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HS-SCCH signaling and HS-SICH signaling of TD-HSDPA MIMO system

A HS-SCCH and signaling technology, applied in the field of signaling design, can solve the problems of not being able to provide sufficient support for HS-DSCH, wasting power consumption, and not being able to support

Inactive Publication Date: 2010-02-10
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, in the existing HSDPA system, UEs may need to listen to 4 HS-SCCHs at most, so each UE may need to blindly detect 8 HS-SCCHs according to the HS-SCCH designed according to the above scheme, and the power consumption is seriously wasted.
At the same time, the terminal may need to feed back the CQI and ACK / NACK of all transmit antennas, and the current HS-SICH can only feed back one channel of information, so it cannot provide sufficient support for HS-DSCH
In addition, the HS-SCCH designed above only supports QPSK and / or 16QAM, but cannot support higher order modulation (such as 64QAM, etc.) with higher peak data rate and spectral efficiency

Method used

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  • HS-SCCH signaling and HS-SICH signaling of TD-HSDPA MIMO system
  • HS-SCCH signaling and HS-SICH signaling of TD-HSDPA MIMO system
  • HS-SCCH signaling and HS-SICH signaling of TD-HSDPA MIMO system

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Embodiment Construction

[0128] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0129] The present invention proposes multiple embodiments of the HS-SCCH signaling of the TD-HSDPA MIMO system, and these embodiments of the HS-SCCH signaling all include HS-SCCH signaling for single-stream transmission and HS-SCCH signaling for dual-stream transmission , the HS-SCCH signaling for single-stream transmission and the HS-SCCH signaling for dual-stream transmission have the same information bit length, but the information bit content is different, so they have a unified CRC code and UE identification number mask, channel coding, and rate matching , interleaving, physical channel segmentation and physical channel mapping process, through the design of this information bit to distinguish single-stream transmission and dual-stream transmission, avoiding the blind detection of single-stream and dual-stream HS-SCCH by the terminal, thereby savin...

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Abstract

The invention discloses HS-SCCH signaling and HS-SICH signaling of a TD-HSDPA MIMO system for avoiding a terminal carrying out blind detection for single-flow and double-flow HS-SCCH. The invention adopts the technical scheme that the transmission rate of the system can be effectively increased by introducing MIMO, the signaling comprises a single / double-flow identification information bit for identifying single flow and double flow, the lengths of the information bits of HS-SCCH of single-flow transmission and HS-SCCH of double-flow transmission are equal, and different modulation modes are indicated. The HS-SCCH signaling and the HS-SICH signaling of the TD-HSDPA MIMO system are applied in the field of mobile communication.

Description

technical field [0001] The invention relates to signaling design, in particular to designing HS-SCCH signaling and HS-SICH signaling of a TD-HSDPA MIMO system. Background technique [0002] With the continuous development of communication technology and the increasing requirements of users for service quality, the data transmission rate of up to 2Mbit / s defined by the 3rd Generation Partnership Project (3GPP) standard before Release 4 has gradually failed to meet the needs of users. The demand for high-speed data services. In this case, 3GPP introduced the High Speed ​​Downlink Packet Access (HSDPA) technology in the Release 5 specification. [0003] HSDPA is an enhanced solution proposed by 3GPP Release 5, the main purpose is to support high-speed packet data services, and to obtain lower time delay, higher system throughput and stronger QoS guarantee. From a technical point of view, HSDPA enhances the air interface by introducing a high-speed downlink shared channel (HS-...

Claims

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Application Information

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IPC IPC(8): H04W76/02H04B7/26
Inventor 周加铳师延山石璟
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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