CN101795469B - Data transmission method and device - Google Patents
Data transmission method and device Download PDFInfo
- Publication number
- CN101795469B CN101795469B CN 200910260236 CN200910260236A CN101795469B CN 101795469 B CN101795469 B CN 101795469B CN 200910260236 CN200910260236 CN 200910260236 CN 200910260236 A CN200910260236 A CN 200910260236A CN 101795469 B CN101795469 B CN 101795469B
- Authority
- CN
- China
- Prior art keywords
- flow control
- control parameters
- data
- ehs
- tbsize
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 14
- 241000209094 Oryza Species 0.000 claims description 32
- 235000007164 Oryza sativa Nutrition 0.000 claims description 32
- 235000021186 dishes Nutrition 0.000 claims description 32
- 235000009566 rice Nutrition 0.000 claims description 32
- 238000005516 engineering process Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a data transmission method and a device. The method comprises the following steps: A, calculating the rates of TBsize, transmitted by the air interface of a user device, and the allowable MAC-ehs according to the channel quality indicator reported by the user device; B, calculating the flow control parameters of the capability distribution frame according to the rates of the TBsize and the allowable MAC-ehs; C, and transmitting data to the user device according to the flow control parameters. The invention calculates the required MAC-ehs flow control parameters according to different air interface channel, thereby avoiding transmitting large RLC data packets at the air interface when the channel conditions worsen; and meanwhile, when the air interface conditions are good, the invention can use large RLC PDU data packets to enhance the system throughput.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of method and apparatus of transfer of data.
Background technology
WCDMA(Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) system introduces HSDPA(High Speed Downlink Packet Access in the R5 agreement, the high speed downlink packet access) business, by short frame, link circuit self-adapting and high order modulation satisfy the demand of high-speed downstream business.Be to improve TBsize(Transport Block Size, the transmission block size) efficiency of transmission, in the R7 agreement, introduced the MAC-ehs layer.MAC-ehs allows larger RLC(Radio Link Control, Radio Link control) the piece transmission, preferably in the situation, eat dishes without rice or wine to select larger TBsize at channel condition.If at this moment use larger RLC PDU(Protocol Data Unit, protocol Data Unit) SIZE can improve the efficiency of transmission of system, increases throughput of system.
But in the channel condition variation, HS-PDSCH(High Speed Physcial Downlink Share Channel, high-speed physical downlink shared channel (HS-PDSCH)) TBsize of code channel transmission diminishes, the residual BLER(Block Error Ratio that eats dishes without rice or wine, Block Error Rate) higher, cause so a large RLC packets need to eat dishes without rice or wine many times to transmit and just can finish the group bag, if wherein there is the MAC-ehs packet to lose in the biography of eating dishes without rice or wine, the RLC packet of repeatedly eating dishes without rice or wine to transmit is dropped the application re-transmission.
Summary of the invention
The problem to be solved in the present invention provides a kind of method and apparatus of transfer of data, causes the defective of larger data retransmission amount when sending large RLC data block mistake to overcome in the prior art when the poor channel conditions.
For achieving the above object, technical scheme of the present invention provides a kind of data transmission method, said method comprising the steps of: the CQI of A, reception user equipment to report, according to high-speed physics downlink shared channel code road number and the H available horsepower of cell configuration, calculate the TBsize that described subscriber equipment eats dishes without rice or wine to transmit; According to described TBsize, calculate the MAC-ehs speed that described subscriber equipment eats dishes without rice or wine to allow; B, according to MAC-ehs speed, the base station existing high speed descending sharing channel Frame Protocol HS-DSCH FP data volume of described permission and radio network controller to the transmission delay between the base station, calculate the data volume that the high-speed packet access dispatching need to transmit at the Iub mouth; Then the data volume and the described TBsize that transmit at the Iub mouth according to described needs, computing capability is distributed the flow control parameters of frame; The flow control parameters of described capability distribution frame comprises: the transmission loopback delay between maximum data packet length, radio network controller and the base station, high speed descending sharing channel Credits and high speed descending sharing channel repetition period; C, according to described flow control parameters to described user device transmissions data.
Further, described step C specifically comprises: C1, base station are used capability distribution frame that described flow control parameters is sent to radio network controller and are processed; C2, wireless network controller updates flow control parameters, and the flow control parameters after next delivery time is according to renewal sends to the base station with high speed descending sharing channel Frame Protocol data; C3, base station become the MAC-ehs protocol Data Unit to send to subscriber equipment described high speed descending sharing channel Frame Protocol data assembling when scheduling.
Technical scheme of the present invention also provides a kind of data transmission device, described device comprises: the MAC-ehs speed acquiring unit of the TBsize that subscriber equipment eats dishes without rice or wine to transmit and permission, be used for receiving the CQI of user equipment to report, according to high-speed physics downlink shared channel code road number and the H available horsepower of cell configuration, calculate the TBsize that described subscriber equipment eats dishes without rice or wine to transmit; According to described TBsize, calculate the MAC-ehs speed that described subscriber equipment eats dishes without rice or wine to allow; The flow control parameters acquiring unit, be used for according to MAC-ehs speed, the base station existing high speed descending sharing channel Frame Protocol HS-DSCH FP data volume of described permission and radio network controller to the transmission delay between the base station, calculate the data volume that the high-speed packet access dispatching need to transmit at the Iub mouth; Then the data volume and the described TBsize that transmit at the Iub mouth according to described needs, computing capability is distributed the flow control parameters of frame; The flow control parameters of described capability distribution frame comprises: the transmission loopback delay between maximum data packet length, radio network controller and the base station, high speed descending sharing channel Credits and high speed descending sharing channel repetition period; Data transmission unit is used for according to described flow control parameters to described user device transmissions data.
Compared with prior art, beneficial effect of the present invention is as follows:
The present invention calculates the MAC-ehs flow control parameters that needs according under the different channel conditions of eating dishes without rice or wine, and avoids in the channel condition variation, is eating dishes without rice or wine to transmit larger RLC packet; Simultaneously preferably in the situation, can use larger RLC PDU packet in the condition of eating dishes without rice or wine, improve throughput of system.
Description of drawings
Fig. 1 is the flow chart of a kind of data transmission method of the embodiment of the invention;
Fig. 2 is the structure chart of a kind of data transmission device of the embodiment of the invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
A kind of data transmission method of the embodiment of the invention as shown in Figure 1, at first according to UE(User Equipment, subscriber equipment) CQI that reports (Channel Quality Indicator, CQI), calculate TBsize that described UE eats dishes without rice or wine to transmit and the MAC-ehs speed of permission, then according to the flow control parameters of the MAC-ehs rate calculations capability distribution frame of described TBsize and permission, at last according to described flow control parameters to described UE the transmission of data.With reference to Fig. 1, the present embodiment may further comprise the steps:
Step s101, the NodeB(base station) HSDPA scheduler receives the CQI that UE reports, HS-PDSCH code channel number and H available horsepower according to cell configuration, use TFRC (Transport Format Resource Combination, transformat and combination of resources) algorithm to calculate the TBsize that described UE eats dishes without rice or wine to transmit.
Step s102, the HSDPA scheduler of NodeB are according to described TBsize, take the 10ms MAC-ehs speed that described UE eats dishes without rice or wine to allow as unit calculates.
Step s103, according to the existing HS-DSCH FP of MAC-ehs speed, the NodeB of described permission (High Speed Downlink Share Channel Frame Protocol, the high speed descending sharing channel Frame Protocol) data volume and radio network controller be to the transmission delay between the NodeB, calculates the data volume that the high-speed packet access dispatching need to transmit at the Iub mouth.In the present embodiment, the data rate of the MAC-ehs that the HSDPA scheduler of NodeB can send according to eating dishes without rice or wine and Iub transmission loopback delay T1 calculate the data volume of eating dishes without rice or wine at the HS-DSCH of unit interval needs FP; HS-DSCH FP data volume as required and the existing HS-DSCH FP of HSDPA scheduler data volume are calculated needs RNC(Radio Network Controller, radio network controller) the data volume D1 that sends.
Step s104, the TBsize that the data volume of transmitting at the Iub mouth according to described needs and described UE eat dishes without rice or wine to transmit, computing capability is distributed the flow control parameters of frame.In the present embodiment, the HSDPA scheduler of NodeB calculates flow control parameters: the TBSIZE that maximum data packet length (Maximum MAC-d/c PDU Length) can send according to eating dishes without rice or wine determines, and satisfies protocol requirement; HS-DSCH Interval is the transmission loopback delay T1 between RNC and the NodeB, take 10ms as unit; HS-DSCH Credits HS-DSCH FP data volume, T1 and maximum data packet length computation as required; HS-DSCH Repetition Period parameter arranges and satisfies agreement and get final product.
Step s105, NodeB use capability distribution frame that described flow control parameters is sent to RNC by Iub interface and process.
Step s106 after RNC receives capability distribution frame, upgrades local flow control parameters, and according to the flow control parameters after upgrading the HS-DSCH data communication device is crossed Iub interface at next delivery time and send to NodeB.
Step s107, NodeB becomes MAC-ehs PDU to send to UE described HS-DSCH data assembling when scheduling.In the present embodiment, after the HSDPA scheduler of NodeB is received HS-DSCH FP Frame, data buffer storage is got up to wait for scheduling.If the HSDPA scheduler of NodeB is at this TTI(Transmission Time Interval, Transmission Time Interval) do not dispatch this UE, then continue to wait for that next TTI judges; If this TTI dispatches this UE, then the HS-DSCH FP data group MAC-ehs PDU of buffer memory is sent to UE.
A kind of data transmission device of the embodiment of the invention as shown in Figure 2, comprise TBsize that subscriber equipment eats dishes without rice or wine to transmit and MAC-ehs speed acquiring unit, flow control parameters acquiring unit and the data transmission unit of permission, wherein the flow control parameters acquiring unit is connected MAC-ehs speed acquiring unit with the TBsize that subscriber equipment eats dishes without rice or wine to transmit respectively and is connected with data transmission unit with permission.
The MAC-ehs speed acquiring unit of the TBsize that subscriber equipment eats dishes without rice or wine to transmit and permission is used for the CQI according to user equipment to report, calculates transmission block size TBsize that described subscriber equipment eats dishes without rice or wine to transmit and the MAC-ehs speed of permission; The flow control parameters acquiring unit is used for the flow control parameters according to the MAC-ehs rate calculations capability distribution frame of described TBsize and permission; Data transmission unit is used for according to described flow control parameters to described user device transmissions data.
The present invention calculates the MAC-ehs flow control parameters that needs according under the different channel conditions of eating dishes without rice or wine, and avoids in the channel condition variation, is eating dishes without rice or wine to transmit larger RLC packet; Simultaneously preferably in the situation, can use larger RLC PDU packet in the condition of eating dishes without rice or wine, improve throughput of system.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a data transmission method is characterized in that, said method comprising the steps of:
The CQI of A, reception user equipment to report according to high-speed physics downlink shared channel code road number and the H available horsepower of cell configuration, calculates the TBsize that described subscriber equipment eats dishes without rice or wine to transmit; According to described TBsize, calculate the MAC-ehs speed that described subscriber equipment eats dishes without rice or wine to allow;
B, according to MAC-ehs speed, the base station existing high speed descending sharing channel Frame Protocol HS-DSCH FP data volume of described permission and radio network controller to the transmission delay between the base station, calculate the data volume that the high-speed packet access dispatching need to transmit at the Iub mouth; Then the data volume and the described TBsize that transmit at the Iub mouth according to described needs, computing capability is distributed the flow control parameters of frame; The flow control parameters of described capability distribution frame comprises: the transmission loopback delay between maximum data packet length, radio network controller and the base station, high speed descending sharing channel Credits and high speed descending sharing channel repetition period;
C, according to described flow control parameters to described user device transmissions data.
2. data transmission method as claimed in claim 1 is characterized in that, described step C specifically comprises:
C1, base station are used capability distribution frame that described flow control parameters is sent to radio network controller and are processed;
C2, wireless network controller updates flow control parameters, and the flow control parameters after next delivery time is according to renewal sends to the base station with high speed descending sharing channel Frame Protocol data;
C3, base station become the MAC-ehs protocol Data Unit to send to subscriber equipment described high speed descending sharing channel Frame Protocol data assembling when scheduling.
3. a data transmission device is characterized in that, described device comprises:
The MAC-ehs speed acquiring unit of the TBsize that subscriber equipment eats dishes without rice or wine to transmit and permission, be used for receiving the CQI of user equipment to report, according to high-speed physics downlink shared channel code road number and the H available horsepower of cell configuration, calculate the TBsize that described subscriber equipment eats dishes without rice or wine to transmit; According to described TBsize, calculate the MAC-ehs speed that described subscriber equipment eats dishes without rice or wine to allow;
The flow control parameters acquiring unit, be used for according to MAC-ehs speed, the base station existing high speed descending sharing channel Frame Protocol HS-DSCH FP data volume of described permission and radio network controller to the transmission delay between the base station, calculate the data volume that the high-speed packet access dispatching need to transmit at the Iub mouth; Then the data volume and the described TBsize that transmit at the Iub mouth according to described needs, computing capability is distributed the flow control parameters of frame; The flow control parameters of described capability distribution frame comprises: the transmission loopback delay between maximum data packet length, radio network controller and the base station, high speed descending sharing channel Credits and high speed descending sharing channel repetition period;
Data transmission unit is used for according to described flow control parameters to described user device transmissions data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910260236 CN101795469B (en) | 2009-12-25 | 2009-12-25 | Data transmission method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910260236 CN101795469B (en) | 2009-12-25 | 2009-12-25 | Data transmission method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101795469A CN101795469A (en) | 2010-08-04 |
| CN101795469B true CN101795469B (en) | 2013-03-27 |
Family
ID=42587842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910260236 Expired - Fee Related CN101795469B (en) | 2009-12-25 | 2009-12-25 | Data transmission method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101795469B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088715B (en) * | 2011-01-20 | 2015-02-04 | 大唐移动通信设备有限公司 | Packet segmentation method and equipment |
| WO2014082220A1 (en) * | 2012-11-28 | 2014-06-05 | 华为技术有限公司 | Air interface rate adjusting method, network-side device and user equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1960199A (en) * | 2005-11-01 | 2007-05-09 | 上海原动力通信科技有限公司 | Multi antennae transmission method |
| CN101132227A (en) * | 2006-08-23 | 2008-02-27 | 大唐移动通信设备有限公司 | Monitoring method and system for wireless communication signal channel quality |
| WO2008114134A2 (en) * | 2007-03-20 | 2008-09-25 | Nokia Corporation | Adaptive modulation in a wireless network |
| CN101277227A (en) * | 2008-03-28 | 2008-10-01 | 中兴通讯股份有限公司 | Method for testing high speed downstream packet access ultimate throughput |
| DE102007044558A1 (en) * | 2007-07-26 | 2009-01-29 | Volkswagen Ag | Data rate and packet size adjusting method for wireless local area network radio channel in Car2X-network, involves providing subscribers, and reducing data rate and packet size with diminishing signal quality |
-
2009
- 2009-12-25 CN CN 200910260236 patent/CN101795469B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1960199A (en) * | 2005-11-01 | 2007-05-09 | 上海原动力通信科技有限公司 | Multi antennae transmission method |
| CN101132227A (en) * | 2006-08-23 | 2008-02-27 | 大唐移动通信设备有限公司 | Monitoring method and system for wireless communication signal channel quality |
| WO2008114134A2 (en) * | 2007-03-20 | 2008-09-25 | Nokia Corporation | Adaptive modulation in a wireless network |
| DE102007044558A1 (en) * | 2007-07-26 | 2009-01-29 | Volkswagen Ag | Data rate and packet size adjusting method for wireless local area network radio channel in Car2X-network, involves providing subscribers, and reducing data rate and packet size with diminishing signal quality |
| CN101277227A (en) * | 2008-03-28 | 2008-10-01 | 中兴通讯股份有限公司 | Method for testing high speed downstream packet access ultimate throughput |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101795469A (en) | 2010-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100574178C (en) | Realize equipment, the system and method for multi-carrier-wave high-speed down-converter grouped accessing business | |
| CN100571201C (en) | Control station device, base station apparatus, terminal installation, packet communication system and block communication method | |
| US9118476B2 (en) | Transmission control method | |
| CN101288247B (en) | Method and apparatus for transmitting/receiving control information of user equipment for uplink data transmission | |
| CN101843157B (en) | Buffer status reporting based on radio bearer configuration | |
| CN100449981C (en) | Mixing automatic retransmission method in accessing down going packet in high speed and multiple carriers | |
| CN101350708B (en) | Mixing automatic re-transmission method and apparatus for multi-carrier high speed up packet access | |
| CN100486252C (en) | Data parallel dispatch system and method for supporting high-speed down group access with multiple carrier wave | |
| CN108702256A (en) | For the method crossfire is transmitted to plurality of wireless communication devices from a wireless communication device to be avoided by negative confirmation indicator (NACK) in the wireless network | |
| CN102223205A (en) | Radio transmission device and radio transmission method | |
| CN1954521A (en) | Method and apparatus for scheduling enhanced uplink dedicated channels in a mobile communication system | |
| KR20080019703A (en) | Method and apparatus for control of enhanced dedicated channel transmissions | |
| CN101094448A (en) | Method and apparatus for handling downlink data upon handover in a wireless communications system | |
| CN102655447A (en) | Uploading data transmission method and device | |
| WO2009117961A1 (en) | Method, system and device for transmitting data | |
| CN102271364B (en) | Data packet transmission method, device and system | |
| CN102739349A (en) | Method and device for frame confirmation | |
| CN102843227B (en) | A kind of based on MAC layer repeating method and device | |
| CN101331720B (en) | Method and apparatus for selecting a transport format combination | |
| CN101360262B (en) | Control method and apparatus for sharing resource in communication system | |
| CN103281167A (en) | Mixed automatic retransmission method based on LTE downlink system | |
| CN101795469B (en) | Data transmission method and device | |
| CN102088715B (en) | Packet segmentation method and equipment | |
| Maqhat et al. | Performance analysis of fair scheduler for A-MSDU aggregation in IEEE802. 11n wireless networks | |
| CN104641586A (en) | Method for automatic retransmission, user equipment, and base station |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170920 Address after: 101, room 2, unit 3, building No. 338, West West Road, Leling, Shandong, Dezhou 253600, China Patentee after: You Linhui Address before: 518057 Nanshan District Guangdong high tech Industrial Park, South Road, science and technology, ZTE building, Ministry of Justice Patentee before: ZTE Corporation |
|
| TR01 | Transfer of patent right | ||
| CB03 | Change of inventor or designer information |
Inventor after: You Linhui Inventor before: Yao Wenjun |
|
| CB03 | Change of inventor or designer information | ||
| CP02 | Change in the address of a patent holder |
Address after: 542500 intersections of Yinshan North Road and Yingbin Road, Gongcheng County, Guilin, the Guangxi Zhuang Autonomous Region Patentee after: You Linhui Address before: 101, room 2, unit 3, building No. 338, West West Road, Leling, Shandong, Dezhou 253600, China Patentee before: You Linhui |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 101, room 2, unit 3, building No. 338, West West Road, Leling, Shandong, Dezhou 253600, China Patentee after: You Linhui Address before: 542500 intersections of Yinshan North Road and Yingbin Road, Gongcheng County, Guilin, the Guangxi Zhuang Autonomous Region Patentee before: You Linhui |
|
| CP02 | Change in the address of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20171225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |