CN102265695B - Scheduling method and device, control information processing method and device - Google Patents

Abstract

The present invention discloses a scheduling method and device and a method and device for processing control information, wherein the scheduling method comprises the steps of sending a first downlink control information of DCI format 1C to UE, wherein the first downlink control information comprises a first MCS information, the first MCS information is used for determining the transmission blocksize value, and the TBS value belongs to a first TBS table corresponding to the DCI format 1C; sending a second downlink control information of DCI format 1A to UE, wherein the second downlink control information comprises indication information and a second MCS information, the second MCS information is used for determining the TBS value; and wherein, if the TBS value does not belong to a secondTBS table corresponding to the DCI format 1A, the indication information is used for indicating the determined TBS value according to the second MCS information and the first TBS table, and the second MCS information is the same as the first MCS information, or, if the TBS value belongs to the second TBS table corresponding to the DCI format 1A, the indication information is used for indicating the determined TBS value according to the second MCS information, the second TBS table and the lowest order of TPC-PUCCH. The scheduling method and device and the method and device for processing control information enable the determined TBS value according to the downlink control information of DCI format 1A sent by the UE according to eNode B and the determined TBS value according to the downlinkcontrol information of DCI format 1C to be the same as each other, and enable the UE to merge the TB initially transmitted by the eNode B and the retransmitted TB, for decoding, thereby obtaining retransmission gain.

Description

Scheduling method and device, control information processing method and device

technical field

The present invention relates to the field of communication technology, in particular to a scheduling method and equipment.

Background of the invention

In LTE (Long Term Evolution, long-term evolution) technology, eNodeB (Evolved Node Base Station, evolved base station) can send DCI (Downlink Control Information, downlink control information) format 1C ( That is, the downlink control information of DCI format 1C) or DCI format 1A (ie DCI format 1A) is sent to UE (User Equipment, user equipment).

DCI format 1C corresponds to a TBS (Transport Block Size, transport block size) table, the first TBS table as shown in Figure 1, the number of the row where the symbol I _TBS is in the first TBS table is a serial number, and the number of the row where the symbol TBS is TBS value, the unit of TBS value is bit (bit). The UE that receives the downlink control information of DCI format 1C determines the _ITBS sequence number through the MCS (Modulation and Coding Scheme, modulation and coding scheme) in the downlink control information, searches the first TBS table through the sequence number, and determines the TBS value for this scheduling.

The DCI format 1A corresponds to a TBS table, such as the second TBS table shown in FIG. 2 , and the numbers in the second TBS table are TBS values, and the unit is bit. The UE receiving the downlink control information of DCI format 1A determines the column number through the TPC-PUCCH (Transmit Power Control-Physical Uplink Control CHannel, the transmission power control command of the uplink physical control channel) in the downlink control information, and determines the row number through the MCS number, look up the second TBS table through the column number and row number, and determine the TBS value for this scheduling.

It can be seen that DCI format 1C is compact and consumes less PDCCH resources, but the range of TBS values indicated by it is smaller. DCI format 1A is not as compact as DCI format 1C, consumes more PDCCH resources, but the range of TBS values indicated by its TBS table is larger. The RB (Resource Block, resource block) allocation type of DCI format 1C is fixedly indicated by DVRB (DistributedVirtual Resource Bock, distributed virtual RB). The RB allocation type of DCI format 1A can be indicated by DVRB or LVRB (Localized Virtual Resource Block, centralized virtual RB), which is more flexible.

Usually, when the TBS value of the scheduled TB (Transport Block, transport block) can be supported by DCI format 1C, that is, the TBS value belongs to the first TBS table, the eNodeB preferentially sends the downlink control information of DCI format 1C for UE to determine The TBS value of this scheduling. However, if the TBS value scheduled this time is not in the second TBS table, due to the limitation of the DVRB resource allocation type of DCI format 1C, the eNodeB needs to send downlink control information of DCI format 1A for the UE to determine the TBS value of the retransmission scheduled TB At this time, the TBS value determined by the UE according to the downlink control information of DCI format 1A is different from the TBS value determined by the downlink control information of DCI format 1C. As a result, the UE cannot combine the TB initially transmitted by the eNodeB with the retransmitted TB for decoding, and the UE cannot obtain Retransmission gain.

Contents of the invention

The present invention provides a scheduling method and device, and a method and device for processing control information, so that the TBS value determined by the UE according to the downlink control information of DCI format 1A sent by the eNodeB is the same as the TBS value determined by the downlink control information of DCI format 1C .

An aspect of the present invention provides a scheduling method, which may include:

Send the first downlink control information of the downlink control information DCI format 1C to the user equipment UE, the first downlink control information includes the first modulation and coding mode MCS information, and the first MCS information is used to determine the transport block size TBS value , the TBS value belongs to the first TBS table corresponding to DCI format 1C;

Sending second downlink control information in DCI format 1A to the UE, where the second downlink control information includes indication information and second MCS information, and the second MCS information is used to determine the TBS value;

Wherein, if the TBS value does not belong to the second TBS table corresponding to DCI format 1A, the indication information is used to indicate that the TBS value is determined according to the second MCS information and the first TBS table, and the second MCS The information is the same as the first MCS information; or, if the TBS value belongs to the second TBS table corresponding to DCI format 1A, the indication information is used to indicate that according to the second MCS information, the second TBS table and the uplink physical The lowest bit of the transmission power control command TPC-PUCCH of the control channel determines the TBS value.

Another aspect of the present invention provides a scheduling device, which may include:

The first sending unit is configured to send the first downlink control information of the downlink control information DCI format 1C to the user equipment UE, the first downlink control information includes the first modulation and coding mode MCS information, and the first MCS information uses For determining the TBS value of the transport block size, the TBS value belongs to the first TBS table corresponding to DCI format 1C;

The second sending unit is configured to send second downlink control information of DCI format 1A to the UE, the second downlink control information includes indication information and second MCS information, and the second MCS information is used to determine the TBS value, wherein, if the TBS value does not belong to the second TBS table corresponding to DCI format 1A, the indication information is used to indicate that the TBS value is determined according to the second MCS information and the first TBS table, and the second The second MCS information is the same as the first MCS information; or, if the TBS value belongs to the second TBS table corresponding to DCI format 1A, the indication information is used to indicate that according to the second MCS information, the second TBS table and The lowest bit of the transmission power control command TPC-PUCCH of the uplink physical control channel determines the TBS value.

An aspect of the present invention provides a method for processing control information, which may include:

Receive first downlink control information in DCI format 1C, where the first downlink control information includes first MCS information, and determine a TBS value according to the first MCS information and a first TBS table corresponding to the DCI format 1C;

Receive second downlink control information in DCI format 1A, the second downlink control information includes indication information and second MCS information, and determine the TBS value according to the indication of the indication information; wherein, the indication information indicates that according to the second MCS information Determine the TBS value with the first TBS table, and the second MCS information is the same as the first MCS information; or, the indication information indicates the lowest TBS value according to the second MCS information, the second TBS table and TPC-PUCCH bits determine the TBS value.

Another aspect of the present invention provides a device for processing control information, which may include:

A receiving unit, configured to receive first downlink control information in DCI format 1C, where the first downlink control information includes first MCS information;

a processing unit, configured to determine a TBS value according to the first MCS information and the first TBS table corresponding to the DCI format 1C;

The receiving unit is also used to receive the second downlink control information of DCI format 1A, the second downlink control information includes indication information and second MCS information, and determines the TBS value according to the indication of the indication information; wherein, the indication information indicating that the TBS value is determined according to the second MCS information and the first TBS table, and the second MCS information is the same as the first MCS information; or, the indication information indicates that according to the second MCS information, the second The least significant bit of the TBS table and TPC-PUCCH determines the TBS value.

The above technical solution makes the TBS value determined by the UE according to the downlink control information of DCI format 1A sent by the eNodeB the same as the TBS value determined by the downlink control information of DCI format 1C, so that the UE can combine the TB initially transmitted by the eNodeB and the retransmitted TB to make Decode to obtain retransmission gain.

Brief description of the drawings

FIG. 1 is a first TBS table corresponding to DCI format 1C.

FIG. 2 is a second TBS table corresponding to DCI format 1A.

Fig. 3 is a schematic flowchart of a scheduling method provided by an embodiment of the present invention.

FIG. 4 is a schematic flowchart of an application scenario of a scheduling method provided by an embodiment of the present invention.

Fig. 5 is a schematic diagram of a scheduling device provided by an embodiment of the present invention.

FIG. 6 is a schematic flowchart of a method for processing control information provided by an embodiment of the present invention.

FIG. 7 is a first structural schematic diagram of a device for processing control information provided by an embodiment of the present invention.

FIG. 8 is a second schematic diagram of the structure of a device for processing control information provided by an embodiment of the present invention.

Modes of Carrying Out the Invention

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figure 3, an embodiment of the present invention provides a scheduling method, which may include:

31. Send the first downlink control information of DCI (Downlink Control Information, downlink control information) format 1C to UE (User Equipment, user equipment), the first downlink control information includes the first MCS (Modulation and Coding Scheme, Modulation and coding mode) information, the first MCS information is used to determine the transport block size TBS (Transport Block Size, transport block size) value, and the TBS value belongs to the first TBS table corresponding to DCI format 1C.

32. Send second downlink control information in DCI format 1A to the UE, where the second downlink control information includes indication information and second MCS information, and the second MCS information is used to determine the TBS value;

Wherein, if the TBS value does not belong to the second TBS table corresponding to DCI format 1A, the indication information is used to indicate that the TBS value is determined according to the second MCS information and the first TBS table, and the second MCS The information is the same as the first MCS information; or, if the TBS value belongs to the second TBS table corresponding to DCI format 1A, the indication information is used to indicate that according to the second MCS information, the second TBS table and TPC- The lowest bit of PUCCH (Transmit Power Control-Physical Uplink Control Channel, transmission power control command of the uplink physical control channel) determines the TBS value.

The execution subject of the scheduling method in the embodiment of the present invention may be an eNodeB (Evolved Node Base Station, evolved base station). The eNodeB can send downlink control information of DCI format 1C and/or DCI format 1A to the UE through PDCCH (Physical Downlink Control Channel, physical downlink control channel).

The above technical solution can make the TBS value determined by the UE according to the downlink control information of DCI format 1A sent by the eNodeB be the same as the TBS value determined by the downlink control information of DCI format 1C, so that the UE can combine the TB initially transmitted by the eNodeB and the retransmitted TB Do decoding to obtain retransmission gain.

Optionally, in the above step 32, the second downlink control information of DCI format 1A is sent, wherein the indication information in the second downlink control information occupies the highest bit of the TPC-PUCCH.

The advantages of indicating that the highest bit of the TPC-PUCCH is occupied by the indication information are:

In DCI format 1A defined by the current LTE protocol: TPC-PUCCH is defined as 2 bits, wherein the lowest bit indicates the column number of the second TBS table corresponding to DCI format 1A, and the highest bit is reserved and not used. Then the indication information occupies the highest bit of the TPC-PUCCH, and there is no need to change the DCI format 1A defined by the current LTE protocol.

Those of ordinary skill in the art can understand that the indication information is not limited to only occupying the highest bit of the TPC-PUCCH, and other ways of modifying the DCI format 1A defined by the current LTE protocol to carry the indication information should be covered by the present invention within the scope of protection.

Optionally, the indication information occupies the highest bit of the TPC-PUCCH, and when the highest bit of the TPC-PUCCH is 1, it is used to indicate that the TBS value is determined according to the second MCS information and the first TBS table, and the first The second MCS information is the same as the first MCS information; when the highest bit of TPC-PUCCH is 0, it is used to indicate that the TBS value is determined according to the second MCS information, the second TBS table and the lowest bit of TPC-PUCCH .

Alternatively, the indication information occupies the highest bit of the TPC-PUCCH, and when the highest bit of the TPC-PUCCH is 0, it is used to indicate that the TBS value is determined according to the second MCS information and the first TBS table, and the second MCS The information is the same as the first MCS information; when the highest bit of the TPC-PUCCH is 1, it is used to indicate that the TBS value is determined according to the second MCS information, the second TBS table, and the lowest bit of the TPC-PUCCH.

An embodiment of the present invention provides a downlink scheduling method, which may also include:

It is judged whether the TBS value corresponding to the first MSC information belongs to the second TBS table corresponding to DCI format 1A. Furthermore, if the TBS value corresponding to the first MSC information does not belong to the second TBS table corresponding to DCI format 1A, the indication information is used to indicate that the TBS value is determined according to the second MCS information and the first TBS table, and the The second MCS information is the same as the first MCS information; or, if the TBS value corresponding to the first MSC information belongs to the second TBS table corresponding to DCI format 1A, the indication information is used to indicate that according to the second MCS information , the second TBS table and the lowest bit of the TPC-PUCCH to determine the TBS value. It should be noted that the TBS value corresponding to the first MSC information here refers to the TBS value that can be determined according to the first MSC information (or the first MSC information and other information). It can be understood that the first MSC information sent by the eNodeB For determining the TBS value, the first MSC information may be described as corresponding to the TBS value. Similar description methods will not be described in detail below.

Next, refer to the first TBS table corresponding to DCI format 1C as shown in FIG. 1 , where the first TBS table includes the correspondence between TBS values and serial numbers.

In the above step 31, the first downlink control information of DCI format 1C is sent to the UE, the first downlink control information includes the first MCS information, and the first MCS information is used to calculate the sequence number corresponding to the TBS value to determine the TBS value.

Optionally, the first MCS information is 5 bits, and is used to calculate a sequence number corresponding to the TBS value, and the sequence number includes 0-31.

In the above step 32, the second downlink control information of DCI format 1A is sent to the UE. The second downlink control information includes indication information and second MCS information. The TBS value does not belong to the second TBS table corresponding to DCI format 1A, and the indication information uses In order to indicate that the TBS value is determined according to the second MCS information and the first TBS table, and the second MCS information is the same as the first MCS information, the second MCS information is also used to calculate the TBS value corresponding to the TBS value sequence number to determine the TBS value.

Therefore, when the TBS value corresponding to the first MCS belongs to the first TBS table corresponding to DCI format 1C, but does not belong to the second TBS table corresponding to DCI format 1A, the TBS value determined according to the first MCS sent by the eNodeB and the second MCS value are implemented. The determined TBS values are the same, so that the UE can combine the TB initially transmitted by the eNodeB and the retransmitted TB for decoding, thereby obtaining retransmission gain.

Or, referring to the first TBS table corresponding to DCI format 1C as shown in FIG. 1, the first TBS table includes the correspondence between TBS values and serial numbers, and referring to the second TBS table corresponding to DCI format 1A as shown in FIG. 2, The second TBS table includes correspondences between TBS values and row numbers and column numbers.

In the above step 31, the first downlink control information of DCI format 1C is sent to the UE, the first downlink control information includes the first MCS information, and the first MCS information is used to calculate the sequence number corresponding to the TBS value to determine the TBS value.

In the above step 32, the second downlink control information of DCI format 1A is sent to the UE. The second downlink control information includes indication information and second MCS information. The TBS value belongs to the second TBS table corresponding to DCI format 1A, and the indication information is used for Indicates that the TBS value is determined according to the second MCS information, the second TBS table, and the lowest bit of the TPC-PUCCH.

Wherein, the second MCS information is used to calculate the row number of the second TBS table, the lowest bit of the TPC-PUCCH is used to calculate the column number of the second TBS table, and the second TBS table is determined according to the row number and the column number. TBS value.

Optionally, the second MCS information is 5 bits, and is used to calculate the row number of the second TBS table, and the row number includes 1-28.

Optionally, when the lowest bit of TPC-PUCCH is 0, the column number used to calculate the second TBS table is column 1, and when the lowest bit of TPC-PUCCH is 1, it is used to calculate the column number of the second TBS table The number is the second column, or, when the lowest bit of PC-PUCCH is 1, the column number used to calculate the second TBS table is the first column, and when the lowest bit of TPC-PUCCH is 0, it is used to calculate the second TBS table The column number of the TBS table is column 2.

Therefore, when the TBS value corresponding to the first MCS belongs to the first TBS table corresponding to DCI format 1C, and also belongs to the second TBS table corresponding to DCI format 1A, the TBS value determined according to the first MCS sent by the eNodeB and according to the second The MCS information and the TBS value determined by the lowest bit of the TPC-PUCCH are the same, so that the UE can combine the TB initially transmitted by the eNodeB and the retransmitted TB for decoding, thereby obtaining retransmission gain.

Optionally, in the scheduling method in the embodiment of the present invention, the first downlink control information and/or the second downlink control information is sent through downlink signaling, and the downlink signaling may be a system message, or a paging message, or One or more of random access response messages.

Exemplarily, as shown in FIG. 4, the scheduling method of the embodiment of the present invention is described, including:

41. The eNodeB sends the first downlink control information of the DCI format 1C to the UE.

When the TB is first transmitted to the UE, the eNodeB sends the first downlink control information of DCI format 1C to the UE. The first downlink control information includes the first MCS information, and the first MCS information is used to determine the TBS value. The TBS value belongs to the DCI format 1C The corresponding first TBS table, specifically, the first MCS information is used to calculate the serial number corresponding to the TBS value, so as to determine the TBS value.

Those skilled in the art can know that when the TBS value of the scheduled TB can be supported by DCI format 1C, that is, the TBS value belongs to the first TBS table, the eNodeB preferentially chooses to send the downlink control information of DCI format 1C for the UE to determine this time. Scheduled TBS value.

Exemplarily, for example, the sequence number 4 is obtained by calculating the first MCS information, so that the UE receiving the first downlink control information can determine the TBS value scheduled by the eNodeB this time. Or, for example, the sequence number 2 is obtained by calculating the first MCS information, so that the UE receiving the first downlink control information can determine the TBS value scheduled by the eNodeB this time.

Correspondingly, the UE receives first downlink control information in DCI format 1C, where the first downlink control information includes first MCS information, and the UE determines a TBS value according to the first MCS information.

Exemplarily, if the sequence number 4 is calculated according to the first MCS information, according to the first TBS table shown in FIG. Or, if the serial number 2 is calculated according to the first MCS information, and the TBS value corresponding to the serial number 2 is 72 according to the first TBS table shown in FIG. 1 , the UE can determine that the TBS value of this eNodeB scheduling is 72.

42. The eNodeB judges whether the TBS value corresponding to the first MCS information belongs to the second TBS table corresponding to DCI format 1A.

When the TB needs to be retransmitted to the UE, the eNodeB judges whether the TBS value corresponding to the first MCS information in 41 belongs to the second TBS table corresponding to DCI format 1A, if the judgment result is no, go to 43 , if the judgment result is yes, go to 44 .

It should be noted that the TBS value corresponding to the first MSC information here refers to the TBS value that can be determined according to the first MSC information (or the first MSC information and other information). It can be understood that the first MSC information sent by the eNodeB For determining the TBS value, the first MSC information may be described as corresponding to the TBS value.

43. The eNodeB sends the second downlink control information of DCI format 1A, the second downlink control information includes indication information and second MCS information, and the indication information is used to indicate that the TBS value is determined according to the second MCS information and the first TBS table, and the second The MCS information is the same as the first MCS information.

If the TBS value is 136, which does not belong to the second TBS table corresponding to DCI format 1A, the indication information occupies the highest bit in the TPC-PUCCH, and the highest bit in the TPC-PUCCH is set to 0, and the second MCS calculates the sequence number 4, So that the UE receiving the second downlink control information can determine the TBS value scheduled by the eNodeB this time.

Correspondingly, the UE receives the second downlink control information of DCI format 1A, the second downlink control information includes indication information and second MCS information, and the UE determines the TBS value according to the indication of the indication information and the second MCS information.

If the highest bit in the TPC-PUCCH is 0, then the serial number 4 is calculated according to the second MCS information, and according to the first TBS table shown in Figure 1, the TBS value corresponding to the serial number 4 is 136, then the UE can determine that this time The TBS value scheduled by the eNodeB is 136, which is the same as the TBS value determined by the first MCS sending the DCI format 1C in 41.

44. The eNodeB sends the second downlink control information of DCI format 1A, the second downlink control information includes indication information and second MCS information, and the indication information is used to indicate the lowest bit according to the second MCS information, the second TBS table and TPC-PUCCH Determine the TBS value.

If the TBS value is 72, it belongs to the second TBS table corresponding to DCI format 1A, indicating that the information occupies the highest bit in TPC-PUCCH, set the highest bit in TPC-PUCCH to 1, and the lowest bit is used to indicate column number 1 , the second MCS is used to indicate the line number 4, so that the UE receiving the second downlink control information can determine the TBS value scheduled by the eNodeB this time.

Correspondingly, the UE receives the second downlink control information of DCI format 1A, the second downlink control information includes indication information and second MCS information, and the UE receives the second MCS information, the second TBS table, and the TPC-PUCCH information according to the indication information. The least significant bit determines the TBS value.

If the highest bit in the TPC-PUCCH is 1, the lowest bit is used to calculate the column number 1, and the row number 4 is calculated according to the second MCS. According to the second TBS table shown in Figure 2, the row number 4 , the TBS value corresponding to column number 1 is 72, then the UE can determine that the TBS value scheduled by the eNodeB this time is 72, which is the same as the TBS value determined by the first MCS sending DCI format 1C in 41.

The scheduling method of the embodiment of the present invention uses the reserved bit of TPC-PUCCH in DCI format 1A to indicate the TBS value of the UE's current scheduling, so that the UE determines the TBS value and DCI format 1C according to the downlink control information of DCI format 1A sent by the eNodeB The TBS value determined by the downlink control information of the eNodeB is the same, so that the UE can combine the TB initially transmitted by the eNodeB and the retransmitted TB for decoding, thereby obtaining retransmission gain.

As shown in Figure 5, corresponding to the scheduling method of the above-mentioned embodiment, an embodiment of the present invention provides a scheduling device, including:

The first sending unit 51 is configured to send the first downlink control information of the downlink control information DCI format 1C to the user equipment UE, the first downlink control information includes the first modulation and coding scheme MCS information, and the first MCS information It is used to determine the TBS value of the transport block size, and the TBS value belongs to the first TBS table corresponding to the DCI format 1C.

The second sending unit 52 is configured to send second downlink control information of DCI format 1A to the UE, the second downlink control information includes indication information and second MCS information, and the second MCS information is used to determine the TBS value, wherein, if the TBS value does not belong to the second TBS table corresponding to DCI format 1A, the indication information is used to indicate that the TBS value is determined according to the second MCS information and the first TBS table, and the The second MCS information is the same as the first MCS information; or, if the TBS value belongs to the second TBS table corresponding to DCI format 1A, the indication information is used to indicate that according to the second MCS information, the second TBS table and the lowest bit of the transmission power control command TPC-PUCCH of the physical uplink control channel to determine the TBS value.

It can be seen from the above technical solution provided by the present invention that the above technical solution makes the TBS value determined by the UE according to the downlink control information of DCI format 1A sent by the eNodeB the same as the TBS value determined by the downlink control information of DCI format 1C, so that the UE can Merge the TB initially transmitted by the eNodeB and the retransmitted TB for decoding, so as to obtain the retransmission gain.

The scheduling device in this embodiment of the present invention can be set independently, and can also be set on the eNodeB. Optionally, the first sending unit 51 and the second sending unit 52 are implemented by a sender, for example, the scheduling device includes a sender, and the sender is used to execute the above-mentioned first sending unit 51 and the second sending unit 52. action. Optionally, the first sending unit 51 and the second sending unit 52 are implemented by different senders. For example, the scheduling device includes: a first sender and a second sender, which are respectively used to execute the above-mentioned first sending unit 51 and the second sender. Actions performed by the second sending unit 52 .

The eNodeB can send the downlink control information of DCI format 1C and/or DCI format 1A to the UE through the PDCCH.

An embodiment of the present invention provides a downlink scheduling device, which may further include:

A judging unit, configured to judge whether the TBS value corresponding to the first MCS information belongs to the second TBS table corresponding to DCI format 1A.

It can be seen that if the TBS value corresponding to the first MCS information does not belong to the second TBS table corresponding to DCI format 1A, the indication information is used to indicate that the TBS value is determined according to the second MCS information and the first TBS table, and the The second MCS information is the same as the first MCS information.

Or, if the TBS value corresponding to the first MCS information belongs to the second TBS table corresponding to DCI format 1A, the indication information is used to indicate that the TBS value determined according to the second MCS information, the second TBS table, and the lowest bit of the TPC-PUCCH The above TBS value.

It should be noted that the TBS value corresponding to the first MSC information here refers to the TBS value that can be determined according to the first MSC information (or the first MSC information and other information). It can be understood that the first MSC information sent by the eNodeB For determining the TBS value, the first MSC information may be described as corresponding to the TBS value.

In the downlink scheduling device according to the embodiment of the present invention, when the second sending unit 52 is specifically configured to send the indication information, the indication information occupies the highest bit of the TPC-PUCCH.

The advantages of indicating that the highest bit of the TPC-PUCCH is occupied by the indication information are:

In DCI format 1A defined by the current LTE protocol: TPC-PUCCH is defined as 2 bits, wherein the lowest bit indicates the column number of the second TBS table corresponding to DCI format 1A, and the highest bit is reserved and not used. Then the indication information occupies the highest bit of the TPC-PUCCH, and there is no need to change the DCI format 1A defined by the current LTE protocol.

Those of ordinary skill in the art can understand that the indication information is not limited to only occupying the highest bit of the TPC-PUCCH, and other ways of modifying the DCI format 1A defined by the current LTE protocol to carry the indication information should be covered by the present invention within the scope of protection.

Still referring to FIG. 1 , the first TBS table includes the correspondence between the TBS value and the sequence number, and the second MCS information is used to calculate the sequence number corresponding to the TBS value to determine the TBS value.

In the downlink scheduling device according to the embodiment of the present invention, the first sending unit 51 is specifically configured to send the first downlink control information through downlink signaling, and the second sending unit 52 is specifically configured to send the second downlink control information through downlink signaling, Wherein, the downlink signaling may be one or more of a system message, a paging message, or a random access response message.

The scheduling device and its composition provided by the embodiments of the present invention can be used to implement the actions performed by the eNodeB in the scheduling method provided by the above embodiments. For details, reference can be made to the corresponding parts of the scheduling method in the above embodiments, and details will not be repeated here.

As shown in FIG. 6, an embodiment of the present invention provides a method for processing control information, including:

61. Receive first downlink control information in DCI format 1C, where the first downlink control information includes first MCS information, and determine a TBS according to the first MCS information and the first TBS table corresponding to the DCI format 1C value.

62. Receive second downlink control information in DCI format 1A, where the second downlink control information includes indication information and second MCS information, and determine the TBS value according to the indication of the indication information; wherein, the indication information indicates that according to the second MCS information and the first TBS table determine the TBS value, and the second MCS information is the same as the first MCS information; or, the indication information indicates that according to the second MCS information, the second TBS table and TPC-PUCCH The least significant bit determines the TBS value.

The execution subject of the method for processing control information in this embodiment of the present invention may be a UE. The eNodeB can send the downlink control information of DCI format 1C and/or DCI format 1A to the UE through the PDCCH.

It can be seen from the above technical solution provided by the present invention that the above technical solution makes the TBS value determined by the UE according to the downlink control information of DCI format 1A sent by the eNodeB the same as the TBS value determined by the downlink control information of DCI format 1C, so that the UE can Merge the TB initially transmitted by the eNodeB and the retransmitted TB for decoding, so as to obtain the retransmission gain.

In the method for processing control information in the embodiment of the present invention, the indication information occupies the highest bit of the TPC-PUCCH.

The advantages of indicating that the highest bit of the TPC-PUCCH is occupied by the indication information are:

In DCI format 1A defined by the current LTE protocol: TPC-PUCCH is defined as 2 bits, wherein the lowest bit indicates the column number of the second TBS table corresponding to DCI format 1A, and the highest bit is reserved and not used. Then the indication information occupies the highest bit of the TPC-PUCCH, and there is no need to change the DCI format 1A defined by the current LTE protocol.

Optionally, the indication information occupies the highest bit of the TPC-PUCCH, and when the highest bit of the TPC-PUCCH is 1, it is used to indicate that the TBS value is determined according to the second MCS information and the first TBS table, and the first The second MCS information is the same as the first MCS information; when the highest bit of TPC-PUCCH is 0, it is used to indicate that the TBS value is determined according to the second MCS information, the second TBS table and the lowest bit of TPC-PUCCH .

Alternatively, the indication information occupies the highest bit of the TPC-PUCCH, and when the highest bit of the TPC-PUCCH is 0, it is used to indicate that the TBS value is determined according to the second MCS information and the first TBS table, and the second MCS The information is the same as the first MCS information; when the highest bit of the TPC-PUCCH is 1, it is used to indicate that the TBS value is determined according to the second MCS information, the second TBS table, and the lowest bit of the TPC-PUCCH.

Specifically, when the indication information indicates that the TBS value is determined according to the second MCS information and the first TBS table, determining the TBS value according to the indication information may include:

Calculate the sequence number corresponding to the TBS value according to the second MCS information, and determine the TBS value from the first TBS table according to the sequence number, wherein the first TBS table includes the correspondence between the TBS value and the sequence number.

Exemplarily, referring to the first TBS table corresponding to DCI format 1C shown in FIG. 1 , the first TBS table includes a correspondence relationship between TBS values and sequence numbers. Optionally, the first MCS information has 5 bits and is used to calculate a sequence number corresponding to the TBS value, and the sequence number includes 0-31.

Specifically, when the indication information indicates that the TBS value is determined according to the second MCS information, the second TBS table, and the lowest bit of the TPC-PUCCH, determining the TBS value according to the indication information may include:

Determine the row number and the column number respectively according to the second MCS information and the lowest bit of the TPC-PUCCH, and determine the TBS value from the second TBS table according to the row number and the column number, wherein the second TBS table includes the TBS value and the row number and Correspondence between column numbers.

For example, refer to the second TBS table corresponding to DCI format 1A as shown in FIG. 2 , where the second TBS table includes a correspondence relationship between a TBS value and a row number and a column number.

Optionally, the second MCS information is 5 bits, and is used to calculate the row number of the second TBS table, and the row number includes 1-28.

Optionally, when the lowest bit of TPC-PUCCH is 0, the column number used to calculate the second TBS table is column 1, and when the lowest bit of TPC-PUCCH is 1, it is used to calculate the column number of the second TBS table The number is the second column, or, when the lowest bit of PC-PUCCH is 1, the column number used to calculate the second TBS table is the first column, and when the lowest bit of TPC-PUCCH is 0, it is used to calculate the second TBS table The column number of the TBS table is column 2.

In the method for processing control information in the embodiment of the present invention, the first downlink control information in DCI format 1C or the second downlink control information in DCI format 1A is carried in the downlink signaling sent by the base station, and the downlink signaling may include: system information, Either a paging message, or one or more of random access response messages.

The method for processing control information in the embodiment of the present invention further includes: receiving a retransmitted TB, and combining the retransmitted TB and its corresponding initially transmitted TB according to the TBS value for decoding.

It can be seen that the TBS value determined by the UE according to the downlink control information of DCI format 1A sent by the eNodeB is the same as the TBS value determined by the downlink control information of DCI format 1C, so that the UE can combine the TB initially transmitted by the eNodeB and the retransmitted TB for decoding. Thus gaining retransmission gain.

As shown in FIG. 7, an embodiment of the present invention provides a device for processing control information, including:

The receiving unit 71 is configured to receive first downlink control information in DCI format 1C, where the first downlink control information includes first MCS information.

The processing unit 72 is configured to determine a TBS value according to the first MCS information and the first TBS table corresponding to the DCI format 1C.

The receiving unit 71 is further configured to receive second downlink control information in DCI format 1A, the second downlink control information includes indication information and second MCS information, and the TBS value is determined according to the indication of the indication information; wherein, the indication information indicates Determine the TBS value according to the second MCS information and the first TBS table, and the second MCS information is the same as the first MCS information; or, the indication information indicates that according to the second MCS information, the second TBS Table and the least significant bit of TPC-PUCCH determine the TBS value.

It can be seen from the above technical solution provided by the present invention that the above technical solution makes the TBS value determined by the UE according to the downlink control information of DCI format 1A sent by the eNodeB the same as the TBS value determined by the downlink control information of DCI format 1C, so that the UE can Merge the TB initially transmitted by the eNodeB and the retransmitted TB for decoding, so as to obtain the retransmission gain.

The device for processing control information in this embodiment of the present invention may be set independently, or may be set on the UE.

The eNodeB can send the downlink control information of DCI format 1C and/or DCI format 1A to the UE through the PDCCH.

The indication information occupies the highest bit of the TPC-PUCCH. The advantages of indicating that the highest bit of the TPC-PUCCH is occupied by the indication information are:

In DCI format 1A defined by the current LTE protocol: TPC-PUCCH is defined as 2 bits, wherein the lowest bit indicates the column number of the second TBS table corresponding to DCI format 1A, and the highest bit is reserved and not used. Then the indication information occupies the highest bit of the TPC-PUCCH, and there is no need to change the DCI format 1A defined by the current LTE protocol.

When the indication information indicates that the TBS value is determined according to the second MCS information and the first TBS table, the processing unit 72 is further configured to:

Calculate the serial number corresponding to the TBS value according to the second MCS information, and determine the TBS value from the first TBS table according to the serial number, wherein the first TBS table includes a correspondence relationship between the TBS value and the serial number.

Or, when the indication information indicates that the TBS value is determined according to the second MCS information, the second TBS table, and the lowest bit of the TPC-PUCCH, the processing unit 72 is further configured to:

Determine the row number and the column number respectively according to the second MCS information and the lowest bit of the TPC-PUCCH, and determine the TBS value from the second TBS table according to the row number and the column number, wherein the second TBS table includes the TBS value and the row number and Correspondence between column numbers.

Optionally, the first downlink control information of DCI format 1C or the second downlink control information of DCI format 1A received by the receiving unit 71 is carried in the downlink signaling sent by the base station, and the downlink signaling may include: system messages, or homing call message, or one or more of random access response messages.

Optionally, as shown in FIG. 8, the device for processing control information in this embodiment of the present invention, the receiving unit 71, is also configured to receive retransmitted TBs, and the device for processing control information may also include:

The decoding unit 81 is configured to combine the retransmitted TB and its corresponding initially transmitted TB according to the TBS value for decoding.

It can be seen that the TBS value determined by the UE according to the downlink control information of DCI format 1A sent by the eNodeB is the same as the TBS value determined by the downlink control information of DCI format 1C, so that the UE can combine the TB initially transmitted by the eNodeB and the retransmitted TB for decoding. Thus gaining retransmission gain.

The control information processing device provided by the embodiment of the present invention can be used to implement the actions performed by the UE in the method provided by the above embodiment. For details, it can be understood by referring to the corresponding part of the scheduling method in the above embodiment, and will not be repeated here.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person familiar with the technical field can easily conceive of changes or changes within the technical scope disclosed in the present invention. Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented through computer programs to instruct related hardware, and the programs can be stored in a computer-readable storage medium. During execution, it may include the processes of the embodiments of the above-mentioned methods. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random AccessMemory, RAM), etc.

Claims (20)

1. A scheduling method, characterized in that, comprising: Send the first downlink control information of the downlink control information DCI format 1C to the user equipment UE, the first downlink control information includes the first modulation and coding mode MCS information, and the first MCS information is used to determine the transport block size TBS value , the TBS value belongs to the first TBS table corresponding to DCI format 1C; Send the second downlink control information of DCI format 1A to the UE, the second downlink control information includes indication information and second MCS information, and the second MCS information is used to determine the TBS value; Wherein, if the TBS value determined according to the first MCS information does not belong to the second TBS table corresponding to DCI format 1A, the indication information is used to indicate that the TBS value determined according to the second MCS information and the first TBS table TBS value, and the second MCS information is the same as the first MCS information; or, if the TBS value determined according to the first MCS information belongs to the second TBS table corresponding to DCI format 1A, the indication information It is used to indicate that the TBS value is determined according to the second MCS information, the second TBS table and the lowest bit of the transmission power control command TPC-PUCCH of the uplink physical control channel, and the second MCS information is used to calculate the second TBS table row number, the lowest bit of TPC-PUCCH is used to calculate the column number of the second TBS table, and determine the TBS value from the second TBS table according to the row number and column number; wherein, the UE according to the first The TBS value determined by the downlink control information is the same as the TBS value determined according to the second downlink control information. the 2. The scheduling method according to claim 1, wherein the indication information occupies the highest bit of the TPC-PUCCH. the 3. The scheduling method according to claim 1 or 2, wherein the first TBS table includes the correspondence between the TBS value and the sequence number, and the second MCS information is used to calculate the corresponding relationship between the TBS value and the TBS value. The ordinal number to determine the TBS value. the 4. The scheduling method according to claim 1, wherein the first downlink control information and/or the second downlink control information is sent through downlink signaling, and the downlink signaling is a system message, or One or more of a paging message, or a random access response message. the 5. A scheduling device, characterized in that, comprising: The first sending unit is configured to send the first downlink control information of the downlink control information DCI format 1C to the user equipment UE, the first downlink control information includes the first modulation and coding mode MCS information, and the first MCS information uses To determine the TBS value of the transport block size, the TBS value belongs to the first TBS table corresponding to DCI format 1C; The second sending unit is configured to send second downlink control information of DCI format 1A to the UE, the second downlink control information includes indication information and second MCS information, and the second MCS information is used to determine the TBS value, wherein, if the TBS value determined according to the first MCS information does not belong to the second TBS table corresponding to DCI format 1A, the indication information is used to indicate that according to the second MCS information and the first TBS table determining the TBS value, and the second MCS information is the same as the first MCS information; or, if the TBS value determined according to the first MCS information belongs to the second TBS table corresponding to DCI format 1A, the The indication information is used to indicate that the TBS value is determined according to the second MCS information, the second TBS table, and the lowest bit of the transmission power control command TPC-PUCCH of the physical uplink control channel, and the second MCS information is used to calculate the second TBS value. The row number of the second TBS table, the lowest bit of the TPC-PUCCH is used to calculate the column number of the second TBS table, and determine the TBS value from the second TBS table according to the row number and column number; wherein, the UE according to the The TBS value determined according to the first downlink control information is the same as the TBS value determined according to the second downlink control information. the 6. The scheduling device according to claim 5, wherein when the second sending unit is specifically configured to send the indication information, the indication information occupies the highest bit of the TPC-PUCCH. the 7. The scheduling device according to claim 5 or 6, wherein the first TBS table includes the correspondence between the TBS value and the serial number, and the second MCS information is used to calculate the corresponding relationship between the TBS value and the sequence number. The ordinal number to determine the TBS value. the 8. The scheduling device according to claim 5, wherein the first sending unit is specifically configured to send the first downlink control information through downlink signaling, and the second sending unit is specifically used to Sending the second downlink control information through downlink signaling, where the downlink signaling is one or more of a system message, a paging message, or a random access response message. the 9. A method for processing control information, comprising: Receive the first downlink control information of DCI format 1C, the first downlink control information includes first MCS information, and determine the TBS value according to the first TBS table corresponding to the first MCS information and the DCI format 1C; Receive second downlink control information in DCI format 1A, the second downlink control information includes indication information and second MCS information, and determine the TBS value according to the indication of the indication information; wherein, the indication information indicates that according to the second MCS information Determine the TBS value with the first TBS table, and the second MCS information is the same as the first MCS information; or, the indication information indicates the lowest TBS value according to the second MCS information, the second TBS table and TPC-PUCCH The bit determines the TBS value, the second MCS information is used to calculate the row number of the second TBS table, the lowest bit of TPC-PUCCH is used to calculate the column number of the second TBS table, and according to the row number and column number from the second TBS The TBS value is determined in a table; wherein, the TBS value determined according to the first TBS table corresponding to the first MCS information and the DCI format 1C is the same as the TBS value determined according to the instruction information. the 10. The method for processing control information according to claim 9, wherein the indication information occupies the highest bit of the TPC-PUCCH. the 11. The method for processing control information according to claim 9, wherein when the indication information indicates that the TBS value is determined according to the second MCS information and the first TBS table, the determination of the TBS value according to the indication of the indication information Values include: Calculate the serial number corresponding to the TBS value according to the second MCS information, and determine the TBS value from the first TBS table according to the serial number, wherein the first TBS table includes the correspondence between the TBS value and the serial number relation. the 12. The method for processing control information according to claim 9, wherein the indication information indicates that when the TBS value is determined according to the second MCS information, the second TBS table, and the lowest bit of the TPC-PUCCH, the Determining the TBS value according to the instruction information includes:  Determine the row number and column number respectively according to the second MCS information and the lowest bit of TPC-PUCCH, and determine the TBS value from the second TBS table according to the row number and column number, wherein the second TBS table includes Correspondence between TBS value and row number and column number. the 13. The method for processing control information according to claim 9, wherein the first downlink control information in the DCI format 1C or the second downlink control information in the DCI format 1A carries the downlink information sent by the base station In the signaling, the downlink signaling includes: one or more of a system message, a paging message, or a random access response message. the 14. The method for processing control information according to claim 9, further comprising: The retransmitted TB is received, and the retransmitted TB and its corresponding initially transmitted TB are combined according to the TBS value for decoding. the 15. A processing device for controlling information, comprising: A receiving unit, configured to receive first downlink control information in DCI format 1C, where the first downlink control information includes first MCS information; A processing unit, configured to determine a TBS value according to the first MCS information and the first TBS table corresponding to the DCI format 1C; The receiving unit is also used to receive the second downlink control information of DCI format 1A, the second downlink control information includes indication information and second MCS information, and determines the TBS value according to the indication of the indication information; wherein, the indication information indicating that the TBS value is determined according to the second MCS information and the first TBS table, and the second MCS information is the same as the first MCS information; or, the indication information indicates that according to the second MCS information, the second The lowest bit of the TBS table and TPC-PUCCH determines the TBS value, the second MCS information is used to calculate the row number of the second TBS table, the lowest bit of the TPC-PUCCH is used to calculate the column number of the second TBS table, and according to the row The TBS value and column number are determined from the second TBS table; wherein, the TBS value determined according to the first TBS table corresponding to the first MCS information and the DCI format 1C is the same as the TBS value determined according to the instruction information Indicates that the determined TBS values are the same. the 16. The processing device of control information according to claim 15, wherein the indication information occupies the highest bit of the TPC-PUCCH. the 17. The device for processing control information according to claim 15, wherein the indication information received by the receiving unit indicates that when the TBS value is determined according to the second MCS information and the first TBS table, the processing unit, also used for: Calculate the serial number corresponding to the TBS value according to the second MCS information, and determine the TBS value from the first TBS table according to the serial number, wherein the first TBS table includes the correspondence between the TBS value and the serial number relation. the 18. The device for processing control information according to claim 15, wherein the indication information received by the receiving unit indicates that according to the second MCS information, the second TBS table and the lowest bit of TPC-PUCCH When determining the TBS value, the processing unit is also used for: Determine the row number and column number respectively according to the second MCS information and the lowest bit of TPC-PUCCH, and determine the TBS value from the second TBS table according to the row number and column number, wherein the second TBS table includes Correspondence between TBS value and row number and column number. the 19. The device for processing control information according to claim 15, wherein the first downlink control information of the DCI format 1C or the second downlink control information of the DCI format 1A received by the receiving unit Carried in the downlink signaling sent by the base station, the downlink signaling includes: one or more of a system message, a paging message, or a random access response message. the 20. The device for processing control information according to claim 15, wherein the receiving unit is further configured to receive a retransmitted TB, and the device for processing control information further comprises: A decoding unit, configured to combine the retransmitted TB and its corresponding initially transmitted TB according to the TBS value for decoding. the

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