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1. WO2019223589 - METHOD AND APPARATUS FOR SPATIAL REUSE BASED ON MULTI-ACCESS POINT (AP) COORDINATION

Publication Number WO/2019/223589
Publication Date 28.11.2019
International Application No. PCT/CN2019/087101
International Filing Date 15.05.2019
IPC
H04W 84/12 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
84Network topologies
02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN  or WLL
10Small scale networks; Flat hierarchical networks
12WLAN
CPC
H04L 5/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
H04L 5/0032
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0032Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
H04L 5/0053
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0053Allocation of signaling, i.e. of overhead other than pilot signals
H04W 52/143
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
06TPC algorithms
14Separate analysis of uplink or downlink
143Downlink power control
H04W 72/0413
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
04Wireless resource allocation
0406involving control information exchange between nodes
0413in uplink direction of a wireless link, i.e. towards network
H04W 72/044
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
04Wireless resource allocation
044where an allocation plan is defined based on the type of the allocated resource
Applicants
  • 华为技术有限公司 HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN]
Inventors
  • 郭宇宸 GUO, Yuchen
Priority Data
201810501886.623.05.2018CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD AND APPARATUS FOR SPATIAL REUSE BASED ON MULTI-ACCESS POINT (AP) COORDINATION
(FR) PROCÉDÉ ET APPAREIL DE RÉUTILISATION SPATIALE BASÉS SUR UNE COORDINATION DE POINTS D'ACCÈS (AP) MULTIPLES
(ZH) 基于多接入点AP协作的空间复用的方法和装置
Abstract
(EN) The present application provides a method, apparatus and system for spatial reuse based on multi-AP coordination. The method comprises: a first AP sends a radio frame comprising identification information to a second AP, the identification information being used for instructing the second AP to perform spatial reuse during uplink data transmission of at least one first station associated with the first AP; the second AP sends a downlink frame to at least one second station according to the identification information. By means of the coordination of APs, the first AP can configure a certain spatial reuse transmission opportunity to specific other APs for spatial reuse transmission, so as to take full advantage of the transmission time in the spatial reuse transmission opportunity, and avoid occurrence of conflict, thereby improving the transmission efficiency.
(FR) La présente invention concerne un procédé, un appareil et un système de réutilisation spatiale basés sur une coordination d'AP multiples. Le procédé comporte les étapes suivantes: un premier AP envoie une trame radio comportant des informations d'identification à un second AP, les informations d'identification étant utilisées pour donner comme consigne au second AP d'effectuer une réutilisation spatiale pendant une transmission de données de liaison montante d'au moins une première station associée au premier AP; le second AP envoie une trame de liaison descendante à au moins une seconde station d'après les informations d'identification. Au moyen de la coordination d'AP, le premier AP peut configurer une certaine opportunité de transmission de réutilisation spatiale vers d'autres AP spécifiques de transmission de réutilisation spatiale, de façon à tirer pleinement parti du temps de transmission dans l'opportunité de transmission de réutilisation spatiale, et éviter l'occurrence d'un conflit, améliorant ainsi le rendement de transmission.
(ZH) 本申请提供一种基于多接入点AP协作的空间复用方法,装置和系统,该方法通过第一接入点AP将包括标识信息的无线帧发送给第二接入点AP,此标识信息用于指示第二接入点AP在第一接入点关联的至少一个第一站点进行上行数据传输期间内进行空间复用,根据标识信息,第二接入点向至少一个第二站点发送下行帧。通过接入点AP之间的协作,第一AP可以将某个空间复用传输机会配置给特定的其他AP进行空间复用传输,从而充分利用空间复用传输机会中的传输时间,同时避免冲突的发生,提升了传输效率。
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