Abstract: In one embodiment, an apparatus for channel estimation includes a first receiver configured to obtain a first channel estimate associated with a communication channel between the apparatus and a user equipment. The apparatus also includes a second receiver. The second receiver includes a channel estimation unit and a normal receiver processing unit. The channel estimation unit is configured to compute a second channel estimate of channel conditions associated with the communication channel. The normal receiver processing unit is configured to compute weights using the second channel estimation unit. The channel estimation unit is further configured to obtain a delay between the obtaining of the first channel estimate and the computing of the weights, and to compute the second channel estimate using the delay and the first channel estimate.

Abstract: In one embodiment, an apparatus for channel estimation includes a first receiver configured to obtain a first channel estimate associated with a communication channel between the apparatus and a user equipment. The apparatus also includes a second receiver. The second receiver includes a channel estimation unit and a normal receiver processing unit. The channel estimation unit is configured to compute a second channel estimate of channel conditions associated with the communication channel. The normal receiver processing unit is configured to compute weights using the second channel estimation unit. The channel estimation unit is further configured to obtain a delay between the obtaining of the first channel estimate and the computing of the weights, and to compute the second channel estimate using the delay and the first channel estimate.

Abstract: The system is formed by at least a base station (SR1, SR2, . . . ) intended to relay information signals having variable rates between a plurality N (N.gtoreq.1) of mobile stations (M1, M2, . . . ) linked thereto and a nodal station (K, K', . . . ), this system comprising a first time-division multiplex link between the N mobile stations and the base station and a second time-division multiplex link (L1, L2, . . . ) between the base station and the nodal station, the first multiplex link comprising time intervals for containing the information of each mobile station, the second multiplex link comprising time intervals for the information relating to all the mobile stations. There is provided that:the time intervals of the first link contain n binary elements assigned according to the information bit stream,the time intervals of the second link are organized in frames of M words of n binary elements,and M is close to a multiple of N.