Transmitting apparatus and receiving apparatus

Abstract

A transmitting apparatus generates at least one of a first type of schedule element supporting an allocation involving a single channel and a second type of schedule element supporting an allocation involving a plurality of channels and transmits a MAC frame including the generated at least one schedule element over a first channel. When the allocation involving the plurality of channels includes the first channel, the transmitting apparatus generates a first type of schedule element including information regarding the allocation involving the plurality of channels and generates the second type of schedule element including difference information, and when the allocation involving the plurality of channels does not include the first channel, the transmitting apparatus omits the generation of the first type of schedule element and generates the second type of schedule element including all the information regarding the allocation involving the plurality of channels.

What is claimed is: 
     
         1 . A reception apparatus comprising:
 a receiving circuit which, in operation, receives a frame from a transmission apparatus over a primary channel, the frame including a first type of schedule element and a second type of schedule element, the first type of schedule element corresponding to one or more allocations over the primary channel and the second type of schedule element corresponding to one or more channel allocations over a plurality of channels; and   a signal processing circuit which, in operation, determines the one or more channel allocations over the plurality of channels, by using both the first type of schedule element and the second type of schedule element or by using the second type of schedule element, depending on whether the plurality of channels include the primary channel or not.   
     
     
         2 . The reception apparatus according to  claim 1 ,
 wherein for a channel allocation where the plurality of channels includes the primary channel,
 the first type of schedule element includes an Allocation field containing allocation time information; and 
 the second type of schedule element includes a Channel Allocation field containing supplemental allocation information to the Allocation field in the first type of schedule element, and 
   wherein for another channel allocation where the plurality of channels does not include the primary channel,
 the second type of schedule element includes a Channel Allocation field containing complete allocation information regarding the another channel allocation over the plurality of channels. 
   
     
     
         3 . The reception apparatus according to  claim 2 ,
 wherein the first type of schedule element is an Extended Schedule element that complies with an IEEE 802.11ad standard, and   the second type of schedule element is an EDMG (Enhanced Directional Multi-Gigabit) Extended Schedule element that complies with an IEEE 802.11ay standard.   
     
     
         4 . The reception apparatus according to  claim 2 ,
 wherein the frame is either a DMG (Directional Multi-Gigabit) Beacon frame or an Announce frame.   
     
     
         5 . The reception apparatus according to  claim 2 ,
 wherein the second type of schedule element comprises one or more Channel Allocation fields, and each of the Channel Allocation fields comprises a signaling type subfield indicating whether the supplemental allocation information to the Allocation field is included or the complete allocation information is included in the Channel Allocation field itself.   
     
     
         6 . The reception apparatus according to  claim 5 , wherein the supplemental allocation information includes bandwidth information of a corresponding channel allocation. 
     
     
         7 . A reception method comprising:
 receiving a frame from a transmitting apparatus over a primary channel, the frame including a first type of schedule element and a second type of schedule element, the first type of schedule element corresponding to one or more allocations over the primary channel and the second type of schedule element corresponding to one or more channel allocations over a plurality of channels; and   determining the one or more channel allocations over the plurality of channels, by using both the first type of schedule element and the second type of schedule element or by using the second type of schedule element, depending on whether the plurality of channels include the primary channel or not.   
     
     
         8 . The reception method according to  claim 7 ,
 wherein for a channel allocation where the plurality of channels includes the primary channel,
 the first type of schedule element includes an Allocation field containing allocation time information; and 
 the second type of schedule element includes a Channel Allocation field containing supplemental allocation information to the Allocation field in the first type of schedule element, and 
   wherein for another channel allocation where the plurality of channels does not include the primary channel,
 the second type of schedule element includes a Channel Allocation field containing complete allocation information regarding the another channel allocation over the plurality of channels. 
   
     
     
         9 . The reception method according to  claim 8 ,
 wherein the first type of schedule element is an Extended Schedule element that complies with an IEEE 802.11ad standard, and   the second type of schedule element is an EDMG (Enhanced Directional Multi-Gigabit) Extended Schedule element that complies with an IEEE 802.11ay standard.   
     
     
         10 . The reception method according to  claim 8 ,
 wherein the frame is either a DMG (Directional Multi-Gigabit) Beacon frame or an Announce frame.   
     
     
         11 . The reception method according to  claim 8 ,
 wherein the second type of schedule element comprises one or more Channel Allocation fields, and each of the Channel Allocation fields comprises a signaling type subfield indicating whether the supplemental allocation information to the Allocation field is included or the complete allocation information is included in the Channel Allocation field itself.   
     
     
         12 . The reception method according to  claim 11 , wherein the supplemental allocation information includes bandwidth information of a corresponding channel allocation.