Base station/terminal and PDCCH scrambling/descrambling method and device thereof

A technology of base station system and aggregation degree, which is applied in wireless communication, broadcast service distribution, electrical components, etc., can solve problems such as low efficiency, and achieve the effect of reducing the complexity of CCE search

Inactive Publication Date: 2016-04-06
ZTE CORP
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Obviously, applying this method, the system needs to notify the termina

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  • Base station/terminal and PDCCH scrambling/descrambling method and device thereof
  • Base station/terminal and PDCCH scrambling/descrambling method and device thereof

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[0040] In order to explain the embodiments and technical solutions of the present invention more clearly, the technical solutions of the present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Examples. The embodiments of the basic invention, and all other embodiments obtained by those of ordinary skill in the art without creative labor, fall within the protection scope of the invention.

[0041] The embodiment of the present invention is as follows: the base station uses the preset CCE aggregation degree in the common search space to allocate CCE resources to the cluster data service and the LTE data service respectively, and uses the preset totally different CCE aggregation degree in the dedicated search space. CCE resources are allocated for trunking data services and LTE data services respectively. Therefore...

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Abstract

The invention discloses a PDCCH scrambling method. When a base station system supports a cluster data service, the PDCCH scrambling method comprises the steps of: dispatching the cluster data service or an LTE data service according to a preset dispatching graph; scrambling a PDCCH by utilizing a T-RNTI for the cluster data service on cluster subframes, allocating CCE resources by using a first preset CCE aggregation degree in a common search space, and allocating CCE resources by using a second preset CCE aggregation degree in a dedicated search space; and scrambling the PDCCH by utilizing a C-RNTI for the LTE data service on LTE subframes, allocating CCE resources by using a third preset CCE aggregation degree in the common search space, and allocating CCE resources by using a fourth preset CCE aggregation degree in the dedicated search space, wherein the second preset CCE aggregation degree and the fourth preset CCE aggregation degree are completely different. The invention discloses a PDCCH descrambling method accordingly, and discloses a base station, a terminal, a PDCCH scrambling device and a PDCCH descrambling device.

Description

technical field [0001] The present invention relates to the field of trunking communication, in particular to a base station / terminal and a method and device for scrambling / descrambling a physical downlink control channel (PhysicalDownlinkControlChannel, PDCCH) thereof. Background technique [0002] In the Long Term Evolution (LTE) system, different radio network temporary identifiers (RadioNetworkTemporaryIdentifier, RNTI) are used for scrambling / descrambling for different services. -RNTI), the random access service will use the Random Access Radio Network Temporary Identifier (RandomAccessRadioNetworkTemporaryIdentifier, RA-RNTI), in addition, the LTE protocol also stipulates the cell radio network temporary identifier (CellRadioNetworkTemporaryIdentifier, C-RNTI), search Call radio network temporary identifier (PagingRNTI, P-RNTI) and so on. When the trunking data service is networked in the public network environment, because the trunking data service and the common LTE...

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Application Information

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IPC IPC(8): H04W4/06H04W72/04H04W72/12
Inventor 刘卓余西
Owner ZTE CORP
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