Systems and methods for resolving a physical cell identity confusion in a heterogeneous network
Embodiment of the present disclosure relates to resolving physical cell identity confusion in heterogenous networks. In one embodiment, a method is disclosed, comprising: receiving a handover request including a first physical cell identity of a first target base station [ 120 A]; comparing the first physical cell identity with a neighbour list comprising the first physical cell identity of the first target base station [ 120 A] and a second physical cell identity of a second target base station [ 120 B]; transmitting an identifier of an access point [ 130 A, 130 B, 130 C, 130 D] to the first target base station base stations [ 120 A] and the second target base station [ 120 B]; and analysing response messages received from each of the first target base stations [ 120 A] and the second target base station [ 120 B] for performing a handover from a serving base station [ 102 ] to one of the first target base station [ 120 A] and the second target base station [ 120 B].
1. A method for resolving physical cell identity confusion, the method being performed by a serving base station, the method comprising:
receiving a handover request from a user equipment, wherein the handover request includes a first physical cell identity of a first target base station, and the user equipment is connected to the serving base station;
comparing the first physical cell identity with a neighbour list of the serving base station,
wherein the neighbour list comprises the first physical cell identity of the first target base station and a second physical cell identity of a second target base station;
receiving at least one identifier of at least one access point from the user equipment;
transmitting the at least one identifier to the first target base station and the second target base station;
receiving a response message from each of the first target base station and the second target base station after transmitting the at least one identifier,
wherein the response message comprises one of a positive response and a negative response based on a comparison of the at least one identifier; and
analysing said response message for performing a handover from the serving base station to one of the first target base station and the second target base station based on the positive response and the negative response received from the first target base station and the second target base station.
2. The method as claimed in claim 1 , wherein the at least one access point is connected to one of the first target base station and the second target base station.
3. The method as claimed in claim 1 , wherein the at least one identifier comprises at least one of a basic service set identifier, a heterogeneous extended service set identifier, or an extended service set identifier of the at least one access point.
4. The method as claimed in claim 1 , further comprising:
transmitting at least one of a detection threshold, a freshness interval information, a radio channel information, and a scanning interval information of the at least one access point to the user equipment for detecting at least one identifier.
5. The method as claimed in claim 1 , wherein receiving the positive response from at least one of the first target base station and the second target base station comprises:
receiving the response message including the at least one identifier from at least one of the first target base station and the second target base station, wherein the at least one identifier matches with at least one identifier included in one of the first neighbour list of the first target base station and the at least one identifier included in the second neighbour list of the second target base station.
6. The method as claimed in claim 1 , wherein receiving the negative response from at least one of the first target base station and the second target base station comprises:
receiving the response message excluding the at least one identifier from at least one of the first target base station and the second target base station wherein the at least one identifier is absent from at least one of the first neighbour list of the first target base station and the second neighbour list of the second target base station.
7. The method as claimed in claim 1 further comprising:
transmitting at least one of a detection threshold, a freshness interval information, a radio channel information, and a scanning interval information of the at least one access point to the user equipment for detecting at least one identifier.
8. The method as claimed in claim 1 , wherein the serving base station receives the positive response from at least one of the first target base station and the second target base station comprising:
the serving base station receiving the response message including the at least one identifier from at least one of the first target base station and the second target base station, wherein the at least one identifier matches with the at least one identifier included in the first neighbour list of the first target base station or at least one identifier included in the second neighbour list of the second target base station.
9. The method as claimed in claim 1 wherein the serving base station receives the negative response from at least one of the first target base station and the second target base station comprising:
the serving base station receiving the response message excluding the at least one identifier from at least one of the first target base station and the second target base station, wherein in an event the at least one identifier is absent from at least one of the first neighbour list of the first target base station and the second neighbour list of the second target base station.
10. A serving base station system for resolving physical cell identity confusion, the serving base station comprising:
receive a handover request from a user equipment,
wherein
the handover request includes a first physical cell identity of a first target base station, and
the user equipment is connected to the serving base station,
receive at least one identifier of at least one access point from the user equipment,
transmit the at least one identifier to the first target base station and a second target base station,
receive a response message from each of the first target base station and the second target base station after transmitting the at least one Identifier, wherein
the response message comprises one of a positive response and a negative response based on a comparison of the at least one identifier; and
an evaluation module configured to:
compare the first physical cell identity with a neighbour list of the serving base station, wherein
the neighbour list comprises the first physical cell identity of the first target base station and a second physical cell identity of the second target base station; and
analyse the response message for performing a handover from the serving base station to one of the first target base station and the second target base station based on the positive response and the negative response received from the first target base station and the second target base station.