The BBC World Service is looking for a partner to work on the transmission of programmes in a contract worth up to £300m.
The contract includes providing a content delivery system and will replace the current 10-year contract, which comes to an end in 2012.
The tender document says, "In 1997, World Service awarded a 10-year contract to provide a wide range of services associated with the aggregation, distribution and transmission of programmes. The contract was extended in 2005 to run from 2007 to the end of March 2012."
The contract involves five separate services, but they are contained within one "lot".
The services - which the BBC says it will discuss with potential bidders - could include the transmission and distribution of services, production facilities, a content delivery system, satellite distribution services, and FM relay stations.
The contract is worth between £20m and £30m a year, or £200m and £300m over a period of ten years. The initial term will be between five and ten years, and the company may extend it for up to five years more.