Implicit resource allocation using shifted synchronization sequence
View Patent ↗A method, apparatus, system, and computer readable medium are provided that can utilize one or more synchronization signals to perform synchronization and resource allocation. The one or more synchronization signals can be used for synchronization, as well as include a cyclic shift that maps one or more resources for transmission.
1. A method, comprising:
transmitting a first primary synchronization signal comprising a first cyclic shift over a shared band, wherein the first primary synchronization signal synchronizes a communication device with a transmission over the shared band;
mapping a second cyclic shift to one or more resources of one or more channels of the shared band; and
transmitting a second primary synchronization signal comprising the second cyclic shift over the shared band, wherein the second primary synchronization signal indicates the one or more resources of the one or more channels of the shared band.
2. The method of claim 1 , further comprising:
transmitting an intermediate synchronization signal over the shared band, wherein the intermediate synchronization signal informs the communication device of the transmission over the shared band.
3. The method of claim 2 , wherein the intermediate synchronization signal is transmitted before the second primary synchronization signal is transmitted.
4. The method of claim 1 ,
wherein the mapping the second cyclic shift to the one or more resources of the one or more channels of the shared band comprises mapping the second cyclic shift to a cluster of a resource allocation tree,
wherein the resource allocation tree comprises one or more clusters,
wherein each cluster comprises one or more resource blocks, and
wherein each resource block comprises one or more resources.
5. The method of claim 4 , wherein each cluster of the resource allocation tree comprises a different number of resource blocks.
6. The method of claim 1 ,
wherein the first and second primary synchronization signals are transmitted over a center frequency, and
wherein the center frequency comprises a plurality of subcarriers.
7. The method of claim 6 , wherein the center frequency comprises a shared band control channel.
8. The method of claim 1 , wherein the transmitting and the mapping are performed by one of an evolved node B and a user equipment.
9. An apparatus, comprising:
a processor; and
a memory comprising computer program code,
the memory and the computer program code configured to, with the processor, cause the apparatus to
transmit a first primary synchronization signal comprising a first cyclic shift over a shared band, wherein the first primary synchronization signal synchronizes a communication device with a transmission over the shared band;
map a second cyclic shift to one or more resources of one or more channels of the shared band; and
transmit a second primary synchronization signal comprising the second cyclic shift over the shared band, wherein the second primary synchronization signal indicates the one or more resources of the one or more channels of the shared band.
10. The apparatus of claim 9 , the memory and the computer program code further configured to, with the processor, cause the apparatus to transmit an intermediate synchronization signal over the shared band, wherein the intermediate synchronization signal informs the communication device of the transmission over the shared band.
11. The apparatus of claim 10 , the memory and the computer program code further configured to, with the processor, cause the apparatus to transmit the intermediate synchronization signal before the second primary synchronization signal.
12. The apparatus of claim 9 ,
the memory and the computer program code further configured to, with the processor, cause the apparatus to map the second cyclic shift to a cluster of a resource allocation tree,
wherein the resource allocation tree comprises one or more clusters,
wherein each cluster comprises one or more resource blocks, and
wherein each resource block comprises one or more resources.
13. The apparatus of claim 12 , wherein each cluster of the resource allocation tree comprises a different number of resource blocks.
14. The apparatus of claim 9 ,
the memory and the computer program code further configured to, with the processor, cause the apparatus to transmit the first and second primary synchronization signals over a center frequency,
wherein the center frequency comprises a plurality of subcarriers.
15. The apparatus of claim 14 , wherein the center frequency comprises a shared band control channel.
16. The apparatus of claim 9 , wherein the apparatus comprises one of an evolved Node B and a user equipment.
17. A computer program product comprising a non-transitory computer-readable medium bearing computer program code embodied therein for use with a computer, the computer code comprising:
code for transmitting a first primary synchronization signal comprising a first cyclic shift over a shared band, wherein the first primary synchronization signal synchronizes a communication device with a transmission over the shared band;
code for mapping a second cyclic shift to one or more resources of one or more channels of the shared band; and
code for transmitting a second primary synchronization signal comprising the second cyclic shift over the shared band, wherein the second primary synchronization signal indicates the one or more resources of the one or more channels of the shared band.
18. A method, comprising:
mapping a first cyclic shift to one or more resources of one or more channels of a shared band; and
transmitting a first primary synchronization signal comprising the first cyclic shift over the shared band, wherein the first primary synchronization signal synchronizes a communication device with a transmission over the shared band and indicates the one or more resources of the one or more channels of the shared band.
19. An apparatus, comprising:
a processor; and
a memory comprising computer program code,
the memory and the computer program code configured to, with the processor, cause the apparatus to
map a first cyclic shift to one or more resources of one or more channels of a shared band; and
transmit a first primary synchronization signal comprising the first cyclic shift over the shared band, wherein the first primary synchronization signal synchronizes a communication device with a transmission over the shared band and indicates the one or more resources of the one or more channels of the shared band.
20. An apparatus, comprising:
a processor; and
a memory comprising computer program code,
the memory and the computer program code configured to, with the processor, cause the apparatus to
receive a first primary synchronization signal comprising a first cyclic shift over a shared band;
synchronize the apparatus with a transmission over the shared band utilizing the first primary synchronization signal;
receive a second primary synchronization signal comprising a second cyclic shift over the shared band, wherein the second cyclic shift is mapped to one or more resources of one or more channels of the shared band; and
determine the one or more resources of one or more channels of the shared band utilizing the second primary synchronization signal.