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HS-SICH information bearing and encoding method

An encoding method and information bearing technology, applied in the direction of error prevention/detection using return channel, error prevention/detection through diversity reception, etc., can solve problems such as poor channel adaptation, poor performance, and inaccurate scheduling. , to avoid inaccurate scheduling, improve error correction capability, and improve transmission performance

Active Publication Date: 2009-02-04
北京万海云科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the TBS index value is large, the corresponding code rate changes greatly. At this time, the code rate reported by the UE to the NodeB through the TBS index value in the HS-SICH channel will be quite different from the actual code rate requirement. The scheduling is inaccurate, and the channel cannot be well adapted; when the TBS index value is low, the corresponding bit rate change is too small, submerged in the measurement error, so it is not necessary to divide it into such a detailed
It can be seen that the performance of the existing way of transmitting RTBS ​​in CQI is poor

Method used

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  • HS-SICH information bearing and encoding method
  • HS-SICH information bearing and encoding method

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Experimental program
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Embodiment 1

[0072] In this embodiment, a coding scheme similar to the HS-SICH in the existing R5 specification of 1.28Mcps TDD HSDPA is used, that is, each part of the signaling information on the MIMO HS-SICH channel is separately coded, and then the coded output is multiplexed , and mapped to physical channels. In this way, the best possible coding scheme can be selected for each part of the signaling.

[0073] figure 2 is a schematic diagram of the encoding scheme in this embodiment.

[0074] 1. Dual stream HS-SICH

[0075] ACK / NACK information: UE can know the number of data streams by receiving HS-SCCH, and confirm its correctness after receiving single-stream or dual-stream data, and repeatedly encode the ACK / NACK information of two data streams Obtain the encoding result of ACK / NACK information. Specifically, each data stream can use 1 bit to represent ACK / NACK information, and separately encode the ACK / NACK information of the two data streams; use (18,1) for the 1-bit ACK / NAC...

Embodiment 2

[0096] In this embodiment, the ACK / NACK and CSI / CQI on the HS-SICH channel are firstly coded repeatedly, then multiplexed and concatenated, and finally jointly coded.

[0097] image 3 is a schematic diagram of the encoding scheme in this embodiment.

[0098] 1. Dual stream HS-SICH

[0099] ACK / NACK information: UE can know the number of data streams by receiving HS-SCCH, and confirm its correctness after receiving dual-stream data, then repeatedly encode 2-bit ACK / NACK information, and output 2M bits as ACK / NACK information encoding result; wherein, the value range of M is 3 to 5, and the specific M value can be selected according to the encoding and receiving performance requirements.

[0100] CQI information: Concatenate the 5-bit CQI information of the two data streams and output 10 bits as the CQI information encoding result.

[0101] Perform HS-SICH multiplexing of 6-bit to 10-bit ACK / NACK information encoding results and 10-bit CQI information encoding results to obt...

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Abstract

The invention discloses an information bearing and encoding method of HS-SICH, comprising: a UE acquires the respective channel quality indication information and ACK / NACK information of two data flows after receiving double-flow data under an MIMO mode, and encodes the acquired channel quality indication information and the ACK / NACK information which are transmitted to the UE through HS-SICH, wherein, the HS-SICH does not bear RMF information any more. The method can give a feedback on the channel quality information and ACK / NACK information of double flows under the MIMO mode.

Description

technical field [0001] The present invention relates to a data transmission technology on HS-SICH in multiple input multiple output (Multiple Input Multiple Output, MIMO) mode, in particular to an information bearing and encoding method of HS-SICH. Background technique [0002] The HSDPA technology in HSPA is the enhancement and evolution of the wireless part of the TD-SCDMA standard, which significantly improves the transmission rate of downlink data. The newly added uplink control physical channel HS-SICH in TDD HSDPA is responsible for carrying HARQ confirmation information (ACK / NACK) and channel quality indication information (CQI) for data on the HS-DSCH channel, and also carries TPC and SS information, But no TFCI. One HS-SICH channel occupies one uplink SF16 code channel, and all use time slot format#5. Currently, the signaling carried by the HS-SICH is shown in Table 1. [0003] Table 11.28Mcps TDD HSDPA HS-SICH channel contains signaling information [0004] ...

Claims

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Application Information

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IPC IPC(8): H04L1/06H04L1/16H04L1/18
Inventor 白杰常永宏赵训威
Owner 北京万海云科技有限公司
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