CN101374257B - Method for transmitting multimedia broadcast/multicast business data of radio communication system - Google Patents
Method for transmitting multimedia broadcast/multicast business data of radio communication system Download PDFInfo
- Publication number
- CN101374257B CN101374257B CN 200710140495 CN200710140495A CN101374257B CN 101374257 B CN101374257 B CN 101374257B CN 200710140495 CN200710140495 CN 200710140495 CN 200710140495 A CN200710140495 A CN 200710140495A CN 101374257 B CN101374257 B CN 101374257B
- Authority
- CN
- China
- Prior art keywords
- time slot
- special time
- business
- length
- multimedia broadcast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a data transmission method for multimedia broadcast/multicast service in a radio communication system, wherein a radio frame has a length of 10 milliseconds. The method is characterized in that the method comprises the following steps: (1) dividing the length of the radio frame into N time slots including at least one special time slot and at least one conventional time slot; and (2) transmitting a downlink pilot frequency and/or a control signal in the special time slot, and transmitting service data in the conventional time slot when a transmission terminal transmits data of each frame. The data transmission method can effectively improve the frequency spectrum utilization rate of the radio frame of a carrier frequency special for MBMS.
Description
Technical field
The present invention relates to MBMS (the Multimedia Broadcast/Multicast Service in a kind of wireless communication system, multimedia broadcast multi-broadcasting business) data transmission method for uplink, relate in particular to the data transmission method for uplink of the MBMS service-specific carrier frequency in the communication system of future generation of TDD (Time Division Duplex, time division duplex) pattern.
Background technology
MBMS is a kind of high speed one way traffic with broadcasting or the transmission of multicast form, and it can effectively transmit high-speed multimedia data to a plurality of users simultaneously in a cell range.
If the MBMS business tine of each residential quarter emission is different, can occur that service power is limited, presence of intercell interference is serious, and the problem such as minizone switching, directly affect the application of MBMS business.In order to overcome the above problems, according to the regulation in 3GPP, utilize all residential quarters in a MBMS service area to launch simultaneously the mode of identical descending MBMS business, mobile phone terminal utilizes multipath to eat dishes without rice or wine to merge gain and obtains superior in quality multi-medium data.
But, due to the high data rate of the broadcasting service in the MBMS business, the characteristics of open loop one direction transmission, make IMT-ADV (International Mobile Telecommunications Advance, IMT-Advanced) system frame structure be not suitable for carrying more MBMS broadcasting service.
With reference to shown in Figure 1, be IMT-ADV system general service wireless frame structure schematic diagram.The wireless frame structure of IMT-ADV system is as undefined; a wireless frame length is 10 milliseconds; each 10 milliseconds of long radio frames is divided into 25 milliseconds of wireless sub-frames; each wireless sub-frame is divided into again conventional business time-slot and special time slot; special time slot comprises descending pilot frequency time slot, uplink pilot time slot and both between the protection time slot.
In the IMT-ADV system, the main purpose that 10 milliseconds of radio frames are divided into 25 milliseconds of subframes is in order to improve the frequency of up and down power control in conventional business, and for the complete descending business of MBMS, do not have the power demand for control in similar conventional business.Like this, the radio frames of IMT-ADV is divided into two wireless sub-frames has just there is no its original meaning, and the expense of the special time slot in each subframe, be a kind of waste to the special carrier frequency of MBMS business, be unfavorable for improving the availability of frequency spectrum of MBMS special carrier frequency.
In order to improve the availability of frequency spectrum of existing IMT-ADV system bearing MBMS business, the broaden business area coverage must design a kind of new IMT-ADV special carrier MBMS traffic frame structure and data transmission method for uplink thereof.
Summary of the invention
Technical problem to be solved by this invention is to provide the data transmission method for uplink of multimedia broadcast multi-broadcasting business in a kind of wireless communication system, improves the wireless frequency spectrum utilance, and the coverage of business.
In order to solve the problems of the technologies described above, the invention provides the data transmission method for uplink of multimedia broadcast multi-broadcasting business in a kind of wireless communication system, a wireless frame length is 10 milliseconds, said method comprising the steps of:
(1) a radio frames length is divided into N time slot, comprising at least one special time slot and at least one conventional time slot;
(2) transmitting terminal when sending every frame data, sends descending pilot frequency and/or control signal at special time slot, sends business datum at conventional time slot.
Further, step also comprises in (2): transmitting terminal every 1 or every 2 or every 4 radio frames send a descending pilot frequency, all send control signaling at the special time slot of the radio frames that does not send descending pilot frequency.
Further, in step (1), N is 11, and comprising 10 conventional time slots and 1 special time slot, each conventional slot length is 949.1964 microseconds, and described special time slot length is 474.5982 microseconds.
Further, transmitting terminal sends a descending pilot frequency at described special time slot, sends control signaling in all the other times of described special time slot.
By data transmission method for uplink of the present invention, can effectively improve the radio frames availability of frequency spectrum of MBMS special carrier frequency.
Description of drawings
Fig. 1 is IMT-ADV system general service wireless frame structure schematic diagram.
Fig. 2 is the IMT-ADV MBMS of system special carrier frequency wireless frame structure schematic diagram of the present invention.
Fig. 3 is the data transmission method for uplink flow chart of multimedia broadcast multi-broadcasting business in wireless communication system of the present invention.
Fig. 4 is the frame structure schematic diagram of the present invention's one application example.
Embodiment
The present invention is by after carrying out minor modifications to the IMT-ADV system, keep existing radio frames length, radio frames is divided into some time slots, and send descending pilot frequency and/or control signal at a special time slot, thereby can improve the availability of frequency spectrum of existing IMT-ADV system bearing MBMS business, the broaden business area coverage.
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail.
With reference to shown in Figure 2, be the IMT-ADV MBMS of system special carrier frequency wireless frame structure schematic diagram of the present invention.MBMS special carrier frequency of the present invention is 10 milliseconds with frame length of radio frames, is divided into a plurality of time slots.
With reference to shown in Figure 3, be the data transmission method for uplink flow chart of multimedia broadcast multi-broadcasting business in wireless communication system of the present invention.Said method comprising the steps of:
Step 301: keep the existing IMT-ADV 10ms of system frame length, no longer distinguish the 5ms subframe, 10ms radio frames length is divided into some time slots, comprising at least one special time slot and at least one conventional time slot;
Wherein, a special time slot is used for descending pilot frequency and is used for control channel.
Optionally, descending pilot frequency can be every 1 or every 2, and perhaps every 4 frames transmit once, can be all for the transfer control signaling at the special time slot of the radio frames that does not descend capable pilot tone.
Step 302: transmitting terminal sends descending pilot frequency and/or control signal at special time slot when sending every frame data, send business datum at conventional time slot.
Below by the example in concrete application, technical solution of the present invention is carried out exemplary illustration.
With reference to shown in Figure 4, be the frame structure schematic diagram of the present invention's one application example, the definition mode of MBMS special carrier frequency wireless frame structure in a kind of concrete TD-SCDMA system has been described.
A wireless frame length is 10 milliseconds.A radio frames is divided into 11 time slots, and comprising 10 conventional time slots, each length is 949.1964 microseconds; With a special time slot, long 474.5982 microseconds, described special time slot comprises a descending pilot frequency sequence, and it can be used for doing down-going synchronous, and remaining time is distributed to descending MBMS business control signaling.
Utilize full downlink frame structure of the present invention, in the situation that do not affect system synchronization, can increase the business available resources, improve the availability of frequency spectrum of system.
Certainly, above-mentioned embodiment is not the further restriction to technical solution of the present invention, and any those of ordinary skill in the art replaced and corresponding improvement the technology of the present invention feature being equal to of doing, still within protection scope of the present invention.
Claims (3)
1. the data transmission method for uplink of multimedia broadcast multi-broadcasting business in a wireless communication system, a wireless frame length is 10 milliseconds, is applied to the complete descending business of multimedia broadcast multi-broadcasting business MBMS, it is characterized in that, said method comprising the steps of:
(1) no longer distinguish 5 milliseconds of subframes, a radio frames length is divided into N time slot, comprising at least one special time slot and at least one conventional time slot;
(2) transmitting terminal when sending every frame data, sends descending pilot frequency or control signal at special time slot, sends business datum at conventional time slot; Transmitting terminal every 1 or every 2 or every 4 radio frames send a descending pilot frequency, all send control signaling at the special time slot of the radio frames that does not send descending pilot frequency.
2. the method for claim 1, is characterized in that, in step (1), N is 11, and comprising 10 conventional time slots and 1 special time slot, each conventional slot length is 949.1964 microseconds, and described special time slot length is 474.5982 microseconds.
3. method as claimed in claim 2, is characterized in that, transmitting terminal sends a descending pilot frequency at described special time slot, sends control signaling in all the other times of described special time slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710140495 CN101374257B (en) | 2007-08-24 | 2007-08-24 | Method for transmitting multimedia broadcast/multicast business data of radio communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710140495 CN101374257B (en) | 2007-08-24 | 2007-08-24 | Method for transmitting multimedia broadcast/multicast business data of radio communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101374257A CN101374257A (en) | 2009-02-25 |
| CN101374257B true CN101374257B (en) | 2013-06-05 |
Family
ID=40448141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710140495 Expired - Fee Related CN101374257B (en) | 2007-08-24 | 2007-08-24 | Method for transmitting multimedia broadcast/multicast business data of radio communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101374257B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685890B (en) | 2011-03-08 | 2017-11-14 | 中兴通讯股份有限公司 | The sending method and system of a kind of pilot tone |
-
2007
- 2007-08-24 CN CN 200710140495 patent/CN101374257B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101374257A (en) | 2009-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1905428B (en) | Transmission method of TDD mobile communication system with low delay character | |
| CN102511192B (en) | Communication system, communication means, base station and communication equipment | |
| TWI673987B (en) | Flexible frame structure for ofdm systems | |
| CN1909533B (en) | Frame creating method based on crossing frequency division multiplexing in time-division duplex mode | |
| CN109417529B (en) | Method and apparatus for configuring and detecting cyclic prefix length in a cell supporting multiple subcarrier spacings | |
| CN101159902B (en) | Time slot configuration method of carrier cell dedicated for multimedia broadcasting multicast system | |
| CN102387506B (en) | Physical resource configuring and signal transmitting method and system when communication systems coexist | |
| CN102577221A (en) | Improved downlink association set for uplink ACK/NACK in time division duplex system | |
| CN102598524A (en) | Method and system for transceiving group-specific information in a coordinated multi-antenna transceiver system | |
| US20100177807A1 (en) | Method and apparatus for relaying wireless traffic in a wireless network | |
| CN101374012B (en) | Wireless transmission method for TDD OFDM system and physical layer frame structure | |
| CN102148784B (en) | Communication method, system and device between base station and relay station in relay system | |
| CN101686434A (en) | MBMS transmission feedback method, system and devices | |
| CN101378305B (en) | Method for sending data of TDD radio communication system base on OFDM technology | |
| CN101087469B (en) | A method for realizing random access of user device | |
| CN102386963B (en) | Frame configuration method, signal transmission method and frame configuration system with coexistence of communication systems | |
| US9083396B2 (en) | OFDMA-based operation of a wireless subscriber terminal in a plurality of cells | |
| CN101442755B (en) | Radio communication system capable of supporting Relay | |
| CN103546411B (en) | Uplink authorization information sending method, authorization message indicating means and base station | |
| CN1980462A (en) | Method for eliminating common-frequency interference in time-division multiple-address honeycomb communication system | |
| CN107396449B (en) | Configuration method of special subframe of TD-LTE electric wireless private network | |
| CN101374257B (en) | Method for transmitting multimedia broadcast/multicast business data of radio communication system | |
| CN101686435A (en) | MBMS transmission method, system and devices | |
| US20080242291A1 (en) | Method and system for transmitting/receiving data in communication system | |
| CN101237675B (en) | Method for base station to transmit feedback signals to the terminal in time division duplex system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20190824 |