CN101938857B - Base station and method for implementing baseband frequency hopping - Google Patents

Base station and method for implementing baseband frequency hopping Download PDF

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CN101938857B
CN101938857B CN 200910150763 CN200910150763A CN101938857B CN 101938857 B CN101938857 B CN 101938857B CN 200910150763 CN200910150763 CN 200910150763 CN 200910150763 A CN200910150763 A CN 200910150763A CN 101938857 B CN101938857 B CN 101938857B
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data
module
base station
bus
frequency
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CN101938857A (en
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高飞
钟学毅
张丽
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中兴通讯股份有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/713Spread spectrum techniques using frequency hopping
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices

Abstract

本发明提供了一种实现基带跳频的基站及方法,基站的基带处理模块,用于使用串行的多点到多点的数据总线进行基带数据交换。 The present invention provides a base station and a method for implementing a baseband frequency hopping, the baseband processing module of the base station, used for multipoint to multipoint serial data bus baseband data exchange. 基站的信源信道编码模块计算待发送的数据包对应的频点号,根据此频点号确定数据总线子时隙,并在此子时隙上将所述数据包发送至串行的多点到多点的数据总线;与所述频点号对应的调制模块在与此调制模块对应的数据总线子时隙上从所述数据总线接收数据包,并进行调制后发送。 Source channel coding module calculates the base station packet data to be transmitted corresponding to the frequency number of the data bus sub-slots is determined pursuant to this frequency, and transmits to the multi-point serial In this sub-slots on said data packet to multipoint data bus; and transmitting the number corresponding to the frequency modulation module receives the data packet from the bus data on the data bus sub-slot corresponding to this modulation module, and modulated. 本发明的方法,通过改变基带数据交换节点以减少基带跳频交换的数据量,提高基带跳频数据交换速度,可以支持更多载频同时进行基带跳频。 The method of the present invention, by changing the baseband data to reduce the amount of data switching node baseband switching frequency hopping, the base band hopping improve the speed of data exchange, can support more carrier frequencies simultaneously baseband frequency hopping. 并且硬件实现电路简单,减少基带跳频总线硬件复杂度,减少了系统的复杂度,同时适用于宽带基站与窄带基站。 And the hardware circuit is simple, reduces the baseband hopping bus hardware complexity, reduces the complexity of the system, while suitable for narrowband broadband base station.

Description

一种实现基带跳频的基站及方法技术领域[0001] 本发明涉及全球移动通讯系统(Global System For Mobi IeCommuni cat ion,简称GSM),尤其涉及实现基带跳频的基站及方法。 TECHNICAL FIELD The base stations and base band hopping realizing [0001] The present invention relates to a Global System for Mobile communication system (Global System For Mobi IeCommuni cat ion, referred to as GSM), and in particular relates to a method for a base station the baseband frequency hopping. 背景技术[0002] GSM规范05. 02中说明,为了确保通信的秘密性、提高系统抗衰落和抗干扰的性能,要求基站系统支持跳频技术,并规范了系统的跳频算法。 BACKGROUND [0002] GSM specification 05.02 is described, in order to ensure the secrecy of communication, anti-fading and interference to improve system performance, the system requires the base station to support frequency hopping, the frequency hopping algorithm and system specifications. 所谓跳频技术,就是有规则的更改信道的收发频率,跳频功能主要体现在以下三个方面:(I)改善衰落。 The so-called frequency hopping, that is, a regular channel transceiver changes frequency hopping functions mainly in the following three aspects: (I) improved fading. (2)处于多径环境中的漫速移动的移动台通过采用跳频技术,大大改善移动台的通信质量,相当于频率分集。 (2) the mobile station in a multipath environment diffuse speed movement through the use of frequency hopping, improve the communication quality of the mobile station corresponding to frequency diversity. (3)跳频相当于频率分集。 (3) corresponds to the hopping frequency diversity. [0003] GSM系统中的跳频技术具体分为两种:基带跳频和射频跳频。 [0003] The frequency hopping in the GSM system is divided into two specific: a radio frequency hopping and base band hopping. 基带跳频的原理是将话音信号随着时间的变化使用不同频率发射机发射。 Baseband frequency hopping principle is the voice signal over time using different frequencies transmitted by the transmitter. 射频跳频是将话音信号用固定的发射机,由跳频序列控制,采用不同的频率发射。 RF frequency hopping is fixed with the voice signal transmitter, a hopping sequence controlled by using different emission frequencies. 相比之下,射频跳频比基带跳频具有更高的性能改善和抗同频干扰的能力,但是缺点在于射频跳频必须使用HIBRID合路器,相比空腔合路器要损耗3dB左右,影响基站覆盖范围,所以绝大多数基站厂商都要求产品具备基带跳频功能。 In contrast, the radio frequency hopping with frequency hopping than the base having a higher capacity and improved performance with anti-frequency interference, but the disadvantage is that radio frequency hopping must HIBRID combiners, combiners compared to the cavity loss of about 3dB Effects coverage of the base station, the base station so that the vast majority of manufacturers require products with baseband frequency hopping. [0004] 如图1所示,是目前通用的GSM窄带基站基带跳频架构,包括基带处理模块(101-1〜101-N)、数据总线(102)、射频模块(103-1〜103-N)、分路合路器(104)、天线(105)。 [0004] As shown in FIG 1, is universal GSM with frequency hopping narrowband base station architectures, including baseband processing module (101-1~101-N), a data bus (102), a radio frequency module (103-1~103- N), splitter combiner (104), an antenna (105). 通常一个基带处理模块和一个射频模块对应一个载波。 Typically a baseband processing module and RF module corresponding to a carrier. 为了实现基带数据的交换, 通常在硬件设计中,在基带处理模块和射频模块中间提供一条数据总线102。 In order to achieve exchange baseband data, typically in the hardware design is provided in the middle of a data bus 102 and a baseband processing module RF module. 通常的总线传输协议如RS-485、RS-232 或者B-LVDS。 Normal bus transfer protocol as RS-485, RS-232 or B-LVDS. [0005] 系统在进行基带跳频操作时,射频模块(103-1〜103-N)的锁相环(PLL)不会改变其参数配置,发射接收频率不变;但是数据总线102在每个时隙都改变配置,使基带处理模块(101-1〜101-N)在不同的时隙对应不同的射频收发模块(103-1〜103-N),使每个基带处理数据交换到对应的固定频率上,从而实现通信信道规律的改变收发频率,完成基带跳频。 [0005] system with frequency hopping operation, phase locked loop (PLL) RF module (103-1~103-N) does not change during its group parameters, transmitting and receiving the same frequency; however, the data bus 102 in each time slot configuration changes, so that the baseband processing module (101-1~101-N) correspond to different RF transceiver module (103-1~103-N) in different time slots, each corresponding to a baseband data exchange a fixed frequency, so as to achieve regular channel changing frequency transceiver communication channel, baseband frequency hopping. [0006] 目前通用的宽带基站中流行的架构为基于软件无线电(Software DefinedRadio, 简称SDR)软基站,如图2所示,基带跳频架构包括基带处理模块(201-1〜201-N)、数据总线(202)、上下数字变频器(203-1〜203-N)、分路合路器(204)、数模转换模块(205)、射频收发模块(206)、天线(207)。 [0006] It is common in popular broadband base station architecture based on software radio SDR (Software DefinedRadio, referred to as the SDR), shown in Figure 2, baseband hopping architecture includes a baseband processing module (201-1~201-N) a data bus (202), a digital down converter (203-1~203-N), splitter combiner (204), converter module (205), RF transceiver module (206), an antenna (207). 载波数据在经由基带处理模块处理后,通过双向数据总线(202)送入上下数字变频器(203-1〜203-N)。 After the data carrier via the baseband processing module, into a digital down converter (203-1~203-N) via a bidirectional data bus (202). 各个上下变频器(203-1〜203-N)与分路合器204双向连接,即所有的基带处理模块(201-1〜201-N)通过数据总线与分路合路器(204)连接起来。 Each down converter (203-1~203-N) and the splitter clutch 204 bidirectional connection, i.e. all the baseband processing module (201-1~201-N) via a data bus splitter combiner (204) stand up. 通常的总线传输协议如RS-485、RS-232或者B-LVDS。 Normal bus transfer protocol as RS-485, RS-232 or B-LVDS. [0007] 该系统中,基带跳频模式下,上下数字变频器(203-1〜203-N)的配置数据在工作过程中不再更改,保持上下数字变频器(203-1〜203-N)到射频收发模块(206)输出的频率不变;GSM系统是时分系统,即在基带跳频模式下,保持每个载频的上下数字变频器(203-1〜203-N)对应数据总线(202)上的时隙关系不变;而各个载频的基带处理模块依据跳频算法计算,发送或者接收的基带数据对应的上下数字变频器(203-1〜203-N),最后通过运算得到对应数据总线(202)的时隙,通过数据总线(202)交换发送接收数据,从而实现每个基带处理模块(201-1〜201-N)的基带数据交换,最终实现每个基带处理模块(201-1〜201-N)信道发送频率规律的变化。 [0007] The system, baseband hopping mode, a digital down converter (203-1~203-N) of the configuration data is no longer changed during operation, the upper and lower holding digital converter (203-1~203-N ) to change the frequency of RF transceiver module (206) output; the GSM system is a time division system, i.e. in the baseband frequency hopping pattern, each holding the upper and lower carrier frequency digital converter (203-1~203-N) corresponding to a data bus relationship slot (202) constant; and a baseband processing module according to a frequency hopping algorithm calculates each carrier frequency, transmission or reception of data corresponding to the baseband digital down converter (203-1~203-N), and finally by computing to give the corresponding data bus (202) time slots, transmits and receives data exchanged via the data bus (202), enabling each baseband processing module (201-1~201-N) baseband data exchange, and ultimately each baseband processing module (201-1~201-N) channel transmission frequency variation law. [0008] 目前通用基站系统中基带跳频方法存在着如下缺陷:[0009] 窄带基站中,基带跳频交换总线通常是个交换模块,硬件复杂高,改良后的结构大多是以数据总线(102)形式出现,但是数据量大,通过背板传输的数据总线(102)复杂,传输数据量低。 [0008] The present general base station system baseband frequency hopping method there are the following defects: [0009] the narrowband base stations, the base band hopping switching bus typically switching modules, hardware complexity is high, the structure of the improved mostly based on the data bus (102) form, but the data volume, complexity, low backplane transmission through the data bus (102) transmission data amount. 宽带基站中,基带跳频数据总线(202)需处理的数据量大,处理速度低。 Broadband base station, the data baseband hopping data bus (202) to be treated is large, the processing speed is low. 发明内容[0010] 本发明要解决的技术问题是提供一种实现基带跳频的基站及方法,提高基带跳频数据交换速度,并在窄带基站和宽带基站中通用。 SUMMARY OF THE INVENTION [0010] The present invention is to solve the technical problem of providing a base station and a method for the realization of baseband frequency hopping, hopping improve the speed of data exchange with the base, and the base station narrowband and wideband common base station. [0011] 为了解决上述问题,本发明提供了一种实现基带跳频的基站,包括基带处理模块, 所述基带处理模块,用于使用串行的多点到多点的数据总线进行基带数据交换。 [0011] In order to solve the above problems, the present invention provides a base station for the baseband frequency hopping, comprising a baseband processing module, the baseband processing module, used for multipoint to multipoint serial data bus baseband data exchange . [0012] 进一步地,上述基站还具有以下特点:[0013] 所述基带处理模块包括相同数量的信源信道编码模块和调制模块,所述信源信道编码模块与所述调制模块通过所述数据总线相连;所述信源信道编码模块,用于计算待发送的数据包对应的频点号,根据此频点号确定数据总线子时隙,并在此子时隙上将所述数据包发送至所述数据总线;与所述频点号对应的调制模块,用于在与此调制模块对应的数据总线子时隙上从所述数据总线接收数据包,并进行调制后发送。 [0012] Further, the base station also has the following characteristics: [0013] The baseband processing module include the same number of source-channel coding module and a modulating module, the source module and the channel coding modulation module through the data coupled to the bus; said source channel coding block, a data packet corresponding to the calculated frequency number to be transmitted, the data bus sub-slots is determined pursuant to this frequency, and this sub-slot on the data packet in to the data bus; the number corresponding to the frequency modulation module, said data bus for receiving a data packet from a sub-slot on the data bus and the module corresponding to this modulation, modulated and transmitted. [0014] 进一步地,上述基站还具有以下特点:[0015] 所述基站为窄带基站时,还包括与所述调制模块直接相连的射频模块;所述调制模块,用于在与此调制模块对应的数据总线子时隙上从所述数据总线接收数据包并进行调制后发送至与此调制模块直接相连的射频模块。 [0014] Further, the base station also has the following characteristics: [0015] when the base station narrowband base stations, further comprising a radio frequency module and the modulator module is directly connected; said modulation means for modulation in correspondence with this module sub-slots on the data bus from the data bus and receives the data packets sent to the modulated RF modulation module this module is directly connected. [0016] 进一步地,上述基站还具有以下特点:[0017] 所述基站为宽带基站时,还包括与所述调制模块直接相连的上下数据变频器;所述调制模块,用于在此调制模块对应的数据总线子时隙上接收数据并进行调制后发送至与此调制模块直接相连的上下数据变频器。 [0016] Further, the base station also have the following feature: when [0017] said broadband base station, further comprising a vertical drive the data modulation module is directly connected; said modulating means for modulating this module receiving data on the data bus corresponding to the upper and lower sub-slots and data modulation module with this inverter is directly connected to the transmission modulated. [0018] 进一步地,上述基站还具有以下特点:[0019] 所述信源信道编码模块和所述调制模块的个数均为基站中应用的频点的个数;频点号、数据总线子时隙和调制模块是一一对应的关系。 [0018] Further, the base station also has the following characteristics: [0019] The number of source-channel coding modulation module and the module number of frequencies are applied in a base station; frequency point number, the sub-data bus and modulation module slots are one to one relationship. [0020] 进一步地,上述基站还具有以下特点:[0021] 所述数据总线为低电压差分信号总线、电流模式逻辑总线或者低电压正射极耦合逻辑总线。 [0020] Further, the base station also has the following characteristics: [0021] The data bus is a low voltage differential signal bus, a bus or a current mode logic low voltage positive emitter coupled logic bus. [0022] 为了解决上述技术问题,本发明还提供了一种上述的基站实现基带跳频的方法, 包括:基站的信源信道编码模块计算待发送的数据包对应的频点号,根据此频点号确定数据总线子时隙,并在此子时隙上将所述数据包发送至串行的多点到多点的数据总线;与所述频点号对应的调制模块在与此调制模块对应的数据总线子时隙上从所述数据总线接收数据包,并进行调制后发送。 [0022] To solve the above problems, the present invention also provides a method of the above-described base station the baseband frequency hopping, comprising: a source-channel coding module base data packet corresponding to frequency point number calculated to be transmitted, based on this frequency node number that the data bus sub-slots, and transmitted to the multipoint to multipoint serial data bus on this sub-time slot of the data packet; and the modulated frequency number corresponding to this modulation module modules sub-slot on the data bus from the data bus corresponding to the received packet, and transmitted after modulation. [0023] 进一步地,上述方法还具有以下特点:[0024] 所述基站为窄带基站时,所述调制模块在与此调制模块对应的数据总线子时隙上从所述数据总线接收数据包并进行调制后发送至与此调制模块直接相连的射频模块。 [0023] Furthermore, the above method also has the following characteristics: [0024] when the base station narrowband base stations, the modulation module receives the data packet from the data bus to the data bus sub-slot corresponding to this modulation module and after modulation to the RF transmission module and modulation module directly connected to this. [0025] 进一步地,上述方法还具有以下特点:[0026] 所述基站为宽带基站时,所述调制模块在此调制模块对应的数据总线子时隙上接收数据并进行调制后发送至与此调制模块直接相连的上下数据变频器。 [0025] Furthermore, the above method also has the following characteristics: when [0026] said broadband base station, the modulation module receives the data on the data bus sub-slot corresponding to this modulation module modulated and transmitted to the other upper and lower data modulation module directly connected to the inverter. [0027] 进一步地,上述方法还具有以下特点:[0028] 所述信源信道编码模块和所述调制模块的个数均为基站中应用的频点的个数;频点号、数据总线子时隙和调制模块是一一对应的关系。 [0027] Furthermore, the above method also has the following characteristics: [0028] The number of source-channel coding modulation module and the module number of frequencies are applied in a base station; frequency point number, the sub-data bus and modulation module slots are one to one relationship. [0029] 本发明的方法,通过改变基带数据交换节点以减少基带跳频交换的数据量,提高基带跳频数据交换速度,可以支持更多载频同时进行基带跳频。 [0029] The method of the present invention, by changing the baseband data to reduce the amount of data switching node baseband switching frequency hopping, the base band hopping improve the speed of data exchange, can support more carrier frequencies simultaneously baseband frequency hopping. 此外通过改变数据总线硬件结构,使硬件实现电路简单,减少基带跳频总线硬件复杂度,减少了系统的复杂度。 Further by changing the hardware configuration of the data bus, so that a hardware implementation is simple, reducing the frequency hopping baseband bus hardware complexity, it reduces the complexity of the system. 本发明的方法还同时适用于宽带基站与窄带基站。 The method of the present invention is also suitable for both narrowband and broadband base station. 附图说明[0030] 图1是现有技术中实现基带跳频的窄带基站的结构组成图;[0031] 图2是现有技术中实现基带跳频的宽带基站的结构组成图;[0032] 图3是高速串行总线拓扑结构图; [0033] 图4是GSM系统的数据处理框图;[0034] 图5是实施例中实现基带跳频的窄带基站的结构组成图;[0035] 图6是实施例中实现基带跳频的宽带基站的结构组成图。 BRIEF DESCRIPTION [0030] FIG. 1 is a configuration diagram of a prior art composition of the baseband hopping narrowband base stations; [0031] FIG. 2 is a configuration view of a prior art composition of the baseband frequency hopping broadband base station; [0032] FIG. 3 is a high-speed serial bus topology; [0033] FIG. 4 is a block diagram of a data processing system of the GSM; [0034] FIG. 5 is a schematic diagram showing the structure of a base station narrowband embodiment of the baseband frequency hopping; [0035] FIG. 6 is a block composition diagram of the broadband base station according to the baseband frequency hopping embodiment. 具体实施方式[0036] 本实施例中使用闻速串彳丁总线实现GSM基带跳频的功能,基站中的基带处理I旲块使用串行的多点到多点的数据总线进行基带数据交换。 DETAILED DESCRIPTION [0036] This example uses the smell left foot butoxy speed serial bus with frequency hopping in GSM base functions embodiment, the base station baseband I of multipoint to multipoint serial data bus Dae block baseband data exchange. [0037] 如图3所示,每个串行总线收发机301-1〜301-N都是总线上的一个节点,串行总线收发机301-1〜301-N可以实现双工也可以实现半双工,通过系统配置就可以完成。 [0037] As shown, each node on a serial bus transceiver 301-1~301-N are bus, a serial bus transceiver 3 301-1~301-N may be implemented duplex can be achieved Half-duplex, the system configuration can be completed. 任何总线上的节点即每个串行总线收发机301-1〜301-N可以接收任意一个总线上节点301-1〜301-N下发的数据;同时,总线上的任一节点301-1〜301-N均可以在总线上任一节点301-1〜301-N发送数据。 I.e., any node on the bus each of the serial bus transceiver 301-1~301-N node may receive any one of the hair 301-1~301-N data bus; the same time, any node on the bus 301-1 ~301-N can be appointed 301-1~301-N transmit data at a bus node. 传统来说的基带跳频方案仅仅是硬件电路一般都是十几或者几十条传输线,但是高速串行总线实现基带跳频只需要四条甚至更少。 Baseband frequency hopping scheme is merely a conventional hardware circuits usually dozens or several tens of transmission lines, but to achieve high-speed serial bus baseband hopping only four or less. 因此本发明有硬件电路简单,总线抗干扰性强等优点。 Thus, the present invention has a simple hardware circuit, bus and strong anti-interference advantages. 本发明的串行高速总线首选了多点低电压差分信号(Low Voltage Differential Signaling,简称M-LVDS)总线此外可以选择电流模式逻辑(Current Mode Logic,简称CML)总线和低电压正射极耦合逻辑(LVPECL)等高速总线, 高速总线选择均在本发明保护的范围之内。 Serial high-speed bus of the present invention, the preferred multi-point low voltage differential signal (Low Voltage Differential Signaling, referred to as M-LVDS) bus can select the current mode logic addition (Current Mode Logic, referred to as CML) bus and a low voltage positive emitter coupled logic (LVPECL) high-speed bus, a high speed bus selector are within the scope of the present invention. 如附图3所示是高速串行总线拓扑结构图,以M-LVDS总线为例的,其中301-1〜301-N可以选取M-LVDS芯片即M-LVDS信号收发机(GSM 窄带、宽带基站均相同),其中差分总线需要连接匹配电阻,如图3所示。 As shown in Figure 3 is a high-speed serial bus topology to an example of the M-LVDS bus, wherein 301-1~301-N can select M-LVDS chip i.e. M-LVDS signal transceiver (GSM narrowband, broadband the base station are the same), wherein the differential bus requires matching resistor is connected, as shown in FIG. [0038] 如图1图2所示的组成结构中,将其使用的数据总线替换为上述的串行的多点到多点数据总线后,也可以提高基带跳频数据交换速度。 [0038] The composition of the structure shown in Figure 2 in FIG. 1, which was used to replace the data bus after the above-described multi-multipoint serial data bus, baseband hopping can be improved speed of data exchange. [0039] 如图4所示,GSM系统进行数据处理的过程如下:数据401首先通过信源编码模块402处理后,到达信道编码模块403,最后通过调制模块404把基带数据调制到GMSK或者8PSK数据。 [0039] The process shown, GSM system in Figure 4 for data processing are as follows: data 401 firstly by the source encoding module 402 processing, reaches channel coding module 403, and finally by the modulation module 404 baseband data modulated to the GMSK or 8PSK data . 最终通过空中接口405即如附图4所示的信道发送到接收机部分。 That eventually transmitted to the receiver over the air interface 405 as part of the channel shown in the accompanying drawings. [0040]目前通用的基带跳频方法中,交换的数据集中在了如上附图4所示的调制模块404以后,即调制404与射频模块交互信息的阶段中,此阶段数据量是基带处理部分数据最多的,完成调制的基带数据基本上是信道编码以后还未进行调制的基带数据的14倍。 [0040] It is common baseband frequency hopping method, the exchange of the dataset modulation module 4 as shown in the drawings after 404, i.e., the modulation stage 404 and RF module interactive information, the amount of this phase data baseband processing section most data modulated baseband data is completed substantially after channel coding has not been performed 14 times the modulated baseband data. 因此本实施例中将基带跳频数据交换过程建立在信道编码模块403和调制模块404的中间过程。 Thus in the embodiment the base band frequency hopping data exchange in the middle of the process to establish a channel coding modulation module 404 and module 403 of the present embodiment. 具体的,将高速数据总线设计在调制模块之前,而不是在调制模块之后,即在硬件设计的时候将信源信道编码模块输出的数据发送到高速总线上进行交换(GSM窄带、宽带基站均相同),然后再进行调制操作,可以进一步提高基带跳频数据交换速度。 Transmitting Specifically, the high speed data bus design prior to modulation module, rather than after modulation module, i.e., when the hardware design of the source-channel coding module outputs data to exchange high-speed bus (GSM narrowband, broadband base station are the same ), then modulated operation, baseband hopping can further enhance the speed of data exchange. [0041] 具体实施例一:[0042] 具体实施例一中主要说明实现基带跳频的窄带基站及方法。 [0041] a specific embodiment: [0042] In a specific embodiment described embodiment primarily narrowband base stations and base band hopping method of implementation. [0043] 图5是根据本发明优化过的GSM窄带基站基带跳频架构,其中包括:N个载频,其中载频包括了基带部分和射频部分504-1〜504-N。 [0043] FIG. 5 is optimized in accordance with the present invention, the base station with frequency hopping narrowband GSM architecture, comprising: N carrier frequency, wherein the carrier comprises a radio frequency part and a baseband part 504-1~504-N. 而基带部分根据GSM通讯系统划分成信源信道编码模块501-1〜501-N和调制模块503-1〜503-N。 And the baseband section into a source-channel coding module and modulation module 501-1~501-N 503-1~503-N according to the GSM communication system. 信源信道编码模块501-1〜 501-N通过高速双向数据总线502和调制模块503-1〜503-N相连。 Source channel coding module 501-1~ 501-N are connected via high-speed bidirectional data bus 502 and the modulation module 503-1~503-N. 调制模块503-1〜 503-N与对应的射频模块504-1〜504-N相连。 Modulation module 503-1~ 503-N corresponding to the RF module 504-1~504-N are connected. 射频模块504-1〜504-N汇入分路合路器505接入发射天线506。 RF module 504-1~504-N import splitter combiner 506 505 transmitting antennas of access. [0044] 信源信道编码模块,用于计算待发送的数据包对应的频点号,根据此频点号确定数据总线子时隙,并在此子时隙上将所述数据包发送至所述数据总线; [0045] 与所述频点号对应的调制模块,用于在与此调制模块对应的数据总线子时隙上从所述数据总线接收数据包,并进行调制后发送至与此调制模块直接相连的射频模块。 [0044] source-channel coding block, a data packet corresponding to the calculated frequency number to be transmitted, the data bus sub-slots is determined pursuant to this frequency, and this sub-slot of the transmitted data packet on to the said data bus; [0045] number corresponding to the frequency modulation module, said data bus for receiving a data packet from a sub-slot on the data bus and the module corresponding to this modulation, modulated and transmitted to the other RF modulation module directly connected to the module. [0046] 方案的特点是数据交换总线设计的位置和支持的协议。 Features [0046] scheme is a protocol for exchanging data bus design and support position. 相比之下,假设有N个载波,目前GSM窄带基站基带跳频架构总线102上的数据为M1,优化后的GSM窄带基站基带跳频架构总线502上的数据为M2,其关系大约是Ml = 14*N*M2。 In contrast, it is assumed there are N carriers, the current data on the GSM base station with frequency hopping narrowband bus architecture 102 as M1, on the data bus 502 architecture hopping narrowband GSM base station baseband optimized as M2, which is about the relationship between Ml = 14 * N * M2. 优化后的GSM窄带基站基带跳频架构总线502选择了M-LVDS总线或者是CML总线或者LVPECL总线。 Optimized GSM with frequency hopping narrowband base station 502 selects the bus architecture M-LVDS bus or a bus or CML LVPECL bus. 总线502简单; 总线502速度时钟最大能支持IGHz以上。 Simple bus 502; the maximum clock speed bus 502 can support more than IGHz. 而目前通用的基带跳频总线102速度最大仅几MHz。 At present, a baseband hopping common bus 102 the maximum speed of only a few MHz. [0047] 实现GSM窄带基带跳频方法的具体步骤:[0048] (I)将高速双向数据总线时分复用,划分为多个数据总线子时隙。 [0047] Specific steps in GSM narrowband baseband hopping method: [0048] (I) the high-speed time division multiplexed bidirectional data bus, a data bus divided into a plurality of sub-slots. 每个频点对应固定的调制模块、射频模块和高速双向数据总线子时隙号。 Each point corresponds to a fixed-frequency modulation module, a radio frequency module and high-speed bidirectional data bus sub-slot number. 频点号、数据总线子时隙和调制模块是一一对应的关系。 Frequency point number, and the data bus sub-slot modulation module is one to one relationship. 在跳频过程中,每个信源信道编码模块的数据对应的频点都是变化的,需要在频点对应的高速双向数据总线子时隙将数据通过高速双向数据总线交换到对应的调制模块。 In frequency hopping, the frequency data corresponding to each source channel coding module is changed, the frequency corresponding to the required high-speed bidirectional data bus to a sub-slot corresponding to the modulation data exchange module through a high speed bidirectional data bus . [0049] (2)系统开始运行时,主控模块计算系统内所有的基带跳频载波个数和频点。 [0049] (2) When the system is running, all of the main control module calculates the number of baseband and carrier frequency hopping in the system. 根据跳频规律,将所有基带跳频的频点排序,并将每个射频模块对应的高速双向数据总线子时隙号下发给对应的调制模块。 The frequency hopping law, all the baseband frequency hopping sorted and sent to the corresponding high-speed modulation module bidirectional data bus sub-slot number corresponding to each radio frequency module. [0050] (3)每个信源信道编码模块在每次跳频开始的时候根据跳频规律,计算要发送数据包所对应的频点号,根据频点号确定所对应高速双向数据总线子时隙号。 [0050] (3) Each source-channel coding each block in accordance with the frequency hopping when the frequency hopping law begins to calculate the transmission frequency point number to the corresponding data packet, determining the frequency number of the high-speed bidirectional data bus according to correspondences slot number. 信源信道编码模块在频点对应的子时隙将数据包发送到总线。 Source-channel coding module corresponding to frequency sub-slot the packet is sent to the bus. 频点号所对应的调制模块在固定的子时隙接收总线上的数据,将交换后的数据进行调制,最后将调制后的数据发送给对应的射频模块。 Frequency number data corresponding to a fixed modulation module bus subslots received, the data exchange is modulated, and finally sends the modulated data to the corresponding RF module. [0051] 假设系统中共有N个频点参与基带跳频,分别为Fl、F2、F3〜FN,共有N个信源信道编码模块501-1〜501-N。 [0051] Suppose the system a total of N bins participation baseband frequency hopping, respectively Fl, F2, F3~FN, a total of the N-source channel coding module 501-1~501-N. N个频点所对应的射频模块分别为504-1〜504-N。 N bins corresponding RF modules are 504-1~504-N. N个射频模块对应的调制模块分别为503-1〜503-N。 N radio frequency modules respectively corresponding modulation module 503-1~503-N. N个调制模块对应的高速双向数据总线502子时隙号分别为502-1、502-2、502-3〜502-N。 N modulation module corresponds to a high-speed bi-directional data bus 502, respectively the sub-slot number 502-1,502-2,502-3~502-N. 以下行数据为例说明基带跳频的实现步骤。 The following line data as an example of the baseband frequency hopping implementation steps. 假设某一时隙,信源信道编码模块501-1数据对应的频点号是F2,那么,该信源信道编码模块501-1将在502-2子时隙将数据发送到高速双向数据总线502。 Suppose a time slot, the source channel coding module 501-1 corresponding to the data F2 of the frequency number is, then, the source-channel coding module 501-1 to 502-2 in the sub-slots to transmit data to the high speed bi-directional data bus 502 . 调制模块503-2 将在502-2子时隙从高速双向数据总线502接收数据,对接收后的数据进行调制,将调制后的数据发送给射频模块504-2,由此来实现基带跳频。 The modulation module 503-2 on the data received in the data bus 502-2 sub-slot 502 receives data from the high-speed bidirectional modulation, the modulated transmission data to the RF module 504-2, the baseband hopping thereby . [0052] GSM是TDMA系统,协议规定,一路载频支持8个信道,即8个时隙,假设系统中支持N个载频,高速串行总线502工作时分为8*N个总线502时隙,每个总线502时隙和系统的一个物理信道相对应。 [0052] GSM is a TDMA system, a predetermined protocol, all the way to the carrier frequency supports eight channels, i.e. eight time slots, N is assumed that the system supports carrier frequency, it is divided into 8 * N bus slot 502 when high-speed serial bus 502 work , a physical channel and a time slot for each system bus 502, respectively. [0053] 具体实施例二: [0054] 具体实施例二中主要说明实现基带跳频的窄带基站及方法。 [0053] DETAILED Example Two: [0054] Specific embodiments will be mainly described in Example II and the method of the narrowband base stations to achieve baseband frequency hopping. [0055] 图6是根据本发明优化过的GSM宽带基站基带跳频架构,其中包括:基带处理模块、数据总线602、上下数字变频器604-1〜604-N、合路分路器605、数模转换器606、射频收发模块607、天线608。 [0055] FIG. 6 is optimized broadband base station according to the present invention, baseband hopping GSM architecture, comprising: a baseband processing module, a data bus 602, a digital down converter 604-1~604-N, combiner splitter 605, DAC 606, RF transceiver module 607, an antenna 608. 其中根据GSM通讯系统基带处理模块划分成信源信道编码模块601-1〜601-N和调制模块603-1〜603-N。 Wherein the source channel is divided into modules 601-1~601-N coding and modulation module 603-1~603-N communication system according to the GSM baseband module. 信源信道编码模块601-1〜601-N与调制模块603-1〜603-N之间通过高速数据总线602相连接,每个调制模块分别对应一个上下数字变频器604-1〜604-N。 Source channel coding module and modulation module 601-1~601-N between 603-1~603-N are connected via high-speed data bus 602, each respectively corresponding to a modulation module digital down converter 604-1~604-N . 各个变频器同时与一合路分路器双向相连605。 Engagement with a respective inverter drives demultiplexer 605 coupled to bi-directional. 合路分路器605、数模转换器606、射频收发模块607顺序连接。 Combiner splitter 605, DAC 606, RF transceiver module 607 sequentially connected. 最后通过射频收发模块接入天线608。 Finally, access to antenna 608 via RF transceiver module. [0056] 信源信道编码模块,用于计算待发送的数据包对应的频点号,根据此频点号确定数据总线子时隙,并在此子时隙上将所述数据包发送至所述数据总线;[0057] 与所述频点号对应的调制模块,用于在与此调制模块对应的数据总线子时隙上从所述数据总线接收数据包,并进行调制后发送至与此调制模块直接相连的上下数据变频器。 [0056] source-channel coding block, a data packet corresponding to the calculated frequency number to be transmitted, the data bus sub-slots is determined pursuant to this frequency, and this sub-slot of the transmitted data packet on to the said data bus; [0057] number corresponding to the frequency modulation module, said data bus for receiving a data packet from a sub-slot on the data bus and the module corresponding to this modulation, modulated and transmitted to the other upper and lower data modulation module directly connected to the inverter. [0058] 方案的特点是数据交换总线设计的位置和支持的协议。 Features [0058] scheme is a protocol for exchanging data bus design and support position. 相比之下,假设有N个载波,目前GSM宽带基站基带跳频架构总线上的数据为Ml,优化后的GSM宽带基站基带跳频架构总线上的数据为M2,其关系大约是Ml = 14*N*M2。 In contrast, it is assumed there are N carriers, the current data on the GSM broadband base station baseband hopping of Ml bus architecture, the data on the optimized broadband base station baseband hopping GSM architecture bus M2, which is about the relationship between Ml = 14 * N * M2. 优化后的GSM宽带基站基带跳频架构总线选择了M-LVDS总线或者是CML总线或者LVPECL总线。 The optimized broadband base station GSM baseband hopping bus architecture selected M-LVDS bus or a bus or CML LVPECL bus. 总线简单;总线速度时钟最大能支持IGHz以上。 Bus simple; maximum clock speed of the bus can support IGHz above. 而目前通用的基带跳频总线速度最大仅几MHz。 The current general maximum speed baseband hopping bus only a few MHz. [0059] 实现GSM宽带基站基带跳频方法的具体步骤:[0060] (I)将高速双向数据总线时分复用,划分为多个子时隙。 [0059] Specific steps in GSM broadband base station baseband hopping method: [0060] (I) the high-speed time division multiplexed bidirectional data bus, is divided into a plurality of sub-slots. 每个频点对应固定的调制模块603-1〜603-N、上下数字变频器604-1〜604-N和高速双向数据总线602子时隙号。 Each point corresponds to a fixed-frequency modulation module 603-1~603-N, a digital down converter 604-1~604-N and high-speed bi-directional data bus 602 sub-slot number. 频点号、数据总线子时隙和调制模块是一一对应的关系。 Frequency point number, and the data bus sub-slot modulation module is one to one relationship. 在跳频过程中,每个信源信道编码模块601-1〜601-N的数据对应的频点都是变化的,需要在频点对应的高速双向数据总线602子时隙将数据通过高速双向数据总线602交换到对应的调制模块。 In frequency hopping, the data for each source-channel coding module 601-1~601-N corresponding to the frequency change is required in the frequency corresponding to the high-speed bidirectional data bus 602 via high-speed sub-time slot bidirectional data exchange data bus 602 to the corresponding modulating module. [0061] (2)系统开始运行时,系统计算出所有的基带跳频载波个数和频点。 [0061] (2) the system starts operation, the system calculates all the number of baseband and carrier frequency hopping. 根据跳频规律,将所有基带跳频的频点排序,并将每个上下数字变频器604-1〜604-N对应的高速双向数据总线602子时隙号下发给对应的调制模块603-1〜603-N。 The frequency hopping law, all the baseband frequency hopping sorted and sent to the corresponding modulation module 603- each digital down converter 604-1~604-N corresponding to the sub-high-speed bidirectional data bus 602 time slot number 1~603-N. [0062] (3)每个信源信道编码模块601-1〜601-N在每次跳频开始的时候根据跳频规律, 计算要发送数据包所对应的频点号,根据频点号确定所对应高速双向数据总线602子时隙号。 [0062] (3) Each source-channel coding module 601-1~601-N according to the frequency hopping law, to calculate the transmission frequency number corresponding to the data packet, determined pursuant to start frequency hopping in each time high-speed bidirectional data bus 602 corresponding to the sub-slot number. 信源信道编码模块601-1〜601-N在频点对应的子时隙将数据包发送到总线602。 Source channel coding module 601-1~601-N frequency sub-slot in the corresponding data packet to the bus 602. 频点号所对应的调制模块603-1〜603-N在固定的子时隙接收总线602上的数据,将交换后的数据进行调制,最后将调制后的数据发送给对应的上下数字变频器604-1〜604-N。 Frequency point number corresponding to the modulation module 603-1~603-N received data on the bus 602 in a fixed sub-slots, the modulation data exchange, and finally sends the modulated data to a corresponding digital down converter 604-1~604-N. [0063] 假设系统中共有N个频点参与基带跳频,分别为F1、F2、F3〜FN,共有N个信源信道编码模块601-1〜601-N。 [0063] Suppose the system a total of N bins participation baseband frequency hopping, respectively F1, F2, F3~FN, a total of the N-source channel coding module 601-1~601-N. N个频点所对应的上下数字变频器分别是604-1〜604-N。 N frequency points corresponding to the digital down converter are 604-1~604-N. N 上下数字变频器对应的调制模块分别为603-1〜603-N。 N digital down converter modules respectively corresponding modulation 603-1~603-N. N个调制模块对应的高速双向数据总线602子时隙号分别为602-1、602-2、602-3〜602-N。 N modulation module corresponds to a high-speed bidirectional data bus 602, respectively the sub-slot number 602-1,602-2,602-3~602-N. 以下行数据为例说明基带跳频的实现步骤。 The following line data as an example of the baseband frequency hopping implementation steps. 假设某一时隙,信源信道编码模块601-1数据对应的频点号是F2,那么,该信源信道编码模块601-1将在602-2子时隙将数据发送到高速双向数据总线602。 Suppose a time slot, the source channel coding module 601-1 corresponding to the data F2 of the frequency number is, then, the source-channel coding module 601-1 to 602-2 in the sub-slots to transmit data to the high speed bi-directional data bus 602 . 调制模块603-2将在602-2子时隙从高速双向数据总线602接收数据,对接收后的数据进行调制,将调制后的数据发送给上下数字变频器604-2,由此来实现基带跳频。 The modulation module 603-2 on the data received in the data bus 602-2 sub-slot 602 receives data from the high-speed bidirectional modulation, the modulated transmission data to the digital down converter 604-2, thereby the baseband hopping. [0064] GSM是TDMA系统,协议规定,一路载频支持8个信道,即8个时隙,假设系统中支持N个载频,高速串行总线602工作时分为8*N个总线602时隙,每个总线602时隙和系统的一个物理信道相对应。 [0064] GSM is a TDMA system, a predetermined protocol, all the way to the carrier frequency supports eight channels, i.e. eight time slots, N is assumed that the system supports carrier frequency, is divided into 8 * N bus 602 when the high-speed serial bus slots 602 work , a physical channel and a time slot for each system bus 602, respectively. [0065]当然,本发明还可有其他多种实施例,在不背离本发明精神及其实质的情况下,熟悉本领域的技术人员当可根据本发明做出各种相应的改变和变形,但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。 [0065] Of course, the present invention may have various other embodiments without departing from the spirit and the essence of the present invention, those skilled in the art can be made when various corresponding modifications and variations according to the present invention, these corresponding modifications and variations shall fall within the scope of the appended claims.

Claims (9)

1. 一种实现基带跳频的基站,包括基带处理模块,其特征在于,所述基带处理模块,用于使用串行的多点到多点的数据总线进行基带数据交换;所述基带处理模块包括相同数量的信源信道编码模块和调制模块,所述信源信道编码模块与所述调制模块通过所述数据总线相连;所述信源信道编码模块,用于计算待发送的数据包对应的频点号,根据此频点号确定数据总线子时隙,并在此子时隙上将所述数据包发送至所述数据总线;与所述频点号对应的调制模块,用于在与此调制模块对应的数据总线子时隙上从所述数据总线接收数据包,并进行调制后发送。 A base station implemented with frequency hopping, comprising a baseband processing module, wherein the baseband processing module, used for multipoint to multipoint serial data bus baseband data exchange; the baseband processing module include the same number of source-channel coding module and a modulating module, the source-channel coding modulation module and the module is connected via said data bus; the source channel coding block, a data packet to be transmitted corresponding to the calculated frequency number, a frequency number based on this point determines the data bus sub-slots, and transmitted to the data bus on this sub-time slot of the data packet; and the number corresponding to the frequency modulation module, configured with after transmitting the data from the bus receive data packets, and modulates the data bus sub-slot corresponding to this modulation module.
2.如权利要求1所述的基站,其特征在于,所述基站为窄带基站时,还包括与所述调制模块直接相连的射频模块;所述调制模块,用于在与此调制模块对应的数据总线子时隙上从所述数据总线接收数据包并进行调制后发送至与此调制模块直接相连的射频模块。 The base station according to claim 1, wherein said base station narrowband base station further includes a radio frequency module and the modulator module is directly connected; said modulation module, configured corresponding to this modulation module after receiving the data from the data bus and packets are modulated on the data bus sub-slots to the RF module and the transmission module is directly connected to this modulation.
3.如权利要求1所述的基站,其特征在于,所述基站为宽带基站时,还包括与所述调制模块直接相连的上下数据变频器;所述调制模块,用于在此调制模块对应的数据总线子时隙上接收数据并进行调制后发送至与此调制模块直接相连的上下数据变频器。 The base station as recited in claim 1, wherein said broadband base station is a base station, further comprising upper and lower data modulation module directly connected to the frequency converter; said modulating means for modulating the module corresponding to this receiving data on the data bus sub-slots and the other vertical drive data modulation module is directly connected to the transmission modulated.
4.如权利要求1、2或3所述的基站,其特征在于,所述信源信道编码模块和所述调制模块的个数均为基站中应用的频点的个数;频点号、数据总线子时隙和调制模块是一一对应的关系。 The base station of claim 2 or claim 3, wherein said source-channel coding modulation module and the module number of the number of frequency points are applied in a base station; frequency point number, and the data bus sub-slot modulation module is one to one relationship.
5.如权利要求1、2或3所述的基站,其特征在于,所述数据总线为低电压差分信号总线、电流模式逻辑总线或者低电压正射极耦合逻辑总线。 The base station of claim 2 or claim 3, wherein said data bus is a low voltage differential signal bus, a bus or a current mode logic low voltage positive emitter coupled logic bus.
6. 一种采用权利要求1所述的基站实现基带跳频的方法,包括:基站的信源信道编码模块计算待发送的数据包对应的频点号,根据此频点号确定数据总线子时隙,并在此子时隙上将所述数据包发送至串行的多点到多点的数据总线;与所述频点号对应的调制模块在与此调制模块对应的数据总线子时隙上从所述数据总线接收数据包,并进行调制后发送。 The base station of claim 1 to claim 6. A method of using a baseband implementation of frequency hopping, comprising: a source-channel coding module calculates the base station corresponding to the packet data to be transmitted frequency point number, the data bus is determined pursuant to this frequency midnight slot, and transmitted to the multipoint to multipoint serial data bus on this sub-time slot of the data packet; number corresponding to the frequency modulation module and modulation module corresponding to this data bus subslot receiving from the bus the data packet transmission and after modulation.
7.如权利要求6所述的方法,其特征在于,所述基站为窄带基站时,所述调制模块在与此调制模块对应的数据总线子时隙上从所述数据总线接收数据包并进行调制后发送至与此调制模块直接相连的射频模块。 7. The method according to claim 6, wherein said base station is a narrow band, the modulation module from the data bus and receives the data packets on the data bus sub-slot corresponding to this modulation module sending modulated to the RF modulation module this module is directly connected.
8.如权利要求6所述的方法,其特征在于,所述基站为宽带基站时,所述调制模块在此调制模块对应的数据总线子时隙上接收数据并进行调制后发送至与此调制模块直接相连的上下数据变频器。 8. The method according to claim 6, wherein said broadband base station is the base station, the modulation module receives the data on the data bus sub-slot corresponding to this modulation module and transmits this modulation to the modulated upper and lower data drive module directly connected.
9.如权利要求7或8所述的方法,其特征在于,所述信源信道编码模块和所述调制模块的个数均为基站中应用的频点的个数;频点号、数据总线子时隙和调制模块是一一对应的关系。 9. The method according to claim 78, wherein the number of the source module and the channel coding modulation module are the number of frequency points in a base station application; frequency number, a data bus subslot and modulation module is one to one relationship.
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