Cooperative diversity transmission method of radio base station and cellular communication base station
A technology of broadcast base station and cellular communication, applied in the field of communication, can solve the problems such as the inability to further effectively improve the frequency spectrum efficiency of broadcast signal broadcast and communication fusion network in edge areas, and affect the user experience of broadcast services, so as to improve the network capacity and coverage effect. Effect
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Embodiment 1
[0035] This embodiment provides a specific implementation method of a cooperative diversity transmission method between a broadcast base station and a cellular communication base station, and its process is as follows figure 1 shown, including the following steps:
[0036] S1, the broadcasting base station broadcasts the sending signal [X 1 x 2 x3 x 4 ...], the user and each communication base station (communication base stations in the present invention all refer to cellular communication base stations) receive the transmission signal of the broadcast base station; the broadcast base station can be wired or wireless, or even laid between the broadcast base station and the cellular network communication base station The optical fiber sends the signal to each cellular communication base station.
[0037] S2. At the edge of the broadcast area, due to the influence of various unfavorable factors such as shadow fading, frequency selective fading, Rayleigh fading, and Doppler...
Embodiment 2
[0048] This embodiment provides a cooperative diversity transmission method between a broadcast base station and a cellular communication base station. The application scenarios of this method are as follows: figure 2 As shown, the broadcast base station and the communication base station use space-frequency coding to perform cooperative diversity transmission.
[0049] The process of cooperative diversity transmission between a broadcasting base station and a single communication base station using space-frequency coding is as follows: the transmitted data symbol vector X is coded into a vector [X 1 x 2 x 3 x 4 …]and where X 1 and x 2 correspond to subcarrier signals at corresponding positions in the frequency domain, and the symbol * represents the complex conjugate of the signal. At this time, the vector sent by the broadcast base station is: [X 1 x 2 x 3 x 4 …], the data sent by the communication base station is: In the frequency domain [X 1 x 2 x ...
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