Unlock instant, AI-driven research and patent intelligence for your innovation.

Method, base station, relay station and terminal for sending relay system data

A data sending method and technology of a relay system, applied in the field of data sending

Inactive Publication Date: 2011-05-04
SHANGHAI HUAWEI TECH CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When using the relay station for data transmission, the base station must send the service content to be transmitted to the relay station in advance, and then transmit at the same time as the relay station, so that the same service information can be transmitted in the base station The wireless link is repeatedly transmitted twice, wasting limited wireless resources, and at the same time, the terminal does not get the gain of the two transmissions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method, base station, relay station and terminal for sending relay system data
  • Method, base station, relay station and terminal for sending relay system data
  • Method, base station, relay station and terminal for sending relay system data

Examples

Experimental program
Comparison scheme
Effect test

no. 3 approach

[0044] The sending unit 302 is configured to send out the first symbol stream and the second symbol stream obtained by the processing unit 301 respectively. In the first stage, the first symbol stream is sent to the relay station and / or the terminal, and after the terminal receives the first symbol stream, it is stored in the data area; after the relay station receives the first symbol stream, it is stored in the In the data area to be forwarded, and generate a third symbol stream with the same reliability as the second symbol stream according to the received first symbol stream; send the second symbol stream, and send the second symbol stream after sending the first symbol stream for a period of time flow, the interval cannot be shorter than the relay station’s transceiving and switching time, otherwise it cannot satisfy the relay station’s transceiving and switching; the interval cannot be longer than the service processing time and the end user’s combination time for low-rel...

no. 4 Embodiment approach

[0049] The sending unit 403 is configured to simultaneously send the third symbol stream generated by the information processing unit 402 when the base station sends the second symbol stream;

[0050] Wherein, the reliability of the first symbol stream is different from the reliability of the second symbol stream; the reliability of the third symbol stream is the same as that of the second symbol stream.

[0051] In the relay station in this specific embodiment, the first symbol stream sent by the base station is first received, and the third symbol stream with the same reliability as the second symbol stream is generated according to the first symbol stream, and then sent while the base station sends the second symbol stream The received first symbol stream ensures that terminal users who are within the coverage of the base station but have not received the first symbol stream and terminal users outside the coverage of the base station can receive the symbol stream for impleme...

Embodiment approach

[0055] The reliability of the first symbol stream and the second symbol stream are different; the reliability of the second symbol stream and the third symbol stream are the same.

[0056] When the terminal is located within the coverage of the base station, the terminal successively receives the first symbol stream and the second symbol stream sent by the base station, and combines the two received symbol streams. The way of combining can be but not limited to: combine the received The two symbol streams are demodulated and decoded to obtain two source bit streams, which are combined according to the average signal-to-noise ratio of each bit, and the bit stream with the larger average signal-to-noise ratio is taken; after processing by the receiving end, two bit streams of the same length are obtained, If there is no error, the two bit streams are the same. When an error occurs, the bit value at a certain position may be inconsistent in the two bit streams. At this time, the b...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the communication field and discloses a method for sending data in a relay system. The method comprises the steps as follows: service information to be sent is processed to obtain a first symbolic stream and a second symbolic stream; the first symbolic stream and the second symbolic stream have different reliabilities; a base station sends the first symbolic stream; a relay station receives the first symbolic stream and generates a third symbolic stream according to the first symbolic stream; the third symbolic stream and the second symbolic stream have the same reliability; after the base station sends the first symbolic stream, the base station sends the second symbolic stream after a period of time; and the relay station sends the third symbolic stream at the same time. The invention also discloses a base station, a relay station and a terminal. By adopting the technical proposal provided by the invention, the service information to be sent is processed into the symbolic streams with different reliabilities and the symbolic streams is sent at different moments, thereby avoiding sending same data twice and saving wireless resource of a system.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a data sending technology in a relay system. Background technique [0002] With the development of communication technology, a large number of multimedia services continue to emerge. When these multimedia services are transmitted, the data volume is large, the duration is long, and the delay is sensitive. In order to effectively utilize mobile network resources, various standardization organizations have proposed the concepts of broadcast and multicast services, such as: multimedia broadcast and multicast services ( Multimedia Broadcast and Multicast Service, MBMS); Broadcast and Multicast Service (BCMCS) proposed in the 3rd Generation Partnership Project 2 (3rd Generation Parrnership Project, 3GPP2) organization; proposed in the IEEE 802.16e organization broadcast multicast service (Multi-Broadcast Service, MBS), etc. The above-mentioned broadcast and multicast services...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/18H04L27/34
Inventor 张霄竞杨炼
Owner SHANGHAI HUAWEI TECH CO LTD