Multi-user device access method and apparatus
A technology for user equipment and device access, applied in the field of communications, can solve problems such as reducing the signal transmission rate and restricting applications, and achieve the effect of improving the signal transmission rate and resource utilization.
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Embodiment 1
[0026] figure 1 It is a flow chart of a multi-user equipment access method provided in Embodiment 1 of the present invention. This embodiment is applicable to the situation where multi-user equipment performs uplink data communication, and the method can be accessed by the multi-user equipment provided in the embodiment of the present invention. device, which can be implemented in software or hardware, such as figure 1 shown, including:
[0027] S101. Perform different spread spectrum processing operations on the data of each user equipment, so that the data of each user equipment after the spread spectrum processing are independent of each other.
[0028] Specifically, before performing different spread spectrum processing operations on the data of each user equipment, first perform at least one of the following preprocessing on the data of each user equipment: channel coding processing, scrambling processing, and modulation processing, and then Different spread spectrum pr...
Embodiment 2
[0044] figure 2 It is a flow chart of a multi-user equipment access method provided by Embodiment 2 of the present invention. On the basis of the above-mentioned embodiments, this embodiment performs different spread spectrum processing operations on the data of each user equipment, and is optimized as Different spreading sequences of preset lengths are used to copy the data of each user equipment respectively, such as figure 2 shown, including:
[0045] S201. Process the data of each user equipment separately by using different spreading sequences of preset lengths, and the processed data of each user equipment are independent of each other.
[0046] Wherein, the spreading sequence is a pseudo-random sequence or an orthogonal sequence.
[0047] For example, a short-length spreading code set can be pre-defined as a spreading sequence, such as the 4th-order Hadamard sequence {c 1 , c 2 , c3 , c 4}, where c 1 =(1,1,1,1), c 2 =(1,-1,1,-1), c 3 =(1,1,-1,-1),c 4 =(1,-1,-...
Embodiment 3
[0051] image 3 It is a flow chart of a multi-user equipment access method provided by Embodiment 3 of the present invention. On the basis of the above-mentioned embodiments, this embodiment performs different spread spectrum processing operations on the data of each user equipment, and is optimized as Convolute the data of each user equipment with different spreading sequences, such as image 3 shown, including:
[0052] S301. Perform convolution processing on the data of each user equipment with different spreading sequences, so that the data of each user equipment after convolution processing are independent of each other.
[0053] Wherein, the spreading sequence may be a complex Gaussian sequence. Specifically, for the data of each user equipment, a complex Gaussian sequence with a length of L is randomly generated independently, and a sequence with better performance can also be constructed or searched by preset criteria. Suppose the data of the kth user equipment is s...
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