Message-based exchange of access point pilot signature indicators

摘要

An access point is identified based on a plurality of pilot signatures. Here, in addition to transmitting a pilot signal that is encoded (e.g., spread/scrambled) using a particular pilot signature, an access point transmits a message that includes at least one indication of at least one other pilot signature. For example, an access point may use one PN offset to generate a pilot signal and transmit a message that identifies at least one other PN offset. An access terminal that receives the pilot signal and the message may then generate a pilot report that identifies all of these pilot signatures. Upon receiving a handover message including this pilot-related information, a target network entity with knowledge of the pilot signatures assigned to that access point may then accurately identify the access point as a target for handover of the access terminal.

主权项

1. A method of communication, comprising:
receiving a message from an access point at an access terminal, wherein the message includes at least one pilot signature indicator indicating one or more second pilot signatures associated with the access point that are not used for pilot signal scrambling by the access point; receiving a pilot signal from the access point at the access terminal scrambled using a first pilot signature different from the one or more second pilot signatures indicated by the at least one pilot signature indicator; generating a pilot report that includes respective different pilot signal strength indicators for the pilot signal and for the one or more second pilot signatures indicated by the at least one pilot signature indicator; transmitting the pilot report to a second access point; and handing over to the access point, wherein a femto gateway identifies the access point based on information received from the second access point and information received from a femto management system, wherein the information received from the second access point is based on the pilot report, and wherein the information received from the femto management system comprises femto cell pilot signature allocations.