Method and system for increasing quantity of physical layer control channel resource

A physical layer control and channel resource technology, applied in the field of expanding the number of physical layer control channel resources, can solve the problems of PDCCH adapting to channel conditions and affecting scheduling flexibility, etc., to achieve changes in effective channels, adaptation to channel changes, and allocation methods flexible effects

Active Publication Date: 2012-03-28
北京万海云科技有限公司
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Problems solved by technology

For example, if the new DCI is used to reduce the bearer bits, the information bits may need to be redefined for specific services, which will affect the operation of the service. At the same time, the terminal also needs to perform blind detection on the new DCI size; the introduction of empty The sub-technology may design a new demodulation reference signal and demodulation method for this new demodulation method, and solve the RRE (remote radio equipment) position occupied by PDCCH when a group of users occupy the same time/frequency reso

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  • Method and system for increasing quantity of physical layer control channel resource
  • Method and system for increasing quantity of physical layer control channel resource
  • Method and system for increasing quantity of physical layer control channel resource

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[0084] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0085] The method for expanding the number of physical layer control channel resources of the present invention is as follows Figure 4 Shown. The method includes the following steps.

[0086] Step S100, the virtual terminal vUE is assigned a radio network temporary identifier RNTI, the assigned RNTI is an extended wireless network temporary identifier Z-RNTI, and the terminal eUE that supports extension has the Z-RNTI.

[0087] In a preferred specific embodiment, Z-RNTI is a reserved value in RNTI or the base station informs the eUE of the preset Z-RNTI value through signaling.

[0088] For example, the Z-RNTI allocation method adopts fixed allocation, and Table 2 is changed. The changed table is shown in Table 4. The value of Z-RNTI can also be a re...

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Abstract

The invention discloses a method and a system for increasing the quantity of a physical layer control channel resource. The method comprises the following steps: 1) a Z-RNTI distributes a vUE to a RNTI, an eUE is provided with the Z-RNTI; 2) a base station dispatches the idle resource of a subframe to an expansion control area, and maps a PDCCH (Physical Downlink Control Channel) of the eUE to the expansion control area; 3) the base station maps the PDCCHs of a tUE and a vUE to the control area of the subframe; 4) the base station uses the Z-RNTI to transmit the PDCCH data of the vUE including resource allocation information, and uses a C-RNTI to transmit the PDCCH of the eUE; and 5) the eUE decodes the PDCCH data of the vUE according to the Z-RNTI, and detects the PDCCH in a search space of the expansion control area. The invention can increase the resource distributed to the physical layer control channel, and reduces the probability of resource conflicts.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and a system for expanding the quantity of physical layer control channel resources. Background technique [0002] The LTE (Long Term Evolution) project is an evolution of 3G, which improves and enhances the air access technology of 3G. Using OFDM (Orthogonal Frequency Division Multiplexing) and MIMO (Multiple-Input Multiple-Out-put) as the only standards for its wireless network evolution. Under the 20MHz spectrum bandwidth, it can provide the peak rate of downlink 100Mbit / s and uplink 50Mbit / s. It improves the performance of cell edge users, increases cell capacity, and reduces system delay. The LTE system described in the present invention includes its subsequent evolution version such as LTE-A. [0003] The OFDM used by LTE in the downlink direction is an efficient data transmission method. Its basic idea is to divide a given channel into multiple orthogonal sub-channels...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W72/12
Inventor 仲川刘红梅卫瑞平商志平常永宏
Owner 北京万海云科技有限公司
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