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A data transmission method and device

A data transmission method and data technology, applied in the field of communication, can solve problems such as inability to effectively utilize system resources and multi-system resources, and achieve the effect of improving resource utilization

Active Publication Date: 2016-06-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

GP resources occupy more system resources, and for a cell with a larger radius, a larger GP needs to be configured, and for a user equipment (UE, UserEquipment) that is close to a base station, due to its small RTT, the receiving base station After downlinking data, it needs to wait for a period of time before sending uplink data, so system resources cannot be effectively used

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

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0050] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] The various technologies described herein can be used in various wireless communication systems, such as current 2G, 3G communication systems and next-generation communication systems, such as Global System for Mobile Communications (GSM, Global System for Mobile communications), Code Division Multiple Access (CDMA, CodeDivisionMultipleAccess) system, Time Division Multiple Access (TDMA, TimeDivisionMultipleAccess) system, Wideband ...

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Abstract

Embodiments of the present invention provides a data transmission method and apparatus, involving the field of communication technology, to be able to effectively improve the resource utilization of the system and invented. The data transmission method comprises: the user device receives the downstream data transmitted by the base station through the downstream resources of the special subframe; The user device determines its corresponding protection time level, the protection time level corresponds to the round-trip delay of the user device, the protection time level indicates the orthogonal frequency division multiplexing of the protection time corresponding to the user device in the special subframe OFDM symbol length; The user device according to its corresponding protection time level, to determine the special subframe protection time resource in the location of the user device corresponding to the upstream resource; The user device transmits upstream data to the base station through the protection time resource of the special subframe corresponding to the upstream resource of the user device. Embodiments of the present invention may be used in wireless communication systems.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a data transmission method and device. Background technique [0002] In the Long Term Evolution (LongTermEvolution) / Enhanced Long Term Evolution LTE-A (LTE Advanced) Time Division Duplexing TDD (TimeDivisionDuplexing) wireless communication system, each radio frame contains 10 subframes. According to the service usage of the subframe, the subframe It can be a downlink subframe, an uplink subframe, or a special subframe. Wherein, the special subframe is composed of three special time slots, which are downlink pilot time slot DwPTS (DownlinkPilotTimeSlot), guard time GP (Guardperiod) and uplink pilot time slot UpPTS (UplinkPilotTimeSlot). [0003] In the frame structure of the LTE TDD system, the length of the DwPTS can be configured as 3 to 12 Orthogonal Frequency Division Multiplexing (OFDM) symbols for downlink transmission. The length of UpPTS can be configured...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26
CPCH04L5/0007H04L5/0037H04L5/0048H04L5/0085H04L5/0094H04L27/2605H04L5/0069H04W56/00H04L5/0035H04L5/0053H04W72/21H04W72/23H04L43/0864H04W72/1273
Inventor 王力甄斌赵盟
Owner HUAWEI TECH CO LTD
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