BEIJING — Chinese and American trade negotiators said Sunday that they had agreed to a framework of a deal on tariffs and other issues before an expected meeting of the countries’ top leaders this week.

“We are moving forward to the final details of the type of agreement that the leaders can review and decide if they want to conclude together,” Jamieson Greer, the United States trade representative, said to reporters in Kuala Lumpur, Malaysia’s capital.

He also said the two sides had also discussed another extension in a series of truces on tariffs they have engaged in this year.

China’s top trade negotiator, Li Chenggang, described the talks between the United States and China as “candid and in-depth discussions” on the trade deal, adding that the two sides had reached a “preliminary c

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