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Hybrid automatic repeat request method and user equipment used in long-term evolution network

A hybrid automatic retransmission and long-term evolution network technology, applied in the field of mobile communication, can solve the lack of HARQ mechanism and other problems, and achieve the effect of low system consumption and simple operation

Inactive Publication Date: 2012-10-03
이노피데이인코포레이티드 +1
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  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention provides a hybrid automatic retransmission method and user equipment in a long-term evolution network to solve the existing problem of lacking a HARQ mechanism suitable for large coverage area scenarios

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  • Hybrid automatic repeat request method and user equipment used in long-term evolution network
  • Hybrid automatic repeat request method and user equipment used in long-term evolution network
  • Hybrid automatic repeat request method and user equipment used in long-term evolution network

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0038]In a mobile communication system, whether the user equipment (UE) is performing service access or the UE is in the uplink and downlink services, due to the time-varying characteristics of the wireless channel and the impact of multipath fading signal transmission, as well as some unpredictable interference , which will lead to signal transmission failure. At present, the continuity and correctness of the uplink and downlink services are ensured through the hybrid automatic repeat (HARQ) request mechanism. This error-correctable link adaptation mechanism is limited by the processing time of the UE, the processing time of the base station (eNodeB), and the round-trip transmission time (RTT) of wireless signals in the wireless air en...

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Abstract

The invention discloses a hybrid automatic repeat request method and user equipment used in a long-term evolution network. In an embodiment of the invention, the hybrid automatic repeat request method used in the long-term evolution network includes that in an unlink direction, after a base station issues new control information for transmission of PDCCH (physical downlink control channel) data to the UE (user equipment), the UE judges whether burstification of PUSCH (physical uplink shared channel) data required to be transmitted is completed or not in a subframe at a preset transmission moment; when the burstification of the PUSCH data required to be transmitted is completed, the UE transmits the PUSCH data in the subframe according to a HARQ(hybrid automatic repeat request); and when the burstification of the PUSCH data required to be transmitted is uncompleted, the UE transmits a null data packet in the subframe, and transmits the PUSCH data after the burstification of the PUSCH data is completed according to the HARQ in a subframe at a next preset transmission moment. The hybrid automatic repeat request method and the user equipment in the scheme are applicable to a large-coverage scene with the radius of a residential area larger than 100 kilometers.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a hybrid automatic retransmission method and user equipment in a long-term evolution network. Background technique [0002] In the cellular mobile communication system, the current mobile communication technology already has a long-term evolution (LTE) key technology that combines Orthogonal Frequency Division Multiplexing (OFDM) and Multiple Input Multiple Output (MIMO). LTE R8 technology can achieve user throughput, spectrum efficiency and mobility to meet the international standard requirements of 3GPP, that is, to achieve an instantaneous peak rate of 100Mbit / s (spectral efficiency 5bit / Hz) and an instantaneous uplink peak rate of 50MHz under 20M bandwidth ( The design target of peak spectral efficiency 2.5(bit / s) / Hz). These mobile communication requirements can be fully satisfied when the coverage radius does not exceed 5 kilometers. When the coverage r...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/16
Inventor 宋磊汝聪翀吴群英佟国旭
Owner 이노피데이인코포레이티드