| 摘要 |
in a multi-carrier wireless communication network (10), positioning-aware switching (106, 208) of a primary carrier from a first carrier to a second carrier for a UE (12) is constrained to enable one or more positioning measurements (204) to be performed. Either the selection (104) of the second carrier, the timing of switching (106) from the first to the second carrier, or both, are constrained to enable and enhance the positioning performance. The constraints may be operative at a serving node (32) of the network (10), at a UE (12), or both. Further constraints may be applied to the network (10) to enhance positioning performance. Carrier switching (106, 208) may be across Radio Access Technology, RAT (40, 50), and the positioning constraints may include configuring or re-configuring a device to perform positioning measurements (204) in measurement gaps (e.g., on a secondary carrier in LTE systems when Positioning Reference Signals are not transmitted on the primary carrier). |
