Using dedicated reference signal to support a coordinated multipoint transmission

摘要

A procedure performed by a First Wireless Device (202, 302) to use a dedicated Reference Signal to admit a coordinated Multipoint Transmission.Comprising: contacting a Second Wireless Device (204, 302) to coordinate a Transmission of Data to a First user device (206,402) from the first Wireless Device (202, 302) and the second Wireless Device (204, 302); and transmit, in a First direction (212),A First symbol Modulation Data Transmission of Data by the first Wireless Device (202,302) so that a Transmission of the First Data Modulation symbol is coordinated with a First Modulation symbol transmission of Data for the second Wireless Device (204302) in a Second direction (214), the procedure is characterized by applying a cluster specific Encryption of a First Pilot symbol modulation and transmit;In the first direction (212), the first symbol of the first Pilot Modulation Encryption for Wireless Device (202,302) such that a First Pilot symbol Transmission Modulation Encryption is coordinated with a First Pilot symbol transmission of modulation by the second Encryption Device inalu00e1mBrico (204, 302) in the second direction (214).