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A transmission method for data packet

A transmission method and data packet technology, applied in the field of data packet transmission, can solve the problems of increasing control signaling overhead, increasing control signaling overhead, etc., to achieve the effect of avoiding conflicts and reducing the probability of conflicts

Active Publication Date: 2012-04-25
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the purpose of semi-persistent scheduling is to reduce the overhead of control signaling. Using the above scheme of rescheduling data packets will increase the overhead of control signaling, and the probability of the first retransmission is still relatively high, which greatly offsets the The benefits of semi-persistent scheduling increase the overhead of control signaling

Method used

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  • A transmission method for data packet
  • A transmission method for data packet
  • A transmission method for data packet

Examples

Experimental program
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Embodiment 1

[0065] In this embodiment, taking the VoIP service as an example, when pre-allocating persistent scheduling resources for data packets in the active period, the base station allocates persistent scheduling resources in a period of 2N Bundling processes, and each resource period includes 2 persistent scheduling resources. Among them, N is the maximum number of Bundling processes. In configuration 0 and configuration 6, N is 3; in configuration 1, N is 2.

[0066] Figure 9 It is a schematic diagram of persistent scheduling resource distribution taking configuration 0 as an example in this embodiment. Such as Figure 9 As shown, 6 processes are a resource cycle, and each resource cycle includes 2 persistent scheduling resources, and these two persistent scheduling resources use different Bundling processes. Taking the first resource cycle as an example, TB1 uses Bundling process 1 , TB2 uses Bundling process 2, and the average time interval between TB1 and TB2, TB2 and TB3 is...

Embodiment 2

[0072] In this embodiment, still taking the VoIP service as an example, when pre-allocating persistent scheduling resources for data packets in the active period, the base station allocates persistent scheduling resources in a period of 3N Bundling processes, and each resource period includes 3 persistent scheduling resources. Among them, N is the maximum number of Bundling processes.

[0073] Figure 10 It is a schematic diagram of persistent scheduling resource distribution taking configuration 0 as an example in this embodiment. Such as Figure 10 As shown, 9 processes are one resource cycle, and each resource cycle includes 3 persistent scheduling resources, and two adjacent persistent scheduling resources use different Bundling processes, more preferably, different Bundling processes in each resource scheduling cycle Continuous scheduling resources use different Bundling processes. Taking the first resource cycle as an example, TB1 uses Bundling process 1, TB2 uses Bun...

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Abstract

The invention discloses a transmission method for data packets, which includes steps of: the base station allocates continuous scheduling resources in periodic distribution in advance, wherein each resource period includes at least two continuous scheduling resource, in each resource period, adjacent continuous scheduling resource uses different Bundling process, and the resource period is counted by the number of the Bundling processes, and when the data packets reaches the base station, the base station transmitting the data packets using the allocated continuous scheduling resource. Applying the method of the invention, conflicts between continuous scheduling resources and the primary re-transmission data packet can be avoided.

Description

technical field [0001] The invention relates to data transmission technology, in particular to a data packet transmission method. Background technique [0002] For the uplink transmission of the wireless communication system, because the transmission power of the user equipment (UE) is limited, if the UE is in a relatively bad environment, the quality of its uplink transmission is difficult to guarantee. Therefore, the LTE system introduces a multi-subframe joint scheduling scheme TTI Bundling to improve system coverage, which is mainly used to improve uplink coverage. [0003] The specific TTI Bundling is: send different redundant versions of a transport block in multiple consecutive subframes (TTI), that is, automatically perform HARQ retransmission in multiple consecutive TTIs, during which no ACK / NACK feedback is required; the bundled consecutive subframes A frame (that is, a bundle) is an independent resource, corresponding to a hybrid automatic repeat request (HARQ) p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/08H04L12/56H04W28/16H04W72/12
Inventor 谌丽李国庆
Owner DATANG MOBILE COMM EQUIP CO LTD