICH on the non-main carrier There is a corresponding relationship between the values; the first sending module 12 is configured to send the at least one PDCCH to the user equipment, for the user equipment to acquire the corresponding Describe the value of PCFICH on the non-main carrier.

The principle of the base station in this embodiment is the same as that of the embodiment of the signaling processing method shown in FIG. 3 , and details are not repeated here.

In another embodiment of the base station of the present invention, when 2 ^N is greater than or equal to 3 times the number of carriers of the non-main carrier, where N is the number of bits indicating the carrier, the corresponding relationship may include: There is a one-to-one correspondence between the state of the carrier indicator bit of the PDCCH corresponding to each non-main carrier in the non-main carrier and the value of the PCFICH on each non-main carrier, or a many-to-one correspondence . When 2 ^N is less than 3 times the number of carriers of the non-main carrier, where N is the number of bits indicated by the carrier, the correspondence may include: among the non-main carriers, there is at least one non-main carrier There is a one-to-many correspondence between the state of the corresponding carrier indicator bit in the PDCCH and the value of the PCFICH on the one non-main carrier.

The base station in the above-mentioned embodiments of the present invention uses the state of the carrier indication bit of the PDCCH to indicate the value of the PCFICH on the non-principal carrier where the PDSCH corresponding to the PDCCH is located. Even if the PDCCH is carried on other carriers, the UE can pass the PDCCH The carrier indication bit on the PDSCH can know the PCIFICH on the non-primary carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's value verification of the PCFICH, and then the PDSCH can be checked from the correct starting position information of the PDSCH. Demodulation is performed to effectively reduce the false detection rate of the PDSCH and avoid subsequent unnecessary feedback retransmission.

FIG. 10 is a schematic structural diagram of a user equipment provided by an embodiment of the present invention. As shown in FIG. 10 , the user equipment of the present invention may include: a first receiving module 13 and a first acquiring module 14 . The first receiving module 13 is configured to receive at least one physical downlink control channel PDCCH corresponding to at least one carrier respectively sent by the base station, and the state of the carrier indication bit in the PDCCH corresponding to the non-main carrier in the at least one carrier is the same as the state of the There is a corresponding relationship between the values of the physical control format indicator channel PCFICH on the non-main carrier; the first acquisition module 14 is used to obtain the information on the non-main carrier according to the carrier indication bit status in the PDCCH corresponding to the non-main carrier. The value of PCFICH.

The principle of the user equipment in this embodiment is the same as that of the embodiment of the signaling processing method shown in FIG. 5 , which will not be repeated here.

FIG. 11 is a schematic structural diagram of another user equipment provided by an embodiment of the present invention. As shown in FIG. 11 , on the basis of the user equipment described in FIG. 10 , the user equipment in this embodiment may further include: a first processing module 31 The first processing module 31 is used for when the value of the PCFICH obtained by the first obtaining module 14 according to the state of the carrier indicator bit in the PDCCH corresponding to the non-main carrier is one, according to the value of a PCFICH obtained Determine the data start position information of the PDSCH on the non-primary carrier corresponding to the PDCCH; when the first acquisition module 14 obtains the value of the PCFICH according to the state of the carrier indicator bit in the PDCCH corresponding to the non-principal carrier If there are multiple values, detect and determine the value of the PCFICH from the acquired possible values of the multiple PCFICHs, and determine the data start position information of the PDSCH corresponding to the non-main carrier according to the detected and determined values of the PCFICH.

In the above-mentioned user equipment embodiment of the present invention, the state of the carrier indication bit of the PDCCH is used to indicate the value of the PCFICH on the non-main carrier where the scheduled PDSCH corresponding to the PDCCH is located. Even if the PDCCH is carried on other carriers, the UE can also pass the PDCCH The carrier indication bit on the PDSCH can know the PCIFICH on the non-primary carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's value verification of the PCFICH, and then the PDSCH can be checked from the correct starting position information of the PDSCH. Demodulation is performed to effectively reduce the false detection rate of the PDSCH and avoid subsequent unnecessary feedback retransmission.

Correspondingly, an embodiment of the signaling processing system of the present invention may include the base station described in the foregoing embodiments. In the system of this embodiment, the state of the carrier indication bit of the PDCCH is used to indicate the value of the PCFICH on the non-main carrier where the scheduled PDSCH corresponding to the PDCCH is located. Even if the PDCCH is carried on other carriers, the UE can pass the PDCCH. The carrier indicator bit knows the PCIFICH on the non-main carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's value verification of the PCFICH, and then can solve the PDSCH from the correct starting position information of the PDSCH This effectively reduces the false detection rate of the PDSCH and avoids subsequent unnecessary feedback retransmissions.

FIG. 12 is a schematic structural diagram of another base station provided by an embodiment of the present invention. As shown in FIG. 12 , the base station in this embodiment may include: a second generating module 15 and a second sending module 16 . Wherein, the second generating module 15 is configured to generate at least one physical downlink control channel PDCCH respectively corresponding to at least one carrier, and the state of the carrier indicator bit in each PDCCH in the at least one PDCCH is the same as that of each PDCCH corresponding to There is a corresponding relationship between the values of the Physical Control Format Indicator Channel PCFICH on the carrier; the second sending module 16 is configured to send the at least one PDCCH to the user equipment, for the user equipment to use each of the at least one PDCCH The state of the carrier indicator bit in each PDCCH acquires the value of the PCFICH on the carrier corresponding to each PDCCH.

The principle of the base station in this embodiment is the same as that of the embodiment of the signaling processing method shown in FIG. 4 , and will not be described again.

In yet another embodiment of the base station of the present invention, when the number of 2 ^N is greater than or equal to 3 times the number of carriers of the at least one carrier, where N is the number of bits indicated by the carrier, the corresponding relationship may include: There is a one-to-one correspondence or a many-to-one correspondence between the state of the carrier indicator bit of the PDCCH corresponding to each of the at least one carrier and the value of the PCFICH on each of the carriers. When 2 ^N is less than 3 times the number of carriers of the at least one carrier, where N is the number of bits indicated by the carrier, the correspondence may include: at least one of the at least one carrier corresponds to There is a one-to-many correspondence between the state of the carrier indicator bit in the PDCCH and the value of the PCFICH on the one carrier. The corresponding relationship may also include: the state of the carrier indication bit in the PDCCH carried by the cross-carrier indicates that the value of the PCFICH on the carrier where the PDCCH carried by the cross-carrier is located and the value of the PDSCH corresponding to the PDCCH carried by the cross-carrier is located The values of the PCFICH on different carriers are the same or different.

The base station of the above-mentioned embodiment uses the carrier indication bit of the PDCCH to indicate the value of the PCFICH of the carrier where the scheduled PDSCH corresponding to the PDCCH is located. A subset of the value set of PCFICH can indicate the value of PCFICH by increasing the number of carrier indicator bits. Therefore, even if the PDCCH is carried on other carriers, the UE can also use the carrier indicator bits on the PDCCH Know the PCIFICH on the carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's value detection of the PCFICH, and then demodulating the PDSCH from the correct starting position information of the PDSCH, effectively reducing the PDSCH The false detection rate is high, which avoids subsequent unnecessary feedback retransmissions.

Correspondingly, an embodiment of the signaling processing system of the present invention may include the base station described in the foregoing embodiments. In the system of this embodiment, the carrier indication bit of the PDCCH is used to indicate the value of the PCFICH of the carrier where the PDSCH corresponding to the PDCCH is scheduled. A subset of the value set of PCFICH can indicate the value of PCFICH by increasing the number of carrier indicator bits. Therefore, even if the PDCCH is carried on other carriers, the UE can also use the carrier indicator bits on the PDCCH Know the PCIFICH on the carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's value detection of the PCFICH, and then demodulating the PDSCH from the correct starting position information of the PDSCH, effectively reducing the PDSCH The false detection rate is high, which avoids subsequent unnecessary feedback retransmissions.

FIG. 13 is a schematic structural diagram of another user equipment provided by an embodiment of the present invention. As shown in FIG. 13 , the user equipment in this embodiment may include: a second receiving module 17 and a second acquiring module 18 . Wherein, the second receiving module 17 is configured to receive at least one physical downlink control channel PDCCH respectively corresponding to at least one carrier sent by the base station, and the state of the carrier indicator bit in each PDCCH of the at least one PDCCH is the same as that of each There is a corresponding relationship between the values of the physical control format indication channel PCFICH on the carrier corresponding to the PDCCH; the second acquisition module 18 is used to obtain the carrier indication bit according to the state of each PDCCH in the at least one PDCCH and the The value of the PCFICH on the carrier corresponding to each PDCCH.

Fig. 14 is a schematic structural diagram of another user equipment provided by an embodiment of the present invention. As shown in Fig. 14, the user equipment in this embodiment may further include: a second processing module on the basis of the user equipment shown in Fig. 13 32. The second processing module 32 is configured to: when the value of the PCFICH acquired by the second acquiring module 18 according to the state of the carrier indicator bit in each PDCCH in the at least one carrier is one, according to the value of the acquired PCFICH The value determines the data start position information of the PDSCH on the carrier corresponding to each PDCCH; when the second acquisition module 18 obtains the PCFICH according to the state of the carrier indicator bit in each PDCCH in the at least one carrier When there are multiple values, detect and determine the value of the PCFICH from the acquired possible values of the multiple PCFICHs, and determine the data of the PDSCH on the carrier corresponding to each PDCCH according to the value of the detected PCFICH initial location information; or,

It is used to obtain the value of the PCFICH on the carrier where the PDCCH carried by the cross-carrier is located according to the state of the carrier indicator bit in the PDCCH carried by the cross-carrier; determine according to the state of the carrier indicator bit of the PDCCH carried by the cross-carrier Whether the value of the PCFICH on the carrier where the PDCCH carried by the cross-carrier is the same as the value of the PCFICH on the carrier where the PDSCH corresponding to the PDCCH carried by the cross-carrier is located, and if they are the same, the PDCCH carried by the cross-carrier The value of the PCFICH on the carrier where the corresponding PDSCH is located is equal to the value of the PCFICH on the carrier where the PDCCH carried by the cross-carrier is located, otherwise, the value of the PCFICH on the carrier where the PDCCH carried by the cross-carrier is located Among other possible values of the PCFICH, the value of the PCFICH on the carrier where the PDSCH corresponding to the PDCCH carried by the cross-carrier is detected is obtained.

The user equipment in the above-mentioned embodiments of the present invention uses the state of the carrier indication bit of the PDCCH to indicate the value of the PCFICH of the carrier where the PDSCH corresponding to the PDCCH is located. When there is no primary carrier, the indication granularity can be increased, that is, the The status of a carrier indicator bit indicates a subset of the PCFICH value set, and the value of the PCFICH can be indicated by increasing the number of carrier indicator bits. Therefore, even if the PDCCH is carried on another carrier, the UE can pass The carrier indication bit on the PDCCH knows the PCIFICH on the carrier corresponding to the scheduled PDSCH, thereby improving the accuracy of the UE's detection of the value of the PCFICH, and then the PDSCH can be placed from the correct starting position information of the PDSCH. The demodulation effectively reduces the false detection rate of PDSCH and avoids subsequent unnecessary feedback retransmission.

FIG. 15 is a schematic structural diagram of another user equipment provided by an embodiment of the present invention. As shown in FIG. 15 , the user equipment in this embodiment may include: a third obtaining module 21 and a fourth obtaining module 22 . The third obtaining module 21 is used to obtain the PDSCH from the area in the subframe except the control area, and the control area is the largest area capable of carrying the PDCCH in a subframe; the fourth obtaining module 22 is used to obtain the PDSCH in the control area , acquiring the PDSCH in reverse time sequence to that of the arrangement of symbols in the subframe.

The implementation principle of the user equipment in this embodiment is the same as that of the embodiment of the signaling processing method shown in FIG. 7 , and will not be described again.

The user equipment in this embodiment divides the subframe into the control area and areas other than the control area, and obtains the PDSCH from the control area and the areas other than the control area according to the preset mapping order, so that the PCFICH can be reduced. The influence of the error detection of the value on the demodulation of the PDSCH improves the system performance.

FIG. 16 is a schematic structural diagram of another base station provided by an embodiment of the present invention. As shown in FIG. 16 , the base station in this embodiment may include: a first mapping module 23 and a second mapping module 24 . The first mapping module 23 is used to map the PDSCH in the area except the control area in the subframe, and the control area is the largest area capable of carrying the PDCCH in a subframe; the second mapping module 24 is used to map the PDSCH in the control area , the PDSCH is mapped using the reverse time order of the symbol arrangement in the subframe.

The implementation principle of the base station in this embodiment is the same as that of the embodiment of the signaling processing method shown in FIG. 8 , and details are not repeated here.

The base station in this embodiment divides the subframe into the control region and regions other than the control region, and uses a new mapping method to map the PDSCH from the control region and regions other than the control region according to a preset mapping sequence, Therefore, it is possible to reduce the influence of subsequent UEs on the demodulation of the PDSCH due to misdetection of the value of the PCFICH, and improve system performance.

Correspondingly, an embodiment of the signaling processing system of the present invention may include the base station described in the foregoing embodiments. In the system of this embodiment, the subframe is divided into the control region and regions other than the control region, and by adopting a new mapping method, the PDSCH is mapped from the control region and regions other than the control region according to a preset mapping sequence, Therefore, it is possible to reduce the influence of subsequent UEs on the demodulation of the PDSCH due to misdetection of the value of the PCFICH, and improve system performance.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it still Modifications or equivalent replacements can be made to the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims (21)

1. A method for signaling, comprising:

generating at least one Physical Downlink Control Channel (PDCCH) corresponding to at least one carrier, wherein a corresponding relation exists between the state of a carrier indication bit in the PDCCH corresponding to a non-primary carrier in the at least one carrier and the value of a Physical Control Format Indication Channel (PCFICH) on the non-primary carrier;

and sending the at least one PDCCH to user equipment, so that the user equipment can obtain the value of the PCFICH on the non-primary carrier according to the state of a carrier indication bit in the PDCCH corresponding to the non-primary carrier.

2. The signaling processing method according to claim 1, characterized in that when 2, 2^NWhen the number of carriers of the non-main carrier is greater than or equal to 3 times, where N is the number of bits of the carrier indicator bit, the corresponding relationship includes:

the state of the carrier indicator bit of the PDCCH corresponding to each non-primary carrier in the non-primary carriers and the value of the PCFICH on each non-primary carrier are in one-to-one correspondence, or in many-to-one correspondence;

when 2 is in^NWhen the number of carriers of the non-main carrier is less than 3 times, the corresponding relationship includes:

in the non-primary carriers, the state of a carrier indication bit in the PDCCH corresponding to at least one non-primary carrier and the value of the PCFICH on the non-primary carrier are in a one-to-many correspondence relationship.

3. A method for signaling, comprising:

generating at least one Physical Downlink Control Channel (PDCCH) corresponding to at least one carrier, wherein the state of a carrier indication bit in each PDCCH in the at least one PDCCH has a corresponding relation with the value of a Physical Control Format Indicator Channel (PCFICH) on the carrier corresponding to each PDCCH;

and sending the at least one PDCCH to user equipment, so that the user equipment can acquire the value of the PCFICH on the carrier corresponding to each PDCCH according to the state of the carrier indication bit in each PDCCH in the at least one PDCCH.

4. The signaling processing method according to claim 3, characterized in that, when 2, 2^NWhen the number of carriers of the at least one carrier is greater than or equal to 3 times, where N is the number of bits of the carrier indicator bit, the corresponding relationship includes:

a one-to-one correspondence relationship is formed between the state of the carrier indication bit of the PDCCH corresponding to each carrier of the at least one carrier and the value of the PCFICH on each carrier, or a many-to-one correspondence relationship is formed;

when 2 is in^NWhen the number of carriers of the at least one carrier is less than 3 times, the corresponding relationship includes:

in the at least one carrier, a one-to-many correspondence relationship is formed between the state of a carrier indication bit in the PDCCH corresponding to the at least one carrier and the value of the PCFICH on the carrier; or,

the corresponding relation comprises:

the state of a carrier indication bit in the cross-carrier-borne PDCCH indicates that the value of the PCFICH on the carrier on which the cross-carrier-borne PDCCH is located is the same as or different from the value of the PCFICH on the carrier on which the PDSCH corresponding to the cross-carrier-borne PDCCH is located.

5. A method for signaling, comprising:

receiving at least one Physical Downlink Control Channel (PDCCH) which is sent by a base station and corresponds to at least one carrier respectively, wherein a corresponding relation exists between the state of a carrier indication bit in the PDCCH corresponding to a non-main carrier in the at least one carrier and the value of a Physical Control Format Indication Channel (PCFICH) on the non-main carrier;

and acquiring the value of the PCFICH on the non-primary carrier according to the carrier indication bit state in the PDCCH corresponding to the non-primary carrier.

6. The signaling processing method according to claim 5, wherein when a value of the PCFICH obtained according to a state of a carrier indicator bit in the PDCCH corresponding to the non-primary carrier is one, the method further comprises:

determining data initial position information of a PDSCH on a non-main carrier corresponding to the PDCCH according to the acquired value of the PCFICH;

when the value of the PCFICH obtained according to the state of the carrier indicator bit in the PDCCH corresponding to the non-primary carrier is multiple, the method further includes:

and detecting and determining the value of the PCFICH from the obtained possible values of the PCFICHs, and determining the data initial position information of the PDSCH corresponding to the non-primary carrier according to the detected and determined value of the PCFICH.

7. A method for signaling, comprising:

receiving at least one Physical Downlink Control Channel (PDCCH) which is sent by a base station and corresponds to at least one carrier, wherein a corresponding relation exists between the state of a carrier indication bit in each PDCCH in the at least one PDCCH and the value of a Physical Control Format Indication Channel (PCFICH) on the carrier corresponding to each PDCCH;

and acquiring the value of the PCFICH on the carrier corresponding to each PDCCH according to the state of the carrier indication bit in each PDCCH in the at least one PDCCH.

8. The signaling processing method according to claim 7, wherein when a value of the PCFICH obtained according to a state of a carrier indicator bit in each PDCCH of the at least one carrier is one, the method further comprises:

determining data initial position information of a PDSCH on a carrier corresponding to each PDCCH according to the acquired value of the PCFICH;

when the value of the PCFICH obtained according to the state of the carrier indicator bit in each PDCCH of the at least one carrier is multiple, the method further includes:

and detecting and determining the value of the PCFICH from the obtained possible values of the PCFICHs, and determining the data initial position information of the PDSCH on the carrier corresponding to each PDCCH according to the detected and determined value of the PCFICH.

9. The signaling processing method according to claim 7, wherein the obtaining, according to a state of a carrier indicator bit in each PDCCH of the at least one PDCCH, a value of a PCFICH on a carrier corresponding to the each PDCCH includes:

acquiring a value of a PCFICH on a carrier where the PDCCH carried by the cross-carrier is located according to the state of a carrier indication bit in the PDCCH carried by the cross-carrier;

determining whether the value of the PCFICH on the carrier where the PDCCH borne by the cross-carrier is located is the same as the value of the PCFICH on the carrier where the PDSCH corresponding to the PDCCH borne by the cross-carrier is located according to the state of a carrier indication bit of the PDCCH borne by the cross-carrier, if so, the value of the PCFICH on the carrier where the PDSCH corresponding to the PDCCH borne by the cross-carrier is located is equal to the value of the PCFICH on the carrier where the PDCCH borne by the cross-carrier is located, otherwise, detecting and acquiring the value of the PCFICH on the carrier where the PDSCH corresponding to the PDCCH borne by the cross-carrier is located in possible values of the PCFICH except the value of the PCFICH on the carrier where the PDCCH borne by the cross-carrier is located.

10. A method for signaling, comprising:

acquiring a Physical Downlink Shared Channel (PDSCH) from a region except a control region in a subframe, wherein the control region is the largest region capable of bearing a Physical Downlink Control Channel (PDCCH) in one subframe;

within the control region, the PDSCH is acquired using a reverse time order of the symbol arrangement in the subframe.

11. A method for signaling, comprising:

mapping a Physical Downlink Shared Channel (PDSCH) to a region in a subframe except a control region, wherein the control region is the largest region capable of bearing a Physical Downlink Control Channel (PDCCH) in the subframe;

within the control region, a PDSCH is mapped applying a reverse time order of symbol arrangement in a subframe.

12. A base station, comprising:

a first generating module, configured to generate at least one physical downlink control channel PDCCH corresponding to at least one carrier, where a correspondence relationship exists between a state of a carrier indicator bit in a PDCCH corresponding to a non-primary carrier in the at least one carrier and a value of a physical control format indicator channel PCFICH on the non-primary carrier;

a first sending module, configured to send the at least one PDCCH to a user equipment, so that the user equipment obtains a value of the PCFICH on the non-primary carrier according to a state of a carrier indicator bit in the PDCCH corresponding to the non-primary carrier.

13. The base station as claimed in claim 12, wherein the number 2 is^NWhen the number of carriers of the non-main carrier is greater than or equal to 3 times, where N is the number of bits of the carrier indicator bit, the corresponding relationship includes:

the state of the carrier indicator bit of the PDCCH corresponding to each non-primary carrier in the non-primary carriers and the value of the PCFICH on each non-primary carrier are in one-to-one correspondence, or in many-to-one correspondence;

when 2 is in^NWhen the number of carriers of the non-main carrier is less than 3 times, the corresponding relationship includes:

in the non-primary carriers, the state of a carrier indication bit in the PDCCH corresponding to at least one non-primary carrier and the value of the PCFICH on the non-primary carrier are in a one-to-many correspondence relationship.

14. A base station, comprising:

a second generating module, configured to generate at least one physical downlink control channel PDCCH corresponding to at least one carrier, where a correspondence relationship exists between a state of a carrier indicator bit in each PDCCH of the at least one PDCCH and a value of a physical control format indicator channel PCFICH on the carrier corresponding to the each PDCCH;

a second sending module, configured to send the at least one PDCCH to a user equipment, so that the user equipment obtains, according to a state of a carrier indicator bit in each PDCCH of the at least one PDCCH, a value of a PCFICH on a carrier corresponding to each PDCCH.

15. The base station as claimed in claim 14, wherein the number 2 is^NWhen the number of carriers of the at least one carrier is greater than or equal to 3 times, where N is the number of bits of the carrier indicator bit, the corresponding relationship includes:

a one-to-one correspondence relationship is formed between the state of the carrier indication bit of the PDCCH corresponding to each carrier of the at least one carrier and the value of the PCFICH on each carrier, or a many-to-one correspondence relationship is formed;

when 2 is in^NWhen the number of carriers of the at least one carrier is less than 3 times, the corresponding relationship includes:

in the at least one carrier, a one-to-many correspondence relationship is formed between the state of a carrier indication bit in the PDCCH corresponding to the at least one carrier and the value of the PCFICH on the carrier; or,

the corresponding relation comprises:

the state of a carrier indication bit in the cross-carrier-borne PDCCH indicates that the value of the PCFICH on the carrier on which the cross-carrier-borne PDCCH is located is the same as or different from the value of the PCFICH on the carrier on which the PDSCH corresponding to the cross-carrier-borne PDCCH is located.

16. A user device, comprising:

a first receiving module, configured to receive at least one physical downlink control channel PDCCH that is sent by a base station and corresponds to at least one carrier, where a correspondence relationship exists between a state of a carrier indicator bit in the PDCCH corresponding to a non-primary carrier in the at least one carrier and a value of a physical control format indicator channel PCFICH on the non-primary carrier;

a first obtaining module, configured to obtain a value of the PCFICH on the non-primary carrier according to a carrier indicator bit state in the PDCCH corresponding to the non-primary carrier.

17. The user equipment of claim 16, further comprising:

a first processing module, configured to determine, when a value of the PCFICH acquired by the first acquiring module according to a state of a carrier indicator bit in the PDCCH corresponding to the non-primary carrier is one, data start position information of the PDSCH on the non-primary carrier corresponding to the PDCCH according to the acquired value of the PCFICH; when the first obtaining module obtains a plurality of values of the PCFICH according to the state of the carrier indicator bit in the PDCCH corresponding to the non-primary carrier, the first obtaining module detects and determines the value of the PCFICH from the obtained possible values of the plurality of PCFICHs, and determines the data start position information of the PDSCH corresponding to the non-primary carrier according to the detected and determined value of the PCFICH.

18. A user device, comprising:

a second receiving module, configured to receive at least one physical downlink control channel PDCCH that is sent by a base station and corresponds to at least one carrier, where a correspondence relationship exists between a state of a carrier indicator bit in each PDCCH of the at least one PDCCH and a value of a physical control format indicator channel PCFICH on the carrier corresponding to the each PDCCH;

a second obtaining module, configured to obtain, according to a state of a carrier indicator bit in each PDCCH of the at least one PDCCH, a value of the PCFICH on a carrier corresponding to each PDCCH.

19. The user equipment of claim 18, further comprising:

a second processing module, configured to determine, when a value of the PCFICH acquired by the second acquiring module according to a state of a carrier indicator bit in each PDCCH in the at least one carrier is one, data start position information of the PDSCH on the carrier corresponding to each PDCCH according to the acquired value of the PCFICH; when the second obtaining module obtains multiple values of the PCFICH according to the state of the carrier indicator bit in each PDCCH in the at least one carrier, detecting and determining the value of the PCFICH from the obtained possible values of the multiple PCFICHs, and determining data start position information of the PDSCH on the carrier corresponding to each PDCCH according to the detected and determined value of the PCFICH; or,

the value of the PCFICH on the carrier where the PDCCH carried by the cross-carrier is located is obtained according to the state of the carrier indication bit in the PDCCH carried by the cross-carrier; determining whether the value of the PCFICH on the carrier where the PDCCH borne by the cross-carrier is located is the same as the value of the PCFICH on the carrier where the PDSCH corresponding to the PDCCH borne by the cross-carrier is located according to the state of a carrier indication bit of the PDCCH borne by the cross-carrier, if so, the value of the PCFICH on the carrier where the PDSCH corresponding to the PDCCH borne by the cross-carrier is located is equal to the value of the PCFICH on the carrier where the PDCCH borne by the cross-carrier is located, otherwise, detecting and acquiring the value of the PCFICH on the carrier where the PDSCH corresponding to the PDCCH borne by the cross-carrier is located in possible values of the PCFICH except the value of the PCFICH on the carrier where the PDCCH borne by the cross-carrier is located.

20. A user device, comprising:

a third obtaining module, configured to obtain a physical downlink shared channel PDSCH from a region in a subframe except for a control region, where the control region is a largest region in the subframe that can carry a physical downlink control channel PDCCH;

a fourth obtaining module, configured to apply a reverse time sequence to the symbol arrangement in the subframe to obtain the PDSCH in the control region.

21. A base station, comprising:

the device comprises a first mapping module, a second mapping module and a third mapping module, wherein the first mapping module is used for mapping a Physical Downlink Shared Channel (PDSCH) to an area in a subframe except a control area, and the control area is the largest area capable of bearing a Physical Downlink Control Channel (PDCCH) in the subframe;

and a second mapping module, configured to map the PDSCH in the control region by applying a reverse time order to the symbol arrangement in the subframe.

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