Methods, apparatus and systems for determining a transport block size in a wireless communication
Methods, apparatus and systems for determining a transport block size in a wireless communication are disclosed. In one embodiment, a method performed by a wireless communication device is disclosed. The method comprises: receiving control information from a wireless communication node, wherein the control information includes a plurality of transmission parameters related to transport blocks to be transmitted between the wireless communication device and the wireless communication node; calculating an intermediate transport block size (TBS) for the transport blocks based on the plurality of transmission parameters; modifying the intermediate TBS to generate a modified TBS in response to an event that the intermediate TBS is smaller than a threshold; and determining a final TBS for the transport blocks based on a TBS that is closest to the modified TBS, among TBSs that are in a quantized set and not smaller than the modified TBS.
1. A method performed by a wireless communication device, the method comprising:
receiving control information from a wireless communication node, wherein the control information includes a plurality of transmission parameters related to transport blocks to be transmitted between the wireless communication device and the wireless communication node;
calculating an intermediate transport block size (TBS) for the transport blocks based on the plurality of transmission parameters;
modifying the intermediate TBS to generate a modified TBS in response to an event that the intermediate TBS is smaller than a threshold; and
determining a final TBS for the transport blocks based on a TBS that is closest to the modified TBS, among TBSs that are in a quantized set and not smaller than the modified TBS.
2. The method of claim 1 , wherein the plurality of transmission parameters comprises:
a modulation order configured for transmission of the transport blocks;
a code rate configured for transmission of the transport blocks; and
a quantity of physical resource blocks configured for transmission of the transport blocks.
3. The method of claim 2 , wherein modifying the intermediate TBS comprises:
determining a correction factor based on: the quantity of physical resource blocks, the modulation order and the code rate; and
modifying the intermediate TBS by the correction factor to generate the modified TBS.
4. The method of claim 2 , wherein calculating the intermediate TBS comprises:
calculating a multiplication product of: the modulation order, the code rate, the quantity of physical resource blocks, and a quantity of layers configured for transmission of the transport blocks; and
using the multiplication product as the intermediate TBS.
5. The method of claim 1 , wherein modifying the intermediate TBS comprises:
dividing the intermediate TBS by a quantization step that is equal to a power of two to generate a quotient;
rounding down the quotient to generate a first integer;
multiplying the first integer by the quantization step to generate a second integer; and
generating the modified TBS based on the second integer.
6. A method performed by a wireless communication node, the method comprising:
generating a plurality of transmission parameters related to transport blocks;
transmitting control information that comprises the plurality of transmission parameters;
calculating an intermediate transport block size (TBS) for the transport blocks based on the plurality of transmission parameters;
modifying the intermediate TBS to generate a modified TBS in response to an event that the intermediate TBS is smaller than a threshold;
determining a final TBS for the transport blocks based on a TBS that is closest to the modified TBS, among TBSs that are in a quantized set and not smaller than the modified TBS; and
communicating with a wireless communication device using the transport blocks based on the final TBS.
7. The method of claim 6 , wherein the plurality of transmission parameters comprises:
a modulation order configured for transmission of the transport blocks;
a code rate configured for transmission of the transport blocks; and
a quantity of physical resource blocks configured for transmission of the transport blocks.
8. The method of claim 7 , wherein modifying the intermediate TBS comprises:
determining a correction factor based on: the quantity of physical resource blocks, the modulation order and the code rate; and
modifying the intermediate TBS by the correction factor to generate the modified TBS.
9. The method of claim 7 , wherein calculating the intermediate TBS comprises:
calculating a multiplication product of: the modulation order, the code rate, the quantity of physical resource blocks, and a quantity of layers configured for transmission of the transport blocks; and
using the multiplication product as the intermediate TBS.
10. The method of claim 6 , wherein modifying the intermediate TBS comprises:
dividing the intermediate TBS by a quantization step that is equal to a power of two to generate a quotient;
rounding down the quotient to generate a first integer;
multiplying the first integer by the quantization step to generate a second integer; and
generating the modified TBS based on the second integer.
11. A first communication apparatus comprising a processor and a memory, wherein the memory stores instructions that, when executed, causes the processor to implement a method recited in any of claims 1 to 5 .
12. A first communication apparatus comprising a processor and a memory, wherein the memory stores instructions that, when executed, causes the processor to implement a method recited in any of claims 6 to 10 .
13. A non-transitory computer-readable medium having computer-executable instructions stored thereon, the computer-executable instructions, when executed by a processor, causing the processor to implement a method recited in any of claims 1 to 10 .