CN102571298A - Method and device for determining transmission of data block - Google Patents

Abstract

The invention discloses a method and equipment for determining transmission data blocks, belonging to the communication field. The method includes: receiving uplink single-antenna scheduling signaling, the uplink single-antenna scheduling signaling carrying an NDI of a data block; acquiring indication information, the indication information being used to indicate the data scheduled by the uplink single-antenna scheduling signaling Block: Send the data block indicated by the indication information according to the NDI carried in the uplink single-antenna scheduling signaling. The device includes: a first receiving module, a first acquiring module and a first sending module. The present invention can determine which data block to transmit to the base station after receiving the uplink single-antenna scheduling signaling.

Description

A method and device for determining transmission data blocks

technical field

The invention relates to the communication field, in particular to a method and equipment for determining a transmission data block.

Background technique

MIMO (Multiple Input Multiple Output) transmission methods include diversity and multiplexing. Among them, the multiplexing method allows multiple antennas to transmit and receive multiple spatial streams at the same time, without increasing the bandwidth and transmission power of each antenna, the spectrum utilization rate and the capacity of the wireless channel can be doubled.

Uplink MIMO is an uplink multi-antenna transmission technology. In the uplink MIMO multiplexing mode, the base station simultaneously indicates the scheduling information of multiple uplink data blocks through the uplink multi-antenna scheduling signaling, so that the UE (User Equipment, user equipment) transmits multiple data blocks to the base station. Assume that the uplink MIMO transmission method allows the UE to send two data blocks within one TTI, which are TB1 data block and TB2 data block respectively. Every time the base station needs the UE to send a data block, it sends the uplink multi-antenna scheduling signaling to the UE and the uplink The multi-antenna scheduling signaling carries the NDI (New Data Indicator) of two data blocks, and the UE determines the NDI of the TB1 data block and the NDI of the TB2 data block from the uplink multi-antenna scheduling signaling, and then the UE determines the NDI of the TB1 data block and the NDI of the TB2 data block according to The NDI of the TB1 data block and the NDI of the TB2 data block respectively send the TB1 data block and the TB2 data block to the base station.

In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art:

After the UE sends TB1 data block and TB2 data block to the base station, the base station may only successfully receive one data block, or the base station finds that the quality of the air interface between itself and the UE is poor. At this time, the base station requires the UE to uplink S1SO (Simple Input Simple Output, single input single output) transmission mode to transmit data blocks, that is, the base station sends uplink single-antenna scheduling signaling to UE. The uplink single-antenna scheduling signaling only carries NDI of one data block and is used to instruct UE to use uplink SISO transmission mode When transmitting a data block to the base station, since the UE does not know which data block the NDI of a data block carried in the uplink single-antenna scheduling signaling is, the UE does not know which data block to transmit to the base station.

Contents of the invention

In order to determine which data block to transmit to the base station after receiving the uplink single-antenna scheduling signaling, the present invention provides a method and device for determining the transmission data block. Described technical scheme is as follows:

A method of determining a data block for transmission, the method comprising:

receiving uplink single-antenna scheduling signaling, where the uplink single-antenna scheduling signaling carries an NDI of a data block;

Acquiring indication information, where the indication information is used to indicate the data block scheduled by the uplink single-antenna scheduling signaling;

Send the data block indicated by the indication information according to the NDI of the first data block.

A device for determining a data block for transmission, the device comprising:

The first receiving module is configured to receive uplink single-antenna scheduling signaling, where the uplink single-antenna scheduling signaling carries an NDI of a data block;

A first acquiring module, configured to acquire indication information, where the indication information is used to indicate a data block scheduled by the uplink single-antenna scheduling signaling;

The first sending module is configured to send the data block indicated by the indication information according to the NDI of the first data block.

By receiving the uplink single-antenna scheduling signaling sent by the base station, and the uplink single-antenna scheduling signaling carries an NDI of a data block, obtaining indication information, the indication information is used to indicate the data block scheduled by the uplink single-antenna scheduling signaling, and sending the The data block indicated by the indication information is sent to the base station. In this way, the UE can determine which data block to transmit to the base station after receiving the uplink single-antenna scheduling signaling sent by the base station.

Description of drawings

FIG. 1 is a flow chart of a method for determining a transmission data block provided by Embodiment 1 of the present invention;

FIG. 2 is a flow chart of a method for determining a transmission data block provided by Embodiment 2 of the present invention;

FIG. 3 is a flow chart of a method for determining a transmission data block provided by Embodiment 3 of the present invention;

FIG. 4 is a flow chart of a method for determining a transmission data block provided by Embodiment 4 of the present invention;

FIG. 5 is a flow chart of a method for determining a transmission data block provided by Embodiment 5 of the present invention;

FIG. 6 is a flow chart of a method for determining a transmission data block provided by Embodiment 6 of the present invention;

Fig. 7 is a flowchart of a device for determining transmission data blocks provided by Embodiment 7 of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

In the present invention, the UE uses the uplink MIMO transmission method to send data blocks to the base station. When the UE uses the uplink MIMO transmission method, it will send multiple data blocks to the base station at the same time within one TTI. In the following, the UE sends two data blocks simultaneously within one TTI. block as an example, the general flow of the uplink MIMO transmission method is as follows:

In the first step, when the base station needs the UE to transmit data blocks, it generates and caches the NDI of the two data blocks as the NDI of the TB1 data block and the ND2 of the TB2 data block, and sends the cached NDI of the TB1 data block and the ND2 of the TB2 data block The uplink multi-antenna scheduling signaling of NDI is sent to the UE, and the uplink multi-antenna scheduling signaling is used to instruct the UE to transmit two data blocks to the base station in the same TTI using the uplink MIMO transmission mode;

In the second step, the UE receives the uplink multi-antenna scheduling signaling sent by the base station for the first time, extracts the NDI of the TB1 data block and the NDI of the TB2 data block from the uplink multi-antenna scheduling signaling according to the rules agreed with the base station in advance, and caches the extracted TB1 The NDI of the data block and the NDI of the TB2 data block obtain the TB1 data block and the TB2 data block, and send the TB1 data block and the TB2 data block to the base station;

Wherein, the rule agreed in advance between the base station and the UE is: in the uplink multi-antenna scheduling signaling, the NDI of the first data block is the NDI of the TB1 data block and the NDI of the second data block is the NDI of the TB2 data block, Or it is agreed in advance that the NDI of the first data block in the uplink multi-antenna scheduling signaling is the NDI of the TB2 data block and the NDI of the second data block is the NDI of the TB1 data block; both Buffer1 and Buffer2 are buffers.

In the third step, if the base station successfully receives the TB1 data block and the TB2 data block, flip the cached NDI of the TB1 data block and the NDI of the TB2 data block, and then update according to the NDI of the flipped TB1 data block and the NDI of the TB2 data block The cached NDI of the TB1 data block and the NDI of the TB2 data block send feedback information to the UE and the feedback information carries two success identifiers. If the base station still needs the UE to continue to transmit new data blocks, the base station sends an uplink multi-antenna scheduling signal at the same time. and the uplink multi-antenna scheduling signaling carries the cached NDI of the TB1 data block and the NDI of the TB2 data block;

Wherein, if the base station fails to receive the TB1 data block and the TB2 data block, the base station directly sends feedback information to the UE and the feedback information carries two failure identifiers, and then sends uplink multi-antenna scheduling signaling and the uplink multi-antenna scheduling The signaling carries the cached NDI of the TB1 data block and the NDI of the TB2 data block.

Among them, the base station flips the NDI of the TB1 data block and the NDI of the TB2 data block in a "0/1" flipping manner. For example, if the NDI value of the TB1 data block cached in the base station is "0", the flipped TB1 data block The NDI value of "1".

In the fourth step, the UE receives the feedback information and the uplink multi-antenna scheduling signaling, extracts the NDI of the TB1 data block and the NDI of the TB2 data block from the uplink multi-antenna scheduling signaling according to the rules agreed with the base station in advance, and compares the cached TB1 data The NDI of the block and the NDI of the extracted TB1 data block, if the two are different, obtain a new TB1 data block; compare the NDI of the cached TB2 data block with the NDI of the extracted TB2 data block, if the two are not the same, then Obtain the new TB2 data block, send the new TB1 data block and the new TB2 data block to the base station through two channels, and then return to the third step.

Wherein, if the UE compares that the NDI of the cached TB1 data block is the same as the NDI of the extracted TB1 data block and compares that the NDI of the cached TB2 data block is also the same as the NDI of the extracted TB2 data block, it indicates that the base station has not successfully received When the TB1 data block and TB2 data block are received, the UE sends the TB1 data block and TB2 data block to the base station again through two channels.

Wherein, the base station and the UE repeatedly perform the third step and the fourth step until the base station receives all the uplink data sent by the UE.

Among them, in the third step, the base station may only successfully receive one of the data blocks and the other data block is not received, or receive two data blocks and an error occurs in one of the data blocks, then the base station sends a feedback information to the UE and the feedback information carries a success identifier and a failure identifier, and then sends the uplink single-antenna scheduling signaling to the UE and the uplink single-antenna scheduling signaling carries the NDI of a data block; or the base station finds that the air interface between itself and the UE When the quality is poor, send the uplink single-antenna scheduling signaling to the UE and the uplink single-antenna scheduling signaling carries the NDI of a data block; the uplink single-antenna scheduling signaling is used to instruct the UE to use the SISO transmission mode to transmit a data block, at this time The UE needs to use the method provided by the present invention to determine which data block to transmit to the base station.

Example 1

As shown in Figure 1, an embodiment of the present invention provides a method for determining a transmission data block, including:

Step 101: Receive uplink single-antenna scheduling signaling, the uplink single-antenna scheduling signaling carries the NDI of the first data block;

Step 102: Obtain indication information, where the indication information is used to indicate the first data block;

Step 103: Send the first data block indicated by the indication information according to the NDI carried in the uplink single-antenna scheduling instruction.

In the embodiment of the present invention, the receiving base station sends uplink single-antenna scheduling signaling carrying the NDI of the first data block, obtains indication information for indicating the first data block, and sends the first data block indicated by the indication information to the base station. In this way, the UE knows which data block to transmit to the base station after receiving the uplink single-antenna scheduling signaling sent by the base station.

Example 2

As shown in the figure, an embodiment of the present invention provides a method for determining a transmission data block, including:

Step 201: The UE receives the uplink multi-antenna scheduling signaling sent by the base station, and the uplink multi-antenna scheduling signaling carries the NDI of the TB1 data block and the NDI of the TB2 data block, and sends the TB1 data block and the TB2 data block to the base station;

Wherein, when the base station initially needs the UE to send a data block, it first generates and caches the NDI of the TB1 data block and the NDI of the TB2 data block, and then sends the uplink multi-antenna scheduling signaling carrying the cached NDI of the TB1 data block and the NDI of the TB2 data block For the UE, the uplink multi-antenna scheduling signaling is used to instruct the UE to transmit the TB1 data block and the TB2 data block through the uplink MIMO transmission mode. At this point, this step is specifically:

The UE receives the uplink multi-antenna scheduling signaling sent by the base station, extracts the NDI of the TB1 data block and the NDI of the TB2 data block from the uplink multi-antenna scheduling signaling according to the rules agreed with the base station in advance, and caches the extracted NDI of TB1 and TB2 NDI, obtain two data blocks, use the obtained two data blocks as TB1 data block and TB2 data block respectively, cache the TB1 data block and TB2 data block in Buffer1 and Buffer2 respectively, and then transfer the data in Buffer1 through two channels The TB1 data block and the TB2 data block in Buffer2 are sent to the base station.

Among them, after the base station sends the uplink multi-antenna scheduling signaling for the first time, the UE will send the TB1 data block and the TB2 data block. If the base station successfully receives the TB1 data block and the TB2 data block, the base station flips the NDI of the buffered TB1 data block. and the NDI of the TB2 data block, update the cached NDI of the TB1 data block and the NDI of the TB2 data block to the flipped NDI of the TB1 data block and the NDI of the TB2 data block, and then send a feedback message with two successful If the base station still needs the UE to transmit a new data block, it sends uplink multi-antenna scheduling signaling to the UE at the same time and the uplink multi-antenna scheduling signaling carries the cached NDI of the TB1 data block and the NDI of the TB2 data block; if the base station does not After successfully receiving the TB1 data block and TB2 data block, the base station directly sends feedback information to the UE and the feedback information includes two failure identifiers, and then sends uplink multi-antenna scheduling signaling to the UE and the uplink multi-antenna scheduling signaling carries The NDI of the cached TB1 data block and the NDI of the TB2 data block. At this point, this step is specifically:

The UE receives the uplink multi-antenna scheduling signaling, extracts the NDI of the TB1 data block and the NDI of the TB2 data block from the uplink multi-antenna scheduling signaling according to the rules agreed in advance with the base station, and compares the cached NDI of the TB1 data block with the extracted TB1 The NDI of the data block and the NDI of the cached TB2 data block and the NDI of the extracted TB2 data block are compared. If the comparison results are not the same, two new data blocks are reacquired and used as TB1 data block and TB2 data respectively block, clear Buffer1 and Buffer2 and buffer the TB1 data block and TB2 data block in Buffer1 and Buffer2 respectively, send the TB1 data block in Buffer1 and the TB2 data block in Buffer2 to the base station through two channels, and then send the cached TB1 data block The NDI of the data block and the NDI of the TB2 data block are updated to the extracted NDI of the TB1 data block and the NDI of the TB2 data block respectively; if the result of the comparison is the same, it indicates that the base station has not successfully received the TB1 data block and the TB2 data block data block, the UE sends the TB1 data block buffered in Buffer1 and the TB2 data block buffered in Buffer2 to the base station again through two channels.

Wherein, after the UE sends the TB1 data block and the TB2 data block, the TB1 data block and the TB2 data block still remain in Buffer1 and Buffer2. In addition, the uplink multi-antenna scheduling signaling also carries the MCS (Modulation Code Scheme, encoding method) and/or RV (Redundancy Version, redundancy version) of the TB1 data block and the MCS and/or RV of the TB2 data block; the uplink multi-antenna scheduling The signaling can be DCIFormat4 (Downlink Control Information Format4, downlink control information format 4) of PDCCH (Physical Downlink Control Channel, physical downlink control channel) signaling format.

Among them, the TB1 data block and TB2 data block sent by the UE occupy the same time-frequency resource, but the channels for sending each data block are mutually orthogonal in space, so the base station can distinguish the TB1 data block and TB2 data block from each channel. TB2 data block.

Among them, when the UE sends the TB1 data block and the TB2 data block to the base station each time, the base station may successfully receive the TB1 data block and the TB2 data block, or fail to receive the TB1 data block and the TB2 data block, or only successfully receive the TB1 data block and the TB2 data block One of the data blocks was received and the other was not received, or two data blocks were received and one of the data blocks was in error. In addition, the base station may also find that the quality of the air interface between itself and the UE is poor.

Among them, if the base station only receives one of the data blocks and the other data block is not received, or receives two data blocks and an error occurs in one of the data blocks, the base station sends feedback information to the UE and the feedback information carries a success ID and a failure ID, and then send the uplink single-antenna scheduling signaling to the UE, and the uplink single-antenna scheduling signaling carries the NDI of a data block; or, if the base station finds that the quality of the air interface between itself and the UE is poor, then The base station will also send uplink single-antenna scheduling signaling to the UE, and the uplink single-antenna scheduling signaling carries an NDI of a data block.

Among them, the base station and the UE agree in advance that the uplink single-antenna scheduling signaling carries the NDI of the default data block, and the UE sets an indication information for indicating the default data block in advance or the base station passes RRC (Radio Resource Control, radio resource control protocol ) signaling to set indication information for indicating a default data block in the UE. For example, in this embodiment, the base station and the UE agree in advance that the default data block carried in the uplink single-antenna scheduling signaling is the TB1 data block, then the uplink single-antenna scheduling signaling carries the NDI of the TB1 data block, and then step 202 is performed.

Wherein, if the base station successfully receives the TB1 data block, the NDI of the TB1 data block carried in the uplink single-antenna scheduling signaling is an inverted NDI; if the base station fails to receive the TB1 data block, the uplink single-antenna scheduling signaling The NDI of the TB1 data block carried is the NDI that has not been flipped. In addition, the uplink single-antenna scheduling signaling may be DCI format0 of the PDCCH signaling format.

Step 202: The UE receives the uplink single-antenna scheduling signaling sent by the base station, and the uplink single-antenna scheduling signaling carries an NDI of a data block;

It should be noted that: the uplink single-antenna scheduling signaling carries the NDI of the TB1 data block, but the UE does not know that the NDI carried in the uplink single-antenna scheduling signaling is the NDI of the TB1 data block.

Step 203: The UE acquires the pre-set indication information, and determines the indicated TB1 data block according to the acquired indication information, acquires Buffer1 for caching the TB1 data block and Buffer2 for caching another data block, that is, the TB2 data block, and clears the cached data in Buffer2 TB2 data block;

Step 204: The UE sends the TB1 data block to the base station according to the cached NDI of the TB1 data block and the NDI of the TB1 data block carried in the uplink single-antenna scheduling signaling;

Specifically, the UE compares the cached NDI of the TB1 data block with the NDI of the TB1 data block carried in the uplink single-antenna scheduling signaling. If the two are the same, the UE sends the TB1 data block in Buffer1 to the base station through a channel. If If the two are not the same, the UE obtains the new data block and uses it as a new TB1 data block, clears Buffer1 and caches the new TB1 data block in Buffer1, and then sends the TB1 data block in Buffer1 to the base station through a channel , and update the cached NDI of the TB1 data block to the NDI of the TB1 data block carried in the uplink single-antenna scheduling signaling.

Wherein, the UE may not clear Buffer1, and may directly replace the data block in Buffer1 with a new TB1 data block.

Among them, if the UE compares that the two NDIs are the same, it means that the base station has not successfully received the TB1 data block, and the UE needs to retransmit the TB1 data block to the base station. If the UE compares the two NDIs are not the same, it means that the base station successfully received When the TB1 data block arrives, the UE needs to transmit a new TB1 data block to the base station.

Wherein, if the base station successfully receives the TB1 data block sent by the UE, the base station flips the cached NDI of the TB1 data block, and then updates the cached NDI of the TB1 data block to the flipped NDI of the TB1 data block. Then the base station will send feedback information to the UE and the feedback information carries a success identifier. If the base station still needs the UE to transmit a new data block, it will send uplink multi-antenna scheduling signaling to the UE at the same time, and the uplink multi-antenna scheduling signaling carries The NDI of the TB1 data block and the NDI of the TB2 data block are cached, and then step 205 is performed.

If the base station fails to receive the TB1 data block sent by the UE, the base station directly sends feedback information to the UE and the feedback information carries a failure flag, and then sends the uplink single-antenna scheduling signaling to the UE and the uplink single-antenna scheduling signaling The NDI carrying the cached TB1 data block continues to execute step 202 .

Step 205: The UE receives the uplink multi-antenna scheduling signaling sent by the base station, and extracts the NDI of the TB1 data block and the NDI of the TB2 data block from the uplink multi-antenna scheduling signaling according to the rules previously agreed with the base station;

Step 206: The UE determines the data block of TB1 in Buffer1 according to the cached NDI of the TB1 data block and the extracted NDI of the TB1 data block;

Specifically, the UE compares the extracted NDI of the TB1 data block with the cached NDI of the TB1 data block, and if the two are not the same, acquires a new data block, uses the acquired data block as a new TB1 data block, and clears the NDI in Buffer1. TB1 data block, cache the acquired new TB1 data block in Buffer1, and update the NDI of the cached TB1 data block to the NDI of the extracted TB1 data block, if the two are the same, keep the TB1 data cached in Buffer1 piece.

Step 207: The UE updates the cached NDI of the TB2 data block to the extracted NDI of the TB2 data block, reacquires the TB2 data block, and caches the reacquired TB2 data block in Buffer2;

Wherein, since Buffer2 is cleared, regardless of the NDI value of the TB2 data block in the uplink multi-antenna scheduling signaling, a new TB2 data block is acquired and cached in buffer2.

Step 208: The UE sends the TB1 data block buffered in Buffer1 and the TB2 data block in Buffer2 to the base station through two channels.

Wherein, if the base station successfully receives the TB1 data block and the TB2 data block, the base station flips the cached NDI of the TB1 data block and the NDI of the TB2 data block, and updates the cached NDI of the TB1 data block and the NDI of the TB2 data block to flip After the NDI of the TB1 data block and the NDI of the IB2 data block, and then send feedback information to the UE and the feedback information carries two success identifiers. If the UE needs to transmit a new data block, then send the uplink multi-antenna scheduling signaling to the UE at the same time. The UE and the uplink multi-antenna scheduling signaling carries the cached NDI of the TB1 data block and the NDI of the TB2 data block; if the base station fails to receive the TB1 data block and the TB2 data block, the base station directly sends feedback information to the UE and the feedback The information includes two failure identities, and then the uplink multi-antenna scheduling signaling is sent to the UE, and the uplink multi-antenna scheduling signaling carries the cached NDI of the TB1 data block and the NDI of the TB2 data block, and then returns to step 201 .

Among them, if the base station only receives one of the data blocks and the other data block is not received, or receives two data blocks and an error occurs in one of the data blocks, the base station sends feedback information to the UE at this time and the feedback information carries a A success flag and a failure flag, followed by sending uplink single-antenna scheduling signaling to the UE, and the uplink single-antenna scheduling signaling includes the NDI of the TB1 data block, or if the base station finds that the quality of the air interface between itself and the UE is poor, then The base station will also send uplink single-antenna scheduling signaling to the UE, and then return to step 202 .

Wherein, in this embodiment, the base station and the UE may agree in advance that the default data block is the TB2 data block, and the process of determining the transmission data block is the same as the above content, and will not be described in detail here.

In the embodiment of the present invention, the UE receives the uplink single-antenna scheduling signaling carrying the TB1 data block NDI sent by the base station, obtains the pre-set indication information, the indication information is used to indicate the TB1 data block, and determines the TB1 data block indicated by the indication information , according to the NDI of the TB1 data block carried in the uplink single-antenna scheduling signaling, determine the TB1 data block in Buffer1, and then send the TB1 data block in Buffer1 to the base station. In this way, the UE knows which data block to transmit to the base station after receiving the uplink single-antenna scheduling signaling sent by the base station.

Example 3

As shown in the figure, an embodiment of the present invention provides a method for determining a transmission data block, including:

Steps 301-302: are the same as 201-202 in the embodiment, and will not be described in detail here;

Wherein, the base station and the UE agree in advance that the uplink single-antenna scheduling signaling carries the NDI of the default data block, and the UE sets an indication information for indicating the default data block in advance. For example, in this embodiment, the base station and the UE agree in advance that the default data block carried in the uplink single-antenna scheduling signaling is the TB1 data block, and the uplink single-antenna scheduling signaling carries the NDI of the TB1 data block.

Step 303: The UE obtains the pre-set indication information, determines the TB1 data block indicated by the indication information, and obtains Buffer1 for caching the TB1 data block;

Steps 304-306: are the same as 204-206 in Embodiment 2, and will not be described in detail here;

Step 307: The UE acquires Buffer2 that caches another data block, that is, the TB2 data block, and determines the TB2 data block in Buffer2 according to the NDI of the cached TB2 data block and the NDI of the TB2 data block extracted from the uplink multi-antenna scheduling signaling ;

Specifically, the UE acquires Buffer2 that caches another data block, that is, the TB2 data block, compares the NDI of the TB2 data block extracted from the uplink multi-antenna scheduling signaling with the cached NDI of the TB2 data block, and if the two are not the same, obtain New data block, use the acquired data block as a new TB2 data block and clear the TB2 data block in Buffer2, cache the acquired new TB2 data block in Buffer2, and update the NDI of the cached TB2 data block to If the NDI of the TB2 data block extracted from the uplink multi-antenna scheduling signaling is the same, the TB2 data block cached in Buffer2 is retained.

Wherein, the UE may not clear Buffer2, and may directly replace the data block in Buffer2 with a new TB2 data block.

Step 308: The UE sends the TB1 data block buffered in Buffer1 and the TB2 data block buffered in Buffer2 to the base station through two channels.

Wherein, in this embodiment, the base station and the UE may agree in advance that the default data block is the TB2 data block, and the process of determining the transmission data block is the same as the above content, and will not be described in detail here.

In the embodiment of the present invention, the UE receives the uplink single-antenna scheduling signaling carrying the TB1 data block NDI sent by the base station, obtains the pre-set indication information, the indication information is used to indicate the TB1 data block, and determines the TB1 data block indicated by the indication information , according to the NDI of the TB1 data block carried in the uplink single-antenna scheduling signaling, determine the TB1 data block in Buffer1, and then send the TB1 data block in Buffer1 to the base station. In this way, the UE knows which data block to transmit to the base station after receiving the uplink single-antenna scheduling signaling sent by the base station.

Example 4

As shown in the figure, an embodiment of the present invention provides a method for determining a transmission data block, including:

Step 401: the same as step 201 of Embodiment 2, and will not be repeated here;

Wherein, if the base station fails to receive a certain data block, it sets an indication information to indicate the data block, and then sends the uplink single-antenna scheduling signaling to the UE, and the uplink single-antenna scheduling signaling carries the unsuccessfully received data The NDI of the block and the instructions for setting it. Assuming that, in this embodiment, the base station fails to receive the TB1 data block, the base station sets indication information for indicating the TB1 data block.

Step 402: The UE receives the uplink single-antenna scheduling signaling sent by the base station, and the uplink single-antenna scheduling signaling carries indication information for indicating the TB1 data block and the NDI of the TB1 data block;

Step 403: The UE extracts the indication information from the uplink single-antenna scheduling signaling, determines the indicated TB1 data block according to the indication information, obtains Buffer1 for buffering TB1, acquires Buffer2 for buffering another data block, that is, TB2 data block, and clears Buffer2 ;

Steps 404-408: are the same as steps 204-208 in Embodiment 2, and will not be repeated here.

Wherein, in this embodiment, if the base station fails to receive the TB2 data block, the uplink single-antenna scheduling signaling carries the indication information for indicating the TB2 data block and the NDI of the TB2 data block, and determines the process of transmitting the data block It is the same as above, and will not be described in detail here.

In the embodiment of the present invention, the UE receives the uplink single-antenna scheduling signaling that carries the TB1 data block NDI and the indication information for indicating the TB1 data block sent by the base station, extracts the indication information from the uplink single-antenna scheduling signaling, and determines the indication For the TB1 data block indicated by the information, determine the TB1 data block in Buffer1 according to the NDI of the TB1 data block carried in the uplink single-antenna scheduling signaling, and then send the TB1 data block in Buffer1 to the base station. In this way, the UE knows which data block to transmit to the base station after receiving the uplink single-antenna scheduling signaling sent by the base station.

Example 5

As shown in the figure, an embodiment of the present invention provides a method for determining a transmission data block, including:

Step 501: the same as step 301 of Embodiment 3, and will not be described in detail here;

Wherein, if the base station fails to receive a certain data block, it sets an indication information to indicate the data block, and then sends the uplink single-antenna scheduling signaling to the UE, and the uplink single-antenna scheduling signaling carries the unsuccessfully received The NDI of the data block and the setting instructions. Assuming that the base station fails to receive the TB1 data block in this embodiment, the base station sets indication information for indicating the TB1 data block.

Step 502: The UE receives the uplink single-antenna scheduling signaling sent by the base station, and the uplink single-antenna scheduling signaling carries indication information for indicating the TB1 data block and the NDI of the TB1 data block;

Step 503: The UE extracts indication information from the uplink antenna scheduling signaling, determines the indicated TB1 data block according to the indication information, and obtains Buffer1 for buffering the TB1 data block;

Steps 504-508: are the same as steps 304-308 in Embodiment 3, and will not be repeated here.

Wherein, in this embodiment, if the base station fails to receive the TB2 data block, the uplink single-antenna scheduling signaling carries the indication information for indicating the TB2 data block and the NDI of the TB2 data block, and determines the process of transmitting the data block It is the same as above, and will not be described in detail here.

In the embodiment of the present invention, the UE receives the uplink single-antenna scheduling signaling that carries the TB1 data block NDI and the indication information used to indicate the TB1 data block sent by the base station, and determines the indication information extracted from the uplink single-antenna scheduling signaling. For the TB1 data block indicated by the indication information, determine the TB1 data block in Buffer1 according to the NDI of the TB1 data block carried in the uplink single-antenna scheduling signaling, and then send the TB1 data block in Buffer1 to the base station. In this way, the UE knows which data block to transmit to the base station after receiving the uplink single-antenna scheduling signaling sent by the base station.

Example 6

As shown in the figure, an embodiment of the present invention provides a method for determining a transmission data block, including:

Step 601: the same as step 201 of Embodiment 2, and will not be described in detail here;

Wherein, the base station and the UE agree in advance that the uplink single-antenna scheduling signaling carries the NDI of the default data block, and the UE sets an indication information for indicating the default data block in advance. For example, in this embodiment, the base station and the UE agree in advance that the default data block carried in the uplink single-antenna scheduling signaling is the TB1 data block, then the uplink single-antenna scheduling signaling carries the NDI of the TB1 data block, and then step 602 is performed.

Step 602: The UE receives the uplink single-antenna scheduling signaling sent by the base station, and the uplink single-antenna scheduling signaling carries the NDI of the TB1 data block;

Step 603: The UE acquires the pre-set indication information, determines the TB1 data block corresponding to the acquired indication information, and acquires Buffer1 for buffering the TB1 data block and Buffer2 for buffering another data block, that is, the TB2 data block;

Step 604: UE clears the TB1 data block cached in Buffer1 and the TB2 data block cached in Buffer2, obtains a new TB1 data block and sends the TB1 data block to the base station;

Specifically: UE clears the obtained Buffer1 and Buffer2, obtains a new data block and uses it as a new TB1 data block, caches the new TB1 data block in Buffer1, and then sends the TB1 data block in Buffer1 to the The base station updates the cached NDI of the TB1 data block to the NDI of the TB1 data block carried in the uplink single-antenna scheduling signaling.

Wherein, if the base station successfully receives the TB1 data block sent by the UE, the base station flips the cached NDI of the TB1 data block, and then updates the cached NDI of the TB1 data block to the flipped NDI of the TB1 data block. Then the base station will send feedback information to the UE and the feedback information will carry a success identifier. If the UE needs to transmit a new data block, it will send the uplink multi-antenna scheduling signaling to the UE, and the uplink multi-antenna scheduling signaling will carry the cached NDI of the TB1 data block and ND2 of the TB2 data block, and then step 605 is executed.

If the base station fails to receive the TB1 data block sent by the UE, the base station directly sends feedback information to the UE and the feedback information carries a failure flag, and then sends the uplink single-antenna scheduling signaling to the UE and the uplink single-antenna scheduling signaling The NDI carrying the cached TB1 data block continues to execute step 602 .

Step 605: The UE receives the uplink multi-antenna scheduling signaling sent by the base station, and extracts the NDI of the TB1 data block and the NDI of the TB2 data block from the uplink multi-antenna scheduling signaling according to the rules agreed with the base station;

Step 606: The UE updates the cached NDI of the TB1 data block to the extracted NDI of the TB1 data block, clears Buffer1, reacquires a new TB1 data block and caches it in Buffer1;

Wherein, the UE may not clear Buffer1, and may directly replace the data block in Buffer1 with a new TB1 data block.

Step 607: The UE updates the cached NDI of the TB2 data block to the extracted NDI of the TB2 data block, reacquires the TB2 data block, and caches the reacquired TB2 data block in Buffer2;

Step 608: The UE sends the buffered TB1 data block in Buffer1 and the TB2 data block in Buffer2 to the base station through two channels.

Wherein, in this embodiment, the base station and the UE may agree in advance that the default data block is the TB2 data block, and the process of determining the transmission data block is the same as the above content, and will not be described in detail here.

In the embodiment of the present invention, the UE receives the uplink single-antenna scheduling signaling carrying the TB1 data block NDI sent by the base station, obtains the pre-set indication information, the indication information is used to indicate the TB1 data block, and determines the TB1 data block corresponding to the indication information , according to the NDI of the TB1 data block carried in the uplink single-antenna scheduling signaling, determine the TB1 data block in Buffer1, and then send the TB1 data block in Buffer1 to the base station. In this way, the UE knows which data block to transmit to the base station after receiving the uplink single-antenna scheduling signaling sent by the base station.

Example 7

As shown in Figure 7, an embodiment of the present invention provides a device for determining a transmission data block, including:

The first receiving module 701 is configured to receive uplink single-antenna scheduling signaling, where the uplink single-antenna scheduling signaling carries an NDI of one data block;

The first acquiring module 702 is configured to acquire indication information, where the indication information is used to indicate a data block scheduled by uplink single-antenna scheduling signaling;

The first sending module 703 is configured to send the data block indicated by the indication information according to the NDI carried in the uplink single-antenna scheduling signaling.

The first obtaining module 702 specifically includes:

an acquisition unit, configured to acquire pre-set instruction information, or,

The extracting unit is used to extract indication information from the uplink single antenna.

Wherein, the first sending module 703 specifically includes:

A first determining unit, configured to determine the data block indicated by the indication information, and obtain a buffer for caching the indicated data block;

The first comparison unit is configured to compare the NDI of the data block indicated by the cache with the NDI carried in the uplink single-antenna scheduling signaling;

The first update unit is used to acquire a new data block and use it as the indicated data block if the two are different, update the acquired data block in the buffer to the new data block, and cache the indicated data block Update the NDI of NDI to the NDI carried in the uplink single-antenna scheduling signaling; if they are the same, keep the data block indicated in the acquired buffer;

The first sending unit is configured to send the acquired data block indicated by the cache in the buffer.

The first sending module 703 specifically includes:

The second determining unit is configured to determine the data block indicated by the indication information, and obtain a buffer for caching the indicated data block;

The first cache unit is configured to acquire a new data block and use the new data block as the indicated data block, and update the acquired data block in the buffer to the new data block;

The second sending unit is configured to update the NDI of the data block indicated by the buffer to the NDI carried in the uplink single-antenna scheduling signaling and send the obtained data block indicated by the buffer in the buffer.

Further, the device also includes:

The clearing module is used to acquire buffers for caching other data blocks, and clear the buffers for caching other data blocks.

Further, the device also includes:

The second receiving module is configured to receive uplink multi-antenna scheduling signaling, and the uplink multi-antenna scheduling signaling carries NDI of two data blocks;

The first comparison module is used to compare the NDI of the data block indicated by the cache with the NDI of the data block indicated by the uplink multi-antenna scheduling signaling, and if the two are different, acquire a new data block and cache the buffer of the indicated data block Update the data block in the device to the new data block, update the NDI of the indicated data block to the NDI of the indicated data block carried in the uplink multi-antenna scheduling signaling, and if the same, reserve the buffer for caching the indicated data block in the data block;

The second acquiring module is configured to acquire new data blocks and cache them in a buffer for caching other data blocks, and update the cached NDIs of other data blocks to the NDIs of other data blocks carried in the uplink multi-antenna scheduling signaling;

The second sending module is configured to send the data block cached in the buffer for caching the indicated data block and the data blocks cached in the buffer for caching other data blocks.

Further, the device also includes:

A third receiving module, configured to receive uplink multi-antenna scheduling signaling, where the uplink multi-antenna scheduling signaling carries NDI of two data blocks;

The third acquiring module is configured to acquire a new data block and update the data block in the buffer of the cache indicated data block to the new data block, and update the NDI of the cache indicated data block to the uplink multi-antenna scheduling signaling NDI carrying the indicated data block.

The fourth obtaining module is used to obtain new data blocks and cache them in the buffer for caching other data blocks, and update the NDI for caching other data blocks to the NDI for other data blocks carried in the uplink multi-antenna scheduling signaling;

The third sending module is configured to send the data block cached in the buffer for caching the indicated data block and the data blocks cached in the buffer for caching other data blocks.

In the embodiment of the present invention, after receiving the uplink single-antenna scheduling signaling sent by the base station, the UE acquires indication information, the indication information is used to indicate the data block scheduled by the uplink single-antenna scheduling signaling, and acquires the data block corresponding to the indication information , and then send the data block to the base station. In this way, the UE knows which data block to transmit to the base station after receiving the uplink single-antenna scheduling signaling sent by the base station.

All or part of the technical solutions provided by the above embodiments can be realized by software programming, and the software program is stored in a readable storage medium, such as a hard disk, an optical disk or a floppy disk in a computer.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (14)

1. A method for determining transmission data blocks, characterized in that the method comprises: receiving uplink single-antenna scheduling signaling, where the uplink single-antenna scheduling signaling carries a new data indication NDI of a data block; Acquiring indication information, where the indication information is used to indicate the data block scheduled by the uplink single-antenna scheduling signaling; The data block indicated by the indication information is transmitted according to the NDI carried in the uplink single-antenna scheduling signaling. 2. The method according to claim 1, wherein said acquiring instruction information specifically comprises: Get pre-set instructions, or, Extracting the indication information from the uplink single-antenna scheduling signaling. 3. The method according to claim 1, wherein the transmitting the data block indicated by the indication information according to the NDI carried in the uplink single-antenna scheduling signaling specifically comprises: determining the data block indicated by the indication information, and obtaining a buffer for caching the indicated data block; comparing the cached NDI of the indicated data block with the NDI carried in the uplink single-antenna scheduling signaling; If the two are different, acquire a new data block and use it as the indicated data block, update the acquired data block in the buffer to the new data block, and cache the indicated data The NDI of the block is updated to the NDI carried in the uplink single-antenna scheduling signaling; if the same, the indicated data block cached in the obtained buffer is retained; sending the indicated data block buffered in the acquired buffer. 4. The method according to claim 1, wherein the transmitting the data block indicated by the indication information according to the NDI carried in the uplink single-antenna scheduling signaling specifically comprises: determining the data block indicated by the indication information, and obtaining a buffer for caching the indicated data block; using the new data block as the indicated data block, and updating the acquired data block in the buffer to the new data block; updating the cached NDI of the indicated data block to the NDI carried in the uplink single-antenna scheduling signaling, and sending the indicated data block cached in the acquired buffer. 5. The method according to claim 4 or 5, wherein after determining the data block indicated by the indication information and obtaining the buffer for caching the indicated data block, further comprising: A buffer for caching other data blocks is obtained, and the buffer for caching the other data blocks is cleared. 6. The method according to claim 5, wherein after transmitting the data block indicated by the indication information according to the NDI carried in the uplink single-antenna scheduling signaling, further comprising: receiving uplink multi-antenna scheduling signaling, where the uplink multi-antenna scheduling signaling carries NDI of two data blocks; Comparing the cached NDI of the indicated data block with the NDI of the indicated data block carried in the uplink multi-antenna scheduling signaling, if the two are different, acquiring a new data block and storing the cached NDI of the indicated data block The data block in the data block buffer is updated with the new data, and the cached NDI of the indicated data block is updated to the NDI of the indicated data block carried in the uplink multi-antenna scheduling signaling, if the same, then retaining cached data blocks in the buffer of said indicated data blocks; Acquiring a new data block and caching it in the cached buffer of the other data blocks, updating the cached NDI of the other data block to the NDI of the other data block carried in the uplink multi-antenna scheduling signaling; sending the data block cached in the buffer that caches the indicated data block and the data block cached in the buffer that caches the other data blocks. 7. The method according to claim 5, wherein after transmitting the data block indicated by the indication information according to the NDI carried in the uplink single-antenna scheduling signaling, further comprising: receiving uplink multi-antenna scheduling signaling, where the uplink multi-antenna scheduling signaling carries NDI of two data blocks; Acquiring a new data block and updating the cached data block in the buffer of the indicated data block to the new data block, updating the cached NDI of the indicated data block to the uplink multi-antenna scheduling The NDI of the indicated data block carried in the signaling. Acquiring a new data block and caching it in the cached buffer of the other data blocks, updating the cached NDI of the other data block to the NDI of the other data block carried in the uplink multi-antenna scheduling signaling; sending the data block cached in the buffer that caches the indicated data block and the data block cached in the buffer that caches the other data blocks. 8. A device for determining a transmission data block, characterized in that the device comprises: The first receiving module is configured to receive uplink single-antenna scheduling signaling, where the uplink single-antenna scheduling signaling carries a new data identifier NDI of a data block; A first acquiring module, configured to acquire indication information, where the indication information is used to indicate a data block scheduled by the uplink single-antenna scheduling signaling; The first sending module is configured to send the data block indicated by the indication information according to the NDI carried in the uplink single-antenna scheduling signaling. 9. The device according to claim 8, wherein the acquiring module specifically comprises: an acquisition unit, configured to acquire pre-set instruction information, or, An extracting unit, configured to extract the indication information from the uplink single antenna. 10. The device according to claim 8, wherein the first sending module specifically comprises: A first determining unit, configured to determine the data block indicated by the indication information, and acquire a buffer for caching the indicated data block; A first comparing unit, configured to compare the cached NDI of the indicated data block with the NDI carried in the uplink single-antenna scheduling signaling; The first update unit is configured to acquire a new data block and use it as the indicated data block, update the acquired data block in the buffer to the new data block, and cache the indicated data block The NDI of the data block is updated to the NDI carried in the uplink single-antenna scheduling signaling; if the same, the indicated data block cached in the obtained buffer is retained; A first sending unit, configured to send the indicated data block buffered in the acquired buffer. 11. The device according to claim 8, wherein the first sending module specifically comprises: The second determining unit is configured to determine the data block indicated by the indication information, and obtain a buffer for caching the indicated data block; a first cache unit, configured to use the new data block as the indicated data block, and update the acquired data block in the buffer to the new data block; The second sending unit is configured to update the buffered NDI of the indicated data block to the NDI carried in the uplink single-antenna scheduling signaling, and send the indicated data block buffered in the acquired buffer. 12. The device according to claim 10 or 11, further comprising: The emptying module is used to obtain the buffer for caching other data blocks, and empty the buffer for caching the other data blocks. 13. The device of claim 12, further comprising: The second receiving module is configured to receive uplink multi-antenna scheduling signaling, where the uplink multi-antenna scheduling signaling carries NDI of two data blocks; The first comparison module is configured to compare the buffered NDI of the indicated data block with the NDI of the indicated data block carried in the uplink multi-antenna scheduling signaling, and if the two are different, obtain a new data block and updating the cached data block in the buffer of the indicated data block with the new data, and updating the cached NDI of the indicated data block to the indicated data block carried in the uplink multi-antenna scheduling signaling NDI, if the same, then retain the data block in the buffer of the indicated data block; The second acquiring module is configured to acquire a new data block and cache it in the buffer for caching the other data blocks, and update the cached NDI of the other data block to the one carried in the uplink multi-antenna scheduling signaling NDI of other data blocks; The second sending module is configured to send the data block cached in the buffer that caches the indicated data block and the data block cached in the buffer that caches the other data blocks. 14. The device of claim 12, further comprising: A third receiving module, configured to receive uplink multi-antenna scheduling signaling, where the uplink multi-antenna scheduling signaling carries NDI of two data blocks; The third acquisition module is configured to acquire a new data block and update the cached data block in the buffer of the indicated data block to the new data block, and update the cached NDI of the indicated data block NDI of the indicated data block carried in the uplink multi-antenna scheduling signaling. The fourth acquiring module is configured to acquire new data blocks and cache them in the cached buffers of the other data blocks, and update the cached NDIs of the other data blocks to the ones carried in the uplink multi-antenna scheduling signaling. Describe the NDI of other data blocks; A third sending module, configured to send the data block cached in the buffer that caches the indicated data block and the data block cached in the buffer that caches the other data blocks.

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