FR2996972A1 - Signalisation pour communications multipoint coordonnees en liaison descendante dans un systeme de communication sans fil - Google Patents
Signalisation pour communications multipoint coordonnees en liaison descendante dans un systeme de communication sans fil Download PDFInfo
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- FR2996972A1 FR2996972A1 FR1361050A FR1361050A FR2996972A1 FR 2996972 A1 FR2996972 A1 FR 2996972A1 FR 1361050 A FR1361050 A FR 1361050A FR 1361050 A FR1361050 A FR 1361050A FR 2996972 A1 FR2996972 A1 FR 2996972A1
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- 238000004891 communication Methods 0.000 title claims abstract description 70
- 230000011664 signaling Effects 0.000 title abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 219
- 230000008569 process Effects 0.000 claims abstract description 206
- 238000013507 mapping Methods 0.000 claims description 64
- 238000003860 storage Methods 0.000 claims description 13
- 230000001960 triggered effect Effects 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims 2
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- 238000012545 processing Methods 0.000 claims 1
- 230000000875 corresponding effect Effects 0.000 description 15
- 230000005540 biological transmission Effects 0.000 description 13
- 239000000969 carrier Substances 0.000 description 11
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Classifications
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Abstract
Description
Claims (15)
- REVENDICATIONS1 - Un ou plusieurs supports de stockage lisibles par machine non transitoires, ayant des instructions stockées sur ceux-ci qui, lorsqu'elles sont executées par un ou plusieurs processeurs, amènent un équipement utilisateur (UE) à : détecter une valeur dans un champ de mappage d'élément de ressource (RE) de canal partagé de liaison descendante physique (PDSCH) évolué (eNB) ; identifier, sur la d'un message reçu d'un noeud B base de la valeur, un ensemble de paramètres de mappage RE PDSCH à partir d'une pluralité d'ensembles de paramètres de mappage RE PDSCH, l'ensemble 15 de paramètres de mappage RE PDSCH comprenant un nombre de ports d'antenne ; et traiter l'ensemble de paramètres de mappage RE PDSCH pour recevoir un PDSCH. 20
- 2 - Le ou les supports de stockage lisibles par machine non transitoires selon la revendication 1, dans lesquels le nombre de ports d'antenne comprend 1, 2 ou 4 ; et/ou dans lequel le champ de mappage RE PDSCH est 25 formé dans un format d'informations de commande de liaison descendante (DCI), et est pour supporter une communication multipoint coordonnée (CoMP) vers l'UE ; et/ou dans lequel l'ensemble de paramètres de mappage RE PDSCH est en outre pour comprendre un décalage de 30 fréquence pour une cellule de desserte, un symbole dè démarrage de PDSH, ou une configuration de sous-trame de réseau monofréquence de multidiffusion-diffusion.
- 3 - Le ou les supports de stockage lisibles par machine non transitoires selon la revendication 1 ou la revendication 2, dans lesquels le message est en outre pour indiquer une cellule de desserte que l'UE utilise pour recevoir le PDSCH ; et/ou dans lesquels la pluralité d'ensembles de paramètres de mappage RE PDSCH ont quatre ensembles de paramètres de mappage RE PDSCH.
- 4 - Appareil devant être employé par un noeud B évolué (eNB), l'appareil comprenant : un module de gestion pour : déterminer quatre ensembles de paramètres de mappage d'élément de ressource (RE) de canal partagé de liaison descendante physique (PDSCH), chaque ensemble de paramètres de mappage RE PDSCH-ayant un nombre de ports d'antenne ; et déterminer une valeur dans un champ de mappage RE PDSCH, la valeur correspondant à un ensemble de 20 paramètres de mappage RE PDSCH des quatre ensembles de paramètres de mappage RE PDSCH ; et un module de communication couplé au module de gestion, le module de communication étant pour transmettre un message comprenant la valeur dans le champ de mappage RE 25 PDSCH à un équipement utilisateur (UE) sur un réseau de communication sans fil.
- 5 - Appareil selon la revendication 4, dans lequel le nombre de ports d'antenne comprend 1, 2 ou 4 ; 30 et/ou dans lequel le champ de mappage RE PDSCH est formé dans un format d'informations de commande de liaisondescendante (DCI), et est pour supporter une communication multipoint coordonnée (CoMP) vers l'UE ; et/ou dans lequel l'ensemble de paramètres de mappage RE PDSCH est en outre pour avoir un décalage de fréquence 5 pour une cellule de desserte, un symbole de démarrage de PDSH, ou une configuration de sous-trame de réseau monofréquence de multidiffusion-diffusion.
- 6 - Appareil selon la revendication 4 ou la 10 revendication 5, dans lequel le message est en outre pour indiquer une cellule de desserte que l'UE utilise pour recevoir le PDSCH ; et/ou dans lequel la logique de communication est en outre pour transmettre les quatre ensembles de paramètres 15 de mappage RE PDSCH à l'UE.
- 7 - Appareil devant être employé par un équipement utilisateur (UE), l'appareil comprenant : un module de communication pour recevoir, d'un 20 noeud B évolué (eNB), un message ayant un format d'informations de commande de liaison descendante (DCI) pour supporter des communications multipoint coordonnées (CoMP), le message comprenant une valeur dans un champ de requête d'informations d'état de canal (CSI) ; et 25 un module de rétroaction couplé à la logique de communication, le module de rétroaction étant pour générer un rétroaction CSI apériodique pour un ou plusieurs processus CSI identifiés par la valeur dans le champ de requête CSI, 30 le ou les processus CSI étant associés à une cellule de desserte, et étant un sous-ensemble d'un nombre total de processus CSI de la cellule de desserte.
- 8 - Appareil selon la revendication 7, dans lequel la valeur est une valeur à deux bits qui identifie le ou les processus CSI, le ou les processus CSI étant associés à la cellule de desserte sur laquelle le message est reçu.
- 9 - Appareil selon la revendication 7, dans lequel la valeur est une valeur à deux bits qui identifie le ou les processus CSI, le ou les processus CSI étant associés à la cellule de desserte qui est différente d'une autre cellule de desserte sur laquelle le message est reçu.
- 10 - Appareil selon la revendication 7, dans lequel le module de communication est en outre pour recevoir un autre message dans le format CSI, l'autre message étant pour avoir un champ de requête CSI avec une valeur à deux bits qui représente le fait qu'aucun rapport CSI apériodique n'est déclenché.
- 11 - Appareil selon l'une quelconque des revendications 7-10, dans lequel le module de rétroaction est en outre pour configurer le ou les processus CSI sur la base d'une table de bits reçue de l'eNB, dans lequel : la table de bits comprend de multiples groupes 25 de bits ; des groupes individuels des multiples groupes correspondent à des cellules de desserte configurées individuelles comprenant la cellule de desserte ; et des bits individuels d'un groupe correspondent à 30 des processus CSI individuels d'une cellule de desserte configurée qui correspond au groupe.
- 12 - Appareil selon l'une quelconque des revendications 7-10, dans lequel la rétroaction CSI apériodique comprend un indicateur de qualité de canal (CQI), un indicateur de matrice de précodage (PMI), un 5 indicateur de type de précodage, ou un indicateur de rang (RI) ; et/ou dans lequel des processus CSI individuels sont associés à une ressource de signal de référence CSI (CSIRS) et une ressource de mesure d'interférence CSI (CSI10 IM) ; et/ou dans lequel l'équipement utilisateur est un dispositif mobile ayant une interface utilisateur d'écran tactile. 15
- 13 - Procédé employé par un noeud B évolué (eNB), comprenant : générer un message ayant un format d'informations de commande de liaison descendante (DCI) supportant des communications multipoint coordonnées 20 (CoMP), le message comprenant une valeur dans un champ de requête d'informations d'état de canal (CSI) ; transmettre le message à un équipement utilisateur (UE) sur un réseau de communication sans fil ; et 25 recevoir une rétroaction CSI apériodique pour un ou plusieurs processus CSI identifiés par la valeur dans le champ de requête CSI ; le ou les processus CSI étant associés à une cellule de desserte, et étant un sous-ensemble d'un nombre 30 total de processus CSI de la cellule de desserte.
- 14 - Procédé selon la revendication 13, dans lequel la valeur est une valeur à deux bits qui identifiele ou les processus CSI, le ou les processus CSI étant associés à la cellule de desserte sur laquelle le message est reçu ; ou dans lequel la valeur est une valeur à deux bits qui identifie le ou les processus CSI, le ou les processus CSI étant associés à la cellule de desserte qui est différente d'une autre cellule de desserte sur laquelle le message est reçu.
- 15 - Procédé selon la revendication 13 ou la revendication 14 : dans lequel le procédé comprend en outre : transmettre un autre message dans le format DCI à l'UE, dans lequel l'autre message a un champ de requête 15 CSI avec une valeur à deux bits qui représente le fait qu'aucun rapport CSI apériodique n'est déclenché ; et/ou dans lequel le procédé comprend en outre : générer une table de bits comprenant de multiples groupes de bits, dans lequel des groupes 20 individuels des multiples groupes correspondent à des cellules de desserte configurées individuelles comprenant la cellule de desserte, et des bits individuels d'un groupe correspondent à des processus CSI individuels d'une cellule de desserte configurée qui correspond au groupe ; et 25 transmettre la table de bits à l'UE ; et/ou dans lequel la rétroaction CSI apériodique comprend un indicateur de qualité de canal (CQI), un indicateur de matrice de précodage (PMI), un indicateur de type de précodage, ou un indicateur de rang (RI). 30
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FR1361050A FR2996972B1 (fr) | 2012-05-11 | 2013-11-12 | Signalisation pour communications multipoint coordonnees en liaison descendante dans un systeme de communication sans fil |
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