CN101159902B - Time slot configuration method of carrier cell dedicated for multimedia broadcasting multicast system - Google Patents

Time slot configuration method of carrier cell dedicated for multimedia broadcasting multicast system Download PDF

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CN101159902B
CN101159902B CN2007101653768A CN200710165376A CN101159902B CN 101159902 B CN101159902 B CN 101159902B CN 2007101653768 A CN2007101653768 A CN 2007101653768A CN 200710165376 A CN200710165376 A CN 200710165376A CN 101159902 B CN101159902 B CN 101159902B
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mbms
channel
time slot
message
node
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CN101159902A (en
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马子江
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ZTE Corp
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Abstract

The invention discloses a time slot configuration method for special MBMS carrier wave, which includes a node B configuration and a terminal configuration. Firstly, in wireless resources control information and/or system broadcasting information sent by RNC to cells, configure a primary common control physical channel bearing the system broadcasting information, an auxiliary common control physical channel and a MBMS indicating channel bearing MBMS control channel on a short time slot, and configure the auxiliary common control physical channel bearing MBMS business channel on a common time slot; in the node B application protocol information sent by RNC to the node B, configure the primary common control physical channel and the MBMS indicating channel on the short time slot and configure the auxiliary common control physical channel on the common time slot; after receiving the information, the terminal and the node B configure corresponding time slots respectively. The invention facilitates network side and UE to send out MBMS control signaling and business information on improved frame structure.

Description

A kind of time-slot configuring method of carrier cell dedicated for multimedia broadcasting multicast system
Technical field
The present invention relates to field of wireless communication; Relate in particular to (Time Division Synchronization Code Division Multiple Access at TD-SCDMA; The TD SDMA access) in the system, the time-slot configuring method of carrier cell dedicated for multimedia broadcasting multicast system.
Background technology
The MBMS of TD-SCDMA (multimedia broadcasting and multicast) special carrier technology passes in 3GPP (third generation partner program) meeting; On this special carrier, only provide MBMS professional; The spectrum efficiency of MBMS has obtained raising under this structure, but this scheme is based on existing frame structure, and is as shown in Figure 1; Be not suitable for bigger cell transmission, and spectrum efficiency neither be very high.Requirement for the big cell networking that satisfies the MBMS of operator broadcasting; Obtain higher spectrum efficiency; Guarantee the MBMS quality of service under UE (user equipment, the mobile subscriber equipment) high-speed mobile, at present; Frame structure for TD-SCDMA improves, and this frame structure is applicable to the MBMS special carrier.
After having carried out simple improvement for frame structure shown in Figure 1, go for the MBMS special carrier, its main feature is: all time slots all are used for downlink transfer and do not have ascending time slot; 3 special time slot (protection between descending pilot frequency time slot DwPTS, uplink pilot time slot UpPTS, the up-downgoing is GP at interval) free time are not sent any data; Each common time slot still adopts midamble (intermediate code) to carry out channel estimating.
Carry the professional spectrum efficiency of MBMS in order further to improve special carrier, carried out improving further for the frame structure of TD-SCMDA, it mainly improves and is: 3 special time slots are merged into a crack (MBMS special burst in short-term; Be called for short MS burst); Be used to carry MBMS control signaling and system broadcast message etc., with other 7 common time slots (Time slot=0 ... 6; MBMStraffic burst is called for short MT burst) carrying MBMS business information; And adopt Preamble (leading) sign indicating number to replace the Midamble sign indicating number and carry out channel estimating, promptly each common time slot comprises lead code and data symbol front and back two parts.At present, disclosed new improvement frame structure is as shown in Figure 2, and its main feature is:
(1) all time slots all are descending, all are used for downlink transfer;
(2) do not protect (GP) at interval between the time slot; The switching point that does not have uplink and downlink timeslot;
(3) 3 special time slots (DwPTS, UpPTS, GP) are merged into a crack in short-term;
On a TD-SCDMA subframe, comprise 7 common time slots and 1 crack in short-term;
The crack is used to carry sub-district public control signaling and system broadcast message and paging indication information etc. in short-term, comprises particularly: the control information that MBMS is professional, as: MCCH (MBMS control channel), MICH (MBMS indicating channel) etc., and system broadcast message etc.;
Common time slot is used to carry the Traffic Channel (MTCH, MBMS traffic channel) of MBMS;
Adopt Preamble sign indicating number (lead code) to replace midamble (centre) sign indicating number and carry out channel estimating, replace GP to be used for protection and isolation between time slot with CP (cyclic sequence).
Frame structure after improving like this, spectrum efficiency is higher, also supports the professional big zone of MBMS to cover.Frame structure after this improvement, the sub-district that only is used to carry the MBMS special carrier, the common time slot of all of this sub-district all is used to carry the MBMS business.In the present invention; Sub-district on the MBMS special carrier is exactly MBSFN pattern (MBSFN mode:Transmission mode where a set of synchronized cells transmit exactly the same data for provision of MBMS service; The MBMS business of transmission identical data in some synchronized cells) sub-district, the MBMS business is only carried in this sub-district.
The problem of existence is at present, and the time slot that many variations, particularly beared information (control information and business information) have taken place the TD-SCDMA frame structure on the MBMS special carrier no longer is 7, but 8 (wherein MBMS control time slot, MS burst are carried in the crack in short-term).Correspondingly, in high-level signaling, also should correspondingly make amendment, can on the frame structure after this improves, send MBMS control signaling and business information with network enabled side (comprising radio network controller and Node B) and UE.
Summary of the invention
The technical problem that the present invention will solve provides the carrier cell dedicated time-slot configuring method of a kind of MBMS; Be applicable to the TD-SCDMA system; Realize the carrier cell dedicated configuration of time slot in high-level signaling of MBMS, make network side and UE can support improved MBMS frame structure.
In order to address the above problem, the invention provides a kind of time-slot configuring method of multimedia broadcast/multicast system MBMS special carrier, be applicable to TD-SCDMA system, it is characterized in that, comprising:
A, send in the radio resource control information and/or system broadcast message of sub-district at radio network controller; The Primary Common Control Physical Channel of bearing system broadcast, the auxiliary publish control physical channel that carries the MBMS control channel and MBMS indicating channel are configured in short-term on the crack, and the auxiliary publish control physical channel that will carry the MBMS Traffic Channel is configured on the common time slot;
Send in the Node B application protocol message of Node B at radio network controller, Primary Common Control Physical Channel and MBMS indicating channel are configured in short-term on the crack, auxiliary publish control physical channel is configured on the common time slot;
Terminal in B, the sub-district and Node B are distinguished the corresponding configuration time slot after receiving said message.
Further, said step B comprises:
After terminal in the sub-district received above-mentioned radio resource control information and/or system broadcast message, configuration MBMS Traffic Channel on common time slot was disposing MBMS control channel and MBMS indicating channel on the crack in short-term, and the system broadcast message control channel;
After Node B receives above-mentioned Node B application protocol message, Primary Common Control Physical Channel and MBMS indicating channel are configured in short-term on the crack, auxiliary publish control physical channel is configured on the common time slot.
Further, in the steps A:
The radio resource control information that said radio network controller sends to the sub-district comprises MBMS general notification message, MBMS P-T-M wireless loading notification message; The system broadcast message that said radio network controller sends to the sub-district comprises: system broadcast message 5.
Further, in the steps A:
The Node B application protocol message that said RNC sends to Node B comprises that request message is set up in the sub-district, cell re-configuration puts request message and Common transport channel is set up request message.
The present invention also provides a kind of multimedia broadcast/multicast system MBMS the carrier cell dedicated time-slot configuring method of going up the terminal, is applicable to TD-SCDMA system, it is characterized in that, comprising:
A, send in the MBMS carrier cell dedicated radio resource control information and/or system broadcast message at radio network controller; The Primary Common Control Physical Channel of bearing system broadcast, the auxiliary publish control physical channel that carries the MBMS control channel and MBMS indicating channel are configured in short-term on the crack, and the auxiliary publish control physical channel that will carry the MBMS Traffic Channel is configured on the common time slot;
After portable terminal in B, the sub-district was received said message, configuration MBMS Traffic Channel on common time slot was disposing MBMS control channel and MBMS indicating channel and system broadcast message control channel on the crack in short-term.
Further, in the steps A:
The radio resource control information that said radio network controller sends to the sub-district comprises MBMS general notification message, MBMS P-T-M wireless loading notification message; The system broadcast message that said radio network controller sends to the sub-district comprises: system broadcast message 5.
Further, each 5 milliseconds of subframe of MBMS special carrier comprise 7 common time slots, and its time slot is numbered 0~6; Also comprise 1 crack in short-term, its time slot is numbered 7.
The present invention also provides a kind of multimedia broadcast/multicast system MBMS the carrier cell dedicated time-slot configuring method of going up Node B, is applicable to TD-SCDMA system, it is characterized in that, comprising:
A, send in the Node B application protocol message of the carrier cell dedicated Node B of MBMS at radio network controller, Primary Common Control Physical Channel and MBMS indicating channel are configured in short-term on the crack, auxiliary publish control physical channel is configured on the common time slot;
After B, Node B are received said message, Primary Common Control Physical Channel and MBMS indicating channel are configured in short-term on the crack, auxiliary publish control physical channel is configured on the common time slot.
Further, in the steps A:
The Node B application protocol message that said RNC sends to Node B comprises that request message is set up in the sub-district, cell re-configuration puts request message and Common transport channel is set up request message.
Further, each 5 milliseconds of subframe of MBMS special carrier comprise 7 common time slots, and its time slot is numbered 0~6; Also comprise 1 crack in short-term, its time slot is numbered 7.
Scheme of the present invention is made amendment to high-level signaling, makes its network enabled side (comprising radio network controller and Node B) and UE can on the frame structure after the improvement, send MBMS control signaling and business information.
Description of drawings
Fig. 1 is the frame structure sketch map on the common carrier wave in the prior art;
Fig. 2 is the frame structure sketch map on the MBMS special carrier in the prior art;
Fig. 3 is the practical implementation flow chart of the carrier cell dedicated time-slot configuring method of MBMS of the present invention;
Fig. 4 is the schematic flow sheet of application example one of the present invention;
Fig. 5 is the schematic flow sheet of application example two of the present invention.
Embodiment
To combine accompanying drawing and embodiment that technical scheme of the present invention is explained in more detail below.
The present invention proposes the carrier cell dedicated time-slot configuring method of a kind of MBMS, be applicable to the TD-SCDMA system; In this system, have 8 time slots on carrier cell dedicated each the 5ms subframe of MBMS, comprise 7 common time slots (MT burst) and 1 crack (MS burst) in short-term; The explanation of back literary composition for ease, the time-gap number (Timeslot number) of regulation special carrier is 0~7, wherein time-gap number 0~6 is common time slot, time-gap number 7 be crack in short-term.
The carrier cell dedicated time-slot configuring method of said MBMS is as shown in Figure 3, comprising:
A1, when RNC (radio network controller) is the time slot of the carrier cell dedicated UE of MBMS configuration public physic channel; Send in the carrier cell dedicated RRC of MBMS (Radio Resource control) message and/or the system broadcast message at RNC; The Primary Common Control Physical Channel (P-CCPCH) of bearing system broadcast, the auxiliary publish control physical channel (S-CCPCH) that carries MBMS control channel (MCCH) and MBMS indicating channel physical channels such as (MICH) are configured in short-term on crack (time-gap number is 7), and the S-CCPCH that will carry MBMS Traffic Channel (MTCH) is configured in (time-gap number is 0~6) on 7 common time slots;
Said RNC sends to the carrier cell dedicated RRC of MBMS (Radio Resource control) message and comprises MBMS general notification message (MBMS GENERAL INFORMATION), MBMS P-T-M wireless loading notification message (MBMS COMMON P-T-M RB INFORMATION) etc.; The system broadcast message that said RNC sends to the sub-district comprises: system broadcast message 5 (SIB 5) etc.
A2, when RNC is the time slot of the carrier cell dedicated Node B (Node B) of MBMS configuration public physic channel; Send in NBAP (Node B application protocol) message of Node B at RNC; P-CCPCH and MICH are configured in short-term on crack (time-gap number is 7), and S-CCPCH is configured on 7 common time slots (time-gap number is 0~6);
NBAP (Node B application protocol) message that said RNC sends to the carrier cell dedicated Node B of MBMS comprises: request message (CELL SETUP REQUEST) is set up in the sub-district, cell re-configuration puts request message (CELL RECONFIGURATION REQUEST) and Common transport channel is set up request message (COMMON TRANSPORT CHANNEL SETUP REQUEST) etc.
A1 and A2 be order in no particular order.
B, UE and Node B are distinguished the corresponding configuration time slot after receiving said message, are specially:
After UE during B 1, MBMS are carrier cell dedicated receives above-mentioned RRC message and/or system broadcast message, on common time slot, dispose MTCH, control channel and the indicating channel of configuration MBMS on crack in short-term, and BCCH (system broadcast message control channel).
After B2, Node B receive above-mentioned NBAP message, P-CCPCH and MICH are configured in short-term on the crack, S-CCPCH is configured on 7 common time slots.
B1 and B2 be order in no particular order.
The present invention also provides a kind of MBMS the time-slot configuring method of the carrier cell dedicated UE of going up, comprises A1 and B1 in the above-mentioned steps; The present invention also provides a kind of MBMS the time-slot configuring method of the carrier cell dedicated Node B of going up, comprises A2 and B2 in the above-mentioned steps.
Further explain with two application examples of the present invention below.
The number of time slot of the public physic channel on application example one, the MBMS special carrier is 8, that is: Timeslot number=Integer (0..7), and wherein integer=(0..6) is used for MT burst, and integer=7 is used for MS burst;
Aloft on the interface (Uu interface), what increase newly is applicable to that the carrier cell dedicated time slot configuration of MBMS is as shown in table 1.
The time slot configuration of table one, MBMS special carrier
Figure GSB00000665289900071
As shown in Figure 4; During public physic channel on system broadcast message 5 (SIB5) configuration/reconfiguration MBMS special carrier; In the information unit (IE) " Secondary CCPCH infoMBMS " of this message; The time slot configuration of the S-CCPCH physical channel that carries MCCH at Timeslotnumber=7, promptly is configured in short-term on the crack (MS burst); UE in the sub-district receives relevant information unit among the SIB 5, is then receiving the relevant S-CCPCH channel of MCCH on the crack in short-term.
Send among the IE " MICH configuration information " in the carrier cell dedicated MBMS general notification message " MBMSGENERAL INFORMATION " of MBMS at RNC; The time slot configuration of MICH at Timeslot number=7, promptly is configured in short-term on the crack (MS burst); UE in the sub-district receives relevant information unit in this message, is then receiving the MICH physical channel on the crack in short-term.
Send among the IE " Secondary CCPCH info MBMS " in the public P-T-M wireless loading notification message of MBMS (MBMSCOMMON P-T-M RB INFORMATION) of sub-district at RNC; The time slot configuration of the S-CCPCH physical channel that carries MTCH in Timeslot number=0~6, promptly is configured in (MT burst) on the common time slot; UE in the sub-district receives relevant information unit in this message, then on common time slot, receives the MTCH physical channel.
The number of time slot of the public physic channel on application example two, the MBMS special carrier is 8, that is: Timeslot number=Integer (0..7), and wherein integer=(0..6) is used for MT burst, and integer=7 is used for MS burst; On Iub interface, the number of time slot of physical channel is revised as shown in table 2.
Table 2: low spreading rate time slot
Figure GSB00000665289900081
The quantity of communication time slot in 5 milliseconds of subframes that low spreading rate time slot (Time Slot LCR) is a low spreading rate tdd systems.
As shown in Figure 5, set up request message and cell re-configuration in the sub-district that RNC sends to NodeB and put in the request message P-CCPCH is configured in time-gap number 7 (Time slot LCR=7);
The Common transport channel that sends to the carrier cell dedicated Node B of MBMS at RNC is set up in the request message; MICH is configured in time-gap number 7 (Time slot LCR=7); And S-CCPCH is configured in Timeslot slot LCR=0 ... .7, promptly S-CCPCH is configured in 7 common time slots (MT burst) and 1 in short-term on crack (MS burst); This is that the mapping S-CCPCH that has (time-gap number 0~6) is to MTCH because the S-CCPCH (time-gap number 7) that has is mapped on the MCCH;
After Node B receives the related news from RNC, P-CCCH and S-CCPCH and MICH are configured on the time slot corresponding.
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 time-slot configuring method of a multimedia broadcast/multicast system MBMS special carrier is applicable to TD-SCDMA system, it is characterized in that, comprising:
A, send in the radio resource control information and/or system broadcast message of sub-district at radio network controller; The Primary Common Control Physical Channel of bearing system broadcast, the auxiliary publish control physical channel that carries the MBMS control channel and MBMS indicating channel are configured in short-term on the crack, and the auxiliary publish control physical channel that will carry the MBMS Traffic Channel is configured on the common time slot;
Send in the Node B application protocol message of Node B at radio network controller, Primary Common Control Physical Channel and MBMS indicating channel are configured in short-term on the crack, auxiliary publish control physical channel is configured on the common time slot;
Terminal in B, the sub-district and Node B are distinguished the corresponding configuration time slot after receiving said message.
2. time-slot configuring method as claimed in claim 1 is characterized in that, said step B comprises:
After terminal in the sub-district received above-mentioned radio resource control information and/or system broadcast message, configuration MBMS Traffic Channel on common time slot was disposing MBMS control channel and MBMS indicating channel on the crack in short-term, and the system broadcast message control channel;
After Node B receives above-mentioned Node B application protocol message, Primary Common Control Physical Channel and MBMS indicating channel are configured in short-term on the crack, auxiliary publish control physical channel is configured on the common time slot.
3. time-slot configuring method as claimed in claim 1 is characterized in that, in the steps A:
The radio resource control information that said radio network controller sends to the sub-district comprises MBMS general notification message, MBMS P-T-M wireless loading notification message; The system broadcast message that said radio network controller sends to the sub-district comprises: system broadcast message 5.
4. time-slot configuring method as claimed in claim 1 is characterized in that, in the steps A:
The Node B application protocol message that said RNC sends to Node B comprises that request message is set up in the sub-district, cell re-configuration puts request message and Common transport channel is set up request message.
5. the carrier cell dedicated time-slot configuring method of going up the terminal of multimedia broadcast/multicast system MBMS is applicable to TD-SCDMA system, it is characterized in that, comprising:
A, send in the MBMS carrier cell dedicated radio resource control information and/or system broadcast message at radio network controller; The Primary Common Control Physical Channel of bearing system broadcast, the auxiliary publish control physical channel that carries the MBMS control channel and MBMS indicating channel are configured in short-term on the crack, and the auxiliary publish control physical channel that will carry the MBMS Traffic Channel is configured on the common time slot;
After portable terminal in B, the sub-district was received said message, configuration MBMS Traffic Channel on common time slot was disposing MBMS control channel and MBMS indicating channel and system broadcast message control channel on the crack in short-term.
6. time-slot configuring method as claimed in claim 5 is characterized in that, in the steps A:
The radio resource control information that said radio network controller sends to the sub-district comprises MBMS general notification message, MBMS P-T-M wireless loading notification message; The system broadcast message that said radio network controller sends to the sub-district comprises: system broadcast message 5.
7. time-slot configuring method as claimed in claim 5 is characterized in that: each 5 milliseconds of subframe of MBMS special carrier comprise 7 common time slots, and its time slot is numbered 0~6; Also comprise 1 crack in short-term, its time slot is numbered 7.
8. the carrier cell dedicated time-slot configuring method of going up Node B of multimedia broadcast/multicast system MBMS is applicable to TD-SCDMA system, it is characterized in that, comprising:
A, send in the Node B application protocol message of the carrier cell dedicated Node B of MBMS at radio network controller, Primary Common Control Physical Channel and MBMS indicating channel are configured in short-term on the crack, auxiliary publish control physical channel is configured on the common time slot;
After B, Node B are received said message, Primary Common Control Physical Channel and MBMS indicating channel are configured in short-term on the crack, auxiliary publish control physical channel is configured on the common time slot.
9. time-slot configuring method as claimed in claim 8 is characterized in that, in the steps A:
The Node B application protocol message that said RNC sends to Node B comprises that request message is set up in the sub-district, cell re-configuration puts request message and Common transport channel is set up request message.
10. time-slot configuring method as claimed in claim 8 is characterized in that: each 5 milliseconds of subframe of MBMS special carrier comprise 7 common time slots, and its time slot is numbered 0~6; Also comprise 1 crack in short-term, its time slot is numbered 7.
CN2007101653768A 2007-10-26 2007-10-26 Time slot configuration method of carrier cell dedicated for multimedia broadcasting multicast system Expired - Fee Related CN101159902B (en)

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