WO2014044177A1 - Procédé et dispositif de notification et de réception d'informations d'attribution de créneau temporel - Google Patents

Procédé et dispositif de notification et de réception d'informations d'attribution de créneau temporel Download PDF

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Publication number
WO2014044177A1
WO2014044177A1 PCT/CN2013/083718 CN2013083718W WO2014044177A1 WO 2014044177 A1 WO2014044177 A1 WO 2014044177A1 CN 2013083718 W CN2013083718 W CN 2013083718W WO 2014044177 A1 WO2014044177 A1 WO 2014044177A1
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Prior art keywords
udich
configuration information
access node
local access
sent
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PCT/CN2013/083718
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English (en)
Chinese (zh)
Inventor
潘学明
沈祖康
徐婧
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电信科学技术研究院
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Publication of WO2014044177A1 publication Critical patent/WO2014044177A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames

Definitions

  • the invention provides a method for notifying and receiving time slot allocation information.
  • the application is filed on September 18, 2012, and the application number is 201210348297.1.
  • the invention name is "a method for notification and reception of time slot allocation information".
  • the present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for notifying and receiving time slot allocation information. Background technique
  • the Time Division Duplex (TDD) mode has received more and more attention in the context of the increasing bandwidth demand for broadband mobile communications.
  • the uplink and downlink transmissions use the same frequency resource, and the uplink/downlink signals are transmitted on different time slots.
  • TD-SCDMA Time Division Synchronous CDMA
  • LTE-LTE Long Term Evolution
  • uplink and downlink time slots The division is static or semi-static. The usual practice is to determine the proportion of uplink and downlink time slots according to the type of cell and the approximate proportion of services in the network planning process and keep unchanged.
  • One-way link-downlink (UL-DL) subframe allocation in which one way the base station uses the channel or signal of the physical layer to send information indicating the configuration of the TDD uplink and downlink subframes to the terminal, which can support the fastest 10ms changes the uplink and downlink allocation in a radio frame. For example, as shown in FIG. 2, the base station sends the uplink and downlink subframe allocation information in the current or next radio frame to the terminal on a specific physical channel in the subframe 0 in each radio frame.
  • the types of small cells are mainly divided into two types: small cells that can work independently and small cells that cannot work independently.
  • the small cell that works independently has the complete function of a cell in the existing system, and supports the terminal in the small.
  • the cell accesses and camps, and the terminal needs to go through the handover process when moving from the Macro base station to the small cell coverage.
  • the non-independent small cell does not have the complete cell function in the existing system and does not support the access and residency of the terminal.
  • a terminal that moves to a coverage of a non-independent small cell does not go through the existing handover process, but maintains its control plane connection (system broadcast, Radio Resource Control (RRC) signaling, etc.).
  • RRC Radio Resource Control
  • the non-independent small cell does not need to send system information, etc., so that when there is no service demand, the signal transmission can be reduced or stopped, and the energy saving effect can be realized.
  • the non-independent small cell on/off and other operating states/parameters can be configured by the Macro Base Station.
  • flexible UL-DL subframe allocation should be supported in independent or non-independent small cells to adapt to service changes and improve system efficiency.
  • the prior art has not proposed a unified solution. Summary of the invention
  • the embodiment of the present invention provides a method and a device for notifying and receiving time slot allocation information, which are used to establish an uplink and downlink configuration indication channel UDICH between a local access node and a UE in a time division duplex TDD system. Indicates the uplink and downlink subframe allocation information.
  • a method for notifying a time slot allocation information includes: determining, by a local access node, configuration information of an uplink and downlink configuration indication channel UDICH; wherein the UDICH is used for transmitting time slot allocation information; The configuration information is sent to the user equipment UE, and other network side nodes; the local access node sends time slot allocation information to the UE through the UDICH.
  • Another method for notifying the time slot allocation information includes: the macro base station Macro e B determines the configuration information of the uplink and downlink configuration indication channel UDICH of each local access node to which it is connected and sends the configuration information to the corresponding local connection. Incoming node; the Macro eNB sends the configuration information of the local access node connected by the UE to the UE.
  • the method for receiving time slot allocation information includes: receiving, by the user equipment UE, configuration information of an uplink and downlink configuration indication channel UDICH sent by the network side; the UE receiving, by using the configuration information, the local access node to send the UDICH Time slot allocation information.
  • a local access node device includes: an uplink and downlink configuration indication channel UDICH configuration unit, configured to determine configuration information of an uplink and downlink configuration indication channel UDICH; wherein the UDICH is used to transmit a time slot allocation signal And a configuration information sending unit, configured to send the configuration information to the user equipment UE, and other network side nodes; and a time slot allocation sending unit, configured to send time slot allocation information to the UE by using the UDICH.
  • the macro base station includes: an uplink and downlink configuration indication channel UDICH configuration unit, configured to determine configuration information of a UDICH of each local access node connected by the macro base station, and send the configuration information to the corresponding local access node; And sending, by the unit, the configuration information of the local access node connected by the UE to the UE.
  • UDICH configuration unit configured to determine configuration information of a UDICH of each local access node connected by the macro base station, and send the configuration information to the corresponding local access node; And sending, by the unit, the configuration information of the local access node connected by the UE to the UE.
  • the user equipment UE includes: a configuration information receiving unit, configured to receive configuration information of an uplink and downlink configuration indication channel UDICH sent by the network side, and a time slot allocation receiving unit, configured to receive, by the local access node, the UDICH Time slot allocation information.
  • the local access node determines configuration information of the uplink and downlink configuration indication channel UDICH, where the UDICH is used to transmit time slot allocation information; and the local access node sends the configuration information to the user equipment UE.
  • the other network side node; or, the macro base station Macro e B determines the configuration information of the uplink and downlink configuration indication channel UDICH of each local access node to which it is connected and sends the configuration information to the corresponding local access node; the Macro eNB connects the UE The configuration information of the local access node is sent to the UE.
  • the solution can be used for the local access node working independently or for the local access node that cannot work independently, and provides the interaction mode of the UDICH configuration information between the network side and the UE, in the local access node and
  • the uplink and downlink configuration indication channel UDICH is established between the UEs, and the uplink and downlink subframe allocation information is dynamically indicated.
  • Figure 1 shows the frame structure in the existing LTE TDD system
  • FIG. 3 is a schematic flowchart of a notification process of time slot allocation information according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a notification process of time slot allocation information according to a specific embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a local access node according to an embodiment of the present invention. detailed description
  • the embodiment of the present invention provides a method and a device for notifying and receiving time slot allocation information, which are used to provide an interaction mode of UDICH configuration information between a network side and a UE in a communication system using a time division duplex TDD system.
  • An uplink and downlink configuration indication channel UDICH is established between the local access node and the UE to dynamically indicate uplink and downlink time slot allocation.
  • a method for notifying time slot allocation information includes:
  • the local access node determines configuration information of an uplink and downlink configuration indication channel UDICH, where the UDICH is used to transmit time slot allocation information.
  • the local access node sends the configuration information to the user equipment UE, and other network side nodes.
  • the local access node sends time slot allocation information to the UE by using the UDICH.
  • the local access node determines configuration information of the uplink and downlink configuration indication channel UDICH according to the indication information sent by the macro base station Macro eNB.
  • the local access node sends the configuration information to the user equipment UE, including:
  • the local access node carries the configuration information to the user equipment UE in the cell feature signal;
  • the local access node sends the configuration information to the user equipment UE through a system broadcast;
  • the local access node carries the configuration information to the user equipment UE in the high layer RRC signaling sent to the UE; or
  • the local access node sends the configuration information to the user equipment UE through the medium access control control element MAC CE or the physical downlink control channel PDCCH.
  • the physical resource occupied by the UDICH of the local access node is different from the physical resource occupied by the UDICH of the neighboring node of the local access node.
  • the macro eNB determines the configuration information of the uplink and downlink configuration indication channel UDICH of each local access node to which it is connected and sends the configuration information to the corresponding local access node;
  • the Macro eNB sends the configuration information of the local access node to which the UE is connected to the UE.
  • the macro eNB sends the configuration information of the local access node connected to the UE to the UE, including:
  • the macro eNB carries the configuration information of the local access node connected to the UE in the high layer RRC signaling sent to the UE; or
  • the Macro eNB controls the element MAC CE or the physical downlink control channel PDCCH through the medium access control.
  • the configuration information of the local access node connected by the UE is sent to the UE.
  • the uplink and downlink configuration of the neighboring local access node determined by the Macro eNB indicates that the physical resources occupied by the channel UDICH are different.
  • the user equipment UE receives the configuration information of the uplink and downlink configuration indication channel UDICH sent by the network side;
  • the UE receives the time slot allocation information sent by the local access node on the UDICH according to the configuration information.
  • the user equipment UE receives the configuration information of the uplink and downlink configuration indication channel UDICH sent by the network side, and includes:
  • the user equipment UE receives the configuration information of the uplink and downlink configuration indication channel UDICH sent by the macro eNB; or, the user equipment UE receives the configuration information of the uplink and downlink configuration indication channel UDICH sent by the local access node.
  • the user equipment UE receives the configuration information of the uplink and downlink configuration indication channel UDICH sent by the macro eNB, and includes:
  • the UE receives the configuration information of the UDICH carried by the Macro eNB in the high layer RRC signaling sent to the UE; or The UE receives configuration information of the UDICH transmitted by the Macro e B through the medium access control control element MAC CE or the physical downlink control channel PDCCH.
  • the user equipment UE receives the configuration information of the uplink and downlink configuration indication channel UDICH sent by the local access node, including:
  • the UE receives configuration information of the UDICH sent by the local access node through the medium access control control element MAC CE or the physical downlink control channel PDCCH.
  • Embodiment 1 The network side determines the physical resources used by the UDICH in the small cell, and sends related configuration information to the terminal, and the terminal receives and processes the time slot allocation information on the corresponding physical resource according to the configuration information.
  • the configuration information herein includes one or more of the following information: whether the information of the UDICH is transmitted in the cell, the information of the physical resource occupied by the UDICH in the cell, and the like.
  • the physical resources used by the UDICH determined by the network side may be physical resources specified by the protocol. Specifically, the UDICH occupies a set of Resource Element (RE) resources on the physical layer, and other physical channels/signals (such as physical downlinks) multiplexed with the same physical resource block (PRB); The physical downlink shared channel (PDSCH) or the evolved physical downlink control channel (ePDCCH) needs to be mapped to the unoccupied RE resource. Therefore, in the subframe in which the UDICH is sent or not sent, The resource mapping of other channels/signals is different.
  • the implementation in the independent small cell scenario is as follows:
  • the small cell behavior includes the following steps:
  • the small cell enables the dynamic uplink and downlink reconfiguration function, and determines the physical resource used for sending the UDICH, and can include the following two methods:
  • the small cell determines the physical resource used to send the UDICH.
  • the small cell determines the physical resource used to send the UDICH according to the indication of the Macro cell.
  • the indication information can be transmitted using an existing inter-base station network interface (e.g., X2 or S1) or an air interface between the base stations.
  • the small cell may notify part or all of the UDICH-related configuration information (described below) to other cells (including other small cells) through an existing inter-base station network interface (for example, an X2 or S1 interface) or an inter-base station air interface. Or Macro cell).
  • an existing inter-base station network interface for example, an X2 or S1 interface
  • an inter-base station air interface for example, an X2 or S1 interface
  • an inter-base station air interface for example, an X2 or S1 interface
  • Macro cell Macro cell
  • the small cell determines the physical resource used by the local cell to send the UDICH to a physical resource different from the neighboring cell. Thereby reducing the interference between cells. 5403.
  • the small cell sends the configuration information to the terminal, where the configuration information includes one or more of the following information: whether the information of the UDICH is sent in the cell, the information about the physical resource occupied by the UDICH in the cell, and the like; where the physical resource information is further
  • the method may include: sending location information of the RE resource of the UDICH in the downlink subframe, transmitting a time repetition period of the UDICH, and subframe position information.
  • the configuration information is sent to the terminal in one of the following ways:
  • the small cell cell feature signal carries the foregoing configuration information, for example, using some specific synchronization sequence to identify whether the configuration information of the UDICH is sent in the cell (ie, whether dynamic TDD UL-DL reconfiguration is supported);
  • the small cell sends the configuration information in the system broadcast, which may include one of the following two methods: carrying the configuration information in a system information block (SIB), or in a master information block (Master Information Block) , MIB) carries the above configuration information;
  • SIB system information block
  • MIB Master Information Block
  • the small cell carries the foregoing configuration information, such as RRC signaling, through the high-level signaling specific to the terminal;
  • the MAC CE or PDCCH control signaling sent by the small cell to the terminal notifies the configuration information.
  • S404 The small cell sends the UDICH on the physical resource corresponding to the configuration information.
  • the terminal learns the configuration information of the UDICH in one of the following ways:
  • MIB MIB or SIB
  • the UDICH is received and processed according to the configured configuration information of the UDICH, and the UL-DL subframe configuration currently used by the small cell, that is, the slot allocation information is obtained.
  • the configuration information of the UDICH sent by the small cell is received through an inter-base station network interface or an air interface.
  • the configuration information of the UDICH is sent to the small celL through the inter-base station network interface or the air interface.
  • Embodiment 2 Small cell scene that does not work independently.
  • the small cell enables the dynamic uplink and downlink reconfiguration function, and determines the physical resource used for sending the UDICH according to the indication information sent by the macro cell base station through the wired network interface or the air interface.
  • the small cell sends the UDICH on the determined physical resource.
  • Terminal behavior The terminal accesses the macro cell and its controlled small celL
  • the terminal obtains the configuration information of the UDICH sent by the small cell by using the control signaling sent by the macro cell, which may include the following methods:
  • the UDICH is received and processed according to the configured configuration information of the UDICH, and the UL-DL subframe configuration currently used by the small cell is known.
  • the Macro base station can determine the physical resource for sending the UDICH in each small cell according to the information about the interference condition between the known small cells. For example, if the interference between two small cells is large, the configuration uses different physical resources to send the UDICH, and vice versa.
  • the configuration information of the UDICH in the small cell is sent to the terminal in the small cell, and the method includes the following:
  • the configuration information of the "transmission of the physical resources occupied by the UDICH" may be used to transmit different physical resource set numbers that can be used to transmit the UDICH, and the above signaling method carries the number information indicating the physical resources.
  • a local access node device includes:
  • a UDICH configuration unit 51 configured to determine configuration information of an uplink and downlink configuration indication channel UDICH, where the UDICH is used to transmit time slot allocation information;
  • the configuration information sending unit 52 is configured to send the configuration information to the user equipment UE, and other network side slot allocation allocation unit 53, configured to send time slot allocation information to the UE by using the UDICH.
  • the UDICH configuration unit 51 is specifically configured to determine configuration information of the uplink and downlink configuration indication channel UDICH according to the indication information sent by the macro base station Macro e B.
  • the configuration information sending unit 52 is specifically configured to:
  • An uplink and downlink configuration indication channel UDICH configuration unit configured to determine configuration information of a UDICH of each local access node connected by the macro base station, and send the configuration information to the corresponding local access node;
  • a configuration information sending unit configured to send the configuration information of the local access node connected by the UE to the UE.
  • the configuration information sending unit is specifically configured to:
  • the configuration information of the local access node to which the UE is connected is sent to the UE through the medium access control control element MAC CE or the physical downlink control channel PDCCH.
  • a user equipment UE is provided by the embodiment of the present invention, and the UE includes:
  • a configuration information receiving unit configured to receive configuration information of an uplink and downlink configuration indication channel UDICH sent by the network side
  • a time slot allocation receiving unit configured to receive time slot allocation information sent by the local access node on the UDICH.
  • the configuration information receiving unit is specifically configured to:
  • the configuration information receiving unit is configured to: when receiving configuration information of the uplink and downlink configuration indication channel UDICH sent by the Macro eNB, specifically:
  • the configuration information receiving unit is configured to: when receiving configuration information of the uplink and downlink configuration indication channel UDICH sent by the local access node, specifically:
  • the local access node device includes a transceiver and at least one processor coupled to the transceiver, wherein: the processor is configured to determine configuration information of the UDICH; wherein the UDICH is configured to transmit time slot allocation information; The transceiver is configured to transmit the configuration information to the UE, and other network side nodes; and send the slot allocation information to the UE through the UDICH.
  • the processor is configured to determine configuration information of the UDICH according to the indication information sent by the macro base station.
  • the transceiver is configured to: carry the configuration information to the UE in the cell feature signal; or send the configuration information to the UE by using a system broadcast; or, in a higher layer RRC signaling sent to the UE
  • the configuration information is sent to the UE; or the configuration information is sent to the UE by using a MAC CE or a PDCCH.
  • the macro base station includes a transceiver, and at least one processor coupled to the transceiver, wherein: the processor is configured to determine configuration information of a UDICH of each local access node to which the macro base station is connected; the transceiver is And configured to send the configuration information of the UDICH to the corresponding local access node; and send the configuration information of the local access node to which the UE is connected to the UE.
  • the transceiver is configured to: carry the configuration information of the local access node connected to the UE in the high-layer RRC signaling sent to the UE; or connect the UE by using a MAC CE or a PDCCH.
  • the configuration information of the local access node is sent to the UE.
  • the terminal includes a transceiver, and at least one processor coupled to the transceiver, wherein:
  • the transceiver is configured to receive configuration information of the UDICH transmitted by the network side; and receive time slot allocation information sent by the local access node on the UDICH.
  • the transceiver is configured to: receive configuration information of the UDICH sent by the Macro eNB; or receive configuration information of the UDICH sent by the local access node.
  • the transceiver when receiving the configuration information of the UDICH sent by the macro eNB, is configured to: receive configuration information of the UDICH carried by the macro eNB in the high layer RRC signaling sent to the UE; or, receive
  • the receiving when receiving the configuration information of the UDICH sent by the local access node, is configured to: receive configuration information of the UDICH carried by the local access node in the cell feature signal; or receive the local access node The configuration information of the UDICH sent by the system broadcast; or receiving the configuration information of the UDICH carried by the local access node in the high-layer RRC signaling sent to the UE; or receiving the local access node by using the MAC CE or
  • the embodiment of the present invention provides a method and a device for notifying and receiving time slot allocation information, which are used to provide an interaction mode of UDICH configuration information between a network side and a UE in a TDD standard communication system.
  • embodiments of the present invention can be provided as a method, system, or computer program.
  • Product may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware.
  • present invention is in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) in which computer usable program code is embodied.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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

Abstract

L'invention porte sur un procédé et un dispositif de notification et de réception d'informations d'attribution de créneau temporel, utilisés dans un système de communication utilisant un mode de duplexage par répartition temporelle (TDD) pour établir un canal d'indication de configuration de liaison montante-liaison descendante (UDICH) entre un nœud d'accès local et un UE afin d'indiquer dynamiquement une attribution de créneau temporel de liaison montante-liaison descendante. Le procédé comprend les opérations suivantes : un nœud d'accès local détermine les informations de configuration d'un UDICH, l'UDICH étant utilisé pour transmettre des informations d'attribution de créneau temporel ; le nœud d'accès local transmet les informations de configuration à un UE et à d'autres nœuds côté réseau ; et le nœud d'accès local transmet les informations d'attribution de créneau temporel à l'UE par l'UDICH.
PCT/CN2013/083718 2012-09-18 2013-09-18 Procédé et dispositif de notification et de réception d'informations d'attribution de créneau temporel WO2014044177A1 (fr)

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CN201210348297.1A CN103687007B (zh) 2012-09-18 2012-09-18 一种时隙分配信息的通知、接收的方法和装置
CN201210348297.1 2012-09-18

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