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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: 2011-05-18
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

[0058] As shown in FIG. 4 , an 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, the data packet is transmitted through the two frame units of the uplink subframe whose frame index number is 1, and the number of hops is 1.

[0059] 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 subchannels 59, 122, 143, 225, 308, and 398 of the physical layer.

[0060] The latter data block jumps by 1 on the logical resources of the previous data unit, and the logical resources after the jump correspond to the six subchannels 60, 123, 144, 226, 309, and 399 of the physical layer.

[0061] Map the logical resources of the previous data block to six sub-channels of the physical layer 59, 122, 143, 225, 308, 398; map the logical resources of the next data block to the physical layer ...

Embodiment 2

[0071] As shown in FIG. 4 , an existing data packet is divided into two data blocks, which need to be transmitted through an extended frame. Assume that one uplink subframe includes two frame units, and the data packet is transmitted through the two frame units of the uplink subframe whose frame index number is 1.

[0072] The previous frame unit adopts the current uplink replacement formula:

[0073] Tile(s,n)=N subchannels n+(Pt[(s+n)mod N subchannels ]+UL_Permbase) mod N subchannels

[0074] Among them, s is a subchannel index; n is a tile index in a subchannel; UL_Permbase is an integer allocated by the management entity; Pt is a tile replacement function; Nsubchannels is the number of subchannels.

[0075] 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,...

Embodiment 3

[0088] As shown in FIG. 4 , an existing data packet is divided into two data units, which need to be transmitted through an extended frame. Assume that one uplink subframe includes two frame units, and the data packet is transmitted through the two frame units of the uplink subframe whose frame index number is 1.

[0089] The previous frame unit adopts the current uplink replacement formula:

[0090] Tile(s,n)=N subchannels n+(Pt[(s+n)mod N subchannels ]+UL_Permbase) mod N subchannels

[0091] Among them, s is a subchannel index; n is a tile index in a subchannel; UL_Permbase is an integer allocated by the management entity; Pt is a tile replacement function; Nsubchannels is the number of subchannels.

[0092] 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, ...

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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 invention relates to the field of mobile communication, in particular to a method, device and system for data instruction transmission between a terminal and a base station in a cell. Background technique [0002] In a World Interoperability for Microwave Access (WiMAX, World Interoperability for Microwave Access) system, a user at the edge of a cell needs to transmit a data packet in blocks due to power limitation. As shown in FIG. 2 , the current block transmission of a data packet is realized in the form of an extended frame, that is, two or more frames are continuously allocated in frame units (the frame unit refers to the smallest scheduling unit in a frame) , several sub-channel resources are used for the terminal block data packets. [0003] As shown in Figure 1, there is also a persistent assignment technology in the prior art, which uses persistent assignment messages to periodically assign several subchannel resources in a certain frame ...

Claims

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Application Information

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Patent Type & Authority Patents(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