Abstract
Providing for base station (BS) acquisition in semi-planned or unplanned wireless access networks is described herein. By way of example a signal preamble can be dynamically allocated to wireless signal resources such that the preamble is scheduled to different resource(s) across different cycles of the signal. Dynamic allocation can be pseudo-random based on collision feedback or determined by a suitable algorithm to mitigate collisions from a dominant interferer. In addition dynamic scheduling can be particular to a type of BS to significantly reduce collisions from BSs of disparate types. In at least one aspect a preamble resource can be subdivided into multiple frequency sub-carrier tiles. Control channel information can be transmitted on each tile of a group of such tiles further mitigating effects of a dominant interferer on a subset of the tile group.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 3G | 18/07/2011 | ISLD-201107-019 | QUALCOMM INC | No | Family Member | ||||
| Not Available | 18/07/2011 | ISLD-201107-019 | QUALCOMM INC | No | Family Member | ||||
| 2G | 20/12/2012 | ISLD-201301-007 | QUALCOMM INC | No | Family Member | ||||
| Not Available | 20/12/2012 | ISLD-201301-007 | QUALCOMM INC | No | Family Member | ||||
| 4G | 27/03/2018 | ISLD-201805-030 | QUALCOMM INC | No | Family Member | ||||
| 3G | 28/06/2018 | ISLD-201808-002 | QUALCOMM INC | No | Family Member | ||||
| 5G | 12/03/2020 | ISLD-202003-022 | QUALCOMM INC | No | Family Member | ||||
Specification Information
Specification Information
Technologies
Family Information
| All Granted Patents In Patent Family : | ---- |
| All Pending Patents In Patent Family : | ---- |
| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | |||||||
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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S1
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Technologies
Signal Processing Heterogenous Network
Product
Use Cases
Wireless communication
Services
Claim
1. A method of enabling base station (BS) detection in a wireless access network (AN), comprising: establishing a set of signal resources for a wireless signal; and employing fractional resource re-use in scheduling an acquisition pilot on the set of signal resources of the wireless signal.
2. The method of claim 1, further comprising reserving at least one resource of the wireless signal for at least one of: a BS of a disparate access type as a BS transmitting the wireless signal; a BS of a disparate transmit power class as the transmitting BS; or a BS of a different re-use type as the transmitting BS.
3. The method of claim 1, employing fractional resource re-use further comprises fractional time, frequency or tile re -use of the set of signal resources, wherein a tile is a subset of orthogonal frequency division multiplex (OFDM) subcarriers over a subset of OFDM symbols, time frames, frequency subcarriers or code-based resources of the wireless signal.
4. The method of claim 1, employing fractional resource re-use further comprises planned re-use, random re-use, pseudo-random re -use, time -varying re-use, or learned re-use, or a combination thereof.
5. The method of claim 1 , further comprising transmitting the acquisition pilot in two or more resources of a time cycle of the wireless signal if a BS transmitting the acquisition pilot is a mid or low power BS.
6. The method of claim 1, further comprising: establishing a set of time-frequency tiles for at least one resource of the wireless signal, each tile of the set comprising one or more frequency sub-carriers over a subset of OFDM symbols, time frames, frequency subcarriers or code-based resources of the wireless signal; and employing fractional tile re-use in scheduling control channel information of the wireless signal to a subset of the sub-carriers.
7. The method of claim 1, further comprising scheduling control channel information into grouped time sub-slots of a common interlace of the wireless signal.
8. The method of claim 1 , further comprising restricting transmission of the acquisition pilot in at least one resource of the wireless signal if a BS transmitting the wireless signal is a full re-use BS.
9. A wireless BS that facilitates BS detection in a wireless AN, comprising: a wireless transceiver that transmits a wireless signal; and a signal parser that establishes a set of signal resources for the wireless signal and employs fractional resource re-use in transmitting an acquisition pilot via the set of signal resources
10. The wireless BS of claim 9, the signal parser reserves at least one resource of the wireless signal for at least one of: a BS of a disparate access type as a BS transmitting the wireless signal; a BS of a disparate transmit power class as the transmitting BS; or a BS of a different re-use type as the transmitting BS
11. The wireless BS of claim 9, the signal parser segments the wireless signal into a set of time resources, a set of frequency resources or a set of OFDM symbol resources, or a combination of such resources, and employs fractional resource re-use in transmitting the acquisition pilot
12. The wireless BS of claim 9, the signal parser employs planned re-use, random re-use, pseudo-random re -use, time -varying re -use, or learned re-use, or a combination thereof, as the resource re-use
13. The wireless BS of claim 9, the signal parser transmits the acquisition pilot in two or more resources of a time cycle of the wireless signal if a BS generating the wireless signal is a mid or low power BS
14. The wireless BS of claim 9, further comprising: a tiling module that establishes a set of frequency tiles for at least one resource of the wireless signal, each tile of the set comprising one or more frequency sub-carriers over one or more OFDM symbols of the wireless signal; and a control schedule module that employs fractional tile re-use in scheduling control channel information of the wireless signal to a subset of the sub-carriers
15. The wireless BS of claim 9, further comprising a timing partition module that groups time sub-slots of a common interlace of the wireless signal for control information
16. The wireless BS of claim 9, the signal parser restricts transmission of the acquisition pilot in at least one resource of the wireless signal if a BS transmitting the wireless signal is a full re-use BS
17. An apparatus for enabling BS detection in a wireless AN, comprising: means for establishing a set of signal resources for a wireless signal; and means for employing fractional resource re-use in scheduling an acquisition pilot on the set of signal resources of the wireless signal
18. A processor configured to enable BS detection in a wireless AN, comprising: a first module that establishes a set of signal resources for a wireless signal; and a second module that employs fractional resource re-use in scheduling an acquisition pilot on the set of signal resources of the wireless signal
19. A computer-readable medium, comprising computer-readable instructions executable by at least one computer to: establish a set of signal resources for a wireless signal; and employ fractional resource re-use in scheduling an acquisition pilot on the set of signal resources of the wireless signal.
20. A method of enabling BS detection in a wireless AN, comprising: establishing a set of signal resources for a wireless signal; and employing random, pseudo-random or learned re -use in scheduling control channel information on the wireless signal.
21. The method of claim 20, further comprising reserving at least one resource of the wireless signal for at least one of: a BS of a disparate access type as a BS transmitting the wireless signal; a BS of a disparate transmit power class as the transmitting BS; or a BS of a different re-use type as the transmitting BS.
22. The method of claim 21 , further comprising scheduling the reserved resource(s) substantially adjacent to a signal resource comprising the control channel information.
23. The method of claim 20, the random, pseudo-random or learned re-use employs fractional time re-use, or fractional frequency re-use, or a combination thereof, for the control channel scheduling, wherein a tile comprises a subset of subcarriers over a subset of OFDM symbols of the wireless signal.
24. The method of claim 20, further comprising sub-dividing at least one resource of the set to facilitate the random, pseudo-random or learned re-use.
25. The method of claim 20, further comprising scheduling the control channel information in a plurality of the set of resources if a BS transmitting the wireless signal is a mid or low power BS.
26. The method of claim 20, further comprising employing fractional time or frequency re-use in scheduling an acquisition pilot to the wireless signal.
27. The method of claim 20, further comprising: establishing a set of frequency tiles for at least one resource of the wireless signal, each tile of the set comprising a plurality of sub-carriers; and employing tile re-use in scheduling the control channel information of the wireless signal to a subset of the sub-carriers.
28. The method of claim 27, further comprising employing a random, pseudorandom or time-varying function to select tiles from the set to form the subset.
29. The method of claim 20, further comprising grouping a plurality of time resources of a common interlace of the wireless signal for the control channel information.
30. The method of claim 20, further comprising: scheduling reverse link (RL) assignment information in time resources of the set prior to the grouped plurality of time resources; and scheduling RL acknowledgement (ACK) information in time resources of the set subsequent to the grouped plurality of time resources.
31. A wireless BS that enables BS detection in a wireless AN, comprising: a wireless transceiver that transmits a wireless signal; and a signal parser that establishes a set of signal resources for the wireless signal and employs random, pseudo-random or learned resource re-use in scheduling control channel information to the wireless signal.
32. The wireless BS of claim 31 , the signal parser reserves at least one resource of the wireless signal for at least one of: a BS of a disparate access type as a BS transmitting the wireless signal; a BS of a disparate transmit power class as the transmitting BS; or a BS of a different re-use type as the transmitting BS.
33. The wireless BS of claim 31 , the signal parser schedules the reserved resource(s) substantially adjacent to a signal resource that comprises the control channel information.
34. The wireless BS of claim 31 , further comprising a timing partition module that provides two or more time slots of the wireless signal wherein the signal parser schedules the control channel information in a plurality of the time slots.
35. The wireless BS of claim 31 , the other resource comprises at least two time slots of the wireless signal.
36. The wireless BS of claim 31 , the signal parser segments the wireless signal into a set of time or a set of frequency resources and employs time or frequency re-use in scheduling the control channel information.
37. The wireless BS of claim 31 , the signal parser schedules the control channel information to: a specified sub-band of a subset of the set of signal resources; a random or pseudo-random sub-band of the subset; a selected resource of the subset, the selected resource provides reduced control channel collision from a nearby BS determined at last in part from collision feedback.
38. The wireless BS of claim 31 , further comprising a synchronization module that employs time or frequency re-use in scheduling a synchronization signal to the wireless signal.
39. The wireless BS of claim 31 , further comprising: a tiling module that establishes a set of frequency tiles for at least one resource of the wireless signal, each tile of the set comprising a plurality of sub-carriers; and a control schedule module that employs tile re -use in scheduling control channel information of the wireless signal to a subset of the sub-carriers.
40. The wireless BS of claim 31 , further comprising a timing partition module that groups two resources of the set in a common interlace of the wireless signal for the control channel information.
41. The wireless BS of claim 31 , wherein the signal parser: schedules RL assignment information in time resources of the set prior to the grouped plurality of time resources; and schedules RL ACK information in time resources of the set subsequent to the grouped plurality of time resources.
42. An apparatus for enabling BS detection in a wireless AN, comprising: means for establishing a set of signal resources for a wireless signal; and means for employing random, pseudo-random or learned re-use in scheduling control channel information to the wireless signal.
43. A processor configured to enable BS detection in a wireless AN, comprising: a first module that establishes a set of signal resources for a wireless signal; and a second module that employs random, pseudo-random or learned re-use in scheduling control channel information to the wireless signal.
44. A computer-readable medium, comprising: computer-readable instructions executable by at least one computer to: establish a set of signal resources for a wireless signal; and employ random, pseudo-random or learned re -use in scheduling control channel information to the wireless signal.
45. A method of detecting a wireless BS, comprising: obtaining a wireless signal comprising at least a first and second time cycle; and at least one of: obtaining an acquisition pilot from one resource of the first time cycle and from a different resource of the second time cycle; or employing a random, pseudo-random or learned re-use function to obtain control channel information from the wireless signal.
46. The method of claim 45, further comprising obtaining a second acquisition pilot from a resource of the second time cycle that is distinct from the different resource, wherein the acquisition pilot is a significant interferer of the second acquisition pilot in the first time cycle.
47. The method of claim 46, further comprising connecting to a base station identified from the second acquisition pilot.
48. The method of claim 47, connecting to the identified base station further comprises at least one of: initial access to the identified base station; implementing UE -initiated handoff to the identified base station; or facilitating network-initiated handoff to the identified base station by reporting an ID of such base station to a serving base station.
49. The method of claim 46, further comprising initiating interference avoidance with a base station identified from the second acquisition pilot.
50. The method of claim 49; wherein initiating interference avoidance comprises at least one of: providing a signal characteristic of the second acquisition pilot to the identified base station; sending an interference avoidance message to the identified base station at least in part over a backhaul link that couples such base station with a serving base station; sending the interference avoidance message OTA to the identified base station; or reporting the identified base station to the serving base station.
51. The method of claim 45, further comprising employing a time partition, a frequency partition or a code partition, or a combination thereof, of the first or second time cycle as the resource or the different resource, respectively.
52. The method of claim 45, further comprising obtaining the acquisition pilot from at least one additional time frame of the first or second time cycle originated at: a mid to low power transmitter; a high power transmitter; a general access (GA) transmitter; or a restricted access (RA) transmitter.
53. The method of claim 52, obtaining the acquisition pilot further comprises scanning a frequency sub-band of the at least one additional time frame.
54. The method of claim 53, obtaining the acquisition pilot further comprises: identifying and associating the acquisition pilot with a particular frequency sub- band of the at least one additional time frame; and scanning the particular sub-band of a subsequent time cycle of the wireless signal for the acquisition pilot.
55. The method of claim 53 , further comprising : detecting signal interference on a frequency sub-band containing the acquisition pilot or control channel information; and sending an RL transmission indicating a preamble collision has occurred on the frequency sub-band.
56. The method of claim 55, further comprising: identifying an ID of one or more colliding BSs on the frequency sub-band; and including the identified BS ID(s) with the RL transmission.
57. The method of claim 56, obtaining the acquisition pilot further comprises scanning all frequency sub-bands of the at least one additional time frame.
58. The method of claim 45, further comprising parsing at least one resource of the wireless signal into multiple frequency sub-carrier tiles.
59. The method of claim 58, employing the random or pseudo-random function further comprises matching two or more of the frequency tiles that convey the control channel information.
60. The method of claim 59, further comprising extracting the control channel information from the matched frequency tiles.
61. An apparatus configured for detection of a wireless BS, comprising: a wireless antenna that obtains a wireless signal comprising at least a first and second time cycle; a receive processor that at least one of: obtains an acquisition pilot from one resource of the first time cycle and from a different resource of the second time cycle; or employs a random, pseudo-random or learned re -use function to obtain control channel information from the wireless signal; and memory coupled to the receive processor.
62. The apparatus of claim 61 , the receive processor obtains the acquisition pilot from at least one additional resource of the first or second cycle originated at: a mid to low power transmitter; a high power transmitter; a GA transmitter; or an RA transmitter.
63. The apparatus of claim 62, the receive processor scans all frequency sub-bands of the at least one additional resource in obtaining the acquisition pilot.
64. The apparatus of claim 62, the receive processor scans a network-specified frequency sub-band of the at least one additional resource in obtaining the acquisition pilot.
65. The apparatus of claim 61 , further comprising: an ID module that extracts ID information of a BS that originates the acquisition pilot or control channel information from a frequency sub-band of the wireless signal; and a BS re-use module that associates the originating BS with the frequency sub- band, wherein the receive processor obtains a subsequent acquisition pilot from the frequency sub-band of a subsequent time cycle of the wireless signal.
66. The apparatus of claim 61 , further comprising: an interference module that detects signal interference on a frequency sub-band of the wireless signal containing the acquisition pilot or control channel information; and a collision reporting module that initiates an RL transmission indicating a preamble collision has occurred on the frequency sub-band.
67. The apparatus of claim 66, further comprising an ID module that identifies an ID of one or more colliding BSs on the frequency sub-band and provides the ID(s) to the collision reporting module to include with the RL transmission.
68. The apparatus of claim 66, further comprising a tiling module that parses at least one resource of the wireless signal into multiple frequency sub-carrier tiles.
69. The apparatus of claim 68, the tiling module matches two or more of the frequency tiles that convey the control channel information.
70. The apparatus of claim 69, the receive processor extracts the control channel information from the matched frequency tiles.
71. The apparatus of claim 61 , wherein the wireless antenna obtains a second acquisition pilot from a resource of the second time cycle that is distinct from the different resource, wherein the acquisition pilot is a significant interferer of the second acquisition pilot in the first time cycle.
72. The apparatus of claim 71 , wherein the receive processor connects to a base station identified from the second acquisition pilot.
73. The apparatus of claim 72, wherein the receive processor connects to the identified base station by at least one of: implementing initial access to the identified base station; implementing UE -initiated handoff to the identified base station; or facilitates network-initiated handoff to the identified base station by reporting an ID of such base station to a serving base station.
74. The apparatus of claim 71 , wherein the receive processor initiates interference avoidance with a base station identified from the second acquisition pilot.
75. The apparatus of claim 74, wherein the receive processor initiates interference avoidance by employing the antenna to at least one of: provide a signal characteristic of the second acquisition pilot to the identified base station; send an interference avoidance message to the identified base station at least in part over a backhaul network coupling such base station with a serving base station; send the interference avoidance message OTA to the identified base station; or send a message to the serving base station reporting the identified base station.
76. The apparatus of claim 71 , wherein the one resource or the different resource comprise a time, frequency or code partition, or a combination thereof, of the first time cycle or second time cycle, respectively.
77. An apparatus for detecting a wireless BS, comprising: means for obtaining a wireless signal comprising at least a first and second time cycle; and at least one of: means for obtaining an acquisition pilot from one time frame of the first time cycle and from a different time frame of the second time cycle; or means for employing a random, pseudo-random or learned re-use function to obtain control channel information from the wireless signal.
78. A processor configured to detect a wireless BS, comprising: a first module that obtains a wireless signal comprising at least a first and second time cycle; and a second module that at least one of: obtains an acquisition pilot from one time frame of the first time cycle and from a different time frame of the second time cycle; or employs a random, pseudo-random or learned re -use function to obtain control channel information from the wireless signal.
79. A computer-readable medium, comprising: computer-readable instructions executable by at least one computer to: obtain a wireless signal comprising at least a first and second time cycle; and at least one of: obtain an acquisition pilot from one time frame of the first time cycle and from a different time frame of the second time cycle; or employ a random, pseudo-random or learned re-use function to obtain control channel information from the wireless signal.']
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SUMMARY
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Patent number:WO2009064700A2
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The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.