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Multi-subband downlink resource allocation method, system and base station of wireless communication system

A wireless communication system and resource allocation technology, applied in the field of multi-subband downlink resource allocation, can solve the problems of high PDCCH occupation and overhead, low system service transmission efficiency, affecting PDSCH service transmission, etc., and achieve the effect of improving service transmission efficiency.

Inactive Publication Date: 2020-01-07
POTEVIO INFORMATION TECH CO LTD
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Problems solved by technology

If dynamic resource allocation needs to be implemented, the PDCCH occupies a lot of overhead, which affects the transmission of PDSCH services, and the system service transmission efficiency is low

Method used

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  • Multi-subband downlink resource allocation method, system and base station of wireless communication system
  • Multi-subband downlink resource allocation method, system and base station of wireless communication system
  • Multi-subband downlink resource allocation method, system and base station of wireless communication system

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Embodiment Construction

[0060] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0061] Figure 4 It is a flowchart of a multi-subband downlink resource allocation method for a wireless communication system provided by an embodiment of the present invention.

[0062] Such as Figure 4 As shown, a method for allocating multi-subband downlink resources in a wireless communication system in this embodiment includes:

[0063] S41. When the base station sends downlink resources to the user equipment UE through a radio frame, the downlink resources are allocated according to the first allocation strategy, and the downlink resources include the first indication information carried by PCFICH1 and the second indication information carried by PCFICH2:

[0064...

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Abstract

The present invention provides a multi-subband downlink resource allocation method of a wireless communication system, comprising: when a base station sends a downlink resource to a UE through a wireless frame, the downlink resource (the first indication information carried by PCFICH1 and the second indication information carried by PCFICH2) Allocation according to the first allocation strategy: The first allocation strategy includes: the 1-2th OFDM symbol of the first frequency point occupied by the UE is allocated as PCFICH1, and the 5th-13th OFDM symbol of the first frequency point is allocated according to the first Allocation of indication information; the 1-2 OFDM symbols of the second frequency occupied by the UE are assigned as PCFICH2, the 3-13 OFDM symbols of the second frequency and the rest of the frequency points (excluding the frequency points occupied by the UE All OFDM symbols of the first frequency point and other frequency points other than the second frequency point) are allocated according to the second indication information. The present invention realizes system dynamic resource allocation through frequency division in the same wireless frame, so that PDCCH and PDSCH can be sent at the same time, so that the transmission efficiency of PDSCH service can be effectively improved. Also provided are a system and a base station.

Description

technical field [0001] The invention relates to a multi-subband downlink resource allocation method, system and base station of a wireless communication system. Background technique [0002] A wireless communication system occupies a discontinuous spectrum bandwidth, and its schematic diagram is as follows figure 1 shown. Each physical channel with a frequency domain of 25kHz bandwidth is defined as a frequency point, up to frequency points. Each frequency point adopts OFDM technology, and all discontinuous frequency points are aggregated together, and the system performs unified scheduling and assigns them to users, which constitutes this communication system with carrier aggregation characteristics. [0003] Such as figure 2 As shown, in the wireless communication system, a wireless frame corresponding to each frequency point has a length of 25 ms, includes 45 OFDM symbols, and downlink resources occupy 13 OFDM symbols. [0004] For a multi-subband service frequen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
CPCH04W72/0446H04W72/53H04W72/23
Inventor 王丽
Owner POTEVIO INFORMATION TECH CO LTD
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