CN105141695A - Terahertz wireless local area network protocol architecture - Google Patents
Terahertz wireless local area network protocol architecture Download PDFInfo
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- CN105141695A CN105141695A CN201510588377.8A CN201510588377A CN105141695A CN 105141695 A CN105141695 A CN 105141695A CN 201510588377 A CN201510588377 A CN 201510588377A CN 105141695 A CN105141695 A CN 105141695A
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- terahertz
- area network
- local area
- wireless local
- mac layer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/323—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the physical layer [OSI layer 1]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a terahertz wireless local area network protocol architecture. The terahertz wireless local area network protocol architecture includes a physical layer and a data link layer, wherein the physical layer comprises a terahertz PHY, and the data link layer comprises bipolar MAC sub layers, wherein the bipolar MAC sub layers include an independent lower MAC layer and a public upper MAC layer, wherein the independent lower MAC layer is a terahertz lower MAC layer. According to the protocol architecture, terahertz is utilized to perform high-speed data transmission, and therefore, the ultra-high speed characteristic of a terahertz wireless local area network can be ensured, and the terahertz wireless local area network can realize high-speed communication ability in large coverage; and a solution can be provided for the contradiction between narrow beams of high-speed terahertz communication and wire coverage required by the local area network.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of Terahertz protocol of wireless local area network framework.
Background technology
THz wave is the electromagnetic wave of frequency within the scope of 0.1 ~ 10THz.Owing to lacking the method that effective THz wave produces and detects, Terahertz Technology is in space state always for a long time, becomes the last frequency range needing exploitation in electromagnetic spectrum.THz wave technology is at safety guard, and chemical, biological, medical diagnosis, there is extraordinary application prospect the aspects such as astrophysics.
The WiFi local area network (LAN) of the 2.4GHz/5GHz frequency range of current extensive use, its antenna all have employed nearly omnidirectional antenna to ensure larger cyberspace coverage.But the loss of electromagnetic wave at free space and square positive correlation of frequency, namely carrier frequency often improves a magnitude, and electromagnetic free-space loss is by raising 20 decibels, and the received signal to noise ratio of communication system is by reduction by 20 decibels.Therefore in Terahertz frequency range, the 2.4GHz/5GHz adopted due to the existing WiFi of communication carrier frequency ratio improves more than nearly two magnitudes, the received signal to noise ratio of communication system will reduce nearly more than 40 decibels, in order to reach the received signal to noise ratio identical with original communication system, just require that when transmitting power is constant dual-mode antenna gain improves nearly more than 40 decibels.And the antenna beamwidth of 10 decibel gains is approximately 45 degree, and the antenna beamwidth of 35 decibel gains just only only has 2.6 degree, reduces a more than magnitude.Therefore, the WLAN (wireless local area network) built in Terahertz frequency range is due to the improve of ripple carrier frequency rate, and antenna beamwidth will greatly narrow, and coverage will sharply reduce, but existing WiFi network structure cannot realize effective large regions coverage.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of Terahertz protocol of wireless local area network framework is provided, this protocol infrastructure utilizes Terahertz to carry out high speed data transfer, ensure the ultrahigh speed characteristic of Terahertz local area network (LAN), make Terahertz WLAN (wireless local area network) have compared with the ability providing high-speed communication in large coverage, the contradiction of the wide coverage that narrow beam and local area network (LAN) for the communication of high speed Terahertz require provides a kind of solution route.
The object of the invention is to be achieved through the following technical solutions: a kind of Terahertz protocol of wireless local area network framework, it comprises physical layer and data link layer, described physical layer comprises Terahertz PHY, data link layer comprises the two poles of the earth media access control sublayer, and the two poles of the earth media access control sublayer is independent lower MAC layer and public upper MAC layer; Under described independence, MAC layer is MAC layer under Terahertz.
Described public upper MAC layer is used for the distribution of data, and Terahertz WLAN (wireless local area network) sends a large amount of high-speed data.
Under described Terahertz, MAC layer and Terahertz PHY layer provide the superelevation speed data transmit-receive function under Terahertz pattern.
The detailed process that under this protocol infrastructure, user access control and terahertz wave beam are aimed at comprises: utilize the WiFi standard containing omnidirectional antenna to transmit access request and terahertz wave beam scan request at access phase; At wave beam alignment stage, receiving-transmitting sides first utilizes the technology in WiFi to carry out the rough estimate of both sides position, and the positional information utilizing rough estimate to obtain guides THz wave beam control system to carry out the coarse alignment of terahertz wave beam; Receiving-transmitting sides carries out the accurate aligning of terahertz wave beam again by cooperation iterative scans mode; The Terahertz link set up carries out the transfer of data of ultrahigh speed rate.
The invention has the beneficial effects as follows: the invention provides a kind of Terahertz protocol of wireless local area network framework, this protocol infrastructure utilizes Terahertz to carry out high speed data transfer, ensure the ultrahigh speed characteristic of Terahertz local area network (LAN), make Terahertz WLAN (wireless local area network) have compared with the ability providing high-speed communication in large coverage, the contradiction of the wide coverage that narrow beam and local area network (LAN) for the communication of high speed Terahertz require provides a kind of solution route.
Accompanying drawing explanation
Fig. 1 is; The schematic diagram of Terahertz protocol of wireless local area network framework.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, a kind of Terahertz protocol of wireless local area network framework, it comprises physical layer and data link layer, and described physical layer comprises Terahertz PHY, and data link layer comprises the two poles of the earth media access control sublayer, and the two poles of the earth media access control sublayer is independent lower MAC layer and public upper MAC layer; Under described independence, MAC layer is MAC layer under Terahertz.
Described public upper MAC layer is used for the distribution of data, and Terahertz WLAN (wireless local area network) sends a large amount of high-speed data.
Under described Terahertz, MAC layer and Terahertz PHY layer provide the superelevation speed data transmit-receive function under Terahertz pattern.
The detailed process that under this protocol infrastructure, user access control and terahertz wave beam are aimed at comprises: utilize the WiFi standard containing omnidirectional antenna to transmit access request and terahertz wave beam scan request at access phase; At wave beam alignment stage, receiving-transmitting sides first utilizes the technology in WiFi to carry out the rough estimate of both sides position, and the positional information utilizing rough estimate to obtain guides THz wave beam control system to carry out the coarse alignment of terahertz wave beam; Receiving-transmitting sides carries out the accurate aligning of terahertz wave beam again by cooperation iterative scans mode; The Terahertz link set up carries out the transfer of data of ultrahigh speed rate.
Claims (4)
1. a Terahertz protocol of wireless local area network framework, is characterized in that: it comprises physical layer and data link layer, and described physical layer comprises Terahertz PHY, and data link layer comprises the two poles of the earth media access control sublayer, and the two poles of the earth media access control sublayer is independent lower MAC layer and public upper MAC layer; Under described independence, MAC layer is MAC layer under Terahertz.
2. a kind of Terahertz protocol of wireless local area network framework according to claim 1, is characterized in that: described public upper MAC layer is used for the distribution of data, and Terahertz WLAN (wireless local area network) sends a large amount of high-speed data.
3. a kind of Terahertz protocol of wireless local area network framework according to claim 1, is characterized in that: under described Terahertz, MAC layer and Terahertz PHY layer provide the superelevation speed data transmit-receive function under Terahertz pattern.
4. a kind of Terahertz protocol of wireless local area network framework according to claim 1, is characterized in that: the detailed process that under this protocol infrastructure, user access control and terahertz wave beam are aimed at comprises: utilize the WiFi standard containing omnidirectional antenna to transmit access request and terahertz wave beam scan request at access phase; At wave beam alignment stage, receiving-transmitting sides first utilizes the technology in WiFi to carry out the rough estimate of both sides position, and the positional information utilizing rough estimate to obtain guides THz wave beam control system to carry out the coarse alignment of terahertz wave beam; Receiving-transmitting sides carries out the accurate aligning of terahertz wave beam again by cooperation iterative scans mode; The Terahertz link set up carries out the transfer of data of ultrahigh speed rate.
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| CN201510588377.8A CN105141695A (en) | 2015-09-16 | 2015-09-16 | Terahertz wireless local area network protocol architecture |
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| CN201510588377.8A CN105141695A (en) | 2015-09-16 | 2015-09-16 | Terahertz wireless local area network protocol architecture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109845225A (en) * | 2016-10-11 | 2019-06-04 | 高通股份有限公司 | Medium access control header and transport block format |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104684026A (en) * | 2015-03-13 | 2015-06-03 | 中国工程物理研究院电子工程研究所 | Data distribution and access mechanism suitable for terahertz double-frequency networks |
| CN104796919A (en) * | 2015-03-13 | 2015-07-22 | 中国工程物理研究院电子工程研究所 | Dual-frequency combined terahertz wireless local area network protocol architecture |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104684026A (en) * | 2015-03-13 | 2015-06-03 | 中国工程物理研究院电子工程研究所 | Data distribution and access mechanism suitable for terahertz double-frequency networks |
| CN104796919A (en) * | 2015-03-13 | 2015-07-22 | 中国工程物理研究院电子工程研究所 | Dual-frequency combined terahertz wireless local area network protocol architecture |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109845225A (en) * | 2016-10-11 | 2019-06-04 | 高通股份有限公司 | Medium access control header and transport block format |
| CN109845225B (en) * | 2016-10-11 | 2021-09-21 | 高通股份有限公司 | Medium access control header and transport block format |
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