METHOD FOR ASSIGNING PRS MUTING PATTERNS FOR RSTD MEASUREMENT ACQUISITION

摘要

One or more sequences of binary values may be generated based on a length L and a duty cycle D, wherein duty cycle D denotes a percentage of a number of bits of value one in length L. Then, based on an identity of a cell, a sequence may be selected for use by a base station in muting its transmission of a positioning signal. The sequence which is selected may be used directly in muting with no change therein, or may be elongated followed by use of an elongated sequence in muting. When specific occasions are muted in the positioning signal, a mobile device may measure times of arrival of other positioning signals that are not muted. Two such measurements of arrival times may be used to compute a difference there between, for use as a difference measurement in a procedure to determine a location of the mobile device.

主权项

1. A method to coordinate transmission of a plurality of positioning signals, the method comprising:
obtaining a length and a duty cycle corresponding to a plurality of positioning occasions mutable in a transmission schedule of a positioning signal; obtaining a plurality of identities of a plurality of base stations available to transmit the plurality of positioning signals; determining, by one or more computers, one or more muting characteristics, based at least in part on the length, the duty cycle, and at least one identity in the plurality of identities; and transmitting the one or more muting characteristics at least to a base station identified by said at least one identity.