Method for improving uplink transmission rate between users and base station with cooperative communication
A technology of transmission rate and cooperative communication, which is applied in the field of wireless communication and can solve problems such as mutual interference between users and affecting communication
Active Publication Date: 2016-06-15
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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[0003] However, when full-duplex technology is applied to cellular systems, mutual interference between users becomes a major problem affecting communication
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[0038] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.
[0039] Such as figure 1 As shown, this embodiment describes a method for increasing the uplink transmission rate between a user and a base station by using cooperative communication. Any two user terminals are used as the first user terminal MU1 and the second user terminal MU2, and the first user terminal MU1 and the second user terminal MU2 The two user terminals MU2 perform point-to-point cooperative communication with the base station according to the cooperative communication conditions.
[0040] When the second user terminal MU2 assists the first user terminal MU1 to communicate with the base station, the first user terminal MU1 sends the signal generated by itself to the second user terminal MU2 at the first uplink transmission rate ...
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The invention discloses a method for improving an uplink transmission rate between users and a base station with cooperative communication. By utilizing mutual interference between two users, the uplink transmission rates of the users are maximized; and meanwhile, by adopting the cooperative communication, after the first uplink transmission rate R1 of one user is known, the second uplink transmission rate R2 which can be achieved by the other user and how the two users distribute a power for the cooperative communication can be calculated correspondingly, wherein the second uplink transmission rate R2 is according to the first uplink transmission rate R1 and is determined in a transmission rate feasible domain of a first user side MU1 and a second user side MU2; and the determination manner is as follows: setting multiple demarcation points C on an edge curve of the feasible domain, dividing the feasible domain into multiple subdomains, matching the optimal second uplink transmission rate R2 in the corresponding subdomains according to a value of the first uplink transmission rate R1, and determining the transmission power of the first user end MU1 and the second user end MU2.
Description
technical field [0001] The invention relates to the field of wireless communication, in particular to a cooperative communication method, a method for improving the uplink transmission rate between a user and a base station by using cooperative communication. Background technique [0002] Nowadays, full-duplex wireless communication systems are gaining more and more attention in the industrial and academic fields. Because it can not only significantly improve spectral efficiency, but also solve the problems of hidden nodes and end-to-end delay. [0003] However, when the full-duplex technology is applied to the cellular system, mutual interference between users becomes a major problem affecting communication. Generally, there are two ways to reduce the impact of mutual interference on communication transmission: the first method is dynamic elimination; the second method is to use this interference, such as using point-to-point communication and optimizing energy distributio...
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IPC IPC(8): H04W28/22
CPCH04W28/22
Inventor 黄川张经纬梁青鹏唐友喜
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA