JP2011071765A5 - - Google Patents
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- JP2011071765A5 JP2011071765A5 JP2009221442A JP2009221442A JP2011071765A5 JP 2011071765 A5 JP2011071765 A5 JP 2011071765A5 JP 2009221442 A JP2009221442 A JP 2009221442A JP 2009221442 A JP2009221442 A JP 2009221442A JP 2011071765 A5 JP2011071765 A5 JP 2011071765A5
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Description
複数の子局とデータを送受信する通信システムにおける親局が、一定のフレーム長を有し、一定周期毎に送受信される伝送フレームに、前記複数の子局の各々とのデータの送受信に使用する下り用スロットおよび上り用スロットを該伝送フレームの予め設定された位置に割り当てるスロット割り当て手段と、前記伝送フレームの、前記下り用スロットおよび前記上り用スロットと異なる位置に、予備下り用スロットおよび予備上り用スロットを割り当てる予備スロット割り当て手段と、一定周期毎に、前記スロット割り当て手段が割り当てた前記伝送フレームにより情報を送受し、該情報に加え追加情報を送受する場合に、前記予備下り用スロットおよび前記予備上り用スロットにより前記追加情報を送受する伝送手段とを備えることを特徴とする。
The master station in a communication system for transmitting and receiving a plurality of slave stations and the data has a fixed frame length, the transmission frames transmitted and received at fixed intervals, used to send and receive data to and from each of said plurality of slave stations Slot allocating means for allocating downlink slots and uplink slots to preset positions of the transmission frame, and spare downlink slots and spare uplinks at positions different from the downlink slot and uplink slot of the transmission frame. A spare slot allocating unit for allocating a slot for use, and transmitting and receiving information by the transmission frame allocated by the slot allocating unit at regular intervals, and when transmitting and receiving additional information in addition to the information, Transmission means for transmitting and receiving the additional information by a spare uplink slot. To.
Claims (5)
一定のフレーム長を有し、一定周期毎に送受信される伝送フレームに、前記複数の子局の各々とのデータの送受信に使用する下り用スロットおよび上り用スロットを該伝送フレームの予め設定された位置に割り当てるスロット割り当て手段と、
前記伝送フレームの、前記下り用スロットおよび前記上り用スロットと異なる位置に、予備下り用スロットおよび予備上り用スロットを割り当てる予備スロット割り当て手段と、
一定周期毎に、前記スロット割り当て手段が割り当てた前記伝送フレームにより情報を送受し、該情報に加え追加情報を送受する場合に、前記予備下り用スロットおよび前記予備上り用スロットにより前記追加情報を送受する伝送手段と
を備えることを特徴とする親局。 A master station in a communication system that transmits and receives data to and from a plurality of slave stations,
Has a constant frame length, the transmission frames transmitted and received at fixed intervals, the downlink slots and uplink slots are used to transmit and receive data to and from each of said plurality of slave stations is set in advance in said transmission frame Slot assignment means for assigning to the position;
Spare slot allocating means for allocating a spare downlink slot and a spare uplink slot at a position different from the downlink slot and the uplink slot in the transmission frame;
Information is transmitted and received by the transmission frame allocated by the slot allocation unit at regular intervals, and when the additional information is transmitted and received in addition to the information, the additional information is transmitted and received by the spare downlink slot and the spare uplink slot. And a transmission means.
前記伝送手段は、前記記憶された優先度に従って、優先度の高い子局から順番に前記予備下り用スロットおよび前記予備上り用スロットを用いて、前記追加情報を伝送することを特徴とする請求項１に記載の親局。 And a priority storage means for storing priorities of the plurality of slave stations,
The transmission means transmits the additional information using the spare downlink slot and the spare uplink slot in order from a slave station having a higher priority according to the stored priority. 1. The master station described in 1.
前記複数の子局の各々から前記親局が送信する信号の受信レベルを受信し、
前記受信レベルが所定の閾値より高い子局に対して、第１変調方式により前記情報を送受し、
前記受信レベルが前記所定の閾値以下の子局に対して、第２変調方式により前記情報と前記追加情報を送受することを特徴とする請求項１に記載の親局。 Further, the transmission means includes
Receiving a reception level of a signal transmitted by the master station from each of the plurality of slave stations;
Sending and receiving the information by a first modulation scheme to a slave station having a reception level higher than a predetermined threshold,
2. The master station according to claim 1, wherein the information and the additional information are transmitted and received by a second modulation method to a slave station having the reception level equal to or less than the predetermined threshold.
一定のフレーム長を有し、一定周期毎に送受信される伝送フレームに、前記複数の子局の各々とのデータの送受信に使用する下り用スロットおよび上り用スロットを該伝送フレームの固定位置に割り当てるスロット割り当て工程と、
前記伝送フレームの、前記下り用スロットおよび前記上り用スロットと異なる位置に、予備下り用スロットおよび予備上り用スロットを割り当てる予備スロット割り当て工程と
一定周期毎に、前記スロット割り当て工程において割り当てた前記伝送フレームにより情報を送受し、該情報に加え追加情報を送受する場合に、前記予備下り用スロットおよび前記予備上り用スロットにより追加情報を送受する伝送工程と
を備えることを特徴とする方法。 In a communication system comprising a master station and a plurality of slave stations, a communication control method between the master station and the plurality of slave stations,
Has a constant frame length, the transmission frames transmitted and received every predetermined cycle, allocates the downlink slot and the uplink slot is used to transmit and receive data to and from each of said plurality of slave stations in a fixed position frame transmitting said transmission Slot assignment process;
A spare slot allocating step of allocating a spare downlink slot and a spare uplink slot at a position different from the downlink slot and the uplink slot in the transmission frame;
Information is transmitted / received by the transmission frame allocated in the slot allocation step at regular intervals, and when additional information is transmitted / received in addition to the information, additional information is transmitted / received by the spare downlink slot and the spare uplink slot. And a transmission step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009221442A JP5524556B2 (en) | 2009-09-25 | 2009-09-25 | Master station and communication control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009221442A JP5524556B2 (en) | 2009-09-25 | 2009-09-25 | Master station and communication control method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2011071765A JP2011071765A (en) | 2011-04-07 |
| JP2011071765A5 true JP2011071765A5 (en) | 2012-11-08 |
| JP5524556B2 JP5524556B2 (en) | 2014-06-18 |
Family
ID=44016597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009221442A Active JP5524556B2 (en) | 2009-09-25 | 2009-09-25 | Master station and communication control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5524556B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490842B (en) * | 2013-09-26 | 2016-09-28 | 深圳市大疆创新科技有限公司 | Data transmission system and method |
| CN110213029A (en) * | 2019-06-05 | 2019-09-06 | 北京昆羽科技有限公司 | Signal transmission method |
| CN111356266B (en) * | 2020-02-26 | 2022-12-02 | 杭州涂鸦信息技术有限公司 | Lamp and colorful synchronization method and system thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0824397B2 (en) * | 1986-07-09 | 1996-03-06 | 株式会社日立製作所 | Subscriber line multiplexer |
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2009
- 2009-09-25 JP JP2009221442A patent/JP5524556B2/en active Active
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