Dynamic adjustment of forward-link traffic-channel power levels based on forward-link RF conditions
First Claim
1. A method comprising:
- a base station providing service on a carrier in a wireless coverage area;
computing an Ec/Ior value for the carrier, wherein the computed Ec/Ior value comprises a logarithmic ratio of a pilot-channel power level to an all-channel power level,wherein the pilot-channel power level is the amount of power the base station is allocating for transmitting a pilot channel on a forward link of the carrier, andwherein the all-channel power level is the total amount of power the base station is allocating for transmitting all channels, including the pilot channel, on the forward link of the carrier; and
adjusting an initial traffic-channel power level for the carrier based at least in part on the computed Ec/Ior value,wherein the initial traffic-channel power level is a power level at which, on a coverage-area-wide basis, and for all traffic channels assigned by the base station on the carrier before any next such adjustment is made, the base station initially transmits on the forward link to mobile stations operating on the carrier, andwherein a plurality of traffic channels are assigned by the base station on the carrier before any next such adjustment is made.
6 Assignments
0 Petitions
Accused Products
Abstract
Methods and systems are provided for dynamic adjustment of forward-link traffic-channel power levels based on forward-link RF conditions. In an exemplary embodiment, a base station provides service on a carrier in a wireless coverage area. The base station computes an Ec/Ior value for the carrier. Based at least in part on the computed Ec/Ior value, the base station adjusts at least one of an initial traffic-channel power level, a minimum traffic-channel power level, and a maximum traffic-channel power level for the carrier. As an example, if Ec/Ior is above a certain threshold, the base station may increase all three of the power levels, so as to improve service quality and coverage of its traffic channels, among other advantages.
-
Citations
15 Claims
-
1. A method comprising:
-
a base station providing service on a carrier in a wireless coverage area; computing an Ec/Ior value for the carrier, wherein the computed Ec/Ior value comprises a logarithmic ratio of a pilot-channel power level to an all-channel power level, wherein the pilot-channel power level is the amount of power the base station is allocating for transmitting a pilot channel on a forward link of the carrier, and wherein the all-channel power level is the total amount of power the base station is allocating for transmitting all channels, including the pilot channel, on the forward link of the carrier; and adjusting an initial traffic-channel power level for the carrier based at least in part on the computed Ec/Ior value, wherein the initial traffic-channel power level is a power level at which, on a coverage-area-wide basis, and for all traffic channels assigned by the base station on the carrier before any next such adjustment is made, the base station initially transmits on the forward link to mobile stations operating on the carrier, and wherein a plurality of traffic channels are assigned by the base station on the carrier before any next such adjustment is made. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A base station comprising:
-
a wireless-communication interface; a processor; and data storage containing instructions executable by the processor for; providing service on a carrier in a wireless coverage area; computing an Ec/Ior value for the carrier, wherein the computed Ec/Ior value comprises a logarithmic ratio of a pilot-channel power level to an all-channel power level, wherein the pilot-channel power level is the amount of power the base station is allocating for transmitting a pilot channel on a forward link of the carrier, and wherein the all-channel power level is the total amount of power the base station is allocating for transmitting all channels, including the pilot channel, on the forward link of the carrier; and adjusting an initial traffic-channel power level for the carrier based at least in part on the computed Ec/Ior value, wherein the initial traffic-channel power level is a power level at which, on a coverage-area-wide basis, and for all traffic channels assigned by the base station on the carrier before any next such adjustment is made, the base station initially transmits on the forward link to mobile stations operating on the carrier, and wherein a plurality of traffic channels are assigned before any next such adjustment is made. - View Dependent Claims (15)
-
Specification