Load balancing in wireless communication network
First Claim
1. Method of load balancing in a wireless communication network, said wireless communication network comprising at least one subscriber terminal (T1, T2, T2) adapted to establish and perform a wireless communication connection in said wireless communication network, a plurality of access points (AP1, AP2, AP3) adapted to control said wireless communication connection of said at least one subscriber terminal and to exchange information with said at least one subscriber terminal, wherein one of said plurality of access points is associated with said at least one subscriber terminal, and a load control device (21;
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110) located outside of said subscriber terminal, said load control device being adapted to process information related to a load in said wireless communication network and to instruct roaming of said subscriber terminal from said associated one of said plurality of access points to another one of said plurality of access points, said method comprising the steps of receiving, in said subscriber terminal, access point status information (APST) determined in said plurality of access points (S10;
S110), determining communication status information related to said plurality of access points (S20;
S120), and processing (S20;
S120) said received access point status information and said communication status information in order to obtain roaming support information (RSUP), processing (S40;
S160), in said load control device, said roaming support information by an access point related load based roaming analysis and deciding (S50;
S170), on the basis of a result of said access point related load based roaming analysis, whether said subscriber terminal is to be associated with another one of said plurality of access points, and if so, initializing (S60;
S180) roaming of said subscriber terminal to said another one of said plurality of access points in said wireless communication network.
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Accused Products
Abstract
For load balancing in a wireless communication network comprising at least one subscriber terminal (T1, T2, T2) and a plurality of access points (AP1, AP2, AP3), a load control device (21; 110) is used which is located outside of said subscriber terminal, wherein said load control device is adapted to process information related to a load in said wireless communication network and to instruct roaming of said subscriber terminal from an associated access point to another one of said plurality of access points. Access point status information (APST) determined in said plurality of access points (S10; S110) is received and communication status information related to said plurality of access points (S20; S120) is determined. The subscriber terminal processes (S20; S120) these information into roaming support information (RSUP), which are in turn processed (S40; S160) in said load control device an access point related load based roaming analysis. On this basis, it is decided (S50; S170) by the load control device, whether said subscriber terminal is to be associated with another one of said plurality of access points.
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Citations
46 Claims
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1. Method of load balancing in a wireless communication network, said wireless communication network comprising
at least one subscriber terminal (T1, T2, T2) adapted to establish and perform a wireless communication connection in said wireless communication network, a plurality of access points (AP1, AP2, AP3) adapted to control said wireless communication connection of said at least one subscriber terminal and to exchange information with said at least one subscriber terminal, wherein one of said plurality of access points is associated with said at least one subscriber terminal, and a load control device (21; -
110) located outside of said subscriber terminal, said load control device being adapted to process information related to a load in said wireless communication network and to instruct roaming of said subscriber terminal from said associated one of said plurality of access points to another one of said plurality of access points,
said method comprising the steps of receiving, in said subscriber terminal, access point status information (APST) determined in said plurality of access points (S10;
S110), determining communication status information related to said plurality of access points (S20;
S120), and processing (S20;
S120) said received access point status information and said communication status information in order to obtain roaming support information (RSUP),processing (S40;
S160), in said load control device, said roaming support information by an access point related load based roaming analysis and deciding (S50;
S170), on the basis of a result of said access point related load based roaming analysis, whether said subscriber terminal is to be associated with another one of said plurality of access points, and if so,initializing (S60;
S180) roaming of said subscriber terminal to said another one of said plurality of access points in said wireless communication network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 43, 44, 45, 46)
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110) located outside of said subscriber terminal, said load control device being adapted to process information related to a load in said wireless communication network and to instruct roaming of said subscriber terminal from said associated one of said plurality of access points to another one of said plurality of access points,
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14. System for load balancing in a wireless communication network, said wireless communication network comprising
at least one subscriber terminal (T1, T2, T2) adapted to establish and perform a wireless communication connection in said wireless communication network, and a plurality of access points (AP1, AP2, AP3) adapted to control said wireless communication connection of said at least one subscriber terminal and to exchange information with said at least one subscriber terminal, wherein one of said plurality of access points is associated with said at least one subscriber terminal, said system comprising access point load status monitoring means (11, 12, 13; -
111, 112, 113) located in each one of said plurality of access points and adapted to measure a traffic load of an access point and to transmit access point status information (APST),
roaming support means (30;
300) located in said subscriber terminal and adapted to receive said access point status information from said plurality of access points, to determine communication status information related to said plurality of access points, to process said received access point status information and said communication status information in order to obtain roaming support information (RSUP), and to transmit said roaming support information, anda load control device (21;
110) located outside of said subscriber terminal, said load control device being adapted to process said roaming support information by an access point related load based roaming analysis, to decide, on the basis of a result of said access point related load based roaming analysis, whether said subscriber terminal is to be associated with another one of said plurality of access points, and to initialize roaming of said subscriber terminal from said associated one to said another one of said plurality of access points in said wireless communication network. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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111, 112, 113) located in each one of said plurality of access points and adapted to measure a traffic load of an access point and to transmit access point status information (APST),
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27. Load control device (21;
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110) for load balancing in a wireless communication network, said wireless communication network comprising
at least one subscriber terminal (T1, T2, T2) adapted to establish and perform a wireless communication connection in said wireless communication network, and a plurality of access points (AP1, AP2, AP3) adapted to control said wireless communication connection of said at least one subscriber terminal and to exchange information with said at least one subscriber terminal, wherein one of said plurality of access points is associated with said at least one subscriber terminal, wherein said load control device is located outside of said subscriber terminal and adapted to process roaming support information (RSUP), received from a subscriber terminal and derived by said subscriber terminal from access point status information (APST) of said plurality of access points, by an access point related load based roaming analysis, to decide, on the basis of a result of said access point related load based roaming analysis, whether said subscriber terminal is to be associated with another one of said plurality of access points, and to initialize roaming of said subscriber terminal from said associated one to said another one of said plurality of access points in said wireless communication network. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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110) for load balancing in a wireless communication network, said wireless communication network comprising
Specification