| 摘要 |
A transmission method for use in a multi-hop wireless communication system, the system comprising a source apparatus, a destination apparatus and one or more intermediate apparatuses, said source apparatus being operable to transmit along a series of links forming a communication path extending from the source apparatus to the destination apparatus via the or each intermediate apparatus, and the or each intermediate apparatus being operable to receive from a previous apparatus along the path and to transmit to a subsequent apparatus along the path, the system having access to a time-frequency format for use in assigning available transmission frequency bandwidth during a discrete transmission interval, said format defining a plurality of transmission windows within such an interval, each window occupying a part of that interval and having a frequency bandwidth profile within said available transmission frequency bandwidth over its part of that interval, each said window being assignable for such a transmission interval to one or more of said apparatuses for use in transmission, the transmission windows including an initial control window for control information transmission, and a relay window for transmission by the source apparatus to at least one of said intermediate apparatuses, the relay window being defined as the last window in the discrete transmission interval assignable to the source apparatus for transmission, and the method comprising: employing said format for such a transmission interval to assign the control window to the source apparatus and to the or each intermediate apparatus for control information transmission; and to assign the relay window to the source apparatus for data transmission to a particular one of said intermediate apparatuses; so that at least one window between the preamble window and the relay window can be assigned to the particular intermediate apparatus for data transmission; and transmitting in the transmission interval. |
