Method, device and system for transmitting and receiving data

A data transmission method and data technology, which are applied in the directions of transmission path sub-channel allocation, electrical components, wireless communication, etc., can solve the problems of low frequency efficiency and waste of resources.
CN102256358AActive Publication Date: 2011-11-23DATANG MOBILE COMM EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
DATANG MOBILE COMM EQUIP CO LTD
Publication Date
2011-11-23

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Abstract

The invention discloses a method, device and system for transmitting and receiving data, relating to a communication technology. The method comprises the following steps of: partitioning a resource block pair into at least two sub-resource block pairs, carrying out resource distribution on an E-PDCCH (Evolved-Physical Downlink Control Channel) by the sub-resource block pairs as a unit, and transmitting each data by one or a plurality of sub-resource block pairs according to the sizes of the data and the sub-resource block pairs, so as to improve the data transmission efficiency.
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Description

technical field

[0001] The present invention relates to communication technology, in particular to a method, device and system for data transmission and reception. Background technique

[0002] In a long term evolution (long term evolution, LTE) system, a physical downlink control channel (physical downlink control channel, PDCCH) is sent in each radio subframe, and is formed with a physical downlink shared channel (physical downlink shared channel, PDSCH) The multiplexing relationship of time division multiplexing (TDM), such as figure 1 As shown, the control area is used to transmit the PDCCH, and the data area is used to transmit the PDSCH. The PDCCH is transmitted through the first N orthogonal frequency division multiplexing (OFDM) symbols of a downlink subframe, where the value of N can be 1, 2, 3 or 4, and N=4 is only allowed to appear in In a system with a system bandwidth of 1.4MHz.

[0003] The control region for transmitting the PDCCH in the LTE system is compo...

Claims

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