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Configuration method for control channel, and receiving method, device and system

A technology for controlling channels and configuration methods, which is applied in the field of communication and can solve problems such as too many terminal busy checks

Inactive Publication Date: 2015-12-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0031] In view of the problem in the related art that the introduction of dual links on the basis of CA leads to more busy detection times of the terminal, the present invention provides a control channel configuration method, receiving method, device and system to at least solve the above problems

Method used

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  • Configuration method for control channel, and receiving method, device and system
  • Configuration method for control channel, and receiving method, device and system
  • Configuration method for control channel, and receiving method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0125] Base station side:

[0126] The serving cell in the SCG should independently allocate the PRACHPreamble sequence and / or PRACH time domain and / or frequency domain resources to the dual-link terminal, so that the SCG can identify the corresponding dual-link terminal during initial access, and the corresponding SPcell When sending the common control information in the common search space, the common control information is sent by using the common control information type or DCIFormat predetermined or configured by high-layer signaling.

[0127] Terminal side:

[0128] The terminal judges whether to detect the common control information by using the common control information type or DCIFormat predefined or configured by high-level signaling according to the received PRACHPreamble sequence and / or PRACH time domain and / or frequency domain resources.

[0129] or,

[0130] The terminal judges whether to detect the common control information by using the common control inform...

Embodiment 2

[0132] Base station side:

[0133] The serving cell in the SCG should independently allocate a group of PRACHPreamble sequences and / or PRACH time domain and / or frequency domain resources, so that when the serving cell in the SCG receives the PRACH in the group, it uses predetermined or high-level information The configured common control information type or DCIFormat is used to send the common control information.

[0134] Terminal side:

[0135] The terminal judges whether to detect the common control information by using the common control information type or DCIFormat predefined or configured by high-level signaling according to the received PRACHPreamble sequence and / or PRACH time domain and / or frequency domain resources.

[0136] or,

[0137] The terminal judges whether to detect the common control information by using the common control information type or DCIFormat predefined or configured by high-layer signaling according to whether it is in the dual link state.

Embodiment 3

[0139] Base station side:

[0140] According to the methods of Embodiment 1 and Embodiment 2, the base station does not support the detection of eIMTA-RNTI in the common search space of the SeNB for the terminal, and the public control information of the common search space related to the SeNB and the terminal only uses DCIFormat1A Transmission, only if the SeNB supports dynamic TDD subframe configuration, then the dual-link terminal terminal only ensures that the change of the dynamic subframe will not affect the transmission and feedback of the terminal through scheduling (similar to the TDD dynamic configuration SeNB scheduling R8~R11 Terminal), this method can ensure that the terminal can reduce the maximum number of blind detections by 6 times in the dual-link scenario, and ensure that the terminal implementation complexity is low.

[0141] Terminal side:

[0142] For dual-link terminals, only DCIFormat1A is used to detect common control information in the public search ...

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Abstract

The invention discloses a configuration method for a control channel, and a receiving method, device and system. The method comprises the steps that a base station carries out the grouping of serving cells for terminal detection, and enables the serving cells to be divided into at least two CGs (cell groups), wherein one cell group is an MCG (main cell group), and one or more other cell groups are SCGx (x is integer greater than zero); and the base station predefines or configures a control channel information type and / or a downlink public control information format of the control channel in a terminal detection public searching space, wherein the control channel information type and / or the downlink public control information format are / is needed by downlink public control information. The method solves a problem that the introduction of double links causes the larger number of times of blind detection of the terminal on the basis of CA in related technologies, reduces the energy consumption of the terminal, and also can guarantee that the maximum number of detection times of the control channel of the terminal does not exceed the predefined number of detection times of the terminal under the condition of not affecting the average throughput capacity and real-time business dispatching of the terminal.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a control channel configuration method, receiving method, device and system. Background technique [0002] In the Long Term Evolution (LTE) system, the following three downlink physical control channels are defined: Physical Downlink Control Format Indicator Channel (PCFICH, PhysicalControlFormatIndicatorChannel), Physical Hybrid Automatic Repeat Request Indicator Channel (PHICH, PhysicalHybridAutomaticRetransmissionRequestIndicatorChannel), Physical Downlink Control Channel (PDCCH , PhysicalDownlinkControlChannel). [0003] The PDCCH is used to carry downlink common control information (DCI, Downlink Control Information), including: uplink and downlink scheduling information, and uplink power control information. The format of DCI (DCIformat) is divided into the following types: DCIformat0, DCIformat1, DCIformat1A, DCIformat1B, DCIformat1C, DCIformat1D, DCIformat2, DCIformat2...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W74/08
CPCH04W72/04Y02D30/70
Inventor 郭森宝左志松张峻峰
Owner ZTE CORP
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