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Configuration and signaling for ul noma operations

a noma operation and configuration technology, applied in the field of non-orthogonal multiple access (noma), can solve problems such as interference between transmissions using overlapping resources

Pending Publication Date: 2021-02-11
INTERDIGITAL PATENT HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes methods and systems for switching between different modes of a user equipment (UE). The UE can be switched between Orthogonal Multiple Access (OMA) and Non-Orthogonal Multiple Access (NOMA) modes by a gNB using different signals and schemes. The switch between modes can be requested by the UE and can be based on the gNB's indication or the UE's rules. The technical effects of this invention include improving the flexibility and efficiency of transitioning between different UE modes and enhancing the overall performance of wireless communication systems.

Problems solved by technology

For non-orthogonal multiple access, there may be interference between transmissions using overlapping resources.

Method used

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  • Configuration and signaling for ul noma operations
  • Configuration and signaling for ul noma operations
  • Configuration and signaling for ul noma operations

Examples

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Embodiment Construction

1. Example Communication System and Networks

[0035]The 3rd Generation Partnership Project (3GPP) develops technical standards for cellular telecommunications network technologies, including radio access, the core transport network, and service capabilities—including work on codecs, security, and quality of service. Recent radio access technology (RAT) standards include WCDMA (commonly referred as 3G), LTE (commonly referred as 4G), LTE-Advanced standards, and New Radio (NR), which is also referred to as “5G”. 3GPP NR standards development is expected to continue and include the definition of next generation radio access technology (new RAT), which is expected to include the provision of new flexible radio access below 7 GHz, and the provision of new ultra-mobile broadband radio access above 7 GHz. The flexible radio access is expected to consist of a new, non-backwards compatible radio access in new spectrum below 7 GHz, and it is expected to include different operating modes that ma...

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Abstract

Switching between Orthogonal Multiple Access (OMA) and Non-Orthogonal Multiple Access (NOMA) modes of a user equipment (UE) can be determined and indicated by a gNB to a UE at an RRC connected state using one or more of the following schemes: at an RRC (Radio Resource Control) layer with an RRC configuration message, at a MAC (Medium Access Control) layer with MAC CE (MAC control element) signaling, at a PHY (Physical) layer with DCI (Downlink Control Information) signaling, jointly with RRC configuration and DCI signaling, and / or jointly with RRC configuration and MAC CE signaling. The OMA or NOMA mode that the UE operates after the transition may be requested by the UE, indicated by the gNB, and / or may be based on one or more rules for OMA-NOMA switching.

Description

BACKGROUND[0001]In LTE, a Non-Orthogonal Multiple Access (NOMA) application is introduced for downlink (DL). The DL NOMA was proposed to 3GPP LTE Rel-13 and a new study item under the name of “downlink multiuser superposition transmission (MUST)” was approved. Later in Rel-14, a work item was established to specify the necessary mechanisms to enable LTE to support downlink intra-cell multi-user superposition transmission for data channels with assistance information from a serving BS (Base Station) to a UE regarding its experienced intra-cell interference.SUMMARY[0002]Disclosed herein are methods and systems for switching between Orthogonal Multiple Access (OMA) and Non-Orthogonal Multiple Access (NOMA) modes of a user equipment (UE). Switching between the OMA and NOMA modes can be determined and indicated by a gNB to a UE at an RRC connected state using one or more of the following schemes: at an RRC (Radio Resource Control) layer with an RRC configuration message, at a MAC (Medium...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04W76/27H04W72/04H04W80/02H04L5/00H04W76/19H04L1/16
CPCH04W76/27H04W72/042H04L1/1664H04L5/0005H04W76/19H04W80/02H04L5/0007H04L5/0016H04L5/0062H04J13/00H04J11/00H04L5/0044H04L5/0092H04W72/23
Inventor LI, YIFANTSAI, ALLAN Y.IYER, LAKSHMI R.LI, QINGADJAKPLE, PASCAL M.AWADIN, MOHAMEDMURRAY, JOSEPH M.ZHANG, GUODONG
Owner INTERDIGITAL PATENT HLDG INC
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