초록 ▼

There is disclosed, for use in a CDMA wireless network, a base station capable of performing a soft handoff of a mobile station while the mobile station is still in the process of first accessing the wireless network. The base station comprises a receiver for receiving from the mobile station a syst

There is disclosed, for use in a CDMA wireless network, a base station capable of performing a soft handoff of a mobile station while the mobile station is still in the process of first accessing the wireless network. The base station comprises a receiver for receiving from the mobile station a system access message that initiates in the wireless network a system access procedure that establishes a communications channel between the mobile station and the CDMA-based wireless network. The base station also comprises a handoff controller, coupled to the receiver and receiving the system access message therefrom. The handoff controller prepares another selected base station in the CDMA-based wireless network to take control over the system access procedure by sending a handoff control message that initiates in the selected base station a handoff procedure capable of assuming control over the system access procedure. This handoff procedure is speculatively initiated in anticipation of a later handoff by the mobile station.

대표청구항 ▼

There is disclosed, for use in a CDMA wireless network, a base station capable of performing a soft handoff of a mobile station while the mobile station is still in the process of first accessing the wireless network. The base station comprises a receiver for receiving from the mobile station a syst

There is disclosed, for use in a CDMA wireless network, a base station capable of performing a soft handoff of a mobile station while the mobile station is still in the process of first accessing the wireless network. The base station comprises a receiver for receiving from the mobile station a system access message that initiates in the wireless network a system access procedure that establishes a communications channel between the mobile station and the CDMA-based wireless network. The base station also comprises a handoff controller, coupled to the receiver and receiving the system access message therefrom. The handoff controller prepares another selected base station in the CDMA-based wireless network to take control over the system access procedure by sending a handoff control message that initiates in the selected base station a handoff procedure capable of assuming control over the system access procedure. This handoff procedure is speculatively initiated in anticipation of a later handoff by the mobile station. rst binder group segment and the second binder group segment associated with the second subscriber line. 2. The communication system of claim 1, wherein: each of the plurality of subscriber lines comprises a plurality of binder group segments; and the memory stores attenuation information for a particular subscriber line indexed by the binder group segments of the particular subscriber line. 3. The communication system of claim 1, wherein: the memory stores noise information for the second subscriber line; and the processor is further operable to determine the data rate capacity of the first subscriber line using the noise information associated with the second subscriber line. 4. The communication system of claim 1, wherein: a third subscriber line comprises the second binder group segment; the memory stores attenuation information for the second binder group segment associated with the third subscriber line; and the processor determines the data rate capacity of the first subscriber line using the attenuation information for the second binder group segment associated with the third subscriber line. 5. The communication system of claim 1, wherein: the first subscriber line comprises a plurality of binder group segments; the memory stores attenuation information for at least one of the binder group segments of the first subscriber line; the second subscriber line comprises a plurality of binder group segments; and the processor determines the attenuation information of at least one of the binder group segments of the second subscriber line using the attenuation information stored for at least one of the binder group segments of the first subscriber line. 6. The communication system of claim 1, wherein: the communication server comprises a first communication device operable to communicate a signal at a transmit power using a particular subscriber line; a subscriber coupled to the communication server using the particular subscriber line comprises a second communication device operable to receive the signal at a receive power; and the processor is operable to determine the attenuation information for the particular subscriber line using the transmit power and the receive power of the signal. 7. The communication system of claim 6, wherein the memory stores the determined attenuation information indexed by the particular subscriber line. 8. The communication system of the claim 6, wherein: the particular subscriber line comprises a plurality of binder group segments; the processor is operable to determine the attenuation information for each binder group segment of the particular subscriber line; and the memory stores the attenuation information for the particular subscriber line indexed by the binder group segments. 9. The communication system of claim 1, wherein: the first subscriber line is associated with a particular binder group; the memory stores information for the number and type of disturbers associated with the particular binder group; and the processor is operable to determine the noise information for the first subscriber line using the information for the number and type of disturbers. 10. The communication system of claim 1, wherein: the communication server comprises a first communication device operable to communicate a signal using a particular subscriber line; a subscriber coupled to the communication server using the particular subscriber line comprises a second communication device operable to receive the signal and to determine noise information of the signal for communication to the first communication device; and the processor is further operable to determine noise information for the particular subscriber line based upon the noise information of the signal. 11. The communication system of claim 10, wherein: the particular subscriber line supports communication using a particular frequency spectrum; and the processor determines the noise informa tion of the signal for the frequency spectrum using noise information for the signal measured for a sub-frequency of the frequency spectrum. 12. The communication system of claim 1, wherein the first subscriber line supports uplink and downlink data communication and the data rate capacity comprises a first data rate capacity associated with the uplink data communication and a second data rate capacity associated with the downlink data communication. 13. The communication system of claim 1, wherein: the communication server comprises a first communication server; the communication system further comprises a second communication server coupled to the subscribers; and the memory is further operable to store first subscriber line information received from the first communication server and second subscriber line information received from the second communication server. 14. A method for determining the data rate capacity of a twisted pair subscriber line, comprising: storing attenuation information and noise information for a plurality of twisted pair subscriber lines that couple a plurality of subscribers to a communication server, wherein a first subscriber line comprises a first binder group segment and a second binder group segment, and a second subscriber line comprises the first binder group segment and the second binder group segment; and determining the data rate capacity of the first subscriber line using noise information stored for the first binder group segment and the second binder group segment associated with the second subscriber line. 15. The method of claim 14, wherein each of the plurality of subscriber lines comprises a plurality of binder group segments, and further comprising the attenuation information and the noise information for a particular subscriber line by the binder group segments of the particular subscriber line. 16. The method of claim 14, wherein: storing comprises storing attenuation information for the first binder group segment and the second binder group segment associated with the second subscriber line; and determining comprises determining the data rate capacity of the first subscriber line using the attenuation information for the first binder group segment and the second binder group segment associated with the second subscriber line. 17. The method of claim 14, wherein: a third subscriber line comprises the second binder group segment; storing comprises storing attenuation information for the second binder group segment associated with the third subscriber line; and determining comprises determining the data rate capacity of the first subscriber line using the attenuation information for the second binder group segment associated with the third subscriber line. 18. The method of claim 14, wherein the first subscriber line comprises a plurality of binder group segments and the second subscriber line comprises a plurality of binder group segments, the method further comprising: storing attenuation information for at least one of the binder group segments of the first subscriber line; and determining the attenuation information of at least one of the binder group segments of the second subscriber line using the attenuation information stored for at least one of the binder group segments of the first subscriber line. 19. The method of claim 14, further comprising: communicating a signal at a transmit power using a particular subscriber line; receiving the signal at a receive power; and determining the attenuation information for the particular subscriber line using the transmit power and the receive power of the signal. 20. The method of claim 19, wherein storing comprises storing the determined attenuation information indexed by the particular subscriber line. 21. The method of claim 19, wherein the particular subscriber line comprises a plurality of binder group segments, the method further comprising: determining the attenuation information fo