WO2012146132A1 - Procédé et système de transmission d'informations de capacité - Google Patents

Procédé et système de transmission d'informations de capacité Download PDF

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Publication number
WO2012146132A1
WO2012146132A1 PCT/CN2012/073978 CN2012073978W WO2012146132A1 WO 2012146132 A1 WO2012146132 A1 WO 2012146132A1 CN 2012073978 W CN2012073978 W CN 2012073978W WO 2012146132 A1 WO2012146132 A1 WO 2012146132A1
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WO
WIPO (PCT)
Prior art keywords
message
denb
capability information
cell
function
Prior art date
Application number
PCT/CN2012/073978
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English (en)
Chinese (zh)
Inventor
陈琳
王昕�
奚进
翟恒星
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012146132A1 publication Critical patent/WO2012146132A1/fr

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0072Transmission or use of information for re-establishing the radio link of resource information of target access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/005Moving wireless networks

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and system for transmitting capability information.
  • LTE-Advanced Long-Term Evolution advance
  • LTE-Advanced retains the core of LTE for the evolution of Long-Term Evolution (LTE), and on this basis, it uses a series of technologies to expand the frequency domain and airspace to improve the frequency utilization. Increase the system capacity and other purposes.
  • Wireless Relay technology one of the technologies in LTE-Advanced, aims to extend the coverage of cells, reduce dead zones in communications, balance load, transfer hotspots, and save user equipment (User Equipment, referred to as UE) transmit power.
  • a relay node provides similar functions and services to a UE accessing its cell, and accesses a service through a wireless interface in a manner similar to a normal UE.
  • the eNB serving as the eNB is called a donor base station (Door eNB, abbreviated as DeNB).
  • DeNB donor base station
  • the RN and the DeNB Different from the wired Sl and X2 connections of the common base station, the RN and the DeNB establish a wireless link, which carries all the control plane information.
  • Step 201 The RN obtains the initial configuration parameters from the Operation and Maintenance ( ⁇ ) system and accesses the selected DeNB.
  • the RN establishes a relationship with the DeNB.
  • Radio Resource Control (RRC) connection When the RN replies to the DeNB with an RRC Connection Setup Complete message, the message carries a cell indicating whether RN subframe configuration is required, and the appearance of the cell indicates that the node is a Relay node. Whether the subframe configuration is required indicates the type of the RN;
  • RRC Radio Resource Control
  • Step 202 The network element such as the Mobility Management Entity (MME) located on the core network side performs operations such as authenticating the RN, and the DeNB performs corresponding reconfiguration according to the information replied by the core network.
  • SI that is, communicates with the core network through the DeNB
  • X2 the communication with the other neighboring eNB through the DeNB
  • the UE provides similar functions and services as the eNB.
  • RNs The deployment of the RN is fixed in the existing scenarios and requirements, and does not support more complex carriers such as Carrier Aggregation (CA) and Multimedia Broadcast/Multicast Service (MBMS). Class enhancements. However, the emergence of new scenarios and new services will require better and more stable performance in terms of throughput and faster transmission rates. Therefore, RNs also need to support mobility such as handover, support for MBMS and CA enhancements. Upgrades in functions and other aspects. However, after the RN is upgraded, the RN upgrade capability does not work properly, and the DeNB cannot perform the corresponding operation, which in turn causes the system performance to decrease. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a method and system for transmitting capability information, which can improve system performance.
  • the present invention provides a capability information sending method, including: a relay node (RN) sends a cell for indicating current capability information of the RN to a host base station (DeNB) through control plane signaling. ;
  • RN relay node
  • DeNB host base station
  • the DeNB performs corresponding configuration and/or scheduling on the RN according to the cell.
  • the step of the RN transmitting the information indicating the current capability information of the RN to the DeNB by using the control plane signaling includes: the RN in the process of accessing the DeNB, or in the process of configuring the update, Or, in the RRC connection re-establishment process, the cell used to indicate the current capability information of the RN is sent to the DeNB by using control plane signaling.
  • the information element used to indicate the current capability information of the RN includes: identifier information indicating that the RN has a certain function, or a request for a unique configuration required after the RN supports a certain function. information.
  • the function comprises one or more of the following functions: a mobile handover function, a Multimedia Broadcast Multicast Service (MBMS) function, a Carrier Aggregation (CA) function.
  • MBMS Multimedia Broadcast Multicast Service
  • CA Carrier Aggregation
  • control plane signaling includes: a radio resource control (RRC) message, or an S1 message, Or X2 message.
  • RRC radio resource control
  • the RRC message includes: a radio resource control connection setup complete message, or a radio resource control connection setup request message.
  • the S1 message includes: an S1 setup request message, or a new S1 message.
  • the X2 message includes: an X2 setup request message, or a new X2 message.
  • the present invention also provides a capability information transmitting system including a first device and a second device, wherein:
  • the first device located in the relay node (RN), is configured to: send, by the control plane signaling, a cell for indicating the current capability information of the RN to the host base station (DeNB);
  • the second device located in the DeNB, is configured to: perform corresponding configuration and/or scheduling on the RN according to the cell.
  • the first device is configured to: send, by using control plane signaling, a cell for indicating the current capability information of the RN to the DeNB by: the first device accessing the DeNB at the RN In the process of the RN configuration update, or in the RRC connection re-establishment process, the cell for indicating the RN current capability information is sent to the DeNB by using control plane signaling.
  • the information element used to indicate the current capability information of the RN includes: identifier information indicating that the RN has a certain function, or a request for a unique configuration required after the RN supports a certain function. information.
  • the function comprises one or more of the following functions: a mobile handover function, a Multimedia Broadcast Multicast Service (MBMS) function, a Carrier Aggregation (CA) function.
  • MBMS Multimedia Broadcast Multicast Service
  • CA Carrier Aggregation
  • control plane signaling includes: a radio resource control (RRC) message, or an S1 message, or an X2 message.
  • RRC radio resource control
  • the RRC message includes: a radio resource control connection setup complete message, or a radio resource control connection setup request message.
  • the S1 message includes: an S1 setup request message, or a new S1 message.
  • the X2 message includes: an X2 setup request message, or a new X2 message.
  • the RN accesses the DeNB or the configuration update or the RRC connection re-establishment
  • the capability information of the RN is sent to the DeNB through the control plane signaling, so that the DeNB can perform corresponding configuration according to the function supported by the RN.
  • Scheduling on the one hand, improves system performance, on the other hand, it can meet business needs and provide better services for user terminals.
  • FIG. 1 is a schematic diagram of a network structure using a wireless relay technology
  • FIG. 2 is a simplified schematic diagram of a normal RN accessing a network
  • Figure 3 is a flow chart according to a preferred embodiment of the present invention.
  • FIG. 5 is a flow chart of a preferred embodiment 3 in accordance with the present invention. Preferred embodiment of the invention
  • the present invention provides the following technical solutions:
  • the RN sends a cell for indicating the current capability information of the RN to the DeNB through control plane signaling, and the DeNB performs corresponding configuration and/or scheduling on the RN according to the cell.
  • the functions that the RN can support can be directly obtained by the RN's own hardware or downloaded from the OAM.
  • the supported functions are as follows: Support for mobile switching, support for MBMS, or support for CA.
  • the RN may send, by the control plane signaling, the cell indicating the current capability information of the RN to the DeNB in the process of accessing the DeNB or in the process of configuring the update or in the RRC connection re-establishment process.
  • the foregoing control plane signaling may be an RRC message, such as an RRC Connection Setup Complete message; or may be an S1 message (such as an S1 setup request message) or an X2 message (such as an X2 setup request message) on a radio link between the RN and the DeNB.
  • the information for indicating the current capability information of the RN may be identifier information that directly indicates that the RN has a certain function, such as identifier information that supports mobile handover, or may be a unique configuration required to support a certain function.
  • Requesting information the DeNB can obtain the new capability of the RN by receiving the request information. For example, after the RN supports the function of the mobile handover, the RN needs its own independent eNB identity (evolved NodeB Identifier, eNB ID for short) or other unique In the parameter configuration, the RN obtains the eNB ID required by the DeNB, so that the DeNB knows that the RN supports mobile handover, and allocates an eNB ID to it.
  • eNB ID evolved NodeB Identifier
  • the DeNB should be able to identify the received information and make the appropriate configuration and/or scheduling accordingly.
  • the RN can support mobile handover. If the RN requests its own eNB ID, the DeNB knows that the RN can support it. Mobile handover, and assigned RN eNB ID and/or other configuration; at the same time, the DeNB needs to send a system message indicating mobile related information (including frequency and reselection parameters related to cell reselection, etc.) to the RN, so that the RN Use this mobile switching feature.
  • a system implementing the above method includes a first device and a second device, wherein:
  • the first device located at the RN, is configured to send, by using control plane signaling, a cell for indicating the current capability information of the RN to the DeNB;
  • the second device located in the DeNB, is configured to perform corresponding configuration and/or scheduling on the RN according to the cell.
  • the first device sends the cell for indicating the current capability information of the RN to the DeNB by using control plane signaling in the following manner:
  • the first device may be used to indicate the current capability information of the RN during the process of the RN accessing the DeNB, or during the RN configuration update, or during the RRC connection re-establishment process.
  • the cells are sent to the DeNB through control plane signaling.
  • Embodiment 1 According to the emergence of new scenarios (such as high-speed rail) and / or new services, RN also has the corresponding ability to update and upgrade. After the RN is configured by its own hardware or downloaded from the OAM to learn the new capability, the RN will indicate itself during the process of accessing the DeNB or during the configuration update according to functions that it can support, such as mobile handover, MBMS or CA. The cell of the capability information is sent to the DeNB through the RRC message. The DeNB performs corresponding configuration and scheduling on the RN according to the cell, so that the update function of the RN can be correctly used to meet the requirements of the scenario and the service, and improve the overall performance of the system.
  • Step 301 The RN is configured by itself or from the OAM to obtain new capability information, and it is known that the RN can support the mobile handover.
  • the RN uses the RRC message to indicate the current capability information of the RN. Send to the DeNB;
  • the RRC message may be an RRC Connection Setup Complete message, or may be an RRC Connection Request (RRC Connection Request) message, or other suitable RRC message sent by the RN to the DeNB, or even a new RRC message.
  • RRC Connection Request RRC Connection Request
  • the cell for indicating the current capability information of the RN may be the identifier information directly labeling the mobile switching function, or may be the unique configuration request information different from the original normal RN required to support the mobile switching function.
  • Step 302 The DeNB determines according to the received message: if it is the identifier information that directly indicates the supported function, the DeNB 4 performs corresponding configuration according to the identifier information. For example, if the RN indicates that it can support mobile handover, the DeNB is It allocates an eNB ID different from itself; if the RN is required to indicate that its own unique eNB ID is present, that is, the cell is a request requiring a unique configuration, the DeNB learns that the RN can support mobile handover, and the RN Assign its unique eNB ID.
  • the DeNB can perform the above-mentioned determination operations uniformly.
  • the DeNB may perform different operations for different cells. For example, if the cell is identification information indicating that the RN has a certain function, the DeNB configures and schedules the RN according to a function supported by the RN; The cell is the request information of the unique configuration required after the RN supports a certain function, and the DeNB determines the function supported by the RN according to the request, and configures and schedules the RN.
  • the DeNB notifies the RN of the configuration information of the RN, and the notification message may be an RRC connection.
  • the RRC Connection Reconfiguration message may also be another RRC message sent from the DeNB to the RN, or even an SI or X2 message; the RN may reply to the acknowledgement message after receiving, such as RRC connection reconfiguration complete (RRC Connection Reconfiguration) Complete ) message.
  • the DeNB After the DeNB knows that the RN can support the mobile handover, it can perform corresponding configuration and scheduling for the RN. For example, if the RN can support the handover, the DeNB needs to send a system message indicating the mobility related information to the RN, so that the RN can be correctly used.
  • the upgraded features are available to meet the needs of the network.
  • the foregoing process may also occur when the RN performs the RRC connection re-establishment.
  • the RN initiates an RRC connection re-establishment. This re-establishment may be initiated to the original DeNB, but may also be other DeNBs.
  • the cell for indicating the current capability information of the RN may be sent to the DeNB in the RRC connection re-establishment process.
  • the RN After the RN is configured by its own hardware or downloaded from the OAM to learn the new capability, the RN passes the cell for indicating its own capability information in the process of accessing the DeNB according to functions that it can support, such as mobile handover, MBMS, or CA.
  • the S1 message is sent to the DeNB, and the DeNB performs corresponding configuration and scheduling on the RN according to the cell, so that the update function of the RN can be correctly used to meet the requirements of the scenario and the service, and improve the overall performance of the system.
  • the specific steps are shown in Figure 4:
  • Step 401 The RN is configured by itself or from the OAM to obtain new capability information. It is known that the RN can support the mobile handover. In the process of accessing the DeNB, the RN uses the S1 message to indicate the current capability information of the RN. Sent to the DeNB (according to the existing architecture, the RN regards the DeNB as its own MME and establishes an S1 connection with it);
  • the S1 message may be an S1 setup request (SI SETUP REQUEST) message, or may be another suitable S1 message sent by the RN to the DeNB, or even a new S1 message.
  • SI SETUP REQUEST S1 setup request
  • the cell for indicating the current capability information of the RN may be the identifier information directly labeling the mobile switching function, or may be the unique configuration request information different from the original normal RN required to support the mobile switching function. , such as the eNB ID that is different from the DeNB required by the mobile RN.
  • Step 402 If it is the identification information directly indicating the support function, the DeNB according to the identifier The information is configured accordingly (for example, if the RN indicates that it can support mobile handover, the DeNB may assign an eNB ID different from itself); if the indication that the RN needs its own unique eNB ID appears, the DeNB learns the RN. Mobile handover can be supported, and the RN is assigned its unique eNB ID;
  • the DeNB notifies the RN of the configuration information of the RN.
  • the notification message may be an S1 message, such as an S1 SETUP RESPONSE message, or may be another S1 message sent from the DeNB to the RN, or even an RRC message. Or X2 message.
  • the RN After the RN is configured by its own hardware or after acquiring the new capability from the OAM, according to the functions that the RN can support, such as mobile handover, MBMS, or CA, the RN will use the letter indicating the current capability information of the RN during the process of accessing the DeNB.
  • the element is sent to the DeNB through the X2 message, and the DeNB performs corresponding configuration and scheduling on the RN according to the cell, so that the update function of the RN can be correctly used to meet the requirements of the scenario and the service, and improve the overall performance of the system.
  • the specific steps are shown in Figure 5:
  • Step 501 The RN is configured by itself or from the OAM to obtain new capability information. It is known that the RN can support the mobile handover. In the process of accessing the DeNB, the RN uses the X2 message to indicate the current capability information of the RN. Sent to the DeNB (according to the existing architecture, a wireless X2 connection is established between the RN and the DeNB);
  • the X2 message may be an X2 SETUP REQUEST message, or may be another suitable X2 message sent by the RN to the DeNB, or even a new X2 message.
  • the cell for indicating the current capability information of the RN may be the identifier information directly labeling the mobile switching function, or may be the unique configuration request information different from the original normal RN required to support the mobile switching function.
  • Step 502 If it is the identification information that directly indicates the support function, the DeNB makes a corresponding configuration according to the identifier information (for example, if the RN indicates that the RN can support the mobile handover, the DeNB may allocate an eNB ID different from itself); Instructing the RN to require the identity of its own unique eNB ID, the DeNB learns that the RN can support mobile handover and assigns its unique eNB ID to the RN. The DeNB notifies the RN of the configuration information of the RN.
  • the notification message may be an X2 message, such as an X2 SETUP RESPONSE message, or may be another X2 message sent from the DeNB to the RN, or even an RRC message. Or S1 message.
  • the RN has a new function and then sends a cell to the DeNB.
  • the RN may also send the function information supported by the RN to the DeNB in the foregoing embodiment before upgrading.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any particular combination of hardware and software.
  • the embodiment of the present invention transmits the capability information of the RN to the DeNB through the control plane signaling when the RN accesses the DeNB or the configuration update or the RRC connection re-establishment, so that the DeNB can respond to the RN according to the functions supported by the RN.
  • the configuration and scheduling on the one hand, improve system performance, on the other hand, it can meet business needs and provide better services for user terminals.

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

Abstract

La présente invention concerne un procédé et un système de transmission d'informations de capacité, le procédé consistant en ce qui suit : un nœud relais (RN) transmet une cellule pour indiquer les informations de capacité actuelles du RN à un eNB donneur (DeNB) par l'intermédiaire d'une signalisation de plan de commande ; le DeNB configure et/ou ordonnance en conséquence le RN selon la cellule. Le système comprend un premier dispositif situé au niveau du RN et un second dispositif situé au niveau du DeNB. La solution technique de la présente invention permet au DeNB de configurer et d'ordonnancer en conséquence un RN selon les fonctions prises en charge par ce dernier, améliorant ainsi d'une part la performance du système et permettant d'autre part de satisfaire les besoins du service, offrant ainsi un meilleur service pour les terminaux d'utilisateurs.
PCT/CN2012/073978 2011-04-29 2012-04-13 Procédé et système de transmission d'informations de capacité WO2012146132A1 (fr)

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CN201110111724.X 2011-04-29
CN201110111724.XA CN102761862B (zh) 2011-04-29 2011-04-29 一种能力信息发送方法及系统

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