Beijing views the Dalai Lama, the spiritual leader who fled Tibet in 1959 after a failed uprising against Chinese rule, as a separatist and says it will choose his successor.
The Dalai Lama has said his successor will be born outside China and urged his followers to reject anyone chosen by Beijing.
Tibetan Buddhists hold that enlightened monks are reborn to carry forward their spiritual legacy.
The 14th Dalai Lama will turn 90 on July 6 and has said he would consult senior monks and others at this time to share possible clues on where his successor, a boy or a girl, could be found following his death.
"The rest of my life I will dedicate for the benefit of others, as much as possible, as extensive as possible," the Dalai Lama told a gathering of his followers on Monday as they offered prayers for his long life.
"There will be some kind of a framework within which we can talk about the continuation of the institution of the Dalai Lamas," he said, without elaborating on the framework.
He has previously said he could possibly reincarnate in India, where he lives in exile near the northern Himalayan town of Dharamshala. He was identified as the reincarnation of his predecessor when he was two.
Dolma Tsering Teykhang, the deputy speaker of the Tibetan parliament-in-exile in Dharamshala, said it was important for the world to hear directly from the Dalai Lama on the issue because while China "tries to vilify him at every chance ... it is trying to frame rules and regulations on how to have the reincarnation of the Dalai Lama in their hand".
"China is trying to grab this institution ... for its political purpose," she said.
"We want the incarnation of the Dalai Lama to be born not only for the survival of Tibet as a distinct culture, religion and nation, but also for the well-being of the whole humanity."
Thupten Ngodup, Tibet's chief state oracle, said typically such discussions on the reincarnation do not take place when a monk is still alive but things are different now mainly because the "Chinese government is interfering".
The religious conference this week, being held for the first time since 2019, will be attended by more than 100 Tibetan Buddhist leaders and will feature a video statement from the Dalai Lama.
Hollywood star Richard Gere, a long-time follower of Tibetan Buddhism, will be among those attending, organisers have said.
The Dalai Lama will attend prayers called by the Tibetan government in exile on July 5 and participate in his birthday celebrations a day later, according to a schedule shared by the organisers.
