Method of handoff within a telecommunications system containing digital base stations with different spectral capabilities
First Claim
1. A method of facilitating a remote station hand-off, comprising:
- receiving signals in a first frequency band in accordance with a single carrier protocol at said remote station;
transmitting signal strength measurements of various base stations in a first message from said remote station; and
receiving a second message at said remote station that indicates that said remote station should begin receiving signals in accordance with a multi-carrier protocol in a second frequency band that is larger than said first frequency band, wherein the second message is responsive to a determination that at least one of various base stations is single-carrier compliant and at least one of various base stations is multi-carrier compliant.
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Abstract
The present invention is directed to a digital wireless telecommunications system that includes a plurality of base station of differing spectral capabilities, and a plurality of remote stations capable of transmitting data to and receiving transmissions from the plurality of base stations. The invention herein provides a method for remote station hand-off between base stations of a narrower spectral capacity and base stations of a wider spectral capacity. A method is provided for a wireless telecommunications infrastructure to facilitate a remote station hand-off from a set of narrowband compliant base stations to at least one wideband compliant base station while a remote station is in the coverage area of both types of base stations. Additionally, the invention herein provides remote station apparatus, base station apparatus, and base station controller apparatus for performing the handoff methodology of the present invention.
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Citations
11 Claims
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1. A method of facilitating a remote station hand-off, comprising:
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receiving signals in a first frequency band in accordance with a single carrier protocol at said remote station; transmitting signal strength measurements of various base stations in a first message from said remote station; and receiving a second message at said remote station that indicates that said remote station should begin receiving signals in accordance with a multi-carrier protocol in a second frequency band that is larger than said first frequency band, wherein the second message is responsive to a determination that at least one of various base stations is single-carrier compliant and at least one of various base stations is multi-carrier compliant. - View Dependent Claims (2, 3, 4)
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5. A remote station, comprising:
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means for receiving signals in a first frequency band in accordance with a single carrier protocol; means for transmitting signal strength measurements of various base stations in a first message; and means for receiving a second message that indicates that said remote station should begin receiving signals in accordance with a multi-carrier protocol in a second frequency band that is larger than said first frequency band, wherein the second message is responsive to a determination that at least one of various base stations is single-carrier compliant and at least one of various base stations is multi-carrier compliant. - View Dependent Claims (6, 7, 8)
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9. A computer readable media embodying a method comprising of facilitating a remote station hand-off, the method comprising:
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receiving signals in a first frequency band in accordance with a single carrier protocol at said remote station; transmitting signal strength measurements of various base stations in a first message from said remote station; and receiving a second message at said remote station that indicates that said remote station should begin receiving signals in accordance with a multi-carrier protocol in a second frequency band that is larger than said first frequency band, wherein the second message is responsive to a determination that at least one of various base stations is single-carrier compliant and at least one of various base stations is multi-carrier compliant.
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10. A computer readable media embodying a method comprising of facilitating a remote station hand-off, the method comprising:
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receiving signals in a first frequency band in accordance with a single carrier protocol at said remote station; transmitting signal strength measurements of various base stations in a first message from said remote station; and receiving a second message at said remote station that indicates that said remote station should begin receiving messages in accordance with a multi-carrier protocol in a second frequency band that is larger than said first frequency band, and wherein said second message also indicates that said remote station should begin transmitting messages in accordance with said multi-carrier protocol on a second frequency band that is larger than said first frequency band, and further, wherein the second message is responsive to a determination that at least one of various base stations is single-carrier compliant and at least one of various base stations is multi-carrier compliant. - View Dependent Claims (11)
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Specification