Synchronization indication in networks
First Claim
1. A method, comprising:
- receiving, at a terminal apparatus, a transmission from a network, wherein the transmission includes global navigation satellite system time-cell time relation information, and wherein the transmission includes a network synchronization status flag;
performing, at the terminal apparatus, based on the network synchronization status flag, a determination of a synchronization status of the network from the transmission, wherein the transmission comprises assistance data, and wherein the synchronization status is that cells within the network are synchronized;
the network is a synchronous network rather than an asynchronous network;
maintaining in a first cell within the network, at the terminal apparatus using said global navigation satellite system time-cell time relation information, accurate time based on the synchronization status of the network; and
performing in the first cell within the network, at the terminal apparatus using said accurate time maintained in said first cell, global navigation satellite system satellite signal quick find using predicted or reduced code phases and frequency search space.
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Accused Products
Abstract
Systems and methods provide a network'"'"'s synchronization status to a terminal when the terminal receives a transmission from the network. This network synchronization status can be indicated in accordance with various methods including, but not limited to the following: with a status flag in a network message; in a network capability indication; in a network'"'"'s positioning capability indication; cell/network time relation information; in a time relation information of different Radio Access Technologies; and implicitly with another parameter and/or by a request for a certain measurement. When the network'"'"'s synchronization status is determined, accurate time information/time assistance data can be maintained at the terminal.
72 Citations
20 Claims
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1. A method, comprising:
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receiving, at a terminal apparatus, a transmission from a network, wherein the transmission includes global navigation satellite system time-cell time relation information, and wherein the transmission includes a network synchronization status flag; performing, at the terminal apparatus, based on the network synchronization status flag, a determination of a synchronization status of the network from the transmission, wherein the transmission comprises assistance data, and wherein the synchronization status is that cells within the network are synchronized;
the network is a synchronous network rather than an asynchronous network;maintaining in a first cell within the network, at the terminal apparatus using said global navigation satellite system time-cell time relation information, accurate time based on the synchronization status of the network; and performing in the first cell within the network, at the terminal apparatus using said accurate time maintained in said first cell, global navigation satellite system satellite signal quick find using predicted or reduced code phases and frequency search space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus, comprising:
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at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured with the at least one processor, to cause the apparatus to perform at least the following; receive a transmission from a network, wherein the transmission includes global navigation satellite system time-cell time relation information, and wherein the transmission includes a network synchronization status flag; perform, based on the network synchronization status flag, a determination of a synchronization status of the network from the transmission, wherein the transmission comprises assistance data, and wherein the synchronization status is that cells within the network are synchronized;
the network is a synchronous network rather than an asynchronous network;maintain in a first cell within the network, using said global navigation satellite system time-cell time relation information, accurate time based on the synchronization status of the network; and perform in the first cell within the network, using said accurate time maintained in said first cell, global navigation satellite system satellite signal quick find using predicted or reduced code phases and frequency search space. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A computer program product comprising computer executable program code recorded on a computer readable, non-transitory storage medium, the computer executable program code comprising:
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code for receiving, at a terminal apparatus, a transmission from a network, wherein the transmission includes global navigation satellite system time-cell time relation information, and wherein the transmission includes a network synchronization status flag; code for performing, at the terminal apparatus, based on the network synchronization status flag, a determination of a synchronization status of the network from the transmission, wherein the transmission comprises assistance data, and wherein the synchronization status is that cells within the network are synchronized;
the network is a synchronous network rather than an asynchronous network;code for maintaining in a first cell within the network, at the terminal apparatus using said global navigation satellite system time-cell time relation information, accurate time based on the synchronization status of the network; and code for performing in the first cell within the network, at the terminal apparatus using said accurate time maintained in said first cell, global navigation satellite system satellite signal quick find using predicted or reduced code phases and frequency search space.
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Specification