Patent ID: 7372912
Filing Date: 2008-05-13
Classification: H04B

Abstract:
1. A transmission method for a multiple antenna communication system, the method comprising: receiving channel information from terminals; allocating channelization codes for each transmit antenna based upon the received channel information, the allocating of the channelization codes being performed sequentially to multiple terminals according to a number of bits that can be transmitted, wherein the allocating results in a single channelization code being shared by at least two of the multiple terminals, wherein allocating a same channelization code to multiple terminals based upon channel states when a number of channelization codes used to distinguish terminals is less than a number of terminals receiving a service, and wherein the same channelization code is allocated only when a related value of a set of weight values for those terminals that share said channelization code is below a particular threshold value; and transmitting data via each transmit antenna according to the allocated channelization codes, wherein the receiving, the allocating, and the transmitting are performed in a closed-loop Multiple-Input Multiple-Output (MIMO) communication system.