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Uplink transmission method, terminal, and network side device

專利號(hào)
US11147047B2
公開日期
2021-10-12
申請(qǐng)人
HUAWEI TECHNOLOGIES CO., LTD.（CN Guangdong）
發(fā)明人
Yiqun Wu; Xiuqiang Xu; Yan Chen
IPC分類
H04W72/04; H04L5/00; H04L27/26; H04W72/12
技術(shù)領(lǐng)域
uplink,terminal,resource,ofdm,signal,frequency,nsymbul,subframe,time,in
地域： Guangdong

摘要

This application provides an uplink transmission method, a terminal, and a network side device. The method includes: storing, by a terminal, an uplink transmission time-frequency resource allocated by a network side device; when the terminal needs to send an uplink signal, determining the to-be-transmitted uplink signal based on a quantity of orthogonal frequency division multiplexing (OFDM) symbols in the uplink transmission time-frequency resource; and sending, by the terminal, the uplink signal to the network side device. During implementation of the uplink transmission method provided in this application, grant free transmission solutions are provided for different uplink transmission time-frequency resources, to effectively improve communication performance.

說(shuō)明書

In Embodiment 2, the terminal determines, based the subframe format, the uplink transmission time-frequency resource that can be used by the terminal to perform uplink transmission, and therefore the network side device can perform targeted detection on a specific time-frequency resource, and does not need to receive, through blind detection or the like, an uplink signal sent by the terminal, thereby greatly improving effectiveness of grant free transmission.

Embodiment 3 of the grant free transmission method provided is shown in FIG. 10. The method provided in Embodiment 3 is a combination of that in Embodiment 1 and that in Embodiment 2. The terminal may generate a corresponding uplink signal based on a subframe format, or may determine, based on a subframe format, an uplink transmission time-frequency resource that can be used by the terminal to perform uplink transmission, thereby further improving flexibility and effectiveness of uplink grant free transmission. For details, refer to the steps in FIG. 9. A detailed implementation process of the steps is described in detail in text description corresponding to FIG. 7 and FIG. 8. Details are not described herein again.

權(quán)利要求

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