Patent ID: 9392627
Filing Date: 2016-07-12
CPC Classification: H04B,H04J,H04L,H04W

Claim Text:
1. A method operable by a first network entity in a wireless communication network for physical cell identifier collision detection, comprising: storing (a) a unique global cell identifier of a first radio technology used by the first network entity and (b) a physical cell identifier of a second radio technology used by the first network entity, wherein the first and second radio technologies are co-located in the first network entity; serving a mobile entity; sending the unique global cell identifier to the mobile entity; receiving, by the first network entity, a second physical cell identifier of the second radio technology used by a second network entity from the second network entity via a wired network based on the unique global cell identifier, in response to the mobile entity sending a connection request to the second network entity via the first radio technology, wherein the connection request comprises the unique global cell identifier of the first radio technology for the first network entity; and detecting, by the first network entity, a physical cell identifier collision in response to the physical cell identifier and the second physical cell identifier being the same and either (a) changing the physical cell identifier or (b) instructing the second network entity to change the second physical cell identifier, wherein the detecting the physical cell identifier collision for physical cell identifiers associated with the second radio technology is based on physical cell identifier information exchange in response to the connection request by the mobile entity via the first radio access technology.