Method and apparatus for generating spreading sequence codebooks
A spread sequence and codebook technology, applied in multiplex communication, orthogonal multiplex system, multiple use of transmission path, etc., can solve non-orthogonal scheduling-free access configuration low spread sequence codebook, etc. question
Active Publication Date: 2020-08-14
ZTE CORP
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Problems solved by technology
There is no satisfactory solution in existing literature or prior art to configure spreading sequence codebooks with low cross-correlation for non-orthogonal scheduling-free access
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[0020] Various exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, so that those of ordinary skill in the art can make and use the present invention. It is obvious to those of ordinary skill in the art that after reading the present disclosure, various changes or modifications can be made to the examples described herein without departing from the scope of the present invention. Therefore, the present invention is not limited to the exemplary embodiments and applications described or illustrated herein. In addition, the specific order or hierarchy of steps in the methods disclosed herein are merely exemplary methods. Based on design preferences, the specific order or hierarchy of steps of the disclosed method or process may be rearranged while remaining within the scope of the present invention. Therefore, those of ordinary skill in the art will understand that the methods and techniques disclosed herein present v...
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A method and apparatus for generating and utilizing spreading sequence codebooks for a symbol-level sequence spreading is disclosed. In one embodiment, a method performed by a wireless communication device, comprises receiving a first number from a wireless communication node; selecting a first spreading sequence codebook from at least one spreading sequence codebook; selecting a first spreading sequence from the first spreading sequence codebook according to the first number; and spreading data symbols according to the first spreading sequence, wherein the at least one spreading sequence codebook each comprises a plurality of spreading sequences configured based on one entry of a first sequence set after cyclic shifting operation, wherein the first sequence set before cyclic shifting operation is configured based on a second sequence set, the second sequence set comprises at least one of the following, a first entry comprising {1, 2, 4}, a second entry comprising {0, 1, 3, 9}, a thirdentry comprising {0 2, 6, 7, 8, 10}, a fourth entry comprising {1, 5, 11, 24, 25, 27}, a fifth entry comprising {3, 6, 7, 9, 11, 12, 13, 14}, a sixth entry comprising {0, 1,, 9, 23, 44, 47, 49} and aseventh entry comprising {1, 8, 9, 11, 25, 37, 69, 88, 94, 99, 103, 121}.
Description
Technical field [0001] The present disclosure relates generally to wireless communication, and more specifically, to a method and apparatus for generating and using a spreading sequence codebook for symbol-level sequence spreading. Background technique [0002] In the past few decades, mobile communications have evolved from pure voice services to high-speed broadband data services. With the further development of new services and applications (such as enhanced mobile broadband (eMBB), large-scale machine type communication (mMTC), ultra-reliable low-latency communication (URLLC), etc.), high-performance data transmission on mobile networks The demand will continue to grow exponentially. Based on the specific requirements in these emerging services, wireless communication systems should meet various requirements such as throughput, delay, data rate, capacity, reliability, link density, cost, energy consumption, complexity, and coverage. [0003] Due to limited equipment capacity,...
Claims
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IPC IPC(8): H04B7/0456
CPCH04J11/003H04L5/0091H04L5/0016H04L5/0044H04B7/0482H04L27/2607H04W72/0446H04W72/0453
Inventor 王沙袁弋非田力袁志锋曹伟
Owner ZTE CORP