| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: techniques for sending a message for random access by user equipment (UE) are described. In one aspect, the UE may send the message on a control channel for random access and may send a reserved channel identifier to indicate that the message is sent on the control channel. In another aspect, the UE may send a message in a protocol data unit (PDU) and may send additional information (e.g., a buffer status report) in the PDU if it can carry additional information. In yet another aspect, the UE may generate a short message authentication code for integrity protection (MAC-I) for the message. The short MAC-I may have a smaller size and may be used to authenticate the UE. In yet another aspect, the UE may send UE ID of one or more types for random access and may transmit the UE ID type through a format field in the message.EFFECT: high efficiency for transmitting information for establishing a connection.16 cl, 19 dwg, 4 tbl |
