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Method and device for indicating control channel

A technology of control channel and control channel area, applied in the field of indication control channel, can solve the problems of not being able to guarantee the accuracy of the transmission of control information on new resources, and the transmission mode of control information on new resources is not determined.

Active Publication Date: 2011-11-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0026] The main purpose of the present invention is to provide a method and device for indicating a control channel to at least solve the problem that the transmission mode of the control information on the new resource has not been determined, and the transmission mode of the old version of the control information cannot be guaranteed. Problems with the accuracy of transmission of control information on new resources

Method used

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  • Method and device for indicating control channel
  • Method and device for indicating control channel
  • Method and device for indicating control channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Embodiment 1: In this embodiment, the indication information only includes the time domain position information of the control channel area

[0075] Example 1. The control channel area is on the first time slot:

[0076] method 1,

[0077] The control channel region is K consecutive OFDM symbols starting from the Sth OFDM symbol in the first time slot;

[0078] Application 1, S, K are given by the instruction information;

[0079] Application 2, S is predefined, and K is given by the instruction information;

[0080] Application 3, S is given by the instruction information, and K is predefined.

[0081] Method 2,

[0082] The control channel area is K consecutive OFDM symbols starting from the first OFDM symbol in the first time slot; K is given by the indication information.

[0083] Example 2. The control channel area is on the second time slot:

[0084] method 1,

[0085] The control channel region is K consecutive OFDM symbols starting from the Sth OFDM symbo...

Embodiment 2

[0093] Embodiment 2: In this embodiment, the indication information only includes the frequency domain position information of the control channel region

[0094] Example 1. The frequency domain area is the sum (union) of k2 such sub-areas. Any one of the sub-areas here is: m2*P2 resource blocks RB consecutively in ascending order from a predetermined starting position; where P2 is the predetermined , k2 starting positions are predefined, and m2 is given by the instruction information. Its schematic diagram is as follows figure 2 shown.

[0095] Example 2. The method mentioned in typ0 / 1 / 2 used in resource allocation (Resource allocation) in document 3GPP TS 36.213 is adopted.

Embodiment 3

[0096] Embodiment 3: In this embodiment, the indication information includes the frequency domain position information of the control channel area + the method of indicating the control channel area

[0097] The indication information provides an indication of the position in the frequency domain, and at the same time provides a method for indicating the position in the frequency domain.

[0098] For specific applications, the base station is configured with multiple methods for indicating the frequency domain position, and the UE needs to use the correct method to understand the indication of the frequency domain position given by the base station, so as to obtain information about the frequency domain position.

[0099] Furthermore, for the method of indicating the control channel area, use the combination of bit 0 and 1 to clearly tell the UE the method of indicating the control area currently used, such as Table 4:

[0100] Table four

[0101]

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Abstract

Disclosed are a method and device for indicating a control channel. The method for indicating a control channel includes: channelization processing is performed on indication information indicating the control channel, wherein the control channel is a newly added control channel area or a control channel on a resource which is newly carved out of resources reserved for PDSCH and is for transmitting control information; and the processed indication information is sent to UE. By applying the present invention, the current problem that the UE cannot detect the newly added downlink control channel can be solved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for indicating a control channel. Background technique [0002] There are two frame structures in the Long Term Evolution (LTE) system, and frame structure type 1 is applicable to Frequency Division Duplex (FDD) and Frequency Division Half Duplex. Each wireless frame is 10ms long and consists of 20 time slots (slot), each time slot is 0.5ms, numbered from 0 to 19. Wherein, a subframe (subframe) is composed of two consecutive time slots, for example, subframe i is composed of two consecutive time slots 2i and 2i+1. Whether it is half-duplex FDD or full-duplex FDD, the uplink and downlink are transmitted on different frequencies, but for half-duplex FDD, the UE cannot send and receive data at the same time; for full-duplex FDD, there is no such restriction, that is There may be 10 downlink and 10 uplink subframes in every 10ms interval. [0003] The frame st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/06H04L27/26
CPCH04L5/0042H04W72/00H04W72/042H04L5/0007H04L5/14H04L1/06H04L5/005H04L27/26H04L5/0053H04L5/0094H04W72/23
Inventor 李永戴博
Owner ZTE CORP
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