Communication apparatus, communication method, and communication system for handling frames of variable length
First Claim
Patent Images
1. A communication apparatus comprising:
- a processor,wherein the processor is configured to initiate a generation of a plurality of frames that should be transmitted on a same time,wherein the processor is further configured to initiate an applying of a padding on at least a part of the generated plurality of frames to adjust frame lengths,wherein the processor is further configured to initiate a multiplexing of the plurality of frames after the frame lengths are adjusted, on the same time to be transmitted,wherein the plurality of frames multiplexed on the same time are transmitted while eventually having a same frame length,wherein the padding is applied to the at least the part of the generated plurality of frames through one of an error correction coding processing and an interleave processing of the generated plurality of frames, andwherein the padding is applied in combination of one or more bits in a case of a single carrier or an orthogonal frequency division multiplexing, and relative location within frames where the padding is applied can be changed in relation to one or more positions of data within the frames and information indicating the padded location is provided in a preamble or a header part of the frames.
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Abstract
Frames in a variable length frame format which are addressed to a plurality of users are multiplexed and preferably transmitted.
Data frames having different lengths are multiplexed on a same time through space division multiple access, but since the multiplexed frames are transmitted while eventually having a same length, when the multiplexed data frames from the access point STA0 are received in the respective communication stations STA1 to STA3 in FIG. 4 or when data simultaneously transmitted from the respective communication stations STA1 to STA3 are received in the access point STA0 in FIG. 5, it is possible to eliminate an operation instability of AGC.
14 Citations
19 Claims
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1. A communication apparatus comprising:
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a processor, wherein the processor is configured to initiate a generation of a plurality of frames that should be transmitted on a same time, wherein the processor is further configured to initiate an applying of a padding on at least a part of the generated plurality of frames to adjust frame lengths, wherein the processor is further configured to initiate a multiplexing of the plurality of frames after the frame lengths are adjusted, on the same time to be transmitted, wherein the plurality of frames multiplexed on the same time are transmitted while eventually having a same frame length, wherein the padding is applied to the at least the part of the generated plurality of frames through one of an error correction coding processing and an interleave processing of the generated plurality of frames, and wherein the padding is applied in combination of one or more bits in a case of a single carrier or an orthogonal frequency division multiplexing, and relative location within frames where the padding is applied can be changed in relation to one or more positions of data within the frames and information indicating the padded location is provided in a preamble or a header part of the frames. - View Dependent Claims (2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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3. A communication apparatus comprising:
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a processor, wherein the processor is configured to initiate a generation of a plurality of frames that should be transmitted on a same time with one or more other communication apparatuses, wherein the processor is further configured to initiate an applying of a padding on the generated plurality of frames to adjust frame lengths, wherein the processor is further configured to initiate a multiplexing of the plurality of frames after the frame lengths are adjusted, on the same time to be transmitted, wherein the frames are transmitted on the same time with the other communication apparatuses while mutually having a same frame length, wherein the padding is applied to the generated plurality of frames through one of an error correction coding processing and an interleave processing of the generated plurality of frames, and wherein the padding is applied in combination of one or more bits in a case of a single carrier or an orthogonal frequency division multiplexing, and relative location within frames where the padding is applied can be changed in relation to one or more positions of data within the frames and information indicating the padded location is provided in a preamble or a header part of the frames. - View Dependent Claims (14, 15)
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16. A communication method comprising:
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a frame generation step of generating a plurality of frames that should be transmitted on a same time; a frame length control step of applying a padding on at least a part of the generated plurality of frames and adjusting frame lengths; and a communication step of multiplexing the plurality of frames after the frame lengths are adjusted, on the same time to be transmitted, wherein the plurality of frames multiplexed on the same time are transmitted while eventually having a same frame length, wherein the padding is applied to the at least the part of the generated plurality of frames through one of an error correction coding processing and an interleave processing of the generated plurality of frames, and wherein the padding is applied in combination of one or more bits in a case of a single carrier or an orthogonal frequency division multiplexing, and relative location within frames where the padding is applied can be changed in relation to one or more positions of data within the frames and information indicating the padded location is provided in a preamble or a header part of the frames.
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17. A communication method comprising:
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a frame generation step of generating a plurality of frames that should be transmitted on a same time with one or more other communication apparatuses; a frame length control step of applying a padding on the generated plurality of frames and adjusting frame lengths; and a communication step of multiplexing the plurality of frames after the frame lengths are adjusted, on the same time to be transmitted, wherein the frames are transmitted on the same time with the other communication apparatuses while mutually having a same frame length, wherein the padding is applied to the generated plurality of frames through one of an error correction coding processing and an interleave processing of the generated plurality of frames, and wherein the padding is applied in combination of one or more bits in a case of a single carrier or an orthogonal frequency division multiplexing, and relative location within frames where the padding is applied can be changed in relation to one or more positions of data within the frames and information indicating the padded location is provided in a preamble or a header part of the frames.
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18. A communication system comprising:
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a first communication apparatus that applies a padding on at least a part of a plurality of frames that should be transmitted on a same time, adjusts frame lengths, and multiplexes the plurality of frames on the same time to be transmitted while eventually having a same frame length; and one or more second communication apparatus that receive the respective frames multiplexed on the same time as destinations of the plurality of frames, wherein the padding is applied to the at least the part of the plurality of frames through one of an error correction coding processing and an interleave processing of the plurality of frames, and wherein the padding is applied in combination of one or more bits in a case of a single carrier or an orthogonal frequency division multiplexing, and relative location within frames where the padding is applied can be changed in relation to one or more positions of data within the frames and information indicating the padded location is provided in a preamble or a header part of the frames.
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19. A communication system comprising:
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a plurality of first communication apparatuses that apply a padding on frames that should be mutually transmitted on a same time, adjust frame lengths, and respectively transmit on the same time while mutually having a same frame length; and a second communication apparatus that receives the frames multiplexed on the same time, wherein the padding is applied to the frames through one of an error correction coding processing and an interleave processing of the frames, and wherein the padding is applied in combination of one or more bits in a case of a single carrier or an orthogonal frequency division multiplexing, and relative location within frames where the padding is applied can be changed in relation to one or more positions of data within the frames and information indicating the padded location is provided in a preamble or a header part of the frames.
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Specification