Device-to-device (d2d) cross link power control

A cross-link and power technology, used in power management, connection management, network topology, etc.

Active Publication Date: 2015-02-11
INTERDIGITAL PATENT HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, management of additional radio transmissions or links by the device (e.g., XL transmissions or links combined with an uplink) can currently lead to problems with scheduling between links or transmissions, resource allocation of links or transmissions, Issues associated with link or transmission power control, etc.

Method used

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  • Device-to-device (d2d) cross link power control
  • Device-to-device (d2d) cross link power control
  • Device-to-device (d2d) cross link power control

Examples

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Embodiment Construction

[0013] Exemplary embodiments will be described in detail below with reference to the respective drawings. While this description provides detailed examples of possible implementations, it should be noted that the detailed description is for illustration only and is not intended to limit the scope of the application.

[0014] Systems and methods may be provided for managing, eg, controlling, power of parallel or simultaneous transmission links (eg, uplink and / or cross-link (XL)). For example, in an embodiment, power control may adjust the maximum aggregate cross-link transmit power and per-TTI dynamic transmit power for cross-link physical control and data channels, may control simultaneous uplink and / or cross-link physical channel Priority-based power reallocation and signal transmission between a given aggregated device transmit power limit, which can be based on cross-chaining including path loss, signal and interference strength, reference signal SINR and data channel BLER,...

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Abstract

Device-to-device (D2D) cross link power control systems and methods may be disclosed. For example, a device such as a UE or WTRU may determine whether it may have simultaneous transmissions where at least one of the transmissions may include a cross link transmission. The device may further determine whether a total transmit power of the simultaneous transmissions may exceed a maximum transmit power of the device. If the device may have simultaneous transmissions and such transmissions may exceed the maximum transmit power, the device may reallocate power based on a priority or priority setting. The device may further determine a maximum cross link power, a maximum device power, and a cross link transmit power level such that the device may further control the power for transmissions based thereon.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Application 61 / 653,765, filed May 31, 2012, and U.S. Provisional Application 61 / 785,033, filed March 14, 2013; the contents of both applications are hereby incorporated by reference Combine with this. Background technique [0003] Currently, when a device such as a UE participates in Device-to-Device (D2D) communication connected to multiple applications such as Advanced Topology (AT) applications, the device may operate on two transports or transport links in parallel. For example, a device may operate on an uplink transmission to a network element, such as an eNB, and another transmission, such as a cross-link (XL) transmission, to another device, such as another UE. Unfortunately, management of additional radio transmissions or links by the device (e.g., XL transmissions or links combined with an uplink) can currently lead to problems with scheduling between lin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/28H04W52/34H04W52/38H04W76/02H04W84/18H04W88/06
CPCH04W52/383H04W76/023H04W84/18H04W52/367H04W88/06H04W52/346H04W76/025H04W52/281H04W52/365H04W52/242H04W52/386H04W92/18H04W76/14H04W76/15
Inventor T·邓G·S·史特恩贝格P·马里内尔G·波伊陶M·鲁道夫
Owner INTERDIGITAL PATENT HLDG INC
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