发明名称 |
Clock recovery in a system which transports TDM data over a packet-switched network |
摘要 |
An ingress TDM network segment (101) and an egress TDM network segment (102) are connected by a packet-switched network (40). An ingress inter-working function (20) receives a TDM traffic flow (11) and an ingress data clock (12). A first mapping function (21) maps the TDM data (11) into first data containers using an ingress reference clock (22). The first mapping function conveys a difference between the ingress data clock (12) and the ingress reference clock (22) by a rate of justification operations to the mapped data within the first data containers. A second mapping function (23) maps the first data containers into second data containers using an ingress line clock (24). The mapping conveys a difference between the ingress reference clock (22) and the ingress line clock (24) by a rate of justification operations to the mapped data within the second data containers. Re-mapping is performed at boundaries between packet sub-networks (41, 42, 43). |
申请公布号 |
US8644349(B2) |
申请公布日期 |
2014.02.04 |
申请号 |
US200913321005 |
申请日期 |
2009.06.23 |
申请人 |
PAVANI ROBERTO;DEPRATI STEFANO;GIUBERGIA LELIO;TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) |
发明人 |
PAVANI ROBERTO;DEPRATI STEFANO;GIUBERGIA LELIO |
分类号 |
H04J3/06 |
主分类号 |
H04J3/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|