(19)
(11)EP 3 297 383 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
17.02.2021 Bulletin 2021/07

(21)Application number: 17191924.4

(22)Date of filing:  09.11.2004
(51)International Patent Classification (IPC): 
H04W 72/12(2009.01)
H04W 92/12(2009.01)
H04W 8/24(2009.01)

(54)

ENHANCED UPLINK (EU) OPERATION BASED ON WIRELESS TRANSMIT/RECEIVE UNIT (WTRU)-SPECIFIC INFORMATION

BETRIEB GEMÄSS VERBESSERTER AUFWÄRTSSTRECKE ("ENHANCED UPLINK", EU) ANHAND SPEZIFISCHER INFORMATION EINER DRAHTLOSEN SENDE-/EMPFANGSEINHEIT (WTRU)

FONCTIONNEMENT DE LIEN MONTANT AMÉLIORÉ ("ENHANCED UPLINK", EU) BASÉ SUR DE L'INFORMATION SPÉCIFIQUE À UNE UNITÉ DE TRANSMISSION/RÉCEPTION SANS FIL (WTRU)


(84)Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR

(30)Priority: 12.11.2003 US 519436 P

(43)Date of publication of application:
21.03.2018 Bulletin 2018/12

(62)Application number of the earlier application in accordance with Art. 76 EPC:
14168173.4 / 2800440
04800968.2 / 1687903

(73)Proprietor: Signal Trust for Wireless Innovation
Wilmington, Delaware 19805 (US)

(72)Inventors:
  • Rudolf, Marian
    Montreal, Québec H3H 1P5 (CA)
  • Terry, Stephen E.
    Northport, New York 11768 (US)
  • Dick, Steven G.
    Nesconset, New York 11767 (US)

(74)Representative: Nederlandsch Octrooibureau 
P.O. Box 29720
2502 LS The Hague
2502 LS The Hague (NL)


(56)References cited: : 
EP-A- 1 139 605
GB-A- 2 358 551
EP-A2- 1 341 318
  
  • "3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Feasibility Study for Enhanced Uplink for UTRA FDD; (Release 6)", 3GPP STANDARD; 3GPP TR 25.896, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, no. V1.0.0, 1 September 2003 (2003-09-01), pages 1-63, XP050380446,
  
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


Description

FIELD OF INVENTION



[0001] The present invention is related to a wireless communication system. More particularly, the present invention is a Node-B and Wireless Transmit/Receive Unit WTRU for transferring wireless transmit/receive unit (WTRU)-specific information.

BACKGROUND



[0002] In wireless communication systems implementing the Third Generation Partnership Project (3GPP) standards, the Radio Network Controller (RNC) maintains overall control of transmissions to WTRUs and knows the capabilities of each WTRU. However, the current scheme often incurs problems with throughput and transmission latency. In order to improve upon the current scheme, the Node-Bs may be relied upon to schedule and assign uplink (UL) radio resources to WTRUs. Node-Bs can make more efficient decisions and manage UL radio resources on a short-term basis better than an RNC, even if the RNC retains overall control over Node-Bs.

[0003] In order for a Node-B to assign UL radio resources to WTRUs in enhanced uplink (EU) operation, the Node-B must know several WTRU-specific parameters. Under the current 3GPP standard, only the RNC knows the WTRU-specific parameters. The RNC obtains this information via radio resource control (RRC) messages conveying WTRU-specific information. Therefore, it is necessary to forward the information to the Node-B for proper scheduling of radio resources in EU transmissions.

[0004] The publications EP 1139605 A, GB 2358551 A and EP 1341318 A2 disclose prior art on wireless communication systems.

[0005] Further prior art on wireless communication systems can be found in the publication "3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Feasibility Study for Enhanced Uplink for UTRA FDD; (release 6)", 3GPP Standard; 3GPP TR 25.896, 20030901 3rd Generation Partnership Project (3GPP), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, no V1.0.0, 1 September 2003, pages 1-63.

SUMMARY



[0006] The present invention relates to a Node-B and a Wireless Transmit/Receive Unit WTRU for transferring WTRU-specific information to the Node-Bs to support EU operation in a wireless communication system. An RNC obtains WTRU-specific information and transfers the WTRU-specific information to the Node-Bs. Each Node-B is configured to schedule UL transmissions from a WTRU and utilizes the WTRU-specific information in operation of EU transmissions.

BRIEF DESCRIPTION OF THE DRAWINGS



[0007] 

Figure 1 is a diagram of a wireless communication system.

Figure 2 is a block diagram for transferring WTRU-specific information among network entities in accordance with the present invention.

Figure 3 is a flow diagram of a process for transferring WTRU-specific information in accordance with the present invention.


DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS



[0008] The present invention will be described with reference to the drawing figures wherein like numerals represent like elements throughout.

[0009] Hereafter, the terminology "WTRU" includes but is not limited to a user equipment, a mobile station, a fixed or mobile subscriber unit, a pager, or any other type of device capable of operating in a wireless environment. When referred to hereafter, the terminology "Node-B" includes but is not limited to a base station, a site controller, an access point or any other type of interfacing device in a wireless environment.

[0010] Figure 1 is a block diagram of a wireless communication system 100 in which an RNC 106 controls a plurality of Node-Bs 104, (only one being shown), and each Node-B 104 covers one or more cells 108a, 108b, 108c. There is typically one "serving cell" that serves the WTRU 102, but the WTRU 102 may be in soft handover with several cells at one time. For example, in EU operation, UL transmissions are scheduled and radio resources are assigned by the Node-B 104 to the WTRU 102 through a "serving" cell, for example cell 108c, to which the WTRU 102 has established a connection. The WTRU 102 may also be connected to other cells in support of soft handover.

[0011] Figure 2 is a block diagram of a system 200 for transferring WTRU-specific information to support EU operation in accordance with the present invention. The system 200 includes at least one WTRU 202, at least one Node-B 204, and at least one RNC 206. Communication links support signaling 208, 210, 212 between the WTRU 202, the Node-B 204 and the RNC 206. Initially, an RNC 206 obtains WTRU-specific information from a WTRU 202 using RRC messaging 208 during the initial connection. The information transferred from the WTRU 202 that is needed by the Node-B 204 is primarily physical transmission and reception capability information. The WTRU-specific information is then forwarded from the RNC 206 to a Node-B 204 to be used in scheduling UL transmissions for the WTRU 202.

[0012] A new signaling procedure may be utilized to transfer the information from the RNC 206 to the Node-B 204. Alternatively, the existing mechanisms, (for example the Radio Link Setup procedure over Iur and Iub interfaces), may be modified in order for the RNC 206 to forward relevant WTRU-specific information to the Node-B 204. Although the specific protocol or format used to transmit the information is not critical to the present invention, by way of the present example, the transfer of the information from the RNC 206 to the Node-B 204 is via Iub interface 210 and Iur interface. The RNC 206 transfers the WTRU-specific information to the Node-B 204 via the Radio Network Subsystem Application Protocol (RNSAP) control procedure (over the Iur interface) and the Node B Application Part (NBAP) control protocol (over the Iur interface). This information may be signaled along with the Radio Link Setup procedure in the UTRAN.

[0013] The forwarding of the WTRU-specific information may occur in response to a discrete event, such as when the WTRU 202 enters or establishes service in the service area covered by the RNC 206, or when the WTRU 202 leaves the service area. Alternatively, the forwarding of the WTRU specific information may occur periodically during the lifetime of a radio link whereby the WTRU 202 updates the WTRU-specific information.

[0014] The transfer of the WTRU-specific information may be initiated by either the RNC 206 or the Node-B 204. If it is initiated by the RNC 206, the WTRU-specific information is transferred at the initiation of the service or at the detection of change of WTRU-specific information from the RNC 206 to the Node-Bs 204. Alternatively, a Node-B 204 may request the information to be forwarded from the RNC 206 to the Node-B 204, and the RNC 206 subsequently transfers the information upon receipt of the request from the Node-B 204.

[0015] WTRU-specific information includes, but is not limited to: WTRU capabilities with respect to EU; information affecting data rates and throughput; and information regarding physical and transport channel characteristics allocated to a WTRU and relevant to a Node-B.

[0016] Information affecting data rates and throughput includes, but is not limited to: the number of multi-codes supported for UL physical channels; modulation schemes and coding rates supported for UL physical channels; automatic repeat request (ARQ) buffer or memory sizes in the WTRU; WTRU power class; number of hybrid ARQ (H-ARQ) processes supported in the WTRU; the form of available WTRU memory for EU; supported bit rates and bits receivable per transmit time interval (TTI) at layer 1 (L1) or layer 2 (L2) level; and capability for simultaneous reception of other than EU-specific channels by the WTRU.

[0017] Information on physical and transport channel characteristics includes, but is not limited to: maximum or minimum power settings of UL or DL physical channels; shared or dedicated physical channels allocated by that WTRU (spreading and scrambling codes, periodicity or enumerations of time intervals when the WTRU can be allocated shared channel usage); and information on HSDPA WTRU capability class for DL services.

[0018] The present invention is applicable to both frequency division duplex (FDD) and time division duplex (TDD) modes. Because of the commonality of higher layer (RRC or via Iur/Iub) signaling for FDD and TDD modes, all parameters listed above also apply to a TDD mode. For a TDD application, some TDD-only parameters should also be included, such as number of EU TDD service timeslots per WTRU, number of EU TDD spreading codes per WTRU and per time slot, and allowable and configurable power settings of physical channels of EU TDD WTRU per timeslot and per WTRU.

[0019] High Speed Data Packet Architecture (HSDPA) WTRU capabilities for DL data transmissions have several common attributes to EU WTRU capabilities for UL data transmissions. Since a Node-B provides scheduling of both DL HSDPA and UL EU services, the Node-B has the ability to dynamically distribute capabilities between UL and DL services, potentially on a TTI basis, and to better determine UL and DL transmissions for improved quality of service (QoS) and more efficient use of radio resources.

[0020] Figure 3 is a flow diagram of a process 300 for transferring WTRU-specific information in accordance with the present invention. A WTRU 202 establishes a connection 212 to a Node-B 204 in a region covered by an RNC 206 (step 202). The RNC 206 obtains WTRU-specific information from the WTRU 202 using RRC messaging (step 204). The RNC 206 transfers the WTRU-specific information to the Node-B 204 (step 206). The transfer of WTRU-specific information may be initiated by the Node-B 204. The Node-B 204 is configured to schedule UL transmissions from the WTRU 202, and utilize the WTRU-specific information in operation of EU transmission.


Claims

1. A Node-B comprising an interfacing device for a wireless environment;
characterized in that the interfacing device is configured to cause the Node-B to:

receive a message from a Radio Network Controller RNC (106; 206) controlling the Node-B (104; 204), the message being forwarded to the Node-B upon entry or establishment of service of a wireless transmit/receive unit, WTRU (120; 202), in a service area covered by the Node-B and the RNC and being based on Enhanced Uplink, EU, capability information of the WTRU included in WTRU-specific information provided to the RNC; and

transmit, based on the message, scheduling information to the WTRU for one or more EU transmissions from the WTRU.


 
2. The Node-B according to claim 1, wherein the WTRU-specific information further includes one or more of: information regarding a buffer size associated with H-ARQ operation in the WTRU (102; 202), information affecting data rates and throughput, information on physical and transport channel characteristics, at least one time division duplex TDD-specific parameter, WTRU capability information with respect to high-speed downlink packet access HSDPA.
 
3. The Node-B according to any one of claims 1-2, wherein the interfacing device is further configured to cause the Node-B (104; 204) to:

receive another message from the RNC controlling the Node-B, the another message being based on WTRU-specific information including updated EU capability information of the WTRU; and

transmit, based on the another message, updated scheduling information to the WTRU for one or more EU transmissions from the WTRU.


 
4. The Node-B according to claim 3, wherein the updated EU capability information is included in WTRU-specific information, wherein the interfacing device causes the Node-B(104; 204) to transmit the updated scheduling information to the WTRU (102; 202) on a condition that the updated WTRU-specific information has changed.
 
5. The Node-B according to any one of claims 1-4, further configured to schedule the one or more EU transmissions from the WTRU using a wireless communication interface.
 
6. The Node-B according to any one of claims 1-5, wherein the WTRU, Node-B (104; 204) and the RNC (106; 206) are compliant with a Third Generation Partnership Project standard.
 
7. A wireless network comprising:

a plurality of Node-Bs (104; 204); and

a Radio Network Controller RNC (106; 206) configured to control the plurality of Node-Bs;

wherein at least one of the Node-Bs is a Node-B according to any one of claims 1-6.


 
8. A Wireless Transmit/Receive Unit WTRU comprising:

an interfacing device for a wireless environment;

characterized in that the interfacing device is configured to cause the WTRU (102; 202) to:

transmit enhanced uplink EU capability information to a radio network controller RNC (106; 206), wherein the EU capability information of the WTRU is included in WTRU-specific information provided to the RNC, the WTRU-specific information including information regarding a buffer size associated with H-ARQ operation in the WTRU, wherein entry of the WTRU or its establishment of service in a service area covered by a Node-B (104; 204) and the RNC, results in the RNC forwarding the EU capability information to the Node-B;

receive, from the Node-B, scheduling information based on the EU capability information; and

transmit, based on the scheduling information, one or more EU transmissions to the Node-B.


 
9. The WTRU according to claim 8, wherein the WTRU-specific information further includes one or more of: information affecting data rates and throughput, information on physical and transport channel characteristics, at least one time division duplex TDD-specific parameter, WTRU capability information with respect to high-speed downlink packet access HSDPA.
 
10. The WTRU according to claim 8 or 9, wherein the interfacing device is further configured to cause the WTRU (102; 202) to:

transmit updated EU capability information of the WTRU to the RNC; and

transmit one or more EU transmissions to the Node-B (104; 204) according to scheduling information received from the Node-B based on updated EU capability information forwarded by the RNC (106; 206) to the Node-B.


 
11. The WTRU according to claim 10, wherein the updated EU capability information is included in WTRU-specific information, wherein the interfacing device is further configured to cause the WTRU (102 202) to transmit the updated EU capability information to the RNC (106; 206) periodically and to transmit the one or more EU transmissions to the Node-B (104; 204) according to scheduling information received from the Node-B based on the updated EU capability information forwarded by the RNC to the Node-B on a condition that the WTRU-specific information has changed.
 
12. The WTRU according to any one of claims 8-11, further configured to schedule the one or more EU transmissions using a wireless communication interface.
 
13. The WTRU according to any one of claims 8-12, wherein the WTRU (102; 202), Node-B (104; 204) and the RNC (106; 206) are compliant with a Third Generation Partnership Project standard.
 


Ansprüche

1. Node-B mit einer Schnittstellenvorrichtung für eine drahtlose Umgebung;
gekennzeichnet dadurch, dass die Schnittstellenvorrichtung konfiguriert ist, um den Node-B zu Folgendem zu veranlassen:

Empfangen einer Nachricht von einer Funknetzsteuerung RNC (106; 206), die den Node-B (104; 204) steuert, wobei die Nachricht an den Node-B beim Eintreten oder Einrichten des Dienstes einer drahtlosen Übertragungs-/Empfangseinheit, WTRU (120; 202) in einem Dienstbereich weitergeleitet wird, der durch den Node-B und die RNC abgedeckt wird und auf verbesserten Uplink(EU)-Fähigkeitsinformationen der WTRU basiert, die in den WTRU-spezifischen Informationen enthalten sind, die der RNC bereitgestellt werden; und

Übertragen basierend auf der Nachricht von Planungsinformationen an die WTRU für eine oder mehrere EU-Übertragungen von der WTRU.


 
2. Node-B nach Anspruch 1, wobei die WTRU-spezifischen Informationen ferner eines oder mehreres von Folgendem enthalten: Informationen bezüglich einer Puffergröße, die mit der H-ARQ-Operation in der WTRU (102; 202) assoziiert ist, Informationen, die Datenraten und den Durchsatz beeinflussen, Informationen über physikalische und Transportkanaleigenschaften, mindestens einen Zeitduplex-TDD-spezifischen Parameter, WTRU-Fähigkeitsinformationen in Bezug auf Hochgeschwindigkeits-Downlink-Paketzugang HSDPA.
 
3. Node-B nach einem der Ansprüche 1-2, wobei die Schnittstellenvorrichtung ferner konfiguriert ist, um den Node-B (104; 204) zu Folgendem zu veranlassen:

Empfangen einer anderen Nachricht von der RNC, die den Node-B steuert, wobei die andere Nachricht auf WTRU-spezifischen Informationen basiert, die aktualisierte EU-Fähigkeitsinformationen der WTRU enthalten; und

Übertragen basierend auf der anderen Nachricht von aktualisierten Planungsinformationen an die WTRU für eine oder mehrere EU-Übertragungen von der WTRU.


 
4. Node-B nach Anspruch 3, wobei die aktualisierten EU-Fähigkeitsinformationen in WTRU-spezifischen Informationen enthalten sind, wobei die Schnittstellenvorrichtung den Node-B (104; 204) veranlasst, die aktualisierten Planungsinformationen unter der Bedingung an die WTRU (102; 202) zu übertragen, dass sich die aktualisierten WTRU-spezifischen Informationen geändert haben.
 
5. Node-B nach einem der Ansprüche 1-4, welcher ferner konfiguriert ist, um die eine oder mehreren EU-Übertragungen von der WTRU unter Verwenden einer drahtlosen Kommunikationsschnittstelle zu planen.
 
6. Node-B nach einem der Ansprüche 1-5, wobei die WTRU, der Node-B (104; 204) und die RNC (106; 206) mit einem Standard des Partnerschaftsprojekts der dritten Generation kompatibel sind.
 
7. Drahtloses Netz, welches Folgendes umfasst:

mehrere Node-B (104; 204); und

eine Funknetzsteuerung RNC (106; 206), die konfiguriert ist, um die mehreren Node-B zu steuern;

wobei mindestens einer der Node-B ein Node-B nach einem der Ansprüche 1-6 ist.


 
8. Drahtlose Übertragungs-/Empfangseinheit WTRU, welche Folgendes umfasst:

eine Schnittstellenvorrichtung für eine drahtlose Umgebung;

gekennzeichnet dadurch, dass die Schnittstellenvorrichtung konfiguriert ist, um die WTRU (102; 202) zu Folgendem zu veranlassen:

Übertragen verbesserter EU-Fähigkeitsinformationen an eine Funknetzsteuerung RNC (106; 206), wobei die EU-Fähigkeitsinformationen der WTRU in WTRU-spezifischen Informationen enthalten sind, die der RNC bereitgestellt werden, wobei die WTRU-spezifischen Informationen Informationen bezüglich einer Puffergröße enthalten, die mit der H-ARQ-Operation in der WTRU assoziiert ist, wobei das Eintreten der WTRU oder ihr Einrichten des Dienstes in einem Dienstbereich, der durch einen Node-B (104; 204) und die RNC abgedeckt wird, dazu führt, dass die RNC die EU-Fähigkeitsinformationen an den Node-B weiterleitet;

Empfangen von Planungsinformationen von dem Node-B basierend auf den EU-Fähigkeitsinformationen; und

Übertragen einer oder mehrerer EU-Übertragungen an den Node-B basierend auf den Planungsinformationen.


 
9. WTRU nach Anspruch 8, wobei die WTRU-spezifischen Informationen ferner eines oder mehreres von Folgendem enthalten: Informationen, die Datenraten und den Durchsatz beeinflussen, Informationen über physikalische und Transportkanaleigenschaften, mindestens einen Zeitduplex-TDD-spezifischen Parameter, WTRU-Fähigkeitsinformationen in Bezug auf Hochgeschwindigkeits-Downlink-Paketzugang HSDPA.
 
10. WTRU nach Anspruch 8 oder 9, wobei die Schnittstellenvorrichtung ferner konfiguriert ist, um die WTRU (102; 202) zu Folgendem zu veranlassen:

Übertragen aktualisierter EU-Fähigkeitsinformationen der WTRU an die RNC; und

Übertragen einer oder mehrerer EU-Übertragungen an den Node-B (104; 204) gemäß Planungsinformationen, die von dem Node-B empfangen werden, basierend auf aktualisierten EU-Fähigkeitsinformationen, die durch die RNC (106; 206) an den Node-B weitergeleitet werden.


 
11. WTRU nach Anspruch 10, wobei die aktualisierten EU-Fähigkeitsinformationen in WTRU-spezifischen Informationen enthalten sind, wobei die Schnittstellenvorrichtung ferner konfiguriert ist, um die WTRU (102 202) zu veranlassen, die aktualisierten EU-Fähigkeitsinformationen periodisch an die RNC (106; 206) zu übertragen und die eine oder mehreren EU-Übertragungen an den Node-B (104; 204) entsprechend der Planungsinformationen zu übertragen, die von dem Node-B empfangen werden, basierend auf den aktualisierten EU-Fähigkeitsinformationen, die durch die RNC unter der Bedingung an den Node-B weitergeleitet werden, dass sich die WTRU-spezifischen Informationen geändert haben.
 
12. WTRU nach einem der Ansprüche 8-11, welche ferner konfiguriert ist, um die eine oder mehreren EU-Übertragungen unter Verwenden einer drahtlosen Kommunikationsschnittstelle zu planen.
 
13. WTRU nach einem der Ansprüche 8-12, wobei die WTRU (102; 202), der Node-B (104; 204) und die RNC (106; 206) mit einem Standard des Partnerschaftsprojekts der dritten Generation kompatibel sind.
 


Revendications

1. Nœud B comprenant un dispositif d'interface pour un environnement sans fil ;
caractérisé en ce que le dispositif d'interface est configuré pour amener le nœud B à :

recevoir un message en provenance d'un contrôleur de réseau radio RNC (106; 206) commandant le nœud B (104; 204), le message étant transféré au nœud B lors de l'entrée ou de l'établissement d'un service d'une unité de transmission/réception sans fil, WTRU (120; 202), dans une zone de service couverte par le nœud B et le RNC et étant basé sur des informations de capacité liaison montante améliorée, EU, de la WTRU incluses dans des informations spécifiques à une WTRU fournies au RNC ; et

transmettre, sur la base du message, des informations de planification à la WTRU pour une ou plusieurs transmissions d'EU à partir de la WTRU.


 
2. Nœud B selon la revendication 1, où les informations spécifiques à une WTRU comprennent en outre un ou plusieurs parmi les éléments suivants : des informations concernant une taille de mémoire tampon associée à une opération de H-ARQ dans la WTRU (102; 202), des informations affectant des débits de données et de traitement, des informations sur des caractéristiques de canaux physiques et de transport, au moins un paramètre spécifique à un duplexage par répartition dans le temps, TDD, des informations de capacité de WTRU par rapport à l'accès par paquets en liaison descendante haut débit, HSDPA.
 
3. Nœud B selon l'une quelconque des revendications 1 à 2, où le dispositif d'interface est configuré en outre pour amener le nœud B (104; 204) à :

recevoir un autre message à partir du RNC commandant le nœud B, l'autre message étant basé sur des informations spécifiques à une WTRU incluant des informations de capacité d'EU mises à jour de la WTRU ; et

transmettre, sur la base de l'autre message, des informations de planification mises à jour à la WTRU pour une ou plusieurs transmissions d'EU à partir de la WTRU.


 
4. Nœud B selon la revendication 3, où les informations de capacité d'EU mises à jour sont incluses dans des informations spécifiques à une WTRU, où le dispositif d'interface amène le nœud B (104; 204) à transmettre les informations de planification mises à jour à la WTRU (102; 202) à condition que les informations spécifiques à une WTRU mises à jour aient changé.
 
5. Nœud B selon l'une quelconque des revendications 1 à 4, configuré en outre pour planifier les une ou plusieurs transmissions d'EU à partir de la WTRU en utilisant une interface de communication sans fil.
 
6. Nœud B selon l'une quelconque des revendications 1 à 5, où la WTRU, le nœud B (104; 204) et le RNC (106; 206) sont conformes à une norme de projet de partenariat de troisième génération.
 
7. Réseau sans fil comprenant :

une pluralité de nœuds B (104; 204) ; et

un contrôleur de réseau radio RNC (106; 206) configuré pour commander la pluralité de nœuds B ;

où au moins l'un des nœuds B est un nœud B selon l'une quelconque des revendications 1 à 6.


 
8. Unité de transmission/réception sans fil WTRU comprenant :

un dispositif d'interface pour un environnement sans fil ;

caractérisé en ce que le dispositif d'interface est configuré pour amener la WTRU (102; 202) à :

transmettre des informations de capacité de liaison montante améliorée EU à un contrôleur de réseau radio RNC (106; 206), où les informations de capacité d'EU de la WTRU sont incluses dans des informations spécifiques à une WTRU fournies au RNC, les informations spécifiques à une WTRU incluant des informations concernant une taille de mémoire tampon associée à une opération de H-ARQ dans la WTRU, où l'entrée de la WTRU ou son établissement de service dans un zone de service couverte par un nœud B (104; 204) et le RNC, aboutit au transfert, par le RNC, des informations de capacité d'EU au nœud B ;

recevoir, à partir du nœud B, des informations de planification sur la base des informations de capacité d'EU ; et

transmettre, sur la base des informations de planification, une ou plusieurs transmissions d'EU au nœud B.


 
9. WTRU selon la revendication 8, où les informations spécifiques à une WTRU comprennent en outre un ou plusieurs parmi les éléments suivants : des informations affectant des débits de données et de traitement, des informations sur des caractéristiques de canaux physiques et de transport, au moins un paramètre spécifique de duplexage par répartition dans le temps, TDD, des informations de capacité de WTRU par rapport à l'accès par paquets en liaison descendante haut débit HSDPA.
 
10. WTRU selon la revendication 8 ou 9, où le dispositif d'interface est configuré en outre pour amener la WTRU (102; 202) à :

transmettre des informations de capacité d'EU mises à jour de la WTRU au RNC ; et

transmettre une ou plusieurs transmissions d'EU au nœud B (104; 204) selon des informations de planification reçues à partir du nœud B sur la base d'informations de capacité d'EU mises à jour transférées par le RNC (106; 206) au nœud B.


 
11. WTRU selon la revendication 10, où les informations de capacité d'EU mises à jour sont incluses dans des informations spécifiques à une WTRU, où le dispositif d'interface est configuré en outre pour amener la WTRU (102; 202) à transmettre les informations de capacité d'EU mises à jour au RNC (106; 206) périodiquement et à transmettre l'une ou plusieurs transmissions d'EU au nœud B (104; 204) selon des informations de planification reçues à partir du nœud B sur la base des informations de capacité d'EU mises à jour transférées par le RNC au nœud B à condition que les informations spécifiques à une WTRU aient changé.
 
12. WTRU selon l'une quelconque des revendications 8 à 11, configurée en outre pour planifier les une ou plusieurs transmissions d'EU en utilisant une interface de communication sans fil.
 
13. WTRU selon l'une quelconque des revendications 8 à 12, où la WTRU (102; 202), le nœud B (104; 204) et le RNC (106; 206) sont conformes à une norme de projet de partenariat de troisième génération.
 




Drawing








Cited references

REFERENCES CITED IN THE DESCRIPTION



This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

Patent documents cited in the description




Non-patent literature cited in the description