RU2485698C2 - Система беспроводной локальной вычислительной сети с множеством входов и множеством выходов - Google Patents
Система беспроводной локальной вычислительной сети с множеством входов и множеством выходов Download PDFInfo
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Abstract
Изобретение относится к технике связи и может использоваться в системе беспроводной локальной вычислительной сети с множеством входов и выходов. Технический результат состоит в обеспечении множества скоростей передачи и режимов передачи. Для этого в системе беспроводной сети применяется мультиплексирование с ортогональным разделением частот (МОРЧ) и дуплексирование с временным разделением (ДВР). Система использует канальную структуру с несколькими конфигурируемыми транспортными каналами, поддерживает множество скоростей передачи и режимов передачи, которые можно конфигурировать на основе канальных условий и возможностей пользовательских терминалов, применяет пилотные структуры с несколькими типами пилот-сигнала для различных функций, реализует контуры управления скоростью передачи, синхронизацией и мощностью для надлежащей работы системы и применяет случайный доступ для доступа к системе пользовательскими терминалами, быстрого подтверждения и быстрого назначения ресурсов. Может выполняться калибровка для учета различий в частотных откликах цепей передачи/приема в пункте доступа и пользовательских терминалах. Пространственная обработка затем может быть упрощена использованием преимуществ обратимого характера нисходящей и восходящей линий и калибровки. 3 н. и 18 з.п. ф-лы, 33 ил.
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Claims (21)
1. Способ доступа к системе беспроводной связи с множеством входов и множеством выходов (MIMO) с множественным доступом, содержащий: прием системной информации посредством первого транспортного канала по нисходящей линии связи; передачу запроса доступа посредством второго транспортного канала по восходящей линии связи, где запрос доступа передается на основе принятой системной информации; мониторинг третьего транспортного канала на нисходящей линии связи для квитирования переданного запроса доступа; и повторение приема, передачи и мониторинга, если квитирование не принято в пределах предопределенного временного периода.
2. Способ по п.1, где мониторинг третьего транспортного канала включает в себя мониторинг бита квитирования в первом транспортном канале и обработку третьего транспортного канала для квитирования, если бит квитирования установлен.
3. Способ по п.1, где передаются множество запросов доступа.
4. Способ по п.3, где упомянутое множество запросов доступа передаются на последовательно более низких скоростях.
5. Способ по п.3, дополнительно содержащий: ожидание псевдослучайного периода времени до передачи следующего запроса доступа среди упомянутого множества запросов доступа.
6. Способ по п.3, дополнительно содержащий: передачу подвергнутого управлению пилот-сигнала вместе с запросом доступа по второму транспортному каналу, причем упомянутый подвергнутый управлению пилот-сигнал посылается по, по меньшей мере, одной собственной моде MIMO канала для восходящей линии связи.
7. Способ по п.1, где системная информация показывает временной интервал, в котором передача запросов доступа разрешается, и где запрос доступа передается в пределах упомянутого временного интервала.
8. Способ по п.1, где системная информация показывает конкретное количество интервалов, в которых передача запросов доступа разрешена, и где запрос доступа идентифицирует конкретный интервал, в котором запросе доступа передается.
9. Способ по п.8, где интервалы имеют временную продолжительность, конфигурируемую системой.
10. Устройство доступа к системе беспроводной связи с множеством входов и множеством выходов (MIMO) с множественным доступом, содержащее: процессор данных приема, работоспособный для приема системной информации посредством первого транспортного канала по нисходящей линии связи; процессор данных передачи, работоспособный для обработки запроса доступа для передачи посредством второго транспортного канала по восходящей линии связи, где запрос доступа передается на основе принятой системной информации; контроллер, работоспособный для мониторинга третьего транспортного канала на нисходящей линии связи для квитирования переданного запроса доступа, и где процессор данных приема является работоспособным для приема обновленной системной информации, процессор данных передачи является работоспособным для обработки другого запроса доступа, и контроллер является работоспособным для мониторинга третьего транспортного канала, если квитирование не принято в пределах предопределенного временного периода.
11. Устройство по п.10, где контроллер является работоспособным для мониторинга бита квитирования в первом транспортном канале и для направления процессора данных приему обрабатывать третий транспортный канал для квитирования, если бит квитирования установлен.
12. Устройство по п.10, где передаются множество запросов доступа.
13. Устройство по п.12, где упомянутое множество запросов доступа передаются на последовательно более низких скоростях.
14. Устройство по п.12, где контроллер является работоспособным для ожидания псевдослучайного периода времени до инициации передачи следующего запроса доступа среди упомянутого множества запросов доступа.
15. Устройство по п.12, дополнительно содержащее: пространственный процессор передачи, работоспособный для передачи подвергнутого управлению пилот-сигнала вместе с запросом доступа по второму транспортному каналу, причем подвергнутый управлению пилот-сигнал посылается по, по меньшей мере, одной собственной моде MIMO канала для восходящей линии связи.
16. Устройство доступа к системе беспроводной связи с множеством входов и множеством выходов (MIMO) с множественным доступом, содержащее: средство для приема системной информации посредством первого транспортного канала по нисходящей линии связи; средство для передачи запроса доступа посредством второго транспортного канала по восходящей линии связи, где запрос доступа передается на основе принятой системной информации; средство для мониторинга третьего транспортного канала на нисходящей линии связи для квитирования переданного запроса доступа; и средство для повторения приема, передачи и мониторинга, если квитирование не принято в пределах предопределенного временного периода.
17. Устройство по п.16, где средство для мониторинга третьего транспортного канала включает в себя средство для мониторинга бита квитирования в первом транспортном канале и средство для обработки третьего транспортного канала для квитирования, если бит квитирования установлен.
18. Устройство по п.16, где множество запросов доступа передаются.
19. Устройство по п.18, где упомянутое множество запросов доступа передаются на последовательно более низких скоростях.
20. Устройство по п.18, дополнительно содержащее: средство для ожидания псевдослучайного периода времени до передачи следующего запроса доступа среди упомянутого множества запросов доступа.
21. Устройство по п.18, дополнительно содержащее: средство для передачи подвергнутого управлению пилот-сигнала вместе с запросом доступа по второму транспортному каналу, причем подвергнутый управлению пилот-сигнал посылается по, по меньшей мере, одной собственной моде MIMO канала для восходящей линии связи.
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