WO2009117942A1

WO2009117942A1 - Resource allocation method and device

Info

Publication number: WO2009117942A1
Application number: PCT/CN2009/070965
Authority: WO
Inventors: 周铮; 薛希俊; 马小飞; 马洁
Original assignee: 华为技术有限公司
Priority date: 2008-03-24
Filing date: 2009-03-24
Publication date: 2009-10-01
Also published as: CN101547515A

Abstract

A resource allocation method applied to High Speed Packet Access Network includes that: at least two carrier resources are allocated to a User Equipment having multi-carrier capability; the information of the at least two carrier resources is transmitted to the User Equipment. A resource allocation device includes an allocation unit for allocating at least two carrier resources to a User Equipment having multi-carrier capability and a transmission unit for transmitting the information of the at least two carrier resources. With the present invention, the multi-carrier resources can be obtained by the User Equipment having multi-carrier capability, and the system resource is effectively utilized.

Description

Resource allocation method and device

This application is required to be filed on March 24, 2008 with the Chinese Patent Office, application number 200810087730.4, the Chinese patent application titled "A Resource Allocation Method, Device and System", and the Chinese Patent Application on June 23, 2008. The priority of the Chinese Patent Application No. 200810131845.9, entitled "A Resource Allocation Method, Apparatus, and Communication System", the entire contents of which is incorporated herein by reference.

Technical field

The present invention relates to a high-speed data radio access technology, and in particular, to a resource allocation method and apparatus. Background technique

The Universal Mobile Telecommunications System (UMTS) is a third-generation mobile communication system using Wideband Code Division Multiple Access (WCDMA) air interface technology. The UMTS system is generally referred to as a WCDMA communication system. The UMTS system uses a similar structure to the second generation mobile communication system, including a radio access network (RAN: radio access network) and a core network (CN: core network). The wireless access network is used to handle all wireless related functions, and the CN handles all voice calls and data connections in the UMTS system and implements switching and routing functions with the external network.

The 3rd Generation Partnership Project (3GPP: 3rd Generation Partnership Project) has passed the High Speed Data Wireless Access (HSPA: High Speed Packet Access) evolution research project. The evolution network architecture of HSPA is based on packet (PS) domain services, for PS domain services. A high bit rate user rate and a shorter call delay will be provided; the circuit (CS) domain service for the current third generation mobile communication (3G: The Third Generation) system will no longer be optimized. In the evolved network of HSPA, the functions of the radio network controller (RNC: Radio Network Controller) of the existing third-generation mobile communication (3G) system are all placed on the evolved base station node (NB+: NodeB+).

In the existing UMTS system including the evolved HSPA system, one cell operates only at one carrier frequency, and each cell corresponds to one primary scrambling code, and the current cells are single carrier cells. Each cell has a fixed bandwidth of 5 megahertz (MHz) and can provide users with a transmission rate of 14 to 42 megabytes (M). However, with the development of the Internet, more updated services require a higher transmission rate as the basis. In order to enable existing systems to provide users with higher-speed services, multi-carrier HSPA (MC-HSPA: Multi-Carrier High Speed Packet Access) ) Technology came into being. Multi-carrier HSPA has two ways to break the limitation of the existing single carrier, as follows: One is that a cell can work on two carrier frequencies, and can work on up to four carrier frequencies, that is, multiple carriers. The resources belong to the same cell management, and the multi-carrier capability user equipment (UE: User Equipment) can simultaneously transmit by using two carrier frequencies, thereby increasing the maximum transmission rate of the user. In this case the primary carrier is the broadcast channel or the carrier on which the control channel is located.

The other is that a cell still works on one frequency, but can communicate through cells, that is, the UE simultaneously uses the radio resources of multiple cells to perform data transmission, and also achieves that the UE uses multiple carriers for transmission and increases users. The purpose of the highest transfer rate. In this case, the primary carrier cell is the cell in which the UE receives the broadcast channel or the control channel.

In the research on the prior art, the inventors have found that: Since the existing radio resource allocation methods in the high-speed data radio access network are all based on single carrier, the user equipment with multi-carrier capability cannot be obtained in the multi-carrier cell. Multi-carrier resources.

Summary of the invention

The embodiments of the present invention provide a resource allocation method and apparatus, which can enable a multi-carrier resource to obtain multi-carrier resources, so that system resources can be effectively utilized.

The purpose of the embodiment of the present invention is achieved by the following technical solutions:

A resource allocation method applied to a high-speed data wireless access network includes:

Allocating at least two carrier resources for user equipments with multi-carrier capability;

Sending information of the at least two carrier resources to the user equipment.

A resource allocation device includes:

And an allocating unit, configured to allocate at least two carrier resources to the user equipment with multi-carrier capability, and a sending unit, configured to send information about the at least two carrier resources.

It can be seen from the foregoing technical solutions provided by the embodiments of the present invention that, when the user equipment has multi-carrier capability, the user equipment can allocate at least two carrier resources, so that the user equipment with multi-carrier capability can Obtain multi-carrier resources and make effective use of system resources. DRAWINGS

1 is a flowchart of Embodiment 1 of a resource allocation method according to an embodiment of the present invention;

2 is a signaling flowchart of Embodiment 2 of a resource allocation method according to an embodiment of the present invention;

FIG. 3 is a signaling flowchart of Embodiment 3 of a resource allocation method according to an embodiment of the present invention; FIG. 6 is a signaling flowchart of Embodiment 6 of a resource allocation method according to an embodiment of the present invention; FIG. 7 is a structural diagram of Embodiment 1 of a resource allocation apparatus according to an embodiment of the present invention;

FIG. 8 is a structural diagram of Embodiment 2 of a resource allocation apparatus according to an embodiment of the present invention;

FIG. 9 is a structural diagram of an embodiment of a resource allocation system according to an embodiment of the present invention.

detailed description

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

The resource allocation method provided by the embodiments of the present invention is mainly applied to a high-speed data radio access network, including a high-speed data radio access network (HSPA), an evolved high-speed data radio access network (HSPA+), and the like. ^ - , , 1 , , ^ — , , , , 1 , Step 101, allocate at least two carrier resources for UEs with multi-carrier capability.

The at least two allocated carrier resources may be the carrier resources in the multi-carrier cell where the UE is located, or may be the carrier resources of the at least two coordinated cells, where the at least two coordinated cells include the cell where the UE is located, that is, the UE The cell at the location is also one of the cooperative cells;

The multi-carrier cell may be allocated to the UE in the cell, and the multi-carrier cell may be a cell with normal multi-carrier capability. For example, the UE may be allocated radio resources on the at least two carriers, so that the UE can simultaneously transmit data on the two carriers, where at least two carrier resources may be at least two downlink carriers, one uplink carrier, and one downlink carrier. , at least two uplink carriers; and the case where both uplink and downlink are at least two carriers.

Of course, the cell may also allocate single carrier resources to the UE according to the current cell load selection, and these resources may be on any carrier under the control of the multi-carrier cell.

If the UE is within the coverage of the coordinated cell, the UE may be allocated resources of the at least two coordinated cells on the primary carrier cell, so that the UE may obtain the multi-carrier resource from the at least two coordinated cells, so that the UE can be at least two at the same time. Data transmission is performed on a cell, where the primary carrier cell refers to a cell in which the UE receives the broadcast channel or a cell in which the control channel is located, and the like; at least two coordinated cells may be The downlink of at least two coordinated cells, the uplink of one coordinated cell (the cell where the uplink carrier is located or the cell where the control channel is located is the primary carrier cell); or the uplink of at least two coordinated cells and the downlink of one coordinated cell (downlink carrier) The cell in which the cell or control channel is located is the primary carrier cell; and the case where both the uplink and downlink are at least two coordinated cells.

Step 102: Send information of at least two carrier resources to the UE.

After the multi-carrier resource is allocated to the UE, the information about the carrier resource can be sent to the UE, so that the UE can know which resources it has acquired; specifically, it can be established by the radio bearer (Radio Bearer Setup), and the radio load Bearer Reconfiguration), Radio Bearer Release, Transport Channel Reconfiguration, Physical Channel Reconfiguration, etc. RRC: Radio Resource Control message informs the UE The information of the corresponding carrier resource may be added to the message, that is, the specific radio resource is allocated to which carrier (carrier number or frequency, and the used scrambling code, etc.) or whether multi-carrier resources are allocated, etc.; The added message carries information about the allocation of resources.

As can be seen from the above, when the UE has multi-carrier capability, the UE can allocate at least two carrier resources to the UE, so that the UE with multi-carrier capability can obtain multi-carrier resources, improve the maximum transmission rate of the UE, and make system resources. Get effective use.

In addition, it is necessary to allocate at least two carrier resources to the UE when the UE supports the multi-carrier capability. Therefore, before the UE is allocated at least two carrier resources, the method further includes:

Obtain the multi-carrier capability of the UE.

Specifically, the multi-carrier capability of the UE may be acquired when the RRC connection is established with the UE, and the UE may add an indication of the multi-carrier capability in the UE capability indication of the RRC message, specifically, the UE Capability Information message and different access technologies. An existing message such as an Inter Rat Handover Info message and an RRC Connection Setup Complete message carries an indication of multi-carrier capability, and may also carry the indication in a new message; The multi-carrier capability of the UE may be an uplink dual carrier, a downlink single carrier, or an uplink single carrier, a downlink dual carrier, or an uplink dual carrier, a downlink dual carrier, and the like.

When the cell in which the UE is located is a multi-carrier cell, if the cell has at least two uplink carrier resources, the information (frequency, scrambling code information, etc.) of at least two uplink carriers of the cell in which the UE is located may be broadcast in advance; The UE may select to access at one frequency among at least two uplink carriers, and initiate an RRC connection request including an indication of its own multi-carrier capability.

Since only a multi-carrier capable cell can allocate multi-carrier resources to the UE, the multi-carrier capability can be normal multi-carrier capability and/or multi-cell cooperation capability, and thus, before allocating at least two carrier resources for user equipments having multi-carrier capability Can further include:

It is determined whether the cell has multi-carrier capability; only when the cell has multi-carrier capability, at least two carrier resources can be allocated to the UE. Wherein, after determining that the cell has multi-carrier capability, the type of multi-carrier capability can be further determined.

Specifically, an identifier bit may be added to the cell capability indication set in advance, where the identifier bit is used to indicate whether the cell has a multi-carrier capability and a supported multi-carrier capability type. Therefore, when determining whether the cell has multi-carrier capability, the identifier may be preset. The multi-carrier capability indicator of the cell carried by the cell capability indication set identifies the type of multi-carrier capability of the multi-carrier capability type cell corresponding to the identifier, that is, the cell can be judged according to the identifier to determine whether the cell has multi-carrier capability, and The type of the multi-carrier capability of the cell is determined, and the identifier bit may be a multi-carrier capability indication identifier of the cell.

In the network construction, the information about the multi-carrier capability of the cell can be recorded on the server, and the server configuration can be operated and maintained through operation, administration, and maintenance (OAM), thereby determining whether the cell has multi-carrier capability. The information of the multi-carrier capability of the cell may be determined on the server, and the information of the multi-carrier capability includes a type of multi-carrier capability, and the types of the multi-carrier capability include a common multi-carrier capability and a multi-cell cooperation capability.

When determining that the cell has the normal multi-carrier capability, allocate at least two carrier resources for the UE having the multi-carrier capability in the cell; and when determining that the cell has the multi-cell cooperation capability, the at least two coordinated cells including the cell have A multi-carrier capable UE allocates at least two carrier resources.

When the cell in which the UE is located is a coordinated cell, the cell needs to broadcast its own cooperation capability, and related information of the coordinated cell, including the scrambling code and frequency used by the cell; wherein, when there is only one uplink carrier, the UE can only be uplinked. The cell in which the carrier is located (the primary carrier cell) initiates a connection request.

Further, if the cell in which the UE is located does not belong to the current RNC control, but is controlled by another RNC, before determining whether the cell has the multi-carrier capability, the method further includes: acquiring the capability of the cell, where the cell can be obtained through the cell capability exchange procedure. The capability of the cell to determine whether the acquired cell is multi-carrier capability, that is, whether the cell is a multi-carrier cell with normal multi-carrier capability, or has A coordinated cell of multi-cell cooperation capabilities.

At the same time, because the carrier resources of the cell are limited, and the QoS (Quality of Service) requirements of the different services requested by the UE are different, the QoS information of the service requested by the UE and/or may be acquired before the carrier resources are allocated to the UE. Or the load condition of the cell, the load condition of the cell may be a load condition of the multi-carrier cell or a load condition of multiple coordinated cells, and further determining whether to allocate multi-carrier resources for the UE according to the QoS information and/or the load condition of the cell, and assigning several Carrier resources or resources of several coordinated cells, which carrier resources or resources of several coordinated cells are allocated.

For example, when the QoS requirement corresponding to the service requested by the UE is high, at least two carrier resources or resources of at least two coordinated cells may be allocated to the UE as much as possible; or when the load of the cell is not high, at least two UEs may be allocated. Carrier resources or resources of at least two cooperating cells.

When the cell is a multi-carrier cell, after the UE is allocated at least two carrier resources, the allocated at least two carrier resources may be managed, so that the carrier resources can be fully utilized; the specific management may be according to specific needs. Operations such as adding, deleting, modifying, and updating carrier resources; may be management of a wireless link or a radio bearer, and the management of the radio link may specifically be a radio link audit process, a radio link establishment, a radio link increase, The deletion of the wireless link, the reconfiguration of the wireless link includes synchronization or non-synchronization, activation of the wireless link, pre-emption of the wireless link, parameter upgrade of the wireless link, etc.; management of the radio bearer includes establishment and modification of the radio bearer , reconfiguration, release, or reconfiguration of transport channels and physical channels.

When the cell is a coordinated cell, if the downlink resources of the at least two coordinated cells are allocated to the UE, the allocated at least two coordinated cell resources may be managed, so that the carrier resources can be fully utilized; the specific management may be based on specific The operations of adding, deleting, modifying, and updating the radio resources on the coordinated cell are required; the management of the radio link or the radio bearer may be performed, and the management of the radio link may specifically be a radio link audit process and a radio link establishment. , radio link addition, radio link deletion, radio link reconfiguration including synchronization or non-synchronization, activation of radio link, pre-emption of radio link, parameter upgrade of radio link, etc.; management of radio bearer includes Establishment, modification, reconfiguration, release of radio bearers, or reconfiguration of transport channels and physical channels. The resource allocation process of the embodiment involves a source radio network controller (SRNC: Source RNC) and a target radio network controller (DRNC: Drift RNC), and the embodiment includes: Step 201: The SRNC acquires a common multi-carrier capability or a multi-cell cooperation capability and a load situation of the target cell to be established on the DRNC.

The SRNC can obtain the common multi-carrier capability or multi-cell cooperation capability of the target cell by the following method:

Specifically, the SRNC may send an Information Exchange Initiation Request message to the DRNC. After receiving the Information Exchange Initiation Request information exchange initialization request message, the DRNC sends an information report to the SRNC. And the information report message carries an indication that the cell has the normal multi-carrier capability or the multi-cell cooperation capability, where the normal multi-carrier capability indication of the cell may be fixedly represented as a dual-carrier cell or a downlink dual-carrier cell, or may be separately Indicates the number of uplink and downlink carrier resources; the indication of the multi-cell cooperation capability indicates whether the cell supports cell cooperation, and information of a cell that can cooperate with it, such as a cell identifier;

The normal multi-carrier capability of the cell can be transmitted by increasing the number of carriers in the capacity information of the cell, or by other information units (IE), for example, an information type item in an information type. Adding a type for transmission may be called a multi-carrier cell capability, and the multi-carrier capability of the cell may be triggered by an on-demand or a capability update trigger. It can be a periodic report, etc. The capacity information IE of the cell provided by the embodiment of the present invention is as shown in Table 1:

Table 1

Information unit name Required or not Value range Information unit type and remarks ( Semantics

( IE/Group ( Presence ) ( Range ) Reference Value Description ) Name ) ( IE Type and

Reference )

Cell uplink capacity Required (M ) Integer (1..100,...)

Quantity (Uplink Cell

Capacity Class

Value )

The downlink capacity of the cell must be an integer ( INTEGER )

Quantity ( Downlink Cell (1- 100,...) Capacity Class

Value )

The number of cell carriers must be enumerated. Multi-carrier must be (C-MC-Cell) (ENUMERATED)

Number ) ( 1.2.3.4 )

Further, if the carrier is asymmetric, the number of each carrier can also be indicated separately, as shown in Table 2:

Table 2

In addition to acquiring the multi-carrier capability of the cell through the cell capability exchange procedure, it is also possible to add one bit in the cell capability indication set to indicate whether the cell has multi-carrier capability or the like.

The communication capability of the cell can be transmitted by adding one type to the information type Item in the information type of the information exchange initial request, and the added type can be more Cooperation Capability. The multi-cell collaboration capability of the cell may be triggered by an on-demand, a capability update trigger, or a periodic report.

For example, the Cooperation Capability Information Value may be added in the INFORMATION EXCHANGE INITIATION RESPONSE or the Requested Data Value in the information report message, and the specific format of the cooperative cell capability information may be as shown in Table 3:

table 3

Required enumeration of cells (cooperate, not collaborative)

Collaboration can be ENUMERATED (cooperation

Capable, non-cocoperation capable)

>Collaboration in having a community (1 most

When the community standard collaboration ability is great Knowledge (ID) Required (C-if for community

Cooperative number)

Capable

The C-if cooperation capable indicates that the condition is mandatory, and the specific indication is mandatory when the cell has the cell cooperation capability.

The multi-carrier capability of the cell and/or the multi-cell collaboration capability may also configure the server through operations such as OAM during network construction.

Step 202: Establishing a wireless link.

The SRNC is based on the capability of the cell to establish a radio link (such as whether it has normal multi-carrier capability or whether it has cell cooperation capability, etc.), the current load situation (the load situation may be the total load condition of the multi-carrier cell or the uplink and downlink carriers). The respective load, which may be the load of each coordinated cell that can cooperate with each other, the multi-carrier capability of the UE (which can be acquired when the RRC connection is established), and the like, determine that the UE is allocated on a single carrier or a certain carrier. The radio link resource; wherein, if the UE has a radio link with the SRNC at this time, a radio link may be added.

If the cell in which the UE is located is a multi-carrier cell, it is necessary to increase the carrier information allocated for each channel in the radio link setup message, that is, which carrier is specifically allocated to each channel (carrier number or frequency, and scrambling code used) Or whether it is allocated on multiple carriers, etc. The establishment of the wireless link can be transmitted to the DRNC through the Iur interface. If a UE that does not support multi-carrier requests a resource in a multi-carrier cell, the SRNC allocates the radio resource of the UE to a certain carrier, which may be a primary carrier, and the primary carrier is a carrier where the broadcast channel is located. Wherein, if the radio link assignment message does not contain carrier information, it is the primary carrier by default, and the radio link assignment message is sent when the radio link is established or the radio link is increased.

If the cell where the UE is located is a coordinated cell, the cell type information of the corresponding wireless link needs to be added in the radio link setup message. The cell type may be divided into a primary carrier cell, a secondary carrier cell (only downlink cells) or a non-cooperative cell. Moreover, since the original high-speed downlink shared channel can only be established on the serving cell, each UE can only utilize the high-speed downlink shared channel of the serving cell, and the current multi-carrier capable UE can utilize the high-speed downlink shared channel of multiple coordinated cells. Therefore, after the UE is allocated the downlink shared channel of the at least two coordinated cells, the existing means cannot allocate the information of the high-speed downlink shared channel to the UE on the secondary carrier cell, and the wireless link in the wireless link management message can be used at this time. Add information about the high-speed downlink shared channel in the RL Information field ( Optional), High Speed Downlink Shared Channel Radio Network Temporary Identity (HRNTI: HS-DSCH-RNTI), optional continuous packet-connected discontinuous reception and discontinuous transmission information (Continuous Packet Connectivity DTX-DRX Information), optional The continuous packet-connected high-speed shared control channel information (Continuous Packet Connectivity HS-SCCH less Information) may also include optional setting information of the corresponding high-speed shared control channel, as shown in Table 4:

Table 4

Wherein, C-InfoHSDSCH indicates that the condition is mandatory, specifically indicating that the information element exists when the high speed downlink shared channel information exists.

The related setting information of the high speed shared control channel may include a scrambling code and a power offset used by the high speed control channel. The fourth column in the table is a reference to the corresponding section in 3GPP TS 25.433.

Of course, the high-speed downlink shared channel information of the secondary carrier can also be separately listed, as shown in Table 5:

table 5

The C-InfoHSDSCH indicates that the condition is mandatory, and specifically indicates that the information element exists when the secondary carrier cell high-speed downlink shared channel information (HS-DSCH Information) exists.

The related setting information of the high speed shared control channel may include the scrambling code and power offset used by the high speed control channel.

Step 203: The SRNC notifies the UE of the result of the carrier resource allocation.

The 1" column informs the UE through RRC messages such as Radio Bearer Setu, Radio Bearer Reconfiguration, Radio Bearer Release, Transport Channel Reconfiguration, Physical Channel Reconfiguration, etc., and may add corresponding carrier resource information to these messages, that is, specific radio resource allocation to Which carrier (carrier number or frequency, and the scrambling code used) or whether it is allocated on multiple carriers, the frequency or carrier number used for each carrier on the multi-carrier and the scrambling code used; etc.; On multiple coordinated cells, it is necessary to indicate the assigned coordinated cell. Type and/or cell ID.

Step 204: After establishing a wireless link, the SRNC can manage the wireless link as needed. The messages involved in the corresponding radio link management process also need to be modified accordingly to modify the modifications established with the radio link; such as the resource radio link audit procedure, the increase of the radio link, the deletion of the radio link, and the reconfiguration of the radio link. Including synchronous or asynchronous, activation of wireless link, pre-occupation of wireless link, parameter upgrade of wireless link, etc.; if it involves the management of RL of multi-carrier cell, it needs to increase the corresponding carrier information (carrier number or frequency). For example, if the corresponding operation of the resources on each carrier is to be described; if it is the management of the RL involving multi-cell cooperation, the corresponding cell type information needs to be added, and the downlink shared channel can be operated, and the The cell is established with the wireless link, and the message transmitted on the Iur interface also needs to be modified accordingly.

As can be seen from the above, when acquiring the multi-carrier capability of the UE, the UE allocates at least two carrier resources or resources of at least two coordinated cells to the UE, so that the UE with multi-carrier capability can obtain multi-carrier resources and improve The highest transmission rate of the UE enables the system resources to be effectively utilized. Further, the resources of the allocated multi-carrier cell or the resources of the multi-cell can be managed, so that the carrier resources can be further fully utilized. The resource allocation process of the embodiment involves SRNC, NB and CN, and the embodiment includes:

Step 301: The cell broadcasts its own multi-carrier capability.

If it is a multi-carrier cell, the indication of the multi-carrier capability may be added to the cell broadcast message, including the number of supported carriers, the frequency of each carrier and the scrambling code information used, and the sequence number corresponding to the carrier. The cell generally broadcasts its own multi-carrier capability when it has at least two uplink dual carriers, but does not exclude the case where it is broadcast when there is only one uplink carrier and at least two downlink carriers. If it is a coordinated cell, information about the coordinated cell needs to be broadcast, which may include information such as the ID of the coordinated cell, the frequency used, and the scrambling code.

Step 302: The SRNC obtains multi-carrier capability of the UE.

The UE may add an indication of the multi-carrier capability in the UE capability indication of the RRC message, specifically, the UE Capability Information, the Inter Rat Handover Info, and the RRC Connection Setup (RRC Connection). Setup Complete) is added in RRC messages. Specifically, the corresponding indication may be added to the cell of the radio access capability of the UE, and the indication provided by the embodiment of the present invention is as shown in Table 6:

Table 6

Multi-carrier support (Multi-Carrier optional enumeration if multiple REL-8 is not supported)

Support ) (TRUE) carrier, this IE is not

Exist

Or as shown in Table 7:

Table 7

Multi-carrier capability Optional enumeration If multiple REL-8 is not supported

(TRUE) carrier, this IE is not

Exist

>Number of supported carriers Required Integer

(1,2,3,4)

Or as shown in Table 8:

Table 8

(TRUE) carrier, this IE is not

Exist

>Support the number of uplink carriers. Required integer

(1,2,3,4)

>Support the number of downlink carriers. Required Integer

(1,2,3,4)

The multi-carrier capability cell in Table 8 can be agreed to support downlink dual-load uplink single-load, uplink dual-load downlink single-load, or both uplink and downlink.

The foregoing multi-carrier capability may be the number of carriers that the UE can support when accessing the multi-carrier cell. The multi-carrier capability may also be the number of cells that the UE can access simultaneously when the UE accesses the cooperative cell.

Step 303: A radio access bearer (RAB: Radio Access Bearer) establishes a process.

Specifically, the non-access stratum (NAS: Non Access Stratum) message core of the UE may be included. The heart network performs RAB allocation according to the service requested by the UE, and the SRNC obtains the QoS of the UE application service according to the RAB request sent by the core network.

Step 304: Establishing a wireless link. For details, refer to step 202.

Step 305: The SRNC notifies the UE of the result of the carrier resource allocation; the specific execution is performed by referring to step 203.

Step 306: The SRNC can manage the wireless link as needed; the specific execution is performed by referring to step 204.

In step 304 to step 306, the wireless link and the related measurement control message are transmitted, and the wireless link management message can be directly transmitted to the NB through the Iub interface.

As can be seen from the above, when acquiring the multi-carrier capability of the UE, the embodiment allocates at least two carrier resources or resources of at least two coordinated cells to the UE, so that the UE with multi-carrier capability is in the multi-carrier cell or the multi-cell. Cooperating to obtain multi-carrier resources, improve the maximum transmission rate of the UE, and make effective use of system resources; further, the resources of the allocated multi-carrier cell or the resources of multiple coordinated cells can be managed, so that the carrier resources can be further obtained. Take advantage of. The resource allocation process of the embodiment involves SRNC, DRNC and NB, and the embodiment includes:

Step 401: The source RNC sends a relocation request to the target RNC.

The relocation request may be forwarded through the Iu interface through the Iur interface or via the core network node (MSC or SGSN), and the relocation request may include the multi-carrier capability of the UE and the QoS of the RAB that needs to be established for the UE; the multi-carrier capability of the UE may be The number of carriers that the UE can support when accessing the multi-carrier cell, or the number of cells that the UE can access simultaneously when the UE accesses the coordinated cell.

Step 402: Establishing a wireless link. For details, refer to step 202.

Step 403: After the radio link is established, the target RNC sends a relocation response to the source RNC.

The message may be sent to the source RNC through the Iur interface, or forwarded to the source RNC through the CN node through the Iu interface, and the response message may include a new radio network temporary identifier (RNTI) allocated by the UE in the target cell, and the configuration of the used radio bearer. information.

Step 404: The SRNC notifies the UE of the result of the carrier resource allocation; the specific execution is performed by referring to step 203.

Step 405: The target RNC can manage the wireless link as needed; Step 204 is performed.

As can be seen from the above, when the UE has the multi-carrier capability, the UE allocates at least two carrier resources to the UE, so that the multi-carrier capable UE can obtain multi-carrier resources under the cooperation of the multi-carrier cell or the multi-cell. The maximum transmission rate of the UE is increased, and the system resources are effectively utilized. The resources of the allocated multi-carrier cell or the radio resources of the multi-cell can be further managed, so that the carrier resources can be further fully utilized. The resource allocation process of the embodiment involves NB+ and CN, and the embodiment includes:

Step 501: The cell broadcasts its own multi-carrier capability.

In the case of a multi-carrier cell, an indication of multi-carrier capability may be added to the cell broadcast message, and the indication may include the number of supported carriers, the frequency of each carrier and the scrambling code information used, and the sequence number corresponding to the carrier. The cell generally broadcasts its own multi-carrier capability when it has at least two uplink dual carriers, but does not exclude the case where it is broadcast when there is only one uplink carrier and at least two downlink carriers. If it is a coordinated cell, the information of the coordinated cell needs to be broadcast, and may include the ID of the coordinated cell, the frequency used, and the scrambling code.

Step 502: A connection between the UE and the NB+ is established.

NB+ is a network entity that is merged by the NB and the RNC in the HSPA+ network; for details, refer to step 302;

Step 503: The RAB is established. For details, refer to step 303.

Step 504, allocation of carrier resources; the specific process may be performed by referring to step 304.

Since NB+ is a network entity formed by combining NB and RNC, there is no need to transmit messages on the Iub interface, and carrier resources can be allocated directly within NB+.

Step 505: The NB+ notifies the result of the carrier resource allocation of the UE. For details, refer to step 305.

Step 506: The NB+ manages the carrier resources. For details, refer to step 306.

As can be seen from the above, when acquiring the multi-carrier capability of the UE, the embodiment allocates at least two carrier resources or resources of at least two cells to the UE, so that the UE with multi-carrier capability cooperates in multi-carrier cell or multi-cell. The multi-carrier resource can be obtained, the maximum transmission rate of the UE is improved, and the system resources are effectively utilized; further, the resources of the allocated multi-carrier cell or the resources of the multi-cell can be further utilized. The source is managed to enable further utilization of carrier resources. The resource allocation process of the embodiment involves source NB+ and target NB+, and the embodiment includes:

Step 601: The source NB+ sends a relocation request to the target NB+. For details, refer to step 401.

Step 602: The target NB+ performs allocation of carrier resources. For details, refer to step 504. Step 603: The target NB+ sends a relocation response to the source NB+. For details, refer to step 403.

Step 604: The source NB+ notifies the result of the carrier resource allocation of the UE. For details, refer to step 505.

Step 605: The target NB+ manages the carrier resources. For details, refer to step 506. As can be seen from the above, when acquiring the multi-carrier capability of the UE, the embodiment allocates at least two carrier resources or resources of at least two cells to the UE, so that the UE with multi-carrier capability cooperates in multi-carrier cell or multi-cell. The multi-carrier resource can be obtained, the highest transmission rate of the UE is improved, and the system resources are effectively utilized. Further, the resources of the allocated multi-carrier cell or the resources of the multi-cell can be managed, so that the carrier resources can be further fully utilized.

The embodiment of the invention further provides a resource allocation device;

FIG. 7 is a diagram of a structure of an embodiment of a resource allocation apparatus according to an embodiment of the present invention, including: an allocating unit 701, configured to allocate at least two carrier resources for a UE having multi-carrier capability; wherein, at least two carrier resources may be one At least two carrier resources in the multi-carrier cell may also be carrier resources of at least two coordinated cells;

The sending unit 702 is configured to send information of at least two carrier resources.

As shown in the above, when the UE has the multi-carrier capability, the UE allocates at least two carrier resources to the UE, so that the UE with multi-carrier capability can obtain the multi-carrier resource and improve the maximum transmission rate of the UE, so that the system Resources are used effectively.

Further, the resource allocation apparatus provided by the embodiment of the present invention may further include:

a determining unit, configured to determine, before the allocating unit 701 allocates at least two carrier resources for the multi-carrier capable UE, whether the cell in which the user equipment is located has multi-carrier capability; a type determining unit, configured to determine a multi-carrier capability type of the cell when the determining unit determines that the cell has multi-carrier capability;

At this time, the allocating unit 701 is configured to: when the determining unit determines that the cell has the normal multi-carrier capability, allocate at least two carrier resources to the user equipment in the cell; and when the determining unit determines that the cell has multi-cell cooperation capability, includes the cell At least two carrier resources are allocated to the user equipment in at least two coordinated cells.

Further, the resource allocation device provided by the embodiment of the present invention may further include:

An obtaining unit, configured to acquire QoS information of a service requested by the UE and/or a load condition of the cell before the allocating unit 701 allocates at least two carrier resources for the multi-carrier capable UE; wherein, the load condition of the cell may be multi-carrier The load condition of the cell or the load condition of multiple coordinated cells;

At this time, the allocating unit 701 is configured to allocate at least two carrier resources to the UE according to the QoS information and/or the load condition of the cell.

8 is a structure of a second embodiment of a resource allocation apparatus according to an embodiment of the present invention, including: an obtaining unit 801, configured to acquire QoS information of a service requested by a UE, and a load condition of a cell; and a determining unit 802, configured to determine a UE Whether the cell at the location has multi-carrier capability;

The type determining unit 803 is configured to determine, when the determining unit 802 determines that the cell has multi-carrier capability, determine a multi-carrier capability type of the cell.

The allocating unit 804 is configured to: when the determining unit 803 determines that the cell has the normal multi-carrier capability, allocate at least two carrier resources to the user equipment in the cell according to the QoS information and/or the load condition of the cell; and determine, by the determining unit 803, that the cell has When the multi-cell cooperation capability is performed, the user equipment is allocated at least two carrier resources in the at least two coordinated cells including the foregoing cell according to the foregoing QoS information and/or the load condition of the cell;

The sending unit 805 is configured to send the at least two carrier resources allocated by the allocating unit 804, and the management unit 806 is configured to perform, after the transmitting unit 805 sends the information of the at least two carrier resources, perform at least two carrier resources allocated by the allocating unit 804. management.

As can be seen from the above, when acquiring the multi-carrier capability of the UE, the UE allocates at least two carrier resources to the UE, so that the UE with multi-carrier capability can obtain multi-carrier resources in the multi-carrier cell, and improve the maximum of the UE. Transmission rate, so that system resources can be effectively utilized; The resources of the allocated multi-carrier cell or the resources of the multi-cell are managed, so that the carrier resources can be further fully utilized.

Further, the resource management apparatus provided by the embodiment of the present invention may further include: a bearer establishing unit, configured to establish an RAB with the CN before the allocating unit allocates at least two carrier resources to the UE.

The resource management device provided by the embodiment of the present invention may be a network entity such as an RNC or an NB+.

The embodiment of the present invention further provides a communication system. FIG. 9 depicts the structure of an embodiment of a communication system, including a resource allocation device 901 and a user equipment 902, where:

The resource allocation device 901: acquires multi-carrier capability of the user equipment; allocates at least two carrier resources for the user equipment; and sends information of the at least two carrier resources to the user equipment 902.

It will be understood by those skilled in the art that all or part of the steps of implementing the foregoing embodiments may be performed by a program to instruct related hardware, and the program may be stored in a computer readable storage medium. , including the following steps:

The above-mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

The resource allocation method, device and communication system provided by the embodiments of the present invention are described in detail above. The description of the above embodiments is only for helping to understand the method and the idea of the present invention; meanwhile, it is for those skilled in the art. The present invention is not limited by the scope of the present invention.

Claims

Rights request

A resource allocation method for a high speed data radio access network, characterized in that:

The resource allocation method according to claim 1, wherein before the allocating the at least two carrier resources to the user equipment having the multi-carrier capability, the method further comprises: determining a multi-carrier capability type supported by the cell in which the user equipment is located ;

If the cell has a common multi-carrier capability, the allocating the at least two carrier resources for the user equipment having the multi-carrier capability includes: allocating at least two carrier resources to the user equipment in the cell; and/or,

If the cell has multi-cell cooperation capability, the allocating the at least two carrier resources for the user equipment having the multi-carrier capability includes: allocating at least two to the user equipment in at least two coordinated cells including the cell Carrier resources.

The resource allocation method according to claim 2, wherein determining a multi-carrier capability type supported by the cell in which the user equipment is located includes:

Determining a multi-carrier capability type corresponding to the multi-carrier capability indication identifier of the cell, where the identifier is carried by the preset cell capability indication set; or

Determining a multi-carrier capability type corresponding to information of the multi-carrier capability of the cell held by the server; or

The multi-carrier capability type supported by the cell is determined by a cell capability exchange procedure.

The resource allocation method according to claim 2 or 3, wherein the allocating at least two carrier resources to the user equipment in the area is:

Sending a relocation request to the radio network controller corresponding to the cell, where the relocation request triggers the radio network controller to allocate at least two carrier resources to the user equipment, where the relocation request includes the user equipment Multi-carrier capability information;

Receiving a relocation response from the radio network controller, the relocation response including information of the at least two carrier resources.

The resource allocation method according to claim 1, wherein the method further comprises: Acquiring the quality of service information of the service requested by the user equipment and/or the load condition of the cell; the allocating the at least two carrier resources for the user equipment having the multi-carrier capability comprises: according to the quality of service information and/or the load of the cell In the case, the at least two carrier resources are allocated to the user equipment.

The resource allocation method according to claim 1, wherein the information of the at least two carrier resources is sent to the user equipment, and further includes:

The at least two carrier resources are managed.

The resource allocation method according to claim 6, wherein the managing the at least two carrier resources comprises:

Performing an adding operation on the at least two carrier resources; or performing a deleting operation on the at least two carrier resources; or performing an operation on the at least two carrier resources; or performing the at least two carrier resources Update operation.

The resource allocation method according to claim 1, 2, 2, or 3, or 5, wherein the at least two carrier resources comprise:

At least two downlink carriers and one uplink carrier; or

One downlink carrier and at least two uplink carriers; or

At least two downlink carriers and at least two uplink carriers.

9. A resource allocation device, comprising:

The resource allocation apparatus according to claim 9, further comprising: a determining unit, configured to determine whether the cell in which the user equipment is located has multi-carrier capability;

a type determining unit, configured to determine, when the determining unit determines that the cell has multi-carrier capability, determine a multi-carrier capability type of the cell;

The allocating unit, configured to: when the type determining unit determines that the cell has a common multi-carrier capability, allocate at least two carrier resources to the user equipment in the cell; and/or determine a cell in the determining unit When there is multi-cell cooperation capability, at least two carrier resources are allocated to the user equipment in at least two coordinated cells including the cell.

The resource allocation device according to claim 9 or 10, further comprising: An obtaining unit, configured to obtain quality of service information of the service requested by the user equipment and/or a load condition of the cell;

The allocating unit is further configured to allocate at least two carrier resources to the user equipment according to the quality of service information and/or the load condition of the cell.

The resource allocation apparatus according to claim 9 or 10, further comprising: a management unit, configured to: after the sending unit sends the information of the at least two carrier resources, the at least two carrier resources Manage.