Per-user unitary rate control

Per-user unitary rate control (PU2RC) is a multi-user <a href="/facts/MIMO/1EXPB7Vl">MIMO</a> (multiple-input and multiple-output) scheme. PU2RC uses both transmission pre-coding and multi-user scheduling. By doing that, the network capacity is further enhanced than the capacity of the single-user MIMO scheme.

<ul><li>Background technologies: A single-user MIMO was initially developed to improve the spectral efficiency of point-to-point wireless transmission link. A multi-user MIMO was developed for cellular systems where the base station simultaneously communicates with multiple users.</li>
<li>Principle: The concept of Per-User Unitary Rate Control (PU2RC) was proposed in US Patent No. 7,324,480, Mobile communication apparatus and method including base station and mobile station having multi-antenna by James S. Kim, Kwang Bok Lee, Kiho Kim and Changsoon Park.</li></ul>
Recently, PU2RC has been adopted in the IEEE 802.16m system description documentation (SDD) and the concept of this scheme was included in 3GPP <a href="/facts/3GPP_Long_Term_Evolution/72QhwXHT">LTE</a> standard.

Per-user unitary rate control open-in-new

Per-user unitary rate control