Methods and devices for synchronizing data reception from a first radio network and from a second radio network
First Claim
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1. A synchronization device, comprising:
- a receiver circuit configured to receive data from a first radio network during a first time interval and to receive data from a second radio network during a second time interval;
a frequency synchronization circuit configured to;
control a common system clock by tuning the common system clock to a remote system clock of the first radio network during the first time interval based on data received from the first radio network, and tuning the common system clock to a remote system clock of the second radio network during the second time interval based on data received from the second radio network;
determine (i) a first clock rate associated with the remote system clock of the first radio network based on data received during the first time interval, and (ii) a second clock rate associated with the remote system clock of the second radio network based on data received during the second time interval; and
a timing synchronization circuit configured to time-synchronize data reception during the first time interval and the second time interval based on (i) the tuned common system clock during the first time interval and the second time interval, respectively, and (ii) a free running clock that runs independently of a subscriber identity module.
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Abstract
A synchronization device includes a receiver circuit configured to receive data from a first radio network during a first time interval and to receive data from a second radio network during a second time interval; a frequency synchronization circuit configured to control a common system clock based on first data received from the first radio network and based on second data received from the second radio network; and a timing synchronization circuit configured to time-synchronize data reception based on the common system clock and based on a free running clock.
12 Citations
14 Claims
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1. A synchronization device, comprising:
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a receiver circuit configured to receive data from a first radio network during a first time interval and to receive data from a second radio network during a second time interval; a frequency synchronization circuit configured to; control a common system clock by tuning the common system clock to a remote system clock of the first radio network during the first time interval based on data received from the first radio network, and tuning the common system clock to a remote system clock of the second radio network during the second time interval based on data received from the second radio network; determine (i) a first clock rate associated with the remote system clock of the first radio network based on data received during the first time interval, and (ii) a second clock rate associated with the remote system clock of the second radio network based on data received during the second time interval; and a timing synchronization circuit configured to time-synchronize data reception during the first time interval and the second time interval based on (i) the tuned common system clock during the first time interval and the second time interval, respectively, and (ii) a free running clock that runs independently of a subscriber identity module. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for synchronizing data reception from a first radio network and data reception from a second radio network, the method comprising:
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receiving data from a first radio network during a first time interval and from a second radio network during a second time interval; controlling a common system clock by tuning the common system clock to a remote system clock of the first radio network during the first time interval based on data received from the first radio network and tuning the common system clock to a remote system clock of the second radio network during the second time interval based on data received from the second radio network; determining (i) a first clock rate associated with the remote system clock of the first radio network based on data received during the first time interval, and (ii) a second clock rate associated with the remote system clock of the second radio network based on data received during the second time interval; and time-synchronizing data reception during the first time interval and the second time interval based on (i) the tuned common system clock during the first time interval and the second time interval, respectively, and (ii) a free running clock that runs independently of a subscriber identity module. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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Specification