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Techniques for enabling asynchronous transmissions in an unlicensed radio frequency spectrum band

Active Publication Date: 2016-10-12
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A mobile device may not be able to receive or transmit data on a channel in an unlicensed radio frequency band if the mobile device is unable to receive a CET from the base station associated with the channel in the unlicensed radio frequency band

Method used

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  • Techniques for enabling asynchronous transmissions in an unlicensed radio frequency spectrum band
  • Techniques for enabling asynchronous transmissions in an unlicensed radio frequency spectrum band
  • Techniques for enabling asynchronous transmissions in an unlicensed radio frequency spectrum band

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Embodiment Construction

[0033] Describes where unlicensed radio frequency bands, such as Wi-Fi radio frequency bands, for which devices compete for access because the radio frequency bands are available for unlicensed use, can be used to conduct A technology for cellular communication such as Long Term Evolution (LTE) communication or LTE-Advanced (LTE-A) communication.

[0034] As data traffic continues to grow in cellular networks, offloading at least some of the data traffic to unlicensed radio frequency bands may offer a challenge to cellular operators (e.g., operators of public land mobile networks (PLMNs) or harmonized defined cellular networks such as LTE / LTE-A network) provides an opportunity for enhanced data transmission capacity. Prior to gaining access to the unlicensed radio frequency band and transmitting data thereon, in some examples, the transmitting device may perform an LBT procedure to gain access to the unlicensed radio frequency band. Such an LBT process may include performing...

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Abstract

Techniques are described for wireless communication. One method includes monitoring, by a first base station of a first operator, for clear channel assessment (CCA) exempt transmission (CET) timing information of a second base station of a second operator; identifying transmission timings of CETs of the second base station of the second operator based at least in part on the monitoring; and discontinuing transmissions of the first base station of the first operator during the transmission timings of the CETs of the second base station of the second operator. Transmissions of the second base station of the second operator may be asynchronous to transmissions of the first base station of the first operator.

Description

[0001] cross reference [0002] This patent application claims U.S. Patent Application No. 14 / 553,789, filed November 25, 2014, entitled "Techniques for Enabling Asynchronous Transmissions in an Unlicensed Radio Frequency Spectrum Band," by Damnjanovic et al. Priority to U.S. Provisional Patent Application No. 61 / 943,755, filed February 24, entitled "Techniques for Enabling Asynchronous Transmissions in an Unlicensed Radio Frequency SpectrumBand"; each of which is assigned to its assignee. technical field [0003] The present disclosure relates, for example, to wireless communication systems, and more particularly, to techniques for enabling asynchronous transmissions (eg, asynchronous clear channel assessment (CCA)-free transmission (CET)) in unlicensed radio frequency bands. Background technique [0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W16/14
CPCH04W76/14H04W72/27H04W16/14H04W74/08H04W36/22H04W76/28
Inventor A·达姆尼亚诺维奇W·陈N·布尚P·加尔K·K·索马孙达拉姆骆涛魏永斌D·P·马拉蒂徐浩季庭方
Owner QUALCOMM INC