CN101932120B - Connection establishment method and device for relay node and network node - Google Patents
Connection establishment method and device for relay node and network node Download PDFInfo
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- CN101932120B CN101932120B CN2009101467369A CN200910146736A CN101932120B CN 101932120 B CN101932120 B CN 101932120B CN 2009101467369 A CN2009101467369 A CN 2009101467369A CN 200910146736 A CN200910146736 A CN 200910146736A CN 101932120 B CN101932120 B CN 101932120B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
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Abstract
The invention discloses a connection establishment method and a connection establishment device for a relay node and a network node. The method comprises the following steps of: sending connection establishment request information which comprises a node type and/or a connection type of the connection establishment request information to a selected network node to be connected; and receiving connection establishment response information sent by the network node to be connected. By adopting the technical scheme, the relay node can automatically establish a connection with a home base station (HBTS), establish a wireless X2 interface, and directly interact information with other network nodes, so that the time delay of the information interaction is reduced; and the network is capable of self-configuration and self-optimization, so that the performance of the network is improved.
Description
Technical field
The present invention relates to mobile communication technology, particularly a kind of via node and network node is connected method for building up and device.
Background technology
In order to solve the covering problem of base station, need usually to adopt via node (RN, Relay Node) that the wireless communication signals between base station (eNB) and the travelling carriage (MS, Mobile Station) is strengthened.Communicate by Radio Link between via node and the base station.For providing serving base station, via node is called as home base station.Can lay one or more via nodes below the base station.Interactive information between via node and other network node needs to transmit by its home base station (Donor-eNB).
In the prior art, operator is that the via node that lays is determined home base station, so that via node successfully is connected to its home base station, satisfies the particular demands that certain determines home base station, such as: expansion covers, or increases cell edge throughput etc.; And owing to used the physical orientation antenna, can make home base station relatively good to the link-quality of via node.But, under some scene, such as: via node in emergency circumstances or the via node that newly powers on or mobile via node, possibly can't use the physical orientation antenna to dispose its home base station.At existing technology, the present inventor finds that its adjacent network node might be common eNB, via node, H (e) NB, dissimilar nodes such as Pico eNB.And different node types and/or different carrier policy and/or different network conditions, may cause different home base station selection strategies, that is to say that some base station can be used as the home base station of via node, some base station cannot be as the home base station of via node.Therefore, prior art is gone back the mechanism that neither one is avoided via node wrong choice home base station at present.
The inventor is in realizing process of the present invention, find that there are the following problems in the prior art: the home base station that via node may configuration error, what home base station can't be judged the request connection is UE or via node, thereby can be wrong via node be used as UE be configured, and the adjacent base station of the adjacent via node with other of via node or the home base station problem that causes time delay to be grown when carrying out information interaction.
Summary of the invention
What the embodiment of the invention provided a kind of via node and network node is connected method for building up and device thereof, avoid the home base station of trunk node selection mistake, what home base station can be judged the request connection is UE or via node, the efficient that connects with home base station that improves via node, and reduce time delay when carrying out information interaction between via node and the network node.
For solving the problems of the technologies described above, the present invention is that embodiment provides the be connected method for building up of a kind of via node with network node, and described method comprises:
Send connection to the network node of selecting to be connected and set up request message, described connection is set up request message and is comprised: the type of the node type of self and/or connection;
Receive the connection establishment response message that described network node to be connected sends.
The embodiment of the invention also provides the be connected method for building up of a kind of via node with network node, and described method comprises:
Network node receives the connection of the node transmission of access network and sets up request message, and described connection is set up request message and comprised: the node type of described node and/or the type of connection;
Network node judges according to the node type of described node and/or the type of connection whether described node is via node; If then send connection establishment response message to described node.
Accordingly, the embodiment of the invention also provides the be connected apparatus for establishing of a kind of via node with network node, it is characterized in that described device comprises:
Set up request transmitting unit, be used for sending to connect to the network node of selecting to be connected setting up request message, described connection is set up request message and is comprised: described self node type and/or the type of connection;
Set up the response receiving element, be used for receiving the connection establishment response message that described network node to be connected sends.
Accordingly, the embodiment of the invention also provides the be connected apparatus for establishing of a kind of via node with network node, and described device comprises:
Set up the request receiving element, request message is set up in the connection that is used for the node transmission of reception access network, and described connection is set up request message and comprised: the type of connection and/or the node type of described node;
Determining unit is used for determining according to the type of described connection and/or the node type of described node whether described node is via node, if then send the notice that described node is via node;
Set up the response transmitting element, be used for when the described node that receives the determining unit transmission is the notice of via node, sending connection establishment response message to described node.
By above-mentioned implementation as can be known, in the embodiment of the invention, the via node of new access network is set up request message by sending to connect to the network node of selecting to be connected, described connection is set up request message and can be comprised: the node type of self node and/or the type of connection, and receiving the connection establishment response message that described network node to be connected sends.That is to say, because can connecting and/or set up wireless X2 interface according to demand, carrier policy and the network condition of self and network node in the operational network, the via node of new access network is connected, thereby the time delay when having reduced the via node of new access network and the network node in the network and carrying out information interaction, not only improve the self-configuring ability of the via node of new access network, the ability of self-optimizing, but also improved the performance of network.
Description of drawings
A kind of via node of providing in embodiment of the invention flow chart that is connected method for building up with network node is provided Fig. 1;
A kind of via node of providing in the embodiment of the invention 2 particular flow sheet that is connected method for building up with network node is provided Fig. 2;
A kind of via node of providing in the embodiment of the invention 3 particular flow sheet that is connected method for building up with network node is provided Fig. 3;
A kind of via node of providing in the embodiment of the invention 4 particular flow sheet that is connected method for building up with network node is provided Fig. 4;
A kind of via node of providing in the embodiment of the invention 5 particular flow sheet that is connected method for building up with network node is provided Fig. 5;
The flow chart of distributing radio resource between a kind of via node that provides in the embodiment of the invention is provided Fig. 6;
A kind of via node of providing in embodiment of the invention flow chart that is connected method for building up with network node is provided Fig. 7;
A kind of via node of providing in embodiment of the invention structural representation that is connected apparatus for establishing with network node is provided Fig. 8;
A kind of via node of providing in embodiment of the invention structural representation that is connected apparatus for establishing with network node is provided Fig. 9.
Embodiment
Below we will be by reference to the accompanying drawings, embodiment of the present invention are described in detail.
See also Fig. 1, a kind of via node of providing in embodiment of the invention flow chart that is connected method for building up with network node is provided, described method comprises:
Step 101: send connection to the network node of selecting to be connected and set up request message, described connection is set up request message and is comprised: the type of the node type of self and/or connection;
Wherein, described connection is set up request message and be can further include at least a in the following parameter: the wireless single frequency network backhaul configuration of general mobile identification number, maximum transmission power, position and multimedia broadcast multi-broadcasting business; But being not limited to this, can be other, and present embodiment is not restricted.
Step 102: receive the connection establishment response message that described network node to be connected sends.
Wherein, setting up the result when connection is successfully the time, and described connection establishment response message can also be included as residential quarter-Radio Network Temporary Identifier and the wireless uplink resource that via node distributes; Setting up the result when connection is successfully the time, and when described network node to be connected is home base station, described connection establishment response message can also comprise: the configuration parameter of wireless backhaul link, residential quarter-Radio Network Temporary Identifier (C-RNTI, cell-Radio Network Temporary Identifier) and the wireless uplink resource of distributing for via node; Wherein, the configuration parameter of described wireless backhaul link comprises: Physical Cell Identifier, Tracking Area Code, IP and the tabulation of shared public land mobile network, but be not limited to this, and can be other resources, present embodiment is not restricted.
Before step 101, described method can further include:
When knowing the node type of adjacent network node, then according to the network node types of required connection, the node type that reaches described adjacent network node selects a described adjacent network node that mates with the described required network node types that is connected as network node to be connected;
When not knowing the node type of adjacent network node, then according to the network node of required connection, reach s own situation and/or network condition and select a described adjacent network node as network node to be connected.
That is to say that the node of new access network judges whether to know the node type of adjacent network node, if then according to the node type of described adjacent network node or according to the network node types of required connection, select a network node to be connected; Otherwise, select a network node as network node to be connected according to s own situation and/or network condition.
Such as: when the node type of the adjacent network node that the via node that connects when needs is known does not match with the required network node types that is connected, when perhaps not knowing the node type of adjacent network node fully, this via node is according to the network node types of self required connection, never knows in the network node of node type to select a network node as network node to be connected at random.
Wherein, when not knowing the node type of adjacent network node:
The network node that connects when needs is the adjacent base station of via node or home base station, and then described connection is set up request message and also comprised: the home base station sign.
Described when not knowing the node type of adjacent network node, then select a described adjacent network node specifically to comprise as network node to be connected according to s own situation and/or the network condition of required connection:
When the network node to be connected according to s own situation and/or network condition selection is home base station, and when the network node of described required connection is home base station, then described connection establishment response message comprises: the node type of home base station, and/or the type of this connection is to connect with home base station;
When the network node to be connected according to s own situation and/or network condition selection is via node, and when the network node of described required connection is via node, then described connection establishment response message comprises: the node type of described via node, and/or the type of this connection is to set up wireless X2 interface;
When the network node types to be connected according to s own situation and/or network condition selection is the adjacent base station of home base station, and when the network node of described required connection is the adjacent base station of home base station, then described connection establishment response message comprises: the node type of the adjacent base station of described home base station, and/or the type of this connection is to set up wireless X2 interface.
When knowing the node type of adjacent network node:
The network node that connects when needs is home base station, and then described connection is set up in the request message: the type of connection is that via node and home base station connect;
The network node that connects when needs is via node, and then described connection is set up in the request message: the type of connection is that via node and another via node are set up X2 interface, and described connection is set up request message and comprised that also home base station identifies;
The network node that connects when needs is the adjacent base station of home base station, then described connection is set up in the request message: the type of connection is that the adjacent base station of via node and home base station is set up X2 interface, and described connection is set up request message and also comprised home base station sign.
Described connection establishment response message comprises: connect that to set up the result be successfully or failure, set up the result and fail if connect, described connection establishment response message also comprises the reason of failure.
Described home base station is specially: the home base station in the double bounce relay system; Perhaps, the home base station of multihop relay system; Perhaps, in the multihop relay system as the via node of home base station.
Before step 101, described method can further include:
When interface type that the node type of knowing adjacent network node and described adjacent network node are supported, then according to the network node types of required connection, and the node type of described adjacent network node selects one with the described required network node types coupling that is connected, and the described adjacent network node that the connection type of the described interface type of supporting and required foundation mates is as network node to be connected.
Such as, when interface type that the node type of knowing adjacent network node and described adjacent network node are supported, if the node type of the network node types of required connection and the described adjacent network node of knowing coupling, then during the connection type of the interface type of supporting when described adjacent network node and required foundation coupling, select described adjacent network node as network node to be connected; Otherwise described adjacent network node can not need be reselected as network node to be connected.
Need to prove that the described home base station in the present embodiment can be: the home base station in the double bounce relay system; Also can be, the home base station of multihop relay system, or as the via node of home base station.It is similar for the process that the process that connects with home base station in the multihop relay system and double bounce relay system and home base station connect, and specifically sees for details above-mentionedly, does not repeat them here.
Optionally, after step 102, for the access of via node, no matter be to connect with home base station or set up wireless X2 interface, all need the configuration parameter configuration backhaul link according to described back haul link.
Wherein, in above-described embodiment, describedly know the node type of adjacent network node or the interface type of support, specifically can be from the synchronizing channel of described network node, and/or broadcast channel, and/or know the node type of adjacent network node or the interface type that described adjacent network node is supported in the system message.
Preferably, described method can further include: add in advance in synchronizing channel, broadcast channel and/or the system message of described adjacent network node or the definition information bit, the node type that described information bit is used to refer to this network node is base station or via node or the interface type supported; Wherein, described via node comprises: Class1 via node and/or type 2 via nodes; And/or layer 1 via node, layer 2 relay node and/or layer 3 via node; Described interface comprises: Un interface, S1 interface and/or X2 interface, but be not limited to this.
That is to say that in embodiments of the present invention, at first, the node type of adding or define grid node mainly comprises, but is not limited to this:
1) via node, this via node can further be subdivided into dissimilar via nodes, such as Class1 via node, type 2 via nodes ..., perhaps the layer 1, layer 2, layer 3 via node etc. are because dissimilar relayings has represented different abilities and requirement;
2) ordinary base station;
3) other type;
Perhaps, add or define this network node and whether support via node to insert, perhaps clearly indicate the interface type of supporting access, such as support Un interface and/or Uu interface and/or S1 interface, and/or X2 interface etc., but be not limited to this.
Secondly, the type of the connection of definition request can be set up request message by connection, also can indicate in the RACH signaling or in dedicated radio resources control (RRC, Radio Resource Control) signaling;
Connect that to set up the node type that comprises in the request message can be UE, via node (via node can also further be subdivided into Class1 via node, type 2 via nodes ..., perhaps layer 1, layer 2, layer 3 via node etc.);
The type of its connection mainly comprises, but is not limited to this:
1) UE and home base station connect
2) via node and home base station connect;
3) another via node is set up wireless X2 interface in via node and the network; Wherein, this wireless X2 interface is the interface between the self-defining via node of the embodiment of the invention;
4) adjacent base station of via node and home base station is set up wireless X2 interface; Wherein, this wireless X2 interface is the interface between the self-defining via node of the embodiment of the invention;
5) other type.
That is to say, when network node receives that connecting foundation asks, and only comprise that wherein connection type is that via node and home base station are when connecting, network node just can know that the node type of the request of sending is via node, and the connection of need setting up is and being connected of home base station, thereby the node that makes network node can distinguish the request of sending is relaying rather than UE, sends connection establishment response message according to the processing to via node to via node.
For the ease of those skilled in the art's understanding, illustrate with concrete example below.
The present inventor finds in the existing technology that adjacent network node might be common eNB, via node, H (e) NB, dissimilar nodes such as Pico eNB.And different node types and/or different carrier policy and/or different network conditions, all may cause different home base station selection strategies, that is to say that some base station can be used as the home base station of via node, some base station cannot be as the home base station of via node.Be that prior art is gone back the mechanism that neither one is avoided via node wrong choice home base station at present.For this reason, the embodiment of the invention provides embodiment one:
Embodiment one
In the embodiment of the invention, can be in the base station and/or the synchronizing channel (SCH of via node, Synchronization Channel)/broadcast channel (BCH, Broadcast Channel) adds in the message or the definition information bit, also can be at the block of information (SIB1 of system message, System Information Block) adds in or the definition information bit, this information bit is used to refer to node type, as shown in table 1, it oneself is the base station that the base station can be indicated with the node type information of this node, it oneself is via node that the via node that has moved also can be indicated with this node type information, perhaps indicates whether to support via node to insert.
After adding this information bit, need the via node of access network to connect to ordinary base station request and home base station, perhaps set up wireless X2 interface to the via node request, perhaps set up wireless X2 interface etc. to the adjacent base station request of home base station.
Table 1
| Territory description, network node, synchronizing channel or the broadcast channel of the block type 1 of system information (SystemInformationBlockTypel field descriptions) |
| ...... |
| Node type (eNB type) |
Wherein, base station and/or the via node that has moved can be broadcasted node type separately, the mode of its broadcasting can be periodic triggers, it also can be Event triggered, trigger event can be for example to find network node by automatic adjacent section association (ANR, the Automatic Neighbor Relation) function of base station and/or the via node that moved.
The present inventor finds in the prior art, in order to allow via node be connected to its home base station, via node at first needs to play the part of into a UE, connects with home base station, such as the request of setting up connects with home base station by the Radio Resource control connection.But in the process of connecting, home base station may be via node as being a UE when receiving that request is set up in connection that via node sends, and then according to the logical process of UE, can't carry out via node to via node and dispose accordingly.For this situation, default service object in base station all is UE in the prior art, and therefore, present prior art also can't realize the access of via node.For this reason, the embodiment of the invention provides following embodiment:
Embodiment two
See also Fig. 2, a kind of via node of providing in the embodiment of the invention 2 particular flow sheet that is connected method for building up with network node is provided, in this embodiment, via node is example with the via node that newly powers on, but be not limited to this, this via node can be according to the node type of the adjacent network node that gets access to, and to the request that initiate the base station of selecting and home base station connects, detailed process comprises:
Step 201: the node type (such as the eNB type) of obtaining adjacent network node;
Such as, via node 2 obtains the node type of adjacent network node, and according to the node type of described adjacent network node, a selected home base station to be connected (such as the base station among the figure); Wherein, the mode of obtaining can be by receiving the node type of the adjacent network node that adjacent network node sends by system message, also can be in other way, and this example is not restricted;
Step 202: via node 2 sends to selected home base station to be connected and connects the request of foundation, this connection is set up in the request and comprised: the node type of this via node 2 is via nodes, and/or connect that to set up type be " connecting with home base station ", but be not limited to this, can comprise other parameter, present embodiment is not restricted yet;
Step 203: this home base station to be connected is to the via node feedback response message, and this response message can be to admit message (present embodiment is to be received to example), also can be refuse information, can also comprise the reason of refusal simultaneously; That is to say, if described home base station to be connected can be the connecting with home base station of this via node, then send to this via node and admit message; Otherwise, then send refuse information to this via node.
Step 204: via node 2 is after receiving the admittance response message, send configuration report to this home base station to be connected, and carry the customizing messages of oneself, following a kind of such as comprising at least: common user identification module information (USIM info, universal subscriber identity module), international mobile subscriber identity (as IMSI, International Mobile Subscriber Identity); Maximum transmission power (Max Tx Power); Position (location); Multimedia broadcast multi-broadcasting business single frequency network backhaul configuration (MBSFN backhaul configuration, Multimedia Broadcast multicast service SingleFrequency Network backhaul configuration) etc., but be not limited to this, can also comprise other information, present embodiment is not restricted;
Step 205: this home base station to be connected is to via node 2 feedback configuration information, such as, Physical Cell Identifier (PCI, Physical Cell Identify), Tracking Area Code (TAC, Tracking Area Code), Internet protocol (IP, Internet Protocol), sharing of common land mobile communication network tabulation (SharingPLMN List, Sharing Public Land Mobile Network List) etc., this moment, this home base station to be connected was used as a user to via node 2, for the user distributes C-RNTI and wireless uplink Radio Resource.
Certainly, for the implementation procedure of step 202 and step 203, also can realize based on existing Random Access Channel (RACH, Random Access Channel) signaling and Radio Resource control (RRC, RadioResource Control) signaling; Each parameter of step 204 and step 205, also can with step 202 and step 203 in transmission of parameter.
Embodiment three
Consult Fig. 3, be connected method for building up signaling process figure for a kind of via node of providing in the embodiment of the invention 3 and network node, in this embodiment, if via node (such as via node among the figure 2) can't be known the node type of adjacent node, as not receiving the broadcast message that comprises node type that adjacent node sends, the request that can directly connect to base station initiation and home base station, concrete process comprises:
Step 301: when network node, the demand of self and the network state that a via node (such as via node 2) is selected as required, select a home base station to be connected (such as the eNB among the figure) at random;
Step 302: this via node 2 sends to this home base station to be connected and connects the request of foundation, and the node type that comprises self in the request is set up in this connection, and this node type is via node here;
Step 303: this home base station to be connected is admitted message to the via node feedback, and the type that comprises connection in this admittance message is to connect with home base station to be connected, and the node type of oneself is the base station;
Certainly, in this step, this home base station to be connected also can comprise in this refuse information being home base station of configuration of this via node 2 to via node 2 feedback refuse information, or the node type of oneself is the base station, as is via node;
That is to say, if this home base station to be connected is the base station, and satisfied admittance condition, then can admit message to via node 2 feedbacks; If this home base station to be connected is via node, or do not satisfy the admittance condition, then to via node feedback refuse information;
Step 304: via node 2 sends configuration report to this home base station to be connected, carry the customizing messages of oneself in this configuration report, this customizing messages can comprise at least a: USIM info (as IMSI etc.), Max Tx Power, location, MB SFN backhaul configuration etc.;
Step 305: this home base station to be connected is to via node 2 feedback configuration information, this configuration information can comprise at least a: PCI, TAC, IP, sharing PLMN list etc., at this moment, this home base station to be connected is used as a user to via node, and distributes C-RNTI and wireless uplink Radio Resource for this user.
Certainly, in this embodiment, for the implementation procedure of step 302 and step 303, also can realize based on existing RACH signaling and RRC signaling; Each parameter in step 304 and the step 305, also can with step 302 and step 303 in transmission of parameter.
Hence one can see that, this embodiment 1, embodiment 2 be with embodiment 3 in senior evolution system (LTEA, Long Term Evolution-Advanced) double bounce relay system, via node is initiated the request that connects with home base station to the base station; The implementation procedure of these two embodiment also can be applied to multihop relay system, and in multihop relay system, a via node can become the home base station of other via node.In order to form multihop relay system, via node can be according to the node type of adjacent node, to the request that the via node that has moved is initiated and home base station connects so.Concrete implementation procedure is similar, does not repeat them here.
In addition, the present inventor finds that in the prior art, X2 interface is the wireline interface between the eNB, is used for interactive information between eNB and eNB, needs in the reciprocal process of this information through one section time delay.Such as, if via node 1 need carry out information interaction with the via node 2 of operation, such as load balancing (LB, Load Balance), Inter-Cell Interference Coordination (ICIC, Inter-CellInterferenceCoordination), switch (HO, Hand Over) etc., wherein, the home base station of via node 1 is eNB1, the home base station of via node 2 is eNB2, then the information interactive process link that need pass through is: via node 1-home base station eNB1-home base station eNB2-via node 2, namely need in the reciprocal process of this information through three sections time delays, and hence one can see that, if when carrying out information interaction between via node in the prior art, can bring extra time delay, generally speaking, the user can not bear.Therefore, introduce in the prior art after the via node, the communication delay between the via node increases, thereby causes the performance of system to descend.
For a via node 1, its home base station is eNB1, adjacent base station with eNB1 carries out information interaction if desired, such as LB (load balancing), ICIC (Inter-Cell Interference Coordination), HO (switching) etc., the home base station eNB2 of its via node 2, the link that then needs to pass through is: via node 1-home base station eNB1-home base station eNB2, need in the reciprocal process of this information through two sections time delays, also brought extra time delay compared to existing technology, generally speaking, the user can not bear.Therefore introduce after the relaying, the communication delay between the adjacent base station of relaying home base station and the via node 1 can make systematic function descend.To this, the embodiment of the invention provides embodiment four and embodiment five:
Embodiment four
Consult Fig. 4, a kind of via node of providing in the embodiment of the invention 4 particular flow sheet that is connected method for building up with network node is provided, in this embodiment, via node can be according to the node type of the adjacent node that gets access to, select a via node, and initiate the request of setting up wireless X2 interface to the via node of selecting, detailed process comprises:
Step 401: obtain the node type of adjacent node, and selected via node to be connected;
When a via node (i.e. via node 2 among the figure) obtains the node type of adjacent node, via node 2 is according to the node type of adjacent node, selected via node to be connected 1;
Step 402: this via node 2 sends to selected via node to be connected 1 and connects the request of foundation, such as, set up RRC and connect, setting up the node type of carrying oneself in the request in this connection is via node, and/or the type that connects is " setting up wireless X2 interface " etc.;
Step 403: this via node to be connected 1 is admitted message to via node 2 feedbacks, and this admittance message comprises the foundation request of accepting wireless X2 interface;
Certainly, in this step, if feed back refuse information, this refuse information comprises the foundation request that can not receive wireless X2 interface to this via node to be connected 1 to via node 2;
Step 404: this via node 2 sends resource allocation request message to this via node to be connected 1, this resource allocation request message comprises the customizing messages that carries oneself, can comprise at least a in this customizing messages: USIM info (as IMSI), Max Tx Power, location, MBSFN backhaulconfiguration etc., at this moment, via node 2 is used as a user to this via node to be connected 1, for the user distributes C-RNTI and wireless uplink Radio Resource;
Step 405: this via node to be connected 1 is to via node 2 feedback resource allocation response messages, can comprise in this resource assignment response information but at least a: PCI, TAC, IP, sharing PLMN list etc., at this moment, this via node to be connected 1 is used as a user to via node 2, for the user distributes C-RNTI and wireless uplink Radio Resource.
Certainly, in this embodiment, for the implementation procedure of step 402 and step 403, also can realize based on existing RACH signaling and RRC signaling; Each parameter in step 404 and the step 405, also can with step 402 and step 403 in transmission of parameter, its resource assignment response process also can be based on the RRC signaling.
Embodiment five
Consult Fig. 5, a kind of via node of providing in the embodiment of the invention 5 particular flow sheet that is connected method for building up with network node is provided, in this embodiment, if via node can't be known the node type of adjacent node, as not receiving the broadcast message that comprises node type that adjacent node sends, the request that via node can directly be set up wireless X2 interface to another via node initiation, detailed process comprises:
Step 501: when demand and/or the network condition selected to be connected via node (such as via node 1 in figure) of a via node (via node 2 in such as figure) according to self;
Step 502: via node 2 sends to via node to be connected 1 and connects the request of foundation, and it is via node that the node type of carrying oneself in the request is set up in this connection, and the sign of home base station;
Step 503: this via node to be connected 1 is to admit message to via node 2 feedbacks, point out it is to set up wireless X2 interface in this admittance message, and the node type of oneself is via node;
Can certainly feed back refuse information, comprise in this refuse information and disagree with and set up wireless X2 interface, and the node type of oneself be base station etc.;
Step 504: this via node 2 sends configuration report to this via node to be connected 1, carry the customizing messages of oneself, this customizing messages comprises but is not limited thereto: USIM info (as IMSI), Max TxPower, location, MBSFN backhaul configuration etc., at this moment, via node is used as a user to this via node to be connected, for the user distributes C-RNTI and wireless uplink Radio Resource;
Step 505: this via node to be connected 1 is to via node 2 feedback configuration information, this configuration information comprises but is not limited thereto: PCI, TAC, IP, sharing PLMN list etc., at this moment, this via node to be connected is used as a user to via node, for the user distributes C-RNTI and wireless uplink Radio Resource.
Certainly, in this embodiment, for the implementation procedure of step 502 and step 503, also can realize based on existing RACH signaling and RRC signaling; Each parameter in step 504 and the step 505, also can with step 302 and step 303 in transmission of parameter.
Above-described embodiment 4 and embodiment 5 set up wireless X2 interface between via node and via node, the request that via node is set up wireless X2 interface to the via node initiation that has moved; The implementation procedure of these two embodiment also can be applied to the adjacent base station of via node and home base station and set up wireless X2 interface, mainly is the mutual demand of adjacent base station direct information that adapts to following via node and home base station.Be via node for can carry out with the adjacent base station of home base station necessary direct information mutual (such as, load balancing, ICIC etc.), via node need be initiated the request of setting up wireless X2 interface to the adjacent base station of home base station.
Connect in order to set up wireless X2 interface, in the signaling and the data that adopt the radio bearer of eating dishes without rice or wine to carry X2 interface between the base station, upper strata between the via node.In order to simplify the resource allocation management mode, distribute the up-link wireless carrying that is similar to UE to the other side between the via node, like this can be by the mode of scheduling, avoid or reduce the interference that the other side brings.Connecting establishment stage, distributing C-RNTI between the via node mutually, can go to dispatch the other side according to the mode of UE, concrete implementation procedure is consulted Fig. 6, is the flow chart of distributing radio resource between the embodiment of the invention 6 via nodes.In this embodiment, being assigned as Radio Resource mutually with via node 1 and via node 2 is example, specifically comprises:
Step 601: via node 2 sends to connect to via node 1 sets up request message (connecting the request of foundation etc. such as RRC), and this connection is set up in the request message and comprised: wireless X2 interface link information;
Step 602: via node 1 sends connection establishment response message to via node 2, comprises in this connection establishment response message: distribute via node 1 to the uplink radio bearer (ULRB, Uplink-Radio Bearer) of via node 2
Step 603: via node 2 sends connection setup complete message to via node 1 after receiving described connection establishment response message;
Step 604: via node 1 sends to connect to via node 2 sets up request message, and this connection is set up in the request message and comprised: wireless X2 interface link information;
Step 605: via node 2 sends connection establishment response message to via node 1, comprises in this connection establishment response message: distribute via node 2 to the uplink radio bearer (ULRB, Uplink-Radio Bearer) of via node 1
Step 606: via node 1 sends connection setup complete message to via node 2 after receiving described connection establishment response message.
Therefore, in the embodiment of the invention, via node can be according to the node type of adjacent node, automatically setting up wireless X2 interface according to the demand of self with network condition is connected, connect by the wireless X2 interface of setting up, via node can carry out necessary direct information alternately (such as LB with other network nodes, ICIC, HO etc.), not only can reduce the time delay on the information interaction link, and reduced the network node number that relates to, also reduced the transfer resource of corresponding air interface and the transfer resource of terrestrial interface, particularly, if can get access to the node type of adjacent node, can clearly set up the target of wireless X2 interface, avoid blindly request, reduce unaccepted probability.
Accordingly, the embodiment of the invention also provides the be connected method for building up of a kind of via node with network node, its flow chart as shown in Figure 7, described method comprises:
Step 701: network node receives the connection of the node transmission of access network and sets up request message, and described connection is set up request message and comprised: the node type of described node and/or the type of connection;
Wherein, described connection is set up request message and be can further include: the wireless single frequency network backhaul configuration of general mobile identification number, maximum transmission power, position, multimedia broadcast multi-broadcasting business;
Step 702: network node judges according to the node type of described node and/or the type of connection whether described node is via node; If, execution in step 703; Otherwise execution in step 704;
Step 703: send connection establishment response message to described node;
Step 704: handle according to the node type of described node and/or the type of connection; For example judge that described node is UE, then can handle according to existing handling process to UE.
Wherein, described connection establishment response message can further include: the configuration parameter of wireless backhaul link, residential quarter-Radio Network Temporary Identifier and the wireless uplink resource of distributing for via node; Wherein, the configuration parameter of described wireless backhaul link comprises: Physical Cell Identifier, Tracking Area Code, IP and the tabulation of shared public land mobile network.
Wherein, described network node can be the adjacent base station of home base station, home base station or via node.
Wherein, described method can further include: when described network node was the adjacent base station of home base station or via node, the node of access network and the adjacent base station of described home base station or via node distributed residential quarter-Radio Network Temporary Identifier and wireless uplink resource mutually.
That is to say, after the node that described via node to be connected is access network distributed residential quarter-Radio Network Temporary Identifier and wireless uplink resource, the node of described access network also needed to distribute residential quarter-Radio Network Temporary Identifier and wireless uplink resource for described via node to be connected.Be Resources allocation mutually between the via node that has moved in the network, such as, distribute residential quarter-Radio Network Temporary Identifier and wireless uplink resource etc., but be not limited to this, can be other resources, present embodiment is not restricted.
In this embodiment, for the wireless X2 interface that connects between via node, the signaling and the data that between via node, adopt the radio bearer of eating dishes without rice or wine to carry the upper strata X2 interface.In order to simplify the resource allocation management mode, distribute the up-link wireless carrying that is similar to UE to the other side between the via node, like this can be by the mode of scheduling, avoid or reduce the interference that the other side brings.Therefore, connecting establishment stage (connecting foundation etc. such as RRC), can distribute C-RNTI and ascending wireless resource mutually between the via node.
Implementation procedure based on said method, the embodiment of the invention also provides the be connected apparatus for establishing of a kind of via node with network node, its structural representation sees Fig. 8 for details, described device comprises: set up request transmitting unit 81 and set up response receiving element 82, wherein, this sets up request transmitting unit 81, is used for sending to connect to the network node of selecting to be connected setting up request message, and described connection is set up request message and comprised: the node type of described self node and/or the type of connection; This sets up response receiving element 82, is used for receiving the connection establishment response message that described network node to be connected sends.
Described device can further include: judging unit, first selected cell and second selected cell, wherein, described judging unit, be used for judging whether to know the node type of adjacent network node, if will know that then the judged result of the node type of adjacent network node sends to second selected cell; Otherwise, the judged result of not knowing the node type of adjacent network node is sent to first selected cell;
Described first selected cell, be used for when receiving the judged result of the described node type of knowing adjacent network node, network node types according to required connection, and s own situation and/or network condition select a network node as network node to be connected, and the network node to be connected of described selection is notified to sets up request transmitting unit;
Described second selected cell, the node type that is used for the described adjacent network node that network node types and judging unit according to required connection send, select a described adjacent network node with the described required network node types coupling that is connected as network node to be connected as network node to be connected, and the network node of described selection be notified to set up request transmitting unit.
Wherein, the network node to be connected of described first selected cell or described second selected cell selection specifically comprises: on the home base station in the operational network, the adjacent base station of home base station or the via node; Wherein, described home base station is specially: the actual home base station in the double bounce relay system; Perhaps, the actual home base station of multihop relay system or as the via node of home base station.
Wherein, described judging unit is known the node type of adjacent network node from synchronizing channel, broadcast channel and/or the system message of described network node.
Described device can further include: the unit is set, be used for the synchronizing channel at described network node, and/or broadcast channel, and/or add in advance in the system message or the definition information bit, described information bit is used to refer to the node type of described adjacent network node or the interface type of supporting.Wherein, described via node comprises: Class1 via node and/or type 2 via nodes; And/or layer 1 via node, layer 2 relay node and/or layer 3 via node; Described interface comprises: Un interface, S1 interface and/or X2 interface.
In the present embodiment, described connection of setting up the request transmitting unit transmission is set up in the request message and is also comprised: general mobile identification number, maximum transmission power, position, multimedia broadcast multi-broadcasting business single frequency network backhaul configuration;
The connection establishment response message that described foundation response receiving element receives comprises following a kind of at least:
The configuration parameter of the node type of described network node to be connected, the type of this connection, wireless backhaul link, residential quarter-Radio Network Temporary Identifier and the wireless uplink resource of distributing for via node; Wherein, the configuration parameter of described wireless backhaul link comprises: Physical Cell Identifier, Tracking Area Code, IP and the tabulation of shared public land mobile network.
The function that is connected each unit in the apparatus for establishing of above-mentioned via node and network node and the implementation procedure of effect see the implementation procedure of above-mentioned corresponding method for details, do not repeat them here.
Accordingly, the embodiment of the invention also provides the be connected apparatus for establishing of a kind of via node with network node, its structural representation sees Fig. 9 for details, described distributor comprises: set up request receiving element 91, determining unit 92 and set up response transmitting element 93, wherein, set up request receiving element 91, request message is set up in the connection that is used for the node transmission of reception access network, and described connection is set up request message and comprised: the type of connection and/or the node type of described node; Determining unit 92 is used for determining that according to the type of described connection and/or the node type of described node described node is via node, then sends the notice that this node is via node; Set up response transmitting element 93, be used for when this node that receives the determining unit transmission is the notice of via node, sending connection establishment response message to described node.
Wherein, described via node and network node is connected on the adjacent base station or via node that apparatus for establishing is integrated in home base station in the operational network, home base station; Perhaps independent part is deployed in the network; Wherein said home base station is specially the actual home base station in the double bounce relay system; Perhaps, the actual home base station of multihop relay system or as the via node of home base station.
Wherein, during being connected apparatus for establishing and being integrated on the adjacent base station of home base station or the via node of described via node and network node, adjacent base station or the via node of the node of access network and described network home base station distribute residential quarter-Radio Network Temporary Identifier and wireless uplink resource mutually.
The implementation procedure of the function of each unit and effect sees the implementation procedure of above-mentioned corresponding method for details in the above-mentioned distributor, does not repeat them here.
This shows, in the embodiment of the invention, via node can be according to the node type of adjacent node, automatically connect with home base station and set up wireless X2 interface and be connected according to self demand and network condition, connect by the wireless X2 interface of setting up, via node can carry out necessary direct information alternately (such as LB with other network nodes, ICIC, HO etc.), not only can reduce the time delay on the information interaction link, and reduced the network node number that relates to, also reduced the transfer resource of corresponding air interface and the transfer resource of terrestrial interface, if particularly via node can get access to the node type of adjacent node, can be clearly and network node connect and/or set up the target of wireless X2 interface, avoid blindly request, reduce unaccepted probability.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product can be stored in the storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (20)
1. the method for building up that is connected of a via node and network node is characterized in that, comprising:
When knowing the node type of adjacent network node, then according to the network node types of required connection, and the node type of described adjacent network node selects a described adjacent network node that mates with the described required network node types that is connected as network node to be connected, perhaps when not knowing the node type of adjacent network node, then select a described adjacent network node as network node to be connected according to s own situation and/or network condition;
Send connection to the network node of selecting to be connected and set up request message, described connection is set up request message and is comprised: the type of the node type of self and/or connection;
Receive the connection establishment response message that described network node to be connected sends.
2. method according to claim 1 is characterized in that, before request message was set up in described network node transmission connection to be connected to selection, described method also comprised:
When interface type that the node type of knowing adjacent network node and described adjacent network node are supported, then according to the network node types of required connection, and the node type of described adjacent network node selects one with the described required network node types coupling that is connected, and the described adjacent network node that the connection type of the described interface type of supporting and required foundation mates is as network node to be connected.
3. method according to claim 1 is characterized in that, describedly knows that the node type of adjacent network node or the interface type that described adjacent network node is supported are specially:
From the synchronizing channel of described adjacent network node, and/or broadcast channel, and/or know the node type of described adjacent network node or the interface type that described adjacent network node is supported in the system message.
4. method according to claim 3 is characterized in that, described method also comprises:
Add in advance in synchronizing channel, broadcast channel and/or the system message of described adjacent network node or the definition information bit, described information bit is used to refer to the node type of described adjacent network node or the interface type of supporting.
5. method according to claim 1 is characterized in that, when not knowing the node type of adjacent network node:
The network node that connects when needs is the adjacent base station of via node or home base station, and then described connection is set up request message and also comprised: the home base station sign.
6. method according to claim 5 is characterized in that,
When the network node to be connected according to s own situation and/or network condition selection is home base station, and when the network node of described required connection is home base station, then described connection establishment response message comprises: the node type of home base station, and/or the type of this connection is to connect with home base station;
When the network node to be connected according to s own situation and/or network condition selection is via node, and when the network node of described required connection is via node, then described connection establishment response message comprises: the node type of described via node, and/or the type of this connection is to set up wireless X2 interface;
When the network node types to be connected according to s own situation and/or network condition selection is the adjacent base station of home base station, and when the network node of described required connection is the adjacent base station of home base station, then described connection establishment response message comprises: the node type of the adjacent base station of described home base station, and/or the type of this connection is to set up wireless X2 interface.
7. method according to claim 1 is characterized in that, when knowing the node type of adjacent network node:
The network node that connects when needs is home base station, and then described connection is set up in the request message: the type of connection is that via node and home base station connect;
The network node that connects when needs is via node, and then described connection is set up in the request message: the type of connection is that via node and another via node are set up X2 interface, and described connection is set up request message and comprised that also home base station identifies;
The network node that connects when needs is the adjacent base station of home base station, then described connection is set up in the request message: the type of connection is that the adjacent base station of via node and home base station is set up X2 interface, and described connection is set up request message and also comprised home base station sign.
8. method according to claim 7 is characterized in that,
Described connection establishment response message comprises: connect that to set up the result be successfully or failure, set up the result and fail if connect, described connection establishment response message also comprises the reason of failure.
9. according to claim 6 or 7 described methods, it is characterized in that described home base station is specially: the home base station in the double bounce relay system; Perhaps, the home base station of multihop relay system; Perhaps, in the multihop relay system as the via node of home base station.
10. according to claim 1 to 6 each or 8 described methods, it is characterized in that,
Described connection set up request message also comprise following one of at least: general mobile identification number, maximum transmission power, position and multimedia broadcast multi-broadcasting business single frequency network backhaul configuration;
Setting up the result when connection is successfully the time, and described connection establishment response message also comprises: be residential quarter-Radio Network Temporary Identifier and the wireless uplink resource that via node distributes;
Setting up the result when connection is successfully the time, and when described network node to be connected is home base station, described connection establishment response message also comprises: the configuration parameter of wireless backhaul link, wherein, the configuration parameter of described wireless backhaul link comprises a kind of at least: Physical Cell Identifier, Tracking Area Code, IP and the tabulation of shared public land mobile network.
11. the method for building up that is connected of a via node and network node is characterized in that, comprising:
The node of network is when knowing the node type of adjacent network node, then according to the network node types of required connection, and the node type of described adjacent network node selects a described adjacent network node that mates with the described required network node types that is connected as network node to be connected, perhaps the node of network is when interface type that the node type of knowing adjacent network node and described adjacent network node are supported, then according to the network node types of required connection, and the node type of described adjacent network node selects one to mate with the described required network node types that is connected, and the described adjacent network node of the connection type of the described interface type of supporting and required foundation coupling is as network node to be connected, perhaps the node of network then selects a described adjacent network node as network node to be connected according to s own situation and/or network condition when not knowing the node type of adjacent network node;
Request message is set up in the connection that the node that described network node to be connected receives access network sends, and described connection is set up request message and comprised: the node type of described node and/or the type of connection;
Described network node to be connected judges according to the node type of described node and/or the type of connection whether described node is via node; If then send connection establishment response message to described node.
12. method according to claim 11 is characterized in that, described network node is: the adjacent base station of home base station, home base station or via node.
13. method according to claim 11 is characterized in that,
Described connection is set up request message and is also comprised: general mobile identification number, maximum transmission power, position, multimedia broadcast multi-broadcasting business single frequency network backhaul configuration;
Setting up the result when connection is successfully the time, and described connection establishment response message comprises a kind of at least: the node type of described network node, the type of connection, residential quarter-Radio Network Temporary Identifier and the wireless uplink resource of distributing for via node;
Setting up the result when connection is successfully the time, and when described macroreticular node to be connected is home base station, described connection establishment response message also comprises: the configuration parameter of wireless backhaul link, wherein, the configuration parameter of described wireless backhaul link comprises a kind of at least: Physical Cell Identifier, Tracking Area Code, IP and the tabulation of shared public land mobile network.
14. method according to claim 11 is characterized in that, described method also comprises:
When described network node was the adjacent base station of home base station or via node, the node of access network and the adjacent base station of described home base station or via node distributed residential quarter-Radio Network Temporary Identifier and wireless uplink resource mutually.
15. the apparatus for establishing that is connected of a via node and network node is characterized in that, comprising: judging unit, first selected cell, second selected cell, set up request transmitting unit and set up the response receiving element, wherein,
Described judging unit is for the node type that judges whether to know adjacent network node, if will know that then the judged result of the node type of adjacent network node sends to second selected cell; Otherwise, the judged result of not knowing the node type of adjacent network node is sent to first selected cell;
Described first selected cell, be used for when receiving the judged result of the described node type of knowing adjacent network node, select a network node as network node to be connected according to s own situation and/or network condition, and the network node to be connected of described selection is notified to sets up request transmitting unit;
Described second selected cell, the node type that is used for the described adjacent network node that network node types and judging unit according to required connection send, select a described adjacent network node with the described required network node types coupling that is connected as network node to be connected as network node to be connected, well is notified to the network node of described selection and sets up request transmitting unit;
The request of setting up sends sheep unit, is used for sending to connect to the network node of selecting to be connected setting up request message, and described connection is set up request message and comprised: described self node type and/or the type of connection;
Set up the response receiving element, be used for receiving the connection establishment response message that described network node to be connected sends.
16. device according to claim 15, it is characterized in that the network node to be connected that described first selected cell or described second selected cell are selected specifically comprises: on the home base station in the operational network, the adjacent base station of home base station or the via node; Wherein, described home base station is specially: the actual home base station in the double bounce relay system; Perhaps, the actual home base station of multihop relay system or as the via node of home base station.
17. device according to claim 15 is characterized in that, described judging unit is from the synchronizing channel of described network node, and/or broadcast channel, and/or knows the node type of adjacent network node in the system message.
18. device according to claim 15 is characterized in that, described device also comprises:
The unit is set, is used for synchronizing channel, broadcast channel and/or system message at described network node and adds in advance or define information bit, described information bit is used to refer to the node type of described adjacent network node or the interface type of supporting.
19. the apparatus for establishing that is connected of a via node and network node is characterized in that, comprising:
Set up the request receiving element, request message is set up in the connection that is used for the node transmission of reception access network, and described connection is set up request message and comprised: the type of connection and/or the node type of described node; Wherein at the node of network when knowing the node type of adjacent network node, receiving connection that the node of access network sends, to set up the network node of request message be a adjacent network node with the required network node types coupling that is connected; Perhaps at the node of network during when interface type that the node type of knowing adjacent network node and described adjacent network node are supported, the network node that request message is set up in the connection that the node of reception access network sends is to mate with the described required network node types that is connected, and an adjacent network node of the connection type of the described interface type of supporting and required foundation coupling; Perhaps at the node of network when not knowing the node type of adjacent network node, receiving connection that the node of access network sends, to set up the network node of request message be an adjacent network node of selecting according to s own situation and/or network condition;
Determining unit is used for determining according to the type of described connection and/or the node type of described node whether described node is via node, if then send the notice that described node is via node;
Set up the response transmitting element, be used for when the described node that receives the determining unit transmission is the notice of via node, sending connection establishment response message to described node.
20. device according to claim 19 is characterized in that, being connected on the adjacent base station or via node that apparatus for establishing is integrated in home base station in the operational network, home base station of described via node and network node; Perhaps independent part is deployed in the network; Wherein, described home base station is specially the actual home base station in the double bounce relay system; Perhaps, the actual home base station of multihop relay system or as the via node of home base station.
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| PCT/CN2010/073943 WO2010148977A1 (en) | 2009-06-22 | 2010-06-13 | Method and apparatus for establishing connection between relay nodes and network nodes |
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| CN2009101467369A CN101932120B (en) | 2009-06-22 | 2009-06-22 | Connection establishment method and device for relay node and network node |
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| US20070070929A1 (en) * | 2005-09-28 | 2007-03-29 | Samsung Electronics Co., Ltd. | Apparatus and method for negotiating relay station capability in a multi-hop relay broadband wireless access communication system |
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2009
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2010
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101185290A (en) * | 2005-05-25 | 2008-05-21 | 三星电子株式会社 | Method and apparatus for handover between heterogeneous networks using mobile ip |
| WO2009031659A1 (en) * | 2007-09-07 | 2009-03-12 | Ntt Docomo, Inc. | Mobile communication method, mobile exchange station, radio base station, mobile station |
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| CN101932120A (en) | 2010-12-29 |
| WO2010148977A1 (en) | 2010-12-29 |
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