ES2612567T3 - Señalización de información de estado de recursos entre estaciones de base para el equilibrio de carga - Google Patents

Señalización de información de estado de recursos entre estaciones de base para el equilibrio de carga Download PDF

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Publication number
ES2612567T3
ES2612567T3 ES15151692.9T ES15151692T ES2612567T3 ES 2612567 T3 ES2612567 T3 ES 2612567T3 ES 15151692 T ES15151692 T ES 15151692T ES 2612567 T3 ES2612567 T3 ES 2612567T3
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Prior art keywords
resource status
load balancing
base station
signaling
base stations
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Jagdeep Singh Ahluwalia
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NEC Corp
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NEC Corp
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/09—Management thereof
    • H04W28/0925—Management thereof using policies
    • H04W28/0942—Management thereof using policies based on measured or predicted load of entities- or links
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/22—Performing reselection for specific purposes for handling the traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/09—Management thereof
    • H04W28/0958—Management thereof based on metrics or performance parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

Una estación de base (5-1), que comprende: medios para enviar a una estación de base (5-2) contigua una petición de estado de recursos que define una periodicidad en la cual una estación de base (5-2) contigua ha de enviar mensajes de actualización de estado de recursos; medios para recibir al menos un mensaje de actualización de estado de recursos enviado por la estación de base contigua de acuerdo con la periodicidad definida por la petición de estado de recursos; medios para realizar operaciones de equilibrio de carga en base a uno o más de los mensajes de actualización de estado de recursos recibidos.

Description

imagen1
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imagen5
5
15
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como teléfono móvil 3 que se desplaza por dentro del área de cobertura de la red. Esto ha sido ilustrado en la Figura
4.
Los parámetros de re-selección de célula que podrían ser actualizados incluyen:
1.
Prioridades de re-selección inter-frecuencia
2.
Desviación específica de capa
(Como aplicarlo al caso de intra-frecuencia es el FFS (para estudio adicional) dado que está basado en clasificación jerárquica de células).
Los parámetros de transferencia de control que pueden ser configurados incluyen:
1.
Histéresis
2.
Tiempo de disparo
3.
Etc.
Modificación y alternativas
Un ejemplo de realización detallado ha sido descrito en lo que antecede. Como podrán apreciar los expertos en la materia, se puede realizar un número de modificaciones y alternativas en la realización anterior mientras se siguen teniendo los beneficios de las invenciones materializadas en la presente memoria.
En el ejemplo de realización anterior, ha sido descrito un sistema de telecomunicaciones basado en un teléfono móvil. Como podrán apreciar los expertos en la materia, las técnicas de señalización y transferencia de control descritas en la presente solicitud pueden ser empleadas en otros sistemas de comunicaciones. Otros nodos o dispositivos de comunicaciones pueden incluir dispositivos de usuario tales como, por ejemplo, asistentes digitales personales, ordenadores de sobremesa, navegadores de web, etc.
En los ejemplos de realización que anteceden, han sido descritos un número de módulos de software. Como podrán apreciar los expertos en la materia, los módulos de software pueden ser proporcionados en forma compilada o no compilada, y pueden ser suministrados a la estación de base o al teléfono móvil en forma de una señal por una red de ordenador, o sobre un medio de grabación. Además, la funcionalidad llevada a cabo por parte o por la totalidad de este software, puede ser llevada a cabo utilizando uno o más circuitos dedicados de hardware. Sin embargo, se prefiere el uso de módulos de software puesto que ello facilita la actualización de la estación de base 5 y del teléfono móvil 3 a efectos de actualizar sus funcionalidades.
Otras diversas modificaciones resultarán evidentes para los expertos en la materia y no van a ser descritas con detalle en la presente memoria.
Glosario de términos de 3GPP
LTE – Evolución a Largo Plazo (de UTRAN)
eNodoB – Nodo B de E-UTRAN
UE – Equipo de Usuario – dispositivo de comunicación móvil
DL – Enlace descendente – enlace desde la base al móvil
UL – enlace ascendente – enlace desde el móvil hasta la base
MME – Entidad de Gestión de Movilidad
UPE – Entidad de Plano de Usuario
HO – Transferencia de Control
RLC – Control de Enlace de Radio
RRC – Control de Recursos de Radio
RRM – Gestión de Recursos de Radio
SAE – Evolución de Arquitectura de Sistema
C-RNTI – Identificador Temporal de Célula - Red de Radio
SIB – Bloque de Información de Sistema
U-plano – Plano de Usuario
Interfaz X2 – Interfaz entre dos eNodoB
Interfaz S1 – Interfaz entre eNodoB y MME
TA – Área de Rastreo
EPC – Núcleo de Paquete Evolucionado
AS – Estrato de Acceso
RNL – Capa de Red de Radio
TNL – Capa de Red de Transporte
RACH – Canal de Acceso Aleatorio
MU MIMO – Multi – Usuario Multi – Entrada Multi – Salida
DMRS – Formato de Señal de Referencia de Demodulación
7
imagen6
imagen7
Procedimiento relativo a información de carga Actualmente, el Procedimiento de Información de Carga está definido en [3]. El propósito del procedimiento de información de carga es el de transferir la indicación de Sobrecarga de Interferencia de enlace ascendente entre
5 eNodoBs contiguas intra-frecuencia con el propósito de coordinación de interferencia.
Una eNodoB inicia el procedimiento enviando el mensaje INFORMACIÓN DE CARGA a eNodoBs contiguas intrafrecuencia según se ha ilustrado en la Figura 8. El mensaje de INFORMACIÓN DE CARGA puede llevar indicación de sobrecarga de interferencia. El procedimiento de información de carga deberá ser usado para enviar indicación
10 de sobrecarga de interferencia cuando la eNB experimente un nivel de interferencia demasiado alto sobre algunos bloques de recursos.
El procedimiento de actualización de Estado de Recursos propuesto puede incorporar el procedimiento anterior si el Informe de Actualización de Estado de Recursos pudiera ser enviado autónomamente a las eNBs Maestro contiguas
15 que hayan pedido actualización de estado de Recursos y tengan células intra-frecuencia siempre que la interferencia de UL exceda un umbral particular en su propia célula. De ahí que, por motivos de simplicidad, proponemos combinar estos procedimientos entre sí. Podríamos denominarlo procedimiento combinado ya sea como Actualización de Estado de Recursos o ya sea como Procedimiento de Información de Carga, siempre que se estime más apropiado.
20 Funcionalidad SON asociada La Información de Carga dentro de la eNB puede ser utilizada para controlar dinámicamente parámetros de Transferencia de Control y de (Re-) Selección de Célula de la célula controlada por eNB a través de la entidad SON interna. El mecanismo ha sido mostrado en la Figura 9.
25 Los parámetros de re-selección de célula que podrían ser actualizados son. [La manera de aplicarlo al caso de intrafrecuencia es FFS puesto que esto se basa en clasificación jerárquica de células].
3. Prioridades de re-selección de inter-frecuencia
30 4. Desviación específica de capa
Los parámetros de Transferencia de Control que pueden ser configurados son:
1. Histéresis
35 2. Tiempo para el disparo
3. Etc.
Conclusiones En esta distribución hemos discutido varias opciones para intercambiar información acerca del Estado de Recursos
40 entre eNBs. Creemos que la configuración de Maestro/Esclavo podría ser muy flexible para la provisión de informes de estado de recursos a los algoritmos de RRM específicos de implementación en un escenario multi-proveedor y deberían ser adoptados. Nosotros urgimos a RAN 3 a que adopte la opción del tipo de informe de Maestro/Esclavo que se ha propuesto, y la propuesta de texto asociado contenida en [4] para especificaciones de X2AP.
45 Además, hemos expuesto también los parámetros de transferencia de control y de re-selección de célula que podrían ser optimizados en la funcionalidad SON asociada y si fuera aceptable, algunos detalles podrían ser capturados en la Fase 2 TS.
Referencias
50
[1] R1-080601, Contestación LS sobre eq2uilibrio de carga, RAN 1
[2] Especificación 25.423 3GPP para RNSAP
[3] Especificación 36.423 3GPP para X2AP
[4] Procedimiento de texto R3-09XXXX para Procedimiento de Actualización de Estado de Recursos.
55
10

Claims (1)

  1. imagen1
ES15151692.9T 2008-02-04 2009-02-03 Señalización de información de estado de recursos entre estaciones de base para el equilibrio de carga Active ES2612567T3 (es)

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GB0802023A GB2458258A (en) 2008-02-04 2008-02-04 Method of controlling base station loading in a mobile communication system
GB0802023 2008-02-04

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ES16189350T Active ES2710492T3 (es) 2008-02-04 2009-02-03 Señalización de información de estado de recursos entre estaciones de base para el equilibrio de carga
ES15151692.9T Active ES2612567T3 (es) 2008-02-04 2009-02-03 Señalización de información de estado de recursos entre estaciones de base para el equilibrio de carga
ES11195063.0T Active ES2448418T3 (es) 2008-02-04 2009-02-03 Señalización de información de estado de recursos entre estaciones de base para el equilibrio de carga
ES11195061T Active ES2421633T3 (es) 2008-02-04 2009-02-03 Señalización de información de estado de recursos entre estaciones de base para el equilibrio de carga
ES09709160T Active ES2393298T3 (es) 2008-02-04 2009-02-03 Señalización de información de estado de recursos entre estaciones de base para el equilibrio de carga
ES11195062T Active ES2421631T3 (es) 2008-02-04 2009-02-03 Señalización de información de estado de recursos entre estaciones de base para el equilibrio de carga
ES13178830.9T Active ES2541429T3 (es) 2008-02-04 2009-02-03 Señalización de información de estado de recursos entre estaciones de base para el equilibrio de carga

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ES09709160T Active ES2393298T3 (es) 2008-02-04 2009-02-03 Señalización de información de estado de recursos entre estaciones de base para el equilibrio de carga
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US (10) US8442547B2 (es)
EP (13) EP2903345B1 (es)
JP (4) JP5218795B2 (es)
KR (4) KR101288770B1 (es)
CN (7) CN103561439B (es)
ES (7) ES2710492T3 (es)
GB (1) GB2458258A (es)
TR (1) TR201901420T4 (es)
WO (1) WO2009099224A1 (es)

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