A data transmission method and device

A data sending method and a technology of a data sending device, which are applied in the communication field and can solve problems such as occupancy, unicast service data capacity reduction, and time-frequency resources that cannot simultaneously transmit unicast data, etc.

Active Publication Date: 2021-11-30
HUAWEI TECH CO LTD
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Problems solved by technology

[0003] At present, when data of different services are multiplexed on different time-frequency resources for transmission, there will be a problem of service data capacity reduction. For example, no matter whether non-unicast data is transmitted by multiplexing the time-frequency resources of unicast data in a time-division manner, Whether the time-frequency resources for unicast data transmission are multiplexed by frequency division, the time-frequency resources for unicast data transmission will be occupied, and the occupied time-frequency resources for unicast data transmission cannot transmit unicast data at the same time. The avoidance will reduce the time-frequency resources for transmitting unicast data, which will lead to a decrease in the data capacity of unicast services

Method used

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  • A data transmission method and device
  • A data transmission method and device
  • A data transmission method and device

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Embodiment Construction

[0038] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0039] Please refer to figure 1 , which is a schematic diagram of a communication system provided in an embodiment of the present application. Such as figure 1 As shown, the terminal performs wireless access through the access link provided by the high altitude platform station (HAPS), and the HAPS communicates with the ground gateway through a dedicated backhaul link, returns user data, and further accesses the Internet.

[0040]Among them, the terminal is also called user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT), etc., and is a device that provides voice and / or data connectivity to users. , for example, handheld devices with wireless connectivity, vehicle-mounted devices, etc. At present, examples of some terminals are: mobile phone (mobile phone), tablet comput...

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Abstract

A data sending method and device. When the data sending method is applied, the first data is spread to obtain the first data after spreading. Combining the spread-spectrum first data with the second data to obtain combined data, and sending the combined data on time-frequency resources so that the first data and the second data use the same time Frequency resources can be sent at the same time at the same frequency, which can increase the capacity of business data. The method provided in this embodiment can be applied to various communication systems, such as V2X, LTE‑V, V2V, Internet of Vehicles, MTC, IoT, LTE‑M, M2M, Internet of Things, etc.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a data sending method and device. Background technique [0002] The development of communication technology makes the communication system need to support the transmission of multiple types of communication data. In the long term evolution (long term evolution, LTE) system or 5G new radio (new radio, NR) system, it can support a variety of different service types, such as Various types of services such as broadcast service, multicast service, unicast service, machine type communication, etc.; and all adopt the method of orthogonal frequency division multiplexing (OFDM), by multiplexing the data of different services to different time-frequency resources for transmission. For example, non-unicast data such as broadcast service data and multicast service data are usually transmitted by multiplexing time-frequency resources for transmitting unicast data in a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26
CPCH04L27/26
Inventor 魏冬冬汪凡夏斌张朝贤
Owner HUAWEI TECH CO LTD
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