Method and apparatus for supporting device-to-device communications
AssigneeSamsung Electronics Co., Ltd.
InventorsPil-Yong Hwang, Ok-Seon Lee
Life of this patent
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Abstract
A method for supporting Device-to-Device (D2D) communications by a Mobile Station (MS) in a communication system is provided. The method includes performing a network entry procedure with a Base Station (BS) and receiving, from the BS, a BS prefix, a temporary Identifier (ID), and a valid period timer value for the temporary ID, generating a device ID using the BS prefix and the temporary ID, and performing, upon detecting data to be transmitted, communication with a peer MS using the device ID for a time indicated by the valid period timer value. The BS prefix is information unique within the communication system, and the temporary ID is information unique within a coverage area of the BS.
Claims16
A method for supporting device-to-device (D2D) communications by a mobile station (MS) in a communication system, the method comprising:
- performing a network entry procedure with a base station (BS) and receiving, from the BS, a BS prefix, a temporary identifier (ID), and a valid period timer value for the temporary ID;
- generating a device ID based on the BS prefix and the temporary ID;
- and
- performing, upon detecting data to be transmitted, communication with a peer MS based on the device ID for a time indicated by the valid period timer value,
- wherein the BS prefix is information unique within the communication system, and the temporary ID is information unique within a coverage area of the BS.
A method for supporting device-to-device (D2D) communications by a base station (BS) in a communication system, the method comprising:
- performing a network entry procedure with a mobile station (MS) and transmitting, to the MS, a BS prefix, a temporary identifier (ID), and a valid period timer value for the temporary ID;
- upon detecting disconnection of a communication link to the MS, starting operation of a timer which is set based on the valid period timer value;
- and
- deleting, upon expiration of the timer, the temporary ID from a list in which the BS records temporary IDs assigned to the MS,
- wherein the BS prefix is information unique within the communication system, and the temporary ID is information unique within a coverage area of the BS.
A method for supporting device-to-device (D2D) communications by a base station (BS) in a communication system, the method comprising:
- receiving, from a mobile station (MS), a device identifier (ID) including a serving BS's prefix and a serving BS's temporary ID;
- transmitting, to the MS, a target BS's prefix, a target BS's temporary ID, and a valid period timer value for the target BS's temporary ID;
- and
- returning the serving BS's temporary ID to the serving BS which is detected from the serving BS's prefix,
- wherein the serving BS's prefix and the target BS's prefix are information unique within the communication system, the serving BS's temporary ID is information unique within a coverage area of the serving BS, and the target BS's temporary ID is information unique within a coverage area of the target BS.
A mobile station (MS) apparatus for supporting device-to-device (D2D) communications in a communication system, the method comprising:
- a receiver configured to:
- perform a network entry procedure with a base station (BS), and
- receive, from the BS, a BS prefix, a temporary identifier (ID), and a valid period timer value for the temporary ID;
- a generator configured to generate a device ID based on the BS prefix and the temporary ID;
- a detector configured to detect data to be transmitted;
- and
- a transmitter configured to perform communication with a peer MS based on the device ID for a time indicated by the valid period timer value, if the detector detects data to be transmitted,
- wherein the BS prefix is information unique within the communication system, and the temporary ID is information unique within a coverage area of the BS.
A base station (BS) apparatus for supporting device-to-device (D2D) communications in a communication system, the apparatus comprising:
- a transmitter configured to:
- perform a network entry procedure with a mobile station (MS), and
- transmit, to the MS, a BS prefix, a temporary identifier (ID), and a valid period timer value for the temporary ID;
- a detector configured to detect disconnection of a communication link to the MS;
- a timer configured to:
- set a timer value based on the valid period timer value, and
- start operation thereof, if the detector detects the disconnection of a communication link to the MS;
- and
- a list manager configured to delete, upon expiration of the timer, the temporary ID from a list in which the BS records temporary IDs assigned to the MS,
- wherein the BS prefix is information unique within the communication system, and the temporary ID is information unique within a coverage area of the BS.
A base station (BS) apparatus for supporting device-to-device (D2D) communications in a communication system, the apparatus comprising:
- a receiver configured to receive, from a mobile station (MS), a device identifier (ID) including a serving BS's prefix and a serving BS's temporary ID;
- and
- a transmitter configured to:
- transmit, to the MS, a target BS's prefix, a target BS's temporary ID, and a valid period timer value for the target BS's temporary ID, and
- return the serving BS's temporary ID to the serving BS which is detected from the serving BS's prefix,
- wherein the serving BS's prefix and the target BS's prefix are information unique within the communication system, the serving BS's temporary ID is information unique within a coverage area of the serving BS, and the target BS's temporary ID is information unique within a coverage area of the target BS.
Dependencies are inferred from the claim text.