Method and apparatus for muting signaling in a wireless communication network
In one aspect, the present invention provides a simple method of signaling reference signal muting information to receiving radio equipment, such as items of user equipment (UEs). The reference signals may be positioning reference signals and/or cell-specific reference signals, for example. In one or more embodiments, the present invention proposes a general solution whereby the receiving radio equipment is informed not only on whether muting is used in general in a cell, but also the particular timing and formatting of such muting. Further, the contemplated method provides for the use of dynamic muting patterns, and thus avoids the need for statically defined muting patterns, and provides for coordinated muting control, across two or more network cells. In at least one embodiment, static or less dynamic aspects of the muting configuration is signaled via higher-layer signaling, while lower-layer signaling is used to signal more dynamic aspects of the muting configuration.
1. A method in a radio apparatus of controlling measurement of positioning reference signals that are transmitted by a wireless communication network at recurring positioning occasions, said method comprising:
receiving signaling from the wireless communication network that conveys a muting occasion parameter indicating positioning occasions to which muting applies, wherein each of the positioning occasions comprises two or more consecutive subframes and the positioning occasions recur at a pre-set periodicity; and
controlling positioning reference signal measurement by the radio apparatus, in accordance with the received muting occasion parameter.
2. The method of claim 1 , wherein the muting occasion parameter indicates whether muting will be used in an indicated or known muting occasion.
3. A radio apparatus comprising:
a receiver configured to receive positioning reference signals transmitted from a wireless communication network at recurring positioning occasions, and to receive signaling from the wireless communication network that conveys the following muting parameter that defines a muting configuration used by the wireless communication network for muting the positioning reference signals in one or more cells of the wireless communication network, said muting parameter including a muting occasion parameter indicating positioning occasions to which muting applies, wherein each of the positioning occasions comprises two or more consecutive subframes and the positioning occasions recur at a pre-set periodicity; and
one or more processing circuits that are operatively associated with the receiver and are configured to control positioning reference signal measurement by the radio apparatus, in accordance with the received muting parameter.
4. The radio apparatus of claim 3 , wherein the muting occasion parameter indicates whether muting will be used in an indicated or known muting occasion.