Reference signal enhancement for shared cell
View Patent ↗In embodiments, apparatuses, methods, and storage media may be described for distinguishing, by a user equipment (UE), a reference signal (RS) transmitted by a cell that may have a same identifier (ID) as another cell in a network. In embodiments, a muting pattern, a time offset, or a virtual cell identifier (VCID) may be used to generate an RS sequence or RS resource allocation.
1. A user equipment (UE) in a cellular network that includes a plurality of cells, the UE comprising:
a receive circuitry to receive a reference signal (RS) and a time instance associated with RS transmission;
an RS measurement circuitry coupled with the receive circuitry, the RS measurement circuitry to:
identify, based on a comparison of the time instance with a muting pattern, the RS as an RS associated with a cell of the plurality of cells; and
identify, based on the muting pattern, an RS measurement related to the received RS; and
a transmit circuitry coupled with the RS measurement circuitry, the transmit circuitry to transmit, to an evolved NodeB (eNB), the RS measurement and an indication of the cell of the plurality of cells.
2. The UE of claim 1 , wherein the RS is a positioning RS (PRS) or a discovery RS (DRS).
3. The UE of claim 1 , wherein the RS measurement is a reference signal time difference (RSTD) or a measurement related to radio resource management (RRM).
4. The UE of claim 1 , wherein the cellular network is a coordinated multi point (CoMP) cellular network.
5. The UE of claim 1 , wherein the UE further comprises a baseband processor coupled with the receive circuitry.
6. The UE of claim 1 , wherein the time instance is a subframe of a radio frame or a unit of the subframe.
7. The UE of claim 1 , wherein the indication of the identified cell is an indication of a muting pattern associated with the identified cell.
8. The UE of claim 1 , wherein the RS is based on a physical cell identifier (PCID) of the identified cell.
9. A method comprising:
receiving, by a user equipment (UE) in a cellular network that includes a plurality of cells, a reference signal (RS) and a time instance associated with RS transmission;
identifying, by the UE based on a comparison of the time instance with a muting pattern, the RS as an RS associated with a cell of the plurality of cells;
identifying, by the UE based on the muting pattern, an RS measurement related to the received RS; and
transmitting, by the UE to an evolved NodeB (eNB), the RS measurement and an indication of the cell of the plurality of cells.
10. The method of claim 9 , wherein the RS is a positioning RS (PRS) or a discovery RS (DRS).
11. The method of claim 9 , wherein the RS measurement is a reference signal time difference (RSTD) or a measurement related to radio resource management (RRM).
12. The method of claim 9 , wherein the cellular network is a coordinated multi point (CoMP) cellular network.
13. The method of claim 9 , wherein the time instance is a subframe of a radio frame or a unit of the subframe.
14. The method of claim 9 , wherein the indication of the identified cell is an indication of a muting pattern associated with the identified cell.
15. The method of claim 9 , wherein the RS is based on a physical cell identifier (PCID) of the cell.