Sounding signal in a multicarrier wireless device

摘要

A wireless device receives message(s) configuring cell groups and transmissions of sounding reference signals. n sounding reference signals are configured to be transmitted in a subframe (n>1). The wireless device transmits at least one packet on at least one first cell in symbols of the subframe. The symbols comprise the last symbol of the subframe. The wireless device transmits a k subset of the n sounding reference signals in the last symbol (1<=k

主权项

1. A method comprising:
a) receiving, by a wireless device, at least one radio resource control message from a base station, said at least one radio resource control message to cause in said wireless device:
i) configuration of a primary cell and at least one secondary cell in a plurality of cells;ii) assignment of each of said at least one secondary cell to a cell group in a plurality of cell groups, said plurality of cell groups comprising:
(1) a primary cell group comprising a first subset of said plurality of cells, said first subset comprising said primary cell; and(2) a secondary cell group comprising a second subset of said at least one secondary cell; andiii) configuration of transmissions of sounding reference signals by said wireless device, n sounding reference signals configured to be transmitted in a first subframe, n being greater than 1; b) transmitting, by said wireless device, at least one packet on at least one first cell in said plurality of cells in a plurality of symbols of said first subframe, said plurality of symbols comprising the last symbol of said first subframe; c) transmitting, by said wireless device, a k subset of said n sounding reference signals in said last symbol, wherein 1<=k