Method and apparatus for wireless communication in a high velocity environment
First Claim
1. A method of wireless communication in a high velocity environment comprising:
- maintaining, by a mobile station, a plurality of neighbor sets comprising a High Velocity Neighbor Set and a Neighbor Set, wherein the High Velocity Neighbor Set comprises one or more pilot signals not included in the Neighbor Set;
determining whether the mobile station is operating in a high velocity environment; and
when the mobile station is operating in a high velocity environment, utilizing the High Velocity Neighbor Set for promotion of pilot signals.
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Accused Products
Abstract
A communication system transitions from a high velocity mode of operation to a non-high velocity mode of operation based on a movement of a mobile station. When the communication system is in a high velocity mode of operation, the communication system promotes pilots from a High Velocity Neighbor Set of the mobile station or a controller. When the communication system is in a non-high velocity mode of operation, the communication system promotes pilots from a Neighbor Set of the mobile station or the controller. The communication system may further include a high velocity repeater that, when co-located with the mobile station, is capable of providing a communication link between the mobile station and a radio access network servicing the mobile station.
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Citations
39 Claims
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1. A method of wireless communication in a high velocity environment comprising:
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maintaining, by a mobile station, a plurality of neighbor sets comprising a High Velocity Neighbor Set and a Neighbor Set, wherein the High Velocity Neighbor Set comprises one or more pilot signals not included in the Neighbor Set; determining whether the mobile station is operating in a high velocity environment; and when the mobile station is operating in a high velocity environment, utilizing the High Velocity Neighbor Set for promotion of pilot signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A mobile station comprising:
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at least one memory device that maintains a plurality of neighbor sets, wherein a first neighbor set of the plurality of neighbor sets comprises a Neighbor Set and a second neighbor set of the plurality of neighbor sets comprises a High Velocity Neighbor Set and wherein the High Velocity Neighbor Set comprises one or more pilot signals not included in the Neighbor Set; a processor coupled to the at least one memory device that determines whether the mobile station is operating in a high velocity environment and, in response to determining that the mobile station is operating in a high velocity environment, utilizes the High Velocity Neighbor Set for promotion of pilot signals. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A radio access network controller comprising:
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at least one memory device that maintains a plurality of neighbor sets in association with a mobile station; and a processor coupled to the at least one memory device that determines whether the mobile station is operating in a high velocity environment, when the mobile station is operating in a high velocity environment adjusts a first neighbor set of the plurality of neighbor sets and conveys an instruction to promote a pilot based on the adjustment of the first neighbor set of the plurality of neighbor sets, when the mobile station is not operating in a high velocity environment adjusts a second neighbor set of the plurality of neighbor sets and conveys an instruction to promote a pilot based on the adjustment of the second neighbor set of the plurality of neighbor sets, and wherein the first neighbor set includes one or more pilots not included in the second neighbor set. - View Dependent Claims (28, 29, 30, 31, 32)
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33. A method of operating a mobile station in a high velocity environment comprising:
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determining whether the mobile station is operating in a high velocity environment; maintaining, by a mobile station, a plurality of neighbors sets comprising a Neighbor Set and a High Velocity Neighbor Set, wherein the High Velocity Neighbor Set comprises one or more pilot signals not included in the Neighbor Set; in response to determining that the mobile station is operating in a high velocity environment, searching pilot signals associated with the High Velocity Neighbor Set for a pilot signal stronger than a threshold value; and in response to determining a pilot signal stronger than the threshold value, modifying an Active Set.
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34. A mobile station comprising:
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at least one memory device that maintains a plurality of neighbors sets comprising a Neighbor Set and a High Velocity Neighbor Set, wherein the High Velocity Neighbor Set comprises one or more pilot signals not included in the Neighbor Set; and a processor coupled to the at least one memory device that determines whether the mobile station is operating in a high velocity environment, in response to determining that the mobile station is operating in a high velocity environment, searches pilot signals associated with the High Velocity Neighbor Set for a pilot signal stronger than a threshold value, and in response to determining a pilot signal stronger than the threshold value, modifies an Active Set.
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35. A method for promoting pilot signals in a high velocity environment comprising:
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maintaining, by a mobile station, a plurality of neighbors sets comprising a Neighbor Set and a High Velocity Neighbor Set, wherein the High Velocity Neighbor Set comprises one or more pilot signals not included in the Neighbor Set; searching pilot signals associated with at least one of the Neighbor Set and the High Velocity Neighbor Set for a pilot signal stronger than a threshold value; upon determining a pilot signal stronger than the threshold value, transmitting information concerning the pilot signal; in response to transmitting information concerning the pilot signal, receiving instructions promote the pilot signal to an Active Set; and in response to receiving the instruction, promoting the pilot signal to the Active Set.
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36. A radio access network controller comprising:
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at least one memory device that maintains a plurality of neighbors sets in association with a mobile device, wherein the plurality of neighbors sets comprises a Neighbor Set and a High Velocity Neighbor Set and wherein the High Velocity Neighbor Set comprises one or more pilot signals not included in the Neighbor Set; and a processor coupled to the at least one memory device that receives information from the mobile station concerning a pilot signal stronger than a threshold value, determines that the mobile station is operating in a high velocity environment and, in response to receiving the information and determining that the mobile station is operating in a high velocity environment, adjusts a High Velocity Neighbor Set and conveys information to the mobile station corresponding to the adjustment. - View Dependent Claims (37, 38)
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39. A radio access network controller comprising:
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at least one memory device that maintains a plurality of neighbors sets in association with a mobile device, wherein the plurality of neighbors sets comprises a Neighbor Set and a High Velocity Neighbor Set and wherein the High Velocity Neighbor Set comprises one or more pilot signals not included in the Neighbor Set; and a processor coupled to the at least one memory device that determines that the mobile station is operating in a high velocity environment and, in response to determining that the mobile station is operating in a high velocity environment, conveys a High Velocity Neighbor List to the mobile station.
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Specification