Method in positioning, a system, and an electronic device
First Claim
1. A method in positioning, in which assistance information of a satellite positioning system is determined, and the assistance information is transmitted to an electronic device, wherein at least one server of the communication system is used for determining the assistance information, the determined assistance information is converted to a meta data format, and the assistance information converted to the meta data format is transmitted to the electronic device, wherein said assistance information is used in the electronic device for positioning, when necessary, wherein for the transmission of the assistance information in the communication network, at least two servers are used, that said at least two servers are divided into a first set of servers and a second set of servers, wherein the servers of the first set are used for receiving satellite signals, generating assistance information on the basis of the received satellite signals, and transmitting the assistance information to at least one server of said second set, and that the assistance information is transmitted to the electronic device from a server of said second set.
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Accused Products
Abstract
The present invention relates to a method in positioning, to determine assistance information of a satellite positioning system. The assistance information is transmitted in a communication system (1) with at least one server (4). The assistance information is transmitted from the communication system (1) to the electronic device (8). At least one server (4) of the communication system is used for determining the assistance information. The determined assistance information is converted to meta data format, and the assistance information converted to meta data format is transmitted to the electronic device (8). In the electronic device (8), said assistance information is used for positioning, when necessary. The invention also relates to a system and an electronic device, in which the method is applied.
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Citations
14 Claims
- 1. A method in positioning, in which assistance information of a satellite positioning system is determined, and the assistance information is transmitted to an electronic device, wherein at least one server of the communication system is used for determining the assistance information, the determined assistance information is converted to a meta data format, and the assistance information converted to the meta data format is transmitted to the electronic device, wherein said assistance information is used in the electronic device for positioning, when necessary, wherein for the transmission of the assistance information in the communication network, at least two servers are used, that said at least two servers are divided into a first set of servers and a second set of servers, wherein the servers of the first set are used for receiving satellite signals, generating assistance information on the basis of the received satellite signals, and transmitting the assistance information to at least one server of said second set, and that the assistance information is transmitted to the electronic device from a server of said second set.
- 6. A system comprising means for determining assistance information of a satellite positioning system, and a communication system comprising at least one server and a transmitting assistance information to an electronic device, wherein, at least one server of the communication system comprises said element for determining assistance information, and a converting element for converting the determined assistance information to a meta data format, wherein said means for transmitting element for transmitting assistance information comprise an element for transmitting the assistance information in meta data format to the electronic device, and the electronic device comprises an element for using the assistance information in meta data format for positioning, when necessary, said system comprising at least two servers for transmitting assistance information, said at least two servers are divided into a first set of servers, and a second set of servers, wherein the servers of the first set comprise a receiver for receiving satellite signals, a generator for generating assistance information on the basis of the received satellite signals, and a transmitter element for transmitting the assistance information to at least one server of said second set, and that the assistance information is arranged to be transmitted to the electronic device from the servers of said second set.
- 13. An electronic device comprising a positioning receiver and which electronic device is arranged to be used in a communication system comprising a determining element for determining assistance information of a satellite positioning system, and the communication system comprising at least one server and a transmitting element for transmitting assistance information to the electronic device, electronic device comprising a receiving element for receiving assistance information transmitted in meta data format to the electronic device, and an element for using the assistance information in meta data format for positioning, when necessary, said device further comprising a receiver for receiving time data of a satellite positioning system from a server of the communication system, determined and converted to a meta data format by the system, a determining element for determining reception data about the receipt of the time data, a transmitting element for transmitting said reception data from the electronic device, and a receiving element for receiving information about the round trip delay from the system, determined by the system by measuring the time passed between the transmission of the time data from the server and the reception of the reception data at the server, the electronic device further comprising a setting element for using the received time data and information about the round trip delay to set the time data of the electronic device to comply with the time data of the satellite positioning system.
Specification