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An uplink resource acquisition method, scheduling method, device and system

A technology for resource and scheduling requests, applied in transmission systems, digital transmission systems, power management, etc., can solve the problem of wasting UE energy consumption, and achieve the effect of avoiding waste of energy consumption

Active Publication Date: 2016-03-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the UE is configured with DRX mode on multiple component carriers, after the UE that needs to send uplink data sends a resource scheduling request SR to the evolved base station (EvolvedNodeB, eNB), according to the processing method in the LTE system, the UE will All component carriers are in the Active state to monitor the PDCCH scheduling, which will waste a lot of energy consumption of the UE

Method used

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  • An uplink resource acquisition method, scheduling method, device and system
  • An uplink resource acquisition method, scheduling method, device and system
  • An uplink resource acquisition method, scheduling method, device and system

Examples

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Embodiment 1

[0032] This embodiment provides a method for acquiring uplink resources, such as figure 1 As shown, the method includes:

[0033] Step 110, the UE sends a scheduling request SR to the eNB through a dedicated scheduling request resource.

[0034] There are multiple component carriers in the LTE-A system, and each component carrier has an independent PUCCH. Therefore, dedicated SR resources can be configured for UEs on each component carrier. Generally, LTE-A UEs can only operate on one Dedicated SR resources are configured on component carriers. When the UE needs to send uplink data, it will trigger (trigger) a regular BSR (BufferStatusReport, buffer status report). If there is no uplink scheduling resource available at this time, the UE may send a scheduling request SR to the eNB on a configured dedicated SR (Scheduling Request, scheduling request) resource.

[0035] In step 120, the UE monitors the physical downlink control channel on the configured component carrier, and ...

Embodiment 2

[0045] This embodiment also provides a method for scheduling uplink resources. Such as figure 2 As shown, the method includes:

[0046] Step 210, the eNB receives the scheduling request SR sent by the UE through the dedicated scheduling request resource;

[0047] Step 220, the eNB schedules uplink scheduling resources for the UE on the set component carrier.

[0048] Wherein, the set component carrier includes but is not limited to one or more of the following component carriers: the component carrier receiving the scheduling request SR, the primary component carrier, the component carrier not configured with DRX, the UE or eNB pre-configured component carrier, etc.

[0049] Specifically, the eNB may schedule uplink scheduling resources for the UE on the component carrier receiving the scheduling request SR, the primary component carrier, the component carrier not configured with DRX, or the pre-configured component carrier. In this way, the UE can receive uplink scheduli...

Embodiment 3

[0052] In this embodiment, taking the primary component carrier as the set component carrier as an example, the scheduling and acquisition process of the uplink scheduling resource is described. The primary component carrier here can be regarded as a primary carrier among multiple component carriers. Such as image 3 As shown, the method includes:

[0053] In step 310, the UE sends a scheduling request SR to the eNB through a dedicated scheduling request resource.

[0054] Step 320, after receiving the scheduling request SR sent by the UE, the eNB schedules a UL Grant for the UE on the primary component carrier, and the UL Grant is used for the UE to send a buffer status report BSR to the eNB.

[0055] In step 330, the UE monitors the PDCCH on the primary component carrier and receives the UL Grant.

[0056] At this time, the UE is only active on the primary component carrier, and monitors the PDCCH to receive the UL Grant.

[0057] Step 340: After receiving the UL Grant o...

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Abstract

The present invention provides an uplink resource acquisition method, scheduling method, device and system, wherein the uplink resource acquisition method includes: sending a scheduling request to a base station through a dedicated scheduling request resource; monitoring a physical downlink control channel on a set component carrier , to receive uplink scheduling resources, where the set component carrier may include the component carrier that sends the scheduling request SR, or the main component carrier, or the component carrier that is not configured with DRX, or one or more of the pre-configured component carriers item. The embodiment of the present invention can avoid the waste of energy consumption of the UE.

Description

technical field [0001] The present invention relates to long-term evolution technology, in particular to an uplink resource acquisition method, scheduling method, device and system. Background technique [0002] In the Long Term Evolution (LTE) system, the maximum bandwidth is 20M. If the connected user equipment (User Equipment, UE) is configured with DRX (Discontinuous Reception, discontinuous reception) mode, the UE needs to send a scheduling request (schedule request, SR) Then keep the active (Active) state, so as to be able to monitor the PDCCH until a valid uplink scheduling resource ULGrant (uplink grant) is obtained. [0003] The LTE-A (Advanced LTE, Advanced Long Term Evolution) system is an extension and enhancement of the LTE system. In order to expand the maximum bandwidth to 100M, the LTE-A system is studying a carrier aggregation (CA, CarrierAggregation) technology, which aggregates multiple carriers in different frequency bands to form a maximum bandwidth of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12H04W88/02H04W88/08
CPCH04W72/1268H04W52/0209H04W72/0453H04W72/21H04L5/0044H04L5/0091H04W52/0235H04W76/28Y02D30/70H04W72/20H04W72/23
Inventor 高闻曾清海
Owner HUAWEI TECH CO LTD
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