Method and apparatus for transmitting control signaling

Abstract

A method and apparatus for transmitting control signaling includes: transmitting indication information on a transmission location of control signaling by a base station to a mobile station configured as an open-loop MIMO transmission mode; transmitting the control signaling by the base station in a data region by using the open-loop MIMO transmission mode or a transmit diversity transmission mode if the location for transmitting the control signaling indicated by the information on a transmission location of control signaling is located at the data region. Whereby the number of mobile stations to be scheduled in a cell is increased and results in the scheduling information to be transmitted in a subframe increased, the control signaling of a mobile station configured as an open-loop MIMO transmission mode is placed in a data region for transmission, thereby increasing the number of UE scheduled, increasing the throughput of the system.

What is claimed is: 
     
         1 . A method for receiving control signaling in a mobile station in open-loop MIMO transmission mode, the method comprising:
 detecting control signaling which is transmitted by a base station based on the dedicated reference signal, where   a rank adopted by the base station in transmission of the control signaling is a minimum rank of a supportable open-loop MIMO transmission mode.   
     
     
         2 . The method according to  claim 1 , wherein the control signaling is transmitted by the base station in a data region by using a preconfigured open-loop MIMO transmission mode or a transmit diversity transmission mode if the location for transmitting the control signaling indicated by indication information on a transmission location of control signaling transmitted by the base station is located at the data region. 
     
     
         3 . The method according to  claim 2 , the detecting assumes transmit diversity transmission mode, if indicated by the base station to detect PDSCH transmitted by the base station using transmit diversity transmission mode. 
     
     
         4 . A mobile station in open-loop MIMO transmission mode, comprising:
 a receiver to detect a control signaling which is transmitted by a base station based on the dedicated reference signal, where   a rank adopted by the base station in transmission of the control signaling is a minimum rank of a supportable open-loop MIMO transmission mode.   
     
     
         5 . The mobile station according to  claim 4 , wherein the control signaling is transmitted by the base station in a data region by using a preconfigured open-loop MIMO transmission mode or a transmit diversity transmission mode if the location for transmitting the control signaling indicated by indication information on a transmission location of control signaling transmitted by the base station is located at the data region. 
     
     
         6 . The method according to  claim 5 , the receiver assumes transmit diversity transmission mode, if indicated by the base station to detect PDSCH transmitted by the base station using transmit diversity transmission mode.