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Resource scheduling method and apparatus, and resource application method and apparatus of LTE non-licensed frequency bands

An unlicensed frequency band and resource scheduling technology, applied in electrical components, wireless communication, etc., can solve the problem of high failure rate of UL scheduling

Active Publication Date: 2017-03-01
CHINA MOBILE COMM GRP CO LTD
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Problems solved by technology

It is used to solve the problem of high UL scheduling failure rate existing in the prior art

Method used

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  • Resource scheduling method and apparatus, and resource application method and apparatus of LTE non-licensed frequency bands
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  • Resource scheduling method and apparatus, and resource application method and apparatus of LTE non-licensed frequency bands

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Embodiment Construction

[0125] In order to solve the problem of high failure rate of UL scheduling in the prior art, in the embodiment of the present invention, when eNB performs UL scheduling, it schedules a set of same time-frequency resources to multiple UEs at the same time; The mechanism enables only some of these UEs to compete for UL channel access opportunities at the same time.

[0126] The preferred embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0127] refer to figure 1 As shown, in the embodiment of the present invention, the specific flow of eNB resource scheduling in the unlicensed frequency band is as follows:

[0128] Step 100: The base station divides UEs scheduled to use the same time-frequency resource into multiple UE groups, wherein the interference value between each UE included in a UE group using the same time-frequency resource is lower than a set threshold.

[0129] Wherein, the so-called being...

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Abstract

The invention discloses a resource scheduling method and apparatus, and a resource application method and apparatus of LTE non-licensed frequency bands in order to solve the problem of high failure rate of UL scheduling in the prior art. The resource scheduling method includes: a base station divides scheduled UE employing same time frequency resources into a plurality of UE groups, then different extra interception times are respectively configured for the UE groups, each UE continues to perform channel interception in the corresponding duration corresponding to the extra interception time after obtaining a channel access chance, and channel access is performed if it is still determined that the channel is idle after interception. Therefore, the plurality of UE can simultaneously compete for the channel access chance through one-time scheduling, since different UE is in different interference environments, the condition that all the UE is interfered and blocked rarely appears, finally there is the UE which has the proper condition and successfully accesses the channel for uplink data transmission, the hit rate of UL scheduling success is effectively increased, and the success probability of UL transmission is substantially increased.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for resource scheduling and use of an LTE unlicensed frequency band. Background technique [0002] With the surge of data traffic in the mobile Internet, it has become a development trend to use a Long Term Evolution (Long Term Evolution, LTE) technology on an unlicensed frequency band. The unlicensed frequency band is open to all radio access technologies (Radio Access Technologies, RAT) and all operators, and different operators have the same right to deploy their own RAT systems (such as WIFI and unlicensed spectrum LTE). [0003] Since there is no interference coordination planning (for example, site planning) between sites deployed by different RAT operators, these sites are not allowed to transmit services at the same time, otherwise strong mutual interference will be caused. [0004] Similarly, even if they belong to the same RAT, systems deployed by...

Claims

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Application Information

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IPC IPC(8): H04W72/12H04W74/08
CPCH04W74/0816H04W72/542
Inventor 柯颋刘建军侯雪颖沈晓冬童辉王锐
Owner CHINA MOBILE COMM GRP CO LTD
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