WO2013044887A2 - Transmission method and reception method for control information, and device - Google Patents

Abstract

The embodiments of the present invention relate to the field of communications, provide a transmission method and reception method for control information and a device, and are invented to reduce the resources the control information uses. The transmission method for control information comprises: determining the control information to be transmitted, the control information comprising at least two information blocks; performing channel encoding and rate matching for each information block of the at least two information blocks; mapping the channel-encoded, rate-matched data of the each information block of the at least two information blocks onto data layers, such that the data of at least one information block of the at least two information blocks is distributed on at least two data layers; transmitting the data mapped on the data layers. Also provided is a reception method for control information, a base station, and user equipment. The present invention is applicable to wireless communications such as Long Term Evolution.

Description

 The present invention claims the Chinese patent application filed on September 30, 2011, the Chinese Patent Application No. 201110294028.7, the invention entitled "Transmission Method, Receiving Method and Apparatus for Control Information" Priority is hereby incorporated by reference in its entirety. Technical field

 The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting and receiving control information.

Background technique

 In the Long Term Evolution LTE (Long Term Evolution) system of the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP), various types carried on subframes Data is divided into various physical channels on the physical time-frequency resources of the subframe to organize the mapping. Various physical channels can be divided into two categories: control channels and traffic channels. Correspondingly, the data carried by the control channel may be referred to as control data, also referred to as control information, and the data carried by the traffic channel may be referred to as service data. The basic purpose of the communication is to transmit the service data, and the control information is used to notify the user equipment (User Equipment, UE) of the number of physical resource blocks (PRBs) occupied by the service data sent by the UE and the PRBs throughout. The starting position of all PRBs in the system, the modulation and coding mode of service data, etc., its main function is to assist the transmission of service data. Thus, a communication system is preferably designed to minimize the resources used by the control channel.

In general, the resources used for the transmission of service data in the Orthogonal Frequency Division Multiple Access (OFDMA) system are flexibly allocated, that is, for a certain user, each subframe is sent to The number of PRBs occupied by the user's service data. The starting positions of all PRBs in the entire system are changed. Therefore, when sending the service data to the user, the user needs to be told at the same time, which should it be? The PRB goes to receive the business data for it. Similarly, for a certain user, the modulation and coding method used for the service data sent to the user by each subframe may also be changed, and the user needs to be told. Information such as Resource Allocation (RA) and Modulation and Coding Scheme (MCS) is In order to assist (or control) the transmission of service data, it is called control information and is transmitted on the control channel.

 According to the LTE Release 8/9/10 standard, the control channel in one subframe can occupy the first 3 OFDM symbols of all PRBs in the entire system, that is, the overhead is 3/14, which is greater than 20%. This overhead is relatively large. The resources available for business data are reduced, and the effective utilization of resources is not high.

 In the prior art, when the base station has multiple antenna ports, the transmission mode of the control information is the transmit diversity mode, specifically the space frequency block coding SFBC (Spatial-Frequency) based on the Alamoti transmit diversity mode. Block Code, SFBC). Since the channel diversity from each antenna port to the receiving end needs to be considered when using the transmit diversity mode, the actual performance is not good. When a certain number of control information bits are to be transmitted and performance requirements are met, it is necessary to use a coding scheme with a lower code rate, that is, to encode the certain number of control information bits into more codeword bits, thus requiring more occupation The resource transmits these more codeword bits, which increases the resource overhead occupied by the control information, reduces the resources available for the service data, and the resource utilization rate is not high.

Summary of the invention

 Embodiments of the present invention provide a method and an apparatus for transmitting and receiving control information, which can effectively reduce resource overhead occupied by control information.

 In one aspect, a method for transmitting control information is provided, including:

 Determining control information that needs to be transmitted, the control information includes at least two pieces of information; performing channel coding and performing rate matching on each of the at least two pieces of information;

 Mapping the channel-coded and rate-matched data of each of the at least two pieces of information to the data layer, so that data of at least one piece of the at least two pieces of information is distributed on at least two data layers;

 The data mapped to the data layer is transmitted.

 In one aspect, a method for receiving control information is provided, including:

Receiving control information transmitted by the base station, where the control information includes at least two pieces of information, each of the at least two pieces of information respectively performing channel coding and rate matching Arranging, each of the at least two pieces of information is channel-coded and the rate-matched data is distributed on at least two data layers;

 And obtaining, according to the number of data layer layers of the control information by the base station, channel coding and rate matching data in each of the at least two pieces of information in the received control information;

 And performing channel coding and rate matching on the at least two pieces of information to perform rate matching and decoding, to obtain original data of the at least two pieces of information.

 In one aspect, a base station is provided, including:

 a determining unit, configured to determine control information that needs to be transmitted, where the control information includes at least two pieces of information;

 a processing unit, configured to separately perform channel coding and rate matching on each of the at least two pieces of information;

 a mapping unit, configured to map the channel-coded and rate-matched data of each of the at least two pieces of information onto the data layer, so that data of at least one piece of the at least two pieces of information is distributed in at least two On the data layer;

 And a transmission unit, configured to transmit the data mapped to the data layer.

 In another aspect, a UE is further provided, including:

 a receiving unit, configured to receive control information transmitted by the base station, where the control information includes at least two pieces of information, each of the at least two pieces of information is channel coded and rate matched, and the at least two pieces of information are Each piece of information is channel coded and rate matched data is distributed over at least two data layers;

 An acquiring unit, configured to acquire, according to the number of data layer layers of the control information by the base station, each piece of the at least two pieces of information in the control information received by the receiving unit, performing channel coding and rate matching Post data

And a processing unit, configured to perform channel coding and rate matching data on the at least two pieces of information acquired by the acquiring unit to perform rate decoding and decoding, to obtain original data of the at least two pieces of information. After the foregoing technical solution, the method for transmitting and receiving control information, the base station, and the UE provided by the embodiment of the present invention use the at least two data layers to carry data during transmission, which can greatly improve the data carrying capacity, and thus In one transmission, more control information can be transmitted, which greatly improves the data transmission efficiency of the control information; and at the same time, by mapping the channel-coded and rate-matched data onto the data layer, the at least The data corresponding to at least one piece of information of the two pieces of information is distributed on the at least two data layers, so that the data corresponding to one piece of information is only dependent on a channel condition of one data layer, and the code rate of the information block is composed of multiple data layers. The channel condition is determined, and the average effect can be obtained, and the situation determined by the worst channel condition is avoided, and the number of resource basic unit REs required as a whole is reduced, thereby improving resource utilization.

DRAWINGS

 In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

 1 is a flowchart of an embodiment of a method for transmitting control information according to the present invention;

 2 is a schematic diagram of a mapping manner of an embodiment of a method for transmitting control information according to the present invention;

 FIG. 3 is a schematic diagram of another mapping manner of an embodiment of a method for transmitting control information according to the present invention; FIG.

 4 is a schematic diagram of still another mapping manner of an embodiment of a method for transmitting control information according to the present invention;

 FIG. 5 is a schematic diagram of still another mapping manner of an embodiment of a method for transmitting control information according to the present invention; FIG.

 6A is a specific flowchart of an embodiment of a method for transmitting control information according to the present invention; FIG. 6B is a specific flowchart of another embodiment of a method for transmitting control information according to the present invention; Flow chart

 8 is a structural block diagram of an embodiment of a base station according to the present invention;

 Figure 9 is a block diagram showing the structure of the processing unit shown in Figure 8;

 FIG. 10 is a structural block diagram of an embodiment of a user equipment according to the present invention.

detailed description

The technical solution of the embodiment of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention. The invention is described in a clear and complete manner, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

 An embodiment of the present invention provides a method for transmitting control information. The base station, as shown in FIG. 1, includes:

 511. Determine control information that needs to be transmitted, where the control information includes at least two pieces of information.

 512. Perform channel coding and perform rate matching on each of the at least two pieces of information.

 513. The channel-coded and rate-matched data of each of the at least two pieces of information is mapped onto the data layer, so that data of at least one piece of the at least two pieces of information is distributed in at least two data layers. Upper

 It should be noted that, in this embodiment, the base station uses multiple data layers for data transmission, that is, the number of data layer layers is at least two, wherein the data layer layer may refer to data that the transmitting end and the receiving end can effectively support parallel transmission. Number. The data layer in the embodiment of the present invention may also be referred to as a transmission layer, or simply as a layer.

 In this step, "mapping onto the data layer" means mapping to one or more partial or all data layers, and when each of the at least two pieces of information is mapped by the data layer, the data transmission station Data is distributed across all of the data layers used.

 514. Transmit the data mapped to the data layer.

The method for transmitting control information provided by the embodiment of the present invention maps channel-coded and rate-matched data to at least two data layers, and uses the at least two data layers to carry data during transmission, and the same time-frequency The resource can greatly increase the data carrying capacity, so in one transmission, more control information can be transmitted, and the data transmission efficiency of the control information is greatly improved; and the channel-coded and rate-matched data is mapped to the data layer. The data corresponding to at least one piece of the at least two pieces of information is distributed on the at least two data layers, so that the data corresponding to one piece of information is only dependent on a data layer channel condition, and the code of the information block The rate is determined by the channel conditions of multiple data layers, and the average effect can be achieved, and the situation determined by the worst channel condition is avoided, and the number of REs (Resource Element) required as a whole is reduced, thereby making the resources Profit The utilization rate is increased.

 Specifically, the control information that needs to be transmitted in the S1 1 of the embodiment may include the control information corresponding to the uplink service data transmission and the control information corresponding to the downlink service data transmission, where the control information corresponding to the uplink service data transmission may also be called For the uplink allocation,

Uplink Grant or UL Grant, the control information corresponding to the downlink service data transmission may also be referred to as downlink downlink, Downlink Grant or DL Grant or DL assignment 1", and the at least two pieces of information may be a corresponding UL Grant. One piece corresponds to DL Grant, and so on.

 In the LTE-Advanced (LTE-A) system of LTE systems, carrier aggregation technology was chosen to support wider bandwidth to meet the International Telecommunications Union's peak data rate requirements for fourth-generation communication technologies. In the carrier aggregation technique, the spectrums of two or more component carriers are aggregated together to obtain a wider transmission bandwidth. The LTE-A user equipment can be configured with different uplink and downlink component carriers. The uplink component carrier transmits uplink service data, the downlink component carrier transmits downlink service data, and each member carrier has independent hybrid automatic retransmission. The Hybrid Automatic Repeat Request (HQQ) process is performed on the physical downlink shared channel (PDSCH) of each downlink component carrier when the user equipment in the LTE-A accesses multiple downlink component carriers simultaneously. The downlink service data transmitted to the user equipment or the uplink service data transmitted to the base station/base station on the physical uplink shared channel (PUSCH) of each uplink component carrier needs to transmit corresponding control information.

 Therefore, the at least two pieces of information may include control information corresponding to the service data transmission on the plurality of component carriers, and each block corresponds to control information corresponding to the service data on one or a group of uplink/downlink component carriers.

 It should be noted that the embodiment of the present invention does not limit the content, division, and the like of at least two pieces of information.

 In an embodiment of the present invention, in order to improve resource utilization, the method for transmitting control information may further include:

 Determine the number of bits that this transmission can carry;

At this time, performing channel coding and rate matching on each of the at least two pieces of information in S12 specifically includes: Channel coding is performed on each of the at least two pieces of information. Specifically, the coding mode of channel coding for each piece of information is not limited, and may be any channel coding method that can be used, for example, a Reed-Muller code. , Convolutional code, Turbo code, etc. Each block of information may optionally be followed by a Cyclic Redundancy Check (CRC) bit prior to encoding.

 Performing rate matching on the channel-coded data of each of the at least two pieces of information, and summing the number of bits of each block information of the at least two pieces of information after channel coding and performing rate matching is equal to the present The number of bits that the secondary transmission can carry;

 The number of bits matched by the rate information of each block information of the at least two pieces of information depends on the number of original information bits corresponding to each piece of information, and the coded code rates corresponding to the pieces of block information are the same, and each The block information rate is matched to the number of bits corresponding to the number of layers corresponding to one codeword, which improves resource utilization.

 Optionally, the foregoing step of determining the number of bits that the current transmission can carry may specifically include:

 Determining the control signal to be transmitted, ^ the number of physical resources used, the number of data layers, and the modulation mode;

 The number of bits that can be carried by the current transmission is determined according to the number of data layer layers, the number of physical resources, and the modulation mode.

 The number of physical resources mainly refers to the number of resource elements (Resource Element, RE) that can be used to carry data corresponding to the control information. The number of layers of the layer refers to the number of data that the transmitter and receiver channels can effectively support for parallel transmission, assuming that the number of layers is k. In simple terms, if there are k*N data symbols to be transmitted, if the channel supports the k layer, then each layer can transmit N data symbols. Each RE can carry k data symbols at the same time, requiring a total of N REs. If the number of physical resources, specifically the number of REs, is R, the determined number of data layers is k. The modulation method used enables each modulation symbol to carry m bits, and this transmission can transmit a total of m*R*k bits.

 At this time, the rate matching of the channel-coded data of each of the at least two pieces of information may specifically include:

Determining a sum of original bit numbers of each block information of the at least two pieces of information; determining a number of bits after channel coding and rate matching of each piece of information; performing channel coding according to the determined each piece of information The number of bits after rate matching will Each piece of the at least two pieces of information is rate matched.

 It should be noted that, in the embodiment of the present invention, a bit corresponding to control information before channel coding is referred to as an original information bit, and the original information bit may include a possible CRC bit, and the corresponding bit after channel coding and rate matching is referred to as a bit. Codeword bits.

 For example, if the control information in the embodiment includes two pieces of information, respectively, the first control information and the second control information; the original number of bits of the first control information is X; the original of the second control information The number of bits is Y; the number of bits that can be carried by the current transmission is N; therefore, the number of codewords after the data rate matching of the first control information is channel-coded is: ceil{X* N / (X +Y) } or floor{ X*N / (X+Y)}, the number of codeword bits after the data rate matching of the second control information is: N-ceil{X* NI (X+ Y) } or N-floor{ X*NI (X+Y)} , where ceil means rounded up and floor means rounded down.

 It is to be understood that, in the embodiment of the present invention, the method for performing rate matching on the channel-encoded data of each of the at least two pieces of information is not limited. In addition to the manner described above, other methods may be used. .

 In an actual system, the data conditions experienced by data on multiple data layers may be different, some channel conditions are good, and some channel conditions are poor. On the other hand, regardless of the channel conditions of each layer, the number of original information bits contained in each piece of information in the control information to be transmitted is irreversibly changed. What can be changed is the number of codeword bits after encoding and rate matching, that is, the code rate is variable, and the number of REs that can be used is variable. Under the same channel conditions, the lower the general code rate, the better the performance, of course, the more REs are used. Conversely, to achieve the same performance, such as satisfying the bit error rate of 1%, the worse the channel condition, the lower the required code rate, so the more REs that need to be used, the more resources are occupied.

If at least one piece of information corresponds to a codeword bit is only mapped to one data layer. Then the performance of the block information depends only on the channel conditions of the data layer. If the channel condition of the data layer is just bad, to ensure the performance of the information block, the code rate of the information block must be reduced, thereby occupying REs. The number has increased. In the case of poor conditions, the information block containing a large number of original information bits is just mapped to the data layer with the worst channel condition, and the number of REs occupied will be more. It can be found that the number of REs to be occupied is determined by the worst channel condition, and the other data layers have no effect regardless of the channel conditions, or the number of original bits included in the corresponding block information. Therefore, resource utilization is low. In order to make the codeword bits corresponding to the information of the block information are compared on the data layer, the channel condition of the data layer can be avoided. In this embodiment, preferably, in S13, the device is The channel-coded and rate-matched data of each of the at least two pieces of information is mapped to the data layer, so that data of at least one of the at least two pieces of information is distributed on the at least two data layers, which may specifically include :

 Mapping the channel-coded and rate-matched data of each of the at least two pieces of information onto the data layer such that data corresponding to each piece of information is distributed over the at least two data layers, and preferably The data corresponding to each piece of information is distributed on all data layers. Since the code rate of each piece of information is determined by the channel conditions of the at least two data layers, an averaging effect can be achieved, and the situation determined by the worst channel condition is avoided, and the number of REs required as a whole is reduced, thereby making Increased resource utilization.

 Generally, before the data is mapped to the data layer, modulation is required. Therefore, in an embodiment of the present invention, the information of each of the at least two pieces of information is channel-coded and rate matched. The data is mapped to the data layer, so that the data of the at least one piece of the at least two pieces of information is distributed on the at least two data layers, and the

 And performing channel-coded and rate-matched data on each of the at least two pieces of information, respectively, to obtain the at least two pieces of information, a packet, and a corresponding modulation symbol;

 Mapping the modulation symbols corresponding to each of the at least two pieces of information onto the data layer such that the modulation symbols corresponding to each piece of information are distributed on the at least two data layers, and preferably, The modulation symbols corresponding to each piece of information are distributed over all data layers. Preferably, when mapping, the modulation symbols corresponding to each piece of the at least two pieces of information are sequentially and alternately mapped to all the data layers, that is, the modulation symbols corresponding to the pieces of information are sequentially and layer by layer. Mapping to all data layers such that the modulation symbols corresponding to the pieces of information are distributed across all data layers.

 Specific modulation methods include, but are not limited to, QPSK (Quadature Phase Shift Keying) modulation, 8PSK (phase shift keying) modulation, 16QAM (Quadrature Amplitude Modulation) ) Modulation and so on.

Optionally, in an embodiment of the present invention, the channel-coded and rate-matched data of each of the at least two pieces of information is mapped onto the data layer, so that The data of the at least one piece of the at least two pieces of information distributed on the at least two data layers may specifically include:

 Interleaving the channel-coded and rate-matched data of each of the at least two pieces of information;

 The interleaving manner may be: a prime-based interleaving method, a traveling listed interleaving manner, an M-sequence generated interleaving manner, and the like. The interleave manner in an alternate arrangement is used to illustrate that each block information of the at least two pieces of information is channel-coded and rate-matched to obtain codeword bits corresponding to the pieces of block information. The 0 bits corresponding to the block information constitute a bit sequence, and after all the 0 bits corresponding to the pieces of information are taken, then according to the order of taking the pieces of information, the corresponding 0 of the block information is sequentially taken. The bits are placed in the bit sequence, and the interleaving is repeated until the number of bits of all the information blocks is completed, wherein the value of 0 may be 1; the value of 0 may also be equal to the number of information bits corresponding to the modulation mode of the data, For example, when the modulation mode of the data is QPSK, the value of 0 is 2. It should be noted that, in the alternate interleaving manner, if the codeword bits corresponding to one piece of information are selected first, the remaining codeword bits in the codeword bits corresponding to another piece of information may be all taken out at one time. In the bit sequence.

 Mapping the interleaved data to each of the data layers, and after one data layer is full, mapping to the next data layer is started, so that data corresponding to each piece of information is distributed in the at least two data. On the floor.

 For example, it is assumed that the control information to be transmitted includes two blocks, which are the first block information and the second block information, respectively, for transmitting the control signal, and the control channel of the packet supports two data layer transmissions, as shown in FIG. 2, First, the first block information and the second block information are interleaved to form an interleaved bit sequence, so that the first block information and the second block information are distributed as uniformly as possible in the interleaved bit sequence, and then This interleaved bit sequence is modulated and mapped onto the two data layers, and begins to map to the second layer after the first layer is full.

Or optionally, the channel-coded and rate-matched data of each of the at least two pieces of information is mapped onto the data layer, so that data distribution of at least one piece of the at least two pieces of information is performed. The at least two data layers may include: grouping, by using channel-coded and rate-matched data, each of the at least two pieces of information, and mapping each data in each group of data to different ones. On the data layer, data corresponding to each piece of information is distributed on the at least two data layers. For example, it is assumed that the control information to be transmitted includes two blocks, which are the first block information and the second block information, respectively, for transmitting the control signal, and the control channel of the packet supports two data layer transmissions, as shown in FIG. The data in the first block of information is first mapped to the data layer 1, then to the data layer 2, and then to the data layer 1, so that the first block of information is used up, and then the second block of information is mapped.

 Alternatively, optionally, the channel-coded and rate-matched data of each of the at least two pieces of information is grouped, and the grouped data is respectively mapped to different data layers, so that The data corresponding to each piece of information is distributed over at least two of the data layers.

 Of course, it should be particularly noted here that the above manner is only a preferred manner, rather than a limitation, of the channel-coded and rate-matched data of each of the at least two pieces of information being used in mapping. And mapping the channel-coded and rate-matched data of each of the at least two pieces of information to the data layer may also be performed in the following manner, for example, each of the at least two pieces of information is channelized. The coded and rate-matched data is not interleaved, but is directly mapped to each data layer. After a data layer is full, it begins to map to the next data layer, as shown in Figure 4. For another example, each of the at least two pieces of information is channel-coded and the rate-matched data is not interleaved, but each piece of information corresponds to a data layer and is respectively mapped to different data layers, as shown in FIG. 5 is shown.

A further embodiment of the present invention provides a method for transmitting control information, as shown in FIG. 6A, including:

 561. Determine control information that needs to be transmitted, where the control information includes at least two pieces of information.

 562. Determine a number of physical resources, a data layer layer, and a modulation mode used by the control information that needs to be transmitted.

563. Perform channel coding on each of the at least two pieces of information. Specifically, the coding manner of channel coding for each piece of information is not limited, and may be any channel coding method that can be used, for example, Reed-Muller code, Convolutional code, Turbo code, and the like. Each block of information can optionally be CRC (Cyclic Redundancy Check). 564. Determine, according to the number of data layer layers, the number of physical resources, and a modulation mode, the number of bits that can be carried by the current transmission.

 Specifically, if the number of physical resources (specifically, the number of REs) is R, the determined number of data layer layers is k. The modulation method used enables each modulation symbol to carry m bits, and this transmission can transmit a total of m*R*k bits.

 565. Perform rate matching on the channel-coded data of each of the at least two pieces of information according to the number of bits that can be carried by the current transmission, and perform channel coding on each block of the at least two pieces of information. The sum of the number of bits after rate matching is equal to the number of bits that can be carried by this transmission.

 Specifically, if the control information in the embodiment includes two pieces of information, respectively, the first control information and the second control information; the original number of bits of the first control information is X; The number of original bits is Y; the number of bits that can be carried by the current transmission is N; the number of bits after the data rate matching of the first control information after channel coding is: ceil{X* N / (X+Y) } or floor{ X*N / (X+Y)}, the number of bits after the data rate matching of the second control information after channel coding is: N-ceil{X* N / (X+Y) } or N-floor{ X*NI (X+Y)}.

 566. Interleave the codeword bits obtained by performing rate matching on the channel-coded data of each of the at least two pieces of information.

 The interleaving method can be various ways, for example: a prime-based interleaving method, a traveling listed interleaving method, an M-sequence generating interleaving method, and the like.

 567. modulate the interleaved bits and sequentially map them to each of the data layers.

 In this step, the modulation method used is not limited, such as QPSK modulation, 8PSK modulation, 16QAM modulation, and the like.

 The sequence mapping means that the data layer is mapped to the next data layer after the data layer is full, so that the data corresponding to each piece of information is distributed on the at least two data layers.

568. Perform precoding on the data mapped to the data layer and transmit the data. It should be noted that the order of the steps in this embodiment can be adjusted. The sequence of the steps in this embodiment can be adjusted by those skilled in the art. For example, S65 can be performed after S61 and before S62. In this embodiment, each block information of at least two pieces of information is channel-coded and rate matched, and the channel-coded and rate-matched data is mapped to at least two data layers, and the at least two are used for transmission. The data layer carries data, which can greatly increase the data carrying capacity. Therefore, in one transmission, more control information can be transmitted, and the data transmission efficiency of the control information is greatly improved. In another embodiment, the data corresponding to each piece of information may be distributed on the at least two data layers, and the data corresponding to each piece of information may be prevented from relying on only one data layer channel condition, and the code of each information block. The rate is determined by the channel conditions of all data layers, and the average effect can be achieved, and the situation determined by the worst channel condition is avoided, and the number of REs required as a whole is reduced, thereby improving resource utilization.

The method for transmitting control information provided in this embodiment, as shown in FIG. 6B, includes:

S61', determining control information that needs to be transmitted, wherein the control information includes at least two pieces of information.

 S62', determining the number of physical resources, the number of data layer layers, and the modulation mode used by the control information to be transmitted.

 S63', performing channel coding on each of the at least two pieces of information. Specifically, the coding manner of channel coding for each piece of information is not limited, and may be any channel coding method that can be used, for example, Reed-Muller code, Convolutional code, Turbo code, and the like. Each block of information can optionally be CRC (Cyclic Redundancy Check).

 S64', determining the number of bits that can be carried by the current transmission according to the number of data layer layers, the number of physical resources, and the modulation mode.

 Specifically, if the number of physical resources, specifically the number of REs, is R, the determined number of data layer layers is k. The modulation method used allows each modulation symbol to carry m bits, so that this transmission can transmit a total of m*R*k bits.

 S65′, performing rate matching on the channel-coded data of each of the at least two pieces of information according to the number of bits that can be carried by the current transmission, and each block of the at least two pieces of information is channel-passed. The sum of the number of bits encoded and rate matched is equal to the number of bits that can be carried by this transmission.

Specifically, if the control information in the embodiment includes two pieces of information, respectively, the first control information and the second control information; the original number of bits of the first control information is X; The number of original bits of the second control information is γ; the number of bits that can be carried by the current transmission is N; the number of bits after the data rate matching of the first control information after channel coding is: ceil{X* N / (X+Y) } or floor{ X*N / (X+Y)}, the number of bits after the data rate matching of the second control information after channel coding is: N-ceil{X* N / (X+Y) } or N-floor{ X*NI (X+Y)}.

 S66', respectively, the channel-coded and rate-matched data (ie, codeword bits) of each of the at least two pieces of information is modulated to obtain modulation symbols corresponding to the at least two pieces of information.

 Modulation methods such as QPSK modulation, 8PSK modulation, 16QAM modulation, and the like.

S67: Mapping the modulation symbols corresponding to each piece of the at least two pieces of information onto the data layer, so that the modulation symbols corresponding to each piece of information are distributed on the at least two data layers.

 And preferably, the modulation symbols corresponding to each of the at least two pieces of information are mapped onto the data layer such that the modulation symbols corresponding to each piece of information are distributed on all data layers.

 The specific method may be: in the manner of group mapping, before the mapping, grouping the modulation symbols corresponding to each piece of the at least two pieces of information, and mapping each group of modulation symbols to different data layers respectively, so that And the data corresponding to each piece of information is distributed on the at least two data layers; or, the channel-coded and rate-matched data of each of the at least two pieces of information is grouped, and the grouping is performed after the grouping Each group of data is mapped to a different data layer, such that data corresponding to each piece of information is distributed on at least two of the data layers.

 It should be noted that the above only enumerates several possible specific mapping manners, as long as the modulation symbols corresponding to each piece of information are distributed on the at least two data layers, and preferably, each of the The effect that a piece of information corresponds to the modulation symbols distributed over all data layers, obviously, other methods are also possible.

 S68', precoding and transmitting the data mapped to the data layer. It should be noted that the order of the steps in this embodiment can be modulated, such as S65, and can also be placed between S61 and S62.

In this embodiment, each block information of at least two pieces of information is channel-coded and rate matched, and the channel-coded and rate-matched data is mapped to at least two data layers. In the transmission, the at least two data layers are used to carry data, which can greatly increase the data carrying capacity. Therefore, in one transmission, more control information can be transmitted, and the data transmission efficiency of the control information is greatly improved. In another embodiment, the data corresponding to each piece of information may be distributed on the at least two data layers, and the data corresponding to each piece of information may be prevented from relying on only one data layer channel condition, and the code of each information block. The rate is determined by the channel conditions of all data layers, and the average effect can be achieved, and the situation determined by the worst channel condition is avoided, and the number of REs required as a whole is reduced, thereby improving resource utilization.

Corresponding to the foregoing method, the embodiment of the present invention further provides a method for receiving control information. Based on the UE, as shown in FIG. 7, the method includes:

 S71. Receive control information transmitted by a base station, where the control information includes at least two pieces of information, each of the at least two pieces of information is separately channel coded and rate matched, and each of the at least two pieces of information The information is channel coded and rate matched data is distributed over at least two data layers.

 Preferably, data of channel coding and rate matching of each of the at least two pieces of information is distributed on the at least two data layers.

 Specifically, the UE receives a signal sent by the base station, where the information includes a data signal and a pilot signal. Generally, for a system using OFDM access technology, when receiving a signal, the UE usually receives all the signals, and then finds the physical resource location carrying the data itself, that is, the RE, on the entire time-frequency resource, and The data is demodulated and decoded to obtain its own information.

 Optionally, the at least two pieces of information include uplink data transmission control information and downlink data transmission control information, or the at least two pieces of information include an uplink grant (UL grant) or a downlink assignment (DL assignment), or The at least two pieces of information include control information corresponding to the service data of the uplink component carrier and control information corresponding to the service data of the downlink component carrier, or each of the at least two pieces of information corresponds to one or a group of uplink/downlink component carriers. Control information corresponding to the data.

In the embodiment of the present invention, there is no limitation on how the UE knows the location of the physical resource occupied by the control information, for example, receiving signaling signaling of the base station, or pre-defining the location and size of some possible physical resources, when the UE receives Perform blind detection, that is, try all possible situations until the information demodulated and decoded by one attempt can pass The designed verification mechanism either failed the verification mechanism.

 572. Obtain, according to the data layer layer that the base station transmits the control information, the channel coding and rate matching data in each of the at least two pieces of information in the received control information.

 It should be noted that, in the embodiment of the present invention, how the UE knows that its own control information is sent on several layers of data layers, that is, the base station uses several layers of data layers to send control information, and the like, for example, receiving signaling signaling of the base station. , or pre-defining some possible values or ranges, the UE performs blind detection when receiving, that is, tries all the possible situations until the information that is demodulated and decoded at a certain time can pass the design verification mechanism or fails to pass the school 3 Full mechanism.

 Specifically, it is assumed that the number of data layer layers of the transmission control information is k. In this step, the data on the RE corresponding to each control information is demodulated according to the k layer transmission, and the control information is obtained according to the mapping rule of the control information. Obtaining a relative position of codeword bits or adjustment symbols corresponding to each information block in all demodulated codeword codeword bits or modulation symbols, thereby acquiring each of the at least two pieces of information for channel coding and rate Matched data.

 573. Perform channel coding and rate matching data on the at least two pieces of information to perform rate matching and decoding, to obtain original data of the at least two pieces of information.

 The method for receiving control information provided by the embodiment of the present invention controls control information transmitted by at least two data layers, and each of the at least two pieces of information is channel-coded and rate-matched, and is channel-coded. And the rate-matched data is mapped to at least two data layers, and the at least two data layers are used to carry data during transmission, which can greatly increase the data carrying capacity, so that more control can be transmitted in one transmission. Information greatly improves the data transmission efficiency of control information.

 It should be noted that, in step S72, the mapping rule of the control information may be preset, or may be notified by the base station to the UE. Therefore, in an embodiment of the present invention, the base station transmits the location in step S72. The data layer layer of the control information, in the received control information, the data obtained by acquiring the at least two pieces of information for channel coding and rate matching may specifically include:

And according to the base station transmitting the control signal, the number of data layer layers and presetting, in the received control information, acquiring the at least two pieces of information for channel coding and rate Matching data;

 Or

 Determining, according to the number of data layer layers of the base station that the control information is transmitted, and the notification of the base station, acquiring, by using the received control information, the at least two pieces of information for channel coding and rate matching;

 In an embodiment of the present invention, in the control information received in step S71, each of the at least two pieces of information is modulated by channel coding and rate matching, and each piece of information is performed. Modulated modulation symbols are distributed over the at least two data layers;

 At this time, in step S72, according to the data layer layer of the base station transmitting the control information, acquiring, in the received control information, each block information of the at least two pieces of information for channel coding and rate matching data. Specifically include:

 Demodulating the received control information according to the number of data layer layers of the base station transmitting the control information;

 In the demodulated control information, each block information of the at least two pieces of information is obtained for channel coding and rate matching data.

 According to the number of data layer layers of the base station transmitting the control information, in the received control information, acquiring each piece of the at least two pieces of information for channel coding and rate matching may specifically include: :

 Demodulating the received control information according to the number of data layer layers of the base station transmitting the control information;

 In the demodulated control information, each block information of the at least two pieces of information is obtained for channel coding and rate matching data. In addition, corresponding to the transmission method of the control information provided by the embodiment of the present invention, the embodiment of the present invention further provides a base station 80, as shown in FIG. 8, including:

 a determining unit 81, configured to determine control information that needs to be transmitted, where the control information includes at least two pieces of information;

 The processing unit 82 is configured to separately perform channel coding and perform rate matching on each of at least two pieces of information in the control information determined by the determining unit 81;

a mapping unit 83, configured to process each block information of the at least two pieces of information Unit 82 channel-coded and rate-matched data is mapped onto the data layer such that data of at least one of the at least two pieces of information is distributed over at least two data layers;

 The transmitting unit 84 is configured to transmit data mapped by the mapping unit 83 to the data layer.

 In the base station provided by the embodiment of the present invention, the mapping unit 83 maps the channel-coded and rate-matched data to at least two data layers, and the transmission unit 84 uses the at least two data layers to carry data during transmission. The data carrying capacity is greatly improved, so that more control information can be transmitted in one transmission, which greatly improves the data transmission efficiency of the control information; and at the same time, by mapping the channel-coded and rate-matched data to the data layer, The data corresponding to at least one piece of the at least two pieces of information is distributed on the at least two data layers, so that the data corresponding to one piece of information is only dependent on a channel condition of one data layer, and the code rate of the information block is increased by The channel conditions of the data layers are determined, and the average effect can be achieved, and the situation determined by the worst channel conditions is avoided, and the number of REs required as a whole is reduced, thereby improving resource utilization.

 The at least two pieces of information include uplink data transmission control information and downlink data transmission control information; or each of the at least two pieces of information corresponds to control information corresponding to service data on one or a group of uplink/downlink component carriers.

 Further, the determining unit 81 is further configured to determine the number of bits that the current transmission can carry;

 The processing unit 82 is specifically configured to:

 Channel coding is performed on each of at least two pieces of information in the control information determined by the determining unit 81;

 Performing rate matching on the channel-coded data of each of the at least two pieces of information in the control information determined by the determining unit 81, so that each block of the at least two pieces of information is channel-coded and rate-matched. The sum of the number of bits is equal to the number of bits that can be carried by this transmission.

 Optionally, the determining unit 81 is specifically configured to: determine a number of physical resources used by the control information that needs to be transmitted, a number of data layer layers, and a modulation mode; and determine, according to the number of data layer layers, the number of physical resources, and a modulation mode. The number of bits that can be carried in this transmission; then, as shown in FIG. 9, the processing unit 82 further includes:

a determining module 821, configured to be capable of carrying the current transmission determined according to the determining unit 81 The number of bits, determining the number of bits after the data rate matching of each piece of information after channel coding;

 The rate matching module 822 is configured to perform bit-coded data rate matching by using each block information determined by the determining module 821, and perform channel-encoded data for each block of the at least two pieces of information. Rate matching.

 For example, the control information includes two pieces of information, which are first control information and second control information, where the original number of bits of the first control information is X, and the original number of bits of the second control information is Y, The number of bits that can be carried by the current transmission determined by the unit 81 is N, and the number of bits after the data rate matching of the first control information determined by the determining module 821 is: ceil{X* NI (X+Y) } or floor { X*NI (X+Y)}; and the number of bits after the data rate matching of the second control information determined by the determining module 821 is: N-ceil{X* NI (X+ Y) } or N-floor{ X*N / (X+Y)}.

 Preferably, the mapping unit 83 is specifically configured to:

 Transmitting, by the processing unit 82, the channel-coded and rate-matched data of each of the at least two pieces of information onto the data layer, such that data of each of the at least two pieces of information is distributed on all data layers. .

 Optionally, the mapping unit 83 is specifically configured to:

 Interleaving the data of each block of the at least two pieces of information by channel coding and rate matching by the processing unit 82;

 The data after the interleaving is sequentially mapped to each of the data layers, and the data layer is mapped to the next data layer after the data layer is full, so that the data corresponding to each piece of information is distributed on at least two data layers. .

 Optionally, the mapping unit 83 is specifically configured to:

 And each of the at least two pieces of information is channel-coded and rate-matched by the processing unit 82, and each piece of data in each group of data is mapped to a different data layer, so that each piece of information is Corresponding data is distributed on at least two data layers;

 Optionally, the mapping unit 83 is specifically configured to:

Each of the at least two pieces of information is channel coded by the processing unit 82 and The rate-matched data is grouped, and the grouped data is mapped to different data layers, so that the data corresponding to each piece of information is distributed on at least two of the data layers.

 Optionally, the mapping unit 83 is specifically configured to:

 Transmitting, by each of the at least two pieces of information, the channel coded by the processing unit 82 and the rate-matched data, respectively, to obtain a modulation symbol corresponding to the at least two pieces of information;

 The modulation symbols corresponding to each of the at least two pieces of information are mapped onto the data layer such that the modulation symbols corresponding to each piece of information are distributed on at least two data layers.

 At this time, preferably, the mapping unit 83 is specifically configured to: sequentially map the modulation symbols corresponding to each piece of the at least two pieces of information to all the data layers.

Corresponding to the embodiment of the method for receiving control information of the present invention, the present invention further provides a user equipment 100, as shown in FIG. 10, including:

 The receiving unit 101 is configured to receive control information transmitted by the base station, where the control information includes at least two pieces of information, and each of the at least two pieces of information is channel-coded and rate-matched, where the at least two pieces of information are Each piece of information is channel coded and the rate matched data is distributed over at least two data layers;

 The obtaining unit 102 is configured to obtain, according to the data layer layer that the base station transmits the control information, the control information received by the receiving unit 101, acquiring each block information of the at least two pieces of information, performing channel coding and rate matching. Post data

 The processing unit 103 is configured to perform channel coding and rate matching data on at least two pieces of information acquired by the obtaining unit 103 for de-rate matching and decoding, to obtain original data of the at least two pieces of information.

In the user equipment provided by the embodiment of the present invention, the base station maps the channel-coded and rate-matched data to at least two data layers, and uses the at least two data layers to carry data during transmission, which can greatly improve data bearer. Therefore, in one transmission, more control information can be transmitted, and the data transmission efficiency of the control information is greatly improved; and at least two pieces are simultaneously mapped by channel-coded and rate-matched data onto the data layer. Data corresponding to at least one piece of information in the information is distributed on the at least two data layers, and The data corresponding to one piece of information is only dependent on the channel condition of one data layer. The code rate of the information block is determined by the channel conditions of multiple data layers, and the average effect can be obtained, and the situation determined by the worst channel condition is avoided. The number of REs required as a whole is reduced, thereby increasing resource utilization.

 Optionally, the at least two pieces of information include uplink data transmission control information and downlink data transmission control information; or each of the at least two pieces of information corresponds to service data corresponding to one or a group of uplink/downlink component carriers. Control information.

 Optionally, the obtaining unit 102 is specifically configured to:

 And obtaining, according to the control information received by the receiving unit, the data layer layer of the control signal, and the pre-set, in the control information received by the receiving unit 101, acquiring the at least two pieces of information for channel coding and rate matching data;

 Or

 Determining, according to the number of data layer layers of the base station transmitting the control information, and the notification of the base station, the control information received by the receiving unit 101, acquiring the at least two pieces of information for channel coding and rate matching data;

 It should be noted that, preferably, each of the at least two pieces of information is channel-coded and rate-matched data is distributed on all data layers.

 In an embodiment of the present invention, each of the at least two pieces of information is modulated by channel coding and rate matching, and the modulation symbols modulated by each piece of information are distributed in the at least two On the data layer;

 At this time, the obtaining unit 102 is specifically configured to:

 Demodulating the control information received by the receiving unit 101 according to the number of data layer layers of the base station transmitting the control information;

 In the demodulated control information, each block information of the at least two pieces of information is obtained for channel coding and rate matching data.

 A person skilled in the art can understand that all or part of the steps in the method for implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium, and the storage medium can be Is a read-only memory, a disk or a disc, and so on.

The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is It is to be understood that those skilled in the art are susceptible to variations and substitutions within the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

A method for transmitting control information, comprising:

 Determining control information that needs to be transmitted, the control information includes at least two pieces of information; performing channel coding and performing rate matching on each of the at least two pieces of information;

 Mapping the channel-coded and rate-matched data of each of the at least two pieces of information to the data layer, so that data of at least one piece of the at least two pieces of information is distributed on at least two data layers;

 The data mapped to the data layer is transmitted.

 2. The method of claim 1 wherein

 The at least two pieces of information include uplink data transmission control information and downlink data transmission control information; or

 Each of the at least two pieces of information corresponds to control information corresponding to the service data on one or a group of uplink/downlink component carriers.

 The method according to claim 1, wherein the method further comprises: determining a number of bits that can be carried by the current transmission;

 Performing channel coding and rate matching on each of the at least two pieces of information includes:

 Channel coding each of the at least two pieces of information;

 Performing rate matching on the channel-coded data of each of the at least two pieces of information, and summing the number of bits of each block information of the at least two pieces of information after channel coding and performing rate matching is equal to the present The number of bits that a secondary transmission can carry.

The method according to claim 3, wherein the determining the number of bits that the current transmission can carry includes: Determining the number of physical resources used by the control information to be transmitted, the number of data layer layers, and a modulation mode;

 Determining, according to the number of data layer layers, the number of physical resources, and the modulation mode, the number of bits that can be carried by the current transmission;

 Performing rate matching on the channel-encoded data of each of the at least two pieces of information includes:

 Determining, according to the determined number of bits that can be carried by the current transmission, the number of bits after the data rate matching of each piece of information after channel coding;

 Performing rate matching on the channel-coded data rate according to the determined each piece of information, and performing rate matching on the channel-encoded data of each of the at least two pieces of information.

 5. The method of claim 4, wherein

 The control information includes two pieces of information, which are respectively the first control information and the second control information; the original number of bits of the first control information is X;

 The original number of bits of the second control information is Y;

 The number of bits that the current transmission can carry is N;

 The number of bits after the data rate matching of the first control information after channel coding is: ceil{X* N I (X+Y) } or floor{ X*N I (X+Y)}

 The number of bits after the data rate matching of the second control information after channel coding is: N-ceil{X* N I (X+Y) } or N-floor{ X*N I (X+Y)}

The method according to claim 1, wherein the channel-coded and rate-matched data of each of the at least two pieces of information is mapped onto the data layer, so that the at least two pieces are The data of at least one piece of information in the information is distributed on at least two data layers including: The channel-coded and rate-matched data of each of the at least two pieces of information is mapped onto the data layer such that data of each of the at least two pieces of information is distributed over all of the data layers.

 The method according to claim 1 or 6, wherein the channel-coded and rate-matched data of each of the at least two pieces of information is mapped onto the data layer, so that the at least The data of at least one piece of information in the two pieces of information is distributed on at least two data layers including:

 Channel-encoded and rate-matched data of each block of the at least two pieces of information;

 Mapping the interleaved data to each of the data layers, and after one data layer is full, mapping to the next data layer is started, so that the data corresponding to each piece of information is distributed on at least two data layers. .

 The method according to claim 1 or 6, wherein the channel-coded and rate-matched data of each of the at least two pieces of information is mapped onto the data layer, so that the at least The data of at least one piece of information in the two pieces of information is distributed on at least two data layers including:

 And performing channel-coded and rate-matched data on each of the at least two pieces of information, and mapping each data in each group of data to different data layers, so that the data corresponding to each piece of information is Distributed on the at least two data layers;

 Or

 And performing channel-coded and rate-matched data on each of the at least two pieces of information, and mapping the grouped data to different data layers, so that each piece of information corresponds to The data is distributed over at least two of said data layers.

The method according to claim 1 or 6, wherein the channel-coded and rate-matched data of each of the at least two pieces of information is mapped to a data layer, so that And distributing data of at least one piece of the at least two pieces of information on at least two data layers, including:

 And performing channel-coded and rate-matched data on each of the at least two pieces of information to obtain modulation symbols corresponding to the at least two pieces of information;

 And mapping modulation symbols corresponding to each piece of the at least two pieces of information onto the data layer, so that the modulation symbols corresponding to each piece of information are distributed on the at least two data layers.

 The method according to claim 9, wherein the mapping the modulation symbols corresponding to each piece of the at least two pieces of information to the data layer comprises:

 The modulation symbols corresponding to each of the at least two pieces of information are sequentially alternately mapped onto all of the data layers.

A method for receiving control information, comprising:

 Receiving control information transmitted by the base station, where the control information includes at least two pieces of information, each of the at least two pieces of information is separately subjected to channel coding and rate matching, and each of the at least two pieces of information is subjected to Channel coded and rate matched data is distributed over at least two data layers;

 And obtaining, according to the number of data layer layers of the control information by the base station, channel coding and rate matching data in each of the at least two pieces of information in the received control information;

 Channel coding and rate matching data of the at least two pieces of information are subjected to de-rate matching and decoding to obtain original data of the at least two pieces of information.

 12. The method of claim 11 wherein:

 The at least two pieces of information include uplink data transmission control information and downlink data transmission control information; or

Each of the at least two pieces of information corresponds to control information corresponding to service data on one or a group of uplink/downlink component carriers.

The method according to claim 11, wherein the obtaining, according to the number of layers of the data layer, the at least two pieces of information in the received control information for channel coding and rate matching The data includes:

 And obtaining, according to the number of data layer layers of the base station transmitting the control information, a data obtained by performing channel coding and rate matching on the at least two pieces of information in the received control information;

 Or

 And according to the number of data layer layers of the base station transmitting the control information and the notification of the base station, in the received control information, acquiring, by the at least two pieces of information, channel coding and rate matching data.

 14. The method according to claim 11, wherein the channel coding and rate matching data of each of the at least two pieces of information is distributed on all data layers.

 15. The method of claim 14 wherein:

 Each of the at least two pieces of information is modulated by channel coding and rate matching data, and the modulation symbols modulated by each piece of information are distributed on the at least two data layers;

 And the data obtained by acquiring the at least two pieces of information for channel coding and rate matching in the received control information, according to the data layer layer of the control information transmitted by the base station, includes:

 Demodulating the received control information according to the number of data layer layers of the base station transmitting the control information;

 In the demodulated control information, each block of the at least two pieces of information is obtained for channel coding and rate matching data.

16. A base station, comprising: a determining unit, configured to determine control information that needs to be transmitted, where the control information includes at least two pieces of information;

 a processing unit, configured to perform channel coding and rate matching on each of at least two pieces of information in the control information determined by the determining unit;

 a mapping unit, configured to map, by the processing unit, channel-coded and rate-matched data of each block information of the at least two pieces of information to a data layer, so that data of at least one piece of the at least two pieces of information Distributed on the at least two data layers;

 And a transmission unit, configured to transmit data mapped by the mapping unit to the data layer.

17. The base station according to claim 16, wherein:

 The at least two pieces of information include uplink data transmission control information and downlink data transmission control information; or

 Each of the at least two pieces of information corresponds to control information corresponding to the service data on one or a group of uplink/downlink component carriers.

 18. The base station according to claim 17, wherein:

 The determining unit is further configured to determine a number of bits that the current transmission can carry;

 The processing unit is specifically configured to:

 And performing channel coding on each of at least two pieces of information in the control information determined by the determining unit;

 Performing rate matching on the channel-coded data of each of the at least two pieces of information in the control information determined by the determining unit, and each block of the at least two pieces of information is channel-coded and rate matched The sum of the number of bits afterwards is equal to the number of bits that can be carried by this transmission.

 The base station according to claim 18, wherein the determining unit is specifically configured to:

Determining the number of physical resources used by the control information to be transmitted, the number of data layer layers, and a modulation mode; Determining, according to the number of data layer layers, the number of physical resources, and the modulation mode, the number of bits that can be carried by the current transmission;

 The processing unit further includes:

 a determining module, configured to determine, according to the number of bits that can be carried by the current transmission determined by the determining unit, the number of bits after the data rate matching of each piece of information is channel-coded;

 a rate matching module, configured to perform, according to each block information determined by the determining module, a number of bits after data coding after channel coding, and perform channel coded data on each piece of the at least two pieces of information. Rate matching.

 20. The base station according to claim 19, wherein:

 The control information includes two pieces of information, which are respectively the first control information and the second control information; the original number of bits of the first control information is X;

 The original number of bits of the second control information is Y;

 The number of bits that the current transmission can be carried by the determining unit is N,

 The number of bits after the data rate matching by the first control information determined by the determining module is: ceil{X* N / (X+Y) } or floor{ X*N / (X+Y) } ;

 The number of bits after the data rate matching of the second control information determined by the determining module is: N-ceil{X* NI (X+Y) } or N-floor{ X*NI (X+ Y)}.

 The base station according to claim 16, wherein the mapping unit is specifically configured to:

 Mapping, by each of the at least two pieces of information, channel coding and rate matching data by the processing unit to the data layer, so that data of each piece of the at least two pieces of information is distributed in all data layers on.

 The base station according to claim 16 or 21, wherein the mapping unit is specifically configured to:

Performing interleaving on the block-coded and rate-matched data of each block information of the at least two pieces of information by the processing unit; Mapping the interleaved data to each of the data layers, and after one data layer is full, mapping to the next data layer is started, so that data corresponding to each piece of information is distributed in the at least two data. On the floor.

 The base station according to claim 16 or 21, wherein the mapping unit is specifically configured to:

 And each of the at least two pieces of information is channel-coded and rate-matched by the processing unit, and each piece of data in each group of data is mapped to a different data layer, so that each piece is Data corresponding to the information is distributed on the at least two data layers; or

 And each of the at least two pieces of information is channel-coded and rate-matched by the processing unit, and the grouped data is mapped to different data layers, so that each The data corresponding to one piece of information is distributed over at least two of said data layers.

 The base station according to claim 16 or 21, wherein the mapping unit is specifically configured to:

 Modulating, by the processing unit, channel coding and rate matching data, each of the at least two pieces of information, to obtain a modulation symbol corresponding to the at least two pieces of information; The modulation symbols corresponding to each piece of information are mapped onto the data layer such that the modulation symbols corresponding to each piece of information are distributed on the at least two data layers.

 The base station according to claim 24, wherein the mapping unit is specifically configured to:

 The modulation symbols corresponding to each of the at least two pieces of information are sequentially alternately mapped onto all of the data layers.

26. A user equipment, comprising:

a receiving unit, configured to receive control information transmitted by the base station, where the control information includes at least two pieces of information, and each of the at least two pieces of information performs channel coding and rate matching Arranging, each of the at least two pieces of information is channel-coded and the rate-matched data is distributed on at least two data layers;

 An acquiring unit, configured to acquire, according to the data layer layer of the control information by the base station, each piece of the at least two pieces of information in the control information received by the receiving unit, performing channel coding and rate matching Post data

 And a processing unit, configured to perform channel coding and rate matching data on the at least two pieces of information acquired by the acquiring unit to perform rate decoding and decoding, to obtain original data of the at least two pieces of information.

 27. The user equipment of claim 26, wherein

 The at least two pieces of information include uplink data transmission control information and downlink data transmission control information; or

 Each of the at least two pieces of information corresponds to control information corresponding to the service data on one or a group of uplink/downlink component carriers.

 The user equipment according to claim 26, wherein the acquiring unit is specifically configured to:

 And obtaining, according to the number of data layer layers of the control information that the base station transmits the control information, in the control information received by the receiving unit, acquiring data of the at least two pieces of information for channel coding and rate matching;

 Or

 Determining, according to the number of data layer layers of the base station that the control information is transmitted, and the notification of the base station, the control information received by the receiving unit, acquiring the at least two pieces of information for channel coding and rate matching data;

The user equipment according to claim 26, wherein the channel coding and rate matching data of each of the at least two pieces of information is distributed on all data layers.

The user equipment according to claim 29, wherein each of the at least two pieces of information is modulated by channel coding and rate matching, and the modulation of each piece of information is modulated. Symbols are distributed on the at least two data layers;

 The obtaining unit is specifically configured to:

 Demodulating the control information received by the receiving unit according to the number of data layer layers of the base station transmitting the control information;

 In the demodulated control information, each block of the at least two pieces of information is obtained for channel coding and rate matching data.