Coordination method between access points using unlicensed frequency band
First Claim
1. A coordination method between access points using unlicensed frequency bands, the access points comprising at least one first access point and at least one second access point belonging to a same network which including a network control node, and one or more third access point belonging to another network and cannot connect to the network control node, comprising:
- the first access point sending a coordination request to the network control node and adjusting transmission parameters thereof to increase channel access probability of the first access point which the channel access probability is the probability that the access point can access channel to transmit data at each timeslot; and
the second access point sending a feedback information to the network control node and adjusting transmission parameters thereof to decrease the channel access probability of the second access point;
wherein the network control node calculates influence of the first access point on the third access point using the increase or decrease of the channel access probability of the third access point according to the coordination request, and calculates influence of the second access point on the third access point using the increase or decrease of the channel access probability of the third access point according to the feedback information,the network control node calculates the transmission parameters of the first access point and the second access point on condition that influence of both the first and the second access point on the third access point remains unchanged,the control node send the transmission parameters to the first access point and the second access point,the first access point and the second access point adjust the transmission parameters accordingly.
1 Assignment
0 Petitions
Accused Products
Abstract
A coordination method between access points using unlicensed frequency bands and a network control node using this method are disclosed. The method includes: the first access points adjusting transmission parameters thereof to increase channel access probability of the first access points; and the second access points adjusting transmission parameters thereof to decrease the channel access probability of the second access points; wherein the degree to which channel access probability of the third access points is decreased due to adjustment of the transmission parameters of all the first access points is equivalent to the degree to which the channel access probability is increased due to adjustment of the transmission parameters of all the second access points. Through coordination between multiple access points in the same network, fair coexistence with other networks using unlicensed frequency bands can be ensured while user QoS is improved.
5 Citations
14 Claims
-
1. A coordination method between access points using unlicensed frequency bands, the access points comprising at least one first access point and at least one second access point belonging to a same network which including a network control node, and one or more third access point belonging to another network and cannot connect to the network control node, comprising:
-
the first access point sending a coordination request to the network control node and adjusting transmission parameters thereof to increase channel access probability of the first access point which the channel access probability is the probability that the access point can access channel to transmit data at each timeslot; and the second access point sending a feedback information to the network control node and adjusting transmission parameters thereof to decrease the channel access probability of the second access point; wherein the network control node calculates influence of the first access point on the third access point using the increase or decrease of the channel access probability of the third access point according to the coordination request, and calculates influence of the second access point on the third access point using the increase or decrease of the channel access probability of the third access point according to the feedback information, the network control node calculates the transmission parameters of the first access point and the second access point on condition that influence of both the first and the second access point on the third access point remains unchanged, the control node send the transmission parameters to the first access point and the second access point, the first access point and the second access point adjust the transmission parameters accordingly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A network control node coordinating with access points using unlicensed frequency bands, comprising:
-
the network control node receives a coordination request from at least one first access point of a first network; the network control node receives feedback information from at least one second access point of the first network; the network control node, based on the coordination request and the feedback information, calculates adjusted transmission parameters of the first access point and the second access point, wherein the network control node calculates influence of the first access point on the third access point using the increase or decrease of the channel access probability of the third access point according to the coordination request, and calculates influence of the second access point on the third access point using the increase or decrease of the channel access probability of the third access point according to the feedback information, the network control node calculates the transmission parameters of the first access point and the second access point on condition that influence of both the first and the second access points on the third access point remains unchanged, the network control node send the transmission parameters to the first access point and the second access point. - View Dependent Claims (11, 12, 13, 14)
-
Specification