A Beam and Power Allocation Method for a Millimeter Wave System
A distribution method, millimeter wave technology, applied in the field of mobile communication, can solve problems affecting system throughput and user experience, poor penetration of obstacles, link interruption, etc.
Active Publication Date: 2020-10-02
BEIJING UNIV OF POSTS & TELECOMM +1
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Problems solved by technology
[0003] 1) Due to the very high carrier frequency in the millimeter wave system, the loss of the transmission signal path is high, the penetration ability of obstacles is poor, and the coverage of the cell is reduced
[0004] 2) When the user terminal (UE) is not connected to a suitable beam, the quality of signal transmission will be degraded, and even the link will be interrupted, affecting system throughput and user experience
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[0071] The technical solutions in the embodiments of the present application are clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.
[0072] This application proposes a method for joint optimization of beam and power allocation in millimeter wave systems to maximize system energy utility. Specifically, in the cell downlink millimeter wave system, it includes a base station (BS) located in the center of the cell and K uniformly distributed users, the users are denoted by k, and the total number of users is K. The base station sends out M beams, and the beams are denoted by m. This application adopts massive multipl...
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The present application provides a beam and power allocation method for a millimeter-wave system, which includes the following steps: establishing a problem model for jointly optimizing beam and power allocation with the goal of maximizing system energy utility; in the case of a given power allocation, For the problem model, the beam allocation method is used to allocate beams to the users, and the beam vector is allocated to the users; in the case of given beam allocation, the power allocation method is used for the problem model to allocate power to the users; the problem model is jointly optimized for beam allocation and power distribution to obtain the maximum energy utility value of the system. This application allocates the beam vector to the appropriate user, the user and the beam are stably matched, the user obtains a better transmission rate, and obtains the maximum system energy utility value, and this application improves the signal transmission in the communication process between the user and the base station Speed, stability and transmission quality, and reduce system energy loss.
Description
technical field [0001] The present application relates to the technical field of mobile communication, and in particular to a beam and power allocation method of a millimeter wave system. Background technique [0002] With the explosive growth of smart terminals and wireless mobile communication services, future wireless mobile communication is facing severe challenges, such as: how to increase system capacity, how to meet the service needs of different users, and how to solve the problem of shortage of spectrum resources, etc. At present, the widely used microwave frequency band below 6GHz cannot provide sufficient spectrum resources. The millimeter wave band of 30-300GHz contains abundant and available spectrum resources, which can alleviate the pressure of scarcity of spectrum resources. However, the use of millimeter wave systems for wireless communication has the following technical problems : [0003] 1) Due to the very high carrier frequency in the millimeter wave sy...
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IPC IPC(8): H04W24/02H04W72/04
CPCH04W24/02H04W72/046H04W72/0473H04W72/53Y02D30/70
Inventor 张天魁陈丹丹张颖慧曾志民
Owner BEIJING UNIV OF POSTS & TELECOMM