Title:
Operation of the forward direction link acknowledgment channel to opposite direction link data
Document Type and Number:
Japanese Patent JP6081335
Kind Code:
B2
Abstract:
An acknowledgement method in a wireless communication system. Initially, a reverse supplemental channel (R-SCH) frame is received at a base station. The base station then transmits an acknowledgement (ACK) signal if quality of the received R-SCH frame is indicated as being good. A negative acknowledgement (NAK) signal is transmitted only if the received data frame is indicated as being bad but has enough energy such that, if combined with energy from retransmission of the data frame, it would be sufficient to permit correct decoding of the data frame. If the best base station is known, the acknowledgement method may reverse the transmission of the acknowledgement signals for the best base station so that only NAK signal is sent. A positive acknowledgement is assumed in the absence of an acknowledgement. This is done to minimize the transmit power requirements.
The ACK/NACK message is encoded with a block code and spreaded with a spreading code.
Inventors:
Sandip Circer
Tao Chen
Edward G. Jr. Tidemann
Peter girl
Tao Chen
Edward G. Jr. Tidemann
Peter girl
Application Number:
JP2013205854A
Publication Date:
February 15, 2017
Filing Date:
September 30, 2013
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H04L1/16; H04B7/005; H04L1/00; H04L1/08; H04L1/18; H04W28/04; H04B17/00; H04L1/12
Domestic Patent References:
| JP2002539672A |
Foreign References:
| WO2003003592A2 | ||||
| WO2002037872A2 |
Attorney, Agent or Firm:
Kurata Masatoshi
Yoshihiro Fukuhara
Morisezo Iseki
Okumura Motohiro
Yoshihiro Fukuhara
Morisezo Iseki
Okumura Motohiro