Techniques to manage heterogenous carrier types
View Patent ↗Techniques to manage heterogeneous carrier types are described. User equipment may comprise a processor circuit and a network control component for execution on the processor circuit to locate a synchronization signal (SS) and a cell-specific reference signal (CRS) in a physical resource block (PRB) pair of a long term evolution (LTE) system, the PRB pair having a physical signal pattern for a first carrier type, the physical signal pattern for the first carrier type to have a same number of defined positions between the SS and the CRS within the PRB pair as a physical signal pattern for a second carrier type. Other embodiments are described and claimed.
1. User Equipment (UE), comprising:
a processor circuit; and
a network control component for execution on the processor circuit to locate a synchronization signal (SS) and a cell-specific reference signal (CRS) in a physical resource block (PRB) pair of a long term evolution (LTE) network, the PRB pair having a physical signal pattern for a first carrier type, a time location of the SS according to the physical signal pattern for the first carrier type shifted relative to a time location of the SS according to a physical signal pattern for a second carrier type by a same number of defined positions as a number of defined positions of a shift in a time location of the CRS according to the physical signal pattern for the first carrier type relative to a time location of the CRS according to the physical signal pattern for the second carrier type.
2. The UE of claim 1 , the SS to comprise a primary synchronization signal (PSS) or a secondary synchronization signal (SSS).
3. The UE of claim 1 , the physical signal pattern of the second carrier type to comprise the PSS to have a sixth position in the PRB pair, the SSS to have a fifth position in the PRB pair, and the CRS to have a zero, fourth, seventh or eleventh position in the PRB pair.
4. The UE of claim 1 , the physical signal pattern of the first carrier type to comprise the PSS to have a second position in the PRB pair, the SSS to have a first position in the PRB pair, and the CRS to have a zero, third, seventh or tenth position in the PRB pair.
5. The UE of claim 1 , comprising a cell selection component for execution on the processor circuit to determine a reference signal received power (RSRP) parameter or a reference signal received quality (RSRQ) parameter from the CRS.
6. The UE of claim 1 , comprising a handoff component for execution on the processor circuit to perform handoff operations based on a reference signal received power (RSRP) parameter or a reference signal received quality (RSRQ) parameter determined from the CRS.
7. The UE of claim 1 , the radio frame to comprise multiple subframes, the SS and the CRS located within a same set of subframes of the radio frame.
8. The UE of claim 1 , comprising a radio-frequency (RF) transceiver to receive electromagnetic signals representing a radio frame from a downlink channel of the LTE network, the radio frame to comprise a subframe with the PRB pair.
9. The UE of claim 1 , comprising a touchscreen display, an input device, and an antenna.
10. A method, comprising:
receiving a radio frame at user equipment (UE) over a downlink channel of a long term evolution (LTE) network, the radio frame to comprise a subframe with a physical resource block (PRB) pair, the PRB pair to have a physical signal pattern of a first carrier type or a physical signal pattern of a second carrier type, a time location of a synchronization signal (SS) according to the physical signal pattern of the first carrier type shifted relative to a time location of the SS according to the physical signal pattern of the second carrier type by a same number of defined positions as a number of defined positions of a shift in a time location of the CRS according to the physical signal pattern of the first carrier type relative to a time location of the CRS according to the physical signal pattern of the second carrier type;
searching for the SS within the PRB pair, the SS comprising a primary SS (PSS) or a secondary SS (SSS);
locating the CRS within the PRB pair based on the position of the SS; and
measuring a power level of the CRS.
11. The method of claim 10 , the physical signal pattern of the second carrier type to comprise the PSS to have a sixth position in the PRB pair, the SSS to have a fifth position in the PRB pair, and the CRS to have a zero, fourth, seventh or eleventh position in the PRB pair.
12. The method of claim 10 , the physical signal pattern of the first carrier type to comprise the PSS to have a second position in the PRB pair, the SSS to have a first position in the PRB pair, and the CRS to have a zero, third, seventh or tenth position in the PRB pair.
13. The method of claim 10 , comprising determining a reference signal received power (RSRP) parameter or a reference signal received quality (RSRQ) parameter from the measured power level of the CRS.
14. The method of claim 10 , comprising selecting a macro node cell or a micro node cell based on a reference signal received power (RSRP) parameter or a reference signal received quality (RSRQ) parameter derived from the measured power level of the CRS.
15. The method of claim 10 , comprising performing handoff operations based on a reference signal received power (RSRP) parameter or a reference signal received quality (RSRQ) parameter determined from the measured power level of the CRS.
16. An evolved node B (eNB), comprising:
circuitry; and
a resource mapper component for execution on the circuitry to map a synchronization signal (SS) and a cell-specific reference signal (CRS) to a physical resource block (PRB) pair according to a physical signal pattern for a first carrier type, a time location of the SS according to the physical signal pattern for the first carrier type shifted relative to a time location of the SS according to a physical signal pattern for a second carrier type by a same number of defined positions as a number of defined positions of a shift in a time location of the CRS according to the physical signal pattern for the first carrier type relative to a time location of the CRS according to the physical signal pattern for the second carrier type.
17. The eNB of claim 16 , the PRB pair to comprise multiple orthogonal frequency-division multiplexing (OFDM) symbols.
18. The eNB of claim 16 , the SS to comprise a primary synchronization signal (PSS) or a secondary synchronization signal (SSS).
19. The eNB of claim 16 , the physical signal pattern of the second carrier type to comprise the PSS to have a sixth position in the PRB pair, the SSS to have a fifth position in the PRB pair, and the CRS to have a zero, fourth, seventh or eleventh position in the PRB pair.
20. The eNB of claim 16 , the physical signal pattern of the first carrier type to comprise the PSS to have a second position in the PRB pair, the SSS to have a first position in the PRB pair, and the CRS to have a zero, third, seventh or tenth position in the PRB pair.
21. The eNB of claim 16 , comprising a radio-frequency (RF) transceiver to transmit electromagnetic signals representing a radio frame over a downlink channel of a long term evolution (LTE) network, the radio frame to comprise multiple subframes, with one of the subframes to comprise the PRB pair.
22. The eNB of claim 16 , the resource mapper component to map a SS and a CRS within a same set of subframes of a radio frame.
23. The eNB of claim 16 , comprising an input device, a memory port, and an antenna.