In October, China signed the International Covenant on Civil and Political Rights.
Part of the deal that included Mr. Wang's release was a Chinese promise to sign the International Covenant on Civil and Political Rights.
Mrs. Robinson said she had been told by Chinese officials that they were prepared to sign the International Covenant on Civil and Political Rights next month.
China has promised to sign the International Covenant on Civil and Political Rights, Convention, but has not specified when.
China said it would sign the International Covenant on Civil and Political Rights.
President Jimmy Carter signed the International Covenant on Civil and Political Rights in 1977.
Vietnam has signed the 1996 International Covenant on Civil and Political Rights, which was sponsored by the United Nations.
Last month China announced it would sign the International Convention on Civil and Political Rights, which guarantees freedom of expression, assembly and religion.
Early this month China signed the International Covenant on Civil and Political Rights.
China has pledged to sign the International Covenant on Civil and Political Rights this fall.