Method and device for coding uplink control information
A control information and line control technology, applied in the field of communication, can solve the problems of poor uplink control information transmission performance, low downlink transmission efficiency, and determining coding matrix.
Active Publication Date: 2013-07-24
HUAWEI TECH CO LTD
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Problems solved by technology
[0006] For the method of encoding uplink control information using RM codes provided by the above prior art, the encoding matrix LTE RM(20, A) used in LTE and LTE-Advanced systems does not have Change to reasonably determine the column vector of the coding matrix, that is, no matter how large the number of bits A of the control information is, the same coding matrix is always used, which leads to poor transmission performance of uplink control information and low efficiency of corresponding downlink transmission
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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
[0030] Please refer to the attached figure 1 , is a schematic flow chart of a method for encoding uplink control information provided by an embodiment of the present invention, mainly including steps S101 and S102, and is described in detail as follows:
[0031] S101. Shift the column vectors of the predefined encoding matrix M to generate a new encoding matrix M′.
[0032] In the embodiment of the present invention, the predefined coding matrix M is a coding matrix that is predefined according to speci...
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The embodiments of the invention provide a method and device for coding uplink control information. The method and the device are used for optimizing the transmission performance of the uplink control information. The method comprises the steps of: shifting column vectors of a predefined coding matrix M so as to create a new encoding matrix M'; and coding the uplink control information by using the new encoding matrix M'. The coding matrix which is adopted to code the uplink control information is not the fixed predefined coding matrix but the new encoding matrix which is created through shifting the column vectors of the predefined coding matrix. Compared with the method in the prior art that the same coding matrix is adopted to code the uplink control information regardless of the number of bits of the control information, the method provided by the embodiments of the invention has the advantages that corresponding coding matrixes can be determined according to the uplink control information, so that the transmission performance of the uplink control information can be optimized, and then, the efficiency of downlink transmission is increased.
Description
technical field [0001] The present invention relates to the communication field, in particular to a method and device for encoding uplink control information. Background technique [0002] Under the guidance of information theory, the theoretical research of channel coding has developed rapidly, and people have developed many coding techniques with excellent performance, including block codes, convolutional codes and concatenated codes, etc. For example, Turbo code is a concatenated code , while RM codes and Polar codes belong to block codes, and Polar codes, as a new coding technique close to the channel capacity, have received extensive attention and research. The basic coding principle of the Polar code is to use Bhattacharyya parameters or symmetric capacity (symmetric capacity) to determine the row vector (or column vector) of the coding matrix according to specific conditions. In addition, the bit error rate can also be used to determine the corresponding coding matri...
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CPCH04L1/0041H04L1/0072H04W72/21H04L25/0242
Inventor 陈军李斌沈晖
Owner HUAWEI TECH CO LTD