56 results about "Radio equipment controller" patented technology

A distributed radio base station (20) comprises a radio equipment controller (REC) (22) situated at a main site (23) and a radio equipment (RE) (24) situated at a remote site (25). A remote unit (102, 104, 106, 108, 110, 124) configured to engage in direct communications with the radio equipment controller (REC) is also situated at the remote site (25). An internal interface (26) connects the radio equipment controller (REC) and the radio equipment (RE). Advantageously, the internal interface (26) also encapsulates the direct communications between the radio equipment controller (REC) (22) and the remote unit, thereby obviating a separate physical link between the radio equipment controller (REC) and the remote unit. A new physical link (130) transmits, between the radio equipment (RE) and the remote unit, the direct communications between the radio equipment controller (REC) and the remote unit which are encapsulated over the internal interface (26). The remote unit can take various differing forms, including that of an antenna (102) with remote electrical tilt control; a tower mounted amplifier (TMA) (104); a Transmission network unit (106); a separate radio base station (108) which is co-located at the remote site; a proprietary equipment unit (110); or even one or more cascaded radio equipments (RE) (124).

A device for controlling one or more electrical apparatuses comprising a processor / transceiver control unit connected to each electrical apparatus and having at least one microprocessor wired to a transceiver and a clock circuit that keeps real-time onboard, the microprocessor storing an operating protocol according to which the control unit controls power to the electrical apparatus at real-time as kept by the clock circuit. The control unit's microprocessor may be further configured to read and store a nominal voltage for the electrical apparatuses and to compare the nominal voltage to the electrical apparatuses' operating voltage so as to monitor and report on their operation.

A system for troubleshooting signals in a cellular communications network, and in particular, for determining the cause of distortion or corruption of such signals, includes a robotic or other type of switch. The robotic switch can tap into selected uplink fiber-optic lines and selected downlink fiber-optic lines between radio equipment and radio equipment controllers in a wireless (e.g., cellular) network to extract therefrom the I and Q data. The selected I and Q data, in an optical form, is provided to an optical-to-electrical converter forming part of the system. The system includes an FPGA (Field Programmable Gate Array) or the like, and an analytic computer unit, or web server, and SSD (Solid State Drive) and magnetic disk storage, among other components of the system. The system analyzes the I and Q data provided to it, and determines the cause, or at least narrows the field of possible causes, of impairment to transmitted signals. The system includes a display which provides the troubleshooting information thereon for a user of the system to review, or other form of a report, and may communicate the analytical findings to a remote location over a public or private internet protocol network.

A radio base station (20) has an internal interface (26) connecting a radio equipment (RE) (24) and a radio equipment controller (REC) (22). The radio base station performs a pre-start-up procedure or method for the internal interface (26). The pre-start-up procedure is preformed preparatory to and / or in conjunction with a start-up procedure for the internal interface. As one of its aspects, the pre-start-up procedure involves storing one or more previously proven combinations of line bit rate and protocol as stored combination(s) for use on the internal interface. Prior to synchronization of the internal interface, the stored combination(s) are retrieved and included in a temporary available set of combinations of line bit rate and protocol. Thereafter the start-up procedure for the internal interface is initiated for the purpose of determining efficacy of the temporary available set. Should synchronization of the physical layer by the start-up procedure succeed, the pre-start-up procedure uses a valid combination of line bit rate and protocol in the available set for negotiating between the radio equipment controller (REC) and the radio equipment (RE). Should the start-up procedure fail, the pre-start-up procedure removes a failed combination of line bit rate and protocol from the set. In another of its aspects, the pre-start-up procedure classifies the temporary available set into plural subsets, each subset of the temporary available set containing combinations of line bit rate and protocol having a same line bit rate. The pre-start-up procedure separately initiates the start-up procedure for the internal interface for each subset. In another of its aspects, the pre-start-up procedure classifies the stored combinations as: (1) a best last time combination of line bit rate and protocol which was involved in a last successful execution of the start-up procedure; and (2) a union all combinations of line bit rate and protocol for which the synchronization of the physical layer has previously been successful during the start-up procedure. Capitalizing upon this classification, the pre-start-up procedure can use the best last time combination as the temporary available set for initiating the start-up procedure for the internal interface. Then, if the start-up procedure fails, the pre-start-up procedure can resort to using the union of all combinations as the temporary available set for initiating the start-up procedure for the internal interface.

The invention discloses a method and a system for transmitting same-phase orthogonal data. The method comprises the following steps of: for one or more standards, determining an IQ mapping mode adopted by each standard, and determining information on AxC Container in the IQ mapping mode corresponding to each standard and parameters of the standard in the corresponding IQ mapping mode; dividing an IQ data block (IQ Data Block) of a basic frame, wherein the divided IQ Data Block comprises a part for loading the AxC Container of all the standards and a part for providing a timing reference of AxC Container Block; and transmitting and / or restoring radio service IQ data of the standard on a CPRI interface by using radio equipment controller (REC) or radio equipment (RE) according to the determined IQ mapping mode corresponding to the standard. The method and the system enhance the compatibility and the flexibility of the interface.

The embodiments of the present invention relate to a method and a device for transferring radio service data. The method includes: designing a radio service frame timing mechanism and / or a rule of filling IQ data for a plurality of standards; configuring frame timing mechanisms corresponding to various services according to the designed radio service frame timing mechanism and / or the rule of filling IQ data for a plurality of standards; and transmitting multi-standard radio service data according to the configured frame timing information and / or methods of mapping IQ containers. The device includes a determination unit, a configuring unit and a transfer unit. Thus, uniform transmission of radio IQ data and frame synchronization for different standards may be enabled via a common radio interface between a Radio Equipment Controller (REC) and a Radio Equipment (RE).

The invention provides a method and device for sending and receiving data between the radio equipment (RE) and radio equipment controller (REC) of a radio base station through the Ethernet. The method for sending data comprises the following steps: adapting the data frames, meeting the radio remote protocol, of a physical adaptation layer to obtain data frames suitable for the physical layer transmission of the Ethernet; and sending the adapted Ethernet data frames on the physical layer of the Ethernet.

A radio base station BTS according to the present invention includes a timing adjustment unit 15 configured to adjust transmission timing of the frame to be transmitted by a second synchronous signal transmission unit, 12 based on processing delay time in the relay device 10 and round-trip time RTT of the radio equipment device RE at the relay device 10, and the radio equipment controller REC#1, #2 are configured to calculate round-trip time RTT of the radio equipment device RE at the radio equipment controller REC#1, #2, based on a difference T14 between transmission time of the first synchronous signal R1 and reception time of the fourth synchronous signal R4.

The present invention discloses a communication signal multiplexing method, a radio communication system, and a radio equipment controller (REC). Taking the common public radio interface (CPRI) standard as an example, by carrying multiple CPRI links on limited physical links (CPRI-MUX), generally one high-speed physical link, physical bandwidth is used more efficiently and the number of interconnected interfaces and the system cost are reduced without compromising with the CPRI standard is maintained. When the bandwidth provided by the high-speed physical link is insufficient, more physical links can be adopted.

A radio equipment control for communicating plural radio equipment units including an identifier inserting unit for inserting into a frame an identifier for recognizing a connection relation of plural cascade-connected radio equipment units and a transmitting unit for transmitting the frame having the identifier inserted therein by the identifier inserting unit to the plural cascade-connected radio equipment units. The wireless communication apparatus includes a receiving unit for receiving the frame having the identifier inserted therein from the plural cascade-connected radio equipment units and a connection relation recognizing unit for recognizing the connection relation of the plural cascade-connected radio equipment units on the basis of the identifier of the frame received by the receiving unit.

A system for troubleshooting signals in a cellular communications network, and in particular, for determining the cause of distortion or corruption of such signals, includes a robotic or other type of switch. The robotic switch can tap into selected uplink fiber-optic lines and selected downlink fiber-optic lines between radio equipment and radio equipment controllers in a wireless (e.g., cellular) network to extract therefrom the I and Q data. The selected I and Q data, in an optical form, is provided to an optical-to-electrical converter forming part of the system. The system includes an FPGA (Field Programmable Gate Array) or the like, and an analytic computer unit, or web server, and SSD (Solid State Drive) and magnetic disk storage, among other components of the system. The system analyzes the I and Q data provided to it, and determines the cause, or at least narrows the field of possible causes, of impairment to transmitted signals. The system includes a display which provides the troubleshooting information thereon for a user of the system to review, or other form of a report, and may communicate the analytical findings to a remote location over a public or private internet protocol network.

The present invention comprises methods and apparatuses for maintaining radio network timing synchronization across an asynchronous communication link (26) between a Radio Equipment Controller (REC) (12) and an item of Radio Equipment (RE) (14). An REC- side adaptor (30) sends first and second asynchronous packet flows over the asynchronous communication link (26), including a downlink packet flow comprising CPRI basic frames (34) and overhead information encapsulated in asynchronous communication link packets, and a synchronization packet flow comprising CPRI clock data. A RE-side adaptor (32) recovers the CPRI clock from the synchronization packet flow, and uses the recovered clock to re- synchronize the downlink data (14) recovered from the downlink packet flow. For the uplink, the RE (16) outputs uplink traffic in a synchronous, CPRI-compliant stream that is then encapsulated for asynchronous transport by the RE-side adaptor (32). The REC-side adaptor (30) reconstitutes the asynchronously received uplink data as a synchronous, CPRI-compliant stream for input to the REC (12).

The embodiment of the invention discloses a rate negotiation method, a data transmission system and related equipment, and is used for improving data transmission efficiency. The method comprises the following steps that: a radio equipment controller (REC) communicates with radio equipment (RE) at a first rate; the REC determines a second rate supported by the REC and the RE jointly, wherein the second rate is higher than the first rate; and the REC communicates with the RE at the second rate. The embodiment of the invention also provides a data transmission system and related equipment. The embodiment of the invention can effectively improve the data transmission efficiency.

A distributed radio base station includes a first radio equipment controller (REC) node (12), a second radio equipment controller (REC) node (14), and a radio equipment (RE) node (16) for transceiving information over a radio interface with one or more radio terminals. The first REC node and the second REC node are physically separate from the RE node. The first REC node and / or the second REC node are / is connected to the RE node by a transmission link. Synchronization reference information is provided to one of the REC and RE nodes. The synchronization reference information in the one node is compared with timing information received from another of the REC nodes to generate a timing difference. The timing difference is used to adjust a timing unit at the another node in order to achieve timing synchronization between the RE node, the first REC node, and the second REC node.

The embodiment of the invention provides a wireless device controller, which is applied in a wireless communication system, and is connected with at least one multimode wireless device; and the wireless device controller comprises a wireless device controller-wireless device interface module used for connecting the wireless device controller and the wireless device, and a concatenation connection interface module used for connecting at least one wireless device controller and another wireless device controller; and the wireless device controller-wireless device interface module is connected with the multimode wireless device through a physical link. The embodiment of the invention also provides a wireless communication system and a communication data transmission method; and the RE can perform data interaction with various RECs through one physical link in the various embodiments of the invention. The different RECs can share the physical bandwidth of the physical link connected with the RE; the transmission cost is reduced; the REC-RE interface number of the RE can also be greatly reduced, and wiring complexity and the installation cost of the system can be reduced.

A method of resetting at least one node within a Common Public Radio Interface (CPRI) radio base station system is described. The method comprises, at an end-point Radio Equipment Controller (REC) node within the CPRI radio base station system, receiving on a slave port a reset notification, and in response thereto transmitting on the slave port a reset notification comprising a reset bit being set within at least ten hyperframes.

The present invention provides a method and device for allocating a bandwidth of a high-level data link control link. The method is applied to a common public radio interface CPRI link formed by a radio equipment controller REC and over two radio equipments REs through link networking and comprises: an RE making statistics on communication traffic from the RE to an uplink HDLC sub-link of the REC; the RE determining, according to the communication traffic obtained through statistics and a current link bandwidth of the uplink HDLC sub-link, whether it is needed to adjust a link bandwidth of the uplink HDLC sub-link; when the RE determines that the link bandwidth of the uplink HDLC sub-link needs to be adjusted, sending a bandwidth adjustment request message to the REC; and the RE, together with the REC, adjusting the link bandwidth of the uplink HDLC sub-link according to a bandwidth adjustment response message that is returned by the REC and carries bandwidth adjustment amount.

A method and an interface unit is provided to maintain timing synchronization between a first Radio Equipment Controller (REC) and a second REC operating with a multi-standard base station. The first REC receives a synchronization signal and synchronized data output is generated from the synchronization signal. A clock signal is then generated from the synchronized data output. At the second REC, the synchronized data output is received and a synchronization source is then reconstructed from the first clock signal. A timing and frequency component of a second clock signal is then aligned to that of the reconstructed synchronization source, such that the second REC can maintain synchronization with the first REC.

The present disclosure relates to delay compensation during synchronization of uplink and downlink frames in a base station in a cellular communication network. In general, the base station includes a radio equipment and a radio equipment controller that together form at least part of the base station. In one embodiment, the radio equipment includes a first interface configured to receive data from the radio equipment controller and a second interface configured to send data to the radio equipment controller. During synchronization, the radio equipment receives, at the first interface of the radio equipment, a synchronization message from the radio equipment controller. The radio equipment then passes the synchronization message from the first interface of the radio equipment to the second interface of the radio equipment with a synthetic delay that is in addition to an in-equipment delay from the first interface to the second interface.

A radio frequency signal transceiving method and device thereof are proposed. The method is configured for a radio equipment controller (REC) of a radio frequency signal transceiving device to exchange radio signals between a plurality of Baseband Units (BBUs) and a plurality of Radio Equipments (REs) that respectively connected to a plurality of Remote Radio Units (RRUs), and the method includes but not limited to the step of: receiving a first radio downlink signal at least, generating a first downlink control signal, modulating the first radio downlink signal at least into a first analog downlink signal at a first frequency according to the first downlink control signal, multiplexing the first analog downlink signal and the first downlink control signal into an integrated analog downlink signal, converting the integrated analog downlink signal into an optical downlink signal, and transmitting the optical downlink signal.

The invention discloses a method for accessing network administration platform with remote radio frequency unit to realize radio equipment (RE) collocation by network administrator when the chain between the radio equipment controller (REC) and the radio equipment (RE) breaks up. The method comprises the following steps: building up a simulation REC firstly; when the network management platform judges that the target IP address input by a user is the RE address, the simulation REC is started up to detect the corresponding RE of the target IP address and build up a connection with the RE through the REC-RE interface; the user sends RE collocation operation to the simulation REC through the network management platform; the simulation REC collocates the RE through the REC-RE interface according to the collocation operation of the user; the RE feeds back the collocation results to the user through the simulation REC and the network management platform. The method of the invention needs no redefinition of the network management RE interface and still utilizes REC-RE interface in prior art, which is conducive to reduce the complexity of network administration platform and makes application simple and easy to fulfill thereby.

A radio system having multi-standard mixed mode radios is described. The mixed mode radios are used to support combining of digital baseband from a first and a second radio equipment controller. A primary clock associated with the first radio equipment controller and a secondary clock associated with the second radio equipment controller is provided. The quality of the primary clock is evaluated and the primary clock is referenced to the first radio equipment controller if the clock is determined to have appropriate quality factors. The quality of the secondary clock is then evaluated and the secondary clock is referenced to the second radio equipment controller if the secondary clock is determined to have appropriate quality factors. The second radio equipment controller is then referenced to the primary clock once the primary and secondary clocks are aligned.

The invention discloses a capacity negotiation method, a radio equipment controller and radio equipment. The method includes the steps of: acquiring physical capacity information of radio equipment (RE); determining logic capacity information configured for the RE; determining target operation capacity information of the RE according to the physical capacity information and the logic capacity; and sending a capacity negotiation confirmation message to the RE, the capacity negotiation confirmation message indicating the target operation capacity information. The capacity negotiation method, the radio equipment controller and the radio equipment of the embodiment determine the target operation capacity information of the RE according to the physical capacity information of RE and the logic capacity information configured for the RE through the radio equipment controller, and indicate the determined target operation capacity information to RE, so that the radio equipment controller and the radio equipment can perform simple and effective capacity negotiation when base station data is carried by an Ethernet-switched network or a transmission network. As a result, the operation capacity information of the RE and the negotiation determined target operation capacity information are consistent.

The fronthaul system for a wireless telecommunication network comprises: a plurality of baseband units; at least a radio equipment controller module coupled to the plurality of baseband units; a plurality of radio equipment modules coupled to at least one physical antenna port and provided with at least a slave port and at least a master port, wherein the slave port is coupled to a master port of the radio equipment controller module or to a master port of another radio equipment module, wherein each of the radio equipment modules is configured to receive an uplink antenna-carrier stream from a physical antenna port and to transmit the received uplink antenna-carrier stream to its slave port and, if it has a master port connected to another radio equipment module, it is configured to synchronize and sum the received uplink antenna-carrier stream with at least one uplink antenna-carrier stream received from said master port to create a summed uplink antenna-carrier stream and to transmit the summed uplink antenna-carrier stream to its slave port, and wherein each of the radio equipment modules is configured to receive a downlink antenna-carrier stream from the radio equipment controller module or from another radio equipment module to its slave port for the transmission to at least one of said physical antenna port and, if it has a master port connected to another radio equipment module, it is configured to forward at least part of the downlink antenna-carrier stream to the master port.

A radio equipment control for communicating plural radio equipment units including an identifier inserting unit for inserting into a frame an identifier for recognizing a connection relation of plural cascade-connected radio equipment units and a transmitting unit for transmitting the frame having the identifier inserted therein by the identifier inserting unit to the plural cascade-connected radio equipment units. The wireless communication apparatus includes a receiving unit for receiving the frame having the identifier inserted therein from the plural cascade-connected radio equipment units and a connection relation recognizing unit for recognizing the connection relation of the plural cascade-connected radio equipment units on the basis of the identifier of the frame received by the receiving unit.

An embodiment of the invention provides a multiplex method of a communication signal, a wireless communication system and a radio equipment controller. Taking a CPRI (common public radio interface) as an example, in each embodiment provided in the invention, through bearing a plurality paths of CPRI links on a limited physical link (CPRI-MUX), generally on a path of high speed physical link, a physical bandwidth is fully utilized, a quantity of interconnection interfaces is reduced, system cost is reduced, and compatibility of a CPRI standard is maintained simultaneously. When the high speed physical link bandwidth is not enough, a physical link can be increased further.