Control channel transmission method and device and base station equipment

A technology of a control channel and a transmission method, applied in the field of devices, base station equipment, and control channel transmission methods, can solve problems such as reduction of transmission data information resources, ePDCCH resource conflict, occupation, etc., and achieve the effect of saving data transmission resources and avoiding resource conflicts.

Active Publication Date: 2014-01-01
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In the prior art, the ePDCCH message is transmitted using 2 slots of a subframe. However, when the MTC service uses the middle 6 physical resource blocks (PRB, Physical Resource Block) for data transmission, if the configuration of PBCH in LTE is followed , in the second slot of the 0th subframe of each radio frame, the PBCH is transmitted on the first 4 OFDM symbols. If this subframe i

Method used

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  • Control channel transmission method and device and base station equipment
  • Control channel transmission method and device and base station equipment
  • Control channel transmission method and device and base station equipment

Examples

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Embodiment 1

[0026] Embodiment 1 provides a control channel transmission method. Specifically, in the LTE system bandwidth, a part of the bandwidth is determined for use by small-bandwidth services. At the same time, the LTE system can also use this segment of bandwidth. In this way, the small-bandwidth services will The LTE system bandwidth is shared with non-small bandwidth services in the LTE system, and at the same time, the physical resources occupied by its control channel are also shared.

[0027] The bandwidth supported by the LTE system includes 1.4MHz (the number of PBRs included is 6), 3.0MHz (the number of PBRs included is 15), 5MHz (the number of PBRs included is 25), 10MHz (the number of PBRs included is 50), 15MHz ( The number of PBRs included is 75), and 20MHz (the number of PBRs included is 100). The uplink and downlink bandwidths of the LTE system can be different. The size of the downlink bandwidth is broadcast through MIB (main broadcast information), and the size of the...

Embodiment 2

[0037] Because in the embodiment of the present invention, small-bandwidth services and non-small-bandwidth services share physical resources, therefore, the physical resources used to transmit control channels are also shared. In this way, the control channels of small-bandwidth services and non-small-bandwidth services are simultaneously When the physical resources are mapped, there may be a conflict between the physical resources occupied by the two.

[0038] Preferably, in order to solve the above problems, the control channel transmission method provided by the present invention may further include the following steps before transmitting the small-bandwidth service control channel on the first physical resource:

[0039] Step 1. On the first M OFDM symbols of the downlink subframe contained in the bandwidth occupied by the small bandwidth service, determine the second physical channel used to transmit the terminal control channel of the non-small bandwidth service, that is...

Embodiment 3

[0057] Such as Figure 4 As shown, it is a schematic structural diagram of a control channel transmission device provided by an embodiment of the present invention, including:

[0058] The first determination unit 401 is configured to determine, on any downlink subframe included in the bandwidth occupied by the small bandwidth service, the first physical resource used to transmit the control channel of the small bandwidth service, wherein the control channel of the small bandwidth service is related to the The control channel of the non-small bandwidth service in the LTE system shares physical resources, and the first physical resource is located on the first N orthogonal frequency division multiplexing OFDM symbols of the downlink subframe, and N is less than or equal to 4;

[0059] The transmission unit 402 is configured to transmit the small-bandwidth service control channel on the first physical resource.

[0060] During specific implementation, the control channel transm...

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Abstract

Disclosed are a control channel transmitting method and apparatus, and a base station device. When a control channel of a non-small bandwidth service is transmitted, a control channel of a small bandwidth service is transmitted, and control channels of the two services multiplex control channel resources of a non-small bandwidth service, so as to achieve objectives of avoiding conflicts between resources occupied by the control channel of a small bandwidth service and resources occupied by a common control channel of a non-small bandwidth service, and reducing occupation of data channel resources. The method comprises: determining, on a random downlink sub-frame comprised in a bandwidth occupied by a small bandwidth service, a first physical resource for transmitting a control channel of a small bandwidth service (S201), the control channel of a small bandwidth service and a control channel of a non-small bandwidth service sharing physical resources, the first physical resource being located on the first N OFDM symbols of the downlink sub-frame, and N is smaller than or equal to 4; and transmitting the control channel of a small bandwidth service on the first physical resource (S202).

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a control channel transmission method, device and base station equipment. Background technique [0002] Machine Type Communication (MTC, Machine Type Communication) services mainly include some Internet of Things services, which usually have the characteristics of less information bits, lower transmission rate, and less bandwidth required. Therefore, this type of service is also called small Bandwidth services, correspondingly, services other than small bandwidth services may be called non-small bandwidth services. When the long-term evolution (LTE, Long Time Evolution) protocol is used to support small-bandwidth services, certain functional simplifications can be performed to reduce complexity and reduce terminal equipment (UE, User Equipment) overhead. For example, considering the low transmission rate of small-bandwidth services, the requirements for mu...

Claims

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Application Information

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IPC IPC(8): H04L27/26H04L5/00H04B7/06
CPCH04L5/06H04L5/0053
Inventor 胡丽洁史志华王锐郑毅胡臻平
Owner CHINA MOBILE COMM GRP CO LTD
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