Conveying sector load information to mobile stations
First Claim
Patent Images
1. A system, comprising:
- a plurality of remote stations each comprising a plurality of sectors, wherein each remote station comprises;
a processor which determines sector load information; and
a transmitter which transmits the sector load information; and
a wireless communicator, served by a current serving sector, comprising;
a channel quality estimator which measures the carrier-to-interference (C/I) ratio for each sector in the wireless communicator'"'"'s Active Set (AS);
a memory which stores the carrier-to-interference (C/I) ratio measurements for the sectors in the wireless communicator'"'"'s Active Set (AS); and
a processor which determines a new serving sector based on the carrier-to-interference (C/I) ratio measurements and the sector load information for each of the AS sectors,wherein each sector has a plurality of neighbor sectors, andwherein the current serving sector transmits the sector load information for all neighbor sectors to the wireless communicator.
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Abstract
Improved serving sector selection mechanisms are provided which convey sector load information to a wireless communicator. The wireless communicator can use carrier-to-interference (C/I) ratio measurements and sector load information for each of its Active Set (AS) sectors (or all sectors in its Active Set (AS)) to determine the best serving sector.
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Citations
76 Claims
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1. A system, comprising:
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a plurality of remote stations each comprising a plurality of sectors, wherein each remote station comprises; a processor which determines sector load information; and a transmitter which transmits the sector load information; and a wireless communicator, served by a current serving sector, comprising; a channel quality estimator which measures the carrier-to-interference (C/I) ratio for each sector in the wireless communicator'"'"'s Active Set (AS); a memory which stores the carrier-to-interference (C/I) ratio measurements for the sectors in the wireless communicator'"'"'s Active Set (AS); and a processor which determines a new serving sector based on the carrier-to-interference (C/I) ratio measurements and the sector load information for each of the AS sectors, wherein each sector has a plurality of neighbor sectors, and wherein the current serving sector transmits the sector load information for all neighbor sectors to the wireless communicator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A wireless communicator, served by a current serving sector, comprising:
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a receiver which receives sector load information for each sector in the wireless communicator'"'"'s Active Set (AS); a channel quality estimator which measures the carrier-to-interference (C/I) ratio for each sector in the wireless communicator'"'"'s Active Set (AS); a memory which stores the carrier-to-interference (C/I) ratio measurements for the sectors in the wireless communicator'"'"'s Active Set (AS); and a processor which determines a new serving sector based on the carrier-to-interference (C/I) ratio measurements and sector load information for each of the AS sectors, wherein each sector has a plurality of neighbor sectors, and wherein the current serving sector transmits the sector load information for all neighbor sectors to the wireless communicator. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A method, comprising:
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determining sector load information for a plurality of sectors comprising a current serving sector; transmitting, by a transmitter, the sector load information; and measuring the carrier-to-interference (C/I) ratio for each sector in an Active Set (AS); storing the carrier-to-interference (C/I) ratio measurements for the sectors in the Active Set (AS); and determining a new serving sector based on the carrier-to-interference (C/I) ratio measurements and the sector load information for each of the AS sectors, wherein each sector has a plurality of neighbor sectors, and wherein the current serving sector transmits the sector load information for all neighbor sectors. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53)
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54. A method for use with a wireless communicator being served by a current serving sector, comprising:
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receiving, by a receiver, sector load information for each sector in the wireless communicator'"'"'s Active Set (AS); measuring the carrier-to-interference (C/I) ratio for each sector in the wireless communicator'"'"'s Active Set (AS); storing the carrier-to-interference (C/I) ratio measurements for the sectors in the wireless communicator'"'"'s Active Set (AS); and determining a new serving sector based on the carrier-to-interference (C/I) ratio measurements and sector load information for each of the AS sectors, wherein each sector has a plurality of neighbor sectors, and wherein the current serving sector transmits the sector load information for all neighbor sectors to the wireless communicator. - View Dependent Claims (55, 56, 57, 58, 59, 60, 61, 62)
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63. A wireless communicator being served by a current serving sector, comprising:
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means for receiving sector load information for each sector in the wireless communicator'"'"'s Active Set (AS); means for measuring the carrier-to-interference (C/I) ratio for each sector in the wireless communicator'"'"'s Active Set (AS); means for storing the carrier-to-interference (C/I) ratio measurements for the sectors in the wireless communicator'"'"'s Active Set (AS); and means for determining a new serving sector based on the carrier-to-interference (C/I) ratio measurements and sector load information for each of the AS sectors, wherein each sector has a plurality of neighbor sectors, and wherein the current serving sector transmits the sector load information for all neighbor sectors to the wireless communicator.
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64. A computer-readable storage medium comprising instructions, which, when executed by a wireless communicator being served by a current serving sector, cause the wireless communicator to perform operations, the instructions comprising:
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program code to receive sector load information for each sector in the wireless communicator'"'"'s Active Set (AS); program code to measure the carrier-to-interference (C/I) ratio for each sector in the wireless communicator'"'"'s Active Set (AS); program code to store the carrier-to-interference (C/I) ratio measurements for the sectors in the wireless communicator'"'"'s Active Set (AS); and program code to determine a new serving sector based on the carrier-to-interference (C/I) ratio measurements and sector load information for each of the AS sectors, wherein each sector has a plurality of neighbor sectors, and wherein the current serving sector transmits the sector load information for all neighbor sectors to the wireless communicator.
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65. A system, comprising:
a plurality of remote stations each comprising a plurality of sectors, wherein each remote station comprises; a processor which determines sector load information; and a transmitter which transmits the sector load information; and
a wireless communicator, served by a current serving sector, comprising;a channel quality estimator which measures the carrier-to-interference (C/I) ratio for each sector in the wireless communicator'"'"'s Active Set (AS); a memory which stores the carrier-to-interference (C/I) ratio measurements for the sectors in the wireless communicator'"'"'s Active Set (AS); and a processor which determines a new serving sector based on the carrier-to-interference (C/I) ratio measurements and the sector load information for each of the AS sectors, wherein the sector load information comprises a load information broadcast message comprising PN_OFFSET field which includes PN_OFFSET values and an PN_LOAD field which includes corresponding load value information, and wherein the wireless communicator stores the PN_LOAD value if the value of PN_OFFSET matches any of the AS sector pilots. - View Dependent Claims (66, 67)
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68. A wireless communicator, served by a current serving sector, comprising:
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a receiver which receives sector load information for each sector in the wireless communicator'"'"'s Active Set (AS); a channel quality estimator which measures the carrier-to-interference (C/I) ratio for each sector in the wireless communicator'"'"'s Active Set (AS); a memory which stores the carrier-to-interference (C/I) ratio measurements for the sectors in the wireless communicator'"'"'s Active Set (AS); and a processor which determines a new serving sector based on the carrier-to-interference (C/I) ratio measurements and sector load information for each of the AS sectors, wherein the sector load information comprises a load information broadcast message comprising PN_OFFSET field which includes PN_OFFSET values and an PN_LOAD field which includes corresponding load value information, and wherein the wireless communicator stores the PN_LOAD value if the value of PN_OFFSET matches any of the AS sector pilots. - View Dependent Claims (69, 70)
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71. A method, comprising:
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determining sector load information for a plurality of sectors comprising a current serving sector; transmitting, by a transmitter, the sector load information to a wireless communicator; and measuring the carrier-to-interference (C/I) ratio for each sector in an Active Set (AS); storing the carrier-to-interference (C/I) ratio measurements for the sectors in the Active Set (AS); and determining a new serving sector based on the carrier-to-interference (C/I) ratio measurements and the sector load information for each of the AS sectors, wherein the sector load information comprises a load information broadcast message comprising PN_OFFSET field which includes PN_OFFSET values and an PN_LOAD field which includes corresponding load value information, and wherein the wireless communicator stores the PN_LOAD value if the value of PN_OFFSET matches any of the AS sector pilots. - View Dependent Claims (72, 73)
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74. A method for use with a wireless communicator being served by a current serving sector, comprising:
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receiving sector load information for each sector in the wireless communicator'"'"'s Active Set (AS); measuring the carrier-to-interference (C/I) ratio for each sector in the wireless communicator'"'"'s Active Set (AS); storing the carrier-to-interference (C/I) ratio measurements for the sectors in the wireless communicator'"'"'s Active Set (AS); and determining a new serving sector based on the carrier-to-interference (C/I) ratio measurements and sector load information for each of the AS sectors, wherein the sector load information comprises a load information broadcast message comprising PN_OFFSET field which includes PN_OFFSET values and an PN_LOAD field which includes corresponding load value information, and wherein the wireless communicator stores the PN_LOAD value if the value of PN_OFFSET matches any of the AS sector pilots.
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75. A wireless communicator being served by a current serving sector, comprising:
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means for receiving sector load information for each sector in the wireless communicator'"'"'s Active Set (AS); means for measuring the carrier-to-interference (C/I) ratio for each sector in the wireless communicator'"'"'s Active Set (AS); means for storing the carrier-to-interference (C/I) ratio measurements for the sectors in the wireless communicator'"'"'s Active Set (AS); and means for determining a new serving sector based on the carrier-to-interference (C/I) ratio measurements and sector load information for each of the AS sectors, wherein the sector load information comprises a load information broadcast message comprising PN_OFFSET field which includes PN_OFFSET values and an PN_LOAD field which includes corresponding load value information, and wherein the wireless communicator stores the PN_LOAD value if the value of PN_OFFSET matches any of the AS sector pilots.
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76. A computer-readable storage medium comprising instructions, which, when executed by a wireless communicator being served by a current serving sector, cause the wireless communicator to perform operations, the instructions comprising:
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program code to receive sector load information for each sector in the wireless communicator'"'"'s Active Set (AS); program code to measure the carrier-to-interference (C/I) ratio for each sector in the wireless communicator'"'"'s Active Set (AS); program code to store the carrier-to-interference (C/I) ratio measurements for the sectors in the wireless communicator'"'"'s Active Set (AS); and program code to determine a new serving sector based on the carrier-to-interference (C/I) ratio measurements and sector load information for each of the AS sectors, wherein the sector load information comprises a load information broadcast message comprising PN_OFFSET field which includes PN_OFFSET values and an PN_LOAD field which includes corresponding load value information, and wherein the wireless communicator stores the PN_LOAD value if the value of PN_OFFSET matches any of the AS sector pilots.
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Specification