Methods and apparatuses in a mobile communication network

摘要

Techniques for supporting concurrent deployment of 2-millisecond and 10-millisecond TTI for E-DCH transmissions in CELL_FACH state and Idle Mode are disclosed. One example method comprises receiving a (310) transport block from a mobile terminal, wherein said transport block is transmitted using either a 10-millisecond or 2-millisecond TTI, and sending (320), to an RNC, an indication of whether data carried by the transport block was transmitted using the 10-millisecond TTI or the 2-millisecond TTI. In some embodiments, the indication is sent in a user plane frame sent over a base-station-to-RNC interface. A spare bit in an uplink data frame sent to the RNC may be used, for example.

主权项

1. A method, in a base station of a mobile communication network, the method comprising:
receiving a transport block from a mobile terminal, wherein said transport block is transmitted using either a 10-millisecond transmit time interval (TTI) or a 2-millisecond TTI; and sending, to a Radio Network Controller (RNC), an indication of whether data carried by the transport block was transmitted using the 10-millisecond TTI or the 2-millisecond TTI, wherein the indication comprises a first bit indicating that a TTI-length information element is present, and wherein the TTI-length information element comprises a second bit indicating whether the data was transmitted using the 10-millisecond TTI or the 2-millisecond TTI.