Method for channel access and related network node
First Claim
1. A method performed by a network node in a first wireless system for channel access comprising:
- detecting one or more wireless systems coexist with the first wireless system on a channel, the channel operating on a shared spectrum;
determining a channel access scheme based on the detected one or more wireless systems, the channel access scheme being one of listen before talk (LBT) channel access scheme, listen after talk (LAT) channel access scheme, and hybrid LBT and LAT channel access scheme, wherein determining the channel access scheme comprises;
determining whether the detected one or more wireless systems perform LBT channel access scheme or LAT channel access scheme;
in response to all of the detected one or more wireless systems performing LBT channel access scheme, determining the channel access scheme as LBT channel access scheme;
in response to all of the detected one or more wireless systems performing LAT channel access scheme, determining the channel access scheme as LAT channel access scheme; and
in response to some of the detected one or more wireless systems performing LBT channel access scheme and some performing LAT channel access scheme, determining the channel access scheme as hybrid LBT and LAT channel access scheme; and
performing channel access according to the channel access scheme.
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Abstract
A method for channel access performed by a network node in a first wireless system is disclosed. In the method, the network node detects one or more wireless systems coexisted with the first wireless system on a channel, the channel operating on a shared spectrum. Then the network node determines a channel access scheme based on the detected one or more wireless systems. The channel access scheme may be one of listen before talk (LBT) channel access scheme, listen after talk (LAT) channel access scheme, and hybrid LBT and LAT channel access scheme. The network node performs channel access according to the determined channel access scheme. The related network node is also disclosed.
16 Citations
15 Claims
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1. A method performed by a network node in a first wireless system for channel access comprising:
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detecting one or more wireless systems coexist with the first wireless system on a channel, the channel operating on a shared spectrum; determining a channel access scheme based on the detected one or more wireless systems, the channel access scheme being one of listen before talk (LBT) channel access scheme, listen after talk (LAT) channel access scheme, and hybrid LBT and LAT channel access scheme, wherein determining the channel access scheme comprises; determining whether the detected one or more wireless systems perform LBT channel access scheme or LAT channel access scheme; in response to all of the detected one or more wireless systems performing LBT channel access scheme, determining the channel access scheme as LBT channel access scheme; in response to all of the detected one or more wireless systems performing LAT channel access scheme, determining the channel access scheme as LAT channel access scheme; and in response to some of the detected one or more wireless systems performing LBT channel access scheme and some performing LAT channel access scheme, determining the channel access scheme as hybrid LBT and LAT channel access scheme; and performing channel access according to the channel access scheme. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A network node in a first wireless system comprising:
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a processor; and a memory, said memory containing instructions executable by said processor, whereby said network node is operative to; detect one or more wireless systems that coexist with the first wireless system on a channel, the channel operating on a shared spectrum; determine a channel access scheme based on the detected one or more wireless systems, the channel access scheme being one of listen before talk (LBT) channel access scheme, listen after talk (LAT) channel access scheme, and hybrid LBT and LAT channel access scheme, wherein, when determining the channel access scheme, the network node is further operative to; determine whether the detected one or more wireless systems perform LBT channel access scheme or LAT channel access scheme; in response to all of the detected one or more wireless systems performing LBT channel access scheme, determine the channel access scheme as LBT channel access scheme; in response to all of the detected one or more wireless systems performing LAT channel access scheme, determine the channel access scheme as LAT channel access scheme; and in response to some of the detected one or more wireless systems performing LBT channel access scheme and some performing LAT channel access scheme, determine the channel access scheme as hybrid LBT and LAT channel access scheme; and perform channel access according to the channel access scheme. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification