08446892 is referenced by 41 patents and cites 1104 patents.

A channel structure has at least two channel sets. Each channel set contains multiple channels and is associated with a specific mapping of the channels to the system resources available for data transmission. Each channel set may be defined based on a channel tree having a hierarchical structure. To achieve intra-cell interference diversity, the channel-to-resource mapping for each channel set is pseudo-random with respect to the mapping for each remaining channel set. In each scheduling interval, terminals are scheduled for transmission on the forward and/or reverse link. The scheduled terminals are assigned channels from the channel sets. Multiple terminals may use the same system resources and their overlapping transmissions may be separated in the spatial domain. For example, beamforming may be performed to send multiple overlapping transmissions on the forward link, and receiver spatial processing may be performed to separate out multiple overlapping transmissions received on the reverse link.

Title
Channel structures for a quasi-orthogonal multiple-access communication system
Application Number
11/129140
Publication Number
8446892 (B2)
Application Date
May 13, 2005
Publication Date
May 21, 2013
Inventor
Alexei Gorokhov
San Diego
CA, US
Dhananjay Ashok Gore
San Diego
CA, US
Arak Sutivong
San Diego
CA, US
Ayman Naguib
Cupertino
CA, US
Tingfang Ji
San Diego
CA, US
Agent
Stanton Braden
Assignee
QUALCOMM Incorporated
CA, US
IPC
H04J 1/00
H04B 1/00
H04B 7/208
H04B 7/216
H04W 72/00
H04W 4/00
View Original Source