Pilot signal assignment
AssigneeTelefonaktiebolagget LM Ericsson (Publ)
InventorsNafiseh Shariati, Hamed Farhadi, Niklas Jaldén
Life of this patent
Estimating the term…
Abstract
The disclosure provides methods, a base station and network nodes relating to the assignment of pilot signals to wireless devices. One aspect provides a method including obtaining grouping information grouping one or more of the plurality of wireless devices together based at least in part on clustering information corresponding to each of the plurality of wireless devices and according to one or more clustering criterion, assigning at least one pilot signal to the one or more wireless devices based on the grouping information and transmitting the at least one pilot signal.
Claims18
A method performed by a base station serving a plurality of wireless devices, the method comprising:
- sending a request for grouping information indicating one or more clustering criterion and receiving the grouping information in response to the request;
- grouping one or more of the plurality of wireless devices together based at least in part on clustering information corresponding to each of the plurality of wireless devices and according to the one or more clustering criterion, wherein the grouping information comprises each one of the wireless devices in a group being distinct from each other according to the associated clustering information and the one or more clustering criterion, and wherein the one or more clustering criterion comprises a spatial relationship between each of the one or more wireless devices and the base station;
- assigning at least one pilot signal to the one or more wireless devices based on the grouping information, wherein at least two of the one of more wireless devices in said group are assigned the same pilot signal;
- and transmitting the at least one pilot signal.
A method performed by a system for providing pilot signals to a plurality of wireless devices, the method comprising:
- receiving a request for grouping information indicating one or more clustering criterion and sending the grouping information in response to the request;
- obtaining clustering information corresponding to one or more wireless devices, wherein the one or more clustering information comprises a spatial relationship between each of the one or more wireless devices and a serving base station;
- grouping the one or more wireless devices into one or more groups based on the clustering information and according to the one or more clustering criterion, wherein the grouping comprises each one of the wireless devices in a group being distinct from each other according to the one or more clustering criterion;
- and providing the grouping information to the serving base station, wherein the grouping information corresponds to the grouping of the one or more wireless devices;
- assigning, at least one pilot signal to the one or more wireless devices based on the grouping information, wherein at least two of the one of more wireless devices in said group are assigned the same pilot signal;
- and transmitting the at least one pilot signal.
A base station configured for serving a plurality of wireless devices, the base station configured to:
- send a request for grouping information indicating one or more clustering criterion and receiving the grouping information in response to the request;
- group one or more of the plurality of wireless devices together based at least in part on clustering information corresponding to each of the plurality of wireless devices and according to the one or more the clustering criterion, wherein the grouping information comprises spatial information of each one of the wireless devices in a group being distinct from each other according to the one or more clustering criterion, and wherein the one or more clustering criterion comprises a spatial relationship between each of the one or more wireless devices and the base station;
- assign at least one pilot signal to the one or more wireless devices based on the grouping information, wherein at least two of the one of more wireless devices in said group are assigned the same pilot signal;
- and transmit the at least one pilot signal.
Dependencies are inferred from the claim text.