Mobile communication method and mobile station
AssigneeNtt Docomo, Inc.
InventorsHiroaki Yamagishi, Masashi Kanauchi, Mikio Iwamura
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Abstract
A mobile communication method according to the present invention includes the steps of: transmitting, from an LTE-AS function to an EMM function, a reconnection request, when the LTE-AS function detects that an RRC connection is chanted to an idle state; and transmitting, at the EMM function, a service request, when the EMM function receives the reconnection request and detects that the LTE-AS function is in a coverage area.
Claims6
A mobile communication method in which a mobile station performs communication via a first connection between the mobile station and a radio base station and a second connection between the radio base station and a switching center by use of a first protocol function and a second protocol function, wherein
- the first protocol function performs processing corresponding to a first protocol which terminates between the mobile station and the radio base station;
- the second protocol function performs processing corresponding to a second protocol which is an upper protocol of the first protocol and terminates between the mobile station and the switching center;
- and
- the method comprises the steps of:
- transmitting, from the first protocol function to a second radio base station which manages a cell detected by performing a cell search, a connection reestablishment request, after detecting a “Radio Link Failure” in a first connection established between the first protocol function and a first radio base station;
- transmitting, from the second radio base station to the first protocol function, a connection reestablishment reject, when the second radio base station receives the connection reestablishment request;
- and
- transmitting, a service request by the second protocol function when the first protocol function receives the connection reestablishment reject.
A mobile station configured to perform communication via a first connection between the mobile station and a radio base station and a second connection between the radio base station and a switching center by use of a first protocol function and a second protocol function, wherein
- the first protocol function is configured to perform processing corresponding to a first protocol which terminates between the mobile station and the radio base station;
- the second protocol function is configured to perform processing corresponding to a second protocol which is an upper protocol of the first protocol and terminates between the mobile station and the switching center;
- the first protocol function is configured to detect a “Radio Link Failure” in the first connection;
- and
- the second protocol function is configured to transmit a service request, when the first connection changes into an idle state.
A mobile station configured to perform communication via a first connection between the mobile station and a radio base station and a second connection between the radio base station and a switching center by use of a first protocol function and a second protocol function, wherein
- the first protocol function is configured to perform processing corresponding to a first protocol which terminates between the mobile station and the radio base station;
- the second protocol function is configured to perform processing corresponding to a second protocol which is an upper protocol of the first protocol and terminates between the mobile station and the switching center;
- the first protocol function is configured to transmit a connection reestablishment request to a radio base station which manages a cell detected by performing a cell search, and receive a connection reestablishment reject from the radio base station which manages the cell, after detecting a “Radio Link Failure” in a first connection;
- and
- the second protocol function is configured to transmit a service request, when the connection reestablishment reject is received by the first protocol function.
A mobile communication method in which a mobile station performs communication via a first connection between the mobile station and a radio base station and a second connection between the radio base station and a switching center by use of a first protocol function and a second protocol function, wherein
- the first protocol function performs processing corresponding to a first protocol which terminates between the mobile station and the radio base station;
- the second protocol function performs processing corresponding to a second protocol which is an upper protocol of the first protocol and terminates between the mobile station and the switching center;
- and
- the method comprises the steps of:
- transmitting, a service request by the second protocol function, when the first connection changes in an idle state, after detecting a “Radio Link Failure” in the first connection established between the first protocol function and a first radio base station.
Dependencies are inferred from the claim text.