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A control channel resource allocation method and system

A control channel resource and control channel technology, applied in the field of control channel resource allocation method and system, can solve problems such as control channel interference, and achieve the effects of suppressing control channel interference, improving service quality, and reducing power consumption

Active Publication Date: 2011-12-14
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a control channel resource configuration method and system to solve the problem of control channel interference in adjacent cells

Method used

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  • A control channel resource allocation method and system
  • A control channel resource allocation method and system
  • A control channel resource allocation method and system

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Experimental program
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specific Embodiment 1

[0055] use figure 1 In the frame structure shown, the system information channel transmitted by the base station BS-A in a basic frame carries a control channel resource start position description field (as shown in Table 3), and the control channel resource start position description field describes is the initial OFDM symbol position information of the control channel. For example, this field describes that the control channel starts from the (T+S)th OFDM symbol in the frame, where T is the preamble sequence and the number of OFDM symbols occupied by the system information channel, that is, the number of OFDM symbols occupied by the system information channel The first OFDM after the OFDM symbol is the Sth OFDM symbol of the starting point.

[0056] After receiving the system information channel, the terminal determines the start decoding position of the control channel according to the control channel resource start position description field.

[0057] The terminal does n...

specific Embodiment 2

[0058] use figure 1 In the frame structure shown, the system information channel transmitted by the base station BS-A in a basic frame carries a control channel resource start position description field (as shown in Table 3), and the control channel resource start position description field describes is the initial OFDM symbol position information of the control channel. For example, this field describes that the control channel starts from the (T+S)th OFDM symbol in the frame, where T is the preamble sequence and the number of OFDM symbols occupied by the system information channel, that is, the number of OFDM symbols occupied by the system information channel The first OFDM after the OFDM symbol is the Sth OFDM symbol of the starting point.

[0059] The base station BS-A uses the (T+S)th to (T+Z)th OFDM symbols in the basic frame to transmit the control channel, where the value of Z is notified to the terminal by the control channel period indication field carried by the sy...

specific Embodiment 3

[0062] use figure 1 In the frame structure shown, the system information channel transmitted by the base station BS-A in a basic frame carries a control channel resource start position description field (as shown in Table 3), and the control channel resource start position description field describes is the initial OFDM symbol position information of the control channel. For example, this field describes that the control channel starts from the (T+S)th OFDM symbol in the frame, where T is the preamble sequence and the number of OFDM symbols occupied by the system information channel, that is, the number of OFDM symbols occupied by the system information channel The first OFDM after the OFDM symbol is the Sth OFDM symbol of the starting point.

[0063] The base station BS-A uses the (T+S)th to (T+Z)th OFDM symbols in the basic frame to transmit the control channel, where the value of Z is notified to the terminal by the control channel period indication field carried by the sy...

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Abstract

A method and system for configuring control channel resources is provided by the invention, and the method comprises the following steps: a base station carries a control channel resources starting position description field in a system information channel of a basic frame, and after said system information channel is received, a terminal determines the starting decoding position of the control channel according to said control channel resources starting position description field. Aiming at the control interference problem between adjacent cells, the scheme of the present invention promotes a new method for configuring control channel resources, which can suppress the control channel interference between adjacent cells, improve the utilization rate of the air interface resources, reduce the power consumption of the terminal and improve the service quality of the system.

Description

technical field [0001] The present invention belongs to the communication field, and in particular relates to a control channel resource configuration method and system. Background technique [0002] In a communication system using Orthogonal Frequency Division Multiplexing (OFDM) technology, the basic parameters of the system are shown in Table 1. An OFDM symbol includes 256 subcarriers in the frequency domain, of which 224 data subcarriers , 6 phase tracking pilot subcarriers, and 26 virtual subcarriers (guard subcarriers). [0003] Table 1 OFDM basic parameters [0004] [0005] The basic frame (one time unit) structure of the above system is as follows figure 1 As shown, it mainly consists of preamble sequence, system information channel, control channel, transmission channel and so on. The number of OFDM symbols occupied by the control channel is the information carried in the system control channel sent by the base station (central access point) (as shown in Tabl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04W72/04
CPCH04L5/0053H04L5/0062H04L5/0091H04L5/0007H04L5/006Y02B60/50H04W72/0453Y02D30/70
Inventor 鲁照华刘锟宁迪浩朱登魁
Owner ZTE CORP
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