17999350. SUBCHANNEL-BASED LISTEN BEFORE TALK FOR UNLICENSED CHANNEL ACCESS simplified abstract (QUALCOMM Incorporated)
Contents
SUBCHANNEL-BASED LISTEN BEFORE TALK FOR UNLICENSED CHANNEL ACCESS
Organization Name
Inventor(s)
Stelios Stefanatos of San Diego CA (US)
Shuanshuan Wu of San Diego CA (US)
Peter Gaal of San Diego CA (US)
Xiaoxia Zhang of San Diego CA (US)
Arthur Gubeskys of San Diego CA (US)
Juan Montojo of San Diego CA (US)
SUBCHANNEL-BASED LISTEN BEFORE TALK FOR UNLICENSED CHANNEL ACCESS - A simplified explanation of the abstract
This abstract first appeared for US patent application 17999350 titled 'SUBCHANNEL-BASED LISTEN BEFORE TALK FOR UNLICENSED CHANNEL ACCESS
Simplified Explanation
The abstract describes a technique for subchannel-based listen before talk (LBT) in wireless communication systems. The method involves the following steps:
- Receiving transmissions indicating allocated and unallocated subchannels in a frequency band during a specific time period.
- Sensing the unallocated subchannels for a portion of the time period before a second time period.
- Transmitting a signal within the frequency band during the second time period if the energy sensed in the unallocated subchannels is below a certain threshold.
Potential applications of this technology:
- Wireless communication systems that require efficient utilization of frequency bands.
- Internet of Things (IoT) devices that need to share frequency bands without causing interference.
- Cellular networks where multiple users need to access the same frequency band.
Problems solved by this technology:
- Efficient allocation of subchannels in a frequency band to avoid interference.
- Ensuring fair and equitable access to frequency bands for multiple users.
- Minimizing collisions and maximizing the utilization of available resources.
Benefits of this technology:
- Improved spectrum efficiency by dynamically allocating subchannels based on energy sensing.
- Reduced interference and improved coexistence among multiple users in the same frequency band.
- Enhanced reliability and performance of wireless communication systems.
Original Abstract Submitted
Certain aspects of the present disclosure provide techniques for subchannel-based listen before talk (LBT). An example method that may be performed by a user equipment (UE) includes receiving one or more transmissions indicating one or more allocated subchannels of a frequency band that are allocated during a first time period, the frequency band comprising the one or more allocated subchannels and one or more unallocated subchannels during the first time period; sensing the one or more unallocated subchannels for at least a portion of the first time period prior to a second time period; and transmitting a signal within the frequency band during the second time period based on energy sensed for the one or more unallocated subchannels being less than a threshold.
