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Data cell indication transmission method, apparatus and system in expansion frame or continuous assignment

A technology of data unit and transmission method, which is applied in the field of mobile communication, and can solve problems such as sub-channel poor channel environment, data transmission failure, and low sub-channel transmission quality, so as to improve the transmission success rate and reduce inter-cell interference

Active Publication Date: 2009-07-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the data transmission between the terminal and the base station in the above cell, the inventor found at least the following problems in the prior art: whether it is extended frame transmission or continuous assignment transmission, the sub-frames allocated to the terminal in different frames The channel resources are the same, so the following problems are prone to occur: in the cell, some sub-channels may face a very poor channel environment, so that the transmission quality of this sub-channel is very low. If data is always transmitted on this sub-channel, likely to cause the data transfer to fail
In addition, allocating the same subchannel resources to terminals in different frames will cause the same subchannel to be continuously occupied. The longer the occupation time, the higher the probability that adjacent cells will use the frequency band of the subchannel at the same time. The same frequency band will cause interference between cells

Method used

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  • Data cell indication transmission method, apparatus and system in expansion frame or continuous assignment
  • Data cell indication transmission method, apparatus and system in expansion frame or continuous assignment
  • Data cell indication transmission method, apparatus and system in expansion frame or continuous assignment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Such as Figure 4 As shown, the existing data packet is divided into two data blocks, which need to be transmitted through an extended frame. Assuming that an uplink subframe includes two frame units, a data packet is transmitted through the two frame units of the uplink subframe whose frame index is 1, and the number of jumps is 1.

[0056] At the logical layer on the user side, the logical resources allocated by the previous data block in the previous frame unit correspond to the six sub-channels 59, 122, 143, 225, 308, and 398 of the physical layer.

[0057]The latter data block jumps 1 to the logical resource of the previous data unit, and the logical resource after the jump corresponds to the six sub-channels 60, 123, 144, 226, 309, and 399 of the physical layer.

[0058] Map the logical resources of the previous data block to the six sub-channels 59, 122, 143, 225, 308, and 398 of the physical layer; map the logical resources of the next data block to the 60, 123, 144...

Embodiment 2

[0068] Such as Figure 4 As shown, the existing data packet is divided into two data blocks, which need to be transmitted through an extended frame. Assuming that one uplink subframe includes two frame units, a data packet is transmitted through the two frame units of the uplink subframe with the frame index number 1.

[0069] The previous frame unit uses the current uplink replacement formula:

[0070] Tile(s, n)=N subchannels ·N+(Pt[(s+n)mod N subchannels ]+UL_Permbase)mod N subchannels

[0071] Where s is the sub-channel index; n is the tile index in a sub-channel; UL_Permbase is an integer allocated by the management entity; Pt is the tile permutation function; N subchannel Is the number of sub-channels.

[0072] When s=3, UL_Permbase=2, N subchannels = 70, TilePermutation = {6, 48, 58, 57, 50, 1, 13, 26, 46, 44, 30, 3, 27, 53, 22, 18, 61, 7, 55, 36, 45, 37, 52,15,40,2,20,4,34,31,10,5,41,9,69,63,21,11,12,19,68,56,43,23,25,39,66, 42, 16, 47, 51, 8, 62, 14, 33, 24, 32, 17, 54, ...

Embodiment 3

[0085] Such as Figure 4 As shown, the existing data packet is divided into two data units, which need to be transmitted through an extended frame. Assuming that one uplink subframe includes two frame units, a data packet is transmitted through the two frame units of the uplink subframe with the frame index number 1.

[0086] The previous frame unit uses the current uplink replacement formula:

[0087] Tile(s, n)=N subchannels ·N+(Pt[(s+n)mod N subchannels ]+UL_Permbase)mod N subchannels

[0088] Where s is the sub-channel index; n is the tile index in a sub-channel; UL_Permbase is an integer allocated by the management entity; Pt is the tile permutation function; N subchannel Is the number of sub-channels.

[0089] When s=3, UL_Permbase=2, N subchannels = 70, TilePermutation = {6, 48, 58, 57, 50, 1, 13, 26, 46, 44, 30, 3, 27, 53, 22, 18, 61, 7, 55, 36, 45, 37, 52,15,40,2,20,4,34,31,10,5,41,9,69,63,21,11,12,19,68,56,43,23,25,39,66, 42, 16, 47, 51, 8, 62, 14, 33, 24, 32, 17, 54, 2...

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Abstract

The present invention discloses a method for transmitting data unit indication in expanding frame or continuously assigning, a device and a system thereof. The invention relates to the field of mobile communication, and settles the problem of likely data transmission failure or inter-cell interference caused by the long-time engaging one or a plurality of same sub-channels by the data package in prior art. The method provided by the embodiment of the invention comprises the following steps: receiving broadcast information, analyzing out the jump information; distributing the previous data unit to be transmitted by the terminal to one or a plurality of sub-channels of a certain frame unit; and distributing the latter data unit to be transmitted by the terminal to one or a plurality of sub-channels of the other frame unit, wherein the one or the plurality of sub-channels of the other frame unit are obtained through the jumping of one or a plurality of sub-channels of the certain frame unit. The method, device and system of the invention are suitable for various mobile communication networks.

Description

Technical field [0001] The present invention relates to the field of mobile communication, and in particular to a method, device and system for data indication transmission between a terminal and a base station in a cell. Background technique [0002] In the World Interoperability for Microwave Access (WiMAX, World Interoperability for Microwave Access) system, users at the edge of a cell need to transmit a data packet in blocks due to power limitations. Such as figure 2 As shown, the existing block transmission of a data packet is realized in the form of an extended frame, that is, frame units of two or more frames are continuously allocated (the frame unit refers to the smallest scheduling unit in a frame), and several sub Channel resources are used by data packets divided into blocks by the terminal. [0003] Such as figure 1 As shown, there is also a continuous assignment technology in the prior art, which uses continuous assignment messages to periodically assign several s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/34H04W48/18
Inventor 孙铭扬刘珏君顾雪芹徐宏亮
Owner HUAWEI TECH CO LTD