Apparatus and method for use in effecting automatic repeat...

H - Electricity – 04 – W

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H04W 28/04 (2009.01) H04W 88/02 (2009.01) H04W 88/08 (2009.01) H04L 1/18 (2006.01)

Patent

CA 2547910

In a wireless multiple access communications system (Fig. 1) the channel resource is managed partitioning the channel resource into an acknowledgment channel and a traffic channel in a fixed manner, each of which carries its respective segments (Fig. 3). A traffic segment (Fig, 2, #202) is the basic resource unit to convey data, and has a prescribed finite time interval and bandwidth. Each traffic segment is associated with an acknowledgment segment in a one-to-one manner (Fig. 3). The acknowledgment segment conveys acknowledgment information of the associated traffic segment (Fig. 5, 502), and both the base station (Fig, 1, #101) and the wireless terminals (Fig. 1, #103-1~Y) use the acknowledgment segment to acknowledge associated traffic segments. The base station and the wireless terminal monitors all the acknowledgment segments associated with the segments it transmitted (Fig, 5, #503) and determines if any segments need to be retransmitted (Fig, 5, #504). The wireless terminal also performs retransmission of its respective segments (Fig. 6).

L'invention concerne un système de communications multiples hertzien (fig. 1) dans lequel la ressource est gérée par division de la ressource de canal dans un canal d'accusé de réception et un canal de trafic d'une façon fixe, dont chacun porte ses segments respectifs (fig. 3). Un segment du trafic (figue, 2, # 202) constitue l'unité de ressource de base de convoyage de données, et possède un intervalle de temps et une largeur de bande finis prescrits. Chaque segment du trafic est associé à un segment d'accusé de réception d'une façon linéaire (fig. 3). Le segment d'accusé de réception donne l'information de réception du segment associé du trafic (fig. 5, 502), et à la fois la station de base (fig. 1, # 101) et les terminaux hertziens (fig. 1, #103-1 Y) utilisent le segment d'accusé de réception afin de reconnaître des segments associés de trafic. La station de base et le terminal hertziens surveillent tous les segments d'accusé de réception associés aux segments qu'ils ont émis (fig. 5, # 503) et déterminent si des segments doivent être réémis (fig., 5, # 504). Le terminal hertzien exécute également la réémission de ses segments respectifs (fig. 6).

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