Invention Grant
- Patent Title: Non-orthogonal multiple access for uplink data transmission for 5G or other next generation network
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Application No.: US16850522Application Date: 2020-04-16
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Publication No.: US10998997B2Publication Date: 2021-05-04
- Inventor: SaiRamesh Nammi , Arunabha Ghosh , Saeed Ghassemzadeh
- Applicant: AT&T Intellectual Property I, L.P.
- Applicant Address: US GA Atlanta
- Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee Address: US GA Atlanta
- Agency: Amin, Turocy & Watson, LLP
- Main IPC: H04L5/00
- IPC: H04L5/00 ; H04W72/04 ; H04J13/16 ; H04B1/707

Abstract:
The gains with non-orthogonal multiple access (NOMA) for uplink data transmissions can be high when chosen codes are orthogonal. However, when codes are non-orthogonal, the gains can be low. NOMA can be used when there is more than one mobile device using the same resources. Since orthogonal codes cannot be possible for every length, codes which have low cross-correlation properties can be used. However, when there are a large number of mobile devices using the same resources, the cross-correlation between the codes can cause interference to the mobile devices. Reducing the gains of a NOMA system can reduce the overall throughput. Thus, transmitting data on the same resources in a NOMA can occur in spite of the interference to the UEs transmitting data on the same resources. Therefore, a non-orthogonal multiple access design for a 5G network can mitigate interference.
Public/Granted literature
- US20200244385A1 NON-ORTHOGONAL MULTIPLE ACCESS FOR UPLINK DATA TRANSMISSION FOR 5G OR OTHER NEXT GENERATION NETWORK Public/Granted day:2020-07-30
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