IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0849646
(2007-09-04)
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등록번호 |
US-9420603
(2016-08-16)
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발명자
/ 주소 |
- Ji, Tingfang
- Borran, Mohammad Jaber
- Gorokhov, Alexei
- Khandekar, Aamod
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
13 |
초록
▼
System(s) and method(s) that facilitate assignment mismatch recovery are provided. A projected level of resources required to satisfy one or more communication constraints (e.g., inter-cell and intra-cell interference) is generated. The projected resources are contrasted with scheduled resources and
System(s) and method(s) that facilitate assignment mismatch recovery are provided. A projected level of resources required to satisfy one or more communication constraints (e.g., inter-cell and intra-cell interference) is generated. The projected resources are contrasted with scheduled resources and a determination is made as to whether a mismatch between assigned and projected resources exists. A mismatch is recovered through an adaptive response that feeds back magnitudes for the communication resources which are compatible with the communication constraints.
대표청구항
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1. A method for recovering from a communication resource mismatch, that is employed in a wireless communication system, comprising: receiving a communication resource assignment at an access terminal;determining a resource mismatch exists between the resource assignment and a projected communication
1. A method for recovering from a communication resource mismatch, that is employed in a wireless communication system, comprising: receiving a communication resource assignment at an access terminal;determining a resource mismatch exists between the resource assignment and a projected communication resource level, wherein the projected communication resource level is based on a difference in pilot signal strength between a serving sector and a dominant non-serving sector; andresponding to the communication resource mismatch with a resource adjustment. 2. The method of claim 1, further comprising transmitting the resource adjustment. 3. The method of claim 1, wherein the communication resource assignment includes one or more selected from the group consisting of a power output level and a power spectral density. 4. The method of claim 1, wherein the communication resource assignment includes a data packet format. 5. The method of claim 1, wherein the communication resource assignment includes one or more selected from the group consisting of a bandwidth, a frequency reuse index, and a subcarrier spacing. 6. The method of claim 1, wherein the resource adjustment includes employing the projected communication resource level instead of the assigned resources. 7. The method of claim 1, wherein the resource adjustment includes employing a portion of the assigned resources but transmitting at a minimal power spectral density to convey the projected communication resource level. 8. The method of claim 1, wherein the resource adjustment includes adapting a data packet format to a format compatible with transmission at a power spectral density (PSD) that is lesser than an assigned PSD. 9. The method of claim 8, further comprising transmitting a data packet at a PSD that is compatible with the adapted data packet format. 10. The method of claim 9, further comprising conveying the projected communication resource level in the transmitted data packet. 11. The method of claim 10, wherein conveying the projected communication resource level incurs an overhead of m bits transmitted in the header of the data packet, wherein m is compatible with a specification of the wireless communication system or is a predetermined number of modulation symbols. 12. The method of claim 10, wherein conveying the projected communication resource level utilizes a dedicated reverse link rate indication channel. 13. The method of claim 1, wherein the access terminal has reverse link data communications with the serving sector, forward link data communications with the dominant non-serving sector, and no reverse link data communications with the dominant non-serving sector. 14. An electronic device configured to recover from a communication resource mismatch by: receiving a communication resource assignment at an access terminal;determining a resource mismatch exists between the resource assignment and a projected communication resource level, wherein the projected communication resource level is based on a difference in pilot signal strength between a serving sector and a dominant non-serving sector; andresponding to the communication resource mismatch with a resource adjustment. 15. A wireless communication apparatus, comprising: an integrated circuit configured to receive a resource schedule, to compute a resource projection level and determine a mismatch exists between the scheduled resources and the projected resources, and to recover the resource mismatch, wherein the projected resources are based on a difference in pilot signal strength between a serving sector and a dominant non-serving sector; anda memory coupled to the integrated circuit and configured to store data. 16. The wireless communication apparatus of claim 15, wherein the integrated circuit is further configured to suspend a communication transmission and abandon the resource schedule upon determination that a mismatch exists between the scheduled resources and the projected resources. 17. The wireless communication apparatus of claim 15, wherein, to recover the resource mismatch, the integrated circuit is further configured to communicate employing the projected resources. 18. The wireless communication apparatus of claim 15, wherein, to recover the resource mismatch, the integrated circuit is further configured to adjust a scheduled resource and communicate employing the adjusted resource. 19. The wireless communication apparatus of claim 18, wherein the integrated circuit is configured to adjust at least one selected from the group consisting of a packet format, a bandwidth, a process order of a hybrid automated repeat request, a power, and a power spectral density. 20. The wireless communication apparatus of claim 19, wherein the adjusted packet format includes a specification of spectral efficiency, a packet size, a code rate, and a modulation scheme to be used with a hybrid repeat request process. 21. The wireless communication apparatus of claim 18, wherein the integrated circuit is further configured to transmit an adjusted resource through a dedicated channel in the physical layer of the wireless communication system. 22. The wireless communication apparatus of claim 15, wherein the integrated circuit is further configured to infer a response to recover the resource mismatch based on at least one selected from the group consisting of a cell traffic load, an average cell interference, an indication of other-sector interference, and a set of antennas available at a serving access point. 23. The wireless communication apparatus of claim 15, wherein the memory is configured to store the computed resource projection. 24. The wireless apparatus of claim 15, wherein the memory is configured to store an algorithm to compute a resource projection level. 25. The wireless communication apparatus of claim 15, wherein the integrated circuit is further configured to measure a pilot strength that is selected from the group consisting of a received pilot signal and a signal-to-thermal noise ratio of a received pilot signal. 26. The apparatus of claim 15, wherein the apparatus is integrated with an access terminal. 27. An apparatus employed in wireless communication, that facilitates recovery from resource mismatch, comprising: means for establishing a communication resource projection,means for generating an adaptive response to a resource assignment mismatch between the communication resource projection and a scheduled communication resource, wherein the communication resource projection is based on a difference in pilot signal strength between a serving sector and a dominant non-serving sector; andmeans for transmitting the adaptive response to the resource assignment mismatch. 28. The apparatus of 27, wherein the means for establishing a communication resource projection includes means for computing an open-loop estimate of projected resources. 29. The apparatus of claim 27, wherein the apparatus is integrated with an access terminal. 30. A non-transitory computer-readable medium, comprising: code for causing a computer to compute an open loop estimate of required resources for communicating wirelessly, subject to one or more communication constraints, wherein the open loop estimate is based on a difference in pilot signal strength between a serving sector and a dominant non-serving sector;code for causing a computer to receive a resource assignment;code for causing a computer to compare the estimate of required resources for the communicating wirelessly subject to one or more communication constraints to the assigned resources, and determining whether the required and assigned resources are mismatched; andcode for causing a computer to respond to a resource mismatch by transmitting one or more adjusted resources from the group of assigned resources. 31. The computer-readable medium of claim 30, further comprising code for causing a computer to measure a strength of a received pilot signal. 32. The computer-readable medium of claim 30, further comprising code for causing a computer to measure a signal-to-thermal noise amplitude of a received pilot signal. 33. The computer-readable medium of claim 30, further comprising code for causing a computer to employ the signal-to-thermal noise ratio when computing the open loop estimate of required resources for communicating wirelessly. 34. The computer-readable medium of claim 30, further comprising code for causing a computer to respond to a resource by communicating wirelessly employing one or more adjusted resources from the group of assigned resources. 35. The computer-readable medium of claim 30, wherein the computer-readable medium is integrated with an access terminal. 36. An apparatus that operates in a wireless environment, comprising: means for scheduling one or more communication resources;means for adjusting the scheduled communication resources in response to a received communication that conveys an alternative set of communication resources, wherein the alternative set of communication resources is based on a difference in pilot signal strength between a serving sector and a dominant non-serving sector; andmeans for re-scheduling the set of alternative communication resources. 37. The apparatus of claim 36, wherein the apparatus is integrated with an access point. 38. In a wireless communication system, an apparatus comprising: an integrated circuit configured to assign a set of time-frequency resources, to receive a set of adjusted resources, and to carry out a communication employing an adjusted resource, wherein the adjusted resources are based on a difference in pilot signal strength between a serving sector and a dominant non-serving sector; anda memory that is coupled to the integrated circuit and configured to store data and algorithms. 39. The apparatus of claim 38, wherein the integrated circuit is configured to suspend a communication in response to receiving a request for alternative communication resources. 40. The apparatus of claim 39, wherein the integrated circuit employs multiple-hypothesis decoding to decode the multiple data packet formats. 41. The apparatus of claim 39, wherein the integrated circuit is further configured to convey a listing of data packet formats, and a member of a set of listed data packet formats is employed alternatively to a member in the set of received adjusted resources by the integrated circuit to carry out a communication. 42. The apparatus of claim 39, wherein a first member of the listed set of data packet format is compatible with a second member of said set, and the first and second members are compatible members employed interchangeably by the integrated circuit. 43. The apparatus of claim 38, wherein the integrated circuit is further configured to facilitate resource adjustment, wherein the resource adjustment is at least a change from an N-step hybrid automated repeat request (HAQR) process to an M-step HARQ, with M greater than N and both natural numbers. 44. The apparatus of claim 38, wherein the integrated circuit is configured to decode multiple data packet formats. 45. The apparatus of claim 38, wherein the integrated circuit is configured to assign a frequency reuse pattern, and a bandwidth. 46. The apparatus of claim 38, wherein the integrated circuit is configured to assign one or more resources selected from a group consisting of a power output level and a power spectral density. 47. The apparatus of claim 38, wherein the integrated circuit is configured to schedule a set of frequency distributed subcarriers or frequency localized subcarriers for communication. 48. The apparatus of claim 38, wherein the apparatus is integrated with an access point. 49. A method used in a wireless communication system, comprising: scheduling a first set of communication resources at an access point;receiving a second set of communication resources in response to the first set of scheduled communication resources, wherein the second set of communication resources are based on a difference in pilot signal strength between a serving sector and a dominant non-serving sector; anddetermining whether to re-schedule the first set of communications according to the received second set of resources. 50. The method of claim 49, further comprising re-scheduling the first set of resources according to the second set of resources, if a determination to re-schedule is made. 51. The method of claim 49, further comprising suspending a transmission when a determination not to reschedule is made. 52. The method of claim 49, wherein the scheduling a first set of communication resources includes scheduling one or more resources selected from the group consisting of a packet format, a bandwidth, a frequency re-use pattern, a process order of a hybrid automated repeat request, a power, and a power spectral density. 53. The method of claim 49, wherein the re-scheduling the first set of resources includes assigning a data packet format from a set of multiple data packet formats. 54. The method of claim 49, wherein the re-scheduling the first set of resources includes assigning an M-step hybrid automated repeat request (HAQR) process, wherein the M-step process is longer that a first scheduled HARQ process. 55. The method of claim 49, wherein the access terminal has reverse link data communications with the serving sector, forward link data communications with the dominant non-serving sector, and no reverse link data communications with the dominant non-serving sector. 56. A non-transitory computer-readable medium, comprising: code for causing a computer to assign a first set of resources for communicating wirelessly; andcode for causing a computer to re-assign the first set of resources in response to a received communication conveying that the first set of communication resources mismatches a set of projected resources, wherein the received communication is based on a difference in pilot signal strength between a serving sector and a dominant non-serving sector. 57. The computer-readable medium of claim 56, wherein the computer-readable medium is integrated with an access point. 58. An electronic device configured to: schedule a first set of communication resources at an access point;receive a second set of communication resources in response to the first set of scheduled communication resources, wherein the second set of communication resources are based on a difference in pilot signal strength between a serving sector and a dominant non-serving sector; anddetermine whether to re-schedule the first set of communications according to the received second set of resources.
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