Wireless Control Signaling Decoding With Fewer Dummy Bits
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Solution Overview
Problem
In wireless communication systems, especially in digital broadcasting, control information encoding is inefficient due to a large number of dummy bits, which dissipate communication resources and do not effectively utilize available resources.
Innovation Solution
The method involves generating coded blocks by Low Density Parity Check (LDPC)-encoding control information, distinguishing between fixed and variable bit types, and using a controller to decode signaling information with a fixed number of bits to efficiently transmit and receive control information, reducing the number of dummy bits and optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If control information is encoded using conventional methods in wireless broadcasting systems, then the transmission can be performed with standard encoding procedures, but a large number of dummy bits are introduced which dissipate communication resources
Solution Approach 1:
The patent extracts and removes dummy bits from the control information encoding process. By identifying and eliminating the unnecessary dummy bits that were traditionally included in the encoding of signaling information, the system achieves more efficient use of communication resources without compromising the integrity or decodability of the control information.
Solution Approach 2:
The patent changes the encoding parameters by introducing a new parameter 'N' that determines the number of information bits, and相应ly adjusts the coding rate and block structure. This parameter change allows the system to adapt the encoding to the actual information length without requiring fixed dummy bits, thereby improving resource efficiency.
2Productivity
If control information with variable bit lengths is encoded using fixed-length encoding schemes, then the encoding structure remains simple and uniform, but the communication resources are not efficiently utilized due to the presence of dummy bits
Solution Approach 1:
The patent introduces dynamic encoding where the block length and coding rate are determined by the actual information length. The system dynamically selects encoding parameters based on the variable bit length of control information, allowing efficient resource utilization while maintaining manageable complexity through standardized dynamic selection.
Solution Approach 2:
The patent employs variable encoding parameters including information bit length N, coding rate R, and block length, which are adjusted according to the actual control information length. This parameter adaptation enables efficient resource usage for variable-length control information without requiring complex custom encoding schemes for each case.
3Adaptability or versatility
If all control information is encoded in a single coded block, then the encoding process is simple, but the system cannot efficiently handle different types of signaling information with different bit requirements
Solution Approach 1:
The patent segments control information into different types (first type and second type signaling information) and applies different encoding approaches. The first type is encoded with fixed-length blocks while the second type uses variable-length blocks, allowing the system to adapt to different information requirements while maintaining relatively simple encoding processes for each segment.
Solution Approach 2:
The patent applies different encoding qualities and methods to different parts of the control information. First type signaling information receives fixed-length encoding with specific parameters, while second type signaling information receives variable-length encoding, optimizing the encoding approach for each local requirement rather than applying a uniform method to all control information.
Data Source
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AI summary
A method and apparatus for transmitting/receiving control information in a wireless communication system are provided, in which signaling information having a fixed number of bits is received in a coded block of a received frame, and signaling information having a variable number of bits in at least one coded block of the received frame is decoded using the signaling information having the fixed number of bits.