WO2013037233A1

WO2013037233A1 - Backhaul resource pre-configuration method and device and method for providing pre-configuration information

Info

Publication number: WO2013037233A1
Application number: PCT/CN2012/077965
Authority: WO
Inventors: 苗婷; 李岩; 王斌; 刘星; 任龙涛; 周栋
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-09-13
Filing date: 2012-06-29
Publication date: 2013-03-21
Also published as: CN103002467A

Abstract

Disclosed is a backhaul resource pre-configuration method. An access point (AP) obtains pre-configuration information from the network side; the AP selects a network node to access a network according to its capability and the pre-configuration information obtained. Also disclosed are a backhaul resource pre-configuration system, AP, network side and a method for pre-configuration information, which thus are able to achieve the pre-configuration of backhaul resources, and under the premise of ensuring the communication quality of the network node, improve the access efficiency of the AP, and ensure the quality of connection after the AP is accessed.

Description

Pre-configuration method and device for backhaul link resources, and pre-configuration information providing method

The present invention relates to a wireless communication technology, and in particular, to a method and a device for pre-configuring backhaul link resources, and a method for providing pre-configuration information. Background technique

For the Long Term Evolution (LTE) technology or the Long Term Evolution-advanced (LTE-A) technology, the current access nodes ( Access, Access Point) mainly have the following types: An enhanced Node Base Station, a Relay Node (RN), a Femto NB, a Pico NB, and a Home NB. Some of the access nodes can be directly connected. The link between the directly connected access nodes is called a backhaul link, and the link between the AP and the terminal is called an access link.

Taking RN as an example, with the continuous development of wireless communication technologies, 3GPP LTE-A can provide downlink 100 Mbit/s and uplink 50 Mbit/s peak rates in a 20 MHz spectrum bandwidth, improving the performance of cell edge users and improving the cell. Capacity, and system delay is reduced. However, to achieve such high peak rate and cell throughput, more bandwidth is needed. Due to the tight spectrum resources, some or all of the required bandwidth is only available according to the existing spectrum allocation method. In the higher frequency band, the path loss and the penetration loss of the band are large, and it is difficult to achieve good coverage. To solve the above problem, 3GPP introduces the key technology of the LTE-A system, the relay technology, A wide range of concerns from major operators and equipment vendors. The so-called relay technology, in short, is that in the downlink direction, the signal sent by the base station to the terminal is not directly sent to the terminal, but is first sent to an RN, and then forwarded by the RN to the terminal; in the uplink direction, the terminal is uplinked. The signal is not sent directly to the base station, but is sent to an RN first, and then forwarded by the RN to the base station. The so-called backhaul link refers to serving the RN. The communication link with the base station, the access link is the link between the RN and its subordinate terminals, and the base station serving the RN is called the donor base station (DeNB, Donor evolved Node B). RN mainly has the following application scenarios: To achieve seamless coverage and reduce deployment costs, deploy RN in remote rural areas; to improve coverage and user throughput while improving spectrum efficiency, and deploy urban hotspots; Scenarios, RNs are deployed indoors for the purpose of protecting cultural relics; RNs are deployed on vehicles (such as trains, buses, etc.) in order to reduce frequent cell handovers for a group of terminals that move at high speed.

The backhaul link is usually wireless in LTE/LET-A, in the following scenarios: in remote areas, temporary hotspot coverage areas, emergency network deployment, heritage sites, nomadic access points, etc. due to the cost of deploying wired connections Too high, or unable to estimate the location of the terminal and advance wired coverage, or to avoid the destruction of cultural relics caused by the deployment of the wired network, or the interruption of wired communication, can not effectively cover through the wired connection, and the wireless link can provide services quickly and effectively. Therefore, it is necessary to allocate frequency resources for the backhaul link to perform wireless connection.

For the resource problem used by the backhaul link, a part of the grant is allocated to the LTE/LTE-A system for the backhaul link connection, mainly according to the provisions of the spectrum management organization. In this allocation mode, the backhaul link and the access link multiplex the allocated spectrum resources, which inevitably cause mutual interference between the two links, and to some extent, the current base station to which the AP is connected. The capacity of the access link and the quality of service are affected. In order to reduce such interference and impact, in cognitive radio systems, the backhaul link can avoid mutual interference between the backhaul link and the access link and the capacity of the wireless access link by using the idle spectrum. The impact of the quality of service, the idle spectrum refers to the primary system spectrum resources used by unauthorized users in a certain area and time. In this case, the problem of backhaul link resource pre-configuration needs to be solved. Summary of the invention

In view of this, the main purpose of the present invention is to provide a method and a device for pre-configuring backhaul link resources, and a pre-configuration information providing method, which can implement backhaul link resource pre-configuration and protect Under the premise of the communication quality of the network node, the access efficiency of the AP is improved, and the quality of the call after the AP is accessed is ensured.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

The method for pre-configuring a backhaul link resource provided by the present invention includes:

The AP obtains the pre-configuration information from the network side; the AP selects the network node to access the network according to its own capability and the obtained pre-configuration information.

In the above solution, the network side is: a core network side network element, or a network management side network element or an evolved base station (eNB), or a donor base station (DeNB), or a central control node (CCP), or a network reconfiguration management entity ( NRM), or reassignment entity (RE).

In the foregoing solution, the pre-configuration information includes a network node list, and the network node in the network node list has a priority;

The priority is determined by the network side according to at least one of location information of the network node, a spectrum used by the network node's backhaul link, a communication quality status of the network node, and a load status of the network node;

The load status of the network node includes at least one of the following: hardware load, transmission load, radio resource status, and integrated cell available capacity.

In the above solution, the pre-configuration information further includes a frequency and bandwidth, and/or a transmission parameter requirement of a spectrum used by the backhaul link of the network node.

In the above solution, the spectrum used by the backhaul link of the network node is: a licensed spectrum or an idle spectrum.

In the above solution, the AP selects the network node according to its own capability and the obtained pre-configuration information: the AP combines the priority of the network node and the priority of each network node according to the pre-configuration information provided by the network side, and combines with the AP itself. The ability to select a network node.

In the foregoing solution, the capability of the AP itself includes the frequency and bandwidth supported by the AP, the maximum transmit power, and the capability of accessing the terminal; The capability of the access terminal includes at least one of the following: a version of the supported terminal, a total number of supported terminals, a number of terminals supported for different services, and a service that can be provided.

The present invention provides a pre-configuration system for a backhaul link resource, where the system includes: an AP and a network side;

The AP is configured to obtain pre-configuration information from the network side, and select, according to the capability of the network and the obtained pre-configuration information, the network node to access the network;

The network side is used to provide pre-configuration information to the AP.

In the above solution, the AP includes: an obtaining module and a selecting module;

Obtaining an ear block for obtaining pre-configuration information from the network side;

And a selection module, configured to select a network node to access the network according to the capability of the self and the pre-configuration information acquired by the acquiring module.

In the above solution, the selecting module is specifically configured to select a network node access network according to the network node list and the priority of each network node in the pre-configuration information acquired by the obtaining module, and the capability of the network node.

In the foregoing solution, the network side includes: a pre-configuration information generating module and a pre-configuration information sending module;

a pre-configuration information generating module, configured to: after receiving the pre-configuration information request, determine a priority of the network node, and generate pre-configuration information including a list of network nodes;

And a pre-configuration information sending module, configured to send the pre-configured information to the AP by using a pre-configuration information response message.

An AP provided by the present invention, the AP includes: an obtaining module and a selecting module; wherein, the ear module is configured to obtain pre-configuration information from the network side;

The network side provided by the present invention includes: a pre-configuration information generating module and a pre- Configuration information sending module; wherein

A pre-configuration information providing method provided by the present invention, the method comprising:

The network side receives the pre-configuration information request sent by the AP, determines the priority of the network node, generates pre-configuration information including the network node list, and sends the pre-configuration information to the AP by using the pre-configuration information response message.

In the above solution, the determining the priority of the network node is: determining according to at least one of location information of the network node, a spectrum used by the network node subordinate backhaul link, a communication quality status of the network node, and a load status of the network node. The priority of the network node.

The present invention provides a pre-configuration method and device for backhaul link resources, and a pre-configuration information providing method. The AP obtains pre-configuration information from the network side. The AP selects network node access according to its own capability and the obtained pre-configuration information. In this way, the pre-configuration of the backhaul link resources can be implemented, and the access efficiency of the AP is improved under the premise of ensuring the communication quality of the network node, and the call quality after the AP access is ensured. DRAWINGS

1 is a schematic flowchart of a method for pre-configuring backhaul link resources according to the present invention; FIG. 2 is a schematic structural diagram of a pre-configuration system for implementing backhaul link resources according to the present invention; FIG. 3 is a schematic diagram of implementing backhaul link resources according to an embodiment of the present invention; FIG. 4 is a schematic flowchart of a method for pre-configuring a backhaul link resource according to Embodiment 2 of the present invention; FIG. 5 is a schematic flowchart of a method for pre-configuring a backhaul link resource according to Embodiment 3 of the present invention; 6 is a schematic flowchart of a method for pre-configuring a backhaul link resource according to Embodiment 4 of the present invention; FIG. 7 is a schematic flowchart of a method for pre-configuring a backhaul link resource according to Embodiment 5 of the present invention; FIG. 8 is a schematic flowchart of a method for pre-configuring a backhaul link resource according to Embodiment 6 of the present invention; FIG. 9 is a schematic flowchart of a method for pre-configuring a backhaul link resource according to Embodiment 7 of the present invention; FIG. A schematic diagram of a process for implementing a pre-configuration method for backhaul link resources. detailed description

The basic idea of the present invention is: The AP obtains pre-configuration information from the network side; the AP selects the network node to access the network according to its own capability and the obtained pre-configuration information.

The invention will be further described in detail below with reference to the drawings and specific embodiments.

The present invention implements a pre-configuration method for backhaul link resources. As shown in FIG. 1, the method includes the following steps:

Step 101: The AP acquires pre-configuration information from the network side.

Specifically, the AP accesses the network as the terminal, and sends a pre-configuration information request to the network side. After receiving the pre-configuration information request, the network determines the pre-configuration information, and sends the pre-configuration information to the pre-configuration information response message. AP;

The pre-configuration information request includes information such as an identifier of the AP and/or a location of the AP;

The network side may be: a core network side network element, or a network management side network element, or an evolved base station (eNB, evolved Node B), or a DeNB, or a central control point (CCP, Central Control Point), or network reconfiguration management. Entity (NRM, Network Reconfiguration Management Entity), or reconfiguration entity (RE, Reconfiguration Entity), etc.

The core network side network element includes a mobility management entity (MME, Mobility Management)

Entity) or Service Gateway (S-GW, Serving Gateway) or Public Data Network Gateway (P-GW) or Home Subscriber Server (HSS);

The network management side network element includes an OAM (Operation Administration Maintenance) or a device management system (EMS, Equipment Management). System or network management system (NMS); the pre-configuration information includes a list of network nodes;

Further, the pre-configuration information further includes a frequency point and a bandwidth, and/or a transmission parameter requirement of a spectrum used by the backhaul link of the network node, where the transmission parameter requires, for example, a maximum transmit power allowed;

The network node refers to a node having the capability of receiving an AP;

The network node in the list of network nodes has a priority;

The spectrum used by the backhaul link of the network node may be an authorized spectrum or an idle spectrum;

The load status of the network node includes one or more of hardware load, transmission load, radio resource status, and integrated cell available capacity.

Step 102: The AP selects a network node to access the network according to its own capability and the obtained pre-configuration information.

In this step, the capabilities of the AP itself include, but are not limited to, the frequency and bandwidth supported by the AP, the maximum transmit power, and the capability of the access terminal;

The capability of the access terminal includes one or more of the following: a version of the supported terminal, a total number of supported terminals, a number of terminals supported for different services, and a service that can be provided;

The AP selects a network node according to its own capability and the obtained pre-configuration information: the AP combines the priority of the network node with the priority of each network node according to the pre-configuration information provided by the network side, and combines the capabilities of the AP itself. , select the network node.

In order to implement the foregoing method, the present invention further provides a pre-configuration system for backhaul link resources. As shown in FIG. 2, the system includes: an AP 21 and a network side 22; The AP21 is configured to acquire pre-configuration information from the network side 22, and select a network node to access the network according to the capability of the network and the obtained pre-configuration information;

The network side 22 is configured to provide pre-configuration information to the AP 21;

The pre-configuration information includes a list of network nodes;

The network node in the list of network nodes has a priority;

The AP 21 includes: an obtaining module 211 and a selecting module 212; wherein

An ear 211 for obtaining pre-configuration information from the network side 22;

The selecting module 212 is configured to select a network node to access the network according to the capability of the acquiring module 211 and the pre-configuration information acquired by the acquiring module 211;

The ear module 211 is specifically configured to access the network as a terminal and send a pre-configuration information request to the network side 22;

The selecting module 212 is specifically configured to select a network node to access the network according to the network node list and the priority of each network node in the pre-configuration information acquired by the obtaining module 211, and the capability of the network node.

The network side 22 includes: a pre-configuration information generating module 221 and a pre-configuration information sending module. 222; Among them,

The pre-configuration information generating module 221 is configured to: after receiving the pre-configuration information request, determine a priority of the network node, and generate pre-configuration information including the network node list;

The pre-configuration information sending module 222 is configured to send the pre-configuration information to the AP by using a pre-configuration information response message.

Based on the above system, the present invention further provides an AP. As shown in FIG. 2, the AP 21 includes: an obtaining module 211 and a selecting module 212;

The selection module 212 is specifically configured to select a network node to access the network according to the network node list and the priority of each network node in the pre-configuration information acquired by the ear module 211.

Based on the foregoing system, the present invention further provides a network side. As shown in FIG. 2, the network side 22 includes: a pre-configuration information generating module 221 and a pre-configuration information sending module 222;

The present invention also provides a pre-configuration information providing method, including:

The network side receives the pre-configuration information request sent by the AP, determines the priority of the network node, generates pre-configuration information including the network node list, and sends the pre-configuration information to the AP by using the pre-configuration information response message. Determining the priority of the network node is: determining a priority of the network node according to at least one of location information of the network node, a spectrum used by the network node subordinate backhaul link, a communication quality status of the network node, and a load status of the network node level. In the following embodiments, the network side may be a core network side network element (such as MME, S-GW, P-GW, HSS) or a network management side network element (such as OAM, EMS, NMS) or an eNB or DeNB or CCP or NRM or RE, the following embodiment takes the OAM as an example on the network side and the other network elements on the network side. In addition, the AP uses the RN as an example to describe the specific implementation manner, and the corresponding network node having the RN receiving function is the DeNB.

Embodiment 1

In this embodiment, the OAM determines the priority of the DeNB according to the location information of the DeNB, and implements a pre-configuration method of the backhaul link resource. As shown in FIG. 3, the method includes the following steps: Step 201: The RN is connected by the terminal identity. After the network is connected to the network, the pre-configuration information request is sent to the OAM. In this step, the RN accesses the network in the terminal identity. Generally, the RN selects any eNB that can access the same as the normal terminal, and establishes a connection between the RN and the OAM.

The pre-configuration information request includes information such as an identifier of the AP and/or a location of the AP.

Step 202: After receiving the pre-configuration information request of the RN, the OAM determines the priority of the DeNB according to the location information of the DeNB, generates pre-configuration information, and sends the pre-configuration information to the RN through the pre-configuration information response message.

In this step, the rule for determining the priority of the DeNB may be that the priority of the DeNB that is closer to the RN is higher than the priority of the DeNB that is farther than the RN; for example, the DeNB1 is about 30 kilometers away from the RN, and the DeNB2 is about 25 kilometers away from the RN. DeNB3 is about 40 kilometers away from the RN, according to the rule for determining the priority of the DeNB, the priority of the three DeNBs is DeNB2, DeNB1, DeNB3 from high to low;

The pre-configuration information includes a DeNB list, and all DeNBs in the DeNB list have priority;

The pre-configuration information further includes: a frequency point and a bandwidth and/or a transmission parameter requirement (such as the maximum allowed transmit power, etc.) of the spectrum used by the DeNB subordinate backhaul link.

Step 203: The RN selects the DeNB to access the network according to its own capability and the obtained pre-configuration information.

In this step, the capability of the RN itself includes the frequency and bandwidth supported by the RN, the maximum transmit power, and the capability of accessing the terminal;

The method for the RN to select the DeNB is: selecting the DeNB according to the DeNB list and the priority of each DeNB in the pre-configuration information provided by the OAM, and combining the capabilities of the RN itself; for example, the RN starts from the DeNB with the highest priority and checks whether it supports the DeNB. Whether the frequency and bandwidth provided by the DeNB can meet the requirements of the transmission parameters, and if the unsatisfied one is encountered in the inspection process, the next DeNB is turned to check, and if it is satisfied, the RN selects the DeNB to access the network.

Embodiment 2

In this embodiment, the OAM determines the priority of the DeNB according to the location information of the DeNB and the spectrum used by the downlink backhaul link of the DeNB, and implements a pre-configuration method of the backhaul link resource. As shown in FIG. 4, the method includes the following Steps:

Step 301: After the RN accesses the network as the terminal identity, the RN sends a pre-configuration information request to the OAM. In this step, the RN accesses the network as the terminal identity. Generally, the RN selects any _e- accessible device like the normal terminal. NB, establish a connection between the RN and the OAM;

Step 302: After receiving the pre-configuration information request of the RN, the OAM determines the priority of the DeNB according to the location information of the DeNB and the spectrum used by the downlink backhaul link of the DeNB, generates pre-configuration information, and uses the pre-configuration information response message to The pre-configuration information is sent to the RN;

The spectrum used by the downlink backhaul link of the DeNB may be an authorized spectrum or an idle spectrum. The idle spectrum refers to a spectrum resource that is not used by an authorized user in a certain area or time, and may be a TV band idle spectrum (TVWS, TV White Spaces), and/or a GSM system idle spectrum resource, and/or 3G (WCDMA). /CDMA2000/TD-SCDMA) System idle spectrum resources, and/or LTE/LTE-A system idle spectrum resources.

The rule for determining the priority of the DeNB may be that the spectrum used by the backhaul link is the priority of the DeNB whose idle spectrum is higher than the priority of the DeNB used by the backhaul link is the licensed spectrum; the backhaul link of the DeNB When the type of the spectrum resource used is the same, the priority of the DeNB near the RN is higher than the priority of the DeNB far from the RN; for example, the downlink link of the DeNB1 uses the idle spectrum, about 40 kilometers from the RN; The link uses the idle spectrum, about 35 kilometers away from the RN; the downlink backhaul link of DeNB3 uses the licensed spectrum, about 30 kilometers away from the RN; then according to the rule of determining the priority of the DeNB, the priorities of the three DeNBs are high to low. It is DeNB2, DeNB1, and DeNB3.

The pre-configuration information includes a DeNB list, and all DeNBs in the DeNB list have priorities;

Step 303: The RN selects the DeNB to access the network according to its own capability and the obtained pre-configuration information.

In this step, the capability of the RN itself includes the frequency and bandwidth supported by the RN, the maximum transmit power, and the capability of the access terminal;

The method for the RN to select the DeNB is: selecting the DeNB according to the DeNB list and the priority of each DeNB in the pre-configuration information provided by the OAM, and combining the capabilities of the RN itself; for example, the RN starts from the DeNB with the highest priority and checks whether it supports the DeNB. Whether the frequency and bandwidth provided by the DeNB can meet the requirements of the transmission parameters, and if the unsatisfied one is encountered in the inspection process, the next DeNB is turned to check, and if it is satisfied, the RN selects the DeNB to access the network. Embodiment 3

In this embodiment, the OAM is determined according to the location information of the DeNB and the communication quality status of the DeNB.

The priority of the DeNB implements a pre-configuration method for backhaul link resources. As shown in Figure 5, the method includes the following steps:

Step 401: After the RN accesses the network as the terminal, the RN sends a pre-configuration information request to the OAM. In this step, the RN accesses the network as the terminal identity. Generally, the RN selects any _e- accessible like the normal terminal. NB, establish a connection between the RN and the OAM;

Step 402: After receiving the pre-configuration information request of the RN, the OAM determines the priority of the DeNB according to the location information of the DeNB and the communication quality status of the DeNB, generates pre-configuration information, and sends the pre-configuration information by using a pre-configuration information response message. Give RN;

In this step, the communication quality status includes a bit error rate, a transmission delay, a transmission rate, a dropped rate, a throughput, and the like;

The rule for determining the priority of the DeNB may be that the priority of the DeNB that is closer to the RN is higher than the priority of the DeNB that is farther than the RN. If the distance from the RN is the same, the better the communication quality of the DeNB is, the higher the priority is. For example, the communication quality status is based on the error rate. The lower the bit error rate, the better the communication quality. For example, if the DeNB1 is about 40 kilometers away from the RN, the bit error rate is 10%. The DeNB2 is about 35 kilometers away from the RN. The code rate is 5%; the DeNB3 is about 35 kilometers away from the RN, and the bit error rate is 10%; then according to the rule for determining the priority of the DeNB, the priorities of the three DeNBs are DeNB2, DeNB3, and DeNB1 from high to low.

Step 403: The RN selects the DeNB according to its own capability and the obtained pre-configuration information. Into the network;

Embodiment 4

In this embodiment, the OAM determines the priority of the DeNB according to the location information of the DeNB and the load status of the DeNB, and implements a pre-configuration method of the backhaul link resource. As shown in FIG. 6, the method includes the following steps:

Step 501: After the RN accesses the network as the terminal, the RN sends a pre-configuration information request to the OAM. In this step, the RN accesses the network as the terminal identity. The RN selects any _e- accessible like the normal terminal. NB, establish a connection between the RN and the OAM;

Step 502: After receiving the pre-configuration information request of the RN, the OAM determines the priority of the DeNB according to the location information of the DeNB and the load status of the DeNB, generates pre-configuration information, and sends the pre-configuration information to the pre-configuration information response message. RN;

In this step, the load status of the DeNB includes one or more of hardware load, transmission load, wireless resource status, and integrated d, area available capacity;

The rule for determining the priority of the DeNB may be that the priority of the DeNB that is closer to the RN is higher than the priority of the DeNB that is farther than the RN. If the distance from the RN is the same, the lighter the load of the DeNB is, the higher the priority is; For example: The load status is taken as an example of the radio resource status, where the larger one of the total physical resource block usage rate and the downlink total physical resource block usage rate is used to indicate no Line resource status, the smaller the value, the lighter the load; the DeNB1 is about 30 kilometers from the RN, the radio resource status is 40; the DeNB2 is about 35 kilometers from the RN, the radio resource status is 60; the DeNB3 is about 30 kilometers from the RN, and the radio resource status is 50; Then, according to the rule for determining the priority of the DeNB, the priority of the three DeNBs is DeNB1, DeNB3, and DeNB2 from high to low.

Step 503: The RN selects the DeNB to access the network according to its own capability and the obtained pre-configuration information.

Embodiment 5

In this embodiment, the OAM determines the priority of the DeNB according to the location information of the DeNB, the spectrum used by the downlink backhaul link of the DeNB, and the communication quality status of the DeNB, and implements a pre-configuration method of the backhaul link resource, as shown in FIG. The method includes the following steps:

Step 601: After the RN accesses the network as the terminal, the RN sends a pre-configuration information request to the OAM. In this step, the RN accesses the network as the terminal identity. The RN selects any _e- accessible like the normal terminal. NB, establish a connection between the RN and the OAM;

The pre-configuration information request includes information such as an identifier of the AP and/or a location of the AP. Step 602: After receiving the pre-configuration information request of the RN, the OAM determines the priority of the DeNB according to the location information of the DeNB, the spectrum used by the downlink backhaul link of the DeNB, and the communication quality status of the DeNB, generates pre-configuration information, and performs pre-configuration. The information response message sends the pre-configuration information to the RN;

In this step, the spectrum used by the downlink backhaul link of the DeNB may be an authorized spectrum or an idle spectrum.

The idle spectrum refers to a spectrum resource that is not used by an authorized user in a certain area or time, and may be a television band idle spectrum, and/or a GSM system idle spectrum resource, and/or a 3G system idle spectrum resource, and/or LTE. /LTE-A system idle spectrum resources.

The communication quality status includes a bit error rate, a transmission delay, a transmission rate, a dropped call rate, a throughput, and the like;

The rule for determining the priority of the DeNB may be that the spectrum used by the backhaul link is the priority of the DeNB whose idle spectrum is higher than the priority of the DeNB used by the backhaul link is the licensed spectrum; the backhaul link of the DeNB When the type of the spectrum resource used is the same, the priority of the DeNB that is close to the RN is higher than the priority of the DeNB that is far from the RN; the type of the spectrum resource used by the backhaul link of the DeNB and the distance from the RN are the same. In this case, the better the communication quality status of the DeNB is, the higher the priority is; for example, the communication quality status is exemplified by the error rate, and the lower the error rate is, the better the communication quality condition is; DeNB1: the idle spectrum, about 40 kilometers from the RN. Bit error rate 5%; DeNB2: idle spectrum, about 40 km from RN, error rate 3%; DeNB3: licensed spectrum, about 30 km from RN, error rate 5%; DeNB4: idle spectrum, about RN 30 km, the error rate is 8%; according to the rule for determining the priority of the DeNB, the priority of the four DeNBs is DeNB4, DeNB2, DeNB1, DeNB3 from high to low.

The pre-configuration information further includes: a frequency point of a spectrum used by a downlink backhaul link of the DeNB and Bandwidth and / or transmission parameters (such as the maximum allowed transmit power, etc.).

Step 603: The RN selects the DeNB to access the network according to its own capability and the obtained pre-configuration information.

Embodiment 6

In this embodiment, the OAM determines the priority of the DeNB according to the location information of the DeNB, the spectrum used by the downlink backhaul link of the DeNB, and the load status of the DeNB, and implements a pre-configuration method of the backhaul link resource, as shown in FIG. The method includes the following steps:

Step 701: After the RN accesses the network as the terminal, the RN sends a pre-configuration information request to the OAM. In this step, the RN accesses the network as the terminal identity. Generally, the RN selects any _e- accessible like the normal terminal. NB, establish a connection between the RN and the OAM;

Step 702: After receiving the pre-configuration information request of the RN, the OAM determines the priority of the DeNB according to the location information of the DeNB, the spectrum used by the downlink backhaul link of the DeNB, and the load status of the DeNB, generates pre-configuration information, and adopts pre-configuration information. Sending the pre-configuration information to the RN by using a response message;

In this step, the spectrum used by the downlink backhaul link of the DeNB may be an authorized spectrum or an idle spectrum, where the authorized spectrum refers to a spectrum that is fixedly allocated to a specific communication system; Spectrum resources used by unauthorized users in the area or time The source may be a television band idle spectrum, and/or a GSM system idle spectrum resource, and/or a 3G system idle spectrum resource, and/or an LTE/LTE-A system idle spectrum resource.

The load status of the DeNB includes one or more of hardware load, transmission load, radio resource status, and integrated cell available capacity;

The rule for determining the priority of the DeNB may be that the spectrum used by the backhaul link is the priority of the DeNB whose idle spectrum is higher than the priority of the DeNB used by the backhaul link is the licensed spectrum; the backhaul link of the DeNB When the type of the spectrum resource used is the same, the priority of the DeNB that is close to the RN is higher than the priority of the DeNB that is far from the RN; the type of the spectrum resource used by the backhaul link of the DeNB and the distance from the RN are the same. In this case, the lighter the load of the DeNB is, the higher the priority is. For example, the load status is taken as an example of the radio resource status. Here, the larger one of the total physical resource block usage rate and the downlink total physical resource block usage rate is used to represent the radio resource. State, the smaller the value, the lighter the load; DeNB1: idle spectrum, about 40 kilometers from RN, radio resource status 50; DeNB2: idle spectrum, about 30 kilometers from RN, radio resource status 60; DeNB3: licensed spectrum, from RN About 35 km, radio resource status 50; DeNB4: licensed spectrum, about 35 km from RN, radio resource status 45; Priority rules, the four DeNB priority from high to low DeNB2, DeNBl, DeNB4, DeNB3.

Step 703: The RN selects the DeNB to access the network according to its own capability and the obtained pre-configuration information.

In this step, the RN's own capabilities include the frequency and bandwidth supported by the RN, the maximum transmit power, and the capability of the access terminal; The method for the RN to select the DeNB is: selecting the DeNB according to the DeNB list and the priority of each DeNB in the pre-configuration information provided by the OAM, and combining the capabilities of the RN itself; for example, the RN starts from the DeNB with the highest priority and checks whether it supports the DeNB. Whether the frequency and bandwidth provided by the DeNB can meet the requirements of the transmission parameters, and if the unsatisfied one is encountered in the inspection process, the next DeNB is turned to check, and if it is satisfied, the RN selects the DeNB to access the network.

Example 7

In this embodiment, the OAM determines the priority of the DeNB according to the location information of the DeNB, the communication quality status of the DeNB, and the load status of the DeNB, and implements a method for pre-configuring the backhaul link resources. As shown in FIG. 9, the method includes the following Steps:

Step 801: After the RN accesses the network as the terminal, the RN sends a pre-configuration information request to the OAM. In this step, the RN accesses the network as the terminal identity. The RN selects any _e- accessible like the normal terminal. NB, establish a connection between the RN and the OAM;

Step 802: After receiving the pre-configuration information request of the RN, the OAM determines the priority of the DeNB according to the location information of the DeNB, the communication quality status of the DeNB, and the load status of the DeNB, generates pre-configuration information, and uses the pre-configuration information response message. The pre-configuration information is sent to the RN; in this step, the communication quality status includes a bit error rate, a transmission delay, a transmission rate, a dropped call rate, a throughput, and the like;

The rule for determining the priority of the DeNB may be that the priority of the DeNB that is closer to the RN is higher than the priority of the DeNB that is farther than the RN; if the distance from the RN is the same, the better the communication quality of the DeNB is, the higher the priority is. High; when the distance from the RN and the communication quality status of the DeNB are the same, the lighter the load of the DeNB is, the higher the priority is; for example, the communication quality status is an error rate, and the lower the error rate is, the higher the communication quality is. Good; load status with radio resource status For example, here, the larger one of the total physical resource block usage rate and the downlink total physical resource block usage rate indicates the radio resource status, and the smaller the value, the lighter the load; DeNBl: about 25 kilometers from the RN, the bit error rate 8%, radio resource status 50; DeNB2: about 30 km from RN, 5% error rate, radio resource status 50; DeNB3: about 30 km from RN, 5% error rate, radio resource status 40; DeNB4: Approximately 35 km from the RN, a bit error rate of 8%, and a radio resource state of 50; then according to the rule for determining the priority of the DeNB, the priority of the four DeNBs is DeNB1, DeNB3, DeNB2, DeNB4 from high to low;

Step 803: The RN selects the DeNB to access the network according to its own capability and the obtained pre-configuration information.

Example eight

In this embodiment, the OAM determines the priority of the DeNB according to the location information of the DeNB, the spectrum used by the downlink backhaul link of the DeNB, the communication quality status of the DeNB, and the load status of the DeNB, and implements a pre-configuration method of the backhaul link resource, such as As shown in Figure 10, the method includes the following steps: Step 901: After the RN accesses the network as the terminal identity, the RN sends a pre-configuration information request to the OAM. In this step, the RN accesses the network as the terminal identity. Generally, the RN selects any _e- accessible like the normal terminal. NB, establish a connection between the RN and the OAM;

Step 902: After receiving the request of the RN, the OAM determines the priority of the DeNB according to the location information of the DeNB, the spectrum used by the downlink backhaul link of the DeNB, the communication quality status of the DeNB, and the load status of the DeNB, and generates pre-configuration information. The pre-configuration information response message sends the pre-configuration information to the RN;

The idle spectrum refers to a spectrum resource that is not used by an authorized user in a certain area or time, and may be a television band idle spectrum, and/or a GSM system idle spectrum resource, and/or a 3G system idle spectrum resource, and/or LTE. /LTE-A system idle spectrum resources;

The rule for determining the priority of the DeNB may be that the spectrum used by the backhaul link is the priority of the DeNB whose idle spectrum is higher than the priority of the DeNB used by the backhaul link is the licensed spectrum; the backhaul link of the DeNB When the type of the spectrum resource used is the same, the priority of the DeNB that is close to the RN is higher than the priority of the DeNB that is far from the RN; the type of the spectrum resource used by the backhaul link of the DeNB and the distance from the RN are the same. In this case, the better the communication quality status of the DeNB is, the higher the priority is. When the spectrum resource type used by the DeNB subordinate backhaul link is the same as the distance from the RN and the communication quality status of the DeNB are the same, the load of the DeNB is lighter. The higher the level; for example: the communication quality status is based on the bit error rate, the bit error rate The lower the communication quality is, the better the load status is. The load status is taken as an example of the radio resource status. Here, the larger one of the total physical resource block usage rate and the downlink total physical resource block usage rate indicates the radio resource status. The smaller the value, the smaller the load. Light; DeNBl: idle spectrum, about 35 kilometers from RN, bit error rate

5%, radio resource status 45; DeNB2: idle spectrum, about 35 km from RN, bit error rate

5%, radio resource status 35; DeNB3: idle spectrum, about 35 km from RN, bit error rate

4%, radio resource status 35; DeNB4: idle spectrum, about 25 km from RN, bit error rate

5%, radio resource status 35; DeNB5: licensed spectrum, approximately 25 km from RN, bit error rate

5%, radio resource status 35; then according to the rule of determining the priority of the DeNB, the priority of the five DeNBs is DeNB4, DeNB3, DeNB2, DeNB1, DeNB5.

Step 903: The RN selects the DeNB to access the network according to its own capability and the obtained pre-configuration information.

The method for the RN to select the DeNB is: selecting the DeNB according to the DeNB list and the priority of each DeNB in the pre-configuration information provided by the OAM, and combining the capabilities of the RN itself; for example, the RN starts from the DeNB with the highest priority and checks whether it supports the DeNB. Whether the frequency and bandwidth provided by the DeNB can meet the transmission parameter requirements, and if the unsatisfied one is encountered in the inspection process, the next DeNB is turned to check, and if it is satisfied, the RN selects the DeNB to access the network.

In the above embodiments, when the priority of the DeNB is determined according to a plurality of factors, the order of consideration of the factors may be changed. For example, the rule for determining the priority of the DeNB in the second embodiment may also be the priority of the DeNB that is close to the RN. The priority of the DeNB that is higher than the distance RN; When the DeNB is the same distance from the RN, the frequency spectrum used by the backhaul link is that the priority of the DeNB of the idle spectrum is higher than the priority of the DeNB used by the backhaul link is the priority of the DeNB of the licensed spectrum; for example, the DeNB1 is about 40 thousand from the RN. m, the backhaul link uses the idle spectrum; DeNB2 is about 30 kilometers from the RN, the backhaul link uses the idle spectrum; DeNB3 is about 30 kilometers from the RN, and the backhaul link uses the licensed spectrum; then according to the rule that determines the priority of the DeNB, this The priority of the three DeNBs is DeNB2, DeNB3, and DeNB1 from high to low.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

Claim

A method for pre-configuring a backhaul link resource, the method comprising: an access node (AP) acquiring pre-configuration information from a network side; the AP selecting a network according to its own capability and the obtained pre-configuration information. The node accesses the network.

The pre-configuration method according to claim 1, wherein the network side is: a core network side network element, or a network management side network element or an evolved base station (eNB), or a donor base station (DeNB), or a center. Control Node (CCP), or Network Reconfiguration Management Entity (NRM), or Reconfiguration Entity (RE).

The pre-configuration method according to claim 1, wherein the pre-configuration information includes a network node list, and the network node in the network node list has a priority;

The pre-configuration method according to claim 3, wherein the pre-configuration information further comprises a frequency point and a bandwidth, and/or a transmission parameter requirement of a spectrum used by the backhaul link of the network node.

The pre-configuration method according to claim 3 or 4, wherein the spectrum used by the network node subordinate backhaul link is: an authorized spectrum or an idle spectrum.

The pre-configuration method according to claim 4, wherein the AP selects a network node according to its own capability and the obtained pre-configuration information: the AP is configured according to the pre-configuration information provided by the network side. The node list and the priority of each network node, combined with the capabilities of the AP itself, select the network node.

The pre-configuration method according to claim 6, wherein the capabilities of the AP include the frequency and bandwidth supported by the AP, the maximum transmit power, and the capability of the access terminal; The capability of the access terminal includes at least one of the following: a version of the supported terminal, a total number of supported terminals, a number of terminals supported for different services, and a service that can be provided.

A pre-configuration system for a backhaul link resource, the system comprising: an AP and a network side;

The network side is used to provide pre-configuration information to the AP.

The pre-configuration system according to claim 8, wherein the AP comprises: an obtaining module and a selecting module;

The pre-configuration system according to claim 9, wherein the selection module is specifically configured to combine the network node list and the priority of each network node in the pre-configuration information acquired by the acquisition module, and combine the capabilities of the network node. Select the network node to access the network.

The pre-configuration system according to claim 10, wherein the network side comprises: a pre-configuration information generating module and a pre-configuration information sending module;

An AP, where the AP includes: an obtaining module and a selecting module; wherein, the ear is configured to obtain pre-configuration information from the network side;

And a selection module, configured to select, according to the capability of the self and the pre-configuration information acquired by the acquiring module, the network node to access the network.

A network side, the network side includes: a pre-configuration information generating module and a pre-configuration information sending module;

14. A method for providing pre-configured information, the method comprising:

The method according to claim 14, wherein the determining the priority of the network node is: according to the location information of the network node, the spectrum used by the backhaul link of the network node, the communication quality status of the network node, At least one of the load conditions of the network node determines the priority of the network node.