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US 10,708,025 B2Granted
Managing reference signals in a wireless communication network
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsUmut Ugurlu, Rui Fan, Qingyu Miao, Edgar Ramos, Hai Wang
Life of this patent
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Abstract
There is provided a method for selectively enabling periodic transmission of reference signals in a wireless communication network. The method comprises obtaining (S1) information of user activity in one or more beams, cells or sector, and performing (S2) at least one of activating and deactivating, for at least one beam, cell or sector, periodic transmission of reference signals based on the obtained information.
Claims13
A method performed by a network device of a wireless communication network, the method comprising:
- selectively turning periodic transmission of a Mobility Reference Signal (MRS) on or off for a given beam direction, among a plurality of beam directions used by a radio network node of the wireless communication network for providing radio coverage to user equipments in corresponding beam coverage areas;
- wherein the method includes turning off the periodic MRS transmission for the given beam direction in response to determining the absence of user activity in the given beam direction and determining the absence of user activity in any of one or more related beam directions, wherein each related beam direction is related to the given beam direction by having a corresponding beam coverage area neighboring the corresponding beam coverage area of the given beam direction;
- wherein the method further includes turning on the periodic MRS transmission for the given beam direction in response to either of determining the presence of user activity in the given beam direction or determining the presence of user activity in any of the one or more related beam directions;
- and
- wherein determining the presence or absence of user activity for each related beam direction that is associated with a neighboring radio network node is based on signaling transmitted by the neighboring radio network node that indicates a user-activity detection status for the each related beam direction, as determined by the neighboring radio network node.
2 more elements
A network device configured for operation in a wireless communication network, the network device comprising:
- memory storing program instructions;
- and
- processing circuitry that, based on executing the stored program instructions, is configured to:
- selectively turn periodic transmission of a Mobility Reference Signal (MRS) on or off for a given beam direction, among a plurality of beam directions used by a radio network node of the wireless communication network for providing radio coverage to user equipments in corresponding beam coverage areas;
- wherein the processing circuitry is configured to turn off the periodic MRS transmission for the given beam direction in response to determining the absence of user activity in the given beam direction and determining the absence of user activity in any of one or more related beam directions, wherein each related beam direction is related to the given beam direction by having a corresponding beam coverage area neighboring the corresponding beam coverage area of the given beam direction;
- wherein the processing circuitry is configured to turn on the periodic MRS transmission for the given beam direction in response to either of determining the presence of user activity in the given beam direction or determining the presence of user activity in any of the one or more related beam directions;
- and
- wherein the processing circuitry is configured to determine the presence or absence of user activity for each related beam direction that is associated with a neighboring radio network node from signaling from the neighboring radio network node that indicates a user-activity detection status for the each related beam direction, as determined by the neighboring radio network node.
5 more elements
Dependencies are inferred from the claim text.