JP6789348B2 - Methods for transmitting control information, user equipment, and base stations - Google Patents

Description

Examples of the present invention relate to communication technology, and more specifically to methods for transmitting control information, user equipment, and base stations.

Long Term Evolution (LTE for short) is a universal mobile communication system (Universal Mobile System System) technology designated by the 3rd Generation Partnership Project (3GPP) organization. It is a long term evolution of. With the introduction of key technologies such as Orthogonal Frequency Division Multiplexing (OFDM for short) and Multi-Input Multi-Output (MIMO for short), long-term evolution has become spectrally efficient. And have significantly increased data transmission speeds, and are therefore widely developed in recent years.

The LTE system includes orthogonal frequency division multiple access (Orthogonal Frequency Division Accession Access, abbreviated as OFDMA) and single carrier frequency division multiple access (Single Carrier Frequency Division Access Technology) for downlink and uplink, respectively. Based on. Time-frequency resources are divided into OFDM or SC-FDMA symbols (hereinafter referred to as time-domain symbols) in the time domain range, and subcarriers in the frequency domain range. The minimum resource particle size is called the Resource Element (RE for short), which is the time-frequency formed by one time-domain symbol in the time domain and one subcarrier in the frequency domain. Represents a grid. In the LTE system, service transmission is based on scheduling by a base station (Evolved NodeB, abbreviated as eNB), and the basic time unit of scheduling is one subframe, and one subframe is a plurality of time-domains. Includes symbols. The specific scheduling process is as follows. The base station transmits a control channel such as a physical downlink control channel (Physical Downlink Control Channel, abbreviated as PDCCH) or an extended physical downlink control channel (Enhanced PDCCH, abbreviated as EPDCCH). The control channel can carry the scheduling information of the physical downlink shared channel (Physical Downlink Shared Channel, abbreviated as PDSCH) or the physical uplink shared channel (Physical Uplink Shared Channel, abbreviated as PUSCH), and the scheduling information is a resource. Includes allocation information or control information such as modulation and coding schemes. The user equipment (User Equipment, or UE for short) detects the control channel in the subframe and either receives the downlink data channel or receives the uplink data channel according to the scheduling information carried by the detected control channel. To send.

LTE supports two dual modes: Frequency Division Duplex (FDD for short) and Time Division Duplex (TDD for short). In the case of FDD, downlink and uplink transmissions are carried out on different carriers. For TDD systems, uplink and downlink transmissions are performed at different times on the same carrier. Specifically, one carrier includes downlink subframes, uplink subframes, and special subframes. LTE currently supports seven different TDD uplink-downlink configurations.

In LTE, a hybrid automatic repeat request (HARQ for short) mechanism is used to implement error detection and correction functions. For example, in the downlink, if the UE receives the PDSCH and then the PDSCH is received correctly, the UE feeds back an acknowledgment (ACKnowedgement, ACK for short) on the PUCCH, or the PDSCH is received incorrectly. In this case, the UE feeds back a negative response (NACKnowledge, NACK for short) on the PUCCH. LTE further supports Carrier Aggregation (CA for short) technology, i.e., base stations configure multiple carriers for one UE to improve the data rate of the UE. During CA, the plurality of carriers transmitted by the base station are transmitted synchronously in terms of time. The UE can separately detect the PDCCH that schedules each carrier and the corresponding PDSCH. The specific detection process for each carrier is similar to the detection process for a single carrier described above. The LTE system supports FDD CA, TDD CA, and FDD + TDD CA. TDD CAs are further classified into TDD CAs with the same uplink-downlink configuration and TDD CAs with different uplink-downlink configurations. In CA mode, there is one primary component carrier and at least one secondary component carrier, and the PUCCH carrying the ACK / NACK is transmitted only on the primary component carrier of the UE. Joint coding is commonly used when HARQ-ACK of multiple downlink carriers is transmitted over one PUCCH channel or PUSCH channel. In LTE systems, uplink control signaling has two main coding techniques. One is a linear block code such as Reed Muller (RM for short), and the other is a convolutional code. Regardless of which coding method is used, in a common decoding method, before the decoding is performed accurately, the base station is the total number of original information bits for the joint coding performed by the user equipment. Need to know.

Generally, the UE calculates the total number of source information bits for the joint coding of HARQ-ACK according to the amount of PDSCH detected on the downlink carrier. In this case, once the UE misses the PDSCH on the downlink carrier during detection, the amount of carriers having the PDSCH understood by the UE is less than the actual amount of eNB carriers transmitting the PDSCH. The UE feeds back HARQ-ACK regarding the PDSCH detected by the UE itself. However, the eNB is unaware of whether detection omissions occur in the UE and the amount of PDSCH missed. As a result, the base station cannot accurately decode the HARQ-ACK fed back by the UE.

In the embodiment of the present invention, control information is provided in order to solve the problem that the base station cannot accurately decode the response message of the hybrid automatic repeat request fed back by the user equipment due to the detection omission in the user equipment. Provide methods, user equipment, and base stations for transmission.

According to the first aspect, the embodiment of the present invention provides a user device, and the user device is a user device.
A receiving module configured to receive at least one first downlink control information transmitted by a base station, each first downlink control information carrying a downlink allocation index and at least. A receiving module, in which one first downlink control information further carries the total number of downlink allocation indexes.
The response message of the hybrid automatic repeat request is according to the total number of downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink sharing channel corresponding to each first downlink control information. Processing modules configured to generate and
Includes a transmit module configured to transmit the response message of the hybrid automatic repeat request to the base station.
Each downlink allocation index is used to indicate the index of the physical downlink shared channel that corresponds to the downlink control information that carries the downlink allocation index, or is the physical that directs the downlink quasi-persistent scheduling release. Physical downlink shared channels that correspond to downlink control information that is used to direct the index of the downlink control channel or that carries the downlink allocation index, and physical downlink that directs the downlink quasi-persistent scheduling release. Used to indicate the control channel index, the total number of downlink allocation indexes is the amount of physical downlink shared channels corresponding to all downlink control information, or the physical downlink to indicate the downlink quasi-persistent scheduling release. The amount of control channels, or the total amount of physical downlink shared channels that correspond to all downlink control information, and the amount of physical downlink control channels that direct the downlink quasi-persistent scheduling release.

With respect to the first aspect, in the first possible implementation of the first aspect, the processing module sends a response message of the hybrid automatic repeat request to the total number of downlink allocation indexes, respectively, of the first downlink control information. It is configured to generate according to the downlink allocation index and the physical downlink shared channel corresponding to each first downlink control information.
The response information for the physical downlink sharing channel corresponding to each first downlink control information is generated separately according to whether the physical downlink sharing channel corresponding to each first downlink control information is correctly decoded. To do and
The sort result is obtained by sorting the downlink allocation index of all the first downlink control information, and the second downlink control information is determined according to the sort result and the total number of the downlink allocation index, and the second. It is to acquire the downlink allocation index of the downlink control information of the above, and here, the response information to the physical downlink shared channel corresponding to the second downlink control information is the negative response NACK.
The response message of the hybrid automatic retransmission request is according to the response information for the physical downlink shared channel corresponding to the first downlink control information and the response information for the physical downlink shared channel corresponding to the second downlink control information. It is to generate, here, the response information to the physical downlink shared channel corresponding to the first downlink control information, and the response information to the physical downlink shared channel corresponding to the second downlink control information. The order of arrangement is the same as the order of the downlink allocation index of the first downlink control information and the downlink allocation index of the second downlink control information, and the first downlink control information of each The response information for the corresponding physical downlink shared channel and the response information for the physical downlink shared channel corresponding to the second downlink control information are included in the response message of the hybrid automatic retransmission request.

With respect to the first possible implementation of the first aspect or the first aspect, in the second possible implementation of the first aspect, the receiving module is at least one first down transmitted by the base station. Each first downlink control information is configured to receive link control information, and at least one first downlink control information further adds to the total number of downlink allocation indexes. To carry
A threshold for the first carrier amount is set, at least one first downlink control information transmitted by the base station is received, and a downlink allocation index of each first downlink control information is acquired. To do and
When the number of carriers corresponding to the first downlink control information is larger than the threshold value of the first carrier amount, the total number of downlink allocation indexes in the transmission power control TPC field in the first downlink control information is calculated. Including to get.

With respect to any one of the first or second possible implementations of the first aspect or the first aspect, in the third possible implementation of the first aspect, the receiving module
Further configured to receive the amount of configured carriers transmitted by the base station,
The transmission module is configured to send the response message of the hybrid automatic repeat request to the base station.
If the amount of carriers configured is greater than the first threshold, a response message for the hybrid automatic repeat request is sent to the base station by using physical uplink control channel format 4 or configured. When the amount of carriers is less than or equal to the first threshold, the response message of the hybrid automatic repeat request is transmitted to the base station by using the physical uplink control channel format 3.

With respect to any one of the first or second possible implementations of the first aspect or the first aspect, in the fourth possible implementation of the first aspect, the receiving module
Further configured to obtain a bit amount threshold for the response message of a hybrid automatic repeat request supported on a predefined physical uplink control channel.
The transmission module is configured to send the response message of the hybrid automatic repeat request to the base station.
If the total number of downlink allocation indexes is greater than the bit amount threshold of the response message of the hybrid automatic repeat request supported on the physical uplink control channel, the response message of the hybrid automatic request is physically uploaded to the base station. The total number of downlink allocation indexes sent by using link control channel format 4 is less than or equal to the bit amount threshold of the response message of the hybrid automatic repeat request supported on the physical uplink control channel. In this case, the response message of the hybrid automatic repeat request is transmitted to the base station by using the physical uplink control channel format 3.

With respect to any one of the second to fourth possible implementations of the first aspect, in the fifth possible implementation of the first aspect, the number of carriers is the threshold for the first carrier amount. If there are multiple first downlink control information corresponding to a larger carrier
The receiving module is configured to obtain the total number of downlink allocation indexes in the transmit power control TPC field in the first downlink control information.
Obtain the total number of downlink allocation indexes in the TPC field in some of the first downlink control information, or of PUCCH format 4 in the TPC field in some of the first downlink control information. Includes getting resource indicators.

With respect to the fifth possible implementation of the first aspect, in the sixth possible implementation of the first aspect, the receiving module is down in the TPC field in some of the first downlink control information. It is configured to get the total number of link allocation indexes or to get the PUCCH format 4 resource index in the TPC field in some of the first downlink control information.
The number of carriers corresponding to the first downlink control information is larger than the threshold value of the first carrier amount, and the parity of the number of carriers corresponding to the first downlink control information is the first carrier amount. If it is the same as the parity of the threshold value of, the total number of downlink allocation indexes in the TPC field in the first downlink control information is acquired, or the carrier of the carrier corresponding to the first downlink control information is acquired. When the number is larger than the threshold value of the first carrier amount and the parity of the number of carriers corresponding to the first downlink control information is different from the parity of the threshold value of the first carrier amount, the first Includes acquiring the PUCCH format 4 resource index in the TPC field in the downlink control information of.

With respect to the first possible implementation of the first aspect or the first aspect, in the seventh possible implementation of the first aspect, the receiving module has at least one first down transmitted by the base station. Each first downlink control information is configured to receive link control information, and at least one first downlink control information further adds to the total number of downlink allocation indexes. To carry
To set a second threshold, receive at least one first downlink control information transmitted by the base station, and obtain a downlink allocation index for each first downlink control information. ,
When the downlink allocation index of the downlink control information is larger than the second threshold value, the total number of downlink allocation indexes in the TPC field in the first downlink control information corresponding to the downlink allocation index is acquired. including.

Regarding the seventh possible implementation of the first aspect, in the eighth possible implementation of the first aspect, the plurality of first downlink control information whose downlink allocation index is larger than the second threshold value. If exists,
The receiving module is configured to get the total number of downlink allocation indexes in the TPC field in the first downlink control information corresponding to the downlink allocation index.
Obtain the total number of downlink allocation indexes in the TPC field in some of the first downlink control information, or of PUCCH format 4 in the TPC field in some of the first downlink control information. Includes getting resource indicators.

With respect to the eighth possible implementation of the first aspect, in the ninth possible implementation of the first aspect, the receiving module is down in the TPC field in some of the first downlink control information. It is configured to get the total number of link allocation indexes or to get the PUCCH format 4 resource index in the TPC field in some of the first downlink control information.
When the downlink allocation index of the first downlink control information is larger than the second threshold value and the parity of the downlink allocation index is the same as the parity of the second threshold value, the first downlink control The total number of downlink allocation indexes in the TPC field in the information is acquired, or the downlink allocation index of the first downlink control information is larger than the second threshold value, and the parity of the downlink allocation index is the second. When different from the parity of the threshold value of 2, the acquisition of the resource index of PUCCH format 4 in the TPC field in the first downlink control information is included.

With respect to the first possible implementation of the first aspect or the first aspect, in the tenth possible implementation of the first aspect, the receiving module is at least one first down transmitted by the base station. Each first downlink control information is configured to receive link control information, and at least one first downlink control information further adds to the total number of downlink allocation indexes. To carry
Receives at least one first downlink control information transmitted by the base station, acquires the downlink allocation index of each first downlink control information, and downloads in each first downlink control information. Includes getting the total number of downlink allocation indexes in the Total Link Allocation Index field.

With respect to the first possible implementation of the first aspect or the first aspect, in the eleventh possible implementation of the first aspect, the receiving module is at least one first down transmitted by the base station. Each first downlink control information is configured to receive link control information, and at least one first downlink control information further adds to the total number of downlink allocation indexes. To carry
The first downlink control information transmitted by the base station is received, the downlink allocation index of each first downlink control information is acquired, and the first downlink control information is carried by the primary component carrier. Includes getting the total number of downlink allocation indexes in the total number of downlink allocation indexes field in the downlink control information.

With respect to the first possible implementation of the first aspect or the first aspect, in the twelfth possible implementation of the first aspect, the receiving module is at least one first down transmitted by the base station. Each first downlink control information is configured to receive link control information, and at least one first downlink control information further adds to the total number of downlink allocation indexes. To carry
Receiving at least one first downlink control information transmitted by the base station and
When the special scrambling process is performed on the cyclic redundancy check CRC code of the first downlink control information, the descramble processing is performed on the first downlink control information and the total number of downlink allocation indexes. , And to acquire the downlink allocation index of the first downlink control information.

According to the second aspect, an embodiment of the present invention provides a base station, which is a base station.
A transmission module configured to transmit at least one downlink control information to a user device, where each downlink control information carries a downlink allocation index and at least one downlink control information is down. A transmit module that further carries the total number of link allocation indexes,
Hybrid automatic repeat transmitted by user equipment according to the total number of downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink sharing channel corresponding to each first downlink control information. A receiving module configured to receive request response messages, and
Includes a processing module configured to acquire response information for the physical downlink shared channel corresponding to each downlink control information according to the response message of the hybrid automatic repeat request.
The downlink control information includes a first downlink control information and a second downlink control information, and each downlink allocation index is a physical downlink sharing corresponding to the downlink control information carrying the downlink allocation index. A downlink that is used to indicate the index of a channel, or is used to indicate an index of a physical downlink control channel that directs a downlink quasi-persistent scheduling release, or carries a downlink allocation index. Used to indicate the index of the physical downlink shared channel that corresponds to the control information, and the physical downlink control channel that directs the downlink quasi-persistent scheduling release, the total number of downlink allocation indexes is all downlink control information. The amount of physical downlink shared channels that correspond to, or the amount of physical downlink control channels that direct a downlink quasi-persistent scheduling release, or the amount of physical downlink shared channels and downlink quasi that correspond to all downlink control information. Persistent scheduling The sum of the amount of physical downlink control channels that direct the release.

With respect to the second aspect, in the first possible implementation of the second aspect, the transmit module is configured to transmit at least one downlink control information to the user equipment, and each downlink control information is It is possible that the downlink allocation index is carried and at least one downlink control information further carries the total number of downlink allocation indexes.
To set the downlink allocation index of each downlink control information separately for each downlink control information,
When the number of carriers corresponding to the downlink control information is larger than the threshold value of the first carrier amount, the total number of downlink allocation indexes is set in the transmission power control TPC field in the downlink control information.
Includes transmitting at least one downlink control information to the user equipment.

With respect to the first possible implementation of the second aspect, in the second possible implementation of the second aspect, a plurality of downlinks corresponding to carriers in which the number of carriers is greater than the threshold of the first carrier amount. If control information is present
It is possible that the transmit module is configured to set the total number of downlink allocation indexes in the transmit power control TPC field in the downlink control information.
Set the total number of downlink allocation indexes to the TPC field in some of the downlink control information, or set the resource index of the physical uplink control channel PUCCH format 4 to the TPC field in some of the downlink control information. Including setting.

With respect to the second possible implementation of the second aspect, in the third possible implementation of the second aspect, the transmit module sets the total number of downlink allocation indexes to the TPC in some of the downlink control information. Setting the field or setting the resource index of the physical uplink control channel PUCCH format 4 to the TPC field in some of the downlink control information can be configured.
The number of carriers corresponding to the downlink control information is larger than the threshold value of the first carrier amount, and the parity of the number of carriers corresponding to the downlink control information is the parity of the threshold value of the first carrier amount. If the total number of downlink allocation indexes is set in the TPC field in the downlink control information, or the number of carriers corresponding to the downlink control information is larger than the threshold value of the first carrier amount. If the parity of the number of carriers corresponding to the downlink control information is different from the parity of the threshold value of the first carrier amount, the resource index of PUCCH format 4 is set in the TPC field in the downlink control information. including.

With respect to the second aspect, in the fourth possible implementation of the second aspect, the transmit module is configured to transmit at least one downlink control information to the user equipment, and each downlink control information is It is possible that the downlink allocation index is carried and at least one downlink control information further carries the total number of downlink allocation indexes.
To set the downlink allocation index of each downlink control information separately for each downlink control information,
If the downlink allocation index of the downlink control information is greater than the second threshold, set the total number of downlink allocation indexes in the TPC field in the downlink control information.
Includes transmitting at least one downlink control information to the user equipment.

Regarding the fourth possible implementation of the second aspect, in the fifth possible implementation of the second aspect, there is a plurality of downlink control information whose downlink allocation index is larger than the second threshold value. If
It is possible that the transmit module is configured to set the total number of downlink allocation indexes in the TPC field in the downlink control information.
Includes setting the total number of downlink allocation indexes in the TPC field in some of the downlink control information, or setting the resource index of PUCCH format 4 in the TPC field in some of the downlink control information. ..

With respect to the fifth possible implementation of the second aspect, in the sixth possible implementation of the second aspect, the transmit module sets the total number of downlink allocation indexes to the TPC in some of the downlink control information. Setting the field or setting the PUCCH format 4 resource index to the TPC field in some of the downlink control information can be configured.
If the downlink allocation index of the downlink control information is larger than the second threshold value and the parity of the downlink allocation index is the same as the parity of the second threshold value, the total number of downlink allocation indexes is downlinked. Set in the TPC field in the control information, or the downlink allocation index of the downlink control information is larger than the second threshold value, and the parity of the downlink allocation index is different from the parity of the second threshold value. In the case, the resource index of PUCCH format 4 is set in the TPC field in the downlink control information.

With respect to the second aspect, in the seventh possible implementation of the second aspect, the transmit module is configured to transmit at least one downlink control information to the user equipment, and each downlink control information is It is possible that the downlink allocation index is carried and at least one downlink control information further carries the total number of downlink allocation indexes.
The downlink allocation index of each downlink control information is set separately for each downlink control information, the total number of downlink allocation indexes is set in the total number field of the downlink allocation index in each downlink control information, and Includes transmitting at least one downlink control information to the user equipment.

With respect to the second aspect, in the eighth possible implementation of the second aspect, the transmit module is configured to transmit at least one downlink control information to the user equipment, and each downlink control information is It is possible that the downlink allocation index is carried and at least one downlink control information further carries the total number of downlink allocation indexes.
The downlink allocation index of each downlink control information is set separately for each downlink control information, and the total number of downlink allocation indexes is the total number of downlink allocation indexes in the downlink control information carried by the primary component carrier. Includes setting in the field and transmitting at least one downlink control information to the user equipment.

With respect to the second aspect, in the ninth possible implementation of the second aspect, the transmit module is configured to transmit at least one downlink control information to the user equipment, and each downlink control information is It is possible that the downlink allocation index is carried and at least one downlink control information further carries the total number of downlink allocation indexes.
The total number of downlink allocation indexes is set to at least one downlink control information, and special scrambling processing is performed on the cyclic redundancy check CRC code of the downlink control information that carries the total number of downlink allocation indexes. To get scrambled downlink control information,
Including transmitting scrambled downlink control information and downlink control information that is not scrambled to the user device.
Both the scrambled downlink control information and the downlink control information that is not scrambled carry the downlink allocation index.

With respect to any one of the first to ninth possible implementations of the second aspect or the second aspect, in the tenth possible implementation of the second aspect, by the total number of downlink allocation indexes. If the amount of occupied bits is less than 5 bits, the total number of downlink allocated indexes acquires the amount of state corresponding to the amount of occupied bits, and the state corresponding to the total number of downlink allocated indexes is the state. Obtained by taking the remainder of the total number of downlink allocation indexes divided by the quantity, the total number of downlink allocation indexes is represented by using the state corresponding to the total number of downlink allocation indexes.

According to a third aspect, embodiments of the present invention provide a method for transmitting control information.
A step of receiving at least one first downlink control information transmitted by a base station, each first downlink control information carrying a downlink allocation index and at least one first downlink. The step and the link control information further carries the total number of downlink allocation indexes.
The response message of the hybrid automatic repeat request is according to the total number of downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink sharing channel corresponding to each first downlink control information. Steps to generate and
Including the step of sending the response message of the hybrid automatic repeat request to the base station.
Each downlink allocation index is used to indicate the index of the physical downlink shared channel that corresponds to the downlink control information that carries the downlink allocation index, or is the physical that directs the downlink quasi-persistent scheduling release. Physical downlink shared channels that correspond to downlink control information that is used to direct the index of the downlink control channel or that carries the downlink allocation index, and physical downlink that directs the downlink quasi-persistent scheduling release. Used to indicate the control channel index, the total number of downlink allocation indexes is the amount of physical downlink shared channels corresponding to all downlink control information, or the physical downlink to indicate the downlink quasi-persistent scheduling release. The amount of control channels, or the total amount of physical downlink shared channels that correspond to all downlink control information, and the amount of physical downlink control channels that direct the downlink quasi-persistent scheduling release.

With respect to the third aspect, in the first possible implementation of the third aspect, the response message of the hybrid automatic repeat request is the total number of downlink allocation indexes, the downlink allocation index of each first downlink control information. , And the steps generated according to the physical downlink shared channel corresponding to each first downlink control information.
The response information for the physical downlink sharing channel corresponding to each first downlink control information is generated separately according to whether the physical downlink sharing channel corresponding to each first downlink control information is correctly decoded. Steps to do and
The sort result is obtained by sorting the downlink allocation index of all the first downlink control information, and the second downlink control information is determined according to the sort result and the total number of the downlink allocation index, and the second. In the step of acquiring the downlink allocation index of the downlink control information of the above, the response information to the physical downlink shared channel corresponding to the second downlink control information is the negative response NACK.
The response message of the hybrid automatic retransmission request is according to the response information for the physical downlink shared channel corresponding to the first downlink control information and the response information for the physical downlink shared channel corresponding to the second downlink control information. In the step of generation, the arrangement order of the response information for the physical downlink shared channel corresponding to each first downlink control information and the response information for the physical downlink shared channel corresponding to the second downlink control information. Is the same order as the downlink allocation index of the first downlink control information and the downlink allocation index of the second downlink control information, and the physical corresponding to each first downlink control information. The response information for the downlink shared channel and the response information for the physical downlink shared channel corresponding to the second downlink control information include a step in the response message of the hybrid automatic retransmission request.

With respect to the first possible implementation of the third aspect or the third aspect, in the second possible implementation of the third aspect, at least one first downlink control information transmitted by the base station. A step of receiving, where each first downlink control information carries the downlink allocation index, and at least one first downlink control information further carries the total number of downlink allocation indexes. Is
A threshold for the first carrier amount is set, at least one first downlink control information transmitted by the base station is received, and a downlink allocation index of each first downlink control information is acquired. Steps to do and
When the number of carriers corresponding to the first downlink control information is larger than the threshold value of the first carrier amount, the total number of downlink allocation indexes in the transmission power control TPC field in the first downlink control information is calculated. Includes steps to get.

With respect to any one of the first or second possible implementations of the third aspect or the third aspect, in the third possible implementation of the third aspect, the method is:
Further including the step of receiving the amount of configured carriers transmitted by the base station,
The step of sending the response message of the hybrid automatic repeat request to the base station is
If the amount of carriers configured is greater than the first threshold, a response message for the hybrid automatic repeat request is sent to the base station by using physical uplink control channel format 4 or configured. If the amount of carriers is less than or equal to the first threshold, it comprises transmitting a response message of the hybrid automatic repeat request to the base station by using the physical uplink control channel format 3.

With respect to any one of the first or second possible implementations of the third aspect or the third aspect, in the fourth possible implementation of the third aspect, the method is:
It further includes the step of obtaining the bit amount threshold of the response message of the hybrid automatic repeat request supported on the predefined physical uplink control channel.
The step of sending the response message of the hybrid automatic repeat request to the base station is
If the total number of downlink allocation indexes is greater than the bit amount threshold of the response message of the hybrid automatic repeat request supported on the physical uplink control channel, the response message of the hybrid automatic request is physically uploaded to the base station. The total number of downlink allocation indexes sent by using link control channel format 4 is less than or equal to the bit amount threshold of the response message of the hybrid automatic repeat request supported on the physical uplink control channel. In this case, the response message of the hybrid automatic repeat request is transmitted to the base station by using the physical uplink control channel format 3.

With respect to any one of the second to fourth possible implementations of the third aspect, in the fifth possible implementation of the third aspect, the number of carriers is the threshold for the first carrier amount. If there are multiple first downlink control information corresponding to a larger carrier
The step of acquiring the total number of downlink allocation indexes in the transmission power control TPC field in the first downlink control information is
Obtain the total number of downlink allocation indexes in the TPC field in some of the first downlink control information, or of PUCCH format 4 in the TPC field in some of the first downlink control information. Includes steps to get resource indicators.

With respect to the fifth possible implementation of the third aspect, in the sixth possible implementation of the third aspect, the downlink allocation index in the TPC field in some of the first downlink control information. The step of obtaining the total number or the resource index of PUCCH format 4 in the TPC field in some of the first downlink control information is
The number of carriers corresponding to the first downlink control information is larger than the threshold value of the first carrier amount, and the parity of the number of carriers corresponding to the first downlink control information is the first carrier amount. If it is the same as the parity of the threshold value of, the total number of downlink allocation indexes in the TPC field in the first downlink control information is acquired, or the carrier of the carrier corresponding to the first downlink control information is acquired. When the number is larger than the threshold value of the first carrier amount and the parity of the carrier number of the carriers corresponding to the first downlink control information is different from the parity of the threshold value of the first carrier amount, the first Including the step of acquiring the resource index of PUCCH format 4 in the TPC field in the downlink control information of.

With respect to the first possible implementation of the third aspect or the third aspect, in the seventh possible implementation of the third aspect, at least one first downlink control information transmitted by the base station. A step of receiving, where each first downlink control information carries the downlink allocation index, and at least one first downlink control information further carries the total number of downlink allocation indexes. Is
A step of setting a second threshold value, receiving at least one first downlink control information transmitted by the base station, and acquiring a downlink allocation index of each first downlink control information. ,
When the downlink allocation index of the downlink control information is larger than the second threshold value, the step of acquiring the total number of downlink allocation indexes in the TPC field in the first downlink control information corresponding to the downlink allocation index. including.

With respect to the seventh possible implementation of the third aspect, in the eighth possible implementation of the third aspect, a plurality of first downlink control information whose downlink allocation index is larger than the second threshold value. If exists,
The step of acquiring the total number of downlink allocation indexes in the TPC field in the first downlink control information corresponding to the downlink allocation index is
Obtain the total number of downlink allocation indexes in the TPC field in some of the first downlink control information, or of PUCCH format 4 in the TPC field in some of the first downlink control information. Includes steps to get resource indicators.

With respect to the eighth possible implementation of the third aspect, in the ninth possible implementation of the third aspect, the downlink allocation index in the TPC field in some of the first downlink control information. The step of obtaining the total number or the resource index of PUCCH format 4 in the TPC field in some of the first downlink control information is
When the downlink allocation index of the first downlink control information is larger than the second threshold value and the parity of the downlink allocation index is the same as the parity of the second threshold value, the first downlink control The total number of downlink allocation indexes in the TPC field in the information is acquired, or the downlink allocation index of the first downlink control information is larger than the second threshold value, and the parity of the downlink allocation index is the second. When different from the parity of the threshold value of 2, the step of acquiring the resource index of PUCCH format 4 in the TPC field in the first downlink control information is included.

With respect to the first possible implementation of the third aspect or the third aspect, in the tenth possible implementation of the third aspect, at least one first downlink control information transmitted by the base station. A step of receiving, where each first downlink control information carries the downlink allocation index, and at least one first downlink control information further carries the total number of downlink allocation indexes. Is
Receives at least one first downlink control information transmitted by the base station, acquires the downlink allocation index of each first downlink control information, and downloads in each first downlink control information. Includes a step to get the total number of downlink allocation indexes in the Total Link Allocation Index field.

With respect to the first possible implementation of the third aspect or the third aspect, in the eleventh possible implementation of the third aspect, at least one first downlink control information transmitted by the base station. A step of receiving, where each first downlink control information carries the downlink allocation index, and at least one first downlink control information further carries the total number of downlink allocation indexes. Is
The first downlink control information transmitted by the base station is received, the downlink allocation index of each first downlink control information is acquired, and the first downlink control information is carried by the primary component carrier. Includes a step to get the total number of downlink allocation indexes in the Total Downlink Allocation Index field in the downlink control information.

With respect to the first possible implementation of the third aspect or the third aspect, in the twelfth possible implementation of the third aspect, at least one first downlink control information transmitted by the base station. A step of receiving, where each first downlink control information carries the downlink allocation index, and at least one first downlink control information further carries the total number of downlink allocation indexes. Is
The step of receiving at least one first downlink control information transmitted by the base station, and
When the special scrambling process is performed on the cyclic redundancy check CRC code of the first downlink control information, the descramble processing is performed on the first downlink control information and the total number of downlink allocation indexes. , And the step of acquiring the downlink allocation index of the first downlink control information.

According to a fourth aspect, embodiments of the present invention provide a method for transmitting control information.
In the step of transmitting at least one downlink control information to the user equipment, each downlink control information carries a downlink allocation index, and at least one downlink control information carries out the total number of downlink allocation indexes. Further transport, steps and
Hybrid automatic repeats transmitted by user equipment according to the total number of downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink shared channel corresponding to each first downlink control information. The steps to receive the request response message and
Including the step of acquiring the response information for the physical downlink shared channel corresponding to each downlink control information according to the response message of the hybrid automatic repeat request.
The downlink control information includes a first downlink control information and a second downlink control information, and each downlink allocation index is a physical downlink sharing corresponding to the downlink control information carrying the downlink allocation index. A downlink that is used to indicate the index of a channel, or is used to indicate an index of a physical downlink control channel that directs a downlink quasi-persistent scheduling release, or carries a downlink allocation index. Used to indicate the index of the physical downlink shared channel that corresponds to the control information, and the physical downlink control channel that directs the downlink quasi-persistent scheduling release, the total number of downlink allocation indexes is all downlink control information. The amount of physical downlink shared channels that correspond to, or the amount of physical downlink control channels that direct a downlink quasi-persistent scheduling release, or the amount of physical downlink shared channels and downlink quasi that correspond to all downlink control information. Persistent scheduling The sum of the amount of physical downlink control channels that direct the release.

With respect to the fourth aspect, in the first possible implementation of the fourth aspect, it is a step of transmitting at least one downlink control information to the user equipment, and each downlink control information is a downlink allocation index. And at least one downlink control information further conveys the total number of downlink allocation indexes.
Steps to set the downlink allocation index for each downlink control information separately for each downlink control information,
When the number of carriers corresponding to the downlink control information is larger than the threshold value of the first carrier amount, the step of setting the total number of downlink allocation indexes in the transmission power control TPC field in the downlink control information and
It includes a step of transmitting at least one downlink control information to the user equipment.

With respect to the first possible implementation of the fourth aspect, in the second possible implementation of the fourth aspect, a plurality of downlinks corresponding to carriers in which the number of carriers is greater than the threshold of the first carrier amount. If control information is present
The step of setting the total number of downlink allocation indexes in the transmit power control TPC field in the downlink control information is
Set the total number of downlink allocation indexes to the TPC field in some of the downlink control information, or set the resource index of the physical uplink control channel PUCCH format 4 to the TPC field in some of the downlink control information. Includes steps to set.

With respect to the second possible implementation of the fourth aspect, in the third possible implementation of the fourth aspect, the total number of downlink allocation indexes is set in the TPC field in some of the downlink control information. Alternatively, the step of setting the resource index of the physical uplink control channel PUCCH format 4 in the TPC field in some of the downlink control information is
The number of carriers corresponding to the downlink control information is larger than the threshold value of the first carrier amount, and the parity of the number of carriers corresponding to the downlink control information is the parity of the threshold value of the first carrier amount. If the total number of downlink allocation indexes is set in the TPC field in the downlink control information, or the number of carriers corresponding to the downlink control information is larger than the threshold value of the first carrier amount. And, when the parity of the number of carriers corresponding to the downlink control information is different from the parity of the threshold value of the first carrier amount, the step of setting the resource index of PUCCH format 4 in the TPC field in the downlink control information. including.

With respect to the fourth aspect, in the fourth possible implementation of the fourth aspect, it is a step of transmitting at least one downlink control information to the user equipment, and each downlink control information is a downlink allocation index. And at least one downlink control information further conveys the total number of downlink allocation indexes.
Steps to set the downlink allocation index for each downlink control information separately for each downlink control information,
If the downlink allocation index of the downlink control information is greater than the second threshold, the step of setting the total number of downlink allocation indexes in the TPC field in the downlink control information and
It includes a step of transmitting at least one downlink control information to the user equipment.

Regarding the fourth possible implementation of the fourth aspect, in the fifth possible implementation of the fourth aspect, there is a plurality of downlink control information whose downlink allocation index is larger than the second threshold value. If
The step of setting the total number of downlink allocation indexes in the TPC field in the downlink control information is
Includes the step of setting the total number of downlink allocation indexes in the TPC field in some of the downlink control information, or setting the resource index of PUCCH format 4 in the TPC field in some of the downlink control information. ..

With respect to the fifth possible implementation of the fourth aspect, in the sixth possible implementation of the fourth aspect, the total number of downlink allocation indexes is set in the TPC field in some of the downlink control information. Alternatively, the step of setting the PUCCH format 4 resource index to the TPC field in some of the downlink control information is
If the downlink allocation index of the downlink control information is larger than the second threshold value and the parity of the downlink allocation index is the same as the parity of the second threshold value, the total number of downlink allocation indexes is downlinked. Set in the TPC field in the control information, or the downlink allocation index of the downlink control information is larger than the second threshold value, and the parity of the downlink allocation index is different from the parity of the second threshold value. In the case, a step of setting a resource index of PUCCH format 4 in a TPC field in the downlink control information is included.

With respect to the fourth aspect, in the seventh possible implementation of the fourth aspect, at least one downlink control information is transmitted to the user equipment, and each downlink control information is a downlink allocation index. And at least one downlink control information further conveys the total number of downlink allocation indexes.
The downlink allocation index of each downlink control information is set separately for each downlink control information, the total number of downlink allocation indexes is set in the total number field of the downlink allocation index in each downlink control information, and It includes a step of transmitting at least one downlink control information to the user equipment.

With respect to the fourth aspect, in the eighth possible implementation of the fourth aspect, at least one downlink control information is transmitted to the user equipment, and each downlink control information is a downlink allocation index. And at least one downlink control information further conveys the total number of downlink allocation indexes.
The downlink allocation index of each downlink control information is set separately for each downlink control information, and the total number of downlink allocation indexes is the total number of downlink allocation indexes in the downlink control information carried by the primary component carrier. It includes a step of setting the field and transmitting at least one downlink control information to the user equipment.

With respect to the fourth aspect, in the ninth possible implementation of the fourth aspect, at least one downlink control information is transmitted to the user equipment, and each downlink control information is a downlink allocation index. And at least one downlink control information further conveys the total number of downlink allocation indexes.
The total number of downlink allocation indexes is set to at least one downlink control information, and special scrambling processing is performed on the cyclic redundancy check CRC code of the downlink control information that carries the total number of downlink allocation indexes. , Steps to get scrambled downlink control information,
Includes a step of transmitting scrambled downlink control information and downlink control information that is not scrambled to the user device.
Both the scrambled downlink control information and the downlink control information that is not scrambled carry the downlink allocation index.

With respect to any one of the first to ninth possible implementations of the fourth aspect or the fourth aspect, in the tenth possible implementation of the fourth aspect, by the total number of downlink allocation indexes. If the amount of occupied bits is less than 5 bits, the total number of downlink allocated indexes acquires the amount of state corresponding to the amount of occupied bits, and the state corresponding to the total number of downlink allocated indexes is the state. Obtained by taking the remainder of the total number of downlink allocation indexes divided by the quantity, the total number of downlink allocation indexes is represented by using the state corresponding to the total number of downlink allocation indexes.

According to the method, user equipment, and apparatus for transmitting control information in the embodiments of the present invention, the receiving module of the user equipment receives at least one first downlink control information transmitted by the base station. Here, each first downlink control information carries the downlink allocation index, and at least one first downlink control information further carries the total number of downlink allocation indexes, and the user equipment. Processing module can determine the downlink control information missed by the user device itself according to the total number of downlink allocation indexes and the downlink allocation index of each first downlink control information, and each reception Further generating a response message of the hybrid automatic repeat request for the physical downlink shared channel corresponding to the first downlink control information, where the response message of the hybrid automatic repeat request is all all transmitted by the base station. Includes user device response information to downlink control information. Therefore, the base station can accurately decode the response message of the hybrid automatic repeat request. In addition, the user equipment in the embodiment can effectively reduce unnecessary information feedback by the user equipment, and can further improve the transmission performance of uplink control information.

In order to more clearly illustrate the technical solutions in the examples of the present invention or in the prior art, the following briefly describes the accompanying drawings required to illustrate the examples or the prior art. Obviously, the accompanying drawings in the description below show some embodiments of the present invention, and one of ordinary skill in the art can further derive other drawings from these accompanying drawings without any creative effort. Can be done.

It is a schematic structural drawing of the Example of the 1st user apparatus by this invention. It is a schematic structural drawing of the Example of the 1st base station by this invention. It is a flow chart of the 1st Example of the method for transmitting the control information by this invention. It is a flow chart of the 2nd Example of the method for transmitting the control information by this invention. It is a flow chart of the 3rd Example of the method for transmitting the control information by this invention. It is a flow chart of the 4th Example of the method for transmitting the control information by this invention. It is a flow chart of the 5th Example of the method for transmitting the control information by this invention. It is a flow chart of the 6th Example of the method for transmitting the control information by this invention. It is a flow chart of the 7th Example of the method for transmitting the control information by this invention. It is a flow chart of the 8th Example of the method for transmitting the control information by this invention. It is a flow chart of the 9th Example of the method for transmitting the control information by this invention. It is a flow chart of the tenth embodiment of the method for transmitting the control information by this invention. It is a flow chart of the eleventh embodiment of the method for transmitting the control information by this invention. It is a flow chart of the twelfth embodiment of the method for transmitting the control information by this invention.

To better clarify the objectives, technical solutions, and advantages of examples of the present invention, the following refers to the technical solutions in the examples of the present invention, with reference to the accompanying drawings in the examples of the present invention. However, explain clearly and sufficiently. Obviously, the examples described are some, but not all, of the examples of the present invention. All other examples obtained by one of ordinary skill in the art based on the examples of the present invention without any creative effort shall be within the scope of protection of the present invention.

The embodiments of the present invention are mainly based on the current carrier aggregation architecture with respect to the control information transmitted between the base station and the user equipment. Specifically, the base station can transmit the control information to the user equipment, and the control information can carry the scheduling information. The user equipment performs data reception processing or data transmission processing according to scheduling information, and transmits the feedback processing result to the base station by using PUCCH. In the carrier aggregation mode in the current LTE technology, the PUCCH transmission mode includes two modes, namely a channel selection mode and a PUCCH format 3. In channel selection mode, ACK / NACK feedback is performed by using PUCCH format 1a / 1b. However, the channel selection mode supports carrier aggregation of two carriers at maximum and is therefore relatively limited in the application scenario of CA mode. The PUCCH format 3 mode uses the DFT-S-OFDM transmission structure and can support the transmission of up to 20 ACKs / NACKs and can support TDD CAs of 5 carriers. The mainstream TDD uplink-downlink configuration 2 introduced for the current TDD network is used as an example. Specifically, see Table 1 for different TDD uplink-downlink configurations in LTE systems. See Table 2 for the time series relationship between PDSCH and ACK / NACK corresponding to PDSCH in the TDD system. The uplink subframe 2 of one carrier can support the feedback of 4 ACK / NACK bits, and the CA of 5 carriers using the TDD uplink-downlink configuration 2 has 20 ACK / NACKs. Become a bit. With further evolution, it is now being considered that LTE technology will support 32 carrier aggregation scenarios. For example, in the case of TDD carrier aggregation, if the TDD uplink-downlink configuration of the primary component carrier is 2 and the uplink-downlink configuration of the four secondary component carriers is all 5, then 4 + 9 × 4 = 40-bit ACK / NACK needs to be fed back. In a TDD-FDD carrier aggregation scenario, the TDD carrier is a primary component carrier, the configuration is TDD configuration 5, and the other carriers are FDD carriers. The maximum amount of ACK / NACK bits that need to be fed back in the uplink primary component carrier is 9 + 10 × 31 = 319 bits. That is, if the HARQ-ACK that needs to be fed back is still based on the amount of carriers constructed, 319 bits need to be constantly fed back to the users of the 32 carriers. In fact, when only one subframe is scheduled on one carrier within a set of downlink subframes corresponding to a particular downlink subframe, 319 bits still need to be fed back. Only one bit of the 319 bits is valid information and the other bits are unnecessary overhead. In addition, when the HARQ-ACK bit exceeds a specified amount of bits (such as 20), the performance obtained by still using a linear block code such as RM code is not good, resulting in the use of a convolutional code. The probability of doing is high. However, when convolutional codes are used, CRC generally needs to be added. When CRC is added, the convolutional code is a priori information (the HARQ-ACK bits corresponding to unscheduled carriers are known and a priori to improve decoding performance in the manner that linear block codes do. It cannot be used to perform maximum likelihood detection by using (which can be used as information). Therefore, the amount of codebook required for HARQ-ACK feedback is determined based on the amount of carriers in the configured set of carriers. The amount of codebook for HARQ-ACK feedback on multiple downlink carriers (ie, the total amount of information bits) is a semi-statically configured set of DL CCs in the system, or carriers in a set of active carriers. As a result, when acquired using a calculation based on the quantity of, the UE generally puts padding bits (such as bit 0) on multiple downlink carriers for which the corresponding HARQ-ACK does not need to be fed back. Used as the source information bit, joint coding is performed on the padding bit and the source information bit for the downlink carrier where the UCI actually needs to be fed back, and transmission is performed on one PUCCH or PUSCH. However, this not only wastes power for transmitting useless information, but also deteriorates the transmission performance of UCI that actually needs to be fed back. In the present invention, the method for transmitting control information in the following examples can be used to effectively solve the above-mentioned problems. For the specific implementation form, refer to the detailed explanation and explanation in the following examples.

FIG. 1 is a schematic structural diagram of an embodiment of a first user device according to the present invention. As shown in FIG. 1, the user equipment in this embodiment may include a receiving module 11, a processing module 12, and a transmitting module 13. The receiving module 11 is configured to receive at least one first downlink control information transmitted by the base station, where each first downlink control information carries a downlink allocation index. , At least one first downlink control information further carries the total number of downlink allocation indexes. The processing module 12 sends the response message of the hybrid automatic repeat request to the total number of downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical corresponding to each first downlink control information. It is configured to generate according to the downlink shared channel. The transmission module 13 is configured to transmit a response message of the hybrid automatic repeat request to the base station.

The total number of downlink allocation indexes is the amount of physical downlink shared channels that correspond to all the downlink control information, or the amount of physical downlink control channels that dictate a downlink semi-persistent scheduling. Or the sum of the amount of physical downlink shared channels corresponding to all the downlink control information and the amount of physical downlink control channels instructing the downlink quasi-persistent scheduling release.

Each downlink allocation index is used to indicate the index of the physical downlink shared channel that corresponds to the downlink control information that carries the downlink allocation index, or the physical that indicates the downlink semi-persistent scheduling release. Physical downlink shared channels that correspond to downlink control information that is used to direct the index of the downlink control channel or that carries the downlink allocation index, and physical downlink that directs the downlink quasi-persistent scheduling release. Used to indicate the index of the control channel.

Specifically, the downlink allocation index of each first downlink control information transmitted by the base station indicates the index of the physical downlink shared channel corresponding to the first downlink control information, and corresponds to the index. Thus, the total number of downlink allocation indexes is the amount of physical downlink shared channels corresponding to all the first downlink control information. Alternatively, some of the downlink allocation indexes of all the first downlink control information transmitted by the base station indicate the index of the physical downlink shared channel corresponding to the first downlink control information. Some dictate the index of the physical downlink control channel that dictates the downlink quasi-persistent scheduling release, and correspondingly the total number of downlink allocation indexes is the physics that corresponds to all the first downlink control information. The sum of the amount of downlink shared channels and the amount of physical downlink control channels that direct a downlink quasi-persistent scheduling release. Alternatively, the downlink allocation index of each first downlink control information transmitted by the base station indicates the index of the physical downlink control channel that directs the downlink quasi-persistent scheduling release, and is correspondingly down. The total number of link allocation indexes is the amount of physical downlink control channels that direct the downlink quasi-persistent scheduling release. In short, the Downlink Assignment Index (DAI for short) directs the PDSCH allocated within a set of downlink-related subframes on one or more scheduled carriers, and the downlink SPS release. Used to represent the cumulative amount of PDCCH / ePDCCH. The total number of downlink allocation indexes is used to represent the total amount of PDCCHs indicating scheduled PDSCH and / or SPS releases.

Note that the bit amount of the total number of downlink allocation indexes, and the bit amount of the downlink allocation index, can be any one of 2 to 8 bits.

The user equipment in the present embodiment first receives each first downlink control information transmitted by the base station, and sends a response message of the hybrid automatic repeat request to the total number of downlink allocation indexes, each first. Further generated according to the downlink allocation index of the downlink control information and the physical downlink shared channel corresponding to each first downlink control information, where the amount of response information in the response message of the hybrid automatic repeat request. Is the same as the total number of downlink allocation indexes. The user equipment transmits a response message of the hybrid automatic repeat request to the base station. Since the user equipment can receive the total number of downlink allocation indexes transmitted by the base station, the user equipment follows the total number of downlink allocation indexes and the downlink allocation index of the respective first downlink control information. The device itself can determine the missed downlink control information and further generate a response message for the hybrid automatic repeat request for the physical downlink shared channel corresponding to each received first downlink control information. Can be done. The response message of the hybrid automatic repeat request includes the feedback response of the user equipment to all the downlink control information transmitted by the base station. All downlink control information transmitted by the base station includes each first downlink control information received by the user equipment, and further includes downlink control information missed by the user equipment.

For example, if the downlink allocation indexes of all the first downlink control information received by the user equipment are 1, 3, 4, and 6, respectively, and the total number of downlink allocation indexes is 7, it is overlooked. The downlink control information can be determined according to the total number of downlink control information and the downlink allocation index of all the first downlink control information, and the downlink control information of the missed downlink control information is the downlink allocation index. 2, 5, and 7.

Since the amount of response information in the response message of the hybrid automatic repeat request sent by the user equipment to the base station is the same as the total number of downlink allocation indexes, the base station is forced to use the user equipment due to an omission of detection in the user equipment. The problem of not being able to accurately decode the response message of the hybrid automatic repeat request fed back by can be effectively solved. The response information in the response message of the hybrid automatic repeat request is ACK or NACK, and the amount of response information is the total amount of ACK and / or NACK. "ACK and / or NACK" represents ACK or NACK, or ACK and NACK.

Further, the processing module 12 corresponds to the response message of the hybrid automatic repeat request to the total number of downlink allocation indexes, the downlink allocation index of each first downlink control information, and each first downlink control information. The specific embodiment configured to generate according to the physical downlink shared channel to be generated depends on whether the user equipment has correctly decoded the physical downlink shared channel corresponding to each first downlink control information. The sort result is obtained by separately generating the response information for the physical downlink shared channel corresponding to each first downlink control information, and sorting the downlink allocation index of all the first downlink control information. Acquire and determine the second downlink control information according to the sort result and the total number of downlink allocation indexes, acquire the downlink allocation index of the second downlink control information, and here, the second downlink control. The response information for the physical downlink shared channel corresponding to the information is a negative response NACK, and the response message of the hybrid automatic repeat request is sent to the physical downlink shared channel corresponding to the respective first downlink control information. The response information is generated according to the response information and the response information for the physical downlink shared channel corresponding to the second downlink control information, and here, the response information for the physical downlink shared channel corresponding to the respective first downlink control information, And the arrangement order of the response information with respect to the physical downlink shared channel corresponding to the second downlink control information is the downlink allocation index of each first downlink control information and the downlink of the second downlink control information. The order is the same as the allocation index, where the response information for the physical downlink shared channel corresponding to each first downlink control information and the physical downlink shared channel corresponding to the second downlink control information. The response information can be in the response message of the hybrid automatic repeat request.

The second downlink control information is the overlooked downlink control information, and both the second downlink control information and the first downlink control information are downlink control transmitted to the user equipment by the base station. Information. The difference is that when the base station transmits a plurality of downlink control information to the user equipment, the user equipment causes a detection omission. In the present specification, the downlink control information overlooked by the user equipment is referred to as a second downlink control information and is distinguished from the first downlink control information.

Specifically, the user equipment first gets into each of the first downlink control information according to whether the physical downlink shared channel corresponding to each received first downlink control information has been correctly decoded. Generates response information for the corresponding physical downlink shared channel, where the response information includes acknowledgment information ACK for accurate decoding and negative response information NACK for inaccurate decoding. Next, the user device acquires the sort result by sorting the downlink allocation index of all the first downlink control information, and here, the sort result sorts the downlink allocation index in ascending order. The sort result obtained by sorting the downlink allocation index of the first downlink control information received, and the downlink allocation index, as well as being able to obtain or sort the downlink allocation index in descending order. By using the total number of, the missed second downlink control information and the downlink allocation index of the second downlink control information can be determined. Since the second downlink control information is overlooked by the user equipment, the only response information for the physical downlink shared channel corresponding to the second downlink control information is the negative response information NACK. Further, the user equipment generates a response message of the hybrid automatic repeat request, wherein the response message of the hybrid automatic repeat request is the response information to the physical downlink shared channel corresponding to the first downlink control information, and the second. Includes response information for the physical downlink shared channel corresponding to the downlink control information of 2. In addition, the arrangement order of the above-mentioned response information in the response message of the hybrid automatic repeat request is the same as the arrangement order of the downlink allocation index of all the downlink control information, and the downlink control information is the first down. Includes link control information and a second downlink control information.

For example, if the user equipment receives 5 DCIs, the DAIs of all DCIs are 3, 1, 4, 6 and 7, respectively, and the total number of received downlink allocation indexes is 9, first, The user equipment generates response information according to whether the PDSCH corresponding to the received DCI has been correctly decoded. Assuming that all decodings are accurate herein, the response information is all 1. Next, the user equipment sorts the DAI of the received DCI, and the sort results are 1, 3, 4, 6, and 7, and the corresponding HARQ-ACK is 11111. In this case, HARQ-ACK does not include response information to the missed information. According to the method of the present embodiment of the present invention, the downlink control information whose downlink allocation indexes are 2, 5, 8, and 9 is overlooked and overlooked according to the sort result and the total number of downlink allocation indexes of 9. It can be determined that the response information to the downlink control information is all 0. The user equipment then generates a HARQ-ACK that is to be last transmitted to the base station according to the detected downlink control information and the response information to the missed downlink control information. It becomes 101101100.

In this embodiment, the receiving module of the user equipment receives at least one first downlink control information transmitted by the base station, wherein each first downlink control information is a downlink allocation index. The at least one first downlink control information further carries the total number of downlink allocation indexes, and the processing module of the user equipment is the total number of downlink allocation indexes and each first down. According to the downlink allocation index of the link control information, the downlink control information missed by the user device itself can be determined, and a hybrid regarding the physical downlink shared channel corresponding to each received first downlink control information. Further generating a response message for the automatic repeat request, where the response message for the hybrid automatic repeat request includes the response information of the user equipment to all the downlink control information transmitted by the base station. Therefore, the base station can accurately decode the response message of the hybrid automatic repeat request. In addition, the user equipment in this embodiment can effectively reduce unnecessary information feedback by the user equipment, and can further improve the transmission performance of uplink control information.

In the above-described embodiment of the user device of the present invention, the technical effect of effectively reducing unnecessary information fed back by the user device and improving the transmission performance of the uplink control information is explained as follows. , Explained. Specifically, the basis of the aforementioned user device embodiment of the present invention is that the total number of downlink allocation indexes scheduled by the base station is transmitted to the user device, and the user device relates to information scheduled by the base station. The useless information that is fed back can be effectively reduced because it is only necessary to provide feedback. In the present specification, in FDD carrier aggregation, 32 downlink carriers are configured for the user equipment, but only 6 of these downlink carriers are scheduled for the user equipment. The explanation is given by using. If the HARQ-ACK is fed back based on the existing amount of the configured carriers, the user device feeds back the 32-bit HARQ-ACK because 32 downlink carriers are configured for the user device. There is a need. It is used herein for illustrative purposes that one carrier corresponds to a 1-bit HARQ-ACK. By using the method in the aforementioned user device embodiment of the present invention, the user device needs to feed back only 6-bit HARQ-ACK, resulting in an effective reduction in 26-bit overhead. be able to.

In an embodiment of a first user device of the present invention, the receiving module 11 is configured to receive at least one first downlink control information transmitted by the base station, where the first of each is configured. The fact that the downlink control information carries the downlink allocation index and that at least one first downlink control information further carries the total number of the downlink allocation indexes has a plurality of different concrete implementations. Can be done. That is, there are a plurality of different specific implementations relating to a method for the user equipment to specifically acquire the total number of downlink allocation indexes carried in the first downlink control information. The following uses five different implementations for specific explanations and explanations.

In the second embodiment of the user device of the present invention, specifically, the schematic structural diagram of the second user device embodiment of the present invention is the same as the schematic structural diagram of the first user device embodiment described above. The same structure can be used. The difference is that the receiving module 11 in the second user device embodiment of the present invention sets a threshold for the first carrier amount and provides at least one first downlink control information transmitted by the base station. When it is received and the downlink allocation index of each first downlink control information is acquired and the number of carriers corresponding to the first downlink control information is larger than the threshold value of the first carrier amount, The point is that it is specifically configured to acquire the total number of downlink allocation indexes in the transmission power control TPC field in the first downlink control information.

That is, when the number of carriers carrying the first downlink control information is larger than the threshold value of the first carrier amount, the receiving module 11 downlinks in the TPC field in the first downlink control information. Get the total number of assigned indexes specifically.

Optionally, the receiving module 11 is further configured to receive the first carrier amount threshold transmitted by the base station before setting the first carrier amount threshold. That is, the first carrier amount threshold can be a standard or a value set in the system, or can be notified to the user equipment by using signaling by the base station. For TDD carrier aggregation, the threshold for the first carrier amount can be 5. For FDD carrier aggregation, the threshold for the first carrier amount can be 10, 20, or similar.

Further, after the processing module 12 generates the response message of the hybrid automatic repeat request, the transmission module 13 needs to transmit the response message of the hybrid automatic repeat request to the base station. Specifically, the following two transmissions are performed. There is a method.

In the first method, the receiving module 11 of the user equipment is configured to further receive the amount of configured carriers transmitted by the base station. Correspondingly, the transmission module 13 is configured to transmit the response message of the hybrid automatic repeat request to the base station. Specifically, the amount of the configured carriers is first, as described below. If it is greater than the threshold of, the response message of the hybrid automatic repeat request is sent to the base station by using the physical uplink control channel format 4, or the amount of carriers configured is the first threshold. If it is less than or equal to the value, the response message of the hybrid automatic repeat request may be sent to the base station by using the physical uplink control channel format 3.

Specifically, the first threshold can be 5. The maximum HARQ-ACK bit amount supported by PUCCH format 3 in existing standards is 21 bits, or 20 bits, or 22 bits, correspondingly supporting aggregation of 5 carriers. When the amount of configured carriers configured for the user equipment is greater than 5, HARQ-ACK is transmitted by using the new PUCCH format (PUCCH format 4). HARQ-ACK is transmitted by using PUCCH format 3 when the amount of configured carriers configured for the user equipment is 5 or less.

In the second method, the processing module 12 of the user equipment is further configured to acquire a bit amount threshold of the response message of the hybrid automatic repeat request supported on the predefined physical uplink control channel. Ru. Correspondingly, the transmission module 13 is configured to transmit the response message of the hybrid automatic repeat request to the base station, so that the total number of downlink allocation indexes is supported on the physical uplink control channel. If the bit amount threshold of the automatic repeat request response message is greater than the threshold, the hybrid automatic repeat request response message is sent to the base station by using physical uplink control channel format 4 or downlink allocation. If the total number of indexes is less than or equal to the bit amount threshold of the response message of the hybrid automatic repeat request supported on the physical uplink control channel, the response message of the hybrid automatic repeat request is sent to the base station and the physical uplink control channel. Includes transmitting by using format 3.

Specifically, unlike the traditional method of sending a response message for a hybrid automatic repeat request, the user equipment can receive a threshold for the amount of configured carriers sent by the base station, where In, the threshold for the amount of configured carriers can be 5, i.e., the value can be the same as the first threshold described above, and the user equipment can be of the configured carriers. According to the amount threshold, the bit amount threshold of the response message of the hybrid automatic repeat request supported on the physical uplink shared channel can be obtained. Indeed, in addition, the bit amount threshold of the response message of the hybrid automatic repeat request supported on the physical uplink shared channel can be set by the protocol or by default. The user equipment hybridizes by using the scale relationship between the total number of downlink allocation indexes and the bit amount threshold of the response message of the hybrid automatic repeat request supported on the physical uplink shared channel. Determines whether the response message of the automatic repeat request should be transmitted by using PUCCH format 4 or PUCCH format 3. The threshold for the amount of bits in the response message of the hybrid automatic repeat request can be 21 bits, 20 bits, or 22 bits. In addition, if only the primary component carrier is scheduled, the response message of the hybrid automatic repeat request may be transmitted by using PUCCH format 1a / 1b, or PUCCH format 1a / 1b with channel selection. Please note. It should be noted that the user equipment can transmit the response message of the hybrid automatic repeat request by the method described above. However, there are cases where the user equipment does not receive the total number of downlink allocation indexes, in which case the user equipment can directly transmit the response message of the hybrid automatic repeat request by using PUCCH format 3. To do.

If, optionally, there are a plurality of first downlink control information corresponding to carriers whose number of carriers is larger than the threshold value of the first carrier amount, the receiving module 11 of the user device controls the first downlink. A specific implementation configured to acquire the total number of downlink allocation indexes in the transmit power control TPC field in the information is the TPC field in some of the first downlink control information, as described below. It can be to get the total number of downlink allocation indexes in, or to get the resource index of PUCCH format 4 in the TPC field in some of the first downlink control information. Further, the receiving module 11 obtains the total number of downlink allocation indexes in the TPC field in some of the first downlink control information, or TPC in some of the first downlink control information. It is configured to acquire the resource index of PUCCH format 4 in the field, more specifically, as described below, the number of carriers corresponding to the first downlink control information is the first. The first downlink when the parity of the number of carriers corresponding to the first downlink control information, which is larger than the threshold of the amount of carriers, is the same as the parity of the threshold of the amount of first carriers. The total number of downlink allocation indexes in the TPC field in the control information is acquired, or the number of carriers corresponding to the first downlink control information is larger than the threshold value of the first carrier amount, and the first When the parity of the number of carriers corresponding to the downlink control information of is different from the parity of the threshold value of the first carrier amount, the resource index of PUCCH format 4 in the TPC field in the first downlink control information is used. It can be to get. If there is only one first downlink control information corresponding to a carrier whose number of carriers is greater than the threshold of the first carrier amount, the total number of downlink allocation indexes is the TPC in the first downlink control information. Note that the PUCCH format resource indicators obtained in the field can use the default PUCCH format resource indicators.

In the third user device embodiment of the present invention, specifically, the schematic structural diagram of the third user device embodiment of the present invention is the same as the schematic structural diagram of the first user device embodiment described above. The same structure can be used. The difference is that the receiving module 11 in the third user device embodiment of the present invention sets a second threshold and receives at least one first downlink control information transmitted by the base station. , Get the downlink allocation index of each first downlink control information, and if the downlink allocation index of the downlink control information is greater than the second threshold, the first down corresponding to the downlink allocation index The point is that it is specifically configured to acquire the total number of downlink allocation indexes in the TPC field in the link control information.

If, optionally, there are a plurality of first downlink control information whose downlink allocation index is larger than the second threshold value, the receiving module 11 receives the first downlink control information corresponding to the downlink allocation index. Configured to retrieve the total number of downlink allocation indexes in the TPC field in, specifically, down in the TPC field in some of the first downlink control information, as described below. It can be to get the total number of link allocation indexes, or to get the PUCCH format 4 resource index in the TPC field in some of the first downlink control information. Further, the receiving module 11 obtains the total number of downlink allocation indexes in the TPC field in some of the first downlink control information, or TPC in some of the first downlink control information. It is configured to acquire the PUCCH format 4 resource index in the field, specifically, the downlink allocation index of the first downlink control information is set from the second threshold value as shown below. If it is large and the parity of the downlink allocation index is the same as the parity of the second threshold, the total number of downlink allocation indexes in the TPC field in the first downlink control information is acquired, or the first When the downlink allocation index of the downlink control information of 1 is larger than the second threshold value and the parity of the downlink allocation index is different from the parity of the second threshold value, in the first downlink control information. It is possible to obtain a resource index of PUCCH format 4 in the TPC field.

In the fourth user device embodiment of the present invention, specifically, the schematic structural diagram of the fourth user device embodiment of the present invention is the same as the schematic structural diagram of the first user device embodiment described above. The same structure can be used. The difference is that the receiving module 11 in the fourth user device embodiment of the present invention receives at least one first downlink control information transmitted by the base station and of each of the first downlink control information. The point is that the downlink allocation index is acquired, and the total number of downlink allocation indexes in the total number field of the downlink allocation index in each first downlink control information is acquired.

In the fifth user device embodiment of the present invention, specifically, the schematic structural diagram of the fifth user device embodiment of the present invention is the same as the schematic structural diagram of the first user device embodiment described above. The same structure can be used. The difference is that the receiving module 11 in the fifth user device embodiment of the present invention receives at least one first downlink control information transmitted by the base station and of each first downlink control information. It is specifically configured to get the downlink allocation index and the total number of downlink allocation indexes in the total number of downlink allocation indexes field in the first downlink control information carried by the primary component carrier. The point is that.

In the sixth user device embodiment of the present invention, specifically, the schematic structural diagram of the sixth user device embodiment of the present invention is the same as the schematic structural diagram of the first user device embodiment described above. The same structure can be used. The difference is that the receiving module 11 in the sixth user device embodiment of the present invention receives at least one first downlink control information transmitted by the base station, and the special scrambling process is the first. When performed on a Cyclic Redundancy Check (CRC) code for downlink control information, a descramble process is performed on the first downlink control information and the total number of downlink allocation indexes. , And the point is that it is specifically configured to acquire the downlink allocation index of the first downlink control information. It will be appreciated that if the special scrambling process is not performed on the CRC of the first downlink control information, only the downlink allocation index of the first downlink control information can be acquired.

It should be noted that the present embodiment of the present invention is not limited to the case where the total number of downlink allocation indexes is acquired in the first downlink control information satisfying the above conditions. Based on the contents disclosed in the present invention, those skilled in the art can obtain the total number of downlink allocation indexes by another alternative method. Furthermore, the present embodiment of the present invention is not limited to the above-mentioned case where the total number of downlink allocation indexes is acquired in either the TPC field or the total number field of the newly added downlink allocation index. The total number of downlink allocation indexes can be obtained in another field in the existing first downlink control information, or the total number of downlink allocation indexes can be obtained in another newly added field. Will be understood.

Based on the first user device embodiment, in the second to sixth user device embodiments of the present invention, the total number of downlink allocation indexes is further obtained by the five different methods described above. Therefore, in the second to sixth user device embodiments of the present invention, the same technical effect as the technical effect in the first user device embodiment can be obtained, while the following There are more technical effects. In all five methods described above, the total number of downlink allocation indexes is obtained by using existing signaling. Therefore, the additional signaling overhead is not increased.

FIG. 2 is a schematic structural diagram of an embodiment of the first base station according to the present invention. As shown in FIG. 2, the base station in this embodiment may include a transmitting module 21, a receiving module 22, and a processing module 23. The transmission module 21 is configured to transmit at least one downlink control information to the user equipment, where each downlink control information carries a downlink allocation index and the at least one downlink control information is , Further carry the total number of downlink allocation indexes. The receiving module 22 transmits by the user equipment according to the total number of downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink sharing channel corresponding to each first downlink control information. It is configured to receive the response message of the hybrid automatic repeat request. The processing module 23 is configured to acquire the response information for the physical downlink shared channel corresponding to each downlink control information according to the response message of the hybrid automatic repeat request.

The downlink control information includes a first downlink control information and a second downlink control information. The total number of downlink allocation indexes is the amount of physical downlink shared channels that correspond to all downlink control information, or the amount of physical downlink control channels that direct a downlink quasi-persistent scheduling release, or all downlink control information. The sum of the amount of physical downlink shared channels corresponding to and the amount of physical downlink control channels that direct the downlink quasi-persistent scheduling release.

Each downlink allocation index is used to indicate the index of the physical downlink shared channel that corresponds to the downlink control information that carries the downlink allocation index, or the physical that indicates the downlink semi-persistent scheduling release. Physical downlink shared channels that correspond to downlink control information that is used to direct the index of the downlink control channel or that carries the downlink allocation index, and physical downlink that directs the downlink quasi-persistent scheduling release. Used to indicate the index of the control channel.

In this embodiment, the base station transmit module transmits at least one downlink control information to the user equipment, where each downlink control information carries a downlink allocation index and at least one downlink. The control information further carries the total number of downlink allocation indexes. Next, the receiving module of the base station receives the response message of the hybrid automatic repeat request transmitted by the terminal, and the response message of the hybrid automatic repeat request is the total number of downlink allocation indexes, the first of each. The downlink allocation index of the downlink control information, and the response message of the hybrid automatic repeat request transmitted by the user device according to the physical downlink shared channel corresponding to each first downlink control information, and the hybrid automatic retransmission. The response message of the request includes the response information of the user equipment to all the downlink control information transmitted by the base station. Further, the processing module of the base station can acquire the response information for the physical downlink shared channel corresponding to each downlink control information according to the response message of the hybrid automatic repeat request. Therefore, the base station can accurately decode the response message of the hybrid automatic repeat request. In addition, the base station in the present embodiment can further effectively reduce the reception of unnecessary information feedback by the user equipment, and improve the transmission performance of the uplink control information.

In the first embodiment of the base station of the present invention, the transmission module 21 is configured to transmit at least one downlink control information to the user equipment, where each downlink control information is assigned a downlink. Carrying the index and having at least one downlink control information further carry the total number of downlink allocation indexes can have a number of different specific implementations. That is, there are a number of different specific implementations of how the base station notifies the total number of downlink allocation indexes by using downlink control information. The following uses five different implementations for specific explanations and explanations.

In the second base station embodiment of the present invention, specifically, the schematic structural diagram of the second base station embodiment of the present invention has the same structure as the structure of the first base station embodiment described above. Can be used. The difference is that in the second base station embodiment of the present invention, the transmission module 21 is configured to transmit at least one downlink control information to the user equipment, where each downlink control information is: Carrying the downlink allocation index and having at least one downlink control information further carry the total number of downlink allocation indexes specifically means that the downlink allocation of each downlink control information is carried out, as described below. If the index is set separately for each downlink control information and the number of carriers corresponding to the downlink control information is larger than the threshold value of the first carrier amount, the total number of downlink allocation indexes is set as the downlink control information. In addition to being set in the transmission power control TPC field in the above, at least one downlink control information can be transmitted to the user equipment.

Optionally, the transmit module is further configured to transmit a first carrier quantity threshold to the user equipment. Indeed, it will be appreciated that the first carrier amount threshold can be predefined in the protocol or in the system, which is not construed as a limitation herein.

Further, when there are a plurality of downlink control information corresponding to carriers whose number of carriers is larger than the threshold value of the first carrier amount, the transmission module 21 sets the total number of downlink allocation indexes as the transmission power in the downlink control information. Configured to set in the control TPC field specifically sets the total number of downlink allocation indexes in the TPC field in some of the downlink control information, or physically, as described below. The resource index of the uplink control channel PUCCH format 4 may be set in the TPC field in some of the downlink control information. Further, the transmission module 21 sets the total number of downlink allocation indexes in the TPC field in some of the downlink control information, or sets the resource index of the physical uplink control channel PUCCH format 4 in the downlink control information. More specifically, as described below, the number of carriers corresponding to the downlink control information is determined to be set in the TPC field in some of the first carrier amounts. If the parity of the number of carriers corresponding to the downlink control information is large and the parity of the number of carriers corresponding to the downlink control information is the same as the parity of the threshold value of the first carrier amount, the total number of downlink allocation indexes is set in the TPC field in the downlink control information. Or, the number of carriers corresponding to the downlink control information is larger than the threshold value of the first carrier amount, and the parity of the number of carriers corresponding to the downlink control information is the first carrier amount. If it is different from the parity of the threshold value, the resource index of PUCCH format 4 may be set in the TPC field in the downlink control information.

In the third base station embodiment of the present invention, specifically, the schematic structural diagram of the third base station embodiment of the present invention has the same structure as the structure of the first base station embodiment described above. Can be used. The difference is that in the third base station embodiment of the present invention, the transmission module 21 is configured to transmit at least one downlink control information to the user equipment, where each downlink control information is: Carrying the downlink allocation index and having at least one downlink control information further carry the total number of downlink allocation indexes specifically means that the downlink allocation of each downlink control information is carried out, as described below. If the index is set separately for each downlink control information and the downlink allocation index of the downlink control information is larger than the second threshold value, the total number of downlink allocation indexes is set in the TPC field in the downlink control information. At the same time, it is possible to transmit at least one downlink control information to the user device. That is, based on the downlink allocation index of the downlink control information, it is determined whether the TPC field in the downlink control information is used as the total number of the downlink allocation indexes.

In addition, if there is more than one downlink control information whose downlink allocation index is greater than the second threshold,
The transmission module is configured to set the total number of downlink allocation indexes in the TPC field in the downlink control information. Specifically, the total number of downlink allocation indexes is set to the downlink control information as shown below. It can be set in the TPC field in some of the downlink control information, or the resource index of PUCCH format 4 can be set in the TPC field in some of the downlink control information. In addition, the transmit module sets the total number of downlink allocation indexes in the TPC field in some of the downlink control information, or sets the PUCCH format 4 resource index in the TPC field in some of the downlink control information. More specifically, as described below, the downlink allocation index of the downlink control information is larger than the second threshold value, and the parity of the downlink allocation index is set to. If it is the same as the parity of the second threshold, either set the total number of downlink allocation indexes in the TPC field in the downlink control information, or the downlink allocation index of the downlink control information is the second threshold. If it is greater than the value and the parity of the downlink allocation index is different from the parity of the second threshold, it is possible to set the resource index of PUCCH format 4 in the TPC field in the downlink control information.

In the fourth base station embodiment of the present invention, specifically, the schematic structural diagram of the fourth base station embodiment of the present invention has the same structure as the structure of the first base station embodiment described above. Can be used. The difference is that in the fourth base station embodiment of the present invention, the transmission module 21 is configured to transmit at least one downlink control information to the user equipment, where each downlink control information is: Carrying the downlink allocation index and having at least one downlink control information further carry the total number of downlink allocation indexes specifically means that the downlink allocation of each downlink control information is carried out, as described below. Indexes are set separately for each downlink control information, the total number of downlink allocation indexes is set in the total number field of downlink allocation indexes in each downlink control information, and at least one downlink control information is set in the user device. The point is that it can be sent to.

That is, the total number field of the downlink allocation index, such as 2 bits or 3 bits, is newly added in all the downlink control information and is specially used to indicate the total number of the downlink allocation indexes.

In the fifth base station embodiment of the present invention, specifically, the schematic structural diagram of the fifth base station embodiment of the present invention has the same structure as the structure of the first base station embodiment described above. Can be used. The difference is that in the fifth base station embodiment of the present invention, the transmission module 21 is configured to transmit at least one downlink control information to the user equipment, where each downlink control information is: Carrying the downlink allocation index and having at least one downlink control information further carry the total number of downlink allocation indexes specifically means that the downlink allocation of each downlink control information is carried out, as described below. Indexes are set separately for each downlink control information, the total number of downlink allocation indexes is set in the total number field of downlink allocation indexes in the downlink control information carried by the primary component carrier, and at least one down. The point is that the link control information can be transmitted to the user device.

That is, the total number of downlink allocation indexes field is newly added only in the downlink control information on the primary component carrier and is used to indicate the total number of downlink allocation indexes. The Downlink Allocation Index Total field is not added to the downlink control information on another secondary component carrier.

In the sixth base station embodiment of the present invention, specifically, the schematic structural diagram of the sixth base station embodiment of the present invention has the same structure as the structure of the first base station embodiment described above. Can be used. The difference is that in the sixth base station embodiment of the present invention, the transmission module 21 is configured to transmit at least one downlink control information to the user equipment, where each downlink control information is: Carrying the downlink allocation index and having at least one downlink control information further carry the total number of downlink allocation indexes specifically means that the total number of downlink allocation indexes is at least one, as described below. In addition to setting the downlink control information, special scrambling processing is performed on the CRC of the downlink control information that carries the total number of downlink allocation indexes to acquire the scrambled downlink control information and use the user device. It is possible to transmit the scrambled downlink control information and the downlink control information in which the scrambling process is not performed, and here, the scrambled downlink control information and the scrambling process are not performed. Both downlink control information is in that it carries the downlink allocation index.

That is, the scrambling process is performed on the CRC of the downlink control information that carries the total number of downlink allocation indexes, and the scrambling process is performed on the CRC of the downlink control information that does not carry the total number of the downlink allocation indexes. Will not be implemented.

Further, regarding the case where the total number of downlink allocation indexes is set in the downlink control information in any one of the above-described first base station embodiments to sixth base station embodiments. The amount of bits occupied by the total number of downlink allocation indexes can be 2 bits, 3 bits, 5 bits, or the like. If the amount of bits occupied by the total number of downlink allocation indexes is less than 5 bits, the amount of state corresponding to the amount of bits occupied by the total number of downlink allocation indexes is obtained, and the total number of downlink allocation indexes is calculated. The corresponding state is obtained by taking the remainder of the total number of downlink allocation indexes divided by the amount of state, and the total number of downlink allocation indexes should use the state corresponding to the total number of downlink allocation indexes. Represented by.

Specifically, if the amount of bits occupied by the total number of downlink allocation indexes is less than 5 bits, the amount of state corresponding to the amount of bits occupied by the total number of downlink allocation indexes is the downlink allocation index. There are cases that differ from the total number of. For example, if the total number of downlink allocation indexes is 32 or less and the amount of bits occupied by the total number of downlink allocation indexes is 2 bits, the state corresponding to the total number of downlink allocation indexes gets the remainder. Must be obtained by the method described above, i.e., the total number of downlink allocation indexes is expressed by using states. Specifically, when the amount of bits occupied by the total number of downlink allocation indexes is 2 bits, the correspondence between the state corresponding to the total number of downlink allocation indexes and the total number of downlink allocation indexes is , Table 3 shows that when the amount of bits occupied by the total number of downlink allocation indexes is 3 bits, the state corresponding to the total number of downlink allocation indexes and the total number of downlink allocation indexes. The correspondence between them can be shown in Table 4, where the state corresponding to the total number of downlink allocation indexes and the downlink allocation when the amount of bits occupied by the total number of downlink allocation indexes is 5 bits. The correspondence with the total number of indexes can be shown in Table 5.

Based on the first base station embodiment, in the second to sixth base station embodiments of the present invention, the total number of downlink allocation indexes is further transmitted by the five different methods described above. Therefore, in the second to sixth base station examples of the present invention, the same technical effect as the technical effect in the first base station embodiment can be obtained, while the following There are more technical effects. In all five methods described above, the total number of downlink allocation indexes is obtained by using existing signaling. Therefore, the additional signaling overhead is not increased.

FIG. 3 is a flow chart of a first embodiment of the method for transmitting control information according to the present invention. As shown in FIG. 3, this embodiment is performed by a user device, and the method in this embodiment may include the following steps.

Step 101. It receives at least one first downlink control information transmitted by the base station, where each first downlink control information carries a downlink allocation index and at least one first downlink. The control information further carries the total number of downlink allocation indexes.

Each downlink allocation index is used to indicate the index of the physical downlink shared channel that corresponds to the first downlink control information that carries the downlink allocation index, or has a downlink semi-persistent scheduling release. Used to indicate the index of the physical downlink control channel to indicate, the total number of downlink allocation indexes is the amount of physical downlink shared channels corresponding to all the first downlink control information, or downlink quasi-persistent. The amount of physical downlink control channels that direct a scheduling release, or the amount of physical downlink shared channels that correspond to all the first downlink control information, and the physical downlink control channels that direct a downlink quasi-persistent scheduling release. The total amount.

Specifically, the downlink allocation index of each first downlink control information transmitted by the base station indicates the index of the physical downlink shared channel corresponding to the first downlink control information, and corresponds to the index. Thus, the total number of downlink allocation indexes is the amount of physical downlink shared channels corresponding to all the first downlink control information. Alternatively, some of the downlink allocation indexes of all the first downlink control information transmitted by the base station indicate the index of the physical downlink shared channel corresponding to the first downlink control information. Some dictate the index of the physical downlink control channel that dictates the downlink quasi-persistent scheduling release, and correspondingly the total number of downlink allocation indexes is the physics that corresponds to all the first downlink control information. The sum of the amount of downlink shared channels and the amount of physical downlink control channels that direct a downlink quasi-persistent scheduling release. Alternatively, the downlink allocation index of each first downlink control information transmitted by the base station indicates the index of the physical downlink control channel that directs the downlink quasi-persistent scheduling release, and is correspondingly down. The total number of link allocation indexes is the amount of physical downlink control channels that direct the downlink quasi-persistent scheduling release. In short, the Downlink Assignment Index (DAI for short) is the PDCCH / ePDCCH corresponding to the PDSCH assigned within a set of downlink-related subframes on one or more scheduled carriers, and down. Used to represent the cumulative amount of PDCCH / ePDCCH indicating the link SPS release. The total number of downlink allocation indexes is used to represent the total amount of PDCCHs indicating scheduled PDSCH and / or SPS releases.

Note that the bit amount of the total number of downlink allocation indexes, and the bit amount of the downlink allocation index, can be any one of 2 to 8 bits.

Step 102. The response message of the hybrid automatic repeat request is according to the total number of downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink sharing channel corresponding to each first downlink control information. Generate.

For example, if the downlink allocation indexes of all the first downlink control information received by the user equipment are 1, 3, 4, and 6, respectively, and the total number of downlink allocation indexes is 7, it is overlooked. The second downlink control information can be determined according to the total number of downlink allocation indexes and the downlink allocation index of all the first downlink control information, and the downlink of the second downlink control information can be determined. The assigned indexes are 2, 5, and 7.

Step 103. Sends the response message of the hybrid automatic repeat request to the base station.

The method for transmitting control information provided in this embodiment is used to complete the processing of the user equipment shown in FIG. The principles and technical effects of implementation for the method are similar and details are not described herein.

There can be a number of different specific implementations for step 101 in the first embodiment of the method for transmitting control information in the present invention. That is, there are a plurality of different specific implementations relating to how the user equipment specifically obtains the total number of downlink allocation indexes carried within the first downlink control information. The following uses five different implementations for specific explanations and explanations.

FIG. 4 is a flow chart of a second embodiment of the method for transmitting control information according to the present invention. As shown in FIG. 4, the method in this embodiment may include the following steps.

S201. It sets a threshold for the first carrier amount, receives at least one first downlink control information transmitted by the base station, and acquires a downlink allocation index for each first downlink control information. ..

Optionally, prior to S201, a first carrier quantity threshold transmitted by the base station may be further received. That is, the first carrier amount threshold can be a standard or in-system set value, or can be notified to the user equipment by using signaling by the base station. For TDD carrier aggregation, the threshold for the first carrier amount can be 5. For FDD carrier aggregation, the threshold for the first carrier amount can be 10, 20, or similar.

S202. When the number of carriers corresponding to the first downlink control information is larger than the threshold value of the first carrier amount, the total number of downlink allocation indexes in the transmission power control TPC field in the first downlink control information. To get.

S203. The second downlink control information is determined according to the total number of downlink allocation indexes and the downlink allocation index of each first downlink control information, and the response message of the hybrid automatic retransmission request is each downed. It is generated according to the response information for the physical downlink shared channel corresponding to the link control information and the response information for the physical downlink shared channel corresponding to the second downlink control information.

S204. Sends the response message of the hybrid automatic repeat request to the base station.

Optionally, the user equipment can further receive the amount of configured carriers transmitted by the base station. Correspondingly, S204 physically uplinks the response message of the hybrid automatic repeat request to the base station when the amount of the configured carriers is larger than the first threshold value, as described below. If the amount of carriers transmitted or configured by using control channel format 4 is less than or equal to the first threshold, the response message of the hybrid automatic repeat request is sent to the base station and the physical uplink control channel format 3 Can be sent by using.

Specifically, the first threshold can be 5. The maximum HARQ-ACK bit amount supported by PUCCH format 3 in the existing standard is 21 bits, or 20 bits, or 22 bits, correspondingly supporting aggregation of 5 carriers. When the amount of configured carriers configured for the user equipment is greater than 5, HARQ-ACK is transmitted by using the new PUCCH format (PUCCH format 4). HARQ-ACK is transmitted by using PUCCH format 3 when the amount of configured carriers configured for the user equipment is 5 or less.

In another implementable approach, the user equipment can further receive the configured carrier quantity threshold sent by the base station and physically increase according to the configured carrier quantity threshold. You can get the bit amount threshold of the response message of the hybrid automatic repeat request supported on the link control channel. Note that the bit amount threshold for the response message of the hybrid automatic repeat request supported on the physical uplink control channel can be set within the protocol. Correspondingly, S204 specifically states that the total number of downlink allocation indexes is the threshold value of the bit amount of the response message of the hybrid automatic repeat request supported on the physical uplink control channel, as described below. If greater, the response message of the hybrid automatic repeat request is sent to the base station by using the physical uplink control channel format 4, or the total number of downlink allocation indexes is supported on the physical uplink control channel. If the bit amount threshold value of the response message of the hybrid automatic repeat request is less than or equal to the threshold value, the response message of the hybrid automatic repeat request may be transmitted to the base station by using the physical uplink control channel format 3.

Specifically, unlike traditional methods of sending a response message for a hybrid automatic repeat request, the user equipment can receive a threshold for the amount of configured carriers sent by the base station, where In, the threshold for the amount of carriers configured can be 5, i.e. the value can be the same as the first threshold described above, and the user equipment is supported hybrid automatic The resend request response message bit amount threshold can be obtained according to the configured carrier quantity threshold, as well as the total number of downlink allocation indexes and the bit amount of the hybrid automatic repeat request response message. By using the scale relationship with the threshold value of, it is possible to determine whether the response message of the hybrid automatic repeat request should be transmitted by using PUCCH format 4 or PUCCH format 3. The threshold for the amount of bits in the response message of the hybrid automatic repeat request can be 21 bits, 20 bits, or 22 bits. In addition, if only the primary component carrier is scheduled, the response message of the hybrid automatic repeat request may be transmitted by using PUCCH format 1a / 1b, or PUCCH format 1a / 1b with channel selection. Please note. It should be noted that the user equipment can transmit the response message of the hybrid automatic repeat request by the method described above. However, there are cases where the user equipment does not receive the total number of downlink allocation indexes, in which case the user equipment can directly transmit the response message of the hybrid automatic repeat request by using PUCCH format 3. To do.

Optionally, the S202 can also be specifically as follows, i.e., a plurality of first downlink controls corresponding to carriers whose number of carriers is greater than the threshold of the first carrier amount. In the presence of information, acquiring the total number of downlink allocation indexes in the transmit power control TPC field in the first downlink control information in S202 specifically means the first downlink, as described below. Get the total number of downlink allocation indexes in the TPC field in some of the control information, or get the PUCCH format 4 resource index in the TPC field in some of the first downlink control information. It can be. In addition, either obtain the total number of downlink allocation indexes in the TPC field in some of the first downlink control information, or the PUCCH format in the TPC field in some of the first downlink control information. To acquire the resource index of 4, more specifically, as described below, the number of carriers corresponding to the first downlink control information is larger than the threshold value of the first carrier amount, and If the parity of the number of carriers corresponding to the first downlink control information is the same as the parity of the threshold value of the first carrier amount, the downlink allocation index in the TPC field in the first downlink control information The number of carriers of the carrier corresponding to the first downlink control information is larger than the threshold value of the first carrier amount, and the carrier of the carrier corresponding to the first downlink control information is obtained. If the parity of the number is different from the parity of the threshold of the first carrier amount, it is possible to acquire the resource index of PUCCH format 4 in the TPC field in the first downlink control information. If there is only one first downlink control information corresponding to a carrier whose number of carriers is greater than the threshold of the first carrier amount, the total number of downlink allocation indexes is the TPC in the first downlink control information. Note that the PUCCH format resource indicators obtained in the field can use the default PUCCH format resource indicators.

The method for transmitting control information provided in this embodiment is used to complete the process in the second user device embodiment. The principles and technical effects of implementation for the method are similar and details are not described herein.

FIG. 5 is a flow chart of a third embodiment of the method for transmitting control information according to the present invention. As shown in FIG. 5, the method in this embodiment may include the following steps.

S301. A second threshold is set, at least one first downlink control information transmitted by the base station is received, and a downlink allocation index of each first downlink control information is acquired.

S302. When the downlink allocation index of the downlink control information is larger than the second threshold value, the total number of downlink allocation indexes in the TPC field in the first downlink control information corresponding to the downlink allocation index is acquired.

S303. The second downlink control information is determined according to the total number of downlink allocation indexes and the downlink allocation index of each first downlink control information, and the response message of the hybrid automatic retransmission request is each downed. It is generated according to the response information for the physical downlink shared channel corresponding to the link control information and the response information for the physical downlink shared channel corresponding to the second downlink control information.

S304. Sends the response message of the hybrid automatic repeat request to the base station.

When there are a plurality of first downlink control information whose downlink allocation index is larger than the second threshold value, in S302, the downlink control information in the first downlink control information corresponding to the downlink allocation index is down in the TPC field. Acquiring the total number of link allocation indexes specifically obtains the total number of downlink allocation indexes in the TPC field in some of the first downlink control information, as described below. It may be possible to obtain a PUCCH format 4 resource index in the TPC field in some of the first downlink control information. In addition, either obtain the total number of downlink allocation indexes in the TPC field in some of the first downlink control information, or the PUCCH format in the TPC field in some of the first downlink control information. To acquire the resource index of 4, specifically, as shown below, the downlink allocation index of the first downlink control information is larger than the second threshold value, and the parity of the downlink allocation index is large. If it is the same as the parity of the second threshold value, either obtain the total number of downlink allocation indexes in the TPC field in the first downlink control information, or obtain the downlink allocation index of the first downlink control information. Is greater than the second threshold and the parity of the downlink allocation index is different from the parity of the second threshold, the resource index of PUCCH format 4 in the TPC field in the first downlink control information is used. It can be to get.

The method for transmitting control information provided in this embodiment is used to complete the process in the third user device embodiment. The principles and technical effects of implementation for the method are similar and details are not described herein.

FIG. 6 is a flow chart of a fourth embodiment of the method for transmitting control information according to the present invention. As shown in FIG. 6, the method in this embodiment may include the following steps.

S401. Receives at least one first downlink control information transmitted by the base station, acquires the downlink allocation index of each first downlink control information, and downlinks in each first downlink control information. Get the total number of downlink assigned indexes in the Total Assigned Index field.

S402. The second downlink control information is determined according to the total number of downlink allocation indexes and the downlink allocation index of each first downlink control information, and the response message of the hybrid automatic retransmission request is each downed. It is generated according to the response information for the physical downlink shared channel corresponding to the link control information and the response information for the physical downlink shared channel corresponding to the second downlink control information.

S403. Sends the response message of the hybrid automatic repeat request to the base station.

The method for transmitting control information provided in this embodiment is used to complete the process in the fourth user device embodiment. The principles and technical effects of implementation for the method are similar and details are not described herein.

FIG. 7 is a flow chart of a fifth embodiment of the method for transmitting control information according to the present invention. As shown in FIG. 7, the method in this embodiment may include the following steps.

S501. Receives at least one first downlink control information transmitted by the base station, obtains the downlink allocation index of each first downlink control information, and carries the first downlink by the primary component carrier. Get the total number of downlink allocation indexes in the total number of downlink allocation indexes in the link control information.

S502. The second downlink control information is determined according to the total number of downlink allocation indexes and the downlink allocation index of each first downlink control information, and the response message of the hybrid automatic retransmission request is each downed. It is generated according to the response information for the physical downlink shared channel corresponding to the link control information and the response information for the physical downlink shared channel corresponding to the second downlink control information.

S503. Sends the response message of the hybrid automatic repeat request to the base station.

The method for transmitting control information provided in this embodiment is used to complete the process in the fifth user device embodiment. The principles and technical effects of implementation for the method are similar and details are not described herein.

FIG. 8 is a flow chart of a sixth embodiment of the method for transmitting control information according to the present invention. As shown in FIG. 8, the method in this embodiment may include the following steps.

S601. Receives at least one first downlink control information transmitted by the base station.

S602. When the special scrambling process is performed on the CRC of the first downlink control information, the descramble processing is performed on the first downlink control information, the total number of downlink allocation indexes, and the first. Get the downlink allocation index of the downlink control information of.

Specifically, when the special scrambling process is performed on the CRC of the first downlink control information, the total number of downlink allocation indexes and the downlink allocation index of the first downlink control information are the first. Obtained from the downlink control information of No. 1 by performing the redundancy processing. If the special scrambling process is not performed on the CRC of the first downlink control information, only the downlink allocation index of the first downlink control information is directly acquired.

S603. The second downlink control information is determined according to the total number of downlink allocation indexes and the downlink allocation index of each first downlink control information, and the response message of the hybrid automatic retransmission request is each downed. It is generated according to the response information for the physical downlink shared channel corresponding to the link control information and the response information for the physical downlink shared channel corresponding to the second downlink control information.

S604. Sends the response message of the hybrid automatic repeat request to the base station.

The method for transmitting control information provided in this embodiment is used to complete the process in the sixth user device embodiment. The principles and technical effects of implementation for the method are similar and details are not described herein.

Based on the first embodiment, in the second to sixth embodiments of the present invention, the total number of downlink allocation indexes is further obtained by the five different methods described above. Therefore, in the second to sixth embodiments of the present invention, the same technical effect as the technical effect in the first embodiment can be obtained, while the following technical effects can be obtained. There are more effects. In all five methods described above, the total number of downlink allocation indexes is obtained by using existing signaling. Therefore, the additional signaling overhead is not increased.

FIG. 9 is a flow chart of a seventh embodiment of the method for transmitting control information according to the present invention. As shown in FIG. 9, this embodiment is performed by a base station and the method in this embodiment may include the following steps.

Step 701. At least one downlink control information is transmitted to the user equipment, where each downlink control information carries a downlink allocation index, and at least one downlink control information further increases the total number of downlink allocation indexes. Transport.

Each downlink allocation index is used to indicate the index of the physical downlink shared channel that corresponds to the first downlink control information that carries the downlink allocation index, or has a downlink semi-persistent scheduling release. Used to indicate the index of the physical downlink control channel to indicate, the total number of downlink allocation indexes is the amount of physical downlink shared channels corresponding to all the first downlink control information, or downlink quasi-persistent. The amount of physical downlink control channels that direct a scheduling release, or the amount of physical downlink shared channels that correspond to all the first downlink control information, and the physical downlink control channels that direct a downlink quasi-persistent scheduling release. The total amount.

Specifically, the downlink allocation index of each first downlink control information transmitted by the base station indicates the index of the physical downlink shared channel corresponding to the first downlink control information, and corresponds to the index. Thus, the total number of downlink allocation indexes is the amount of physical downlink shared channels corresponding to all the first downlink control information. Alternatively, some of the downlink allocation indexes of all the first downlink control information transmitted by the base station indicate the index of the physical downlink shared channel corresponding to the first downlink control information. Some dictate the index of the physical downlink control channel that dictates the downlink quasi-persistent scheduling release, and correspondingly the total number of downlink allocation indexes is the physics that corresponds to all the first downlink control information. The sum of the amount of downlink shared channels and the amount of physical downlink control channels that direct a downlink quasi-persistent scheduling release. Alternatively, the downlink allocation index of each first downlink control information transmitted by the base station indicates the index of the physical downlink control channel that directs the downlink quasi-persistent scheduling release, and is correspondingly down. The total number of link allocation indexes is the amount of physical downlink control channels that direct the downlink quasi-persistent scheduling release. In short, the Downlink Assignment Index (DAI for short) is the PDCCH / ePDCCH corresponding to the PDSCH assigned within a set of downlink-related subframes on one or more scheduled carriers, and down. Used to represent the cumulative amount of PDCCH / ePDCCH indicating the link SPS release. The total number of downlink allocation indexes is used to represent the total amount of PDCCHs indicating scheduled PDSCH and / or SPS releases.

Note that the bit amount of the total number of downlink allocation indexes, and the bit amount of the downlink allocation index, can be any one of 2 to 8 bits.

Step 702. Hybrid automatic repeats transmitted by user equipment according to the total number of downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink shared channel corresponding to each first downlink control information. Receive a request response message.

Step 703. According to the response message of the hybrid automatic repeat request, the response information for the physical downlink shared channel corresponding to each downlink control information is acquired.

The method for transmitting control information provided in this embodiment is used to complete the processing of the user equipment shown in FIG. The principles and technical effects of implementation for the method are similar and details are not described herein.

There may be a number of different specific implementations for step 701 in the seventh embodiment of the method for transmitting control information in the present invention. That is, there are a number of different specific implementations of how the total number of downlink allocation indexes is transmitted by the base station. The following uses five different implementations for specific explanations and explanations.

FIG. 10 is a flow chart of an eighth embodiment of the method for transmitting control information according to the present invention. As shown in FIG. 10, the method in this embodiment may include the following steps.

S801. If the downlink allocation index of each downlink control information is set separately for each downlink control information and the number of carriers corresponding to the downlink control information is larger than the threshold value of the first carrier amount, the downlink control information is down. Set the total number of link allocation indexes in the transmit power control TPC field in the downlink control information.

S802. Hybrid automatic repeats transmitted by user equipment according to the total number of downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink shared channel corresponding to each first downlink control information. Receive a request response message.

S803. According to the response message of the hybrid automatic repeat request, the response information for the physical downlink shared channel corresponding to each downlink control information is acquired.

In the optional case, when there are a plurality of downlink control information corresponding to carriers whose number of carriers is larger than the threshold value of the first carrier amount, the total number of downlink allocation indexes in S801 is controlled by the transmission power in the downlink control information. Setting in the TPC field specifically sets the total number of downlink allocation indexes in the TPC field in some of the downlink control information, or the physical uplink control channel PUCCH format, as described below. It is possible to set the resource index of 4 in the TPC field in some of the downlink control information.

In addition, the total number of downlink allocation indexes is set in the TPC field in some of the downlink control information, or the resource index of the physical uplink control channel PUCCH format 4 is set in the TPC field in some of the downlink control information. Specifically, setting in the field means that the number of carriers corresponding to the downlink control information is larger than the threshold value of the first carrier amount and the carrier corresponding to the downlink control information is supported. If the parity of the number of carriers in is the same as the parity of the threshold of the first carrier amount, set the total number of downlink allocation indexes in the TPC field in the downlink control information, or correspond to the downlink control information. If the number of carriers to be used is larger than the threshold value of the first carrier amount, and the parity of the number of carriers corresponding to the downlink control information is different from the parity of the threshold value of the first carrier amount, PUCCH The resource index of format 4 may be set in the TPC field in the downlink control information.

The method for transmitting control information provided in this embodiment is used to complete the process in the second base station embodiment. The principles and technical effects of implementation for the method are similar and details are not described herein.

FIG. 11 is a flow chart of a ninth embodiment of the method for transmitting control information according to the present invention. As shown in FIG. 11, the method in this embodiment may include the following steps.

S901. If the downlink allocation index of each downlink control information is set separately for each downlink control information and the downlink allocation index of the downlink control information is larger than the second threshold value, the total number of downlink allocation indexes. Is set in the TPC field in the downlink control information.

S902. Hybrid automatic repeats transmitted by user equipment according to the total number of downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink shared channel corresponding to each first downlink control information. Receive a request response message.

S903. According to the response message of the hybrid automatic repeat request, the response information for the physical downlink shared channel corresponding to each downlink control information is acquired.

When there are multiple downlink control information whose downlink allocation index is larger than the second threshold value, setting the total number of downlink allocation indexes in the TPC field in the downlink control information is specifically described below. Set the total number of downlink allocation indexes in the TPC field in some of the downlink control information, or set the PUCCH format 4 resource index in the TPC field in some of the downlink control information, as in. Can be to do. Further, the total number of downlink allocation indexes is set in the TPC field in some of the downlink control information, or the resource index of PUCCH format 4 is set in the TPC field in some of the downlink control information. Specifically, as shown below, the downlink allocation index of the downlink control information is larger than the second threshold value, and the parity of the downlink allocation index is the same as the parity of the second threshold value. If there is, either set the total number of downlink allocation indexes in the TPC field in the downlink control information, or the downlink allocation index in the downlink control information is greater than the second threshold and the parity of the downlink allocation index is When different from the parity of the second threshold value, the resource index of PUCCH format 4 may be set in the TPC field in the downlink control information.

The method for transmitting control information provided in this embodiment is used to complete the process in the third base station embodiment. The principles and technical effects of implementation for the method are similar and details are not described herein.

FIG. 12 is a flow chart of a tenth embodiment of the method for transmitting control information according to the present invention. As shown in FIG. 12, the method in this embodiment may include the following steps.

S1001. Set the downlink allocation index of each downlink control information separately for each downlink control information, set the total number of downlink allocation indexes in the total number field of the downlink allocation index in each downlink control information, and at least One downlink control information is transmitted to the user device.

S1002. Hybrid automatic repeats transmitted by user equipment according to the total number of downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink shared channel corresponding to each first downlink control information. Receive a request response message.

S1003. According to the response message of the hybrid automatic repeat request, the response information for the physical downlink shared channel corresponding to each downlink control information is acquired.

The method for transmitting control information provided in this embodiment is used to complete the process in the fourth base station embodiment. The principles and technical effects of implementation for the method are similar and details are not described herein.

FIG. 13 is a flow chart of an eleventh embodiment of the method for transmitting control information according to the present invention. As shown in FIG. 13, the method in this embodiment may include the following steps.

S1101. The downlink allocation index of each downlink control information is set separately for each downlink control information, and the total number of downlink allocation indexes is the total number of downlink allocation indexes in the downlink control information carried by the primary component carrier. Set in the field and send at least one downlink control information to the user device.

S1102. Hybrid automatic repeats transmitted by user equipment according to the total number of downlink allocation indexes, the downlink allocation index for each first downlink control information, and the physical downlink sharing channel corresponding to each first downlink control information. Receive a request response message.

S1103. According to the response message of the hybrid automatic repeat request, the response information for the physical downlink shared channel corresponding to each downlink control information is acquired.

The method for transmitting control information provided in this embodiment is used to complete the process in the fifth base station embodiment. The principles and technical effects of implementation for the method are similar and details are not described herein.

FIG. 14 is a flow chart of a twelfth embodiment of the method for transmitting control information according to the present invention. As shown in FIG. 14, the method in this embodiment may include the following steps.

S1201. The total number of downlink allocation indexes is set to at least one downlink control information, and special scrambling processing is performed on the cyclic redundancy check CRC code of the downlink control information that carries the total number of downlink allocation indexes. The scrambled downlink control information is acquired, and the scrambled downlink control information and the downlink control information in which the scrambling process is not performed are transmitted to the user device.

Both the scrambled downlink control information and the downlink control information that is not scrambled carry the downlink allocation index.

S1202. Hybrid automatic repeats transmitted by user equipment according to the total number of downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink sharing channel corresponding to each first downlink control information. Receive a request response message.

S1203. According to the response message of the hybrid automatic repeat request, the response information for the physical downlink shared channel corresponding to each downlink control information is acquired.

The method for transmitting control information provided in this embodiment is used to complete the process in the sixth base station embodiment. The principles and technical effects of implementation for the method are similar and details are not described herein.

Based on the seventh to twelfth embodiments of the above method for transmitting control information, further, if the amount of bits occupied by the total number of downlink allocation indexes is less than 5 bits, the downlink The amount of state corresponding to the amount of bits occupied by the total number of allocated indexes is obtained, and the state corresponding to the total number of downlink allocated indexes gets the remainder of the total number of downlink allocated indexes divided by the amount of states. Obtained by doing so, the total number of downlink allocation indexes is represented by using the state corresponding to the total number of downlink allocation indexes.

The transmission module 13 in the embodiment of the present invention can correspond to the transmitter of the user equipment, or can correspond to the transmitter / receiver of the user equipment. The receiving module 11 can correspond to the receiver of the user equipment, or can correspond to the transmitter / receiver of the user equipment. The processing module 12 can correspond to the processor of the user equipment. The processor herein can be a CPU, or an ASIC, or one or more integrated circuits to complete the implementation of this embodiment of the invention. The user equipment may further include memory. The memory is configured to store the instruction code. The processor activates an instruction code in the memory to control the transmission module 13 and the reception module 11 in the embodiment of the present invention, and executes the above-described operation.

It should be noted that the receiving module 22 in the embodiment of the present invention can correspond to the receiver of the base station or can correspond to the transmitter and receiver of the base station. The transmission module 21 can correspond to the transmitter of the base station, or can correspond to the transmitter and receiver of the base station. The processing module 23 can correspond to the processor of the base station. The processor in the present specification is a central processing unit (CPU), an integrated circuit for a specific application (Application Specific Integrated Circuit, ASIC), or one for completing the implementation of the present embodiment of the present invention. It can be multiple integrated circuits. The base station may further include memory. The memory is configured to store the instruction code. The processor activates an instruction code in the memory to control the receiving module 22 and the transmitting module 21 in the embodiment of the present invention, and executes the above-described operation.

It should be understood that in some of the embodiments provided in the present invention, the disclosed devices and methods may be implemented in other ways. For example, the examples of the devices described are merely exemplary. For example, the unit division is only a logical functional division, and may be another division when it is actually implemented. For example, multiple units or components may be combined or integrated into another system, or some properties may be ignored or not implemented. In addition, the shown or discussed mutual or direct connections or communication connections can be implemented by using several interfaces. Indirect connections or communication connections between devices or units can be implemented electrically, mechanically, or in other forms.

A unit described as a separate part may or may not be physically separated, and the part indicated as a unit may be a physical unit or not a physical unit. That is, the components may be installed in one location or distributed over multiple network units. Some or all of the units may be selected to achieve the objectives of the solutions of the examples, according to actual requirements.

In addition, the functional units in the embodiments of the present invention can be integrated into one processing unit, or each of the units can physically exist independently, or two or more units can be one unit. Will be integrated into. The integrated unit can be implemented in the form of hardware, or it can be implemented in the form of hardware in addition to the software functional unit.

When the aforementioned integrated units are implemented in the form of software functional units, the integrated units may be stored on a computer-readable storage medium. The software functional unit is stored on a storage medium and is a computer device (which can be a personal computer, server, network device, or the like), or some steps of the method described in the embodiments of the present invention. Includes a processor for implementing. The above-mentioned storage medium can store program code such as a USB flash drive, a removable hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk, or an optical disk. Includes media.

For convenience and brief description, it can be clearly understood by those skilled in the art that the division of functional modules described above is only used as an example for illustration purposes. In a practical application example, the above-mentioned functions can be assigned to different function modules and can be implemented according to the requirements, that is, because the internal structure of the device implements all or some of the above-mentioned functions. Divided into different functional modules. Regarding the detailed working process of the above-mentioned apparatus, it is desired to refer to the corresponding process in the embodiment of the above-mentioned method, and the details are not described again herein.

Finally, it should be noted that the aforementioned examples are intended only to illustrate the technical solutions of the invention, but not to limit the invention. The present invention will be described in detail with reference to the aforementioned examples, but those skilled in the art will describe them in the aforementioned examples without departing from the scope of the technical solutions of the embodiments of the present invention. It should be understood that further modifications can be made to the technical solutions that have been made, or equivalent substitutions can be made for some or all of the technical properties.

Claims (22)

A receiving module configured to receive at least one first downlink control information transmitted by a base station, each first downlink control information carrying a downlink allocation index and at least. A receiving module in which one said first downlink control information further carries the total number of downlink allocation indexes.
The response message of the hybrid automatic repeat request is the total number of the downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink sharing corresponding to each first downlink control information. Processing modules configured to generate according to the channel,
Includes a transmission module configured to transmit the response message of the hybrid automatic repeat request to the base station.
Each downlink allocation index is used to indicate the index of the physical downlink shared channel corresponding to the downlink control information carrying the downlink allocation index, or indicates a downlink semi-persistent scheduling release. The physical downlink shared channel that corresponds to the downlink control information that is used to indicate the index of the physical downlink control channel or carries the downlink allocation index, and the physical that directs the downlink quasi-persistent scheduling release. Used to indicate the index of the downlink control channel, the total number of the downlink allocation indexes indicates the amount of physical downlink shared channels corresponding to all the downlink control information, or the downlink semi-persistent scheduling release. total der between the amount of physical downlink control channel that instructs the physical quantity of the downlink control channel, or the amount and downlink semi persistent scheduling releases of the physical downlink shared channel corresponding to all downlink control information is,
The total number of the downlink allocation indexes is represented by using states, the state being the downlink allocation divided by the amount of states corresponding to the amount of bits occupied by the total number of said downlink allocation indexes. A device obtained by getting the remainder of the total number of indexes . The processing module
The response information for the physical downlink sharing channel corresponding to each first downlink control information is separated according to whether or not the physical downlink sharing channel corresponding to each first downlink control information is correctly decoded. Generated in
The sort result is acquired by sorting the downlink allocation index of all the first downlink control information, and the downlink allocation index of the second downlink control information is used as the sort result and the downlink allocation index. The response information to the physical downlink shared channel corresponding to the second downlink control information is a negative response (NACK).
The response message of the hybrid automatic retransmission request is the response information to the physical downlink sharing channel corresponding to each first downlink control information, and the physical downlink sharing corresponding to the second downlink control information. The response information to the physical downlink shared channel corresponding to the respective first downlink control information and the physical down corresponding to the second downlink control information are generated according to the response information to the channel. The arrangement order of the response information with respect to the link sharing channel is the same as the order of the downlink allocation index of the first downlink control information and the downlink allocation index of the second downlink control information. The response information to the physical downlink shared channel corresponding to each first downlink control information and the response information to the physical downlink shared channel corresponding to the second downlink control information are hybrid automatic. The device of claim 1, configured to be in a resend request response message. The receiving module
A first that receives at least one first downlink control information transmitted by the base station, acquires the downlink allocation index of each first downlink control information, and is carried by a primary component carrier. The apparatus according to claim 1 or 2, wherein the total number of the downlink allocation indexes in the total number field of the downlink allocation indexes in the downlink control information of 1 is acquired. The device according to any one of claims 1 to 3, wherein the second downlink control information is the overlooked downlink control information. The amount of bits occupied by the total number of downlink allocation indexes is 2 bits, and the amount of bits occupied by the downlink allocation index is 2, according to any one of claims 1 to 4. apparatus. A transmission module configured to transmit at least one downlink control information to a user device, each downlink control information carrying a downlink allocation index, and at least one said downlink control information. A transmit module that further carries the total number of downlink allocation indexes,
The response message of the hybrid automatic repeat request transmitted by the user equipment according to the total number of the downlink allocation indexes, the downlink allocation index of each downlink control information, and the physical downlink sharing channel corresponding to each downlink control information. With a receiving module configured to receive
A processing module configured to acquire response information for a physical downlink shared channel corresponding to each downlink control information according to the response message of the hybrid automatic repeat request is included.
The downlink control information includes a first downlink control information and a second downlink control information, and each downlink allocation index is physically down corresponding to the downlink control information carrying the downlink allocation index. Used to indicate the index of the link shared channel, or to indicate the index of the physical downlink control channel to indicate the downlink quasi-persistent scheduling release, or to carry the downlink allocation index. Used to indicate the index of the physical downlink shared channel corresponding to the downlink control information to be used, and the physical downlink control channel to indicate the downlink quasi-persistent scheduling release, and the total number of the downlink allocation indexes is all. The amount of physical downlink shared channels that correspond to the downlink control information, or the amount of physical downlink control channels that direct a downlink quasi-persistent scheduling release, or the physical downlink shared channels that correspond to all the downlink control information. total der between the amount of physical downlink control channel that instructs the quantity and downlink semi persistent scheduling releases is,
The total number of the downlink allocation indexes is represented by using states, the state being the downlink allocation divided by the amount of states corresponding to the amount of bits occupied by the total number of said downlink allocation indexes. A device obtained by getting the remainder of the total number of indexes . The transmission module
At least one of the downlink control information is transmitted to the user device, where the downlink allocation index of each downlink control information is set separately for each downlink control information, and the downlink allocation index is set. 6. The apparatus of claim 6 , wherein the total number of is set in the total number field of the downlink allocation index in each downlink control information. The device according to claim 6 or 7 , wherein the second downlink control information is the overlooked downlink control information. The amount of bits occupied by the total number of downlink allocation indexes is 2 bits, and the amount of bits occupied by the downlink allocation index is 2, according to any one of claims 6 to 8 . apparatus. A step of receiving at least one first downlink control information transmitted by a base station, wherein each first downlink control information carries a downlink allocation index and at least one of the first downlink control information. The steps and the downlink control information further carry the total number of downlink allocation indexes.
The response message of the hybrid automatic repeat request is the total number of the downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink sharing corresponding to each first downlink control information. Steps to generate according to the channel and
Including a step of transmitting a response message of the hybrid automatic repeat request to the base station.
Each downlink allocation index is used to indicate the index of the physical downlink shared channel corresponding to the downlink control information carrying the downlink allocation index, or indicates a downlink semi-persistent scheduling release. A physical downlink shared channel that is used to indicate the index of a physical downlink control channel or that corresponds to the downlink control information that carries the downlink allocation index, and a physical that directs a downlink quasi-persistent scheduling release. Used to indicate the index of the downlink control channel, the total number of the downlink allocation indexes indicates the amount of physical downlink shared channels corresponding to all the downlink control information, or the downlink semi-persistent scheduling release. total der between the amount of physical downlink control channel that instructs the physical quantity of the downlink control channel, or the amount and downlink semi persistent scheduling releases of the physical downlink shared channel corresponding to all downlink control information is,
The total number of the downlink allocation indexes is represented by using states, the state being the downlink allocation divided by the amount of states corresponding to the amount of bits occupied by the total number of said downlink allocation indexes. A method for sending control information, which is obtained by getting the remainder of the total number of indexes . The response message of the hybrid automatic repeat request is the total number of the downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink sharing corresponding to each first downlink control information. The steps generated according to the channel
The response information for the physical downlink sharing channel corresponding to each first downlink control information is separated according to whether or not the physical downlink sharing channel corresponding to each first downlink control information is correctly decoded. And the steps to generate
The sort result is acquired by sorting the downlink allocation index of all the first downlink control information, and the downlink allocation index of the second downlink control information is used as the sort result and the downlink allocation index. The step and the step in which the response information to the physical downlink shared channel corresponding to the second downlink control information is a negative response (NACK), which is determined according to the total number of the steps.
The response message of the hybrid automatic retransmission request is the response information to the physical downlink sharing channel corresponding to each first downlink control information, and the physical downlink sharing corresponding to the second downlink control information. A step of generating according to the response information to the channel, the response information to the physical downlink shared channel corresponding to each first downlink control information, and the physical corresponding to the second downlink control information. The arrangement order of the response information with respect to the downlink shared channel is the same as the order of the downlink allocation index of the first downlink control information and the downlink allocation index of the second downlink control information. , The response information to the physical downlink shared channel corresponding to each first downlink control information, and the response information to the physical downlink shared channel corresponding to the second downlink control information are the hybrid. The method of claim 10 , comprising the steps in the response message of the automatic resend request. In the step of receiving at least one first downlink control information transmitted by the base station, each first downlink control information carries a downlink allocation index and at least one said first. The downlink control information of the above further carries the total number of downlink allocation indexes.
The at least one first downlink control information transmitted by the base station is received, the downlink allocation index of each first downlink control information is acquired, and each first downlink control is obtained. 10. The method of claim 10 or 11 , comprising the step of retrieving the total number of said downlink allocation indexes in the total number of downlink allocation indexes field in the information. The method according to any one of claims 10 to 12 , wherein the second downlink control information is the overlooked downlink control information. The amount of bits occupied by the total number of downlink allocation indexes is 2 bits, and the amount of bits occupied by the downlink allocation index is 2, according to any one of claims 10 to 13 . Method. In the step of transmitting at least one downlink control information to the user equipment, each downlink control information carries a downlink allocation index, and at least one said downlink control information is the total number of downlink allocation indexes. Further transport, steps and
The response message of the hybrid automatic repeat request transmitted by the user equipment according to the total number of the downlink allocation indexes, the downlink allocation index of each downlink control information, and the physical downlink sharing channel corresponding to each downlink control information. And the steps to receive
Including the step of acquiring the response information for the physical downlink shared channel corresponding to each downlink control information according to the response message of the hybrid automatic repeat request.
The downlink control information includes a first downlink control information and a second downlink control information, and each downlink allocation index is physically down corresponding to the downlink control information carrying the downlink allocation index. Used to indicate the index of the link shared channel, or to indicate the index of the physical downlink control channel to indicate the downlink quasi-persistent scheduling release, or to carry the downlink allocation index. Used to indicate the index of the physical downlink shared channel corresponding to the downlink control information to be used, and the physical downlink control channel to indicate the downlink quasi-persistent scheduling release, and the total number of the downlink allocation indexes is all. The amount of physical downlink shared channels that correspond to the downlink control information, or the amount of physical downlink control channels that direct a downlink quasi-persistent scheduling release, or the physical downlink shared channels that correspond to all the downlink control information. total der between the amount of physical downlink control channel that instructs the quantity and downlink semi persistent scheduling releases is,
The total number of the downlink allocation indexes is represented by using states, the state being the downlink allocation divided by the amount of states corresponding to the amount of bits occupied by the total number of said downlink allocation indexes. A method for sending control information, which is obtained by getting the remainder of the total number of indexes . In the step of transmitting at least one downlink control information to the user equipment, each downlink control information carries the downlink allocation index, and at least one of the downlink control information is the downlink allocation index. The step of further transporting the total number is
The downlink allocation index of each downlink control information is set separately for each downlink control information, and the total number of the downlink allocation indexes is set in the total number field of the downlink allocation index in each downlink control information. 15. The method of claim 15 , comprising the step of transmitting at least one of the downlink control information to the user equipment. The method according to claim 15 or 16 , wherein the second downlink control information is the overlooked downlink control information. The amount of bits occupied by the total number of downlink allocation indexes is 2 bits, and the amount of bits occupied by the downlink allocation index is 2, according to any one of claims 15 to 17 . Method. A receiver configured to receive at least one first downlink control information transmitted by a base station, each first downlink control information carrying a downlink allocation index and at least. The receiver and the receiver, wherein one said first downlink control information further carries the total number of downlink allocation indexes.
The response message of the hybrid automatic repeat request is the total number of the downlink allocation indexes, the downlink allocation index of each first downlink control information, and the physical downlink sharing corresponding to each first downlink control information. With a processor configured to generate according to the channel,
Including a transmitter configured to transmit the response message of the hybrid automatic repeat request to the base station.
Each downlink allocation index is used to indicate the index of the physical downlink shared channel corresponding to the downlink control information carrying the downlink allocation index, or indicates a downlink semi-persistent scheduling release. A physical downlink shared channel that is used to indicate the index of a physical downlink control channel or that corresponds to the downlink control information that carries the downlink allocation index, and a physical that directs a downlink semi-persistent scheduling release. Used to indicate the index of the downlink control channel, the total number of the downlink allocation indexes indicates the amount of physical downlink shared channels corresponding to all the downlink control information, or the downlink semi-persistent scheduling release. total der between the amount of physical downlink control channel that instructs the physical quantity of the downlink control channel, or the amount and downlink semi persistent scheduling releases of the physical downlink shared channel corresponding to all downlink control information is,
The total number of the downlink allocation indexes is represented by using states, the state being the downlink allocation divided by the amount of states corresponding to the amount of bits occupied by the total number of said downlink allocation indexes. A device obtained by getting the remainder of the total number of indexes . A transmitter configured to transmit at least one downlink control information to a user device, each downlink control information carrying a downlink allocation index, and at least one said downlink control information. With the transmitter, which further carries the total number of downlink allocation indexes,
Response message of the hybrid automatic repeat request transmitted by the user equipment according to the total number of the downlink allocation indexes, the downlink allocation index of each downlink control information, and the physical downlink sharing channel corresponding to each downlink control information. With a receiver configured to receive
A processor configured to acquire response information for a physical downlink shared channel corresponding to each downlink control information according to the response message of the hybrid automatic repeat request.
The downlink control information includes a first downlink control information and a second downlink control information, and each downlink allocation index is physically down corresponding to the downlink control information carrying the downlink allocation index. Used to indicate the index of the link shared channel, or to indicate the index of the physical downlink control channel to indicate the downlink quasi-persistent scheduling release, or to carry the downlink allocation index. Used to indicate the index of the physical downlink shared channel corresponding to the downlink control information to be used, and the physical downlink control channel to indicate the downlink quasi-persistent scheduling release, and the total number of the downlink allocation indexes is all. The amount of physical downlink shared channels that correspond to the downlink control information, or the amount of physical downlink control channels that direct a downlink quasi-persistent scheduling release, or the physical downlink shared channels that correspond to all the downlink control information. total der between the amount of physical downlink control channel that instructs the quantity and downlink semi persistent scheduling releases is,
The total number of the downlink allocation indexes is represented by using states, the state being the downlink allocation divided by the amount of states corresponding to the amount of bits occupied by the total number of said downlink allocation indexes. A device obtained by getting the remainder of the total number of indexes . A computer-readable storage medium on which an instruction is recorded, wherein the instruction causes the computer to perform the method according to any one of claims 10 to 18 . A program that causes a computer to perform the method according to any one of claims 10 to 18 .

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