IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0218647
(2011-08-26)
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등록번호 |
US-8320928
(2012-11-27)
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발명자
/ 주소 |
- Wu, Xinzhou
- Rangan, Sundeep
- Hande, Prashanth
- Das, Arnab
- Li, Junyi
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
3 인용 특허 :
14 |
초록
▼
Systems and methodologies are described that facilitate scheduling uplink transmissions. For instance, a time sharing scheme can be utilized such that differing mobile devices can be scheduled to transmit during differing time slots; however, it is also contemplated that a static scheme can be emplo
Systems and methodologies are described that facilitate scheduling uplink transmissions. For instance, a time sharing scheme can be utilized such that differing mobile devices can be scheduled to transmit during differing time slots; however, it is also contemplated that a static scheme can be employed. Pursuant to an illustration, an interference budget can be combined with a time varying weighting factor associated with a base station; the weighting factor can be predefined and/or adaptively adjusted (e.g., based upon a load balancing mechanism). Moreover, the weighted interference budget can be leveraged for selecting mobile devices for uplink transmission (e.g., based at least in part upon path loss ratios of the mobile devices). Further, disparate interference budgets can be utilized by differing channels of a sector at a particular time. Also, for example, a base station can assign a loading factor to be utilized by wireless terminal(s) for generating channel quality report(s).
대표청구항
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1. A wireless communications apparatus, comprising: a memory that retains instructions related to scheduling a first mobile device for uplink transmission from a first sector on a first channel during a first time slot based on a first interference budget level, scheduling a second mobile device for
1. A wireless communications apparatus, comprising: a memory that retains instructions related to scheduling a first mobile device for uplink transmission from a first sector on a first channel during a first time slot based on a first interference budget level, scheduling a second mobile device for uplink transmission from the first sector on the first channel during a second time slot based on a second interference budget level, and transmitting assignments to the first mobile device and the second mobile device related to the scheduled uplink transmissions, wherein the first interference budget level and the second interference budget level are determined as a function of time from a time varying interference budget pattern; anda processor, coupled to the memory, configured to execute the instructions retained in the memory. 2. The wireless communications apparatus of claim 1, wherein the memory further retains instructions related to obtaining channel quality reports from one or more mobile device, the channel quality reports include a measurement of an interference ratio between a signal strength from a serving base station to a respective mobile device and a weighted sum of signal strengths from interfering base stations. 3. The wireless communications apparatus of claim 1, wherein the memory further retains instructions related to scheduling a third mobile device for uplink transmission from the first sector on a second channel during the first time slot based on a third interference budget level and scheduling a fourth mobile device for uplink transmission from the first sector on the second channel during the second time slot based on a fourth interference budget level, the third and fourth interference budget levels being determined from a second interference budget pattern. 4. The wireless communications apparatus of claim 1, wherein the memory further retains instructions related to scheduling a fifth mobile device for uplink transmission from a second sector on the first channel during the first time slot based on a fifth interference budget level and scheduling a sixth mobile device for uplink transmission from the second sector on the first channel during the second time slot based on a sixth interference budget level, the fifth and sixth interference budget levels being determined from a third interference budget pattern and the first and third interference budget patterns being periodical. 5. The wireless communications apparatus of claim 4, wherein a wireless communication base station includes the first sector and the second sector. 6. The wireless communications apparatus of claim 4, wherein a first wireless communication base station includes the first sector and a second wireless communication base station includes the second sector. 7. A wireless communications apparatus that enables scheduling uplink transmissions by utilizing a dynamic interference budget, comprising: means for scheduling a first mobile device for uplink transmission from a first sector on a first channel during a first time slot based on a first interference budget level, the first interference budget level being determined from an interference budget pattern that varies over time, said means for scheduling a first mobile device being implemented in hardware;means for scheduling a second mobile device for uplink transmission from the first sector on the first channel during a second time slot based on a second interference budget level, the second interference budget lever being determined from the interference budget pattern, said means for scheduling a second mobile device being implemented in hardware; andmeans for sending assignments related to the uplink transmissions to the scheduled mobile devices, said means for sending assignments being implemented in hardware. 8. The wireless communications apparatus of claim 7, further comprising: means for scheduling a third mobile device for uplink transmission from the first sector on a second channel during the first time slot based on a third interference budget level, the third interference budget level being determined from a second interference budget pattern that varies over time, said means for scheduling a third mobile device being implemented in hardware; andmeans for scheduling a fourth mobile device for uplink transmission from the first sector on the second channel during the second time slot based on a fourth interference budget level, the fourth interference budget levels being determined from the second interference budget pattern, said means for scheduling a fourth mobile device being implemented in hardware. 9. The wireless communications apparatus of claim 7, further comprising: means for scheduling a fifth mobile device for uplink transmission from a second sector on the first channel during the first time slot based on a fifth interference budget level, the fifth interference budget level being determined from a third interference budget pattern that varies over time, said means for scheduling a fifth mobile device being implemented in hardware; andmeans for scheduling a sixth mobile device for uplink transmission from the second sector on the first channel during the second time slot based on a sixth interference budget level, the sixth interference budget levels being determined from the third interference budget pattern, said means for scheduling a sixth mobile device being implemented in hardware. 10. In a wireless communications system, an apparatus comprising: a processor configured to: schedule a first mobile device for uplink transmission from a first sector on a first channel during a first time slot based on a first interference budget level; andschedule a second mobile device for uplink transmission from the first sector on the first channel during a second time slot based on a second interference budget level, the first interference budget level and the second interference budget level being identified as a function of time based upon a time varying first interference budget pattern. 11. A wireless communications method, comprising: scheduling a first mobile device for uplink transmission from a first sector on a first channel during a first time slot based on a first interference budget level;scheduling a second mobile device for uplink transmission from the first sector on the first channel during a second time slot based on a second interference budget level, said first interference budget level and said second interference budget level are determined as a function of time from a time varying interference budget pattern; andtransmitting assignments to the first mobile device and the second mobile device related to the scheduled uplink transmissions. 12. The method of claim 11, further comprising: obtaining channel quality reports from one or more mobile device, the channel quality reports include a measurement of an interference ratio between a signal strength from a serving base station to a respective mobile device and a weighted sum of signal strengths from interfering base stations. 13. The method of claim 11, further comprising: scheduling a third mobile device for uplink transmission from the first sector on a second channel during the first time slot based on a third interference budget level; andscheduling a fourth mobile device for uplink transmission from the first sector on the second channel during the second time slot based on a fourth interference budget level, the third and fourth interference budget levels being determined from a second interference budget pattern. 14. The method of claim 11, further comprising: scheduling a fifth mobile device for uplink transmission from a second sector on the first channel during the first time slot based on a fifth interference budget level; andscheduling a sixth mobile device for uplink transmission from the second sector on the first channel during the second time slot based on a sixth interference budget level, the fifth and sixth interference budget levels being determined from a third interference budget pattern and the first and third interference budget patterns being periodical. 15. A non-transitory machine readable medium having stored thereon machine executable instructions which when executed by a processor control the processor to: schedule a first mobile device for uplink transmission from a first sector on a first channel during a first time slot based on a first interference budget level;schedule a second mobile device for uplink transmission from the first sector on the first channel during a second time slot based on a second interference budget level, said first interference budget level and said second interference budget level are determined as a function of time from a time varying interference budget pattern; andtransmit assignments to the first mobile device and the second mobile device related to the scheduled uplink transmissions. 16. The non-transitory machine readable medium of claim 15, further comprising machine executable instructions which when executed by said processor control the processor to: schedule a third mobile device for uplink transmission from the first sector on a second channel during the first time slot based on-a third interference budget level; andschedule a fourth mobile device for uplink transmission from the first sector on the second channel during the second time slot based on a fourth interference budget level, the third and fourth interference budget levels being determined from a second interference budget pattern.
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