WO2014058379A1 - Nodes, systems and methods in a cellular network - Google Patents

Nodes, systems and methods in a cellular network Download PDF

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Publication number
WO2014058379A1
WO2014058379A1 PCT/SE2013/051177 SE2013051177W WO2014058379A1 WO 2014058379 A1 WO2014058379 A1 WO 2014058379A1 SE 2013051177 W SE2013051177 W SE 2013051177W WO 2014058379 A1 WO2014058379 A1 WO 2014058379A1
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WO
WIPO (PCT)
Prior art keywords
common
dch
range
rnti
node
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/SE2013/051177
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English (en)
French (fr)
Inventor
Nianshan SHI
Anders FORSSELL
Francisco Manzano
Jose Luis Pradas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Priority to US14/432,274 priority Critical patent/US20150230227A1/en
Priority to EP13780424.1A priority patent/EP2904868B1/en
Priority to MX2015004216A priority patent/MX339627B/es
Priority to JP2015535612A priority patent/JP6096305B2/ja
Priority to IN1918DEN2015 priority patent/IN2015DN01918A/en
Publication of WO2014058379A1 publication Critical patent/WO2014058379A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/29—Control channels or signalling for resource management between an access point and the access point controlling device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/12—Access point controller devices

Definitions

  • Embodiments of the present disclosure relate to a node arranged to set up common Enhanced Dedicated Channel resources in a cellular network, the node being for example a Base transceiver station or a Controlling Radio Network Controller.
  • Embodiments of the present disclosure further relate to a method and system for setting up common Enhanced Dedicated Channel resources in a cellular network.
  • a network according to standard like 3GPP comprises a Core Network, CN, Radio Access Networks, RAN, and User Equipments, UE, attached to a RAN, such as the UMTS Terrestrial Radio Access Network, UTRAN, architecture.
  • wireless terminals communicate via a radio access network, RAN, with one or more core networks.
  • the wireless terminals can be mobile stations or other types of user equipment, UE, such as portable, pocket, hand-held, computer-included, or car- mounted mobile devices which communicate voice and/or data with radio access network, e.g., mobile telephones and laptops with wireless capability.
  • the RAN covers a geographical area which is divided into cell areas, with each cell area or group of cell areas being served by a radio access node.
  • a cell is a geographical area where radio coverage is provided by equipment at the radio access node. Each cell is identified by an identity within the local radio area.
  • the radio access nodes communicate over the air interface with the UE within the cells served by the node.
  • the Universal Mobile Telecommunications System, UMTS is a third generation mobile communication system, which evolved from the Global System for Mobile Communications, GSM, and is intended to provide improved mobile communication services based on Wideband Code Division Multiple Access , WCDMA, access technology.
  • UTRAN is essentially a radio access network using wideband code division multiple access for user equipment units, UEs.
  • E-DCH is used as the uplink transport channels providing much higher bandwidth for UEs in CELL_FACH state. There is a common pool of E-DCH
  • E-RNTI Enhanced Dedicated Channel
  • E-DCH Enhanced Dedicated Channel
  • NBAP Node B Application Part
  • Radio Network Transaction Identifier list is managed by the Node-B, however, it is RNC who grants the CELL_FACH E-RNTI and RNC send it to the UE through certain (e.g. cell update, Radio Bearer Reconfiguration) Radio Resource Control Protocol, RRC, messages.
  • RNC Radio Bearer Reconfiguration
  • E-RNTIs Transaction Identifiers
  • CRNC Controlling Radio Network Controller
  • One object of the embodiments of the disclosure is to improve communication in a Radio Access Networks, RAN.
  • a base transceiver station node B, arranged to set up common Enhanced Dedicated Channel, E-DCH, resources in a cellular network.
  • the node B is arranged to configure the common E-DCH resources.
  • the configuration of the common E-DCH resources comprises deciding at least one E-DCH Radio Network Transaction Identifier, E-RNTI, range for the common E-DCH resources and to send the at least one E-RNTI range for the common E-DCH resources to a Controlling Radio Network Controller, CRNC, so as to set up the common E-DHC resources.
  • E-RNTI E-RNTI Radio Network Transaction Identifier
  • CRNC Controlling Radio Network Controller
  • One advantage with this embodiment is that the base transceiver station, node B, decides the E-RNTIs for the common E-DCH resources.
  • the Controlling Radio Network Controller does not need to confirm this decision.
  • the base transceiver station, node B sends the at least one E-RNTI range for the common E-DCH resources to the Controlling Radio Network Controller, CRNC, the amount of information sent to the CRNC is independent of the number of E-RNTIs within the range.
  • the amount of information sent to the CRNC is independent of the number E-DCH Cell FACH users.
  • each at least one range comprises two values representing the start and end of the E-RNTI value for the common E-DCH resources.
  • node B is arranged to send the at least one E-RNTI range in a Node B
  • the node B is arranged to send the at least one E-RNTI range in a NBAP message as new protocol Information Elements (lEs).
  • LEs new protocol Information Elements
  • the node B comprises a processor arranged to configure the common E-DCH resources comprising deciding the at least one E-RNTI ranges for the common E-DCH resources to use, a memory arranged to store information about the decided E-RNTI ranges for the common E-DCH resources to use, and communication circuitry arranged to send the at least one range of the E-RNTI for the common E-DCH resources to the CRNC.
  • the system comprises at least one base transceiver station, node B, and at least one controlling Radio Network
  • the at least one node B is arranged to configure the common E-DCH resource comprising deciding at least one E-DCH Radio Network Transaction Identifier, E-RNTI, range for the common E-DCH resources to use and to send the at least one E-RNTI range for the common E-DCH resources to its CRNC, so as to set up the common E-DHC resources.
  • E-RNTI E-RNTI Radio Network Transaction Identifier
  • Each range may comprise two values representing the start and end of the E-RNTI value for the common E-DCH resources.
  • At least one node B is in one option arranged to send the at least one E-RNTI ranges in a Node B Application Part, NBAP, message as new protocol information elements (lEs).
  • NBAP Node B Application Part
  • At least one node B comprisesin one option a processor arranged to configure the common E- DCH resource comprising deciding the at least one E-RNTI range for the common E-DCH resources to use, a memory arranged to store information about the decided at least one E- RNTI range for the common E-DCH resources to use, and communication circuitry arranged to send the at least one E-RNTI range for the common E-DCH resources to the CRNC.
  • the CRNC is arranged to receive the range of the E-RNTI for the common E-DCH resources provided by the node B and to allocate the E-RNTI within the at least one range provided by the node B for the common E-DCH users.
  • the CRNC comprises communication circuitry arranged to receive the at least one E-RNTI range for the common E-DCH resources provided by the node B and a processor arranged to allocate the E-RNTI within the at least one range for the common E-DCH users provided by the node B.
  • the cellular network is a UMTS Terrestrial Radio Access Network (UTRAN).
  • UTRAN UMTS Terrestrial Radio Access Network
  • One embodiment of the present disclosure also relates to a method in a cellular network for setting up common Enhanced Dedicated Channel, E-DCH, resources.
  • the method comprises performing at a node B the steps of configuring the common E-DCH resource comprising deciding at least one E-DCH Radio Network Transaction Identifier, E-RNTI, range for the common E-DCH resources to use and sending the at least one E-RNTI range for the common E- DCH resources to a Controlling Radio Network Controller, CRNC.
  • the at least one range comprises each two values representing the start and end of the E-RNTI value for the common E-DCH resources.
  • the method comprises performing at the CRNC the steps of receiving the at least one E-RNTI range for the common E-DCH resources provided by the node B and allocating the E-RNTI within the at least one range provided by the node B for the common E- DCH users.
  • One embodiment of the present disclosure relates to a controlling Radio Network Controller, CRNC, arranged to set up common Enhanced Dedicated Channel, E-DCH, resources in a cellular network.
  • the CRNC is arranged to configure the common E-DCH resources.
  • the configuration comprises pre-deciding at least one E-DCH Radio Network Transaction Identifier, E-RNTI, range for the common E-DCH resources and informing a Base transceiver station, node B, about the pre-decided at least one range for the common E-DCH resources.
  • One advantage with this embodiment is that the amount of information sent from the CRNC to Node B is independent of the number of E-RNTIs within the range. Accordingly, the amount of information sent to the CRNC is independent of the number E-DCH Cell FACH users.
  • the system comprises at least one Base transceiver station, node B, and at least one controlling Radio Network
  • the at least one CRNC is arranged to configure the common E-DCH resources.
  • the configuration comprises pre-deciding at least one E-DCH Radio Network
  • E-RNTI Transaction Identifier
  • the node B is then arranged to coordinate the at least one E-RNTI range for the common E-DCH resources decided by the CRNC and an E-DCH Radio Network Transaction, E- RNTI, for Cell Dedicated Channel, DCH, users and based thereon determine whether the at least one E-RNTI range for the common E-DCH resources pre-decided by the CRNC is acceptable.
  • the node B is arranged to accept the at least one range without responding to the CRNC when the at least one E-RNTI range for the common E-DCH resources is determined to be acceptable.
  • the node B is arranged to actively confirm the at least one range in a response to the CRNC when the at least one E-RNTI range for the common E-DCH resources is determined to be acceptable.
  • the node B is arranged to provide at least one proposed new E-RNTI range for the common E-DCH resources and to comprise the at least one proposed new range in a response to the CRNC when the at least one E-RNTI range for the common E-DCH resources is determined not to be acceptable.
  • One embodiment of the present disclosure relates to a method for setting up common Enhanced Dedicated Channel, E-DCH, resources.
  • the method comprises configuring at a Controlling Radio Network Controller, CRNC, the common E-DCH resource, said configuring comprising pre-deciding at least one E-DCH Radio Network Transaction, E-RNTI, range for the common E-DCH resources to use, and sending the at least one E-RNTI range for the common E-DCH resources to a Base transceiver station node B.
  • the method further comprises a step of receiving at the CRNC a response from the node B to the sent at least one E-RNTI range for the common E-DCH resources.
  • the response may be a confirmation message.
  • the response may comprise a proposed new range.
  • the method comprises steps of receiving at the node B the pre-decided at least one E-RNTI range for the common E-DCH resources provided by the CRNC, and evaluating at node B the received pre-decided at least one range, and based on the evaluation determining the at least one E-RNTI range for the common E-DCH resources. In one option, the method further comprising a step of node B transmitting a confirmation response to the CRNC based on the evaluation.
  • node B forms at least one proposed new range based on the evaluation and transmits the proposed at least one new range to the CRNC.
  • Fig 1 is a block diagram of an example of a network.
  • Fig 2 is a flow chart illustrating a method performed at node B for setting up common E-DCH resource in accordance with a first solution.
  • Fig 3 is a flow chart illustrating a method performed at CRNC for setting up common E-DCH resource in accordance with said first solution.
  • Fig 4 is a flow chart illustrating a method performed at node B for setting up common E-DCH resource in accordance with a second solution.
  • Fig 5 is a flow chart illustrating a method performed at CRNC for setting up common E-DCH resource in accordance with said second solution.
  • Fig 6 is a block diagram schematically illustrating an example of a node B in the network of Fig 1.
  • Fig 7 is a block diagram schematically illustrating an example of a CRNC in the network of Fig 1.
  • a network according to standard like 3GPP comprises a Core Network, CN, Radio Access Networks, RAN, and User Equipments, UE, attached to a RAN, such as the UMTS Terrestrial Radio Access Network, UTRAN, architecture.
  • wireless terminals communicate via a radio access network, RAN, with one or more core networks.
  • the wireless terminals can be mobile stations or other types of user equipment, UE, such as portable, pocket, hand-held, computer-included, or car- mounted mobile devices which communicate voice and/or data with radio access network, e.g., mobile telephones and laptops with wireless capability.
  • the RAN covers a geographical area which is divided into cell areas, with each cell area or group of cell areas being served by a radio access node.
  • a cell is a geographical area where radio coverage is provided by equipment at the radio access node. Each cell is identified by an identity within the local radio area.
  • the radio access nodes communicate over the air interface with the UE within the cells served by the node.
  • the Universal Mobile Telecommunications System is a third generation mobile communication system, which evolved from the Global System for Mobile Communications, GSM, and is intended to provide improved mobile communication services based on Wideband Code Division Multiple Access, WCDMA, access technology.
  • UTRAN is essentially a radio access network using wideband code division multiple access for user equipment units, UEs.
  • Fig 1 shows an exemplary network 100 like this, wherein the UTRAN comprises one or more Radio Network Controllers, RNCs, 101 and one or more Node B 102 (Radio Base Stations).
  • the one or more Node B 102 is connected to the RNC 101 through an interface 103.
  • the interface is denoted lub.
  • a controlling Radio Network Controller, CRNC, (not specifically shown) is the RNC responsible for the configuration of a particular Node B.
  • a User Equipment, UE, 106 accessing the system will send an access message to a Node B, which in turn will forward this message on to its CRNC.
  • the UTRAN connects to the Core Network 104 through an interface 105. This interface is denoted lu.
  • the UTRAN and the Core Network provide communication and control for a plurality of User Equipment.
  • E-DCH is used as the uplink transport channels providing much higher bandwidth for UEs in CELL_FACH state.
  • E-DCH resources There is a common pool of E-DCH resources (referred as "common E-DCH resources.") shared by the Enhanced Uplink CELL FACH users, while each user would get an E-RNTI when accessing the common E-DCH (Enhances Dedicated Channel) resources.
  • common E-DCH Enhanced Dedicated Channel
  • NBAP Node B Application Part
  • E-RNTI Enhanced Dedicated Channel Radio Network Transaction Identifier
  • RNC Radio Bearer Reconfiguration
  • RRC Radio Resource Control Protocol
  • E-DCH Enhanced Dedicated Channel
  • Base transceiver station Node B
  • E-RNTIs E-DCH Radio Network Transaction Identifiers
  • CRNC Controlling Radio Network Controller
  • E-RNTI is defined as 16bits. Thanks to the deployment of smart phones, the number of Sending of PHYSICAL SHARED CHANNEL RECONFIGURATION RESPONSE with hundreds and thousands of E-RNTI in the list would prior art solutions imply a high load on the system and a potential overload, e.g. NBAP congestion.
  • one examplified first solution is based on that Node B decides the E-RNTI ranges for the common E-DCH resources to use. Node B sends then in one example the E-RNTI ranges in NBAP message. In one example, Node B sends the E-RNTI ranges in NBAP message as new protocol information elements (lEs).
  • the ranges comprise for example each two values representing the start and end of the E-RNTI value for the common E-DCH resources.
  • the E-RNTI ranges are in one example defined as for example as Common E- DCH E-RNTI Start, and Common E-DCH E-RNTI End, said two values indicating E-RNTIs between these two values can be used for common E-DCH E-RNTI.
  • the new IE is defined in the existing NBAP message PHYSICAL SHARED CHANNEL RECONFIGURATION RESPONSE.
  • Node B decides one E-RNTI range.
  • Node B decides a plurality of E-RNTI ranges. Accordingly, a list comprising one or a plurality of E-RNTI ranges may be introduced, for use by the CRNC. Alternatively, the list is introduced in other NBAP common message, or new message. Instead, or in addition thereto the list is on one example introduced in lub user plan frames.
  • a method 200 performed at a base transceiver station (node B) for setting up common Enhanced Dedicated Channel (E-DCH) resource comprises in one example
  • configuring 205 the common E-DCH resource comprising deciding at least one E-DCH Radio Network Transaction Identified (E-RNTI) range for the common E-DCH resources to use and
  • CRNC Radio Network Controller
  • the at least one range comprises two values representing the start and end of the E-RNTI value for the common E-DCH resources.
  • a method 300 performed at a controlling Radio Network Controller (CRNC) for setting up common Enhanced Dedicated Channel (E-DCH) resources comprises in one example receiving 315 at least one E-DCH Radio Network Transaction Identifier (E-RNTI) range for the common E-DCH resources provided by a base transceiver station (Node B) and - allocating 320 the E-RNTI within the at least one E-RNTI range provided by Node B for the common E-DCH users.
  • E-RNTI Radio Network Transaction Identifier
  • Table 1 illustrates an example wherein the new IE is defined in the existing NBAP message PHYSICAL SHARED CHANNEL RECONFIGURATION RESPONSE.
  • Table 1 illustrates an example of Common E-DCH System Information Response included in PHYSICAL SHARED CHANNEL RECONFIGURATION RESPONSE. It provides information for E-DCH configured for UE in Cell FACH and Idle state that have been established or modified.
  • Table 2 illustrates an example of E-RNTI Range IE providing the range of E-RNTIs which can be allocated by CRNC when sent by Node B; it provides the range of E-RNTI used by CRNC when sent by CRNC.
  • E-RNTI Range is defined with Common E-DCH Start and Common E-DCH End
  • the E-RNTI Range IE provides the list of ranges of E- RNTIs which can be allocated by CRNC when sent by Node B; it provides the range of E-RNTI used by CRNC when sent by CRNC.
  • E-RNTI Range is defined with a list of ranges
  • one examplified second solution is based on that CRNC pre-decides the E-RNTI ranges for the common E-DCH resources.
  • the CRNC is arranged to send the E-RNTI ranges in NBAP message as new IE. This message indicates to Node B that the E-RNTI within the range will be used for common E-DCH E-RNTI by CRNC.
  • Node B has a few options for the handling. In a first option, Node B is arranged to do nothing, indicating the range is accepted and understood. In a second option, Node B is arranged to actively confirm to the CRNC indicating that the range is received and understood. In a third option Node B is arranged to propose a new range.
  • the new IE is defined in the existing NBAP message PHYSICAL SHARED
  • a method performed at a controlling Radio Network Controller (CRNC) for setting up common Enhanced Dedicated Channel (E-DCH) resources comprises in one example configuring 425 the common E-DCH resources comprising pre-deciding at least one E- DCH Radio Network Transaction Identifier (E-RNTI) range for the common E-DCH resources to use and
  • CRNC Radio Network Controller
  • E-RNTI E-RNTI
  • the method also involves receiving 435, 440 at the CRNC a response from Node B to the sent range of the E-RNTI for the common E-DCH resources.
  • the response 440 is a confirmation message.
  • the response 435 comprises at least one proposed new range.
  • no response is received.
  • a method performed at a base transceiver station (node B) for setting up common Enhanced Dedicated Channel (E-DCH) resources comprises in one example receiving 550 at least one pre-decided E-DCH Radio Network Transaction Identifier (E- RNTI) range for the common E-DCH resources provided by a controlling Radio Network Controller (CRNC).
  • E- RNTI Radio Network Transaction Identifier
  • the method comprises the steps of evaluating 555 the received pre-decided range.
  • Node B transmits in one example a confirmation response 560.
  • the confirmation response may be based on the evaluation.
  • Node B forms 565 in one example at least one proposed new range based on the evaluation, and transmits 570 the proposed at least one new range to the CRNC.
  • resource allocation D (8, 12, 16, Value 120
  • a base transceiver station (Node B) 600 comprises radio circuitry 680 to communicate with served User Equipment (Ues), communication circuitry 681 to communicate with other radio network and core network nodes, memory 683 to store information, and a processing unit 682.
  • the memory 681 is configured to store information about served UEs, as well as information about neighbor cells.
  • the processor 682 is arranged to configure common Enhanced dedicated channel (E-DCH) resource comprising deciding E-DCH Radio Network Transaction Identifier (E-RNTI) ranges for the common E-DCH resources to use.
  • E-RNTI E-DCH Radio Network Transaction Identifier
  • the memory is arranged to store information about the decided E-RNTI ranges for the common E-DCH resources to use.
  • the communication circuitry 681 is arranged to send at least one range of the E-RNTI for the common E-DCH resources to a controlling Radio Network Controller (CRNC).
  • CRNC Radio Network Controller
  • the communication circuitry 681 is arranged to receive 550 at least one pre-decided range of the E-RNTI for the common E-DCH resources provided by CRNC.
  • the at least one pre-decided range of the E-RNTI for the common E-DCH resources is stored in the memory 683.
  • processor 682 is arranged to evaluate the received pre-decided at least one range.
  • the communication circuitry 681 is arranged to transmit a confirmation response 560 to the CRNC. The confirmation response may be based on the evaluation.
  • the processor 682 is arranged to form at least one proposed new range based on the evaluation, and the communication circuitry is arranged to transmit the proposed new range to the CRNC.
  • a controlling Radio Network Controller (CRNC) 700 comprises communication circuitry 791 to communicate with other radio network and core network nodes, memory 793 to store information, and a processing unit 792.
  • the communication circuitry 791 is arranged to receive at least one range of E-DCH Radio Network Transaction Identifier (E-RNTI) for a common Enhanced Dedicated Channel) E-DCH resources provided by a base transceiver station (Node B).
  • the processor 792 is arranged to allocate the E-RNTI within the range provided by Node B for the common E-DCH users.
  • the processor 792 is arranged to configure the common E-DCH resource.
  • the configuration comprises pre-deciding the E-RNTI ranges for the common E-DCH resources to use.
  • the communication circuitry 791 is arranged to send at least one range of the E-RNTI for the common E-DCH resources to the CRNC.
  • the communication circuitry 791 is also arranged to receive a response from Node B to the sent at least one range of the E-RNTI for the common E-DCH resources.
  • the response is a confirmation message.
  • the response comprises at least one proposed new range.
  • RNSAP Radio Network Subsystem Application Part l ur The interface between RNCs in the same network l ub The interface between the RNC and the

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/SE2013/051177 2012-10-08 2013-10-07 Nodes, systems and methods in a cellular network Ceased WO2014058379A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US14/432,274 US20150230227A1 (en) 2012-10-08 2013-10-07 Nodes, systems and methods in a cellular network
EP13780424.1A EP2904868B1 (en) 2012-10-08 2013-10-07 Nodes, systems and methods in a cellular network
MX2015004216A MX339627B (es) 2012-10-08 2013-10-07 Nodos, sistemas y metodos en una red celular.
JP2015535612A JP6096305B2 (ja) 2012-10-08 2013-10-07 セルラーネットワークにおけるノード、システム、および方法
IN1918DEN2015 IN2015DN01918A (enExample) 2012-10-08 2013-10-07

Applications Claiming Priority (2)

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US201261710954P 2012-10-08 2012-10-08
US61/710,954 2012-10-08

Publications (1)

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WO2014058379A1 true WO2014058379A1 (en) 2014-04-17

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US (1) US20150230227A1 (enExample)
EP (1) EP2904868B1 (enExample)
JP (1) JP6096305B2 (enExample)
IN (1) IN2015DN01918A (enExample)
MX (1) MX339627B (enExample)
WO (1) WO2014058379A1 (enExample)

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