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Send feedback for multiple downlink carriers

A feedback information, multiple output technology, applied in the direction of transmission modification based on link quality, error prevention/detection using return channel, multi-frequency code system, etc.

Inactive Publication Date: 2016-04-27
INTERDIGITAL PATENT HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, current technology does not provide for sending feedback information for multiple carriers (e.g. three or more carriers)

Method used

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  • Send feedback for multiple downlink carriers
  • Send feedback for multiple downlink carriers
  • Send feedback for multiple downlink carriers

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0027] Figure 1A is a diagram of an example communication system 100 in which one or more disclosed embodiments may be practiced. The communication system 100 may be a multiple access system that can provide content, such as voice, data, video, messaging, broadcast, etc., to multiple wireless users. The communication system 100 enables multiple wireless users to access the aforementioned content by sharing system resources (including wireless bandwidth). For example, communication system 100 may employ one or more channel access methods such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal FDMA (OFDMA), Single Carrier FDMA (SC-FDMA), etc.

[0028] Such as Figure 1A As shown, communication system 100 may include wireless transmit / receive units (WTRUs) 102a, 102b, 102c, 102d, radio access network (RAN) 104, core network 106, public switched telephone network (PSTN) 108, Internet 110, and other...

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PUM

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Abstract

Feedback information for multiple serving cells is transmitted on the High Speed ​​Dedicated Physical Control Channel (HS-DPCCH). A slot format for transmitting feedback information is determined based on the number of configured secondary serving cells and whether multiple-input multiple-output (MIMO) is configured in the serving cell. When two secondary serving cells are configured and MIMO is configured in at least one of the configured two secondary serving cells, or when three secondary serving cells are configured, the spreading factor is reduced to 128. The serving cells are divided into multiple feedback groups, each feedback group having one or more serving cells. Channel coding may be applied to the feedback information of the feedback group. The generated encoded feedback information for the feedback group is concatenated to generate composite feedback information.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Application No. 61 / 304,379, filed February 12, 2010; U.S. Provisional Application No. 61 / 320,592, filed April 2, 2010; U.S. Provisional Application No. 61 / 329,706, filed April 30, 2010; U.S. Provisional Application No. 61 / 356,437, filed June 18, 2010; U.S. Provisional Application No. 61 / 359,683 filed on 29th; U.S. Provisional Application No. 61 / 374,187 filed on August 16, 2010; filed on August 20, 2010 , the benefit of U.S. Provisional Application No. 61 / 375,785, the entire contents of which are hereby incorporated by reference. Background technique [0003] In part of Release 8 of the 3rd Generation Partnership Project (3GPP) Wireless Code Division Multiple Access (WCDMA), simultaneous use of two High Speed ​​Downlink Packet Access (HSDPA) downlink carriers was introduced. This feature enhances bandwidth utilization via frequency diversity and resource pooling. As data usage c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/16H04L5/00H04B7/06
CPCH04L1/0026H04L1/0028H04L1/0073H04L1/08H04L1/1671H04L1/1812H04L5/0053H04L2025/03808H04W52/325H04L1/18H04L27/26H04W72/04
Inventor L·蔡B·佩尔蒂埃H·O·张郗风君李岩Y·K·李C·R·凯夫
Owner INTERDIGITAL PATENT HLDG INC