Transmission method and system for sending multiple uplink scheduling requests based on TDM

Abstract

The present invention relates to a transmission method and system for sending multiple uplink scheduling requests based on TDM, including: step S1: when user equipment receives RRC signaling from a first connection point device; step S2: user equipment generates multiple uplink scheduling requests , and send multiple uplink scheduling requests to the first connection point device sequentially according to the TDM transmission mode; Step S3: the first connection point device retains an uplink scheduling request corresponding to the first connection point device, and then forwards other uplink scheduling requests To the corresponding second connection point devices; Step S4: After receiving the corresponding uplink scheduling request, the second connection point devices perform scheduling coordination respectively, and the connection point devices send a scheduling authorization instruction to the user equipment; Step S5: The user equipment follows the scheduling authorization The instruction sends uplink data to the corresponding connection point device. Compared with the prior art, the present invention has the advantages of saving control channel resources, improving data throughput and the like.

Description

technical field [0001] The present invention relates to wireless communication, in particular to a transmission method and system for transmitting multiple uplink scheduling requests based on TDM in a wireless communication system. Background technique [0002] In LTE (Long Term Evolution) and LTE evolved systems, the user (UE) needs three interactive steps to perform uplink data transmission: 1) The user sends an uplink scheduling request (Scheduling Request, SR) to the base station (eNB), the signaling It is used to request uplink resources to initiate uplink data transmission; 2) The eNB agrees to the UE to perform uplink data transmission through scheduling coordination, and sends a scheduling grant instruction to the UE. This signaling is mainly used to indicate uplink data Time-frequency resources, modulation and coding schemes, power control commands, reference signals, etc. required for transmission; 3) UE data starts uplink transmission to the eNB. [0003] Since t...

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Problems solved by technology

[0006] However, in this solution, both MeNB and SeNB must reserve PUCCH resources for these UEs with dual connectivity functions, resulting in serious consumption of PUCCH resources. This shortcoming is especially obvious for eNBs that aim to improve data throughput.

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