Resource releasing and allocating method, device and network apparatus

Abstract

The invention discloses a resource releasing method. An evolved NodeB (eNB) sends a downlink SPS (Semi-Persistent Scheduling) resource releasing command to user equipment (UE) through physical downlink control channel (PDCCH) at a moment corresponding to the SPS, and temporarily reserves an uplink feedback channel corresponding to the corresponding downlink SPS resource; if the eNB receives feedback of the downlink SPS resource releasing command of the PDCCH from the UE but does not receive feedback of an SPS data channel from the UE, the corresponding downlink SPS resource is successfully released. Meanwhile, the invention further discloses a resource releasing device capable of improving the reliability of SPS release. The invention further discloses a resource allocating method and a network apparatus, which can allocate the resource that the UE releases due to uplink loss of synchronism to the UE so as to perform successive normal data transmission. The invention further discloses a resource reserving method and a resource reserving device, which can ensure timely sending of the data of high-priority services.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, device and network equipment for releasing and allocating resources. Background technique [0002] In the Long Term Evolution (LTE, Long Term Evolution) system, the existing resource scheduling methods include the following: Dynamic Scheduling (DS, Dynamic Scheduling), which means that the evolved base station (eNB, evolved NodeB) has no fixed restrictions on resource scheduling. When data arrives, the eNB allocates resources and performs data transmission; Semi-Persistent Scheduling (SPS, Semi-Persistent Scheduling) means that the scheduling of resources is periodic, such as VoIP services, which are scheduled every 20ms, so the eNB can pre-schedule Resources are allocated, and the allocated resources are used periodically. [0003] In the uplink and downlink in the LTE system, the activation and release of the SPS can be indicated by using a Physical Do...

AI Technical Summary

Problems solved by technology

Once the eNB falsely detects ACK (such as discontinuous transmission (DTX, Discontinuous Transmission), the probability of misdetection as ACK is 10 -2 ~10 -1 ), for the downlink, it will cause the UE to continue to monitor SPS resources, try to decode SPS data, and reply with an error response (NAK, Negative Acknowledgment); for the uplink, it will cause the UE to continue to use SPS resources and try to send SPS data

In short, the existing technology will cause the UE to consume power and cause interference to other users in the cell, and cannot meet the high reliability requirements for the SPS release command

In prior art 2, since the feedback channel is not used, in order to ensure the successful release of SPS resources, it is necessary to send multiple PDCCH commands for SPS resource release, which may not be necessary, thereby wasting control signaling overhead, and SPS resources are also cannot be released in time

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