Method and apparatus for performing radio link timer management in a wireless communications network
First Claim
1. A radio link timer (RLT) of a mobile system (MS) of a wireless communications network, the RLT comprising:
- first logic configured to receive frame error rate (FER) information relating to a number of speech frames that a decoder of the MS was incapable of successfully decoding; and
second logic configured to make a determination as to whether or not a call should be released based on the FER information.
9 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for performing radio link timer (RLT) management in a wireless network. The method and apparatus examine the frame error rates (FERS) associated with decoded speech or data frames and determine how many speech or data frames are unacceptable. If the number of speech or data frames that is unacceptable exceeds a preset threshold value, a determination is made that the call should be released. This process is performed in both the uplink and downlink directions and determinations as to whether the call should be released are made by the mobile station (MS), the base station system (BSS) or mobile switching center (MSC) for the downlink direction and by the base station system (BSS) for the uplink direction. If a determination is made that the number of unacceptable speech or data frames exceeds the preset threshold, the call is released.
9 Citations
42 Claims
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1. A radio link timer (RLT) of a mobile system (MS) of a wireless communications network, the RLT comprising:
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first logic configured to receive frame error rate (FER) information relating to a number of speech frames that a decoder of the MS was incapable of successfully decoding; and
second logic configured to make a determination as to whether or not a call should be released based on the FER information. - View Dependent Claims (2)
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3. A radio link timer (RLT) of a mobile system (MS) of a wireless communications network, the RLT comprising:
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first logic configured to receive frame error rate (FER) information relating to a number of speech frames that a decoder of the MS was incapable of successfully decoding, said number of speech frames corresponding to a value of a first parameter, NFDL; and
second logic configured to make a determination as to whether or not a call should be released based on the FER information, the second logic making the determination by determining whether the number of speech frames that the decoder was incapable of decoding exceeds a value of a second parameter, NBFDL, the value of the second parameter NBFDL being less than the value of the first parameter NFDL.
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4. A radio link timer (RLT) of a base station system (BSS) of a wireless communications network, the RLT comprising:
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first logic configured to receive frame error rate (FER) information relating to a number of speech frames that a decoder of the BS was incapable of successfully decoding; and
second logic configured to make a determination as to whether or not a call should be released based on the FER information. - View Dependent Claims (5)
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6. A radio link timer (RLT) of a base station system (BSS) of a wireless communications network, the RLT comprising:
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first logic configured to receive frame error rate (BER) information relating to a number of speech frames that a decoder of the BSS was incapable of successfully decoding, said number of speech frames corresponding to a value of a first parameter, NFUL; and
second logic configured to make a determination as to whether or not a call should be released based on the FER information, the second logic making the determination by determining whether the number of speech frames that the decoder was incapable of decoding exceeds a value of a second parameter, NBFUL, the value of the second parameter NBFUL being less than the value of the first parameter NFUL.
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7. A method for determining whether a call is to be released by a mobile station (MS), the MS including a radio link timer (RLT) that the MS uses to determine whether or not to release the call, the method comprising:
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decoding a plurality of consecutive speech frames associated with a call in which the MS is participating;
determining a frame error rate (FER) associated with each of the speech frames; and
based on the FERs associated with the speech frames, determining whether to release the call. - View Dependent Claims (8, 9)
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10. A method for determining whether a call is to be released by a base station system (BSS), the BSS including a radio link timer (RLT) that the BSS uses to determine whether or not to release the call, the method comprising:
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decoding a plurality of consecutive speech frames associated with a call in which the BSS is participating;
determining a frame error rate (FER) associated with each of the speech frames; and
based on the FERs associated with the speech frames, determining whether to release the call. - View Dependent Claims (11, 12)
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13. A computer program for determining whether a call is to be released by a mobile station (MS), the MS including a radio link timer (RLT) that the MS uses to determine whether or not to release the call, the program being embodied on a computer readable medium, the computer program comprising:
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a first code segment for decoding a plurality of consecutive speech frames associated with a call in which the MS is participating;
a second code segment for determining a frame error rate (FER) associated with each of the speech frames; and
a third code segment for determining, based on the FERs associated with the speech frames, whether to release the call. - View Dependent Claims (14, 15)
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16. A computer program for determining whether a call is to be released by a base station system (BSS), the BSS including a radio link timer (RLT) that the BSS uses to determine whether or not to release the call, the computer program being embodied on a computer readable medium, the program comprising:
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a first code segment for decoding a plurality of consecutive speech frames associated with a call in which the BSS is participating;
a second code segment for determining a frame error rate (FER) associated with each of the speech frames; and
a third code segment for determining, based on the FERs associated with the speech frames, whether to release the call. - View Dependent Claims (17, 18)
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19. A radio link timer (RLT) of a mobile system (MS) of a wireless circuit-switched communications network, the RLT comprising:
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first logic configured to receive frame error rate (FER) information relating to a number of data frames that a decoder of the MS was incapable of successfully decoding; and
second logic configured to make a determination as to whether or not a call should be released based on the FER information. - View Dependent Claims (20)
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21. A radio link timer (RLT) of a mobile system (MS) of a wireless communications circuit-switched network, the RLT comprising:
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first logic configured to receive frame error rate (FER) information relating to a number of data frames that a decoder of the MS was incapable of successfully decoding, said number of data frames corresponding to a value of a first parameter, NFDL; and
second logic configured to make a determination as to whether or not a call should be released based on the FER information, the second logic making the determination by determining whether the number of data frames that the decoder was incapable of decoding exceeds a value of a second parameter, NBFDL, the value of the second parameter NBFDL being less than the value of the first parameter NFDL.
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22. A radio link timer (RLT) of a base station system (BSS) of a wireless communications circuit-switched network, the RLT comprising:
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first logic configured to receive frame error rate (FER) information relating to a number of data frames that a decoder of the BSS was incapable of successfully decoding; and
second logic configured to make a determination as to whether or not a call should be released based on the FER information. - View Dependent Claims (23)
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24. A radio link timer (RLT) of a base station system (BSS) of a wireless communications circuit-switched network, the RLT comprising:
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first logic configured to receive frame error rate (FER) information relating to a number of data frames that a decoder of the BSS was incapable of successfully decoding, said number of data frames corresponding to a value of a first parameter, NFUL; and
second logic configured to make a determination as to whether or not a call should be released based on the FER information, the second logic making the determination by determining whether the number of data frames that the decoder was incapable of decoding exceeds a value of a second parameter, NBFUL, the value of the second parameter NBFUL being less than the value of the first parameter NFUL.
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25. A method for determining whether a call is to be released by a mobile station (MS), the MS including a radio ink timer (RLT) that the MS uses to determine whether or not to release the call, the method comprising:
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decoding a plurality of consecutive data frames associated with a call in which the MS is participating;
determining a frame error rate (FER) associated with each of the data frames; and
based on the FERs associated with the data frames, determining whether to release the call. - View Dependent Claims (26, 27)
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28. A method for determining whether a call is to be released by a base station system (BSS), the BSS including a radio link timer (RLT) that the BSS uses to determine whether or not to release the call, the method comprising:
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decoding a plurality of consecutive data frames associated with a call in which the BS is participating;
determining a frame error rate (FER) associated with each of the data frames; and
based on the FERs associated with the data frames, determining whether to release the call. - View Dependent Claims (29, 30)
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31. A computer program for determining whether a call is to be released by a mobile station (MS), the MS including a radio link timer (RLT) that the MS uses to determine whether or not to release the call, the program being embodied on a computer readable medium, the computer program comprising:
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a first code segment for decoding a plurality of consecutive data frames associated with a call in which the MS is participating;
a second code segment for determining a frame error rate (FER) associated with each of the data frames; and
a third code segment for determining, based on the FERs associated with the data frames, whether to release the call. - View Dependent Claims (32, 33)
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34. A computer program for determining whether a call is to be released by a base station (BSS), the BSS including a radio link timer (RLT) that the BSS uses to determine whether or not to release the call, the computer program being embodied on a computer readable medium, the program comprising:
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a first code segment for decoding a plurality of consecutive data frames associated with a call in which the BSS is participating;
a second code segment for determining a frame error rate (FER) associated with each of the data frames; and
a third code segment for determining, based on the FERs associated with the data frames, whether to release the call. - View Dependent Claims (35, 36)
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37. A radio link timer (RLT) of a mobile switching center (MSC) of a wireless communications network, the RLT comprising:
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first logic configured to receive frame error rate (FER) information relating to a number of frames that a decoder of the mobile station (MS) was incapable of successfully decoding; and
second logic configured to make a determination as to whether or not a call should be released based on the FER information. - View Dependent Claims (38)
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39. A radio link timer (RLT) of a mobile switching center (MSC) of a wireless communications network, the RLT comprising:
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first logic configured to receive frame error rate (FER) information relating to a number of frames that a decoder of a mobile station (MS) was incapable of successfully decoding, said number of frames corresponding to a value of a first parameter, NFDL; and
second logic configured to make a determination as to whether or not a call should be released based on the FER information, the second logic making the determination by determining whether the number of frames that the decoder was incapable of decoding exceeds a value of a second parameter, NBFDL, the value of the second parameter NBFDL being less than the value of the first parameter NFDL.
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40. A method for determining whether a call is to be released by a mobile switching center (MSC), the MSC including a radio link timer (RLT) that the MSC uses to determine whether or not to release the call, the method comprising:
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decoding a plurality of consecutive frames associated with a call in which a mobile station associated with the MSC is participating;
determining a frame error rate (FER) associated with each of the frames; and
based on the FERs associated with the frames, determining whether to release the call.
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41. The method of claim 41, wherein said step of determining a frame error rate (FER) includes:
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selecting a number of frames to be monitored and setting a first parameter NFDL to a value equal to the number of frames to be monitored;
selecting a number of bad frames that is acceptable and setting a second parameter NBFDL to a value equal to the number of bad frames that is acceptable; and
determining the FER for all of the frames being monitored. - View Dependent Claims (42)
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Specification