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Uplink based forward mobility

A radio link and source cell technology, applied in connection management, electrical components, radio transmission systems, etc., can solve problems such as quality degradation of source cells

Pending Publication Date: 2021-06-25
IDAC HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This may be due to the degraded quality of the source cell

Method used

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  • Uplink based forward mobility
  • Uplink based forward mobility
  • Uplink based forward mobility

Examples

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Embodiment Construction

[0015] Figure 1A is a diagram illustrating an example communication system 100 in which one or more disclosed embodiments may be implemented. Communication system 100 may be a multiple-access system that provides content, such as voice, data, video, messaging, broadcast, etc., to multiple wireless users. Communication system 100 may enable multiple wireless users to access such content by sharing system resources, including wireless bandwidth. For example, communication system 100 may employ one or more channel access methods such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal FDMA (OFDMA), Single Carrier FDMA (SC-FDMA), zero-tail unique word DFT-extended OFDM (ZT UW DTS-s OFDM), unique word OFDM (UW-OFDM), resource block filtering OFDM, filter bank multi-carrier (FBMC), etc.

[0016] like Figure 1A As shown, communication system 100 may include wireless transmit / receive units (WTRUs) 102a...

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Abstract

A wireless transmit / receive unit (WTRU) may communicate with a serving cell and monitor suitable non-serving cell(s) may be monitored. Uplink-based forward mobility may be performed. The WTRU may transmit control signaling that may indicate an ordered list of candidate target cell(s) using resources of the source cell. A resume procedure towards a non-serving cell may be initiated while in connected state with serving cell. Upon a successful resume in non-serving cell, the connection may be disconnected from the serving cell.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Patent Application No. 62 / 736,110, filed September 25, 2018, and U.S. Provisional Patent Application No. 62 / 804,327, filed December 12, 2019; the contents of which are hereby incorporated by reference in their entirety Incorporated into this article. Background technique [0003] Mobile communication using wireless communication continues to develop. The fifth generation may be called 5G or New Radio (NR). The previous generation of mobile communication may be, for example, the fourth generation (4G) Long Term Evolution (LTE). In wireless systems such as 5G, the radio link between a wireless transmit / receive unit (WTRU) and the source cell may become unreliable during mobility events. This may be due to a degradation in the quality of the source cell. And it may be desirable to perform mobility (eg handover) before the radio link with the source cell becomes unreliable. Cont...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W36/18H04W36/36
CPCH04W36/18H04W36/322H04W36/00692H04W36/362H04W36/00698H04W76/19H04W76/30H04W36/305H04B7/0695H04W36/32H04W36/36
Inventor 瑜伽士瓦尔·丁努吉斯伦·佩尔蒂埃穆纳·哈吉尔
Owner IDAC HLDG INC