CN101483890B

CN101483890B - Method for data transmission under non-CELL-DCH state in TD-SCDMA multi-carrier system

Info

Publication number: CN101483890B
Application number: CN2008100018508A
Authority: CN
Inventors: 张志新; 陈慧
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2008-01-11
Filing date: 2008-01-11
Publication date: 2012-07-18
Anticipated expiration: 2028-01-11
Also published as: CN101483890A

Abstract

The invention discloses a data transmission method under a non CELL-DCH state in a TD-SCDMA multi-carrier system, wherein, a radio network controller RNC allocates Iub port public medium access control MAC flow according to the carrier frequency of a user equipment, namely, building a corresponding relation between the public MAC flow and the carrier frequency, then the downstream data of the UE is sent to a base station NodeB through the public MAC flow corresponding to the resident carrier frequency of the UE, and the NodeB sends the downstream data to the UE according to the corresponding relation of the public MAC flow and the carrier frequency through the resident carrier frequency of the UE. The method of the invention has concise process and small interface change, and is easy to be understood, meanwhile, the scheme of the invention has down compatibility to protocol versions, thus being easy for implementation.

Description

The method of transfer of data under the non-CELL-DCH state in a kind of TD-SCDMA multicarrier system

Technical field

The present invention relates to moving communicating field, relate in particular in a kind of TD-SCDMA (TD SDMA access) multicarrier system the method for transfer of data under non-CELL-DCH (cell private channel) state.

Background technology

Along with the sustainable development of mobile communication technology, the mobile subscriber constantly proposes new requirement for data transfer throughput, wireless access speed.Introduce HSPA+ (High Speed Packet Access Plus; The evolution that high-speed packet inserts) afterwards; Mobile subscriber's transmission channel no longer is original DCH (Dedicated Channel; But HS-DSCH (High-Speed Downlink Shared Channel, high speed descending sharing channel) at a high speed dedicated channel).UE (User Equipment; Subscriber equipment) in the access; RNC (Radio Network Controller; Radio network controller) for the H-RNTI (HS-DSCH Radio Network Temporary Identifier, the Radio Network Temporary Identifier of HS-DSCH) of a special use of each UE configuration, data is sent to Node B (base station) through public HS-DSCH.Because this channel is common signal channel, the MAC on the Node B (Media Access Control, medium access control)-ehs entity is discerned through the H-RNTI in the Frame and is the data of which UE and handles.Adopt enhancing Cell_FACH (cell forward access channel) technology to improve power system capacity, reduced the connecting system time delay.

(a plurality of frequencies have disposed HS-PDSCH (High Speed Physical Downlink Shared Channel for multi-frequency-point community; High speed down sharing physical channel) information); Node B receives from after the public HS-DSCH exclusive data; Though can discern UE through H-RNTI, can't determine to use which carrier frequency to send the downlink data of this UE.

Summary of the invention

The technical problem that the present invention will solve provides in a kind of TD-SCDMA multicarrier system the method for transfer of data under the non-CELL-DCH state, can guarantee that NodeB sends to UE with data on correct carrier frequency.

In order to address the above problem; The invention provides in a kind of TD-SCDMA multicarrier system the method for transfer of data under the non-CELL-DCH state; Radio network controller (RNC) is pressed user equipment (UE) place carrier frequency configuration Iub mouth common medium access control MAC stream; Promptly set up the corresponding relation of public MAC stream and carrier frequency; Downlink data with said UE sends to base station NodeB through the corresponding public MAC stream of this UE institute resident carrier frequency then, and NodeB sends said downlink data to UE according to the corresponding relation of this MAC stream and carrier frequency on the carrier frequency of UE place.

Further; Said method also can have following characteristics; RNC sends the Physical Shared Channel reconfiguration request message to NodeB, and the public MAC stream of configuration below each carrier frequency in the Physical Shared Channel reconfiguration request message, NodeB receive to be set up the Iub mouthpiece according to configuration information after the said message and carry; And return Physical Shared Channel reprovision response message and give RNC, carry the Iub mouthpiece in the said response message and carry configuration information.

Further, said method also can have following characteristics, configuration one or more public MAC stream below each carrier frequency.

Further, said method also can have following characteristics, and RNC can be that the UE with HS-DSCH receiving ability disposes resident frequency through the radio resource control RRC signaling, and UE receives data on this frequency.

Further; Said method also can have following characteristics, and non-CELL _ DCH state comprises cell forward access channel CELL_FACH attitude, cell _ paging channel CELL_PCH attitude, idle IDLE attitude and UMTS land radio access web UTRAN Acceditation Area _ PCH URA_PCH attitude; Said public MAC stream comprises that the public MAC of the user data of transmission CELL_FACH attitude and IDLE attitude flows and the paging MAC stream of the user data of transmission CELL_PCH attitude and URA_PCH attitude.

The present invention only relates to and revises Iub mouth NBAP (Node B application port) signaling expanding and dispose public MAC and flow corresponding overloading cell frequently, does not influence original function, and flow process is succinct, and the interface change is little, easy to understand; The present invention program is backward compatible to protocol version, easy to implement simultaneously.

Description of drawings

Fig. 1 is the sketch map that RNC flows by the public MAC of carrier frequency configuration Iub mouth in the embodiment of the invention.

Fig. 2 is the flow chart that RNC transmits data in the embodiment of the invention to UE.

Embodiment

Design of the present invention is; RNC is when the HS-DSCH resource of configuration under the non-CELL _ DCH state; Press the public MAC stream of UE place carrier frequency configuration Iub mouth, promptly set up the corresponding relation of public MAC stream and carrier frequency, the downlink data with said UE sends to NodeB through the corresponding public MAC stream of this UE institute resident carrier frequency then; NodeB receives from after the data on the public MAC stream, on the carrier frequency of UE place, sends said downlink data to UE according to the corresponding relation of this MAC stream and carrier frequency.

Wherein, non-CELL _ DCH state comprises CELL_FACH attitude, CELL_PCH (cell paging channel) attitude, IDLE (free time) attitude and URA_PCH (UMTS land radio access web UTRAN Acceditation Area _ PCH) attitude; Said public MAC stream comprises that the public MAC of the user data of transmission CELL_FACH attitude and IDLE attitude flows and the paging MAC stream of the user data of transmission CELL_PCH attitude and URA_PCH attitude.

Transmit the HS-DSCH data instance down with CELL_FACH state in the TD-SCDMA system below, technical scheme of the present invention is done further to introduce in detail in conjunction with accompanying drawing and embodiment.

Embodiment

In the present embodiment; RNC transmits according to the HS-DSCH under which carrier frequency support CELL_FACH state in the sub-district and sets up public MAC stream; Need set up corresponding one or more public MAC stream at Iub interface to the carrier frequency of supporting the HS-FACH transmission carries; Make a public MAC stream correspond to a carrier frequency resource (carrier frequency can be set up a plurality of public MAC streams), NodeB can carry the data of distinguishing on it through different Iub mouth MAC stream and on which carrier frequency, send.

The practical implementation step of RNC configuration frequency point information is following:

Step 1, RNC set up four carrier sub-district CELL1 (frequency is respectively f1, f2, f3, f4) as shown in Figure 1,

baseband processing unit

1,2,3,4 is handled carrier frequency f1, f2, f3, f4 respectively;

Step 2; RNC sends the Physical Shared Channel reconfiguration request message according to configuration data to NodeB; Configuration frequency point information below the Common MAC Flow Information in the Physical Shared Channel reconfiguration request message (public MAC stream); Can dispose one or more Commom MAC Flow (public MAC stream) below each carrier frequency, message content is as shown in table 1:

Table 1

Step 3; After NodeB receives the Physical Shared Channel reconfiguration message; Set up the Iub mouthpiece according to configuration information and carry (Common MAC Flow1,2,3,4), MAC stream carries and is mapped to different baseband processing units respectively, and

baseband processing unit

1,2,3,4 can be configured in a baseband board; Also can be configured in the polylith baseband board, support NodeB baseband pool dynamic assignment;

Step 4, NodeB returns Physical Shared Channel reprovision response message and gives RNC, carries the Iub mouthpiece in the said response message and carries configuration information, concrete response message content such as table 2:

Table 2

After accomplishing resource distribution, just can the HS-DSCH data transmission service be provided to the UE under the CELL_FACH state.It is that the UE with HS-DSCH receiving ability disposes resident frequency that RNC can pass through RRC (Radio Resource Control, Radio Resource control) signaling, and UE just receives data on this frequency.

Detailed process is as shown in Figure 2:

Step 5, RNC is according to the packet of Iub mouth HS-DSCH Frame Protocol type 2 encapsulation UE, and according to UE resident carrier frequency select the corresponding public MAC stream of this carrier frequency to carry, packet is sent to NodeB;

Step 6, NodeB carries according to the MAC stream that receives the data place and selects corresponding carrier frequency that packet is sent to corresponding UE.

Certainly; The present invention also can have other numerous embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Be familiar with those of ordinary skill in the art and can make various corresponding changes and distortion, but these corresponding changes and distortion all should belong to protection range of the presently claimed invention according to the present invention.

Claims

1. the method for transfer of data under the non-CELL-DCH state in the TD-SCDMA multicarrier system; It is characterized in that; Radio network controller (RNC) is pressed user equipment (UE) place carrier frequency configuration Iub mouth common medium access control MAC stream; Promptly set up the corresponding relation of public MAC stream and carrier frequency; Downlink data with said UE sends to base station NodeB through the corresponding public MAC stream of this UE institute resident carrier frequency then, and NodeB sends said downlink data to UE according to the corresponding relation of this MAC stream and carrier frequency on the carrier frequency of UE place;

Wherein, The corresponding relation of setting up public MAC stream and carrier frequency comprises: RNC sends the Physical Shared Channel reconfiguration request message to NodeB; The public MAC stream of configuration below each carrier frequency in the Physical Shared Channel reconfiguration request message; NodeB receives and sets up the Iub mouthpiece according to configuration information after the said message and carry, and returns Physical Shared Channel reprovision response message and give RNC, carries the Iub mouthpiece in the said response message and carries configuration information.

2. the method for claim 1 is characterized in that:

Configuration one or more public MAC stream below each carrier frequency.

3. the method for claim 1 is characterized in that:

RNC can be that the UE with HS-DSCH receiving ability disposes resident frequency through the radio resource control RRC signaling, and UE receives data on this frequency.

4. the method for claim 1 is characterized in that:

Non-CELL _ DCH state comprises cell forward access channel CELL_FACH attitude, cell paging channel CELL_PCH attitude, idle IDLE attitude and UMTS land radio access web UTRAN Acceditation Area _ PCH URA_PCH attitude; Said public MAC stream comprises that the public MAC of the user data of transmission CELL_FACH attitude and IDLE attitude flows and the paging MAC stream of the user data of transmission CELL_PCH attitude and URA_PCH attitude.