WO2016101589A1

WO2016101589A1 - Control word processing method, device and communication system

Info

Publication number: WO2016101589A1
Application number: PCT/CN2015/083459
Authority: WO
Inventors: 罗成
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-12-26
Filing date: 2015-07-07
Publication date: 2016-06-30
Also published as: CN105790876A; CN105790876B

Abstract

A control word processing method, device and communication system, the method comprising: acquiring a multiplexing attribute of a control word to be processed, the multiplexing attribute comprising whether the control word is time division multiplexing; configuring a control word device corresponding to the control word according to the multiplexing attribute; and the control word device processes the control word. The above technical solution enables a combination of software and hardware during the control word processing, thus reducing complexity for achieving a circuit, and completing a function upgrade of the circuit through a software upgrade.

Description

Control word processing method, device and communication system

Technical field

The present invention relates to the field of communications technologies, and in particular, to a control word processing method, apparatus, and communication system in a communication system established based on a CPRI protocol.

Background technique

When a communication system is established by using the Common Public Radio Interface (CPRI) protocol, such as a BBU (Building Baseband Unit) and a RRU (Radio Remote Unit) using the CPRI protocol network. The BBU needs to send a control word to the RRU to complete the control function of the RRU. At the same time, the BBU also needs to accept the control word sent by the RRU to monitor the status of the RRU in real time. When multiple RRUs are used for networking with the BBU, such as chain type, ring network, etc., it is generally necessary to implement transmission and/or reception of control words with time-division multiplexing with superframe numbers, such as when the BBU passes a control word. When a plurality of RRUs are marked, it is generally required to send different labels to each RRU in the control word position in different superframes, and each RRU also needs to perform parsing of the control word according to the superframe number. In this process, if a pure hardware circuit is used to implement time division multiplexing of control words, the hardware circuit is very complicated and cannot be upgraded by software.

Therefore, how to provide a control word implementation technology that can reduce the complexity of the circuit is a technical problem to be solved by those skilled in the art.

Summary of the invention

Embodiments of the present invention provide a control word processing method, apparatus, and communication system to solve the technical problem of how to reduce the complexity of control word implementation.

The embodiment of the invention provides a control word processing method. In an embodiment, the method includes:

The processor acquires a multiplexing attribute of the control word to be processed, and the multiplexing attribute includes whether the control word is time division multiplexed;

The processor configures a control word device corresponding to the control word according to the multiplexing attribute; the control word device processes the control word.

Optionally, the step of the processor in the foregoing embodiment configuring the control word device corresponding to the control word according to the multiplexing attribute includes: determining a control word configuration device corresponding to the control word device, configuring the control word configuration device according to the multiplexing attribute, and adopting The control word configuration device configures the control word device to process the control word.

Optionally, when the multiplexing attribute is the control word time division multiplexing, the step of configuring the control word configuration device according to the multiplexing attribute in the foregoing embodiment includes: configuring the time division multiplexing field of the control word configuration device to be valid, and configuring the time division multiplexing The superframe number range used; the step of configuring the control word device by the control word configuration means comprises: storing the linked list first address of the control word in the control word device.

Optionally, the method further includes:

When the multiplexing attribute is time division multiplexing of the control word, the length of the linked list is determined according to the range of the super frame number, and the number of linked list devices in the linked list device group is determined according to the length of the linked list and the depth of the linked list device, and the first address of the linked list is the linked list device. The address of the time-division control word table in the first linked list device of the group.

Optionally, the method further includes:

When the multiplexing attribute is the control word time division multiplexing, in addition to configuring the control word configuration device according to the multiplexing attribute, the interrupt mechanism of the control word is also determined, and the interrupt configuration device for implementing the control word interrupt is configured according to the interrupt mechanism.

Optionally, when the multiplexing attribute includes the control word not time division multiplexing, the step of configuring the control word configuration device according to the multiplexing attribute in the foregoing embodiment includes: configuring the time division multiplexing field of the control word configuration device to be invalid; The step of the word configuration device configuring the control word device includes storing the control word in the control word device.

An embodiment of the present invention provides a control word processing apparatus. In an embodiment, the method includes a processor and a control word device, wherein the processor is configured to acquire a multiplexing attribute of a control word to be processed, and configure according to the multiplexing attribute. The control word device corresponding to the control word, the multiplexing attribute includes whether the control word is time division multiplexed; the control word device is set to process the control word.

Optionally, the processing device further includes: a control word configuration device; the processor is configured to configure, according to the multiplexing attribute, a control word device corresponding to the control word by: determining a control word corresponding to the control word device Configuring the device, configuring the control word configuration device according to the multiplexing attribute, The control word configuration device configures the control word device to process the control word.

Optionally, the processor is configured to configure the control word configuration device according to the multiplexing attribute by configuring the control word device by using the control word configuration device:

When the multiplexing attribute is the control word time division multiplexing, the time division multiplexing field of the configuration control word configuration device is valid, and the superframe number range of the time division multiplexing is configured; the first address of the linked list of the control word is stored in the control word device.

Optionally, the processor is further configured to:

Optionally, the device further includes an interrupt configuration device;

The processor is further configured to: when the multiplexing attribute is a control word time division multiplexing, determine an interrupt mechanism of the control word, and configure an interrupt configuration device according to the interrupt mechanism;

The interrupt configuration device is configured to implement an interrupt of the control word according to the interrupt mechanism.

Optional,

The processor is configured to configure the control word configuration device according to the multiplexing attribute by configuring the control word device by the control word configuration device:

When the multiplexing attribute is the control word not time division multiplexing, the time division multiplexing field of the configuration control word configuration device is invalid; the control word is stored in the control word device.

The embodiment of the present invention provides a communication system based on the CPRI protocol, which includes the control word processing apparatus provided by the embodiment of the present invention.

An embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the foregoing method.

Advantageous effects of embodiments of the present invention:

The solution provided by the embodiment of the present invention completes the dynamic configuration of the multiplexing attribute of the control word according to the required processing by using a device such as a control word register that can be flexibly configured, under the control of the processor, The combination of software and hardware in the process of control word processing is realized, the complexity of implementing the circuit is reduced, and the function upgrade of the circuit can be completed by performing software upgrade.

BRIEF abstract

1 is a flowchart of a control word processing method according to a first embodiment of the present invention;

2 is a schematic diagram of a control word processing apparatus according to a second embodiment of the present invention;

3 is a schematic diagram of a time-division multiplexed control word table in a third embodiment of the present invention;

4 is a schematic diagram of forming a linked list of time-division multiplexed control words according to a third embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a control word configuration apparatus and an interrupt apparatus according to a third embodiment of the present invention; FIG.

6 is a schematic diagram of transmission of a control word in a third embodiment of the present invention;

Figure 7 is a schematic diagram of control word reception in a third embodiment of the present invention;

FIG. 8 is a schematic diagram of interrupt generation in a third embodiment of the present invention.

Preferred embodiment of the invention

The invention will now be further illustrated by way of specific embodiments in conjunction with the accompanying drawings.

In a practical application, when a transmitting end (such as a BBU) sends a control word, the superframe represented by each Hyper Frame Number (HFN) includes 256 basic frames, and each basic frame can be sent. A control word (Control Word), therefore, includes 256 control word configuration devices (Control Word Config Reg) and control word devices (Control Word Reg), control word configuration device and control word device on the transmitting end and/or the receiving end. One-to-one correspondence; the control word processing method according to the embodiment of the present invention is directed to a control word and its corresponding control word device, when a control word is transmitted by using multiple basic frames in a superframe (one control word is sent per basic frame) At the time, the steps of the embodiments of the present invention need to be performed for each control word. The apparatus involved in the present application may use a configurable device such as a register; the time division multiplexing according to the embodiment of the present invention refers to the basic frame transmission corresponding to the same basic frame number of each superframe in the superframe of the time division multiplexing. Different control words.

First embodiment:

1 is a flowchart of a control word processing method according to a first embodiment of the present invention. In this embodiment, the control word processing method provided by the embodiment of the present invention includes the following steps:

S101: The processor acquires a multiplexing attribute of a control word to be processed, and the multiplexing attribute includes whether the control word is time division multiplexed;

S102: The processor configures a control word device corresponding to the control word according to the multiplexing attribute.

S103: The control word device processes the control word.

In some embodiments, the step of configuring the control word device corresponding to the control word according to the multiplexing attribute in the embodiment shown in FIG. 1 comprises: determining a control word configuration device corresponding to the control word device, and configuring the control word configuration according to the multiplexing attribute The device configures the control word device via a control word configuration device.

In some embodiments, when the multiplexing attribute is a control word not time division multiplexing, the step of configuring the control word configuration device according to the multiplexing attribute in the embodiment shown in FIG. 1 includes: configuring a time division multiplexing field of the control word configuration device ((Time division) is invalid; the step of configuring the control word device by the control word configuration means includes storing the control word in the control word device.

In some embodiments, when the multiplexing attribute is control word time division multiplexing, the step of configuring the control word configuration device according to the multiplexing attribute in the embodiment shown in FIG. 1 includes: configuring the time division multiplexing field of the control word configuration device to Effectively, the time frame multiplexed superframe number range is configured; the step of configuring the control word device by the control word configuration means includes: storing the linked list head address of the control word in the control word device.

In some embodiments, when the multiplexing attribute is the control word time division multiplexing, the above embodiment further includes: determining the length of the linked list according to the superframe number range, and determining the required linked list device group according to the length of the linked list and the depth of the linked list device. The number of linked list devices, the first address of the linked list is the address of the time-division control word table in the first linked list device of the linked list device group.

In some embodiments, the foregoing embodiment further includes: when the multiplexing attribute is the control word time division multiplexing, determining the control word in addition to configuring the control word configuration device according to the multiplexing attribute. The interrupt mechanism configures the interrupt configuration device according to the interrupt mechanism.

Second embodiment:

2 is a schematic diagram of a control word processing apparatus according to a second embodiment of the present invention. As shown in FIG. 2, in the embodiment, the control word processing apparatus 2 provided by the embodiment of the present invention includes a processor 21 and a control word device 22. among them,

The processor 21 is configured to acquire a multiplexing attribute of the control word to be processed, and configure according to the multiplexing attribute Control word device corresponding to the control word, the multiplexing attribute includes whether the control word is time division multiplexed;

Control word device 22 is arranged to process the control word.

In some embodiments, as shown in FIG. 2, the control word processing device 2 further includes a control word configuration device 23, and the processor 21 is further configured to determine a control word configuration device 23 corresponding to the control word device 22, configured according to the multiplexing attribute. Control word configuration means 23; control word configuration means 23 is arranged to configure control word means 22.

In some embodiments, when the multiplexing attribute is the control word not time division multiplexing, the processor 21 in the above embodiment is set to configure the control word configuration means 23 to disable the time division multiplexing field; storing the control word in the control In the word device 22.

In some embodiments, when the multiplexing attribute is the control word time division multiplexing, the processor 21 in the above embodiment is configured to configure the time division multiplexing field of the control word configuration device 23 to be valid, and configure the time division multiplexed superframe. The range of numbers; the first address of the linked list of control words is stored in control word device 22.

In some embodiments, when the multiplexing attribute is control word time division multiplexing, the processor 21 in the above embodiment is further configured to determine the length of the linked list according to the superframe number range, and determine the requirement according to the length of the linked list and the depth of the linked list device. The number of linked list devices in the linked list device group, and the first address of the linked list is the address of the time-division control word table in the first linked list device of the linked list device group.

In some embodiments, as shown in FIG. 2, the control word processing device 2 further includes an interrupt configuration device 24, and when the multiplexing attribute is a control word time division multiplexing, the processor 21 in the above embodiment is further configured to determine the control word. The interrupt mechanism configures the interrupt configuration device 24 in accordance with the interrupt mechanism. The interrupt configuration means 24 is arranged to effect an interruption of the control word in accordance with the interrupt mechanism.

The embodiment of the present invention provides a communication system based on the CPRI protocol, which includes the control word processing device 2 provided by the embodiment of the present invention, and completes processing functions such as receiving and transmitting control words.

Third embodiment:

In the present embodiment, the control words, the reception and transmission of control words, the generation of interrupts, and the like are respectively described in detail for the two types of multiplexing attributes, and the following devices are described by taking a register as an example. details as follows:

As shown in FIG. 3, a plurality of memory arrays constitute a Time Division Control Word Table, and the bit width of each control word table is a specified bit width N (16 bits, of the control word in the CPRI system. 32bit, etc., the depth of the control word table is M (16, 32, etc.); control The word table needs to be uniformly addressed, but the control word read and write can be indirectly read or written or uniformly addressed by other registers. According to the system and the plan of future upgrade, the number of control word tables can be customized. These memories can be realized by registers or multiple types of RAM (Random Access Memory). The memory depth is shallow and the bit width is CPRI control. The width of the word; and, the number of register banks used as linked list nodes must match the control word list.

As shown in Figure 4, the device that sends and receives the control word has 256 control word configuration registers and control word registers. The control word configuration registers are in one-to-one correspondence with the control word registers. The control word configuration register (Control Word Config Reg) and control The word register (Control Word Reg) has a bit width of L (16 bits, 32 bits, etc.), and L is greater than or equal to N, N the bit width of the control word table. The control word configuration registers need to be addressed in a unified manner, and the control word registers can be addressed in a unified manner or indirectly through other registers. The control word register can store the control word or the first address of the linked list of the time control word. The control word n needs time division multiplexing, then the corresponding control word register stores the starting address of a linked list, that is, points to a linked list register group (Link List Reg Group), and the linked list register group used to form the linked list has a bit width L. And need to be unified addressing.

When some control words need time division multiplexing, the linked list is established according to the number of time division control words, that is, the super frame number range determines the length of the linked list, and the required list device of the linked list device group is determined according to the length of the linked list and the depth of the linked list device. For example, when occupying the superframe 0-47 to transmit the time division multiplexing control word, it is necessary to construct a time division multiplexing control word of 48 super frame numbers, the link table length is 48, and the depth of the time division control word table in each linked list register is 16 When only three linked list registers are required to form a linked list register group, the establishment of the linked list can be completed, and the three time-division control word table pointers (TDCWT Ptr) respectively point to the addresses of the time-division control word tables in the three linked list devices, all next The node pointer (Next Ptr) points to the next linked list register group, and the next node pointer of the last node directly points to the NULL (null value) address, and the first address of the linked list in this application is the first linked list device. The address of the time-controlled control word table. If the control word does not require time division multiplexing, then a single control word can be stored directly in the control word register, such as control word n-1 (Control Word n-1) and control word n+1 (Control Word n+1) .

As shown in Figure 5, the enable of time division multiplexing of the transmit and receive control words is controlled by the transmit and receive control word configuration registers, ie the Time division enable field in the Control Word Configuration Register, and the time divisions can be specified by these two registers. Multiplexed superframe number range, including minimum superframe number (HFN Min No.) and maximum superframe number (HFN Max No.). In addition, for receiving, the receiving control word configuration register can be configured to receive the interrupt of the control word, that is, the Interrupt field in the control word configuration register is received. When the interrupt of a certain control word is enabled, the control word will be in the super frame. A cycle generation interrupt is used to receive real-time processing of control words. The interrupt configuration register (Interrupt Config Reg) is mainly set to implement the 10ms interrupt for transmitting and receiving the control word. After receiving the interrupt signal, the transmitting end and the receiving end control the internal processor to process the control word. Optionally, the transmitting end The processor performs the update of the next control word or the modification of the transmission mechanism, and the processor at the receiving end begins to perform subsequent processing on the received control word.

As shown in FIG. 6, the control word is transmitted, and control word 1 is a general control word (control word without time division multiplexing), assuming basic frame 1 in each superframe (HFN) (Basic Frame No. 1) ) Send the control word. The control word 22 forms a time-division control word hash table through two time-division control word tables, and sets the minimum value of the time division multiplexing super frame number of the transmission control word configuration register to 0, and the maximum value is 31, and the super frame number is 0. The control word of -31 is time division multiplexed, and the basic frame 22 (Basic Frame No. 22) in superframe 0-31 transmits the control word in the time division control word table, wherein the depth of the time division control word table is 16, requiring 2 storages. Time-division control of the register of the word table, the specific effect is shown in Figure 6.

As shown in FIG. 7, the receiving process of the control word is the reverse process of the transmission process of the control word, and will not be described again.

As shown in Figure 8, the location where the interrupt is generated, the transmit and receive 10ms interrupt (Tx/Rx 10ms Interrupt) is once every 10ms frame, generated at the end of each 10ms frame. The maximum frequency of receiving control word interrupt (Rx CW Interrupt) is once per superframe, which is generated at the end of each superframe. According to the superframe number range of the time division control word, it can decide which superframes generate interrupts and which super The frame does not generate an interrupt. If only time division multiplexing with a superframe number of 0-2 is performed, then at the time of reception, an interrupt is generated only at the end of superframe 0-2.

In summary, through the implementation of the embodiments of the present invention, at least the following beneficial effects exist:

By using a control word register and other devices that can be flexibly configured, under the control of the processor, the dynamic configuration of the multiplexing attribute of the control word according to the required processing is completed, and the combination of software and hardware in the control word processing process is realized, and the implementation circuit is reduced. The complexity of the circuit can be upgraded by performing software upgrades.

The above is only a specific embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, equivalent change, combination or modification of the above embodiments in accordance with the technical spirit of the present invention is still in the present invention. The scope of protection of the technical solution of the invention.

One of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described embodiments can be implemented using a computer program flow, which can be stored in a computer readable storage medium, such as a system , apparatus, devices, devices, etc.), when executed, include one or a combination of the steps of a method embodiment.

Alternatively, all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.

The devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.

When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. The above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

Industrial applicability

The above technical solution realizes the combination of software and hardware in the process of controlling word processing, reduces the complexity of implementing the circuit, and can complete the function upgrade of the circuit by performing software upgrade.

Claims

A control word processing method includes:

Obtaining, by the processor, a multiplexing attribute of the control word to be processed, the multiplexing attribute including whether the control word is time division multiplexed;

The processor configures the control word device corresponding to the control word according to the multiplexing attribute;

The control word device processes the control word.
The control word processing method according to claim 1, wherein the step of configuring, by the processor, the control word device corresponding to the control word according to the multiplexing attribute comprises:

Determining a control word configuration device corresponding to the control word device;

And configuring the control word configuration device according to the multiplexing attribute;

The control word device is configured by the control word configuration device.
The control word processing method according to claim 2, wherein

When the multiplexing attribute is the time division multiplexing of the control word, the step of configuring the control word configuration device according to the multiplexing attribute includes:

Configuring a time division multiplexing field of the control word configuration device to be valid, and configuring a time division multiplexing superframe number range;

The step of configuring the control word device by the control word configuration device includes:

The linked list first address of the control word is stored in the control word device.
The control word processing method according to claim 3, further comprising:

When the multiplexing attribute is the time division multiplexing of the control word, determining the length of the linked list according to the superframe number range, and determining the required linked list device in the linked list device according to the length of the linked list and the depth of the linked list device The number of the linked list first address is the address of the time-division control word table in the first linked list device of the linked list device group.
The control word processing method according to claim 3, further comprising:

And when the multiplexing attribute is the time division multiplexing of the control word, in addition to configuring the control word configuration device according to the multiplexing attribute, determining an interrupt mechanism of the control word, according to the interrupt mechanism An interrupt configuration device for implementing control word interrupts.
The control word processing method according to any one of claims 2 to 5, wherein

When the multiplexing attribute is the time division multiplexing of the control word, the step of configuring the control word configuration device according to the multiplexing attribute includes: configuring a time division multiplexing field of the control word configuration device to be invalid;

The step of configuring the control word device by the control word configuration means includes storing the control word in the control word device.
A control word processing device, comprising a processor and a control word device, wherein

The processor is configured to acquire a multiplexing attribute of a control word to be processed, and configure a control word device corresponding to the control word according to the multiplexing attribute, where the multiplexing attribute includes whether the control word is time division multiplexed;

The control word means is arranged to process the control word.
A control word processing device according to claim 7, said processing device further comprising control word arranging means;

The processor is configured to configure a control word device corresponding to the control word according to the multiplexing attribute by:

Determining a control word configuration device corresponding to the control word device, configuring the control word configuration device according to the multiplexing attribute, and configuring the control word device by the control word configuration device.
The control word processing device according to claim 8, wherein

The processor is configured to configure the control word configuration device according to the multiplexing attribute by configuring the control word device by the control word configuration device:

When the multiplexing attribute is time division multiplexing of the control word, configuring a time division multiplexing field of the control word configuration device to be valid, configuring a superframe number range of time division multiplexing; and setting a link table first address of the control word Stored in the control word device.
A control word processing device according to claim 9,

The processor is further configured to: when the multiplexing attribute is the control word time division multiplexing, determine the length of the linked list according to the superframe number range, according to the length of the linked list and the depth of the linked list device The number of linked list devices in the linked list device group is determined, and the linked list first address is the address of the time division control word table in the first linked list device of the linked list device group.
The control word processing device of claim 9 further comprising interrupt configuration means;

The processor is further configured to: when the multiplexing attribute is the control word time division multiplexing, determine an interrupt mechanism of the control word, and configure an interrupt configuration device according to the interrupt mechanism;

The interrupt configuration device is configured to implement an interrupt of the control word according to the interrupt mechanism.
A control word processing device according to any one of claims 7 to 11, wherein

The processor is configured to configure the control word configuration device according to the multiplexing attribute by configuring the control word device by the control word configuration device:

When the multiplexing attribute is the time division multiplexing of the control word, the time division multiplexing field of the control word configuration device is configured to be invalid; and the control word is stored in the control word device.
A communication system based on the CPRI protocol, comprising the control word processing device according to any one of claims 7 to 12.
A computer storage medium having stored therein computer executable instructions for performing the method of any one of claims 1 to 6.