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Data transmission method and device

A data transmission method and data technology, applied in the field of communication, can solve the problems of large uplink resource overhead, blocking PUSCH transmission of dynamic scheduling, increasing the complexity of network equipment, etc., so as to reduce the delay and ensure the effect of the delay.

Active Publication Date: 2022-07-29
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when there are multiple CG resources where PUSCH transmission is not blocked, the network device is not sure which CG resource the terminal device will use to send uplink data. Therefore, the network device needs to transmit uplink data on the multiple CG resources. Detect uplink data from terminal devices, which increases the complexity of network device detection
In addition, due to limited uplink resources, adopting the scheme of configuring multiple CG resources for terminal devices will lead to a large overhead of uplink resources
When the number of terminal devices is large, the dynamically scheduled PUSCH transmission may be blocked due to too few uplink resources that can be dynamically scheduled

Method used

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  • Data transmission method and device

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Embodiment Construction

[0090] figure 1 It is a schematic structural diagram of a mobile communication system to which the embodiments of the present application are applied. like figure 1 As shown, the mobile communication system may include a core network device 110, a radio access network device 120 and at least one terminal device (such as figure 1 terminal device 130 and terminal device 140 in ). The terminal device is connected to the wireless access network device 120 in a wireless manner, and the wireless access network device 120 is connected to the core network device 110 in a wireless or wired manner. The core network device 110 and the radio access network device 120 may be independent and different physical devices, or the functions of the core network device 110 and the logical functions of the radio access network device 120 may be integrated on the same physical device, or It is a physical device that integrates part of the functions of the core network device 110 and part of the f...

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Abstract

Embodiments of the present application provide a data transmission method and device. By configuring a terminal device with a first resource as a primary resource and a second resource as a backup resource, when the first resource as the primary resource encounters the above-mentioned PUSCH transmission obstruction In the scenario, the terminal device can use the second resource as the backup resource to send the uplink data to ensure the delay of the uplink data. Correspondingly, if the first resource does not encounter the above-mentioned scenario where the PUSCH transmission is blocked, the network device may schedule the second resource to be used by other terminal devices. When the uplink data of the URLLC service is transmitted in this way, the delay in transmitting the uplink data of the URLLC service can be reduced without affecting the scheduling flexibility of the network device, the complexity of detection and the overhead of uplink resources.

Description

technical field [0001] The embodiments of the present application relate to communication technologies, and in particular, to a data transmission method and device. Background technique [0002] A concept of a configured grant (CG) is introduced into a new generation wireless (new radio, NR) communication system (abbreviation: NR system). After the network device semi-statically configures the CG resource for the terminal device, when the terminal device has uplink data to send, it can directly use the CG resource to send the physical uplink shared channel (PUSCH) that carries the uplink data, without waiting for the network. The device's dynamic scheduling of PUSCH. At present, since the CG resource is a semi-static resource configured by the network device to the terminal device, it may conflict with the resource configured by the upper layer of the cell where the terminal device is located, or conflict with the dynamically scheduled resource of the network device, result...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/08H04W72/12H04W72/54
CPCH04W72/1268H04W72/54H04W72/569H04L5/0005H04W72/542
Inventor 花梦焦淑蓉
Owner HUAWEI TECH CO LTD
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