WO2012151946A1 - 一种数据发送方法和系统 - Google Patents
一种数据发送方法和系统 Download PDFInfo
- Publication number
- WO2012151946A1 WO2012151946A1 PCT/CN2011/082880 CN2011082880W WO2012151946A1 WO 2012151946 A1 WO2012151946 A1 WO 2012151946A1 CN 2011082880 W CN2011082880 W CN 2011082880W WO 2012151946 A1 WO2012151946 A1 WO 2012151946A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- channel
- uplink
- downlink
- area
- frame
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
Definitions
- the present invention relates to the field of communications, and in particular, to a data transmission method and system. Background technique
- the cellular mobile communication system is mainly designed for high-speed mobile and seamless handover traditional telecommunication services.
- IP Internet Protocol
- the efficiency is low and the cost is too high.
- LTE Long Term Evolution
- OFDM Orthogonal Frequency Division Multiplexing
- the main object of the present invention is to provide a data transmission method and system, which solves the problems of high control overhead and high product implementation complexity of the existing wireless communication standard.
- a data transmission method includes:
- a downlink area is carried in a frame;
- the area includes at least one of a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel, where the basic frame information carries content required for decoding the control channel region; and, the synchronization channel is located before the basic frame information, and The frame information is located before the control channel region, and the control channel region is located before the downlink traffic channel;
- the base station transmits the frame to the terminal.
- the frame is composed of an integer number of OFDM symbols, or the time length of the frame is fixed.
- the synchronization channel occupies one or two OFDM symbols.
- the basic frame information occupies N OFDM symbols, where N is a natural number whose value is less than or equal to 10.
- the downlink area includes a downlink feedback channel, where the downlink feedback channel is located between the control channel area and the downlink traffic channel, or between the basic frame information and the control channel area; or
- the downlink area includes a downlink sounding channel, and the downlink sounding channel is located between the control channel area and the downlink traffic channel, or between the basic frame information and the control channel area or between;
- the downlink feedback channel is located before or after the downlink sounding channel.
- the basic frame information includes initial OFDM symbol position information of a resource allocated for the control channel region;
- the basic frame information includes a system parameter message presence indication field, which is used to indicate whether the system parameter message is carried in the frame; or
- the basic frame information includes downlink traffic channel OFDM symbol CP length indication information and/or uplink traffic channel OFDM symbol cyclic prefix CP length indication information;
- the system parameter message includes a system parameter message update counter and/or a system parameter message transmission period and/or downlink feedback channel resource allocation information and/or uplink feedback channel resource allocation information and/or access channel resource allocation information and/or Or downlink sounding channel transmission period and/or channel state feedback channel resource allocation.
- the spectral efficiency of the basic frame information is less than or equal to the spectral efficiency of the control channel region, or the modulation and coding manner of the basic frame information is the same as the modulation and coding mode of the control channel region.
- the terminal decodes the basic frame information to obtain a parameter related to the number of OFDM symbols included in the uplink region;
- the uplink area When the uplink area is included in the frame, the uplink area includes at least an uplink traffic channel, and the terminal acquires the uplink traffic channel resource by means of time division and/or frequency division; or when the frame includes an uplink area
- the uplink area includes at least an uplink traffic channel and an access channel, where the access channel is located after the uplink traffic channel in time, or the access channel and the uplink traffic channel pass a frequency division manner.
- the uplink area includes at least an uplink traffic channel and an uplink sounding channel, where the uplink sounding channel is temporally located before the uplink traffic channel; or, in the frame When the uplink area is included, the uplink area includes at least an uplink sounding channel, and the uplink sounding channel is at a start position of the uplink area; or
- the uplink area When the uplink area is included in the frame, the uplink area includes at least a scheduling request channel and a channel state feedback channel, and the scheduling request channel and the channel state feedback channel occupy resources by means of frequency division or code division;
- the frame includes an uplink traffic channel, and the scheduling request channel and the channel state feedback channel are temporally located before the uplink traffic channel. among them,
- the terminal obtains the number of OFDM symbols included in the uplink region based on the frame length of the frame and the downlink region length indication information carried in the basic frame information.
- a data transmission system comprising a frame format processing unit and a sending unit, wherein the frame format processing unit is configured to carry a downlink area in a frame in a communication system adopting a time division duplexing technology;
- the downlink area includes synchronization At least one of a channel, a basic frame information, a control channel region, and a downlink traffic channel, where the basic frame information carries content required for decoding the control channel region; and, the synchronization channel is located before the basic frame information, and the basic frame information is located.
- the control channel region is located before the downlink traffic channel;
- the sending unit is configured to send the frame to a terminal.
- the frame is composed of an integer number of OFDM symbols, or the time length of the frame is fixed.
- the synchronization channel occupies one or two OFDM symbols.
- the basic frame information occupies N OFDM symbols, where N is a natural number whose value is less than or equal to 10.
- the downlink area includes a downlink feedback channel, where the downlink feedback channel is located between the control channel area and the downlink traffic channel, or between the basic frame information and the control channel area; or
- the downlink area includes a downlink sounding channel, and the downlink sounding channel is located between the control channel area and the downlink traffic channel, or between the basic frame information and the control channel area or between;
- the downlink feedback channel is located before or after the downlink sounding channel.
- the basic frame information includes a starting OFDM of resources allocated for the control channel region Symbol location information; or,
- the basic frame information includes a system parameter message presence indication field, which is used to indicate whether the system parameter message is carried in the frame; or
- the basic frame information includes downlink traffic channel OFDM symbol CP length indication information and/or uplink traffic channel OFDM symbol CP length indication information;
- the system parameter message includes a system parameter message update counter and/or a system parameter message transmission period and/or downlink feedback channel resource allocation information and/or uplink feedback channel resource allocation information and/or access channel resource allocation information and/or Or downlink sounding channel transmission period and/or channel state feedback channel resource allocation.
- the spectral efficiency of the basic frame information is less than or equal to the spectral efficiency of the control channel region, or the modulation and coding manner of the basic frame information is the same as the modulation and coding mode of the control channel region.
- the parameter related to the number of OFDM symbols included in the uplink area is calculated by decoding basic frame information;
- the uplink area When the uplink area is included in the frame, the uplink area includes at least an uplink traffic channel, and the uplink traffic channel resource is obtained by time division and/or frequency division; or
- the uplink area When the uplink area is included in the frame, the uplink area includes at least an uplink traffic channel and an access channel, where the access channel is temporally located after the uplink traffic channel, or the access channel and the access channel are The uplink traffic channel is configured to acquire an uplink resource by using a frequency division method.
- the uplink region includes at least an uplink traffic channel and an uplink sounding channel, and the uplink sounding channel is temporally located in an uplink traffic channel.
- the uplink area includes at least an uplink sounding channel, and the uplink sounding channel is at a start position of the uplink area; or
- the uplink area includes at least a scheduling request channel and a channel state feedback channel, where the scheduling request channel and the channel state feedback channel occupy resources by means of frequency division or code division;
- the frame includes an uplink traffic channel, and the scheduling request channel and the channel state feedback channel are temporally located before the uplink traffic channel.
- the terminal is further configured to obtain, according to a frame length of the frame and a downlink area length indication information carried in the basic frame information, a number of OFDM symbols included in the uplink area.
- the data transmission technology of the invention solves the problem of large control cost and high product realization complexity of the existing wireless communication standard by setting and using key parameters such as reasonable subcarrier spacing, number of available subcarriers, number of protected subcarriers, and CP length.
- the problem is to better meet the needs of the fast-growing data users and the future development of the wireless communications industry.
- FIG. 1 is a schematic diagram of a data transmission process according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram of a downlink structure of a frame structure according to Embodiments 1, 6 to 10 of the present invention
- FIG. 3 is a schematic diagram of a downlink structure of a frame structure according to Embodiment 2 of the present invention.
- FIG. 4 is a schematic diagram of a downlink structure of a frame structure according to Embodiment 3 of the present invention.
- FIG. 5 is a schematic diagram of a downlink structure of a frame structure according to Embodiment 4 of the present invention.
- FIG. 6 is a schematic diagram of a downlink structure of a frame structure according to Embodiment 5 of the present invention.
- FIG. 7 is a schematic structural diagram of a frame according to Embodiment 11 of the present invention.
- FIGS. 8a to 8c are schematic diagrams showing a frame structure according to Embodiment 12 of the present invention.
- 9a and 9b are schematic diagrams showing a frame structure according to Embodiment 13 of the present invention.
- FIG. 10 is a schematic structural diagram of a frame according to Embodiment 14 of the present invention.
- FIG. 11 is a schematic structural diagram of a frame according to Embodiment 15 of the present invention.
- FIG. 12a to 12h are schematic diagrams showing a frame structure of a typical combination of the present invention
- FIG. 13 is a diagram of a data transmission system according to an embodiment of the present invention. detailed description
- the frame may include a downlink area, where the downlink area includes at least one of a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel, where the basic
- the frame information carries the content required to decode the control channel region, where the synchronization channel is located before the basic frame information, the basic frame information is located before the control channel region, and the control channel region is located in the Before the downlink traffic channel.
- the base station transmits the frame to the terminal.
- the frame may be composed of an integer number of OFDM symbols.
- the synchronization channel can occupy one or two OFDM symbols.
- the basic frame information may occupy N OFDM symbols, where N is a natural number whose value is less than or equal to 10.
- the downlink area may include a downlink feedback channel, where the downlink feedback channel may be located between the control channel area and the downlink traffic channel, or located in the basic frame information and the control channel. Between the regions.
- the downlink area may include a downlink sounding channel, where the downlink sounding channel may be located between the control channel area and the downlink traffic channel, or between the basic frame information and the control channel area.
- the downlink area may include a downlink feedback channel, where the downlink feedback channel may be located before or after the downlink sounding channel.
- the basic frame information may include a start of a resource allocated for the control channel region
- the basic frame information may also include a system parameter message presence indication field, configured to indicate whether the system parameter message is carried in the frame.
- the system parameter message includes a system parameter message update counter and/or a system parameter message Delivery period and/or downlink feedback channel resource allocation information and/or uplink feedback channel resource allocation information and/or access channel resource allocation information and/or downlink sounding channel transmission period and/or channel state feedback channel resource allocation.
- the basic frame information may have a downlink traffic channel OFDM symbol CP (Cyclic Prefix) length indication information and/or an uplink traffic channel OFDM symbol length indication information.
- OFDM symbol CP Cyclic Prefix
- the spectral efficiency of the basic frame information is less than or equal to the spectral efficiency of the control channel region.
- the modulation and coding mode of the basic frame information may be the same as the modulation and coding mode of the control channel region.
- the frame may also include an uplink area, and the terminal decodes the basic frame information and calculates to obtain the number of OFDM symbols included in the uplink area.
- the terminal may obtain the number of OFDM symbols included in the uplink region based on the frame length of the frame and the downlink region length indication information carried in the basic frame information.
- the uplink area When the uplink area is included in the frame, the uplink area includes at least an uplink traffic channel, and the terminal acquires the uplink traffic channel resource by means of time division and/or frequency division.
- the uplink area may include at least an uplink traffic channel and an access channel, where the access channel may be located after the uplink traffic channel or the access channel. Obtaining uplink resources by using the frequency division manner with the uplink traffic channel.
- the uplink area may include at least an uplink service channel and an uplink sounding channel, and the uplink sounding channel may be located before the uplink traffic channel in time.
- the uplink area may include at least an uplink sounding channel, and the uplink sounding channel may be at a start position of the uplink area.
- the uplink area may include at least a scheduling request letter. And a channel state feedback channel, the scheduling request channel and the channel state feedback channel occupy resources by means of frequency division or code division.
- the scheduling request channel and the channel state feedback channel may be located in front of the uplink traffic channel in time, the scheduling request channel, the channel state feedback channel, and the uplink.
- the traffic channel occupies resources by means of frequency division.
- Figure 1 shows a flow chart of the frame structure design and usage of the communication system. The specific steps include:
- Step 102 In a communication system that adopts a time division duplexing technology, the downlink area is carried in a frame, where the downlink area includes at least one of a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel, where the basic frame information is used. Carrying content required for decoding the control channel region; and, the synchronization channel is located before the basic frame information, the basic frame information is located before the control channel region, and the control channel region is located before the downlink traffic channel;
- Step 104 The base station sends the frame to the terminal.
- a frame in a communication system using a time division duplexing technology, includes a downlink area, where the downlink area includes a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel, where the basic frame information is carried.
- the base station transmits the frame to the terminal.
- a frame in a communication system using time division duplexing technology, includes a downlink area, and the downlink area includes a synchronization channel, basic frame information, a control channel area, a downlink feedback channel, and a downlink traffic channel, where the basic The frame information carries content required for decoding the control channel region;
- the synchronization channel is located before the basic frame information, the basic frame information is located before the control channel region, the control channel region is located before the downlink traffic channel, and the downlink feedback channel is located between the control channel region and the downlink traffic channel.
- the base station transmits the frame to the terminal.
- a frame in a communication system using time division duplexing technology, includes a downlink area, and the downlink area includes a synchronization channel, basic frame information, a downlink feedback channel, a control channel region, and a downlink traffic channel, where the basic The frame information carries content required for decoding the control channel region; wherein, the synchronization channel is located before the basic frame information, the basic frame information is located before the control channel region, the control channel region is located before the downlink traffic channel, and the downlink feedback channel is located at the Between the basic frame information and the control channel region.
- the base station transmits the frame to the terminal.
- a frame in a communication system using time division duplexing technology, includes a downlink area, and the downlink area includes a synchronization channel, basic frame information, a control channel area, a downlink sounding channel, and a downlink traffic channel, where the basic The frame information carries the content required for decoding the control channel region; wherein, the synchronization channel is located before the basic frame information, the basic frame information is located before the control channel region, the control channel region is located before the downlink traffic channel, and the downlink detection channel is located at the location Between the control channel region and the downlink traffic channel.
- the base station transmits the frame to the terminal.
- a frame in a communication system using time division duplexing technology, includes a downlink area, and the downlink area includes a synchronization channel, basic frame information, a downlink sounding channel, a control channel region, and a downlink traffic channel, where the basic
- the frame information carries content required for decoding the control channel region; wherein, the synchronization channel is located before the basic frame information, and the basic frame information is located before the control channel region,
- the control channel region is located before the downlink traffic channel, and the downlink sounding channel is located between the basic frame information and the control channel region.
- the base station transmits the frame to the terminal.
- a frame in a communication system using a time division duplexing technology, includes a downlink area, where the downlink area includes a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel, where the basic frame information is carried.
- Decoding the content required for the control channel region eg, starting OFDM symbol position information of the resource allocated by the control channel region; wherein the synchronization channel is located before the basic frame information, and the basic frame information is located before the control channel region, and the control channel
- the area is located before the downlink traffic channel.
- the base station transmits the frame to the terminal.
- a frame in a communication system using time division duplexing technology, includes a downlink area, and the downlink area includes a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel; and the basic frame information includes a system.
- the parameter message presence indication field is used to indicate whether the system parameter message is carried in the frame.
- the synchronization channel is located before the basic frame information, the basic frame information is located before the control channel region, and the control channel region is located before the downlink traffic channel.
- the base station transmits the frame to the terminal.
- the system parameter message includes a system parameter message update counter and/or a system parameter message transmission period and/or downlink feedback channel resource allocation information and/or uplink feedback channel resource allocation information and/or access channel resource allocation information and / or downlink sounding channel transmission period and / or channel state feedback channel resource allocation.
- the system parameter message may be sent on a downlink traffic channel or may be sent at a specific location in a downlink area, where the specific location may be a standard default configuration.
- a frame in a communication system using a time division duplexing technology, includes a downlink area, where the downlink area includes a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel, where the basic frame information is carried.
- the base station transmits the frame to the terminal.
- the basic frame information includes downlink traffic channel OFDM symbol CP length indication information and/or uplink traffic channel OFDM symbol CP length indication information, and the terminal decodes the downlink or uplink traffic channel based on the foregoing information.
- a frame in a communication system using a time division duplexing technology, includes a downlink area, where the downlink area includes a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel; and the basic frame information carries The content required for decoding the control channel region, the spectral efficiency of the basic frame information is less than or equal to the spectral efficiency of the control channel region.
- the synchronization channel is located before the basic frame information
- the basic frame information is located before the control channel region
- the control channel region is located before the downlink traffic channel.
- the base station transmits the frame to the terminal.
- a frame in a communication system using a time division duplexing technology, includes a downlink area, where the downlink area includes a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel, where the basic frame information is carried.
- the content required for decoding the control channel region is the same as the modulation and coding mode of the control channel region.
- the synchronization channel is located before the basic frame information, the basic frame information is located before the control channel region, and the control channel region is located before the downlink traffic channel.
- the base station transmits the frame to the terminal.
- Example 11
- a frame in a communication system using time division duplexing, includes a downlink area, and the downlink area includes a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel, where the basic frame information is carried.
- the base station transmits the frame to the terminal.
- the frame includes an uplink area, and after the terminal decodes the basic frame information, the number of available OFDM symbols included in the uplink area is calculated (excluding the uplink to downlink transition time).
- the terminal is based on a frame length of the frame (a signaling or a standard default configuration or obtained by a time interval between two synchronization channels) and a downlink area length indication information carried in the basic frame information, Obtaining the number of OFDM symbols included in the uplink region.
- a frame length of the frame a signaling or a standard default configuration or obtained by a time interval between two synchronization channels
- a downlink area length indication information carried in the basic frame information
- a frame includes a downlink area, where the downlink area includes a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel, where the basic frame information carries the decoded control channel area.
- the required content wherein, the synchronization channel is located before the basic frame information, the basic frame information is located before the control channel region, and the control channel region is located before the downlink traffic channel.
- the base station transmits the frame to the terminal.
- the frame includes an uplink area, where the uplink area includes at least an uplink traffic channel, and the terminal acquires the uplink traffic channel resource by means of time division and/or frequency division.
- a frame includes a downlink area, where the downlink area includes a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel, where the basic frame information carries the decoded control channel area.
- the synchronization channel is located at the base Before the frame information, the basic frame information is located before the control channel region, and the control channel region is located before the downlink traffic channel.
- the base station transmits the frame to the terminal.
- the frame includes an uplink area, where the uplink area includes at least an uplink traffic channel and an access channel, where the access channel is temporally located after the uplink traffic channel, or
- the access channel and the uplink traffic channel acquire uplink resources by using a frequency division manner.
- a frame includes a downlink area, where the downlink area includes a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel, where the basic frame information carries the decoded control channel area.
- the required content wherein, the synchronization channel is located before the basic frame information, the basic frame information is located before the control channel region, and the control channel region is located before the downlink traffic channel.
- the base station transmits the frame to the terminal.
- the frame includes an uplink area, where the uplink area includes at least an uplink traffic channel and an uplink sounding channel, and the uplink sounding channel is temporally located before the uplink traffic channel.
- a frame includes a downlink area, where the downlink area includes a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel, where the basic frame information carries the decoded control channel area.
- the required content wherein, the synchronization channel is located before the basic frame information, the basic frame information is located before the control channel region, and the control channel region is located before the downlink traffic channel.
- the base station transmits the frame to the terminal.
- the frame includes an uplink area, and the uplink area includes at least an uplink.
- a sounding channel the uplink sounding channel being at a starting position of the uplink region.
- a frame includes a downlink area, where the downlink area includes a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel, where the basic frame information carries the decoded control channel area.
- the required content wherein, the synchronization channel is located before the basic frame information, the basic frame information is located before the control channel region, and the control channel region is located before the downlink traffic channel.
- the base station transmits the frame to the terminal.
- the frame includes an uplink area, where the uplink area includes at least a scheduling request channel and a channel state feedback channel, and the scheduling request channel and the channel state feedback channel occupy resources by means of frequency division or code division.
- a frame includes a downlink area, where the downlink area includes a synchronization channel, basic frame information, a control channel area, and a downlink traffic channel, where the basic frame information carries the decoded control channel area.
- the required content wherein, the synchronization channel is located before the basic frame information, the basic frame information is located before the control channel region, and the control channel region is located before the downlink traffic channel.
- the base station transmits the frame to the terminal.
- the frame includes an uplink area, where the uplink area includes at least a scheduling request channel, a channel state feedback channel, and an uplink traffic channel, and the scheduling request channel and the channel state feedback channel occupy resources by means of frequency division or code division. And the scheduling request channel and the channel state feedback channel are located in time before the uplink traffic channel, or the scheduling request channel and the channel state feedback channel and the uplink traffic channel occupy resources by frequency division. .
- the frame includes an integer number of OFDM symbols.
- the synchronization channel occupies 1 or 2 OFDM symbol.
- the basic frame information occupies N OFDM symbols; wherein N is a natural number whose value is greater than or equal to 1 and less than or equal to 10.
- Fig. 12 shows various typical combinations of the frame structure design of the present invention, and the design contents of the above embodiments can be implemented in the frame structure shown in Fig. 12.
- the downlink feedback channel, the downlink sounding channel, the uplink feedback channel, the uplink sounding channel, the scheduling request channel, the channel state feedback channel, the access channel, and the like may be one or more. Frames are transmitted in units of time, ie these channels do not have to be present every frame.
- the downlink area includes a handover time interval (TTG, receive transition gap) from the base station to the receiving, and the uplink area includes a handover time interval (RTG, receive/transmit transition gap) of the base station.
- TSG handover time interval
- RTG handover time interval
- some TSGs may not be included in the downlink area due to different application environments, and some RTGs may not be included in the downlink area due to different application environments.
- FIG. 13 is a diagram of a data transmission system according to an embodiment of the present invention, where the system includes a connected frame format processing unit and a sending unit.
- the frame format processing unit and the sending unit may be disposed in the base station.
- the frame format processing unit can carry a downlink region in a frame in a communication system adopting a time division duplexing technology; the downlink region includes at least a synchronization channel, basic frame information, a control channel region, and a downlink traffic channel.
- the basic frame information carries the content required for decoding the control channel region; and, the synchronization channel is located before the basic frame information, the basic frame information is located before the control channel region, and the control channel region is located before the downlink traffic channel.
- the transmitting unit can transmit the frame to the terminal.
- the data transmission technology of the present invention passes through both the method and the system.
- Reasonable subcarrier spacing, number of available subcarriers, number of protected subcarriers, CP length and other key parameters are set and used to solve the problem of high control overhead and high product complexity of existing wireless communication standards, and better meet the high-speed development. The needs of data users and the future development of the wireless communications industry.
- the present invention discloses a data transmission method and system, which can carry a downlink area in a frame in a communication system adopting time division duplex technology; the downlink area includes a synchronization channel, basic frame information, a control channel area, and a downlink service. At least one of the channels, the basic frame information carries content required for decoding the control channel region; and, the synchronization channel is located before the basic frame information, the basic frame information is located before the control channel region, and the control channel region is located in the downlink traffic channel. prior to.
- the base station transmits the frame to the terminal.
- the data transmission technology of the invention solves the problem of large control cost and high product realization complexity of the existing wireless communication standard by setting and using key parameters such as reasonable subcarrier spacing, number of available subcarriers, number of protected subcarriers, and CP length.
- the problem is to better meet the needs of the fast-growing data users and the future development of the wireless communications industry.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
本发明公开了一种数据发送方法和系统,均可在采用时分双工技术的通信系统中,在帧中携带下行区域;所述下行区域包含同步信道、基本帧信息、控制信道区域、下行业务信道中至少之一,所述基本帧信息中携带解码所述控制信道区域所需的内容;并且,同步信道位于基本帧信息之前,基本帧信息位于控制信道区域之前,控制信道区域位于下行业务信道之前。基站将所述帧发送给终端。本发明的数据发送技术,通过合理的子载波间隔、可用子载波数、保护子载波数、CP长度等关键参数的设置及使用,解决现有无线通信标准控制开销大、产品实现复杂度高的问题,更好地满足高速发展的数据用户和无线通信产业未来发展的需要。
Description
一种数据发送方法和系统 技术领域
本发明涉及通信领域, 具体涉及一种数据发送方法和系统。 背景技术
随着移动互联网的发展和智能手机的普及, 移动数据流量需求飞速增 长, 快速增长的数据业务对移动通信网络的传输能力提出了严峻挑战。
蜂窝移动通信系统主要面向高速移动、 无缝切换的传统电信业务设计, 当其承载大流量低速 IP (互联网协议)数据包业务时, 效率偏低, 成本过 高。 以采用 OFDM ( Orthogonal Frequency Division Multiplexing, 正交频分 复用 )技术的 LTE ( Long Term Evolution, 长期演进)标准为例, 其在帧结 构、 资源分配、 控制信道、 导频、 网络架构等方面均是为满足高速移动、 无缝切换的传统电信需求设计的, 导致系统控制开销接近 30%, 而且增加 了产品的实现复杂度和成本。
基于上述分析, 蜂窝移动通信领域需要有自己的低成本、 适合游牧 /本 地无线数据接入的解决方案, 用以解决现有无线通信标准控制开销大、 产 品实现复杂度高的问题。 但目前为止, 尚未出现比较有效的解决方案。 发明内容
有鉴于此, 本发明的主要目的在于提供一种数据发送方法和系统, 以 解决现有无线通信标准控制开销大、 产品实现复杂度高的问题。
为达到上述目的, 本发明的技术方案是这样实现的:
一种数据发送方法, 包括:
在采用时分双工技术的通信系统中, 在帧中携带下行区域; 所述下行
区域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道中至少之 一, 所述基本帧信息中携带解码所述控制信道区域所需的内容; 并且, 同 步信道位于基本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信 道区域位于下行业务信道之前;
基站将所述帧发送给终端。
其中, 所述帧由整数个 OFDM符号构成, 或所述帧的时间长度固定。 其中, 所述同步信道占用一个或两个 OFDM符号。
其中,所述基本帧信息占用 N个 OFDM符号,其中 N为取值小于等于 10的自然数。
其中,
所述下行区域中包含下行反馈信道, 所述下行反馈信道位于所述控制 信道区域与所述下行业务信道之间, 或位于所述基本帧信息与所述控制信 道区域之间; 或者,
所述下行区域中包含下行探测信道, 所述下行探测信道位于所述控制 信道区域与所述下行业务信道之间, 或位于所述基本帧信息与所述控制信 道区或之间;
所述下行区域中包含下行反馈信道时, 所述下行反馈信道位于所述下 行探测信道之前或之后。
其中,
所述基本帧信息中包含为所述控制信道区域分配的资源的起始 OFDM 符号位置信息; 或者,
所述基本帧信息中包含系统参数消息存在指示字段, 用于指示所述帧 中是否携带系统参数消息; 或者,
所述基本帧信息中包含下行业务信道 OFDM符号 CP长度指示信息和 / 或上行业务信道 OFDM符号循环前缀 CP长度指示信息;
其中, 所述系统参数消息包含系统参数消息更新计数器和 /或系统参数 消息发送周期和 /或下行反馈信道资源分配信息和 /或上行反馈信道资源分 配信息和 /或接入信道资源分配信息和 /或下行探测信道发送周期和 /或信道 状态反馈信道资源分配。
其中,
所述基本帧信息的频谱效率小于或等于所述控制信道区域的频谱效 率, 或者所述基本帧信息的调制编码方式与所述控制信道区域的调制编码 方式相同。
其中,
所述帧中包含上行区域时, 所述终端解码所述基本帧信息获得与所述 上行区域包含的 OFDM符号数有关的参数; 或者,
所述帧中包含上行区域时, 所述上行区域中至少包含上行业务信道, 所述终端通过时分和 /或频分的方式获取所述上行业务信道资源; 或者, 所述帧中包含上行区域时, 所述上行区域中至少包含上行业务信道和 接入信道, 其中, 所述接入信道在时间上位于所述上行业务信道之后, 或 者所述接入信道与所述上行业务信道通过频分方式获取上行资源; 或者, 所述帧中包含上行区域时, 所述上行区域中至少包含上行业务信道和 上行探测信道, 所述上行探测信道在时间上位于上行业务信道之前; 或者, 所述帧中包含上行区域时, 所述上行区域中至少包含上行探测信道, 所述上行探测信道处于所述上行区域的开始位置; 或者,
所述帧中包含上行区域时, 所述上行区域中至少包含调度请求信道和 信道状态反馈信道, 所述调度请求信道和所述信道状态反馈信道通过频分 或码分的方式占用资源;
所述帧中包含上行业务信道, 所述调度请求信道和所述信道状态反馈 信道在时间上位于所述上行业务信道之前。
其中,
所述终端基于所述帧的帧长和所述基本帧信息中携带的下行区域长度 指示信息获得所述上行区域包含的 OFDM符号数。
一种数据发送系统, 包括帧格式处理单元、 发送单元; 其中, 所述帧格式处理单元, 用于在采用时分双工技术的通信系统中, 在帧 中携带下行区域; 所述下行区域包含同步信道、 基本帧信息、 控制信道区 域、 下行业务信道中至少之一, 所述基本帧信息中携带解码所述控制信道 区域所需的内容; 并且, 同步信道位于基本帧信息之前, 基本帧信息位于 控制信道区域之前, 控制信道区域位于下行业务信道之前;
所述发送单元, 用于将所述帧发送给终端。
其中, 所述帧由整数个 OFDM符号构成, 或所述帧的时间长度固定。 其中, 所述同步信道占用一个或两个 OFDM符号。
其中,所述基本帧信息占用 N个 OFDM符号,其中 N为取值小于等于 10的自然数。
其中,
所述下行区域中包含下行反馈信道, 所述下行反馈信道位于所述控制 信道区域与所述下行业务信道之间, 或位于所述基本帧信息与所述控制信 道区域之间; 或者,
所述下行区域中包含下行探测信道, 所述下行探测信道位于所述控制 信道区域与所述下行业务信道之间, 或位于所述基本帧信息与所述控制信 道区或之间;
所述下行区域中包含下行反馈信道时, 所述下行反馈信道位于所述下 行探测信道之前或之后。
其中,
所述基本帧信息中包含为所述控制信道区域分配的资源的起始 OFDM
符号位置信息; 或者,
所述基本帧信息中包含系统参数消息存在指示字段, 用于指示所述帧 中是否携带系统参数消息; 或者,
所述基本帧信息中包含下行业务信道 OFDM符号 CP长度指示信息和 / 或上行业务信道 OFDM符号 CP长度指示信息;
其中, 所述系统参数消息包含系统参数消息更新计数器和 /或系统参数 消息发送周期和 /或下行反馈信道资源分配信息和 /或上行反馈信道资源分 配信息和 /或接入信道资源分配信息和 /或下行探测信道发送周期和 /或信道 状态反馈信道资源分配。
其中,
所述基本帧信息的频谱效率小于或等于所述控制信道区域的频谱效 率, 或者所述基本帧信息的调制编码方式与所述控制信道区域的调制编码 方式相同。
其中,
所述帧中包含上行区域时, 所述上行区域包含的与 OFDM符号数有关 的参数是通过解码基本帧信息并计算得到的; 或者,
所述帧中包含上行区域时, 所述上行区域中至少包含上行业务信道, 所述上行业务信道资源是通过时分和 /或频分的方式获取的; 或者,
所述帧中包含上行区域时, 所述上行区域中至少包含上行业务信道和 接入信道, 其中, 所述接入信道在时间上位于所述上行业务信道之后, 或 者所述接入信道与所述上行业务信道通过频分方式获取上行资源; 或者, 所述帧中包含上行区域时, 所述上行区域中至少包含上行业务信道和 上行探测信道, 所述上行探测信道在时间上位于上行业务信道之前; 或者, 所述帧中包含上行区域时, 所述上行区域中至少包含上行探测信道, 所述上行探测信道处于所述上行区域的开始位置; 或者,
所述帧中包含上行区域时, 所述上行区域中至少包含调度请求信道和 信道状态反馈信道, 所述调度请求信道和所述信道状态反馈信道通过频分 或码分的方式占用资源;
所述帧中包含上行业务信道, 所述调度请求信道和所述信道状态反馈 信道在时间上位于所述上行业务信道之前。
其中,
所述终端还用于基于所述帧的帧长和所述基本帧信息中携带的下行区 域长度指示信息获得所述上行区域包含的 OFDM符号数。
本发明的数据发送技术, 通过合理的子载波间隔、 可用子载波数、 保 护子载波数、 CP长度等关键参数的设置及使用, 解决现有无线通信标准控 制开销大、 产品实现复杂度高的问题, 更好地满足高速发展的数据用户和 无线通信产业未来发展的需要。 附图说明
图 1为本发明实施例的数据发送流程简图;
图 2为本发明实施例 1、 6至 10的帧结构下行区域示意图;
图 3为本发明实施例 2的帧结构下行区域示意图;
图 4为本发明实施例 3的帧结构下行区域示意图;
图 5为本发明实施例 4的帧结构下行区域示意图;
图 6为本发明实施例 5的帧结构下行区域示意图;
图 7为本发明实施例 11的帧结构示意图;
图 8a至图 8c为本发明实施例 12的帧结构示意图;
图 9a和图 9b为本发明实施例 13的帧结构示意图;
图 10为本发明实施例 14的帧结构示意图;
图 11为本发明实施例 15的帧结构示意图;
图 12a至图 12h为本发明典型组合的帧结构示意图;
图 13为本发明实施例的数据发送系统图。 具体实施方式
为了解决现有无线通信标准控制开销大、 产品实现复杂度高的问题; 以实现低成本, 适合游牧 /本地无线数据接入的解决方案, 更好地满足高速 发展的数据用户和无线通信产业未来发展的需要, 可以在采用时分双工技 术的通信系统中, 使帧中包含下行区域, 所述下行区域包含同步信道、 基 本帧信息、 控制信道区域、 下行业务信道中至少之一, 所述基本帧信息中 携带解码所述控制信道区域所需的内容; 其中, 所述同步信道位于所述基 本帧信息之前, 所述基本帧信息位于所述控制信道区域之前, 所述控制信 道区域位于所述下行业务信道之前。 基站将所述帧发送给终端。
具体而言, 所述帧可以由整数个 OFDM符号构成。 所述同步信道可以 占用一个或两个 OFDM符号。 所述基本帧信息可以占用 N个 OFDM符号, 其中 N为取值小于等于 10的自然数。
在实际应用场景中, 所述下行区域中可以包含下行反馈信道, 所述下 行反馈信道可以位于所述控制信道区域与所述下行业务信道之间, 或位于 所述基本帧信息与所述控制信道区域之间。
所述下行区域中可以包含下行探测信道, 所述下行探测信道可以位于 所述控制信道区域与所述下行业务信道之间, 或位于所述基本帧信息与所 述控制信道区域之间。
所述下行区域中可以包含下行反馈信道, 所述下行反馈信道可以位于 所述下行探测信道之前或之后。
所述基本帧信息中可以包含为所述控制信道区域分配的资源的起始
OFDM符号位置信息。 所述基本帧信息中也可以包含系统参数消息存在指 示字段, 用于指示所述帧中是否携带系统参数消息。
所述系统参数消息包含系统参数消息更新计数器和 /或系统参数消息发
送周期和 /或下行反馈信道资源分配信息和 /或上行反馈信道资源分配信息 和 /或接入信道资源分配信息和 /或下行探测信道发送周期和 /或信道状态反 馈信道资源分配。
所述基本帧信息中可以存在下行业务信道 OFDM 符号 CP ( Cyclic Prefix, 循环前缀)长度指示信息和 /或上行业务信道 OFDM符号长度指示 信息。
所述基本帧信息的频谱效率小于或等于所述控制信道区域的频谱效 率。
所述基本帧信息的调制编码方式可以与所述控制信道区域的调制编码 方式相同。
所述帧中也可以包含上行区域, 所述终端解码所述基本帧信息并计算 以获得所述上行区域包含的 OFDM符号数。
所述终端可以基于所述帧的帧长和所述基本帧信息中携带的下行区域 长度指示信息获得所述上行区域所包含的 OFDM符号数。
所述帧中包含上行区域时, 所述上行区域中至少包含上行业务信道, 所述终端通过时分和 /或频分的方式获取所述上行业务信道资源。
所述帧中包含上行区域时, 所述上行区域中可以至少包含上行业务信 道和接入信道; 其中, 所述接入信道在时间上可以位于所述上行业务信道 之后, 或者所述接入信道与所述上行业务信道通过频分方式获取上行资源。
所述帧中包含上行区域时, 所述上行区域中可以至少包含上行业务信 道和上行探测信道, 所述上行探测信道在时间上可以位于上行业务信道之 前。
所述帧中包含上行区域时, 所述上行区域中可以至少包含上行探测信 道, 所述上行探测信道可以处于所述上行区域的开始位置。
所述帧中包含上行区域时, 所述上行区域中可以至少包含调度请求信
道和信道状态反馈信道, 所述调度请求信道和所述信道状态反馈信道通过 频分或码分的方式占用资源。
所述帧中包含上行业务信道时, 所述调度请求信道和所述信道状态反 馈信道在时间上可以位于所述上行业务信道之前, 所述调度请求信道和所 述信道状态反馈信道与所述上行业务信道通过频分的方式占用资源。
参见图 1 , 图 1给出了通信系统帧结构设计及使用方法的流程图, 具体 步驟包括:
步驟 102 , 在采用时分双工技术的通信系统中, 在帧中携带下行区域; 所述下行区域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道 中至少之一, 所述基本帧信息中携带解码所述控制信道区域所需的内容; 并且, 同步信道位于基本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区域位于下行业务信道之前;
步驟 104, 基站将所述帧发送给终端。
下面结合实施例 1至实施例 17进一步说明图 1所示的流程。
实施例 1
如图 2所示, 采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道, 所述基本帧信息中携带解码所述控制信道区域所需的内容; 其中, 同步信 道位于基本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区 域位于下行业务信道之前。
基站将所述帧发送给终端。
实施例 2
如图 3所示, 采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区域包含同步信道、 基本帧信息、 控制信道区域、 下行反馈信道、 下行业务信道, 所述基本帧信息中携带解码所述控制信道区域所需的内容;
其中, 同步信道位于基本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区域位于下行业务信道之前, 所述下行反馈信道位于所述控制信 道区域与所述下行业务信道之间。
基站将所述帧发送给终端。
实施例 3
如图 4所示, 采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区域包含同步信道、 基本帧信息、 下行反馈信道、 控制信道区域、 下行业务信道, 所述基本帧信息中携带解码所述控制信道区域所需的内容; 其中, 同步信道位于基本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区域位于下行业务信道之前, 所述下行反馈信道位于所述基本帧 信息与所述控制信道区域之间。
基站将所述帧发送给终端。
实施例 4
如图 5所示, 采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区域包含同步信道、 基本帧信息、 控制信道区域、 下行探测信道、 下行业务信道, 所述基本帧信息中携带解码所述控制信道区域所需的内容; 其中, 同步信道位于基本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区域位于下行业务信道之前, 所述下行探测信道位于所述控制信 道区域与所述下行业务信道之间。
基站将所述帧发送给终端。
实施例 5
如图 6所示, 采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区域包含同步信道、 基本帧信息、 下行探测信道、 控制信道区域、 下行业务信道, 所述基本帧信息中携带解码所述控制信道区域所需的内容; 其中, 同步信道位于基本帧信息之前, 基本帧信息位于控制信道区域之前,
控制信道区域位于下行业务信道之前, 所述下行探测信道位于所述基本帧 信息与所述控制信道区域之间。
基站将所述帧发送给终端。
实施例 6
如图 2所示, 采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道, 所述基本帧信息中携带解码所述控制信道区域所需的内容(例如所述控制 信道区域分配的资源的起始 OFDM符号位置信息);其中, 同步信道位于基 本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区域位于下 行业务信道之前。
基站将所述帧发送给终端。
实施例 7
如图 2所示, 采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道; 所述基本帧信息包含系统参数消息存在指示字段, 用于指示所述帧中是否 携带系统参数消息。 其中, 同步信道位于基本帧信息之前, 基本帧信息位 于控制信道区域之前, 控制信道区域位于下行业务信道之前。
基站将所述帧发送给终端。
优选地, 所述系统参数消息包含系统参数消息更新计数器和 /或系统参 数消息发送周期和 /或下行反馈信道资源分配信息和 /或上行反馈信道资源 分配信息和 /或接入信道资源分配信息和 /或下行探测信道发送周期和 /或信 道状态反馈信道资源分配。
优选地, 所述系统参数消息可以在下行业务信道上发送, 也可以在下 行区域的特定位置上发送, 所述特定位置可以是标准缺省配置的。
实施例 8
如图 2所示, 采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道, 所述基本帧信息中携带解码所述控制信道区域所需的内容; 其中, 同步信 道位于基本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区 域位于下行业务信道之前。
基站将所述帧发送给终端。
所述基本帧信息中包含下行业务信道 OFDM符号 CP长度指示信息和 / 或上行业务信道 OFDM符号 CP长度指示信息, 所述终端基于上述信息解 码下行或上行业务信道。
实施例 9
如图 2所示, 采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道; 所述基本帧信息中携带解码所述控制信道区域所需的内容, 所述基本帧信 息的频谱效率小于或等于所述控制信道区域的频谱效率。 其中, 同步信道 位于基本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区域 位于下行业务信道之前。
基站将所述帧发送给终端。
实施例 10
如图 2所示, 采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道, 所述基本帧信息中携带解码所述控制信道区域所需的内容, 所述基本帧信 息的调制编码方式与所述控制信道区域的调制编码方式相同。 其中, 同步 信道位于基本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道 区域位于下行业务信道之前。
基站将所述帧发送给终端。
实施例 11
如图 7所示, 采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道, 所述基本帧信息中携带解码所述控制信道区域所需的内容; 其中, 同步信 道位于基本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区 域位于下行业务信道之前。
基站将所述帧发送给终端。
所述帧中包含上行区域, 所述终端解码所述基本帧信息后, 计算所述 上行区域包含的可用 OFDM符号数(不包括上行到下行的转换时间)。
优选地, 所述终端基于所述帧的帧长(信令通知或标准缺省配置或通 过两个同步信道之间的时间间隔获得 )和所述基本帧信息中携带的下行区 域长度指示信息, 获得所述上行区域包含的 OFDM符号数。
实施例 12
采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区 域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道, 所述基本 帧信息中携带解码所述控制信道区域所需的内容; 其中, 同步信道位于基 本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区域位于下 行业务信道之前。
基站将所述帧发送给终端。
如图 8所示, 所述帧中包含上行区域, 所述上行区域中至少包含上行 业务信道,所述终端通过时分和 /或频分的方式获取所述上行业务信道资源。
实施例 13
采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区 域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道, 所述基本 帧信息中携带解码所述控制信道区域所需的内容; 其中, 同步信道位于基
本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区域位于下 行业务信道之前。
基站将所述帧发送给终端。
如图 9所示, 所述帧中包含上行区域, 所述上行区域中至少包含上行 业务信道和接入信道; 其中, 所述接入信道在时间上位于所述上行业务信 道之后, 或者所述接入信道与所述上行业务信道通过频分方式获取上行资 源。
实施例 14
采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区 域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道, 所述基本 帧信息中携带解码所述控制信道区域所需的内容; 其中, 同步信道位于基 本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区域位于下 行业务信道之前。
基站将所述帧发送给终端。
如图 10所示, 所述帧中包含上行区域, 所述上行区域中至少包含上行 业务信道和上行探测信道, 所述上行探测信道在时间上位于上行业务信道 之前。
实施例 15
采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区 域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道, 所述基本 帧信息中携带解码所述控制信道区域所需的内容; 其中, 同步信道位于基 本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区域位于下 行业务信道之前。
基站将所述帧发送给终端。
如图 11所示, 所述帧中包含上行区域, 所述上行区域中至少包含上行
探测信道, 所述上行探测信道处于所述上行区域的开始位置。
实施例 16
采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区 域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道, 所述基本 帧信息中携带解码所述控制信道区域所需的内容; 其中, 同步信道位于基 本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区域位于下 行业务信道之前。
基站将所述帧发送给终端。
所述帧中包含上行区域, 所述上行区域中至少包含调度请求信道和信 道状态反馈信道, 所述调度请求信道和所述信道状态反馈信道通过频分或 码分的方式占用资源。
实施例 17
采用时分双工技术的通信系统中, 一帧中包含下行区域, 所述下行区 域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道, 所述基本 帧信息中携带解码所述控制信道区域所需的内容; 其中, 同步信道位于基 本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区域位于下 行业务信道之前。
基站将所述帧发送给终端。
所述帧中包含上行区域, 所述上行区域中至少包含调度请求信道、 信 道状态反馈信道、 上行业务信道, 所述调度请求信道和所述信道状态反馈 信道通过频分或码分的方式占用资源, 所述调度请求信道和所述信道状态 反馈信道在时间上位于所述上行业务信道之前, 或所述调度请求信道和所 述信道状态反馈信道与所述上行业务信道通过频分的方式占用资源。
优选地, 实施例 1至实施例 17中, 所述帧包含整数个 OFDM符号。 优选地,实施例 1至实施例 17中,所述同步信道占用 1个或 2个 OFDM
符号。
优选地, 实施例 1至实施例 17中, 所述基本帧信息占用 N个 OFDM 符号; 其中 N为取值大于等于 1、 小于等于 10的自然数。
图 12给出了本发明帧结构设计的多种典型组合, 上述实施例设计内容 均可在图 12所示的帧结构中实现。
需要说明的是, 实施例 1至实施例 17中, 下行反馈信道、 下行探测信 道、 上行反馈信道、 上行探测信道、 调度请求信道、 信道状态反馈信道、 接入信道等可以以 1 个或多个帧为时间单位进行发送, 即这些信道并不一 定是每帧都存在的。
并且, 本发明中下行区域中包含基站从发到收的转换时间间隔(TTG, transmit/receive transition gap ),上行区域中包含基站从收到发的转换时间间 隔( RTG , receive/transmit transition gap ); 在实际应用中, 也可能因不同的 应用环境导致有的下行区域中不包含 TTG, 也可能因不同的应用环境导致 有的下行区域中不包含 RTG。
为保证图 1 所示的本发明操作思路以及以上各实施例的顺序实现, 可 以进行如图 13所示的设置。 参见图 13 , 图 13为本发明实施例的数据发送 系统图, 该系统包括相连的帧格式处理单元、 发送单元。 帧格式处理单元、 发送单元均可设置于基站中。
在实际应用时, 帧格式处理单元能够在采用时分双工技术的通信系统 中, 在帧中携带下行区域; 所述下行区域包含同步信道、 基本帧信息、 控 制信道区域、 下行业务信道中至少之一, 所述基本帧信息中携带解码所述 控制信道区域所需的内容; 并且, 同步信道位于基本帧信息之前, 基本帧 信息位于控制信道区域之前, 控制信道区域位于下行业务信道之前。 发送 单元能够将所述帧发送给终端。
综上所述可见, 无论是方法还是系统, 本发明的数据发送技术, 通过
合理的子载波间隔、 可用子载波数、 保护子载波数、 CP长度等关键参数的 设置及使用, 解决现有无线通信标准控制开销大、 产品实现复杂度高的问 题, 更好地满足高速发展的数据用户和无线通信产业未来发展的需要。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。 工业实用性
本发明公开了一种数据发送方法和系统, 均可在采用时分双工技术的 通信系统中, 在帧中携带下行区域; 所述下行区域包含同步信道、 基本帧 信息、 控制信道区域、 下行业务信道中至少之一, 所述基本帧信息中携带 解码所述控制信道区域所需的内容; 并且, 同步信道位于基本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信道区域位于下行业务信道之前。 基站将所述帧发送给终端。 本发明的数据发送技术, 通过合理的子载波间 隔、 可用子载波数、 保护子载波数、 CP长度等关键参数的设置及使用, 解 决现有无线通信标准控制开销大、 产品实现复杂度高的问题, 更好地满足 高速发展的数据用户和无线通信产业未来发展的需要。
Claims
1、 一种数据发送方法, 包括:
在采用时分双工技术的通信系统中, 在帧中携带下行区域; 所述下行 区域包含同步信道、 基本帧信息、 控制信道区域、 下行业务信道中至少之 一, 所述基本帧信息中携带解码所述控制信道区域所需的内容; 并且, 同 步信道位于基本帧信息之前, 基本帧信息位于控制信道区域之前, 控制信 道区域位于下行业务信道之前;
基站将所述帧发送给终端。
2、 根据权利要求 1所述的方法, 其中, 所述帧由整数个正交频分复用 OFDM符号构成, 或所述帧的时间长度固定。
3、 根据权利要求 1所述的方法, 其中, 所述同步信道占用一个或两个 OFDM符号。
4、根据权利要求 1所述的方法,其中,所述基本帧信息占用 N个 OFDM 符号, 其中 N为取值小于等于 10的自然数。
5、 根据权利要求 1至 4任一项所述的方法, 其中,
所述下行区域中包含下行反馈信道, 所述下行反馈信道位于所述控制 信道区域与所述下行业务信道之间, 或位于所述基本帧信息与所述控制信 道区域之间; 或者,
所述下行区域中包含下行探测信道, 所述下行探测信道位于所述控制 信道区域与所述下行业务信道之间, 或位于所述基本帧信息与所述控制信 道区或之间;
所述下行区域中包含下行反馈信道时, 所述下行反馈信道位于所述下 行探测信道之前或之后。
6、 根据权利要求 1至 4任一项所述的方法, 其中,
所述基本帧信息中包含为所述控制信道区域分配的资源的起始 OFDM 符号位置信息; 或者,
所述基本帧信息中包含系统参数消息存在指示字段, 用于指示所述帧 中是否携带系统参数消息; 或者,
所述基本帧信息中包含下行业务信道 OFDM符号循环前缀 CP长度指 示信息和 /或上行业务信道 OFDM符号循环前缀 CP长度指示信息;
其中, 所述系统参数消息包含系统参数消息更新计数器和 /或系统参数 消息发送周期和 /或下行反馈信道资源分配信息和 /或上行反馈信道资源分 配信息和 /或接入信道资源分配信息和 /或下行探测信道发送周期和 /或信道 状态反馈信道资源分配。
7、 根据权利要求 1至 4任一项所述的方法, 其中,
所述基本帧信息的频谱效率小于或等于所述控制信道区域的频谱效 率, 或者所述基本帧信息的调制编码方式与所述控制信道区域的调制编码 方式相同。
8、 根据权利要求 1至 4任一项所述的方法, 其中,
所述帧中包含上行区域时, 所述终端解码所述基本帧信息获得与所述 上行区域包含的 OFDM符号数有关的参数; 或者,
所述帧中包含上行区域时, 所述上行区域中至少包含上行业务信道, 所述终端通过时分和 /或频分的方式获取所述上行业务信道资源; 或者, 所述帧中包含上行区域时, 所述上行区域中至少包含上行业务信道和 接入信道, 其中, 所述接入信道在时间上位于所述上行业务信道之后, 或 者所述接入信道与所述上行业务信道通过频分方式获取上行资源; 或者, 所述帧中包含上行区域时, 所述上行区域中至少包含上行业务信道和 上行探测信道, 所述上行探测信道在时间上位于上行业务信道之前; 或者, 所述帧中包含上行区域时, 所述上行区域中至少包含上行探测信道, 所述上行探测信道处于所述上行区域的开始位置; 或者, 所述帧中包含上行区域时, 所述上行区域中至少包含调度请求信道和 信道状态反馈信道, 所述调度请求信道和所述信道状态反馈信道通过频分 或码分的方式占用资源;
所述帧中包含上行业务信道, 所述调度请求信道和所述信道状态反馈 信道在时间上位于所述上行业务信道之前。
9、 根据权利要求 1至 4任一项所述的方法, 其中,
所述终端基于所述帧的帧长和所述基本帧信息中携带的下行区域长度 指示信息获得所述上行区域包含的 OFDM符号数。
10、 一种数据发送系统, 包括帧格式处理单元、 发送单元; 其中, 所述帧格式处理单元, 用于在采用时分双工技术的通信系统中, 在帧 中携带下行区域; 所述下行区域包含同步信道、 基本帧信息、 控制信道区 域、 下行业务信道中至少之一, 所述基本帧信息中携带解码所述控制信道 区域所需的内容; 并且, 同步信道位于基本帧信息之前, 基本帧信息位于 控制信道区域之前, 控制信道区域位于下行业务信道之前;
所述发送单元, 用于将所述帧发送给终端。
11、根据权利要求 10所述的系统, 其中, 所述帧由整数个 OFDM符号 构成, 或所述帧的时间长度固定。
12、 根据权利要求 10所述的系统, 其中, 所述同步信道占用一个或两 个 OFDM符号。
13、 根据权利要求 10所述的系统, 其中, 所述基本帧信息占用 N个 OFDM符号, 其中 N为取值小于等于 10的自然数。
14、 根据权利要求 10至 13任一项所述的系统, 其中,
所述下行区域中包含下行反馈信道, 所述下行反馈信道位于所述控制 信道区域与所述下行业务信道之间, 或位于所述基本帧信息与所述控制信 道区域之间; 或者, 所述下行区域中包含下行探测信道, 所述下行探测信道位于所述控制 信道区域与所述下行业务信道之间, 或位于所述基本帧信息与所述控制信 道区或之间;
所述下行区域中包含下行反馈信道时, 所述下行反馈信道位于所述下 行探测信道之前或之后。
15、 根据权利要求 10至 13任一项所述的系统, 其中,
所述基本帧信息中包含为所述控制信道区域分配的资源的起始 OFDM 符号位置信息; 或者,
所述基本帧信息中包含系统参数消息存在指示字段, 用于指示所述帧 中是否携带系统参数消息; 或者,
所述基本帧信息中包含下行业务信道 OFDM符号 CP长度指示信息和 / 或上行业务信道 OFDM符号 CP长度指示信息;
其中, 所述系统参数消息包含系统参数消息更新计数器和 /或系统参数 消息发送周期和 /或下行反馈信道资源分配信息和 /或上行反馈信道资源分 配信息和 /或接入信道资源分配信息和 /或下行探测信道发送周期和 /或信道 状态反馈信道资源分配。
16、 根据权利要求 10至 13任一项所述的系统, 其中,
所述基本帧信息的频谱效率小于或等于所述控制信道区域的频谱效 率, 或者所述基本帧信息的调制编码方式与所述控制信道区域的调制编码 方式相同。
17、 根据权利要求 10至 13任一项所述的系统, 其中,
所述帧中包含上行区域时, 所述上行区域包含的与 OFDM符号数有关 的参数是通过解码基本帧信息并计算得到的; 或者,
所述帧中包含上行区域时, 所述上行区域中至少包含上行业务信道, 所述上行业务信道资源是通过时分和 /或频分的方式获取的; 或者, 所述帧中包含上行区域时, 所述上行区域中至少包含上行业务信道和 接入信道, 其中, 所述接入信道在时间上位于所述上行业务信道之后, 或 者所述接入信道与所述上行业务信道通过频分方式获取上行资源; 或者, 所述帧中包含上行区域时, 所述上行区域中至少包含上行业务信道和 上行探测信道, 所述上行探测信道在时间上位于上行业务信道之前; 或者, 所述帧中包含上行区域时, 所述上行区域中至少包含上行探测信道, 所述上行探测信道处于所述上行区域的开始位置; 或者,
所述帧中包含上行区域时, 所述上行区域中至少包含调度请求信道和 信道状态反馈信道, 所述调度请求信道和所述信道状态反馈信道通过频分 或码分的方式占用资源;
所述帧中包含上行业务信道, 所述调度请求信道和所述信道状态反馈 信道在时间上位于所述上行业务信道之前。
18、 根据权利要求 10至 13任一项所述的系统, 其中,
所述终端还用于基于所述帧的帧长和所述基本帧信息中携带的下行区 域长度指示信息获得所述上行区域包含的 OFDM符号数。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110248178.4 | 2011-08-26 | ||
CN201110248178.4A CN102263729B (zh) | 2011-08-26 | 2011-08-26 | 一种帧结构处理方法和系统 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012151946A1 true WO2012151946A1 (zh) | 2012-11-15 |
Family
ID=45010188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2011/082880 WO2012151946A1 (zh) | 2011-08-26 | 2011-11-24 | 一种数据发送方法和系统 |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN102263729B (zh) |
WO (1) | WO2012151946A1 (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108496401B (zh) | 2016-02-05 | 2021-02-12 | 华为技术有限公司 | 上行子载波间隔指示方法、基站及终端 |
CN106793104B (zh) * | 2016-08-12 | 2019-04-30 | 展讯通信(上海)有限公司 | 同步信号指示资源方法及用户设备 |
CN107872306B (zh) * | 2016-09-23 | 2021-05-25 | 电信科学技术研究院 | 一种下行传输方法及相关设备 |
WO2018082135A1 (zh) * | 2016-11-04 | 2018-05-11 | 华为技术有限公司 | 一种基站、终端、系统和在通信系统中传输信号的方法 |
US10085281B2 (en) * | 2016-11-29 | 2018-09-25 | Qualcomm Incorporated | Channel access for a mixed numerology carrier |
CN109474990B (zh) * | 2017-09-08 | 2023-10-24 | 华为技术有限公司 | 资源配置方法、终端和网络设备 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1452326A (zh) * | 2002-04-15 | 2003-10-29 | 华为技术有限公司 | 无线局域网系统的移动终端接入和同步方法 |
CN1838577A (zh) * | 2005-03-25 | 2006-09-27 | 中国科学技术大学 | 一种移动通信中的帧分多址方法 |
WO2008041804A1 (en) * | 2006-10-02 | 2008-04-10 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting/receiving downlink synchronization channels in a cellular communication system supporting scalable bandwidth |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101287261B (zh) * | 2007-04-13 | 2012-07-18 | 中兴通讯股份有限公司 | 一种测量宽带无线信道质量的方法 |
EP2258123B1 (en) * | 2008-03-10 | 2019-06-05 | Apple Inc. | Methods for control signaling for wireless systems |
CN100539690C (zh) * | 2008-06-11 | 2009-09-09 | 清华大学 | 移动多媒体广播发送与接收的方法和装置 |
CN101958784B (zh) * | 2009-07-13 | 2013-08-14 | 重庆无线绿洲通信技术有限公司 | Tdd系统中的通信方法及装置 |
CN102064879B (zh) * | 2010-11-30 | 2014-05-07 | 大唐移动通信设备有限公司 | 一种时分双工通信的方法、系统和设备 |
CN102761966A (zh) * | 2011-03-25 | 2012-10-31 | 北京新岸线无线技术有限公司 | 一种调度方法、无线通信系统与设备 |
-
2011
- 2011-08-26 CN CN201110248178.4A patent/CN102263729B/zh active Active
- 2011-11-24 WO PCT/CN2011/082880 patent/WO2012151946A1/zh active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1452326A (zh) * | 2002-04-15 | 2003-10-29 | 华为技术有限公司 | 无线局域网系统的移动终端接入和同步方法 |
CN1838577A (zh) * | 2005-03-25 | 2006-09-27 | 中国科学技术大学 | 一种移动通信中的帧分多址方法 |
WO2008041804A1 (en) * | 2006-10-02 | 2008-04-10 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting/receiving downlink synchronization channels in a cellular communication system supporting scalable bandwidth |
Also Published As
Publication number | Publication date |
---|---|
CN102263729B (zh) | 2017-10-03 |
CN102263729A (zh) | 2011-11-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10548156B2 (en) | Resource indication processing method and processing apparatus, access point, and station | |
KR101721031B1 (ko) | 3gpp-lte 시스템에서 스몰 데이터 송신을 위한 장치 및 방법 | |
US11917581B2 (en) | Method and device in UE and base station used for paging | |
WO2015163601A1 (en) | Method for processing received rlc pdus for d2d communication system and device therefor | |
CN102761911B (zh) | 解调参考信号的发送方法及装置、接收方法及装置 | |
WO2015163624A1 (en) | Method for releasing a sidelink radio bearer for d2d communication system and device therefor | |
WO2012151946A1 (zh) | 一种数据发送方法和系统 | |
WO2013159437A1 (zh) | 一种同步信号的发送方法及装置 | |
CN111510253A (zh) | 无线局域网中的信令的发送、接收方法及装置 | |
KR20090057390A (ko) | Wimax 시스템들에서 멀티캐스트 및 브로드캐스트 프레임 부분들의 동기화를 위한 방법, 서버 및 기지국 | |
KR101991527B1 (ko) | 모바일 통신 시스템, 인프라구조 장비, 기지국 및 방법 | |
WO2012151948A1 (zh) | 无线通信系统中数据的发送方法和装置 | |
WO2014117732A1 (zh) | 一种获取基站下行反馈信息的方法及相关设备 | |
CN118283029A (zh) | 文件递送故障反馈和应用反馈 | |
WO2015109773A1 (zh) | D2d通信同步信道的传输方法及系统、发送端及接收端 | |
WO2022155772A1 (zh) | 资源抢占处理方法、通信设备及可读存储介质 | |
CN108810991A (zh) | 子载波间隔类型的确定方法、装置 | |
WO2012155680A1 (zh) | 一种通信系统中转换间隔的配置方法及装置 | |
WO2012155489A1 (zh) | 一种广播信息区域的传输、接收方法、装置及终端 | |
WO2012003671A1 (zh) | 同步前导码发送方法、同步方法、装置及系统 | |
WO2022155774A1 (zh) | 资源抢占处理方法、通信设备及可读存储介质 | |
CA2985667C (en) | Data transmission method, and apparatus | |
WO2014000165A1 (zh) | 信息传输方法、网络节点、用户设备及系统 | |
WO2022155773A1 (zh) | 资源抢占处理方法、通信设备及可读存储介质 | |
JP2012019345A (ja) | 無線通信システム |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11865045 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 11865045 Country of ref document: EP Kind code of ref document: A1 |