Device, Network, and Method for Utilizing a Downlink Discovery Reference Signal
First Claim
1. A method for signaling comprising:
- receiving, by a user equipment (UE), a discovery reference signal (DRS) transmission over a first antenna port and a cell-specific reference signal (CRS) transmission over a second antenna port, the first antenna port being different from the second antenna port;
processing, by the UE, the DRS transmission to obtain a DRS processing result;
processing, by the UE, the CRS transmission to obtain a CRS processing result; and
using, by the UE, the DRS processing result in conjunction with the CRS processing result to establish channel synchronization with the second antenna port when the first antenna port and the second antenna port are quasi-co-located (QCL).
1 Assignment
0 Petitions
Accused Products
Abstract
User equipments can achieve quick channel synchronization when establishing a connection to base stations transitioning from a sleep mode to an active mode by using discovery resource signal (DRS) processing results and cell reference signal (CRS) processing results to establish channel synchronization with a CRS antenna port. More specifically, the user equipment may be notified that the CRS antenna port and DRS antenna port are quasi-co-located (QCL), and then use DRS processing results in conjunction with CRS processing results to obtain faster channel synchronization with a CRS antenna port. This may be particularly beneficial when the target BS is transitioned from a sleep mode to an active mode in order to accept a handover of the user equipment.
83 Citations
24 Claims
-
1. A method for signaling comprising:
-
receiving, by a user equipment (UE), a discovery reference signal (DRS) transmission over a first antenna port and a cell-specific reference signal (CRS) transmission over a second antenna port, the first antenna port being different from the second antenna port; processing, by the UE, the DRS transmission to obtain a DRS processing result; processing, by the UE, the CRS transmission to obtain a CRS processing result; and using, by the UE, the DRS processing result in conjunction with the CRS processing result to establish channel synchronization with the second antenna port when the first antenna port and the second antenna port are quasi-co-located (QCL). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A user equipment comprising:
-
a processor; and a computer readable storage medium storing programming for execution by the processor, the programming including instructions to; receive a discovery reference signal (DRS) transmission over a first antenna port and a cell-specific reference signal (CRS) transmission over a second antenna port, the first antenna port being different from the second antenna port; process the DRS transmission to obtain a DRS processing result; process the CRS transmission to obtain a CRS processing result; and use the DRS processing result in conjunction with the CRS processing result to establish channel synchronization with the second antenna port when the first antenna port and the second antenna port are quasi-co-located (QCL).
-
-
13. A method for discovery reference signaling, the method comprising:
-
sending, by a network device, a first message to a user equipment, the first message indicating that a discovery resource signal (DRS) transmission is being communicated over a first antenna port, wherein the DRS transmission is communicated by a target cell; and sending, by the network device, a second message to the user equipment, the second message indicating that a cell-specific reference signal (CRS) transmission is being communicated over a second antenna port, the second antenna port being different than the first antenna port, wherein the second antenna port and the first antenna port are quasi-co-located (QCL), and wherein the CRS transmission is communicated by the target cell. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
-
-
24. A network device comprising:
-
a processor; and a computer readable storage medium storing programming for execution by the processor, the programming including instructions to; send a first message to a user equipment, the first message indicating that a discovery resource signal (DRS) transmission is being communicated over a first antenna port, wherein the DRS transmission is communicated by a target cell; and send a second message to the user equipment, the second message indicating that a cell-specific reference signal (CRS) transmission is being communicated over a second antenna port, the second antenna port being different than the first antenna port, wherein the second antenna port and the first antenna port are quasi-co-located (QCL), and wherein the CRS transmission is communicated by the target cell.
-
Specification