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Method and device for sending and receiving downlink control message

A technology for controlling messages and sending methods, applied in the field of communication, can solve problems such as access failure and lack of downlink public control channel resources, and achieve the effects of reducing access failure, realizing downlink control channel capacity, and improving utilization

Active Publication Date: 2015-05-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the PCH channel and the AGCH channel exist in the downlink CCCH channel at the same time, and only the RACH channel exists in the corresponding uplink channel; in some cases, for example, when a large number of M2M terminals send random access request messages through the RACH channel, the There is a problem of lack of downlink common control channel resources, which leads to access failure

Method used

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  • Method and device for sending and receiving downlink control message
  • Method and device for sending and receiving downlink control message
  • Method and device for sending and receiving downlink control message

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] like image 3As shown, the method for sending the downlink control message on the network side provided in the embodiment of the present invention includes:

[0044] 301. Map an idle time slot in a physical channel where an extended common control channel on a main carrier frequency of a cell is located to a downlink control channel.

[0045] 302. Send a downlink control message through the downlink control channel.

[0046] In this embodiment, after the above idle time slot is mapped to a downlink control channel, the downlink control channel can be used to transmit one or more of downlink common control messages such as paging messages, access response messages, and cell broadcast messages. Various messages.

[0047] The execution subject of the above steps may be a base station or other network equipment.

[0048] Corresponding to the method for sending the downlink control message on the network device side, the embodiment of the present invention also provides a...

Embodiment 2

[0077] In this embodiment, the method for sending and receiving a downlink control message in the embodiment of the present invention will be further described by taking the network device as a base station as an example. Certainly, the network device may also be a base station controller, or a combination of a base station and a base station controller (BSC).

[0078] like Figure 8 As shown, the method for sending and receiving a downlink control message provided in the embodiment of the present invention specifically includes the following steps:

[0079] 801. The base station maps idle time slots in the physical channel where the extended common control channel CCCH on the main carrier frequency C0 of the cell is located to a downlink control channel.

[0080] In this embodiment, the solution in the present invention is described by taking the mapping of the idle time slot as an access acknowledgment channel AGCH as an example. Of course, the downlink control channel may...

Embodiment 3

[0141] In this embodiment, the method for sending and receiving a downlink control message in the embodiment of the present invention is further introduced by still taking the network device as an example of a base station. The network device may also be a base station controller, or a combination of a base station and a base station controller.

[0142] like Figure 14 As shown, the method for sending and receiving a downlink control message provided in the embodiment of the present invention specifically includes the following steps:

[0143] 1401. The base station maps an idle time slot in the physical channel where the extended common control channel CCCH on the main carrier frequency C0 of the cell is located to a downlink control channel.

[0144] In this embodiment, the solution in the present invention is described by taking the mapping of the idle time slot as an access acknowledgment channel AGCH as an example. Of course, the downlink control channel may also be a ...

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PUM

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Abstract

Disclosed are a method and device for sending and receiving a downlink control message, relating to the technical field of communications, for expanding the capacity of the downlink control channel. The method for sending a downlink control message in the embodiments of the present invention includes: mapping an idle time slot in a physical channel to which an expanded common control channel on the main carrier of a cell belongs as a downlink control channel; and sending a downlink control message via the downlink control channel. The solution in the embodiments of the present invention is suitable for the expansion of the downlink control channel on the main carrier of the cell.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a method and device for sending and receiving downlink control messages. Background technique [0002] Logical channels can be divided into traffic channels and control channels. The control channels include a broadcast channel (Broadcast Channel, BCH), a common control channel (Common Control Channel, CCCH) and a dedicated control channel (Dedicated Control Channel, DCCH). Further, broadcast channels include Broadcast Control Channel (Broadcast Control Channel, BCCH), Frequency Correction Channel (Frequency Correction Channel, FCCH) and Synchronization Channel (Synchronization Channel, SCH); public control channels include Random Access Channel (Random Access Channel) Channel, RACH), Paging Channel (Paging Channel, PCH), Access Grant Channel (Access Grant Channel, AGCH) and Cell Broadcast Channel (CBCH), of which only RACH is a unidirectional uplink channel, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/14
CPCH04W72/23
Inventor 王济勇余勇军房明舒兵
Owner HUAWEI TECH CO LTD