Method and apparatus for cell initial access and paging in wireless cellular communication system
The present disclosure relates to a communication technique of fusing a 5G communication system for supporting higher data transmission rate beyond a 4G system with an IoT technology and a system thereof. The system may be used for an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety related service, or the like) based on the 5G communication technology and the IoT related technology. The present disclosure discloses a method and apparatus for inserting an index into a code block as a unit in which a channel code is executed and transmitting the same.
1. A method performed by a transmission node in a communication system, the method comprising:
obtaining a transport block (TB) and a cyclic redundancy check (CRC) for the TB;
obtaining a plurality of code blocks based on segmenting a plurality of bits including the TB and the CRC for the TB;
identifying a plurality of code block indexes for the plurality of code blocks;
obtaining a signal to be transmitted based on the plurality of code blocks and the plurality of code block indexes, wherein the signal includes the plurality of code blocks and each of the plurality of code blocks is attached with information associated with a corresponding code block index among the plurality of code block indexes; and
transmitting the signal to a reception node.
2. The method of claim 1 , wherein obtaining the signal comprises:
attaching each of a plurality of indications respectively indicating the plurality of code block indexes to a corresponding code block among the plurality of code blocks; and
performing channel coding for obtaining the signal based on the plurality of code blocks to which the plurality of indications are respectively attached,
wherein the information associated with the corresponding code block indexes is the indication of the corresponding code block index.
3. The method of claim 2 , wherein:
each of the plurality of indications is attached on a head part of the corresponding code block and a CRC for the corresponding code block is attached on a last part of the corresponding code block; or
each of the plurality of indications is attached on a last part of the corresponding code block among the plurality of code blocks and a head part of the CRC for the corresponding code block.
4. The method of claim 1 , wherein obtaining the signal comprises:
identifying a plurality of CRCs for the plurality of code blocks;
performing an XOR operation between each of the plurality of code block indexes and at least one bit of a CRC for a corresponding code block among the plurality of CRCs for the plurality of code blocks;
attaching each of the plurality of CRCs for the plurality of code blocks to which the XOR operation is applied to a corresponding code block among the plurality of code blocks; and
performing channel coding for obtaining the signal based on the plurality of code blocks to which the plurality of CRCs for the plurality of code blocks are respectively attached,
wherein the information associated with the corresponding code block indexes is the CRC to which the XOR operation is applied.
5. The method of claim 1 , wherein:
the plurality of code block indexes have the same predetermined bit length, or
the plurality of code block indexes are corresponded to non-negative consecutive integers, consecutive natural numbers, or predetermined sequences.
6. The method of claim 1 , wherein:
information on a type of transmission of the signal is transmitted to the reception node, and
the type is associated with the signal being based on the plurality of code block indexes.
7. A transmission node in a communication system, the transmission node comprising:
a transceiver; and
a processor coupled with the transceiver and configured to:
obtain a transport block (TB) and a cyclic redundancy check (CRC) for the TB;
obtain a plurality of code blocks based on segmenting a plurality of bits including the TB and the CRC for the TB;
identify a plurality of code block indexes for the plurality of code blocks;
obtain a signal to be transmitted based on the plurality of code blocks and the plurality of code block indexes, wherein the signal includes the plurality of code blocks and each of the plurality of code blocks is attached with information associated with a corresponding code block index among the plurality of code block indexes; and
transmit the signal to a reception node.
8. The transmission node of claim 7 , wherein, for obtaining the signal, the processor is further configured to:
attach each of a plurality of indications respectively indicating the plurality of code block indexes to a corresponding code block among the plurality of code blocks; and
perform channel coding for obtaining the signal based on the plurality of code blocks to which the plurality of indications are respectively attached,
wherein the information associated with the corresponding code block indexes is the indication of the corresponding code block index.
9. The transmission node of claim 8 , wherein:
each of the plurality of indications is attached on a head part of the corresponding code block and a CRC for the corresponding code block is attached on a last part of the corresponding code block; or
each of the plurality of indications is attached on a last part of the corresponding code block among the plurality of code blocks and a head part of the CRC for the corresponding code block.
10. The transmission node of claim 7 , wherein, for obtaining the signal, the processor is further configured to:
identify a plurality of CRCs for the plurality of code blocks;
perform an XOR operation between each of the plurality of code block indexes and at least one bit of a CRC for a corresponding code block among the plurality of CRCs for the plurality of code blocks;
attach each of the plurality of CRCs for the plurality of code blocks to which the XOR operation is applied to a corresponding code block among the plurality of code blocks; and
perform channel coding for obtaining the signal based on the plurality of code blocks to which the plurality of CRCs for the plurality of code blocks are respectively attached,
wherein the information associated with the corresponding code block indexes is the CRC to which the XOR operation is applied.
11. The transmission node of claim 7 , wherein:
the plurality of code block indexes have the same predetermined bit length, or
the plurality of code block indexes are corresponded to non-negative consecutive integers, consecutive natural numbers, or predetermined sequences.
12. The transmission node of claim 7 , wherein:
information on a type of transmission of the signal is transmitted to the reception node, and
the type is associated with the signal being based on the plurality of code block indexes.
13. A method performed by a reception node in a communication system, the method comprising:
receiving a signal from a transmission node;
obtaining, based on the signal, a plurality of code blocks and a plurality of code block indexes for the plurality of code blocks, wherein the signal includes the plurality of code blocks and each of the plurality of code blocks is attached with information associated with a corresponding code block index among the plurality of code block indexes;
obtaining a plurality of bits including a transport block (TB) and a cyclic redundancy check (CRC) for the TB based on the plurality of code blocks, wherein an order of the plurality of code blocks is identified by the plurality of code block indexes; and
determining whether the TB is successfully received based on the CRC.
14. The method of claim 13 , wherein the plurality of code blocks are obtained where each of a plurality of indications respectively indicating the plurality of code block indexes is attached to a corresponding code block among the plurality of code blocks,
wherein the information associated with the corresponding code block indexes is the indication of the corresponding code block index, and
wherein:
each of the plurality of indications is attached on a head part of the corresponding code block and a CRC for the corresponding code block is attached on a last part of the corresponding code block; or
each of the plurality of indications is attached on a last part of the corresponding code block among the plurality of code blocks and a head part of the CRC for the corresponding code block.
15. The method of claim 13 , wherein the plurality of code blocks are obtained where each of the plurality of code block is attached to a CRC for a corresponding code block to which an XOR operation is applied between a corresponding code block index and at least one bit of the CRC for the corresponding code block, and
wherein the information associated with the corresponding code block indexes is the CRC to which the XOR operation is applied.
16. The method of claim 13 , wherein:
the plurality of code block indexes have the same predetermined bit length, or
the plurality of code block indexes are corresponded to non-negative consecutive integers, consecutive natural numbers, or predetermined sequences, and
wherein:
information on a type of transmission of the signal is received from the transmission node, and
the type is associated with the signal being based on the plurality of code block indexes.
17. A reception node in a communication system, the reception node comprising:
a transceiver; and
a processor coupled with the transceiver and configured to:
receive a signal from a transmission node;
obtain, based on the signal, a plurality of code blocks and a plurality of code block indexes for the plurality of code blocks, wherein the signal includes the plurality of code blocks and each of the plurality of code blocks is attached with information associated with a corresponding code block index among the plurality of code block indexes;
obtain a plurality of bits including a transport block (TB) and a cyclic redundancy check (CRC) for the TB based on the plurality of code blocks, wherein an order of the plurality of code blocks is identified by the plurality of code block indexes; and
determine whether the TB is successfully received based on the CRC.
18. The reception node of claim 17 , wherein the plurality of code blocks are obtained where each of a plurality of indications respectively indicating the plurality of code block indexes is attached to a corresponding code block among the plurality of code blocks,
wherein the information associated with the corresponding code block indexes is the indication of the corresponding code block index, and
wherein:
each of the plurality of indications is attached on a head part of the corresponding code block and a CRC for the corresponding code block is attached on a last part of the corresponding code block; or
each of the plurality of indications is attached on a last part of the corresponding code block among the plurality of code blocks and a head part of the CRC for the corresponding code block.
19. The reception node of claim 17 , wherein the plurality of code blocks are obtained where each of the plurality of code block is attached to a CRC for a corresponding code block to which an XOR operation is applied between a corresponding code block index and at least one bit of the CRC for the corresponding code block, and
wherein the information associated with the corresponding code block indexes is the CRC to which the XOR operation is applied.
20. The reception node of claim 17 , wherein:
the plurality of code block indexes have the same predetermined bit length, or
the plurality of code block indexes are corresponded to non-negative consecutive integers, consecutive natural numbers, or predetermined sequences, and
wherein:
information on a type of transmission of the signal is received from the transmission node, and
the type is associated with the signal being based on the plurality of code block indexes.