Method and system for optimizing cell-neighbor lists
First Claim
1. A method for adding a cell to a neighbor list comprising the steps of:
- selecting a potential neighbor-cell (PNC);
adding said PNC to said neighbor list;
preventing handoffs to said PNC; and
retrieving count data that establishes the number of times that said PNC receives a request for access and is considered a best candidate for adding to said neighbor list.
1 Assignment
0 Petitions
Accused Products
Abstract
A count is made of the number of mobile assisted handoff (MAHO) attempts between a service cell and a targeted cell. A count is also made of the number of times the targeted cell is considered a Best Candidate (BestCand) for handoff from the service cell. If the targeted cell is not included in the service cell'"'"'s neighbor list, a potential neighbor cell (PNC), hysteresis is added to the targeted cell to prevent handoffs to the targeted cell. The MAHO and BestCand counts are determined and if the counts meet or exceed predetermined threshold values the targeted cell is added to the list. If the targeted cell is on the neighbor list, no hysteresis is added. If the count data does not meet or exceed the threshold values, the target is removed from the list
-
Citations
20 Claims
-
1. A method for adding a cell to a neighbor list comprising the steps of:
-
selecting a potential neighbor-cell (PNC);
adding said PNC to said neighbor list;
preventing handoffs to said PNC; and
retrieving count data that establishes the number of times that said PNC receives a request for access and is considered a best candidate for adding to said neighbor list. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A base station in a wireless telecommunications system, comprising:
-
an operating support system (OSS) associated with said base station;
a database associated with said OSS for storing count data associated with said cells wherein said count data comprises mobile assisted handoff (MAHO) counts and best candidate counts;
a receiver for receiving said count data from a mobile station (MS);
a first counter for determining the number of times one of said cells in said telecommunications system is a best candidate for handoff between said one of said cells and a neighbor-cell;
a second counter for determining the number of mobile assisted handoff attempts between said one of said cells and said neighbor-cell; and
instructions within said OSS for one of removing said one of said cells from a neighbor list if said count data does not correlate with a predetermined threshold value and adding a potential neighbor-cell (PNC) to said neighbor list if said count data meets or exceeds said predetermined threshold value. - View Dependent Claims (7, 8, 9, 10, 11, 12)
-
-
13. A method for modifying a neighbor list in a cellular telecommunications network, comprising the steps of:
-
measuring data received from a mobile station;
storing and processing said data; and
adding and removing cells from said neighbor list wherein removing a cell from said neighbor list comprises the steps of;
a) selecting a neighbor-cell to pair with a service cell;
b) counting the number of times that said neighbor-cell is a best candidate for handoff between said service cell and said neighbor-cell;
c) counting the number of mobile assisted handoff (MAHO) attempts between said service cell and said neighbor-cell;
d) analyzing the count data of said best candidate count and said MAHO attempts; and
e) removing said neighbor-cell from said neighbor list if said count data does not meet or exceed a predetermined threshold value; and
wherein adding a potential neighbor-cell (PNC) to said neighbor list comprises the steps of;
a1) selecting a potential neighbor-cell (PNC) to said neighbor list;
b1) applying a hysteresis value to said PNC that prevents the possibility of a mobile station handoff to said PNC;
c1) adding said PNC to said neighbor list;
d1) counting the number of mobile assisted handoff attempts on said PNC;
e1) counting the number of times that said PNC is a best candidate for handoff;
f1) analyzing the count data of said best candidate count and said mobile assisted handoff attempts; and
g1) adjusting said hysteresis value to a level that will allow mobile station handoff to said PNC if said best candidate count data and said mobile assisted handoff attempts meet or exceed a predetermined set of threshold values. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
Specification