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1. WO2019223717 - BEAM RECOVERY METHOD AND DEVICE

Publication Number WO/2019/223717
Publication Date 28.11.2019
International Application No. PCT/CN2019/087953
International Filing Date 22.05.2019
IPC
H04W 72/04 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. selection or allocation of wireless resources or wireless traffic scheduling
04Wireless resource allocation
CPC
H04B 7/0695
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0686Hybrid systems, i.e. switching and simultaneous transmission
0695using beam selection
H04W 72/04
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
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 72/042
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
042in downlink direction of a wireless link, i.e. towards terminal
H04W 72/046
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
046the resource being in the space domain, e.g. beams
H04W 74/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
74Wireless channel access, e.g. scheduled or random access
08Non-scheduled ; or contention based; access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
Applicants
  • 中兴通讯股份有限公司 ZTE CORPORATION [CN]/[CN]
Inventors
  • 陈艺戬 CHEN, Yijian
  • 高波 GAO, Bo
  • 鲁照华 LU, Zhaohua
  • 蒋创新 JIANG, Chuangxin
Agents
  • 隆天知识产权代理有限公司 LUNG TIN INTELLECTUAL PROPERTY AGENT LTD.
Priority Data
201810503841.223.05.2018CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) BEAM RECOVERY METHOD AND DEVICE
(FR) PROCÉDÉ ET DISPOSITIF DE RÉCUPÉRATION DE FAISCEAU
(ZH) 一种波束恢复方法和装置
Abstract
(EN) Disclosed in the present application are a beam recovery method and device, the method comprising: after beam failure occurs, performing beam selection to select a new beam; determining PRACH resources corresponding to the selected new beam, and sending indication information on the PRACH resources; after sending the indication information, receiving control information sent by a base station. By means of the technical solution of the present application, the problems in the related technology wherein resources must be reserved according to the worst case scenario and may not be occupied at any moment are resolved; an effective means for beam recovery that supports a contention mode well is provided, which may resolve the phenomenon of blockage in a high frequency and reduce situations of link failure. (FIG. 1)
(FR) La présente invention concerne un procédé et un dispositif de récupération de faisceau, le procédé consistant : à réaliser, après l'occurrence d'une défaillance de faisceau, une sélection de faisceau pour sélectionner un nouveau faisceau ; à déterminer des ressources de PRACH correspondant au nouveau faisceau sélectionné, et à envoyer des informations d'indication sur les ressources de PRACH ; après l'envoi des informations d'indication, à recevoir des informations de commande envoyées par une station de base. Au moyen de la solution technique de la présente invention, les problèmes dans la technologie associée dans laquelle des ressources doivent être réservées selon le scénario le plus défavorable et peuvent ne pas être occupées à tout moment sont résolus ; un moyen efficace de récupération de faisceau qui prend correctement en charge un mode de contention est proposé, ce qui peut résoudre le phénomène de blocage dans une haute fréquence et réduire les situations de défaillance de liaison. (FIG. 1)
(ZH) 本申请公开了一种波束恢复方法和装置,该方法包括:在发生波束失效后进行波束选择,选出新波束;确定选择出的新波束对应的PRACH资源,并在所述PRACH资源上发送指示信息;在发送指示信息之后,接收基站发送的控制信息。通过本申请的技术方案,改善了相关技术中资源要按照最坏的情况来进行预留,且任何时刻都不能被占用的问题,提供了一种有效的方式来很好的支持竞争的方式的波束恢复,能够改善高频中的阻塞现象并减少链路失效的情况。 (图1)
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