| 摘要 |
Alternate speech (56, 57) and data (52, 53) communication over a single circuit is implemented within a communication network which includes first nodes (61) which include both a data source (62) and a speech source (63). Digital information, comprising either speech parameters or data, is sent in discrete blocks (51-57) between the first node (61) and a second node (73) connected to the network. An inband signaling bit pattern (51, 55) is included within selected blocks sent by a TX-alternator (64, 79) in the sending node (61, 73) to indicate whether all following digital information is to be interpreted by the receiving node as speech or data and a RX-alternator (74, 84) in the receiving node (61, 73) interprets the digital information in accordance with the last received inband signaling pattern (51, 55). One exemplary implementation is in a GSM cellular radio network in tandem free operation. |
