发明名称 |
COMMUNICATION SYSTEM LINK RE-ESTABLISHMENT PROTOCOL |
摘要 |
2120621 9308660 PCTABS00021 A method for re-establishing a communication link that has been lost between a portable unit (406) and a fixed unit or base station (402) provides for a way of quickly re-establishing the lost communication link, on the previously used RF channel by transmitting a link re-establishment code word (900) using MUX 1 or protocol after determining that synchronization has been lost (502) for a predetermined period of time (504). This is followed by automatically switching the portable unit (406) from MUX 1 to MUX 3 communication protocol. Followed by re-establishing communication (re-establish synchronization) between the portable (406) and base station (402) in MUX 3 and switching the two communication devices (402 and 406) back to MUX 1 after the communication link has been re-established. The same steps can be followed by base site (402) if it has been the first to detect loss of the communication link.
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申请公布号 |
CA2120621(A1) |
申请公布日期 |
1993.04.29 |
申请号 |
CA19922120621 |
申请日期 |
1992.10.21 |
申请人 |
MOTOROLA INC |
发明人 |
MARKO PAUL D;PATSIOKAS STELIOS J;WADIN CRAIG P |
分类号 |
H04L29/06;H04M1/725;(IPC1-7):H04M1/00 |
主分类号 |
H04L29/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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