Showing papers by "Niklas Wernersson published in 2017"
Patent•
24 Jan 2017TL;DR: In this paper, a method for managing channel state information in a wireless communication system comprises obtaining (S) a base set of state information of a channel between a first node and a second node based on at least one transmission signal, and (S2) a dedicated reference signal, specific for a limited set of nodes comprising the second node, within a channel subspace selected in dependence of the obtained base set.
Abstract: A method for managing channel state information in a wireless communication system comprises obtaining (S1) a base set of channel state information of a channel between a first node and a second node based on at least one transmission signal. A dedicated reference signal, specific for a limited set of nodes comprising the second node is transmitted (S2) within a channel subspace selected in dependence of the obtained base set of channel state information. At least one common channel state information reference signal specific for an intended coverage area of the first node is transmitted (S3). The common channel state information reference signal allows obtaining a fall-back set of channel state information of a channel between the first node and the second node. The fall-back set of channel state information represents coarser granularity, in spatial dimensions, than the base set of channel state information.
2 citations
Patent•
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13 Sep 2017
TL;DR: In this paper, the authors proposed a method to solve the problem of how to improve the quality of a user's experience in the context of online learning, and they showed that it can be achieved by training a teacher to teach a learner.
Abstract: 네트워크 노드(10)가 코드북 내의 어떤 프리코더가 사용되는 것이 제한되는 무선 통신 장치(14)에 시그널링한다. 이에 관해서, 네트워크 노드(10)는 프리코더의 하나 이상의 그룹 각각에 대해서, 그룹 내의 프리코더가 공통으로 갖는 소정의 컴포넌트(예를 들어, 소정의 빔 프리코더)를 제한함으로써, 그룹 내의 프리코더를 조인트해서 제한하는 코드북 서브세트 제한 시그널링을 생성한다. 이 시그널링은, 예를 들어 그룹 내의 프리코더 프리코더의 전송 랭크에 관계없이 조인트해서 제한하는 랭크-애그노스틱 시그널링이다. 그럼에도, 네트워크 노드(10)는 생성된 시그널링을 무선 통신 장치(14)에 송신한다.