Hybrid service transmission method and device based on multi-cell cooperation and storage medium
A multi-cell cooperation and hybrid service technology, applied in transmission systems, digital transmission systems, advanced technologies, etc., can solve problems such as increasing the bit error rate of information received by users, large data volume, and inability to ensure smooth data transmission, and improve reliability. performance, reducing the amount of information, and reducing the resource consumption of the backhaul link
Active Publication Date: 2021-08-24
ACADEMY OF BROADCASTING SCI STATE ADMINISTATION OF PRESS PUBLICATION RADIO FILM & TELEVISION
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Problems solved by technology
This method leads to a huge amount of data that needs to be carried on the backhaul link. When the backhaul capacity is limited, the smooth transmission of data cannot be guaranteed, which affects the reliability of data transmission.
Moreover, the multicast information and unicast information in the existing solution are sent by all the base stations in the cooperation unit, and the user will receive the interference information sent to him by the base station of the cell, resulting in increased signal interference and increased error in receiving information by the user. code rate
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[0048] In order to further explain the technical means and functions adopted by the present invention to achieve the intended purpose, the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.
[0049] First, some terms involved in the embodiments of the present invention are described to facilitate the understanding of those skilled in the art.
[0050] 5G (the Fifth Generation): the fifth generation mobile communication system;
[0051] CoMP (Coordinated Multi-Point): multi-point collaborative technology;
[0052] JP (Joint Processing): joint processing;
[0053] CS / CB (Coordinated Scheduling / Beamforming): Coordinated Scheduling / Beamforming;
[0054] SIC (successive interference cancellation): continuous interference cancellation;
[0055] RSMA (Rate-Splitting Multiple Access): Rate-Splitting Multiple Access;
[0056] SDMA (Space-Division Multiple Access): Space Division Multiple Access;
[0057] NOM...
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The invention provides a hybrid service transmission method and device based on multi-cell cooperation and a storage medium, which are used for improving and reducing the data volume borne by a backhaul link and improving the data transmission reliability. The method comprises the following steps: for a current time-frequency resource lattice, determining CSIT quality of a channel and an equivalent channel between a base station and each receiving end according to CSI fed back by each receiving end; determining superposition information to be transmitted on the current time-frequency resource lattice according to the determined CSIT quality; for each piece of to-be-transmitted superposition information, determining transmission power allocated to the to-be-transmitted superposition information; carrying out modulation coding and pre-coding on broadcast information and multicast information in the to-be-transmitted superposed information, and carrying out modulation coding and pre-coding on unicast information by a target base station; and transmitting the modulation coding and pre-coding results of the broadcast information and the multicast information to a target base station, and performing power superposition transmission by the target base station according to the transmission power allocated for each piece of superposition information.
Description
technical field [0001] The present invention relates to the technical field of wireless communication, and in particular to a mixed service transmission method and device storage medium based on multi-cell cooperation. Background technique [0002] With the increasing number of mobile terminal users and the rapid development of network communication technology, each user will have the same data stream requirements, such as interactive network TV, audio or video multicast data stream, live sports events, etc., broadcast and multicast services Technology will play an important role in the 5G system and has great development prospects. Utilizing the information transmission characteristics of the wireless channel, the unicast, multicast and broadcast signals required by each user can be transmitted simultaneously, making full use of the communication efficiency of the downlink transmission link and saving spectrum resources. [0003] In the future wireless communication networ...
Claims
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IPC IPC(8): H04L1/06H04W72/00H04W72/04
CPCH04L1/0693H04W72/0473H04W72/30Y02D30/70
Inventor 李继龙张翀张帆龚媛嘉李立华柴可佳
Owner ACADEMY OF BROADCASTING SCI STATE ADMINISTATION OF PRESS PUBLICATION RADIO FILM & TELEVISION