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Data reporting method, user equipment and base station

A technology for user equipment and base stations, applied in the field of communications, can solve problems such as affecting user services, large interference, complex signal coverage, etc., to achieve the effect of improving the success rate of demodulation and ensuring smooth development

Active Publication Date: 2012-10-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In the existing technology, in the handover area, due to the complex signal coverage and heavy interference, the user equipment signal SINR measured by the eNB may not correctly reflect the quality of the channel
Therefore, during handover, when the channel quality is often poor, the uplink still uses high-order modulation for demodulation, resulting in the failure of data demodulation that triggers the handover process, thereby affecting user services

Method used

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  • Data reporting method, user equipment and base station
  • Data reporting method, user equipment and base station
  • Data reporting method, user equipment and base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Figure 3A It is a flow chart of the data reporting method in Embodiment 1 of the present invention, the method includes:

[0033] Step S311: the user terminal equipment (UE) sends an agreed signal to the base station, and the agreed signal is used to instruct the base station to use the agreed uplink modulation mode;

[0034] In this step, the base station may be an evolved base station (eNB) in the LTE system, and the agreed method may be BPSK or QPSK uplink modulation method;

[0035] The agreed signal may be an SRI or a power headroom (HeadRoom) indicating that the base station uses the agreed uplink modulation method through a reserved bit, it may be an SRI sent periodically, or it may be a medium indicating that the base station uses an agreed uplink modulation method through a reserved bit Intervene in the control protocol data unit sub-header (MAC PDU sub-header) or use the agreed value to notify the base station of the abnormal channel quality indication using...

Embodiment 2

[0039] Figure 3B It is a flow chart of the data reporting method in Embodiment 2 of the present invention. The method includes:

[0040] Step S321: the base station receives an agreed signal from the user terminal equipment (UE), the agreed signal is used to instruct the base station to use the agreed uplink modulation mode, and the base station may be an evolved base station (eNB);

[0041] In this step, the agreed signal may be an SRI or a power headroom (HeadRoom) that indicates that the base station uses the agreed uplink modulation method through a reserved bit, may be an SRI that is sent periodically, or may indicate that the base station uses an agreed upon modulation mode through a reserved bit. The media access control protocol data unit sub-header (MAC PDU sub-header) of the uplink modulation mode or an agreed value is used to notify the base station of an abnormal channel quality indication using the agreed uplink modulation mode. The agreed mode is BPSK or QPSK up...

Embodiment 3

[0049] Figure 4 It is a flowchart of a data reporting method according to Embodiment 3 of the present invention. The method includes:

[0050] Step S401: User terminal equipment (UE) periodically sends SRI to eNB, for example, sends SRI to eNB at a period of one millisecond;

[0051] Step S402: After the eNB receives the first SRI of the UE, it establishes a time window of a predetermined time size, for example, a time window of 10 ms;

[0052] Step S403: The eNB judges whether it is an SRI sent periodically by whether it receives a predetermined number of SRIs within the time window. For example, it is set to 5 SRIs (this parameter can be dynamically configured). When an SRI is determined to be an SRI sent periodically, if otherwise enter step S404, if yes then enter step S405;

[0053] Step S404: eNB sends UL Grant to UE, and sets uplink modulation mode in UL Grant according to the SINR detected by itself;

[0054] Step S405: eNB sends UL Grant to UE, and sets uplink mo...

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Abstract

The invention provides a data reporting method, user equipment and a base station. The data reporting method comprises: sending an arranged signal for indicating a base station to use an arranged uplink modulation mode; receiving an uplink authorized mark sent by the base station according to the arranged signal, wherein the uplink modulation mode appointed in the uplink authorized mark is an arranged uplink modulation mode; and reporting data to the base station in the arranged uplink modulation mode. The embodiment of the invention sends the arranged signal to notify the base station to usethe uplink signalling modulation mode before the user terminal equipment reports data to the base station, the user equipment and the base station use the same uplink modulation mode to improve the demodulation success rate of uplink data and causes the user business to successively develop.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data reporting method, user equipment and a base station. Background technique [0002] 3GPP LTE (Long Term Evolution, long-term evolution) is a high data rate, low delay and full packet-based mobile communication system. In terms of data rate and spectrum utilization, 3GPP LTE achieves a downlink peak rate of 100Mb / s and an uplink peak rate of 50Mb / s. In order to ensure the technical advantages of the 3GPP LTE system in terms of spectrum utilization, it is mainly realized through multi-antenna technology, automatic modulation control (AMC, Automatic Modulation Control) and frequency selective scheduling based on channel quality. [0003] Adaptive modulation and coding technology, that is, AMC, can greatly improve the transmission efficiency of the system. It adapts the modulation mode and coding rate (MCS) according to the actual situation of the current channel, such as the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/18H04W72/12H04W88/02H04W88/08
Inventor 王学城潘诗林
Owner HUAWEI TECH CO LTD