Receiving/sending method of short answering / no answering, and coding/decoding apparatus thereof

Abstract

The invention implementation example provides an encoding method of the short answering / denial answering PAN. The method includes that based on the time or the single temporary block flow TBF operation, the structure of the PAN based on the starting block sequence number SSN includes an information field and an supplement field which has the same bit number as the bit number included in the temporary block flow indication TFI; the information field and the supplement field are set; the field which has the same bit number as the supplement field in the CRC cycle redundancy code corresponding to the PAN is selected to process XOR operation with the supplement field; the result of the XOR operation is combined with the other fields which are not processed with the XOR operation; the combination and the information field in the PAN are used as the encoding result of the PAN. The invention also discloses a PAN encoding device, a PAN decoding method and a device. The encoding method of the short answering / denial answering PAN is adopted to simplify and unify the PAN encoding and decoding modes.

Description

technical field [0001] The present invention relates to codec technology, and in particular to a method for receiving and sending short acknowledgment / negative acknowledgment (Piggybacked Acknowledged / Non Acknowledged, PAN) and a codec device. Background technique [0002] In Global System for Mobile Communication (GSM), General Packet Radio Service (GPRS), Enhanced GPRS (Enhanced GPRS, EGPRS) systems, a Time Division Multiple Access (TDMA) A frame is composed of 8 time slots. At present, the smallest scheduling unit of data transmission in the physical layer is a wireless block (Block), which can be divided into two types. Wherein the first type, each wireless block is made up of 4 time slots, and is respectively located in 4 continuous TDMA frames, and the transmission time interval of each wireless block is 20 milliseconds, and this wireless block is called basic transmission time ( Basic TransmitTime Interval, BTTI) wireless block; the second type, keep the size of each...

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Problems solved by technology

[0015] It can be seen that in the prior art, SSN-based PAN has two bit lengths. For example, under the commonly used multi-TBF operation, the SSN-based PAN is 25 bits, and under the single-TBF operation, the SSN-based PAN is 20 bits. The time-based PAN length is also It is 20 bits, which is different from the length of PAN based on SSN under multi-TBF operation. In this way, when channel coding, it is necessary to design encoding methods for PANs of these two lengths, and the decoding end needs to support the decoding of PANs of two lengths. , leading to greater complexity

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