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US 9,001,674 B2Granted
Method of sensing
AssigneeOptis Cellular Technology, LLC
InventorsPeter Larsson, Yngve Selén, Mikael Prytz
Life of this patent
Estimating the term…
Abstract
Wireless nodes for use in a radio system are provided. A wireless node for use in a radio system may include a transmit and receive unit configured to request sensing information of at least one radio resource from at least one other wireless node of the radio system, and to receive the sensing information of the at least one radio resource from the at least one other wireless node of the radio system. The wireless node may include a sensing unit configured to determine whether a particular radio resource among the at least one radio resource is free to use based on the sensing information received from the at least one other wireless node. Related methods are also provided.
Claims21
A wireless node for use in a radio system, the wireless node comprising:
- a transmit and receive unit configured to:
- request sensing information of at least one radio resource from at least one other wireless node of the radio system, in response to a determination by the wireless node that a probability that the at least one radio resource is free to use is below a threshold;
- and
- receive the sensing information of the at least one radio resource from the at least one other wireless node of the radio system;
- a controller configured to determine whether a particular radio resource among the at least one radio resource is free to use based on the sensing information received from the at least one other wireless node;
- and
- a sensing request forwarding unit configured to use time and location constraints included in a received sensing request message to determine whether to forward the received sensing request message to at least one adjacent wireless node;
- wherein the probability that the at least one radio resource is free to use comprises a first probability;
- wherein the controller is configured to determine whether the particular radio resource is free to use by calculating a second probability of whether the particular radio resource is free to use based on the sensing information received from the at least one other wireless node;
- and
- wherein the second probability corresponds to a confidence level that is higher than a confidence level of the first probability.
8 more elements
A method of determining access to a radio resource in a wireless node, the method comprising:
- transmitting a sensing request message comprising a sensing instruction, the sensing request message requesting sensing information of at least one radio resource from at least one other wireless node of the radio system, in response to a determination by the wireless node that a probability that the at least one radio resource is free to use is below a threshold, and wherein the sensing request message comprises time and location constraints that limit forwarding of the sensing request message by the at least one other wireless node;
- receiving a reply to the sensing request message from the at least one other wireless node, wherein the reply comprises the sensing information acquired according to the sensing instruction;
- and
- determining whether a particular radio resource among the at least one radio resource is free to use based on the sensing information in the reply from the at least one other wireless node;
- wherein the probability that the at least one radio resource is free to use comprises a first probability;
- wherein determining whether the particular radio resource is free to use comprises calculating a second probability of whether the particular radio resource is free to use based on the sensing information received in the reply from the at least one other wireless node;
- and
- wherein the second probability corresponds to a confidence level that is higher than a confidence level of the first probability.
5 more elements
A wireless node for use in a radio system, the wireless node comprising:
- a message unit configured to request sensing, via a request message, of at least one radio resource from another wireless node of the radio system, in response to a determination by the wireless node that a probability that the at least one radio resource is free to use is below a threshold, wherein the request message comprises a sensing instruction, and further wherein the request message comprises time and location constraints that limit forwarding of the request message by another wireless node;
- and
- a controller configured to receive sensing of at least one radio resource from another wireless node of the radio system, and to determine if a particular radio resource is free to use based on collective sensing information acquired from at least one other wireless node according to the sensing instruction;
- wherein the probability that the at least one radio resource is free to use comprises a first probability;
- wherein the controller is configured to determine whether the particular radio resource is free to use by calculating a second probability of whether the particular radio resource is free to use based on the collective sensing information received from the at least one other wireless node;
- and
- wherein the second probability corresponds to a confidence level that is higher than a confidence level of the first probability.
4 more elements
Dependencies are inferred from the claim text.