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Resource location notification method and system for control signaling

A technology for resource location and control signaling, applied in the field of communication systems, can solve the problems of large changes in signaling overhead, poor backward compatibility of protocols, and inability to allocate and allocate resource allocation signaling.

Inactive Publication Date: 2018-04-24
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The problem existing in the prior art is that two channels cannot transmit data in the same RB. When UE2 transmits data, its resource allocation signaling can no longer be allocated in units of RBs, but can only be allocated in units of time slots.
If N resources (N=1, 2, 3, ..., M) in M ​​RBs are allocated If always possible, then will be much greater than The signaling overhead changes a lot, and the change of the minimum resource unit of the physical layer will cause the backward compatibility of the existing protocol to be very poor.

Method used

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  • Resource location notification method and system for control signaling
  • Resource location notification method and system for control signaling
  • Resource location notification method and system for control signaling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In this embodiment, the base station will transmit the dedicated control signaling of multiple UEs in one subframe, and the control channel area of ​​the new version will transmit the dedicated control signaling in the first time slot (Slot) defined in the protocol. In the example, 4 UEs are scheduled, such as Figure 4 As shown, in the first Slot of the 4th RB, the first Slot of the 6th and 7th RB, and the first Slot of the 11th RB, respectively, the resource location information is set P={RB4, RB6, RB7, RB11}.

[0045] The base station can send the resource location information in the common search space of the control channel area of ​​the new version, and the resource location information is limited to the time domain location in the control signaling, such as when transmitting on the first Slot or the first N symbols , it may not be necessary to notify the UE of time-domain location information, and the UE only needs to notify the frequency-domain location informa...

Embodiment 2

[0047] In this embodiment, the base station will transmit the control signaling of multiple UEs in one subframe, and the control channel region of the new version will transmit the control signaling in the first Slot and / or the second Slot defined in the protocol , 4 UEs are scheduled, such as Figure 5 As shown, in the first Slot of the 4th RB, the second Slot of the 6th and 7th RB, the first and second Slot of the 10th RB, and the first slot of the 11th RB The first and second Slot transmission, the resource location information is set P={Slot1 of RB4, Slot2 of RB6, Slot2 of RB7}, according to the principle of selecting subset P from Q, in this embodiment, set P does not contain The two slots are both RB10 and RB11 occupied by control signaling, because there will be no multiplexing of the PDCCH area and the PDSCH area in RB10 and RB11.

[0048] The base station can send the resource location information in the common search space of the control channel area of ​​the new ve...

Embodiment 3

[0050] This embodiment describes how to transmit resource location information in the public search area of ​​the new version control channel area, specifically: as Image 6 As shown, the common search area of ​​the new version control channel area can be a pre-specified one RB or multiple RBs, or a pre-specified partial slot of one RB or multiple RBs, or other resource locations, such as one RB or multiple RBs Partial symbols of RB, or define multiple discrete resource units (RE, Resource Element).

[0051] The public search area in the control channel area of ​​the new version can also be configured by the base station through control signaling. The control signaling can be a signaling sent by the base station to the UE through a high layer, or it can be a common search area of ​​the base station in the control channel area of ​​the old version. The signaling sent by the search area to the UE.

[0052] In order to realize the above method, the present invention also provide...

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Abstract

The invention discloses a resource position notification method for control signaling, comprising: a base station notifies UE of resource position information of control signaling in a subframe through signaling; the invention also provides a resource position notification system for control signaling. According to the technical solution of the present invention, the multiplexing of the PDSCH area and the ePDCCH area in the same RB is supported, and the two channels transmit data in the same RB.

Description

technical field [0001] The present invention relates to a communication system, in particular to a resource position notification method and system for control signaling. Background technique [0002] In the long term evolution (LTE, Long term evolution) system and the enhanced LTE (LTE-Adavance) system, the downlink physical layer control signaling includes the downlink grant (DL Grant) related to the downlink transmission that the user equipment (UE, User Equipment) needs to know. ) information and uplink grant (UL Grant) information related to uplink transmission that the UE needs to know, and downlink physical layer control signaling is transmitted on a Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel). [0003] In the version (R, Release) 8 / 9 of the LTE system and the R10 of the LTE-Adavance system, the PDCCH for transmitting downlink physical layer control signaling is generally configured in the first N orthogonal frequency division multiple...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W68/00H04W72/04
Inventor 陈艺戬郭森宝戴博孙云锋
Owner ZTE CORP