Receiving terminal and transmitting terminal
First Claim
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1. A receiving terminal configured to perform D2D communication with a transmitting terminal in a mobile communication system supporting a D2D proximity service, comprising:
- a receiver configured to receive a first data unit and a second data unit from the transmitting terminal in the D2D communication, the first data unit including data and a compressed header, the second data unit including data and a non-compressed header; and
a controller configured to hold the first data unit including the compressed header for a predetermined period even if decoding the compressed header is failed, whereinin the D2D communication, a timing at which a receiving entity is formed in the receiving terminal differs from a timing at which a transmitting entity is formed in the transmitting terminal,the D2D communication includes unicast D2D communication and non-unicast D2D communication, the non-unicast D2D communication including at least one of group cast D2D communication and broadcast D2D communication, andwhen the non-unicast D2D communication includes the second data unit including the non-compressed header, a reception cycle of the second data unit including the non-compressed header is shorter than a reception cycle of the second data unit including the non-compressed header when the unicast D2D communication includes the second data unit including the non-compressed header.
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Abstract
A receiving terminal includes: a receiver configured to receive a data unit configured by data and a header, from the transmitting terminal in the D2D communication; and a controller configured to hold the data unit including a compressed header for a predetermined period even if decoding the compressed header is failed when the compressed header is used as the header. In the D2D communication, a timing at which a receiving entity is formed in the receiving terminal differs from a timing at which a transmitting entity is formed in the transmitting terminal.
3 Citations
12 Claims
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1. A receiving terminal configured to perform D2D communication with a transmitting terminal in a mobile communication system supporting a D2D proximity service, comprising:
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a receiver configured to receive a first data unit and a second data unit from the transmitting terminal in the D2D communication, the first data unit including data and a compressed header, the second data unit including data and a non-compressed header; and a controller configured to hold the first data unit including the compressed header for a predetermined period even if decoding the compressed header is failed, wherein in the D2D communication, a timing at which a receiving entity is formed in the receiving terminal differs from a timing at which a transmitting entity is formed in the transmitting terminal, the D2D communication includes unicast D2D communication and non-unicast D2D communication, the non-unicast D2D communication including at least one of group cast D2D communication and broadcast D2D communication, and when the non-unicast D2D communication includes the second data unit including the non-compressed header, a reception cycle of the second data unit including the non-compressed header is shorter than a reception cycle of the second data unit including the non-compressed header when the unicast D2D communication includes the second data unit including the non-compressed header. - View Dependent Claims (2, 3)
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4. A receiving terminal configured to perform D2D communication with a transmitting terminal in a mobile communication system supporting a D2D proximity service, comprising:
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a receiver configured to receive a first data unit and a second data unit from the transmitting terminal in the D2D communication, the first data unit including data and a compressed header, the second data unit including data and a non-compressed header; and a controller configured to form a receiving entity for receiving the first data unit and the second data unit in the D2D communication, wherein the controller is further configured to form, besides the receiving entity, a feedback transmitting entity for transmitting a feedback to the first data unit and the second data unit in the D2D communication, in the D2D communication, a timing at which the receiving entity is formed differs from a timing at which a transmitting entity for transmitting the first data unit and the second data unit is formed in the transmitting terminal, the D2D communication includes unicast D2D communication and non-unicast D2D communication, the non-unicast D2D communication including at least one of group cast D2D communication and broadcast D2D communication, and when the non-unicast D2D communication includes the second data unit including the non-compressed header, a reception cycle of the second data unit including the non-compressed header is shorter than a reception cycle of the second data unit including the non-compressed header when the unicast D2D communication includes the second data unit including the non-compressed header. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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12. A transmitting terminal configured to perform D2D communication with a receiving terminal in a mobile communication system supporting a D2D proximity service, comprising:
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a transmitter configured to transmit a first data unit and a second data unit to the receiving terminal in the D2D communication, the first data unit including data and a compressed header, and the second data unit including data and a non-compressed header; and a controller configured to form a transmitting entity for transmitting the first data unit and the second data unit in the D2D communication, wherein the D2D communication includes unicast D2D communication and non-unicast D2D communication, the non-unicast D2D communication including at least one of group cast D2D communication and broadcast D2D communication, the controller does not use the first data unit including the compressed header in the non-unicast D2D communication, but uses the first data unit including the compressed header in the unicast D2D communication, in the D2D communication, a timing at which a receiving entity for receiving the data unit is formed in the receiving terminal differs from a timing at which the transmitting entity is formed, and when the non-unicast D2D communication includes the second data unit including the non-compressed header, a transmission cycle of the second data unit including the non-compressed header is shorter than a transmission cycle of the second data unit including the non-compressed header when the unicast D2D communication includes the second data unit including the non-compressed header.
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Specification