Broadcast and paging channels for machine type communications

Abstract

Methods, systems, and devices for facilitating machine type communications in wireless communications systems are described. MTC devices with limited link budget can be supported. The MTC physical broadcast channel can be used for machine type communication. The MTC physical broadcast channel may be sent on one or more subframes different from the regular physical broadcast channel. The payload for the MTC physical broadcast channel can be reduced. The MTC physical broadcast channel may also be used to indicate the presence of pages and / or to indicate changes in system information. Some embodiments use one or more MTC-specific system information blocks. These MTC-specific system information blocks may combine and / or simplify multiple system information blocks. The location of the MTC system information blocks may be predetermined, or information on their location may be transmitted through the MTC physical broadcast channel. The enhanced paging channel may be used to indicate system information updates.

Description

[0001] cross reference [0002] This patent application claims the benefit of co-pending U.S. Patent Application Nos. 14 / 150,270, filed January 8, 2014, entitled "Broadcast and PagingChannels for Machine Type Communication," and filed January 14, 2013, entitled " Methods, Systems, and Devices for Broadcast and Paging Channels for Machine Type Communication" has priority to co-pending U.S. Provisional Patent Application No. 61 / 752,339, each of which has been assigned to the assignee of the present application person, it is hereby expressly incorporated by reference. Background technique [0003] Machine-to-machine (M2M) communication or machine type communication (MTC) is a term that can be used to refer to data communication technologies that allow automated devices to communicate with each other without human intervention. For example, M2M and / or MTC refer to communications from devices that integrate sensors or meters that measure or capture information and relay that infor...

AI Technical Summary

Problems solved by technology

However, broadcast channels, such as physical broadcast channels and system information transmissions, may also require coverage enhancement

In addition, most of the system information normally sent over the broadcast channel may not be needed for MTC operation

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