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Multiple access techniques in a cellular network

A communication network, wireless cellular technology, applied in the field of multiple access

Pending Publication Date: 2020-12-22
JRD COMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Similarly, the number of devices may be much larger than the available number of MA signatures, thus preventing unique identification of UEs

Method used

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  • Multiple access techniques in a cellular network
  • Multiple access techniques in a cellular network
  • Multiple access techniques in a cellular network

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Embodiment Construction

[0043] The embodiments described in this application are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0044] As mentioned above, overhead issues may prevent the use of grant-based UL NOMA transmission, especially for devices using mMTC type services, thereby limiting the base station's ability to select and configure UL transmission parameters. Furthermore, each MA signature can be used by multiple UEs, preventing identification of UEs based on the MA signature.

[0045] One way to identify the UE is to include the UE's xRNTI or UE ID in the UCI of the PUSCH transmission multiplex. Although this can directly identify the UE, it may require 16 or 24 bits of overhead on a payload of 10-150 bytes. In addition, these bits have to be coded in a robust and fixed MCS, t...

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Abstract

Disclosed are a method and apparatus for non-orthogonal multiple access. An UE has control over selection of transmission parameters for uplink transmissions to reduce control overhead compared to network retaining control. Uplink transmissions may include an indication of parameters of the transmission, for example, modulation coding scheme.

Description

technical field [0001] The present invention relates to the multiple access technology in the cellular network, in particular to the non-orthogonal multiple access (non-orthogonal multiple access) of the uplink channel in the cellular network. Background technique [0002] Wireless communication systems, such as third generation (3G) mobile telephony standards and technologies are well known. 3G standards and technologies are developed by the Third Generation Partnership Project (3GPP, Third Generation Partnership Project). Third-generation wireless communications were developed to support macrocellular mobile phone communications. Communication systems and networks are moving towards broadband mobile systems. [0003] In a cellular wireless communication system, a user equipment (UE, User Equipment) is connected to a radio access network (RAN, Radio Access Network) through a wireless link. The RAN includes: a group of base stations, which provide radio links to UEs locat...

Claims

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Application Information

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IPC IPC(8): H04W72/04
CPCH04L1/0003H04L1/0009H04W72/02H04W74/08
Inventor 布鲁诺·杰裘克斯欧麦尔·萨利姆
Owner JRD COMM INC
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