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mtc device association scheme

A technology for user equipment and base stations, which is applied in the field of MTC equipment association solutions, and can solve problems such as difficult small cell association

Active Publication Date: 2019-05-28
QUALCOMM INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some instances, small cell coverage may be overwhelmed by macro cell coverage, and MTC devices may find it difficult to associate with small cells

Method used

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Embodiment Construction

[0051] The described embodiments are directed to methods and apparatus for wireless communication, where various association schemes can be performed for MTC devices and MTC devices can negotiate connections for MTC communication. In a heterogeneous network such as an LTE heterogeneous network, for example, an MTC device or an MTC UE may associate with a macro or small cell using a narrowband MTC channel supported by the macro or small cell. A base station associated with a macro cell or a small cell can use reserved bits in the PBCH to send information about the MTC channel (which includes the channel's spectrum and / or other attributes) to the MTC device. When the MTC device identifies or locates the MTC channel, the MTC device can communicate with the cell during a designated PRB of a frame or subframe corresponding to the MTC channel. The PRBs for one cell or base station may be different from the PRBs for another cell or base station so that the MTC communications of one c...

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Abstract

The present invention describes methods and apparatus for wireless communication in which various association schemes can be performed for machine type communication (MTC) devices. In a long-term evolution (LTE) heterogeneous network, an MTC device can associate with a macro cell or a small cell using a narrowband MTC channel supported by the macro cell or a small cell. Information about the MTC channel (including its spectrum) can be sent to MTC devices using reserved bits in the Physical Broadcast Channel (PBCH). When an MTC device recognizes an MTC channel, it can communicate with one or more cells during a frame or during a subframe. The MTC device can determine the channel metric of the cell according to the MTC communication, and can identify which cell to associate with according to the channel metric. It can be associated to the best downlink cell or the best uplink cell based on the operation profile of the MTC device.

Description

[0001] cross reference [0002] This patent application claims the priority of the following patent applications: [0003] U.S. Patent Application No. 14 / 195,620, filed March 3, 2014, by Somasundaram et al., entitled "Method and Apparatus for MTC Device Association Schemes"; [0004] U.S. Provisional Patent Application No. 61 / 772,399, filed March 4, 2013, by Somasundaram et al., entitled "Method and Apparatus for MTC Device Association Schemes"; and [0005] U.S. Provisional Patent Application No. 61 / 806,653, entitled "Method and Apparatus for MTC Device Profiles Negotiation," filed March 29, 2013, by Somasundaram et al.; [0006] Each of these applications has been assigned to the assignee of the present application. Background technique [0007] Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, broadcast, and so on. These wireless networks may be multiple-access networks capable of s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/70
CPCH04W48/12H04W4/70H04L5/0053
Inventor K·索马孙达拉姆徐浩W·陈季庭方
Owner QUALCOMM INC
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