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Base station, mobile station, and downlink scheduling method

A downlink and mobile station technology, applied in transmission path sub-channel allocation, wireless communication, electrical components, etc., can solve problems such as not applicable to wireless communication systems, and achieve the effect of increasing signaling overhead

Active Publication Date: 2016-10-05
NTT DOCOMO INC
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Problems solved by technology

[0004] In the LTE-Advanced communication system, downlink scheduling information (or called downlink scheduling grant) for notifying the base station of the downlink scheduling result has been defined, however, the defined in the LTE-Advanced communication system Downlink scheduling signaling only supports dynamic SU / MUMIMO, not NOMA, so it is not suitable for wireless communication systems that combine NOMA with dynamic SU / MU MIMO

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  • Base station, mobile station, and downlink scheduling method
  • Base station, mobile station, and downlink scheduling method
  • Base station, mobile station, and downlink scheduling method

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Embodiment Construction

[0018] A wireless communication system, a base station, a mobile station, and a downlink scheduling method according to embodiments of the present invention will be described below with reference to the accompanying drawings. In the drawings, like reference numerals denote like elements throughout. It should be understood that the embodiments described herein are illustrative only and should not be construed as limiting the scope of the present invention.

[0019] First, refer to figure 1 One example of a wireless communication system using NOMA and dynamic SU / MU MIMO in combination is described to which an embodiment of the present invention can be applied.

[0020] figure 1 The illustrated example of a wireless communication system includes a base station and a plurality of user equipments (UEs) in communication with the base station. The base station may be connected to an upper layer device (not shown in the figure), which in turn may be connected to a core network (not...

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Abstract

The invention provides a base station, a mobile station, and a downlink scheduling method executed by the base station. The base station comprises a scheduling unit which is configured to allocate downlink resource block and flow number, antenna port and a scramble identifier for the antenna port to the mobile station, wherein the combination of the flow number, the antenna port and the scramble identifier determines the successive interference cancellation order of the mobile station in the downlink resource block, and a sending unit which is configured to send downlink scheduling information to the mobile station, and the downlink scheduling information comprises the information which indicates the downlink resource block and the information which indicates the flow number, the antenna port and the scramble identifier. According to the base station, the mobile station, and the downlink scheduling method, while the signaling overhead is increased as small as possible, a wireless communication system with the combined use of non-orthogonal multiple-address and dynamic single-user and multi-user multiple inputs and multiple outputs is supported.

Description

technical field [0001] The present invention relates to the field of wireless communication, and in particular to a wireless communication system that can be used in a wireless communication system (such as a wireless communication system that combines non-orthogonal multiple access (NOMA) and dynamic single-user / multi-user multiple-input multiple-output (MIMO)) The base station, mobile station and downlink scheduling method used. Background technique [0002] Non-Orthogonal Multiple Access (NOMA) is a radio access technology proposed in LTE (Long Term Evolution) release 13 studied by 3GPP (Third Generation Partnership Project). In the NOMA system, at the transmitting end, the base station multiplexes data for multiple mobile stations at different power levels in each resource block to improve system throughput, and at the receiving end, each mobile station cancels according to its continuous interference ( SIC) sequence, which represents the demodulation sequence of data f...

Claims

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Application Information

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IPC IPC(8): H04W72/12
CPCH04L5/003H04W72/23H04W72/12
Inventor 李安新蒋惠玲
Owner NTT DOCOMO INC
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