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Systems and methods for improved uplink coverage

A link and receiving unit technology, applied in transmission systems, digital transmission systems, error prevention/detection using return channels, etc., can solve problems such as insufficiently increasing LTE link performance and coverage

Active Publication Date: 2014-12-31
INTERDIGITAL PATENT HLDG INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Unfortunately, current methods, scenarios, and / or techniques may not sufficiently increase LTE link performance and coverage, and, in particular, may provide opportunities to improve reception or coverage of UL transmissions

Method used

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  • Systems and methods for improved uplink coverage
  • Systems and methods for improved uplink coverage
  • Systems and methods for improved uplink coverage

Examples

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Embodiment Construction

[0028] A detailed description of example embodiments will now be described with reference to the various drawings. While this description provides detailed examples of possible implementations, it should be noted that these details are intended to be illustrative, and in no way limiting the scope of the application.

[0029] Figure 1A is a diagram of an example communication system 100 in which one or more disclosed embodiments may be practiced. Communication system 100 may be a multiple access system that provides content, such as voice, data, video, messaging, broadcast, etc., to multiple wireless users. Communication system 100 may enable multiple wireless users to access such 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...

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Abstract

Systems and method are specified to improve the reception of UL transmission, for example in power or coverage limited situations. A WTRU may modify procedures to increase the available signal energy for reception at an eNB and / or to make more efficient use of the available signal energy at the receiver for processing UL transmissions. Example methods for increasing UL link coverage may include modifying HARQ timing (e.g., shorter HARQ), using longer TTIs, use of dedicated PUSCH allocations, use of new PUSCH modulations, enhanced reference signal design, UL macro diversity reception for PUSCH, utilizing protocol reduction techniques, ensuring in-order packet delivery, and / or utilizing a configuration for coverage limited / power limited modes of operation. The proposed methods may be applied individually or in any combination.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Patent Application No. 61 / 590,292 filed January 24, 2012, U.S. Provisional Patent Application No. 61 / 611,799 filed March 16, 2012, and U.S. Provisional Patent Application No. 61 / 611,799 filed March 16, 2012 The benefit of Application No. 61 / 611,972, the contents of which are hereby incorporated by reference in their entirety. Background technique [0003] Link performance and coverage of Long Term Evolution (LTE) Release 10 downlink (DL) and / or uplink (UL) control and data channels for noise-limited scenarios has been studied by using various methods, scenarios, and / or techniques. solved in every way. For example, UL Voice over Internet Protocol (VoIP) link performance when using LTE radio technology is comparable to existing 3G High Speed ​​Packet Access (HSPA) radio technology. In order to match the link coverage performance of 3G HSPA UL, the LTE protocol can be modified to i...

Claims

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Application Information

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IPC IPC(8): H04L1/18H04L5/00
CPCH04L1/1822H04L1/1887H04L1/1864H04L1/1893H04L1/08H04W72/21H04W72/23H04L1/1678H04W72/0446H04L5/0007
Inventor M·鲁道夫P·马里内尔D·帕尼G·佩尔蒂埃C·凯夫L·R·耶尔M·U·法兹里
Owner INTERDIGITAL PATENT HLDG INC
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