WO2012171224A1

WO2012171224A1 - Scheduling method and device and method and device for processing control information

Info

Publication number: WO2012171224A1
Application number: PCT/CN2011/075888
Authority: WO
Inventors: 陶雪涛; 赵俊; 雷栋; 谢伟
Original assignee: 华为技术有限公司
Priority date: 2011-06-17
Filing date: 2011-06-17
Publication date: 2012-12-20
Also published as: CN102265695B; CN102265695A

Abstract

A scheduling method and device and a method and device for processing control information are disclosed by the present invention, wherein the scheduling method includes: sending a first downlink control information with the Downlink Control Information (DCI) format 1C to a User Equipment (UE), wherein the first downlink control information includes a first Modulation and Coding Scheme (MCS) information which is used to determine a Transport Block Size (TBS) value, and the TBS value belongs to the first TBS table corresponding to the DCI format 1C; sending a second downlink control information with the DCI format 1A to the UE, wherein the second downlink control information includes an indication information and a second MCS information which is used to determine the TBS value; wherein, if the TBS value does not belong to the second TBS table corresponding to the 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 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 to indicate that the TBS value is determined according to the second MCS information, the second TBS table and the lowest bit of the Transmit Power Control - Physical Uplink Control Channel (TPC-PUCCH). The scheduling method and device and the method and device for processing control information in the present invention enable the TBS value determined by the UE according to the downlink control information with the DCI format 1A sent by an evolved Node Base station (eNodeB) to be the same as the TBS value determined by the UE according to the downlink control information with the DCI format 1C, further enable the UE to combine a primal transmission Transport Block (TB) and a retransmission TB from the eNodeB and decode them, thereby the retransmission gain is obtained.

Description

Scheduling method and device, processing method and device for control information

The present invention relates to the field of communications technologies, and in particular, to a scheduling method and device. Background of the invention

In the LTE (Long Term Evolution) technology, the eNodeB (Evolved Node Base Station) can transmit DCI (Downlink Control Information) format 1C through the PDCCH (Physical Downlink Control Channel). That is, the downlink control information of the DCI format 1C) or the DCI format 1A (ie, the DCI format 1A) is sent to the UE (User Equipment).

The DCI format 1C corresponds to a TBS (Transport Block Size) table, as shown in the first TBS table in FIG. 1, the number of the line in which the symbol ^tbs is located in the first TBS table is the serial number, and the number of the line in which the symbol TBS is located is TBS. Value, the unit of TBS value is bit (bit). The UE that receives the downlink control information of the DCI format 1C passes the MCS in the downlink control information (Modulation and

Coding Scheme, modulation coding mode) Determine the ^/tes sequence number, find the first TBS table by sequence number, and determine the TBS value of this schedule.

The DCI format 1A corresponds to a TBS table, as shown in the second TBS table in FIG. 2, and the number in the second TBS table is the TBS value, and the unit is bit o. The UE that receives the downlink control information of the DCI format 1A passes the downlink control information. The TPC-PUCCH (Transmit Power Control-Physical Uplink Control CHannel, the transmission power control command of the uplink physical control channel) determines the column number, and determines the line number by the MCS, and searches the second TBS table by the column number and the line number to determine the current time. The scheduled TBS value.

It can be seen that the DCI format 1C is compact and consumes less PDCCH resources, but the indicated TBS value range is smaller, and the DCI format 1A is inferior.

The DCI format 1C format is compact and consumes a lot of PDCCH resources, but its TBS table indicates a large range of TBS values. The DCR format 1C RB (Resource Block) allocation type is fixed using the DVRB (Distributed Virtual Resource Bock) indication. DCI format 1A RB allocation type can be indicated by DVRB or LVRB (Localized Virtual Resource Block), which is more flexible.

Generally, when the TBS value of the scheduled TB (Transport Block) can be supported by the DCI format 1C, that is, the TBS value belongs to the first TBS table, the eNodeB preferentially sends the downlink control information of the DCI format 1C for the UE to determine. The TBS value of this schedule. However, if the TBS value of the scheduled time is not in the second TBS table, the eNodeB needs to send the downlink control information of the DCI format 1A for the UE to determine the TBS value of the TB of the retransmission schedule, because the DVRB resource allocation type of the DCI format 1C is limited. The TBS value determined by the UE according to the downlink control information of the DCI format 1A and the downlink control information of the DCI format 1C are different, and the UE cannot combine the TB originally transmitted by the eNodeB with the retransmitted TB for decoding, and the UE cannot obtain the UE. Retransmit the gain. Summary of the invention

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

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

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

If the TBS value does not belong to the second TBS table corresponding to the 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 the DCI format 1A, the indication information is used to indicate according to the second MCS information, the second TBS table, and the uplink physics. 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:

a first sending unit, configured to send first downlink control information of the downlink control information DCI format 1C to the user equipment UE, where the first downlink control information includes first modulation and coding mode MCS information, and the first MCS information is used by Determining a transport block size TBS value, where the TBS value belongs to a first TBS table corresponding to DCI format 1C;

a second sending unit, configured to send second downlink control information of the DCI format 1A to the UE, where the second downlink control information includes indication information and second MCS information, where the second MCS information is used to determine the TBS a value, where the indication information is used to indicate that the TBS value is determined according to the second MCS information and the first TBS table, if the TBS value does not belong to the second TBS table corresponding to the DCI format 1A, 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 the DCI format 1A, the indication information is used to indicate 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:

Receiving the first downlink control information of the DCI format 1C, where the first downlink control information includes the first MCS information, and determining the TBS value according to the first MCS information and the first TBS table corresponding to the DCI format 1C;

Receiving the second downlink control information of the DCI format 1A, where the second downlink control information includes the indication information and the second MCS information, and determining the TBS value according to the indication of the indication information; wherein the indication information indicates that the second MCS information is Determining a 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 a lowest according to the second MCS information, the second TBS table, and the TPC-PUCCH Bit determines the TBS value.

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

a receiving unit, configured to receive first downlink control information of 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 a first TBS table corresponding to the DCI format 1C; the receiving unit is further configured to receive second downlink control information of the DCI format 1A, where The second downlink control information includes the indication information and the second MCS information, and the TBS value is determined according to the indication of the indication information, where the indication information indicates 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 the indication information indicates that the TBS value is determined according to the lowest bits of the second MCS information, the second TBS table, and the TPC-PUCCH. The foregoing technical solution is such that the TBS value determined by the UE according to the downlink control information of the DCI format 1A sent by the eNodeB is the same as the TBS value determined by the downlink control information of the DCI format 1C, so that the UE can merge the TB of the eNodeB and the TB of the retransmission. Decode to obtain the retransmission gain. BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 shows the first TBS table corresponding to DCI format 1C.

Figure 2 shows the second TBS table corresponding to DCI format 1A.

FIG. 3 is a schematic flowchart diagram of a scheduling method according to an embodiment of the present invention.

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

FIG. 5 is a schematic structural diagram of a scheduling device according to an embodiment of the present invention.

FIG. 6 is a schematic flowchart diagram of a method for processing control information according to an embodiment of the present invention.

FIG. 7 is a first schematic structural diagram of a processing apparatus for controlling information according to an embodiment of the present invention.

FIG. 8 is a second schematic structural diagram of a processing apparatus for controlling information according to an embodiment of the present invention. Mode for carrying out the invention

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

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

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

The second downlink control information of the DCI format 1A is sent 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;

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

The executor of the scheduling method of the embodiment of the present invention may be an eNodeB (Evolved Node Base Station). The eNodeB may send downlink control information of DCI format 1C and/or DCI format 1A to the UE through a PDCCH (Physical Downlink Control Channel).

The foregoing technical solution may enable the UE to determine the TBS value and the DCI cell according to the downlink control information of the DCI format 1A sent by the eNodeB. The downlink control information determined by the downlink control information of the formula 1C is the same, so that the UE can combine the TB originally transmitted by the eNodeB and the retransmitted TB to perform decoding, thereby obtaining a retransmission gain.

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

The advantages of the indication information occupying the highest bit of the TPC-PUCCH are:

In the DCI format 1A defined by the LTE protocol, the TPC-PUCCH is defined as 2 bits, wherein the lowest bit indicates the column number of the second TBS table corresponding to the DCI format 1A, and the most significant bit is a reserved bit, which is not used. The indication information occupies the highest bit of the TPC-PUCCH, and the DCI format 1A defined by the current LTE protocol does not have to be changed.

A person skilled in the art can understand that the indication information is not limited to only occupying the highest bit of the TPC-PUCCH, and other methods for modifying the DCI format 1A defined by the current LTE protocol to implement the bearer indication information are all 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 The second MCS information is the same as the first MCS information; when the highest bit of the TPC-PUCCH is 0, it is used to indicate that the TBS value is determined according to the lowest bits of the second MCS information, the second TBS table, and the TPC-PUCCH .

Or, the indication information occupies the highest bit of the TPC-PUCCH, and when the highest bit of the TPC-PUCCH is 0, 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 lowest bits of the second MCS information, the second TBS table, and the TPC-PUCCH.

The embodiment of the invention provides a downlink scheduling method, which may further include:

It is determined whether the TBS value corresponding to the first MSC information belongs to the second TBS table corresponding to the DCI format 1A. Further, if the TBS value corresponding to the first MSC information does not belong to the second TBS table corresponding to the 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 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 the DCI format 1A, the indication information is used to indicate that the second MCS information is The lowest bits of the second TBS table and the TPC-PUCCH determine the TBS value. It should be noted that the TBS value corresponding to the first MSC information herein refers to the TBS value that can be determined according to the first MSC information (or the first MSC information and other information), and the first MSC information sent by the eNodeB can be understood. For determining a TBS value, the first MSC information can be described as corresponding to the TBS value. A similar description will not be described later.

Next, referring to FIG. 1, a first TBS table corresponding to the DCI format 1C, the first TBS table includes a correspondence relationship between the TBS value and the serial number.

In the foregoing step 31, the first downlink control information of the DCI format 1C is sent to the UE, where the first downlink control information includes the first MCS information, where the first MCS information is used to calculate a 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, where the sequence number includes 0-31.

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

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

Or, as shown in FIG. 1, the first TBS table corresponding to the DCI format 1C, the first TBS table includes a correspondence between the TBS value and the serial number, and the second TBS table corresponding to the DCI format 1A, as shown in FIG. 2, The second TBS table includes a correspondence between the TBS value and the line number and the column number.

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

The second MCS information is used to calculate a row number of the second TBS table, and the lowest bit of the TPC-PUCCH is used to calculate a 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 a line number of the second TBS table, where the line number includes 1-28.

Optionally, when the lowest bit of the TPC-PUCCH is 0, the column number used to calculate the second TBS table is the first column, and when the lowest bit of the TPC-PUCCH is 1, the column used to calculate the second TBS table is calculated. The number is in the second column. Alternatively, when the lowest bit of the PC-PUCCH is 1, the column number used to calculate the second TBS table is the first column, and the lowest bit of the TPC-PUCCH is 0, which is used to calculate the second column. The column number of the TBS table is the second column.

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

Optionally, in the scheduling method of the embodiment of the present invention, the first downlink control information and/or the second downlink control information are sent by using downlink signaling, where the downlink signaling may be a system message, or a paging message, or One or more of the random access response messages. Exemplarily, as shown in FIG. 4, a scheduling method according to an embodiment of the present invention is provided, 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 the DCI format 1C to the UE, where the first downlink control information includes the first MCS information, the first MCS information is used to determine the TBS value, and the TBS value belongs to the DCI format 1C. Corresponding first TBS table, specifically, the first MCS information is used to calculate a sequence number corresponding to the TBS value to determine a TBS value.

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

Exemplarily, the first MCS information is calculated to obtain the sequence number 4, so that the UE that receives the first downlink control information can determine the current time. The TBS value scheduled by the eNodeB. Alternatively, the sequence number 2 is calculated as the first MCS information, so that the UE that receives the first downlink control information can determine the TBS value scheduled by the current eNodeB.

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

For example, if the serial number 4 is calculated according to the first MCS information, according to the first TBS table shown in FIG. 1, the serial number 4 corresponds to

The TBS value is 136, and the UE can determine that the TBS value of the current eNodeB scheduling is 136. Alternatively, if the sequence number 2 is calculated according to the first MCS information, according to the first TBS table shown in FIG. 1, the TBS value corresponding to the sequence number 2 is 72, and the UE may determine that the TBS value of the current eNodeB scheduling is 72.

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

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

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

43. The eNodeB sends the second downlink control information of the DCI format 1A, where the second downlink control information includes the indication information and the second

The MCS information, 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 information is the same as the first MCS information.

For example, if the TBS value is 136, it does not belong to the second TBS table corresponding to the DCI format 1A, and 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. The UE that receives the second downlink control information may determine the TBS value scheduled by the current eNodeB.

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

If the highest bit in the TPC-PUCCH is 0, the sequence number 4 is calculated according to the second MCS information. According to the first TBS table shown in FIG. 1, the TBS value corresponding to the sequence number 4 is 136, and the UE can determine this time. The eNodeB schedules a TBS value of 136, which is the same as the TBS value determined by the first MCS transmitting DCI format 1C in 41.

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

For example, if the TBS value is 72, it belongs to the second TBS table corresponding to DCI format 1A, and the indication information occupies the most significant bit in the TPC-PUCCH, and the highest bit in the TPC-PUCCH is set to 1, and the lowest bit is used to indicate the column number 1. The second MCS is used to indicate the line number 4, so that the UE that receives the second downlink control information can determine the TBS value scheduled by the current eNodeB.

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

For example, according to the highest bit in the TPC-PUCCH, the column number 1 is calculated according to the lowest bit, and the row number 4 is calculated according to the second MCS. According to the second TBS table shown in FIG. 2, the line number 4 is If the TBS value corresponding to column number 1 is 72, the UE can determine The TBS value of the current eNodeB scheduling is 72, which is the same as the TBS value determined by the first MCS transmitting the DCI format 1C in 41.

The scheduling method of the embodiment of the present invention uses the reserved bits of the TPC-PUCCH in the DCI format 1A to indicate the TBS value of the current scheduling of the UE, and the TBS value and the DCI format determined by the UE according to the downlink control information of the DCI format 1A sent by the eNodeB. The downlink control information determines that the TBS values are the same, so that the UE can combine the TBs initially transmitted by the eNodeB and the retransmitted TBs to perform decoding, thereby obtaining retransmission gain. As shown in FIG. 5, corresponding to the scheduling method of the foregoing embodiment, the embodiment of the present invention provides a scheduling device, including: a first sending unit 51, configured to send first downlink control information of a downlink control information DCI format 1C to a user. The device, the first downlink control information includes a first modulation and coding mode MCS information, the first MCS information is used to determine a transport block size TBS value, and the TBS value belongs to a first TBS table corresponding to the DCI format 1C.

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

It can be seen that the foregoing technical solution is that the TBS value determined by the UE according to the downlink control information of the DCI format 1A sent by the eNodeB is the same as the TBS value determined by the downlink control information of the DCI format 1C, so that the UE can The TB of the initial transmission of the eNodeB is combined with the retransmitted TB for decoding, thereby obtaining a retransmission gain.

The scheduling device in the embodiment of the present invention may be set separately or on the eNodeB. Optionally, the first sending unit 51 and the second sending unit 52 are implemented by a transmitter. For example, the scheduling device includes a transmitter, where the transmitter is configured to perform the foregoing sending by the 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 transmitters. For example, the scheduling device includes: a first transmitter and a second transmitter, respectively, configured to execute the foregoing first sending unit 51 and The action performed by the second transmitting unit 52.

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

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

The determining unit is configured to determine whether the TBS value corresponding to the first MCS information belongs to the second TBS table corresponding to the 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 the 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 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 the DCI format 1A, the indication information is used to indicate that the lowest bit is determined according to the second MCS information, the second TBS table, and the TPC-PUCCH. Describe the TBS value.

It should be noted that the TBS value corresponding to the first MSC information herein refers to a TBS value that can be determined according to the first MSC information (or the first MSC information and other information), and the first MSC information sent by the eNodeB can be understood. For determining a TBS value, the first MSC information can be described as corresponding to the TBS value. In the downlink scheduling device of the embodiment of the present invention, the second sending unit 52 is configured to: when the indication information is sent, the indication information occupies the highest bit of the TPC-PUCCH.

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

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

The scheduling device and the configuration thereof provided by the embodiment of the present invention may be used to implement the action performed by the eNodeB in the scheduling method provided by the foregoing embodiment. For details, refer to the corresponding part of the scheduling method in the foregoing embodiment, and details are not described herein. 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 of the DCI format 1C, where the first downlink control information includes first MCS information, and determine a TBS according to the first MCS information and a first TBS table corresponding to the DCI format 1C. value.

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

The execution body of the method for processing control information in the embodiment of the present invention may be a UE. The eNodeB can send the DCI format through the PDCCH.

The downlink control information of 1C and/or DCI format 1A is given to the UE.

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.

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 according to the Determining, by the second MCS information and the first TBS table, the TBS value, and the second MCS information is the same as the first MCS information; when the highest bit of the TPC-PUCCH is 0, The lowest bits of the second MCS information, the second TBS table, and the TPC-PUCCH determine the TBS value.

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 of the indication information may include:

Calculating a sequence number corresponding to the TBS value according to the second MCS information, and determining a TBS value from the first TBS table according to the sequence number, where the first TBS table includes a correspondence between the TBS value and the sequence number.

For example, referring to FIG. 1, the first TBS table corresponding to the DCI format 1C, the first TBS table includes the correspondence relationship between the TBS value and the serial number. Optionally, the first MCS information is 5 bits, and is used to calculate a sequence number corresponding to the TBS value, where the sequence number includes 0-31.

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

Determining a row number and a column number according to the lowest bits of the second MCS information and the TPC-PUCCH, and determining a TBS value from the second TBS table according to the row number and the column number, where the second TBS table includes the TBS value and the line number and The correspondence of the column numbers.

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

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

The method for processing control information in the embodiment of the present invention further includes: receiving, by the TBS, the retransmitted TB and the corresponding initial 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 the DCI format 1A sent by the eNodeB is the same as the TBS value determined by the downlink control information of the DCI format 1C, so that the UE can combine the TB of the eNodeB and the retransmitted TB for decoding. Thereby obtaining a retransmission gain. As shown in FIG. 7, an embodiment of the present invention provides a processing device for controlling information, including:

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

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 the second downlink control information of the DCI format 1A, where the second downlink control information includes the indication information and the second MCS information, and the TBS value is determined according to the indication of the indication information; where the indication information indicates Determining a 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, according to the second MCS information, the second TBS The lowest bits of the table and TPC-PUCCH determine the TBS value.

The processing device for controlling information in the embodiment of the present invention may be separately set or set on the UE.

The indication information occupies the highest bit of the TPC-PUCCH. The advantage that the indication information occupies the highest bit of the TPC-PUCCH is: In the current DCI format 1A defined by the LTE protocol: TPC-PUCCH is defined as 2 bits, wherein the lowest bit indicates the column number of the second TBS table corresponding to the DCI format 1A, The most significant bit is reserved and not used. The indication information occupies the highest bit of the TPC-PUCCH, and the DCI format 1A defined by the current LTE protocol does not have to be changed.

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 a sequence number corresponding to the TBS value according to the second MCS information, and use the sequence number from the first TBS table. Determining the TBS value, where the first TBS table includes a correspondence between the TBS value and the sequence number.

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

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

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

The decoding unit 81 is configured to combine the retransmitted TB and its corresponding initial 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 the DCI format 1A sent by the eNodeB is the same as the TBS value determined by the downlink control information of the DCI format 1C, so that the UE can combine the TB of the eNodeB and the retransmitted TB for decoding. Thereby obtaining a retransmission gain.

The processing device of the control information provided by the embodiment of the present invention may be used to implement the action performed by the UE in the method provided in the foregoing embodiment. For details, refer to the corresponding part of the scheduling method in the foregoing embodiment, and details are not described herein. The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any familiarity with the present invention is not limited thereto. Those skilled in the art are susceptible to variations or alternatives within the scope of the present disclosure. Therefore, the scope of the invention should be determined by the scope of the claims.

A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. In execution, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

Claims

Rights request

A scheduling method, comprising:

2. The downlink scheduling method according to claim 1, wherein the indication information occupies a highest bit of the TPC-PUCCH.

The downlink scheduling method according to claim 1 or 2, wherein the first TBS table includes a correspondence between the TBS value and a sequence number, and the second MCS information is used to calculate the TBS value. Corresponding serial numbers to determine the TBS value.

The downlink scheduling method according to claim 1, wherein the first downlink control information and/or the second downlink control information are sent by using downlink signaling, where the downlink signaling is a system message. Or one or more of a paging message, or a random access response message.

5. A scheduling device, comprising:

The scheduling device according to claim 5, wherein the second sending unit is configured to: when the indication information is sent, the indication information occupies a highest bit of the TPC-PUCCH.

The scheduling device according to claim 5 or 6, wherein the first TBS table includes a correspondence between the TBS value and a sequence number, and the second MCS information is used to calculate a correspondence with the TBS value. The serial number to determine the TBS value.

The scheduling device according to claim 5, wherein the first sending unit is configured to send the first downlink control information by using downlink signaling, where the second sending unit is specifically configured to: The second downlink control information is sent by using the downlink signaling, where the downlink signaling is one or more of a system message, a paging message, or a random access response message.

9. A method of processing control information, comprising:

The method of processing control information according to claim 9, wherein the indication information occupies a highest bit of the TPC-PUCCH.

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 determining the TBS according to the indication of the indication information Values include:

Determining, according to the second MCS information, a sequence number corresponding to the TBS value, and determining the TBS value from the first TBS table according to the sequence number, where the first TBS table includes a correspondence between a TBS value and a sequence number. relationship.

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 lowest bits of the second MCS information, the second TBS table, and the TPC-PUCCH, Determining the TBS value as indicated by the instructions includes:

Determining a row number and a column number according to the lowest bits of the second MCS information and the TPC-PUCCH, and determining a TBS value from the second TBS table according to the row number and the column number, wherein the second TBS table includes The correspondence between the TBS value and the line number and column number.

The method for processing control information according to claim 9, wherein the first downlink control information of the DCI format 1C or the second downlink control information of the DCI format 1A carries a downlink information sent by the base station. The downlink signaling includes: one or more of a system message, or a paging message, or a random access response message.

The method for processing control information according to claim 9, further comprising:

Receiving the retransmitted TB, combining the retransmitted TB and its corresponding initial transmitted TB according to the TBS value for decoding.

15. A processing device for controlling information, comprising:

a receiving unit, configured to receive first downlink control information of 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 a first TBS table corresponding to the DCI format 1C; the receiving unit is further configured to receive second downlink control information of the DCI format 1A, where The second downlink control information includes the indication information and the second MCS information, and the TBS value is determined according to the indication of the indication information, where the indication information indicates 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 the indication information indicates that the TBS value is determined according to the lowest bits of the second MCS information, the second TBS table, and the TPC-PUCCH.

The processing device for controlling information according to claim 15, wherein the indication information occupies a highest bit of the TPC-PUCCH.

The processing device of the control information according to claim 15, wherein when the indication information received by the receiving unit indicates that the TBS value is determined according to the second MCS information and the first TBS table, The processing unit is also used to: Determining, according to the second MCS information, a sequence number corresponding to the TBS value, and determining the TBS value from the first TBS table according to the sequence number, where the first TBS table includes a correspondence between a TBS value and a sequence number. relationship.

The processing device for controlling information according to claim 15, wherein the indication information received by the receiving unit indicates the lowest bit according to the second MCS information, the second TBS table, and the TPC-PUCCH. When determining the TBS value, the processing unit is further configured to:

The processing device for controlling 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 The downlink signaling is carried in the downlink signaling sent by the base station, where the downlink signaling includes: one or more of a system message, or a paging message, or a random access response message.

The processing device of the control information according to claim 15, wherein the receiving unit is further configured to receive the retransmitted TB, and the processing device of the control information further includes:

And a decoding unit, configured to combine the retransmitted TB and its corresponding initial transmitted TB according to the TBS value for decoding.