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Discontinuous reception method and system

A receiving method and duration technology, applied in the field of communication, can solve problems such as performing or not performing channel quality indication, not receiving system information, not monitoring, etc., to achieve the effects of saving signaling overhead, increasing cell capacity, and reducing power consumption

Active Publication Date: 2011-07-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above scheme is still in the conception stage, and the specific solution has not yet been clarified and perfected. Whether it is necessary to support the activation / deactivation of the component carrier and the behavior of the UE on the deactivated component carrier are still under discussion. It is preliminarily considered that the UE is in the deactivated state The component carrier does not monitor PDCCH, does not receive PDSCH, does not receive system information, may perform mobility-related measurements, may or may not perform channel quality indicator (CQI)-related measurements, and may turn off baseband and / or radio frequency modules

Method used

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  • Discontinuous reception method and system

Examples

Experimental program
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Effect test

example 1

[0129] like Figure 5 As shown, a DRX method is described as follows:

[0130] Assuming that the UE is configured with three component carriers CC1, CC2, and CC3, it mainly describes the situation that each configured component carrier periodically starts a duration timer in an activated state.

[0131] Scenario 1: The component carriers CC1, CC2, and CC3 periodically start the DRX duration timer according to the configured DRX cycle and DRX start offset value, and are in active time.

[0132] Scenario 2: The component carrier CC1 receives the PDCCH indicating the downlink allocation or uplink grant of the component carrier, starts the DRX inactivity timer, and enters the DRX inactivity time when the DRX inactivity timer expires; although the component carriers CC2 and CC3 have no data reception Or the sending behavior is consistent with the active time of the component carrier CC1; that is, during the running period of the duration timer or the DRX inactivity timer, the comp...

example 2

[0137] like Figure 6 As shown, a DRX method is described as follows:

[0138] Assuming that the UE is configured with three component carriers CC1, CC2, and CC3, it is mainly described that the component carriers are deactivated according to preset conditions and the component carriers that periodically start the duration timer change dynamically.

[0139] Scenario 1: The component carrier CC1 is a component carrier that starts the duration timer periodically, starts the duration timer according to the configured short DRX cycle or long DRX cycle and the DRX start offset value, and is in active time; the component carriers CC2, CC3 is in a deactivated state.

[0140] Scenario 2: The component carrier CC1 receives the downlink allocation or uplink grant indicated by the PDCCH within a duration, and starts the DRX inactivity timer; the component carriers CC2 and CC3 continue to be in the deactivated state.

[0141] Scenario 3: eNB activates component carrier CC2 through PDCCH...

example 3

[0152] like Figure 7 As shown, a DRX method is described as follows:

[0153] Assuming that the UE is configured with 3 component carriers CC1, CC2, and CC3, it mainly explains the dynamic change of the component carrier according to the deactivation of the eNB signaling and the component carrier that periodically starts the duration timer. After activation, it is the periodic startup duration timer A component carrier can be active or inactive when activated.

[0154] Scenario 1: The component carrier CC1 starts the duration timer according to the configured short DRX cycle or long DRX cycle and the DRX start offset value, and is in the active time; the component carriers CC2 and CC3 are in the deactivated state.

[0155] Scenario 2: The eNB activates the component carrier CC2 by using the PDCCH signaling through the component carrier CC1.

[0156] Scenario 3: The component carrier CC1 receives the PDCCH indicating downlink allocation or uplink grant, and starts the DRX in...

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Abstract

The invention discloses a discontinuous reception method comprising the following steps that: at least one of a plurality of component carriers periodically starts a duration timer; or when user equipment (UE) periodically starts the duration timer, at least one of the plurality of component carriers is in activity time according to the duration timer. The invention also discloses a discontinuous reception system comprising a timer starting unit which is used for at least one of the plurality of component carriers to periodically start the duration timer; or when the UE periodically starts the duration timer, the timer starting unit is used for at least one of the plurality of component carriers to be in activity time according to the duration timer. The method and system disclosed by the invention perfect and concretely realize the same or common discontinuous reception (DRX) scheme of component carriers in an envisioning stage.

Description

technical field [0001] The present invention relates to the communication field, in particular to a multi-carrier discontinuous reception (DRX, Discontinuous Reception) method and system. Background technique [0002] The third-generation mobile communication Long Term Evolution (LTE, Long Term Evolution) system consists of an Evolved Universal Terrestrial Radio Access Network (E-UTRAN, Evolved Universal Terrestrial Radio AccessNetwork), a User Equipment (UE, User Equipment), and an evolved packet core network (EPC) composition. Among them, E-UTRAN is composed of enhanced base station (eNB), which can also be called eNB; UE can also be called terminal; EPC includes mobile management entity (MME), packet data network gateway (P-GW), and service gateway ( S-GW). [0003] In the LTE system, in order to save the battery / power consumption of the UE, the eNB may configure the DRX function for the UE through Radio Resource Control (RRC) to control the activity or behavior of the ...

Claims

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Application Information

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IPC IPC(8): H04W28/16H04W72/04
Inventor 张健戴谦张银成
Owner ZTE CORP
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