Masayoshi Son plans to use SoftBank Group Corp. in a direct bid for Charter Communications Inc. after an earlier merger proposal by its U.S. wireless unit was rejected, according to a source familiar with the matter.

Son plans to make the offer this week, the source said, asking not to be identified ahead of a public announcement. The plan isn¡¯t complete and could change, the source said. Charter spurned an offer to merge with Sprint Corp., which is controlled by SoftBank.

The plan by Son, SoftBank¡¯s chairman, could reignite deal talks that had appeared to be dead late Sunday, when Charter said it wasn¡¯t interested in buying Sprint.