User equipment cellular identification
First Claim
1. A method of determining user equipment cell identification in a communication system, the method comprising:
- receiving cell identification with user equipment;
tracking cell identification age with user equipment after receiving;
comparing the cell identification age to a predefined value, wherein outcome of comparing the cell identification age to the predefined value provides information about quality of the cell identification, wherein the cell identification age continues to increase past the predefined value until a new cell identification is received; and
transmitting the cell identification and the cell identification age from the user equipment to a network,wherein the cell identification age is the difference between the time that the cell identification is transmitted from the user equipment to the network and the time that the user equipment received the cell identification;
wherein when the cell identification age is less than the predefined value, the cell identification is used for determining position information of the user equipment, and when the cell identification age is greater than the predefined value, the new cell identification received from an ATI (Any Time Interrogation) to a HLR (home location registry) is used for determining position of the user equipment.
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Accused Products
Abstract
A method and apparatus for determining user equipment cell identification examines the age of the cell identification known to the user equipment when determining whether to use that cell identification or to obtain the cell identification through alternate means. The age of the cell identification known to the user equipment is examined by the user equipment, the communication system, or both by comparing the age to a predefined value. The age indicator can be transmitted by the user equipment to a network. If the age exceeds a predefined value, then the cell identification is obtained through network procedures. If the age is less than a predefined value then the cell identification known to the user equipment is accepted as current. Position information for the user equipment can be based upon the cell identification known to the user equipment or as obtained through network procedures.
7 Citations
25 Claims
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1. A method of determining user equipment cell identification in a communication system, the method comprising:
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receiving cell identification with user equipment; tracking cell identification age with user equipment after receiving; comparing the cell identification age to a predefined value, wherein outcome of comparing the cell identification age to the predefined value provides information about quality of the cell identification, wherein the cell identification age continues to increase past the predefined value until a new cell identification is received; and transmitting the cell identification and the cell identification age from the user equipment to a network, wherein the cell identification age is the difference between the time that the cell identification is transmitted from the user equipment to the network and the time that the user equipment received the cell identification; wherein when the cell identification age is less than the predefined value, the cell identification is used for determining position information of the user equipment, and when the cell identification age is greater than the predefined value, the new cell identification received from an ATI (Any Time Interrogation) to a HLR (home location registry) is used for determining position of the user equipment. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of determining user equipment cell identification in a communication system, the method comprising:
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receiving cell identification with user equipment; tracking cell identification age with user equipment after receiving; comparing the cell identification age to a predefined value, wherein outcome of comparing the cell identification age to the predefined value provides information about quality of the cell identification, wherein the cell identification age continues to increase past the predefined value until a new cell identification is received; and transmitting the cell identification and the cell identification age from the user equipment to a network, wherein the cell identification age is the difference between the time that the cell identification is transmitted from the user equipment to the network and the time that the user equipment received the cell identification; wherein when the cell identification age is less than the predefined value, the cell identification is used for determining position information of the user equipment, and when the cell identification age is greater than the predefined value, the new cell identification received from an ATI (Any Time Interrogation) to a HLR (home location registry) is used for determining position of the user equipment. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for determining user equipment cell identification in a communication system, comprising:
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user equipment comprising; means for receiving cell identification; means for tracking cell identification age after receiving; means for comparing the cell identification age to a predefined value, wherein outcome of comparing the cell identification age to the predefined value provides information about quality of the cell identification, wherein the cell identification age continues to increase past the predefined value until a new cell identification is received; and means for transmitting the cell identification and the cell identification age to a network, wherein the cell identification age is the difference between the time that the cell identification is transmitted from the user equipment to the network and the time that the user equipment received the cell identification; wherein when the cell identification age is less than the predefined value, the cell identification is used for determining position information of the user equipment, and when the cell identification age is greater than the predefined value, the new cell identification received from an ATI (Any Time Interrogation) to a HLR (home location registry) is used for determining position of the user equipment. - View Dependent Claims (18)
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19. A computer readable medium tangibly embodying instructions for performing the steps of:
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comparing a cell identification age to a predefined value at a network, wherein outcome of comparing the cell identification age to the predefined value provides information about quality of cell identification, wherein the cell identification age continues to increase past the predefined value until a new cell identification is received; and according to the outcome of the comparing step, obtaining the cell identification through a network procedure in response to the cell identification age is greater than the predefined value or accepting cell identification received from user equipment in response to the cell identification age is less than the predefined value, wherein the cell identification age is the difference between the time that the cell identification is transmitted from the user equipment to the network and the time that the user equipment received the cell identification; wherein when the cell identification age is less than the predefined value, the cell identification is used for determining position information of the user equipment, and when the cell identification age is greater than the predefined value, the new cell identification received from an ATI (Any Time Interrogation) to a HLR (home location registry) is used for determining position of the user equipment. - View Dependent Claims (20, 21)
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22. A user equipment, comprising:
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a two way communication system configured to transmit and receive signals via a first antenna; a position location system configured to receive satellite vehicle signals via a second antenna; a device control system, wherein the device control system includes control logic configured to receive cell identification, track cell identification age after receiving, compare the cell identification age to a predefined value, wherein outcome of comparing the cell identification age to the predefined value provides information about quality of the cell identification, wherein the cell identification age continues to increase past the predefined value until a new cell identification is received, and transmit cell identification and the cell identification age to a network, wherein the cell identification age is the difference between the time that the cell identification is transmitted from the user equipment to the network and the time that the user equipment received the cell identification; wherein when the cell identification age is less than the predefined value, the cell identification is used for determining position information of the user equipment, and when the cell identification age is greater than the predefined value, the new cell identification received from an ATI (Any Time Interrogation) to a HLR (home location registry) is used for determining position of the user equipment. - View Dependent Claims (23, 24, 25)
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Specification