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A scheduling information receiving method and device

A technology for dispatching information and receiving methods, applied in wireless communication, machine-to-machine/machine-type communication services, using return channels for error prevention/detection, etc., can solve problems such as inability to reuse and lack of flexibility, and achieve improvement Scheduling efficiency, reducing resource waste, and reducing scheduling overhead

Pending Publication Date: 2019-06-04
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing DCI format3 / 3A format, the mapping relationship between the UE and the TPC command (power control command) domain is configured by high-level signaling, which lacks flexibility and cannot adapt to the need for the UE to monitor each uplink transmission or downlink control channel. Both can flexibly perform ACK feedback application scenarios
Therefore, this method cannot be reused in the MTC system

Method used

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  • A scheduling information receiving method and device
  • A scheduling information receiving method and device
  • A scheduling information receiving method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0154] UE1, UE2, and UE3 initiate uplink transmission to the base station, and respectively monitor the PDCCH search space configured for them by the base station.

[0155] The base station sends two DCIs to UE1, one single DCI transmits the ACK feedback message of UE1, and one group DCI transmits the NACK feedback message of the time-frequency resource position used by UE1 for UL transmission.

[0156] UE1 receives the above two DCIs during the monitoring process. According to the priorities configured by the upper layer, the single DCI has a higher priority than the group DCI, and considers the UL transmission to be successful.

[0157] The base station sends two DCIs to UE2, one single DCI transmits the UL grant scheduling message of UE2, and one group DCI transmits the NACK feedback message of the time-frequency resource position used by UE2 for UL transmission.

[0158] UE2 receives the above two DCIs during the monitoring process, and according to the predefined prioriti...

Embodiment 2

[0162] In the MTC ETS scenario, base station 1 sends single DCI to UE1 to carry the A / N feedback message, and multiplexes DCI format 6-0A / B.

[0163]When UE1 is in Coverage Enhancement mode (Coverage Enhancement mode, CE mode) A, the resource allocation field in the existing DCIformat 6-0A has a minimum of 11 types and a maximum of 176 types of unused ones according to the configured maximum PUSCH bandwidth and system bandwidth value. If there are M unused values ​​in the resource allocation field in UE1's current DCI format 6-0A, perform at least one of the following actions: define any 8 values ​​among them as 8 UL HARQ processes of UE1 Early termination of the transmission of the process; define any one of the values ​​as the early termination of the transmission of all UL HARQ processes of UE1; define any one of the values ​​as the early termination of the PDCCH channel monitoring of UE1; define any 8 of them as The values ​​are respectively defined as early termination o...

Embodiment 3

[0175] The UE that supports using the group DCI to carry the feedback message as the ETS should obtain the configuration information of the group DCI from the base station in advance. The configuration information of the Group DCI can be obtained through a high-level message, which includes at least one or more group-RNTIs, and may additionally include the sequence number corresponding to the UE in each group-RNTI.

[0176] see figure 2 , the UE performs continuous or intermittent data transmission on the PUSCH time-frequency resources scheduled by the base station, and keeps monitoring the PDCCH channel configured as the search space, and performs blind detection on the possible DCI signals that are monitored, and based on The configured group-RNTI performs CRC (cyclic redundancy check) decoding attempt. When more than one group-RNTI is configured, the group-RNTI is used to try one by one. For FD-FDD (full duplex frequency division duplex) UE, if the configured PUSCH transm...

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Abstract

The invention discloses a scheduling information receiving method. The method comprises the following steps: acquiring downlink control information (DCI); And determining the scheduling information corresponding to the PUSCH in the DCI according to the mapping relation between the transmission configuration resources used by the physical uplink shared channel PUSCH and the scheduling information in the DCI. Compared with the prior art, the method has the advantages that the cost is low;, According to the invention, the scheduling information in the DCI is determined according to the mapping relation between the transmission configuration resources used by the UE for transmitting the PUSCH and the scheduling information in the DCI; According to the embodiment of the invention, the base station can only send one DCI (Downlink Control Information), so that the scheduling of all UE (User Equipment) with a mapping relation between the PUSCH transmission configuration resources and the scheduling information in the DCI is realized, the scheduling overhead is reduced, the resource waste is reduced, and the scheduling efficiency of the communication system on the terminal is remarkably improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and more specifically, to a method and device for receiving scheduling information. Background technique [0002] In the current MTC (Machine Type Communication, machine mode communication) technology, the system supports DCI (Downlink Control Information, downlink control information) to perform ETS (Early Termination Signal, early termination signal) scheduling for UE (User Equitment, user equipment), That is, the base station transmits the ETS signal to the UE (User Equitment, user equipment) through the DCI on the PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) to schedule the PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) time-frequency resources used by the UE . If the uplink HARQ-ACK (Hybrid Automatic Retransmission Request Acknowledgment, Hybrid Automatic Retransmission Request Acknowledgment) feedback is used to...

Claims

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Application Information

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IPC IPC(8): H04W4/70H04W72/12H04L1/18
Inventor 周淼孙霏菲钱辰
Owner BEIJING SAMSUNG TELECOM R&D CENT
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