Operating method for a wpan device
AssigneeElectronics and Telecommunications Research Institute
InventorsWun-Cheol Jeong, Chang-Sub Shin, Anseok Lee, Seong-Soon Joo, Jong Suk Chae
Life of this patent
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Abstract
A method of operating a device capable of periodically hopping a predetermined interval using a channel hopping sequence in order to improve low radio frequency (RF) reliability caused by single frequency based channel access.
Claims30
A method of operating a wireless personal area network (WPAN) device, the method comprising:
- generating an association request primitive used to allow the WPAN device to request an association to a coordinator,
- wherein the association request primitive comprises:
- a first parameter indicating an offset value of a channel hopping sequence;
- and
- a second parameter indicating a usage of a default channel hopping sequence.
A method of operating a WPAN device, the method comprising:
- generating an association indication primitive used to indicate a receipt of an association request command,
- wherein the association indication primitive comprises:
- a first parameter indicating an offset value of a channel hopping sequence;
- and
- a second parameter indicating a usage of a default channel hopping sequence.
A method of operating a WPAN device, the method comprising:
- generating an association response primitive used to initiate a response to an association indication primitive,
- wherein the association response primitive comprises:
- a first parameter indicating an offset value of a channel hopping sequence;
- a second parameter indicating a length of the channel hopping sequence;
- and
- a third parameter indicating a sequence of logical channel numbers set by a next higher layer (NHL).
A method of operating a WPAN device, the method comprising:
- generating an association confirm primitive used to notify an NHL of an initiation device whether an association request is successful,
- wherein the association confirm primitive comprises:
- a first parameter indicating an offset value of a channel hopping sequence;
- a second parameter indicating a length of the channel hopping sequence;
- and
- a third parameter indicating a sequence of logical channel numbers set by an NHL.
A method of operating a WPAN device, the method comprising:
- generating an indication primitive defining a method of notifying the WPAN device of a time when a beacon is received under normal operating conditions,
- wherein the indication primitive comprises:
- a parameter including a description of a channel hopping specification.
A method of operating a WPAN device, the method comprising:
- receiving a request primitive used to allow transmission of a slot allocation request to a PAN coordinator or a destination device;
- and
- applying channel diversity including a channel adaptation mode and a channel hopping mode to a slot allocation according to flag information included in the request primitive.
A method of operating a WPAN device, the method comprising:
- generating a start request primitive including a descriptor regarding a received beacon,
- wherein the descriptor comprises:
- a first element indicating a usage of a default channel hopping sequence;
- a second element indicating a length of a channel hopping sequence;
- a third element indicating a sequence of logical channel numbers set by an NHL
- a fourth element indicating an offset value of the channel hopping sequence;
- a fifth element indicating a length of a channel offset bitmap indicating whether a is corresponding channel offset is used;
- and
- a sixth element including the channel offset bitmap.
A method of operating a WPAN device, the method comprising:
- generating a beacon frame,
- wherein the beacon frame comprises a field indicating a mode in which a distributed synchronous multi-channel extension (DSME) operates in a channel diversity mode including a channel adaptation mode or a channel hopping mode.
A method of operating a WPAN device, the method comprising:
- generating an association response command frame to an association request command,
- wherein the association response command frame comprises an association status field including a channel hopping sequence offset duplicate.
A method of operating a WPAN device, the method comprising:
- generating an association request command frame,
- wherein the association request command frame comprises a channel offset field including an offset value of an unassociated device that wishes an association to a PAN.
A method of operating a WPAN device, the method comprising:
- generating an association response command frame,
- wherein the association response command frame comprises:
- if a PAN operates in a beacon enabled mode and a channel hopping mode, a channel hopping sequence length field indicating a length of a channel hoping sequence used in the PAN;
- and
- a channel hopping sequence field indicating the channel hoping sequence used in the PAN.
A method of operating a WPAN device, the method comprising:
- generating a handshake command frame including a DSME characteristics field,
- wherein the DSME characteristics field comprises a channel diversity mode subfield indicating a channel adaptation mode or a channel hopping mode.
A method of operating a WPAN device, the method comprising:
- is selecting a channel offset value different from channel offset values of other devices within an interference range in order to prevent the same channel from being used by other devices;
- and
- repeating a channel hopping sequence reflecting a channel offset in all slots of a multi-superframe including a plurality of superframes.
A method of operating a WPAN device, the method comprising:
- receiving a beacon frame;
- renewing a value of a channel diversity specification field of a PAN descriptor to a value of a channel diversity specification field of the beacon frame;
- transmitting the value of the channel diversity specification field to an NHL through a confirm primitive;
- and
- renewing a channel offset bitmap of a MAC PAN information base (FIB) to value of the channel diversity specification field of the beacon frame.
A method of operating a WPAN device, the method comprising:
- if a PAN uses a DSME and a channel hopping mode, renewing a value of a DCH Descriptor parameter in a request primitive, wherein the renewing is performed in a MAC sublayer.
A method of operating a WPAN device, the method comprising:
- if a DSME and a channel hopping mode are used in a PAN, setting a channel diversity specification field of a beacon frame, wherein the setting is performed by a MAC sublayer;
- and
- setting MAC PIB attributes as values of a channel offset bitmap field indicating a channel offset available in 1-hop neighboring devices.
A method of operating a WPAN device, the method comprising:
- mapping channel hopping sequences to logical channel numbers for physical layer (PHY) frequency hopping (FH);
- and
- using a channel hopping sequence corresponding to a logical channel number of a MAC hopping sequence in the PHY-FH.
Dependencies are inferred from the claim text.