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Data transmission method, base station and user equipment

A data transmission method and user equipment technology, applied in the field of base stations, user equipment, and data transmission methods, can solve problems such as waste of spectrum resources and inability to obtain E-PDCCH, and achieve high utilization ratio

Inactive Publication Date: 2013-09-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the narrowband UE cannot receive the PCFICH transmitted in the full frequency band, it is impossible to obtain which OFDM symbol the E-PDCCH starts from in the time domain
For narrowband UEs, if the E-PDCCH is sent from the 4th OFDM symbol fixedly, it will also cause waste of spectrum resources

Method used

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  • Data transmission method, base station and user equipment
  • Data transmission method, base station and user equipment
  • Data transmission method, base station and user equipment

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but 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 creative efforts fall within the protection scope of the present invention.

[0029] figure 1 is a schematic flowchart of a data transmission method 100 according to an embodiment of the present invention. Such as figure 1 As shown, method 100 includes:

[0030] 110: Obtain the number N of OFDM symbols occupied by the PDCCH;

[0031] 120: Send control signaling to the UE, where the control signaling includes the N;

[0032] 130: According to the N, map the E-PDCCH and / or data channel on the resource position of the PDSCH, an...

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Abstract

The embodiment of the invention provides a data transmission method which comprises the following steps: obtaining a symbolic number N of orthogonal frequency division multiplexing OFDM occupied by a physical downlink control channel domain; sending a control signaling to the user equipment UE, wherein the control signaling comprises N; and according to the N, mapping an expanded control channel and / or a data channel in a resource position of a physical downlink shared channel PDSCH and sending control information and / or data on the expanded control channel and / or data channel. According to the embodiment of the invention, the UE can obtain the symbolic number N of OFDM occupied by a conventional control channel domain and expands a time frequency domain resource mapping mode of the control channel in the data channel, so that the utilization ratio of the time frequency resources is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of wireless communication, and more specifically, relate to a data transmission method, a base station, and user equipment. Background technique [0002] In the Long Term Evolution (LTE for short) system of the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP for short), an ordinary user equipment (User Equipment, UE for short) can support LTE full-band transmission. After the normal UE is turned on, it first monitors the synchronization signal (Synchronization Signal, SS) on the 6 central physical resource blocks (Physical Resource Block, PRB) of the entire frequency band, and then reads the physical downlink broadcast channel (Physical Resource Block, SS) on the 6 central PRBs. Broadcast Channel, referred to as PBCH), obtains configuration information such as bandwidth and Physical Hybrid ARQ Indicator Channel (PHICH) from PBCH, and monitors the Physical Downlink Con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L1/00
CPCH04L5/0044H04L5/0048H04L5/0053H04L5/0094
Inventor 夏金环
Owner HUAWEI TECH CO LTD
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