Method, network device and computer program product for performing service discovery in a pervasive network
First Claim
1. A method for performing service discovery in a pervasive wireless network comprising a plurality of devices including a network device, a remote device and other devices, the method comprising the network device:
- accessing the remote device to obtain information for establishment of a connection to the remote device;
establishing a connection to the remote device; and
, retrieving information related to services provided by the remote device for configuring connections to the remote device and for using the services;
characterised in that the method comprises the network device forwarding the retrieved information to the other network devices, the other network devices updating lists of services available from the plurality of devices connected to the pervasive network based on the received information.
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Abstract
Described are a method, wireless network device and computer program element each for performing service discovery in a pervasive wireless network (WLAN) operating according to standards such as the Bluetooth standards comprising access protocols and service discovery protocols enabling a network device (CL1):
a) in a first state to access a remote device (SR2) in order to obtain information for the set-up of a connection,
b) in a second state to set up a connection to the remote device (SR2) and retrieve information related to services provided by the remote device (SR2), the discovered information being required to configure connections to the remote device (SR2) and using the related services, and
c) in a third state the device (CL1) publishes and thus actively forwards retrieved service information to other devices (CL2, SR3) which in turn update their lists of services available from devices (CL, SR) connected to the pervasive network (WLAN).
129 Citations
12 Claims
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1. A method for performing service discovery in a pervasive wireless network comprising a plurality of devices including a network device, a remote device and other devices, the method comprising the network device:
- accessing the remote device to obtain information for establishment of a connection to the remote device;
establishing a connection to the remote device; and
, retrieving information related to services provided by the remote device for configuring connections to the remote device and for using the services;
characterised in that the method comprises the network device forwarding the retrieved information to the other network devices, the other network devices updating lists of services available from the plurality of devices connected to the pervasive network based on the received information. - View Dependent Claims (3, 4, 5, 6, 7)
- accessing the remote device to obtain information for establishment of a connection to the remote device;
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2. A method according to claim l,further comprising forwarding service information received by a network device acting as a master to connected network devices acting as slaves and forwarding service information received by a network device acting as slave to connected network devices acting as master.
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8. A wireless network device for performing service discovery in a pervasive wireless network (WLAN), the device comprising:
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means for accessing a remote device to obtain information for the set-up of a connection to the remote device via the network, b) means for establishing a connection to the remote device and for retrieving information related to services provided by the remote device, the retrieved information being for configuring connections to the remote device before using the discovered services, characterised in that the network device comprises a service discovery protocol for forwarding retrieved service information to other devices via the network to facilitate the other devices in updating lists stored therein of services available from devices connected to the network. - View Dependent Claims (9, 10, 11)
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12. A computer program element comprising computer program code which, when loaded in a processor of devices for a data communications network, configures the processor to perform a method for performing service discovery in a pervasive wireless network comprising a plurality of devices including a network device, a remote device and other devices, the method comprising the network device:
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accessing the remote device to obtain information for establishment of a connection to the remote device;
establishing a connection to the remote device; and
, retrieving information related to services provided by the remote device for configuring connections to the remote device and for using the services;
characterised in that the method comprises the network device forwarding the retrieved information to the other network devices, the other network devices updating lists of services available from the plurality of devices connected to the pervasive network based on the received information.
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Specification