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Uplink transmission control method and apparatus and communication system

專利號
US11134523B2
公開日期
2021-09-28
申請人
FUJITSU LIMITED(JP Kawasaki)
發(fā)明人
Qinyan Jiang; Hua Zhou; Lianhai Wu
IPC分類
H04W74/08; H04L27/26; H04W72/04; H04L5/00; H04W74/00
技術領域
rach,resources,ue,signaling,preambles,uplink,in,control,network,may
地域: Kawasaki

摘要

An uplink transmission control method and apparatus and a communication system. The network device explicitly or implicitly indicates dynamic scheduling information of RACH resources via control signaling. After selecting RACH resources, the user equipment (UE) monitors control signaling corresponding to the RACH resources. According to situations of receiving the control signaling, when the selected RACH resources are available, the UE directly transmits a random access request matched with the RACH resources; and when the selected RACH resources are unavailable, the UE further selects RACH resources according to configuration or indication of a base station, and until an RACH resource is available, the UE transmits a random access request matched with the RACH resource. Hence, normal random access of the UE may be ensured, and interference to other UEs may be reduced.

說明書

FIG. 5B is another schematic diagram of the configuration of a set of static or semi-static RACH resources;

FIG. 6 is a schematic diagram of RACH resource availability indication;

FIG. 7 is another schematic diagram of the RACH resource availability indication;

FIG. 8 is a further schematic diagram of the RACH resource availability indication;

FIG. 9 is a schematic diagram of RACH resource assignment;

FIG. 10 is another schematic diagram of the RACH resource assignment;

FIG. 11 is a further schematic diagram of the RACH resource assignment;

FIG. 12 is a schematic diagram of the uplink transmission control method of Embodiment 2;

FIG. 13 is schematic diagram of an implementation of determining available RACH resources by the UE according to a result of monitoring control signaling in Embodiment 2;

FIG. 14 is schematic diagram of information exchange between the network device and the UE;

FIG. 15 is a schematic diagram of the uplink transmission control apparatus of Embodiment 3;

FIG. 16 is a schematic diagram of the network device of Embodiment 4;

FIG. 17 is a schematic diagram of the uplink transmission control apparatus of Embodiment 5;

權利要求

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