CN101400112B - Data transmission method for paging state in TD-SCDMA system - Google Patents

Abstract

A data transmission method of paging state in TD-SCDMA system includes: a, configuring configuration information during transmission through a high-speed downlink shared channel HS-DSCH in a paging state by a universal mobile telecommunications system terrestrial radio access network UTRAN high-level configuration, wherein the configuration information informs user equipment UE in the paging state through cell system broadcast information or a special signaling, the configuration information comprises a paging indication channel PICH, a control channel HS-SCCH of the high-speed downlink shared channel and configuration information of a high-speed downlink shared physical channel HS-PDSCH, and the channels are all established on a cell main carrier; and B, the user equipment receives the information on the HS-DSCH channel in a discontinuous reception DRX period according to the configuration information. The invention introduces the HS-DSCH channel in the paging state, and establishes the channels related to the HS-DSCH on the main carrier, thereby avoiding increasing the complexity of the UE receiver while effectively reducing the transmission delay.

Description

The data transmission method of paging state in the TD-SCDMA system

Technical field

The present invention relates to field of wireless communications, the data transmission method of paging state in particularly a kind of TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, TD SDMA) system.

Background technology

WCDMA (Wideband Code Division Multiple Access; WCDMA) system has released the enhancement techniques under CELL_PCH (cell paging channel), URA_PCH (UTRAN Acceditation Area _ PCH) state on based on HSDPA (High Speed Downlink Packet Access, high speed downlink packet inserts) technical foundation.CELL_PCH, URA_PCH enhancement techniques are through introducing HS-DSCH (High-Speed DownlinkShared Channel at CELL_PCH, URA_PCH state; High speed descending sharing channel) transmission channel strengthens the data transmission performance of this state; Make it obtain less propagation delay time and higher transmission rate, accelerate the speed of paging and downlink data transmission.

WCDMA is not before strengthening CELL_PCH and URA_PCH state; UTRAN (UMTS Terrestrial Radio Access Network, UMTS land radio access web) can only be to UE (User Equipment under CELL_PCH and URA_PCH state; Subscriber equipment) sends out beep-page message; UTRAN at first sends the paging indication on PICH (Paging Indicator Channel, Page Indication Channel) channel, then at PCCH (Paging Control Channel; Paging Control Channel) sends beep-page message on the logic channel; This moment, the PCCH logic channel was mapped on PCH (the Paging Channel PCH) transmission channel, and the PCH channel is mapped on S-CCPCH (Secondary Common Control Physical Channel, the auxiliary CCCH) physical channel again.UE regularly monitors the PICH channel, if find that the paging to oneself is arranged, then remove to receive corresponding PCH channel, otherwise UE does not receive the PCH channel, continues regularly to monitor the PICH channel.

WCDMA is after strengthening CELL_PCH and URA_PCH channel; If UE supports the CELL_PCH and the URA_PCH function of enhancing; The PCCH logic channel will no longer be mapped on the PCH transmission channel; But be mapped on the HS-DSCH transmission channel, the HS-DSCH transmission channel is mapped on HS-PDSCH (High Speed Physical Downlink Shared Channel, the high speed down sharing physical channel) physical channel again.UTRAN sends beep-page message then if paging UE at first sends the paging indication on PICH on the HS-DSCH transmission channel; If UE has special-purpose H-RNTI (HS-DSCH Radio Network Temporary Identifier; The Radio Network Temporary Identifier of HS-DSCH); Then at first on PICH, send the paging indication; On HS-SCCH (shared control channel of Shared ControlChannel for HS-DSCH high speed descending sharing channel) channel, send the HS-PDSCH channel then and receive parameter, on the HS-DSCH channel, send beep-page message again.After UE regularly monitors the PICH channel and finds that the paging to oneself is arranged, no longer receive the PCH channel, but the beep-page message on the reception HS-DSCH channel.

Because a series of enhancement techniques of HS-DSCH itself; Like scheduling, HARQ (Hybrid Automatic Repeat reQuest based on Node B (base station); Mix automatic repeat requests) etc.; Can effectively improve data transfer rate, thereby will significantly improve the signaling delay under CELL_PCH, the URA_PCH state and improve message transmission rate after introducing HS-DSCH.At present TD-SCDMA (TimeDivision-Synchronous Code Division Multiple Access; TD SDMA) in the system, at CELL_PCH state and URA_PCH state, the PCH channel is still used in the transmission of beep-page message; Propagation delay time is big, and transmission rate is low.Because WCDMA is a single-carrier system, and TD-SCDMA is a multicarrier system, the introducing pattern that therefore can not directly indiscriminately imitate WCDMA strengthens the CELL_PCH state and the URA_PCH state of TD-SCDMA system.

Summary of the invention

The technical problem that the present invention will solve provides the data transmission method of paging state in a kind of TD-SCDMA system, reduces the transmission delay of this state, improves transmission rate.

For addressing the above problem, the present invention proposes the data transmission method of paging state in a kind of TD-SCDMA system, this transmission method may further comprise the steps:

A; Configuration information when the high-rise configuration of UMTS land radio access web UTRAN paging state transmits through high speed downlink shared channel HS-DSCH down; Said configuration information is through the user equipment (UE) under cell system broadcast message or the dedicated signaling notice paging state; Said configuration information comprises the control channel HS-SCCH of Page Indication Channel PICH, high speed descending sharing channel and the configuration information of high speed down sharing physical channel HS-PDSCH channel, and said channel all is based upon on the cell main carrier;

B, said subscriber equipment receives the information on the said HS-DSCH channel according to said configuration information in discontinuous reception DRX cycle.

Further, said method also can have following characteristics, and the process that said subscriber equipment receives the information on the said HS-DSCH channel may further comprise the steps:

B1, said subscriber equipment is in paging state, paging receiving indicating channel PICH;

B2, said subscriber equipment judges that as analyzing the efficient paging indication that has on the said Page Indication Channel oneself whether UTRAN is the Radio Network Temporary Identifier H-RNTI that oneself has distributed special-purpose high speed descending sharing channel, if distribute, carries out next step;

B3, said subscriber equipment receives high-speed shared control channel HS-SCCH, parses high speed down sharing physical channel HS-PDSCH and receives parameter, receives said HS-PDSCH channel then.

Further, said method also can have following characteristics, and said paging state comprises CELL_PCH state and URA_PCH state.

Further, said method also can have following characteristics, in the message pick-up process of said subscriber equipment on said HS-DSCH channel, does not mix automatic repeat requests HARQ feedback and channel quality indication CQI report.

Further; Said method also can have following characteristics; Among the step B2; Said subscriber equipment then directly receives parameter according to the HS-PDSCH in the system broadcast message and receives the HS-PDSCH channel as judging the Radio Network Temporary Identifier that does not have to distribute for oneself special-purpose high speed descending sharing channel.

Further; Said method also can have following characteristics; Said subscriber equipment is retransmitted number of times and transport format information through configuration information, HS-PDSCH channel that system broadcast message or dedicated signaling obtain HS-PDSCH, HS-SCCH and PICH channel; And the configuration information of dedicated H-RNTI, the configuration information of each channel comprises: the incidence relation of configuration, PICH channel and the HS-PDSCH channel of frequency, time slot, code channel and the intermediate code at each channel place.

Further; Said method also can have following characteristics; Said subscriber equipment is regularly to receive said PICH channel by discontinuous reception DRX cycle; If wherein not to the efficient paging indication of this subscriber equipment, then subscriber equipment finishes this paging receiving message cycle, waits for next receiving cycle.

Further; Said method also can have following characteristics; UTRAN repeats to send HS-PDSCH according to the configuration parameter in the system broadcast message; Subscriber equipment then according to the repeating transmission number of times of HS-PDSCH channel in the system broadcast message, repeatedly receives the HS-PDSCH channel content, up to right demodulation or till reaching the maximum retransmission of UTRAN.

Further; Said method also can have following characteristics; Said subscriber equipment is as judging the Radio Network Temporary Identifier that does not have to distribute for oneself special-purpose high speed descending sharing channel; Transport block length information according in the system broadcast message is carried out blind decoding to the HS-PDSCH channel; Receive relevant HS-PDSCH channel continuously according to the repeating transmission number of times information in the system broadcast message, up to decoding successfully, subscriber equipment judges through the customer equipment identification in the identification top signaling whether to one's name this send.

Further, said method also can have following characteristics, when said UTRAN wants calling user device, if this subscriber equipment does not have special-purpose H-RNTI, at first on PICH, sends the paging indication, on the HS-DSCH transmission channel, sends beep-page message then; If this subscriber equipment has special-purpose H-RNTI, then at first on PICH, send the paging indication, on the HS-SCCH channel, send the HS-PDSCH channel then and receive parameter, on the HS-DSCH channel, send beep-page message again.

The invention provides a kind of paging Enhancement Method based on multi-carrier TD-SCDMA system; Under paging state, introduce the HS-DSCH channel; And the channel that HS-DSCH is relevant all is based upon on the main carrier, when effectively reducing propagation delay time, avoids increasing the complexity of UE receiver.

Description of drawings

Fig. 1 is CELL_PCH of the present invention, URA_PCH state paging flow chart.

Embodiment

The present invention describes the method that how to realize strengthening CELL_PCH and URA_PCH state under a kind of multi-carrier TD-SCDMA system." paging state " among the present invention refers to CELL_PCH, the URA_PCH state in the existing TD-SCDMA system.

To combine accompanying drawing and embodiment that technical scheme of the present invention is explained in more detail below.

Embodiment

Present embodiment provides a kind of multi-carrier TD-SCDMA system under CELL_PCH, URA_PCH state, to use the method for HS-DSCH channel.

At network side, the configuration information when the high-rise configuration of UTRAN paging state transmits through high speed downlink shared channel HS-DSCH down, said configuration information is through the user equipment (UE) under cell system broadcast message or the dedicated signaling notice paging state.Said configuration information comprises PICH channel, the control channel (comprising the HS-SCCH channel) that HS-DSCH is relevant; And the configuration information of HS-PDSCH channel, comprise the incidence relation of configuration, PICH channel and HS-PDSCH channel of frequency, time slot, code channel and the intermediate code at each channel place.PICH channel, control channel and HS-PDSCH channel that HS-DSCH is relevant all are based upon on the cell main carrier.

At network side; When the UE of UTRAN under CELL_PCH, URA_PCH state sent message, logic channel was mapped on the HS-DSCH transmission channel, and HS-DSCH is mapped to the HS-PDSCH channel on the main carrier in the sub-district; The DPCH that does not follow (Dedicated Physical Channel; DPCH) channel, wherein logic channel can comprise: PCCH channel, CCCH (CommonControl Channel, CCCH) channel, DCCH (Dedicated Control Channel; DCCH) channel, DTCH (Dedicated Traffic Channel, Dedicated Traffic Channel) channel.Whether its concrete transmission flow has dedicated H-RNTI to be divided into two kinds according to UE, identical with the WCDMA system, no longer repeats.

Network side is in up access procedure, to confirm link adaptation scheme to the measurement report that network side sends according to UE, comprises definite modulation system, transport block length, selection repeating transmission number of times etc.Wherein, Up access comprises: RRC (Radio Resource Control; Radio Resource control) connection request process or cell updating course comprise measurement result and the time slot interference sign indicating number power of UE to beacon channel in the said measurement report, and said beacon channel is P-CCPCH (the Primary Common ControlPhysical Channel in the sub-district; Primary Common Control Physical Channel) channel; Said measurement result is to report RNC (Radio Network Controller, radio network controller) earlier by UE, sends to relevant Node B by RNC through Iub interface again.If network side does not have the measurement report of UE or measurement report invalid, network side also can and be retransmitted number of times according to the fixing modulation system of selection of configuration, transport block length.

User equipment (UE) under the same existing system, paging state is all used DRX (DiscontinuousReception, discontinuous reception) and is received.

Before carrying out the HS-DSCH reception, the UE under the paging state need read relevant configuration information.Comprise DRX receiving cycle, the high-rise parameter channel configuration of notifying UE through cell system broadcast or dedicated signaling of network etc.UE can also obtain the configuration information of dedicated H-RNTI through dedicated signaling, also obtains the HS-PDSCH channel through system broadcast message and retransmits number of times and transformat, comprises the information of transport block length.UE receives the information on the HS-DSCH channel according to the configuration information that obtains in discontinuous reception DRX cycle.

Fig. 1 shows the DRX receiving course under paging state of present embodiment, and in this process, the UE of CELL_PCH, URA_PCH state uses the HS-DSCH channel to receive.

Step 100, UE begins the DRX receiving course;

Step 110, UE is in CELL_PCH, URA_PCH state, on the receiving cycle under the DRX mode, receives PICH channel paging indication;

Step 120 after UE regularly receives the PICH Page Indication Channel by DRX cycle, is analyzed the paging indication that whether has in the paging indicating message oneself, if having, goes tostep 130, otherwise goes tostep 180;

UE intercepts the PICH channel at the DRX cycle of oneself, and when the PICH channel comprised with own relevant efficient paging indication, UE just carried out follow-up reception.

Step 130, whether former UE judge in UTRAN the reciprocal process and distributed special-purpose H-RNTI for oneself, if go tostep 140, otherwise goes tostep 160;

Step 140; UE receives the HS-SCCH channel; Comprised next TTI (Transmission Time Interval on the HS-SCCH channel; Transmission Time Interval) UE receives the required parameter of HS-PDSCH channel in, comprises the code channel, time slot at HS-PDSCH channel place, the information that transformat is relevant etc.UE parses the HS-PDSCH channel and receives relevant parameter;

Step 150, UE receives relevant parameter according to HS-PDSCH channel in the Indication message of HS-SCCH channel, and the HS-DSCH transmission channel receiving on the sequential of confirming on the HS-PDSCH physical channel parses concrete beep-page message content; Changestep 170 over to;

Sequential relationship between said HS-SCCH and the HS-PDSCH is arranged by agreement.

Step 160, UE is directly according to HS-PDSCH correlation reception parameter in the system broadcast message, and the HS-DSCH transmission channel receiving on the sequential of confirming on the HS-PDSCH physical channel parses concrete beep-page message content;

In the receiving course in this step; UE carries out blind decoding according to the transport block length information in the system broadcast message to the HS-PDSCH channel; Receive relevant HS-PDSCH channel continuously according to the repeating transmission number of times information in the system broadcast message; Up to decoding successfully, UE identifies through the UE in the identification top signaling and judges whether to one's name this send.

When not having special-purpose H-RNTI, the sequential relationship between said PICH and the HS-PDSCH is arranged by agreement.

In above-mentionedsteps 150 and thestep 160, UTRAN repeats to send HS-PDSCH according to the configuration parameter in the system broadcast message, to guarantee the accurate reception of UE.UE then according to the repeating transmission number of times of HS-PDSCH channel in the system broadcast message, repeatedly receives HS-PDSCH, till demodulation that can be correct or reaching the maximum retransmission of UTRAN.UE need not feed back HARQ affirmation and CQI (Channel Quality Indicator, channel quality indication) indication in DRP data reception process.

Step 170, UE is according to the requirement of the particular content and the UTRAN of message, and UE can be moved to other state and carried out up feedback etc., also can not carry out up feedback, and pending DRX next time such as continuation receives;

DRX receive finish after, UE begins to wait for the arrival of DRX receiving cycle next time, or UE is moved to other state and carried out up feedback etc.

Step 180, this DRX receives and finishes.

The present invention is directed to the paging state that multi-carrier TD-SCDMA system proposes; Be that CELL_PCH, URA_PCH state use in the HS-DSCH channel transmission data method; Consider that the PICH channel is a broadcast channel; Only on main carrier, exist, for fear of the complexity that increases the UE receiver, the HSDPA channel under these two states all is based upon on the main carrier; The UE of these two states does not have up activity, thereby does not require and carry out HARQ feedback and CQI report, and network side carries out link adaptation according to RACH (RandomAccess Channel, RACH) measurement result; HS-PDSCH physical channel resources described in the present invention, HS-SCCH channel resource can be shared the HSDPA resource in the whole sub-district with the UE under CELL_DCH (cell private channel), CELL_FACH (sub-district _ forward access channel) state.Through the method for the invention, can the HS-DSCH channel be used for the PCH state, very limited to the increase of the complexity of UE, simple possible.

Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.

Claims (10)

1. the data transmission method of paging state in the TD-SCDMA system is characterized in that this transmission method may further comprise the steps:

A; Configuration information when the high-rise configuration of UMTS land radio access web UTRAN paging state transmits through high speed downlink shared channel HS-DSCH down; Said configuration information is through the user equipment (UE) under cell system broadcast message or the dedicated signaling notice paging state; Said configuration information comprises the control channel HS-SCCH of Page Indication Channel PICH, high speed descending sharing channel and the configuration information of high speed down sharing physical channel HS-PDSCH channel, and said channel all is based upon on the cell main carrier;

B, said subscriber equipment receives the information on the said HS-DSCH channel according to said configuration information in discontinuous reception DRX cycle.

2. the method for claim 1 is characterized in that, the process that said subscriber equipment receives the information on the said HS-DSCH channel may further comprise the steps:

B1, said subscriber equipment is in paging state, paging receiving indicating channel PICH;

B2, said subscriber equipment judges that as analyzing the efficient paging indication that has on the said Page Indication Channel oneself whether UTRAN is the Radio Network Temporary Identifier H-RNTI that oneself has distributed special-purpose high speed descending sharing channel, if distribute, carries out next step;

B3, said subscriber equipment receives high-speed shared control channel HS-SCCH, parses high speed down sharing physical channel HS-PDSCH and receives parameter, receives said HS-PDSCH channel then.

3. according to claim 1 or claim 2 method is characterized in that said paging state comprises CELL_PCH state and URA_PCH state.

4. according to claim 1 or claim 2 method is characterized in that, in the message pick-up process of said subscriber equipment on said HS-DSCH channel, does not mix automatic repeat requests HARQ feedback and channel quality indication CQI report.

5. method as claimed in claim 2; It is characterized in that; Among the step B2; Said subscriber equipment then directly receives parameter according to the HS-PDSCH in the system broadcast message and receives the HS-PDSCH channel as judging the Radio Network Temporary Identifier that does not have to distribute for oneself special-purpose high speed descending sharing channel.

6. according to claim 1 or claim 2 method; It is characterized in that; Said subscriber equipment is retransmitted number of times and transport format information through configuration information, HS-PDSCH channel that system broadcast message or dedicated signaling obtain HS-PDSCH, HS-SCCH and PICH channel; And the configuration information of dedicated H-RNTI, the configuration information of each channel comprises: the incidence relation of configuration, PICH channel and the HS-PDSCH channel of frequency, time slot, code channel and the intermediate code at each channel place.

7. method as claimed in claim 2; It is characterized in that; Said subscriber equipment is regularly to receive said PICH channel by discontinuous reception DRX cycle; If wherein not to the efficient paging indication of this subscriber equipment, then subscriber equipment finishes this paging receiving message cycle, waits for next receiving cycle.

8. method as claimed in claim 6; It is characterized in that; UTRAN repeats to send HS-PDSCH according to the configuration parameter in the system broadcast message; Subscriber equipment then according to the repeating transmission number of times of HS-PDSCH channel in the system broadcast message, repeatedly receives the HS-PDSCH channel content, up to right demodulation or till reaching the maximum retransmission of UTRAN.

9. like claim 2 or 8 described methods; It is characterized in that; Said subscriber equipment is as judging the Radio Network Temporary Identifier that does not have to distribute for oneself special-purpose high speed descending sharing channel; Transport block length information according in the system broadcast message is carried out blind decoding to the HS-PDSCH channel; Receive relevant HS-PDSCH channel continuously according to the repeating transmission number of times information in the system broadcast message, up to decoding successfully, subscriber equipment judges through the customer equipment identification in the identification top signaling whether to one's name this send.

10. the method for claim 1 is characterized in that, when said UTRAN wants calling user device, if this subscriber equipment does not have special-purpose H-RNTI, at first on PICH, sends the paging indication, on the HS-DSCH transmission channel, sends beep-page message then; If this subscriber equipment has special-purpose H-RNTI, then at first on PICH, send the paging indication, on the HS-SCCH channel, send the HS-PDSCH channel then and receive parameter, on the HS-DSCH channel, send beep-page message again.

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