METHOD AND APPARATUS FOR DEVICE-TO-DEVICE HARQ PROCESS MANAGEMENT
First Claim
1. A method of communication for a transmitting user equipment (TX UE), the method comprising:
- receiving, upon generation of data to be transmitted to a receiving UE (RX UE), allocation of resources to be used for device-to-device (D2D) communication;
transmitting a scheduling assignment (SA) containing identification information of at least one RX UE to the at least one RX UE;
assigning at least one hybrid automatic repeat request (HARQ) process for the identification information of the at least one RX UE; and
transmitting data to the at least one RX UE based on the HARQ process.
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Accused Products
Abstract
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method and an apparatus that may repeatedly transmit signals to cope with and reduce transmission errors in device-to-device (D2D) communication are provided. The method includes receiving, upon generation of data to be transmitted to a receiving user equipment (UE) (RX UE), allocation of resources to be used for D2D communication, transmitting a scheduling assignment (SA) containing identification information of at least one RX UE to the at least one RX UE, assigning at least one hybrid automatic repeat request (HARQ) process for the identification information of the at least one RX UE, and transmitting data to the at least one RX UE based on the HARQ process. Accordingly, it is possible to remove factors causing system performance degradation when retransmission operation for communication between a UE and a base station (eNB) is introduced to D2D communication.
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Citations
20 Claims
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1. A method of communication for a transmitting user equipment (TX UE), the method comprising:
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receiving, upon generation of data to be transmitted to a receiving UE (RX UE), allocation of resources to be used for device-to-device (D2D) communication; transmitting a scheduling assignment (SA) containing identification information of at least one RX UE to the at least one RX UE; assigning at least one hybrid automatic repeat request (HARQ) process for the identification information of the at least one RX UE; and transmitting data to the at least one RX UE based on the HARQ process. - View Dependent Claims (2, 3, 4, 5)
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6. A method of communication for a receiving user equipment (RX UE), the method comprising:
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determining whether destination identification information contained in a scheduling assignment (SA) received from at least one TX UE is equal to identification information of the RX UE; assigning a hybrid automatic repeat request (HARQ) process for the SA when the destination identification information is equal to the identification information of the RX UE; and receiving data from the at least one TX UE based on the HARQ process. - View Dependent Claims (7, 8, 9, 10)
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11. A transmitting user equipment (TX UE) comprising:
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a communication unit configured to communicate with another network entity; and a control unit configured to control a process of; receiving, upon generation of data to be transmitted to a receiving UE (RX UE), allocation of resources to be used for device-to-device (D2D) communication, transmitting a scheduling assignment (SA) containing identification information of at least one RX UE to the at least one RX UE, assigning at least one HARQ process for the identification information of the at least one RX UE, and transmitting data to the at least one RX UE based on the hybrid automatic repeat request (HARQ) process. - View Dependent Claims (12, 13, 14, 15)
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16. A receiving user equipment (RX UE) comprising:
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a communication unit configured to communicate with another network entity; and a control unit configured to control a process of; determining whether destination identification information contained in a scheduling assignment (SA) received from at least one TX UE is equal to identification information of the RX UE, assigning a HARQ process for the SA when the destination identification information is equal to the identification information of the RX UE, and receiving data from the at least one TX UE based on the hybrid automatic repeat request (HARQ) process. - View Dependent Claims (17, 18, 19, 20)
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Specification