ES2614038T3 - Procedimiento y aparato de comunicaciones por paquetes en sistemas inalámbricos - Google Patents
Procedimiento y aparato de comunicaciones por paquetes en sistemas inalámbricos Download PDFInfo
- Publication number
- ES2614038T3 ES2614038T3 ES13178229.4T ES13178229T ES2614038T3 ES 2614038 T3 ES2614038 T3 ES 2614038T3 ES 13178229 T ES13178229 T ES 13178229T ES 2614038 T3 ES2614038 T3 ES 2614038T3
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- 230000011664 signaling Effects 0.000 abstract description 10
- 230000007704 transition Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 8
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
Abstract
Un aparato (110) para la recepción discontinua, que comprende: medios para funcionar en al menos una modalidad de recepción discontinua "DRX" (314) o una modalidad no-DRX (316), mientras está en la modalidad conectada, para la recepción desde una red inalámbrica, en el que dicha al menos una modalidad de DRX puede estar asociada a un conjunto distinto de sub-tramas habilitadas de enlace descendente, y / o a distintas acciones a realizar por parte del dispositivo, en el que dicha al menos una modalidad de DRX comprende una modalidad de DRX en la cual el aparato está adaptado para recibir tanto datos como señalización desde la red inalámbrica; y medios para realizar transiciones entre dicha modalidad no-DRX y dicha al menos una modalidad de DRX, mientras está en una modalidad conectada para la recepción desde (920) la red inalámbrica, después de recibir un comando desde la red inalámbrica (100).
Description
Cada paquete es enviado en un proceso de HARQ e incluye un Identificador de proceso de HARQ (HID) que indica el proceso de HARQ usado para ese paquete. Cada proceso de HARQ lleva un paquete a la vez, hasta que se complete la transmisión / retransmisión para ese paquete, y luego puede ser usado para enviar otro paquete.
Si se usa HARQ para la transmisión, entonces la condición de “sin datos que enviar” para la transición desde la modalidad de DTX T1 a la modalidad de DTX T2 puede corresponder a que no haya activo ningún proceso de HARQ. Esto, a su vez, puede detectarse porque no haya actividad alguna en ninguno de los procesos de HARQ. Cuando todos los procesos de HARQ reciben acuse, el UE puede pasar a la modalidad de DTX T2.
La FIG. 4 muestra una realización de las sub-tramas habilitadas para el HSDPA y el HSUPA. En el UMTS, la escala temporal de la transmisión está dividida en tramas, identificándose cada trama por el SFN. Cada trama tiene una duración de 10 milisegundos (ms) y está dividida en cinco sub-tramas 0 a 4. Cada sub-trama tiene una duración de 2 ms y abarca tres ranuras. Cada ranura tiene una duración de 0,667 ms y abarca 2.560 segmentos a 3,84 Mcps, o Tranura = 2.560 segmentos.
Por el enlace descendente, el P-CCPCH lleva la señal piloto y el SFN. Se usa el P-CCPCH directamente como referencia de sincronización para los canales de enlace descendente, y se usa indirectamente como referencia de sincronización para los canales de enlace ascendente. Las sub-tramas del HS-SCCH están sincronizadas con el P CCPCH. Las sub-tramas del HS-PDSCH tienen un retardo de THS-PDSCH = 2Tranura con respecto a las sub-tramas del HS-SCCH. Las sub-tramas del E-HICH tienen un retardo de TE-HICH,n con respecto a las sub-tramas del HS-SCCH, definiéndose TE-HICH,n en el documento 3GPP TS 25.211.
Por el enlace ascendente, las sub-tramas del HS-DPCCH tienen un retardo de 7,5 ranuras con respecto a las subtramas del HS-PDSCH en el UE, denotando TPD en la FIG. 4 el retardo de propagación desde el Nodo B hasta el UE. Los DPCCH, E-DPCCH y E-DPDCH de enlace ascendente están sincronizados y su sincronismo de tramas está a m × 256 segmentos desde el sincronismo de tramas del HS-DPCCH. La sincronización del DPCCH de enlace ascendente no está directamente relacionada con la sincronización del HS-DPCCH. En el documento 3GPP TS
La FIG. 4 también muestra una configuración ejemplar de CPC con T1 = 4, T2 = 8, R = 4 y Desfase = 1. En este ejemplo, las sub-tramas habilitadas para T1 en los DPCCH, E-DPCCH, E-DPDCH e E-HICH de enlace ascendente están separadas entre sí por 4 sub-tramas. Las sub-tramas habilitadas para T2 en el DPCCH de enlace ascendente están separadas entre sí por 8 sub-tramas. Las sub-tramas habilitadas para R en los HS-SCCH, HS-DPDCH y HS-DPCCH están separadas entre sí por 4 sub-tramas. El Desfase determina las sub-tramas específicas que deben usarse para las sub-tramas habilitadas. Las sub-tramas habilitadas para T1, habilitadas para T2 y habilitadas para R pueden estar alineadas en el tiempo (por ejemplo, según se describe en el documento TR25.903, sección 4.5.2.1) para reducir el incremento de ruido térmico (ROT) y extender el posible tiempo de reposo para el UE entre las subtramas habilitadas. Por ejemplo, las transmisiones por el enlace ascendente (incluyendo los ACK para las transmisiones de enlace descendente) pueden ser agrupadas o combinadas entre sí para reducir el ROT en el Nodo
B. Las transmisiones por el enlace descendente (incluyendo los ACK para las transmisiones por el enlace ascendente) también pueden ser agrupadas entre sí para reducir el tiempo de reactivación en el dispositivo inalámbrico.
La FIG. 5A muestra el funcionamiento ejemplar del UE en la modalidad de DTX T1 para la configuración de CPC mostrada en la FIG. 4. El UE transmite la señal piloto y la señalización (por ejemplo, TPC) por el DPCCH del enlace ascendente y señalización (por ejemplo, CQI) por el HS-DPCCH en cada sub-trama habilitada para T1. Si el UE tiene datos que enviar en una sub-trama dada habilitada para T1, entonces el UE transmite señalización por el E-DPCCH, transmite datos por el EDPDCH y recibe ACK/NAK por el E-HICH.
La FIG. 5B muestra el funcionamiento ejemplar del UE en la modalidad de DTX T2 para la configuración de CPC mostrada en la FIG. 4. El UE transmite la señal piloto y la señalización (por ejemplo, TPC) por el DPCCH del enlace ascendente y señalización (por ejemplo, CQI) por el HS-DPCCH en cada sub-trama habilitada para T2. El UE no transmite señalización por el E-DPCCH, no transmite datos por el E-DPDCH y no recibe ACK/NAK por el E-HICH.
La FIG. 5C muestra el funcionamiento ejemplar del UE en la modalidad de DRX para la configuración de CPC mostrada en la FIG. 4. El UE recibe señalización por el HS-SCCH en cada sub-trama habilitada para R. El UE puede recibir datos por el HS-DPDCH en cualquier sub-trama habilitada para R y puede enviar ACK/NAK por el HS-DPCCH.
En la realización mostrada en las FIGs. 5A a 5C, se envían informes de CQI en las sub-tramas habilitadas para T1 en la modalidad de DTX T1 y en las sub-tramas habilitadas para T2 en la modalidad de DTX T2. En otra realización, se envían informes de CQI en las sub-tramas habilitadas para R. El UE también puede enviar informes adicionales de CQI cuando envía los ACK/NAK. Los informes adicionales de CQI pueden ser usados para retransmisiones o nuevas transmisiones.
En una realización, las dos modalidades de DTX y la modalidad de DRX pueden definirse independientemente entre sí. En otra realización, las modalidades de DTX y DRX se parametrizan conjuntamente, por ejemplo, para sincronizar
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Claims (1)
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Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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US499458 | 1983-05-31 | ||
US71153405P | 2005-08-26 | 2005-08-26 | |
US711534P | 2005-08-26 | ||
US79397306P | 2006-04-21 | 2006-04-21 | |
US793973P | 2006-04-21 | ||
US11/499,458 US8094595B2 (en) | 2005-08-26 | 2006-08-04 | Method and apparatus for packet communications in wireless systems |
Publications (1)
Publication Number | Publication Date |
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ES2614038T3 true ES2614038T3 (es) | 2017-05-29 |
Family
ID=37651026
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
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ES10163332.9T Active ES2534778T3 (es) | 2005-08-26 | 2006-08-25 | Procedimiento y aparato de comunicaciones por paquetes en sistemas inalámbricos |
ES13178229.4T Active ES2614038T3 (es) | 2005-08-26 | 2006-08-25 | Procedimiento y aparato de comunicaciones por paquetes en sistemas inalámbricos |
ES06802333T Active ES2393404T3 (es) | 2005-08-26 | 2006-08-25 | Procedimiento y aparato de comunicaciones por paquetes en sistemas inalámbricos |
Family Applications Before (1)
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ES10163332.9T Active ES2534778T3 (es) | 2005-08-26 | 2006-08-25 | Procedimiento y aparato de comunicaciones por paquetes en sistemas inalámbricos |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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ES06802333T Active ES2393404T3 (es) | 2005-08-26 | 2006-08-25 | Procedimiento y aparato de comunicaciones por paquetes en sistemas inalámbricos |
Country Status (13)
Country | Link |
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US (2) | US8094595B2 (es) |
EP (3) | EP2234451B1 (es) |
JP (4) | JP4865795B2 (es) |
KR (2) | KR101111048B1 (es) |
CN (2) | CN102098767B (es) |
DK (2) | DK2234451T3 (es) |
ES (3) | ES2534778T3 (es) |
HU (1) | HUE030990T2 (es) |
PL (2) | PL2234451T3 (es) |
PT (2) | PT2234451E (es) |
SI (1) | SI2677820T1 (es) |
TW (1) | TWI336181B (es) |
WO (1) | WO2007025138A2 (es) |
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