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Uplink power headroom reporting (PHR) method, base station (BS) and user equipment (UE)

A technology of power upside and user equipment, applied in the field of wireless technology transmission, can solve problems such as the PHR calculation method that is not further pointed out

Inactive Publication Date: 2011-11-09
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0042] However, this method does not further point out the specific PHR calculation method of the PUCCH of the LTE-A system

Method used

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  • Uplink power headroom reporting (PHR) method, base station (BS) and user equipment (UE)
  • Uplink power headroom reporting (PHR) method, base station (BS) and user equipment (UE)
  • Uplink power headroom reporting (PHR) method, base station (BS) and user equipment (UE)

Examples

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no. 1 example

[0146] According to a first embodiment of the present invention, a Power Headroom Reporting (PHR) method is proposed, such as Figure 12 As shown, a schematic diagram of the PHR method according to the first embodiment of the present invention is shown. The entire wireless cell includes the base station BS-1000 and UE-1000. The downlink component carrier frequency band (CC, component carrier) set includes DL CC1, DL CC2, DL CC3, DL CC4, and DL CC5, a total of 5 component carrier frequency bands. The link takes one UL CC, such as UL CC1. The multiple formats of the PUCCH control signaling on UL CC1 adopt the independent encoding method, and the calculation method of the PH value of multiple PUCCH transmission formats adopts the virtual PH value based on DL PCC CQI value calculation method, such as Figure 13 shown. The flowchart of the PHR method according to the first embodiment of the present invention, as Figure 14 shown, including the following steps:

[0147] Step 1: ...

no. 2 example

[0176] According to a second embodiment of the present invention, a Power Headroom Reporting (PHR) method is proposed, such as Figure 18 As shown, a schematic diagram of the PHR method according to the second embodiment of the present invention is shown. The entire wireless cell includes base station BS-1100 and UE-1100. The downlink CC set includes DL CC1, DL CC2, DL CC3, DL CC4, and DL CC5, a total of 5 unit carrier frequency bands. The uplink takes 1 UL CC. For example, UL CC1, the format of the control signaling of multiple PUCCHs adopts an independent encoding method, and the calculation method of the PH value of multiple PUCCH transmission formats adopts the virtual PH value calculation method based on the fixed PUCCH transmission format (Format 1a in this embodiment) ,Such as Figure 19 shown. The flowchart of the PHR method according to the second embodiment of the present invention, such as Figure 20 shown, including the following steps:

[0177]Step 1: UE-1100 ...

no. 3 example

[0192] According to a third embodiment of the present invention, a Power Headroom Reporting (PHR) method is proposed, such as Figure 23 As shown, a schematic diagram of a PHR method for PUSCH according to the third embodiment of the present invention is shown. The entire wireless cell includes base station BS-1200 and UE-1200. The downlink CC set includes DL CC1, DL CC2, and DL CC3, a total of 3 unit carrier frequency bands. The uplink CC set includes UL CC1, UL CC2, and UL CC3. A total of 3 unit carrier frequency bands. Among them, the number and index numbers of the downlink DL CCs in this embodiment have been selected through the above-mentioned carrier scheduling method, all 3 downlink CCs of DL CC1, DL CC2, and DL CC3 are required, and the uplink needs UL CC1, UL CC2 and UL CC3 have a total of 3 uplink CCs, and the 3 downlink CCs and the 3 uplink CCs are mapped using a one-to-one correspondence method. The format of the control signaling of multiple PUCCHs adopts an ind...

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Abstract

The invention discloses a power headroom reporting (PHR) method, a base station (BS) and user equipment (UE). In the PHR method provided by the invention, when any trigger event of PHR of a physical uplink control channel (PUCCH) and / or any trigger event of PHR of a physical uplink shared channel (PUSCH) happens, UE calculates a virtual power headroom (PH) value of the PUCCH; when an SR signal is received, the BS schedules uplink resources and determines the scheduling information required for uplink transmission of UE; the BS sends an uplink resource grant (UL Grant) signal to the UE through a physical downlink control channel (PDCCH); when the UL Grant signal is received, UE calculates a PH value of the PUSCH or a virtual PH value of the PUSCH; and UE reports the calculated virtual PH value of PUCCH and PH value of PUSCH or the calculated virtual PH value of PUCCH and virtual PH value of PUSCH to BS through the PUSCH. The method provided by the invention is characterized by simplicity, flexibility, high efficiency and easy implementation.

Description

technical field [0001] The present invention relates to the field of wireless technology transmission, in particular to a method for reporting uplink power headroom, a base station and user equipment. Background technique [0002] Since personal or mobile communication devices have been required to have the capabilities of broadband services such as multimedia services, online games, video on demand, mobile TV, and mobile Internet, wider system frequency bands, higher peak rates, and better edge service quality have become It will become an important requirement for future personal or mobile communication systems. The 3GPP (Third Generation Partnership Project) organization, as an international organization dedicated to the standardization of personal or mobile communications, began to discuss the standardization of the fourth-generation (4G) cellular communication system at the April 2008 meeting in Shenzhen, China. The LTE-Advanced (LTE-A) version is defined for the evolu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/10H04W72/12H04L1/00
Inventor 梁永明刘仁茂杨曾丁铭张应余
Owner SHARP KK
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