| 主权项 |
1. A wireless device having cellular network assisted Device-to-Device, D2D, communication capabilities, comprising:
a transceiver; at least one processor; and memory containing instructions executable by the at least one processor whereby the wireless device is operable to transmit, via the transceiver a D2D signal in a frequency band of a cellular network during a predefined D2D period according to one of a plurality of predefined D2D transmission patterns, the plurality of predefined D2D transmission patterns having at least one of the following properties:
a cell-specific circular shift;the predefined D2D period comprising N time resources and F frequency resources defining a total of N×F D2D resources divided into M clusters each comprising K=N/M time resources, and each of the plurality of predefined D2D transmission patterns comprising at most one D2D resource in each of the M clusters, where M>1;the predefined D2D period comprising N time resources and F frequency resources defining a total of N×F D2D resources divided into M clusters each comprising K=N/M time resources, and the plurality of predefined D2D transmission patterns being assigned to each of the M clusters in a time-first fashion starting with frequency resources at either a lowest or highest available frequency for D2D communication in the frequency band of the cellular network (10);the predefined D2D period comprising N time resources and F frequency resources defining a total of N×F D2D resources divided into M clusters each comprising K=N/M time resources, and, for at least one of the plurality of predefined D2D transmission patterns, a relative mapping between a pattern index for the at least one of the plurality of predefined D2D transmission patterns and time resources within a cluster is different for different clusters and/or different frequency resources; andeach pattern of the plurality of predefined D2D transmission patterns spans two frequency resources within the predefined D2D period. |
