CN107360629A - A kind of satellite communication system cut-in method and device, satellite communication system - Google Patents

A kind of satellite communication system cut-in method and device, satellite communication system Download PDF

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Publication number
CN107360629A
CN107360629A CN201610305880.2A CN201610305880A CN107360629A CN 107360629 A CN107360629 A CN 107360629A CN 201610305880 A CN201610305880 A CN 201610305880A CN 107360629 A CN107360629 A CN 107360629A
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CN
China
Prior art keywords
random access
access request
network side
terminal
according
Prior art date
Application number
CN201610305880.2A
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Chinese (zh)
Inventor
刘路
张豪杰
Original Assignee
中兴通讯股份有限公司
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Priority to CN201610305880.2A priority Critical patent/CN107360629A/en
Publication of CN107360629A publication Critical patent/CN107360629A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/06Airborne or Satellite Networks

Abstract

The present invention provides a kind of satellite communication system cut-in method and device, satellite communication system, to solve the problems, such as resource that existing Random Access can greatly waste Stochastic accessing;Wherein, the cut-in method includes:The random access request of only carried terminal mark is sent on a random access channel, is received the random access request response of network side feedback, is responded according to the random access request, communicated with the network side.The solution of the present invention, the information content of random access request carrying can be simplified, resource overhead during so as to reduce Stochastic accessing, improve the overall performance of satellite communication system.

Description

A kind of satellite communication system cut-in method and device, satellite communication system

Technical field

The present invention relates to communication technical field, more particularly to a kind of satellite communication system cut-in method and device, Satellite communication system.

Background technology

Based on second generation DVB interactive satellite system (Second Generation Digital Video Broadcasting Interactive Satellite System, abbreviation DVB-RCS2) agreement interactive mode In satellite communication system, Stochastic accessing is divided into Stochastic accessing based on competition and based on non-competing Stochastic accessing. Generally, the Random Access based on competition is used.In the Random Access based on competition In, terminal can send random access request to network side on a random access channel, be provided according to agreement, institute State random access request and comprise at least herein below:1) the reason for access system;2) network residing for terminal State;3) terminal iidentification ID;4) the bottom ability level of terminal.As can be seen here, the Stochastic accessing please Ask the information content of carrying relatively more.

Also, in satellite communication system, the success rate of terminal Stochastic accessing is than relatively low, it may be necessary to repeatedly Stochastic accessing attempt can be successfully accessed system.For example, the terminal quantity for working as Stochastic accessing simultaneously compares When more, the probability to be collided between terminal can be bigger, and the terminal of collision rift needs to access again.In addition, When being initially accessed due to satellite, there is larger error in time and Frequency Synchronization, this also increases terminal The probability of access failure.

Because in current Random Access, the information content that random access request carries is relatively more, with Machine access success rate than relatively low, so, can greatly waste Stochastic accessing resource, reduce satellite communication The overall performance of system.

The content of the invention

It is an object of the invention to provide a kind of satellite communication system cut-in method and device, satellite communication system, To solve the problems, such as resource that existing Random Access can greatly waste Stochastic accessing.

In order to realize above-mentioned purpose, the present invention provides a kind of satellite communication system cut-in method, applied to end Side, including:

The random access request of only carried terminal mark is sent on a random access channel;

Receive the random access request response of network side feedback;

Responded according to the random access request, communicated with the network side.

Preferably, the random access request response includes time adjustment information, frequency adjustment information, physics At least one of address information and allocated dedicated channel information.

Preferably, when random access request response includes time adjustment information, described in the basis with Machine access request responds, and the step of being communicated with the network side includes:

According to the time adjustment information, the time of the local clock of terminal is corrected;

Based on the time after correction, communicated with the network side.

Preferably, when random access request response includes frequency adjustment information, described in the basis with Machine access request responds, and the step of being communicated with the network side includes:

According to the frequency adjustment information, the carrier frequency that signal is sent to terminal is corrected;

Based on the carrier frequency after correction, communicated with the network side.

Preferably, when random access request response includes physical address information, described in the basis with Machine access request responds, and the step of being communicated with the network side includes:

According to the physical address information, the route in terminal communication process is selected;

Based on the route after selection, communicated with the network side.

Preferably, when the random access request response includes allocated dedicated channel information, the basis Random access request response, the step of being communicated with the network side, include:

According to the allocated dedicated channel information, allocated dedicated channel is determined;

Communicated in the allocated dedicated channel with the network side.

Preferably, the step for sending the only random access request of carried terminal mark on a random access channel Before rapid, methods described also includes:

Random access channel configuration information is obtained from network side, and determines the RACH.

The present invention also provides a kind of satellite communication system access device, applied to end side, including:

Sending module, for sending the random access request of only carried terminal mark on a random access channel;

First receiving module, for receiving the random access request response of network side feedback;

Communication module, for being responded according to the random access request, communicated with the network side.

Preferably, the random access request response includes time adjustment information, frequency adjustment information, physics At least one of address information and allocated dedicated channel information.

Preferably, when random access request response includes time adjustment information, the communication module bag Include:

First correction unit, for according to the time adjustment information, entering to the time of the local clock of terminal Row correction;

First communication unit, for based on the time after correction, being communicated with the network side.

Preferably, when random access request response includes frequency adjustment information, the communication module bag Include:

Second correction unit, for according to the frequency adjustment information, the carrier frequency of signal to be sent to terminal It is corrected;

Second communication unit, for based on the carrier frequency after correction, being communicated with the network side.

Preferably, when random access request response includes physical address information, the communication module bag Include:

Selecting unit, for according to the physical address information, selecting the route in terminal communication process Select;

Third communication unit, for based on the route after selection, being communicated with the network side.

Preferably, it is described logical when random access request response includes allocated dedicated channel information Letter module includes:

Determining unit, for according to the allocated dedicated channel information, determining allocated dedicated channel;

Fourth communication unit, for being communicated in the allocated dedicated channel with the network side.

Preferably, described device also includes:

Acquisition module, for obtaining random access channel configuration information from network side, and determine described to connect at random Enter channel.

The present invention provides a kind of satellite communication system cut-in method again, applied to network side, including:

The random access request for the only carried terminal mark that receiving terminal is sent on a random access channel;

The terminal iidentification is authenticated;

After authentication passes through, to terminal feedback random access request response.

Preferably, the random access request response includes time adjustment information, frequency adjustment information, physics At least one of address information and allocated dedicated channel information.

The present invention provides a kind of satellite communication system access device again, applied to network side, including:

Second receiving module, the only carried terminal mark sent on a random access channel for receiving terminal Random access request;

Authentication module, for being authenticated to the terminal iidentification;

Feedback module, for after authentication passes through, being responded to terminal feedback random access request.

Preferably, the random access request response includes time adjustment information, frequency adjustment information, physics At least one of address information and allocated dedicated channel information.

The present invention provides a kind of satellite communication system cut-in method again, applied to satellite communication system, including:

Terminal sends the random access request of only carried terminal mark on a random access channel;

The only random access request of carried terminal mark, and to the terminal iidentification described in network side equipment reception Authenticated, after authentication passes through, to terminal feedback random access request response;

The terminal receives the random access request response, and is responded according to the random access request, with The network side equipment is communicated.

The present invention provides a kind of satellite communication system, including terminal and network side equipment again,

The terminal is used to send the random access request of only carried terminal mark on a random access channel, connects The random access request response of the network side equipment feedback is received, and is responded according to the random access request, Communicated with the network side equipment;

The network side equipment is used for the random access request for receiving the only carried terminal mark, and to described Terminal iidentification is authenticated, and after authentication passes through, is fed back the random access request to the terminal and is responded.

By the present invention above-mentioned technical proposal, the beneficial effects of the present invention are:

The satellite communication system cut-in method of the present invention, by sending only carried terminal on a random access channel The random access request of mark, the random access request response of network side feedback is received, is connect at random according to described Enter request response, communicated with the network side, the information content of random access request carrying can be simplified, Resource overhead during so as to reduce Stochastic accessing, improve the overall performance of satellite communication system.

Brief description of the drawings

Fig. 1 represents the flow chart of the satellite communication system cut-in method of the embodiment of the present invention.

Fig. 2 represents the structural representation of the satellite communication system access device of the embodiment of the present invention.

Fig. 3 represents the flow chart of another satellite communication system cut-in method of the embodiment of the present invention.

Fig. 4 represents the structural representation of another satellite communication system access device of the embodiment of the present invention.

Fig. 5 represents the flow chart of the another satellite communication system cut-in method of the embodiment of the present invention.

Fig. 6 represents the structural representation of the satellite communication system of the embodiment of the present invention.

In Fig. 7 one satellite communication systems of expression, the reverse link running time-frequency resource based on MF-TDMA access ways Structure chart.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear Chu, it is fully described by, it is clear that described embodiment is part of the embodiment of the present invention, rather than all Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative labor The every other embodiment obtained under the premise of dynamic, belongs to the scope of protection of the invention.

Shown in Figure 1, the embodiment of the present invention provides a kind of satellite communication system cut-in method, applied to end Side, comprise the following steps:

Step 101:The random access request of only carried terminal mark is sent on a random access channel;

Step 102:Receive the random access request response of network side feedback;

Step 103:Responded according to the random access request, communicated with the network side.

The satellite communication system cut-in method of the embodiment of the present invention, is only taken by sending on a random access channel Tape terminal identifies ID random access request, receives the random access request response of network side feedback, according to The random access request response, is communicated with the network side, can simplify random access request carrying The information content, resource overhead during so as to reduce Stochastic accessing, improve the overall performance of satellite communication system.

Specifically, in the prior art, provided according to agreement, the letter that the random access request that terminal is sent carries The bottom of network state, Termination ID and terminal residing for the reason for breath content comprises at least access system, terminal Layer ability level etc., that is, the information content carried is more.And in the embodiment of the present invention, what terminal was sent connects at random Enter request only carried terminal ID, in access procedure is attempted, too many random access resource will not be taken, The expense of random access resource can be reduced.

Wherein, the Termination ID is, for example, the hardware ID of terminal, for unique identification terminal.

In the embodiment of the present invention, according to the actual conditions of random access request and access channel, network side feedback Random access request response optionally include time adjustment information, frequency adjustment information, physical address At least one of information and allocated dedicated channel information.

In the embodiment of the present invention, when random access request response includes time adjustment information, the step Rapid 103 include:

According to the time adjustment information, the time of the local clock of terminal is corrected;

Based on the time after correction, communicated with the network side.

Wherein, the time of the local clock of terminal is corrected, is primarily due to time and the net of end side Deviation be present in the time of network side, and by trimming process, both can be made to keep synchronous, ensure subsequent communications mistake Journey is normally carried out.

Specific trimming process can be illustrated by examples below:Asked assuming that network side equipment can receive Stochastic accessing The time window asked is 10ms, and the signal length of random access request is 1ms, is somebody's turn to do as long as the 1ms is in In 10ms, the network side equipment can just receive random access request, and the only 1ms is in During the centre of the 10ms, just represent that the time of end side and the time of network side are synchronous;

Wherein, when the 1ms is in the leading portion of the 10ms, for example away from centre 3ms position when, net Network side apparatus can send time adjustment information to terminal, make terminal adjustment time 3ms backward, and same works as The 1ms is in the back segment of the 10ms, for example away from centre 3ms position when, network side equipment can Time adjustment information is sent to terminal, makes terminal adjustment time 3ms forward, to ensure end side time and net The synchronization of network side time.

In the embodiment of the present invention, when random access request response includes frequency adjustment information, the step Rapid 103 include:

According to the frequency adjustment information, the carrier frequency that signal is sent to terminal is corrected;

Based on the carrier frequency after correction, communicated with the network side.

Wherein, the carrier frequency that signal is sent to terminal is corrected, and is primarily due to the reasons such as channel, is made It is inconsistent that the uplink carrier frequency of signal is sent with terminal into the carrier frequency that network side equipment receives, with rule Fixed carrier frequency is inconsistent, and by trimming process, such case can be improved, ensure subsequent communications process Be normally carried out.

Specific trimming process can be illustrated by examples below:Assuming that the uplink carrier frequency that terminal sends signal is 14GHz, under normal circumstances, the carrier frequency that network side equipment receives also should be 14GHz, and because letter Road reason, the carrier frequency that network side equipment receives may be 14.00001GHz;In this case, Network side equipment can make terminal by uplink carrier frequency by 14GHz to terminal transmission frequency adjustment information 13.99999GHz is adjusted to, to ensure carrier frequency that network side equipment receives as 14GHz, after guarantee Continuous communication process is normally carried out.

In the embodiment of the present invention, when random access request response includes physical address information, the step Rapid 103 include:

According to the physical address information, the route in terminal communication process is selected;

Based on the route after selection, communicated with the network side.

That is, the physical address information is for the Route Selection in SS later communication process, protect Card communication process is smoothly rapidly carried out.

In the embodiment of the present invention, when random access request response includes allocated dedicated channel information, The step 103 includes:

According to the allocated dedicated channel information, allocated dedicated channel is determined;

Communicated in the allocated dedicated channel with the network side.

So, it is ensured that subsequent communications process is normally carried out.

In the embodiment of the present invention, before the step 101, methods described also includes:

Random access channel configuration information is obtained from network side, and determines the RACH.

That is, before sending random access request on a random access channel, terminal need to be from network side Random access channel configuration information is obtained in broadcast table, with RACH corresponding to determination.

Shown in Figure 2, the embodiment of the present invention also provides a kind of satellite communication system access device, is applied to End side, corresponding with the satellite communication system cut-in method shown in Fig. 1, described device includes:

Sending module 21, the Stochastic accessing for sending only carried terminal mark on a random access channel please Ask;

First receiving module 22, for receiving the random access request response of network side feedback;

Communication module 23, for being responded according to the random access request, communicated with the network side.

The satellite communication system access device of the embodiment of the present invention, is only taken by sending on a random access channel The random access request of tape terminal mark, the random access request response of network side feedback is received, according to described Random access request responds, and is communicated with the network side, can simplify the letter of random access request carrying Content is ceased, resource overhead during so as to reduce Stochastic accessing, improves the overall performance of satellite communication system.

Specifically, the random access request response optionally includes time adjustment information, frequency adjusts At least one of information, physical address information and allocated dedicated channel information.

Wherein, when random access request response includes time adjustment information, the communication module includes:

First correction unit, for according to the time adjustment information, entering to the time of the local clock of terminal Row correction;

First communication unit, for based on the time after correction, being communicated with the network side.

Wherein, when random access request response includes frequency adjustment information, the communication module includes:

Second correction unit, for according to the frequency adjustment information, the carrier frequency of signal to be sent to terminal It is corrected;

Second communication unit, for based on the carrier frequency after correction, being communicated with the network side.

Wherein, when random access request response includes physical address information, the communication module includes:

Selecting unit, for according to the physical address information, selecting the route in terminal communication process Select;

Third communication unit, for based on the route after selection, being communicated with the network side.

Wherein, when random access request response includes allocated dedicated channel information, the communication Module includes:

Determining unit, for according to the allocated dedicated channel information, determining allocated dedicated channel;

Fourth communication unit, for being communicated in the allocated dedicated channel with the network side.

Further, described device also includes:

Acquisition module, for obtaining random access channel configuration information from network side, and determine described to connect at random Enter channel.

Shown in Figure 3, the embodiment of the present invention also provides a kind of satellite communication system cut-in method, is applied to Network side, comprise the following steps:

Step 301:The Stochastic accessing for the only carried terminal mark that receiving terminal is sent on a random access channel Request;

Step 302:The terminal iidentification is authenticated;

Step 303:After authentication passes through, to terminal feedback random access request response.

The satellite communication system cut-in method of the embodiment of the present invention, by receiving terminal on a random access channel The random access request of the only carried terminal mark sent, is authenticated to the terminal iidentification, logical in authentication Later, to terminal feedback random access request response, the terminal is made to be asked according to the Stochastic accessing Response is asked, is communicated with the network side, the information content of random access request carrying can be simplified, from And resource overhead when reducing Stochastic accessing, improve the overall performance of satellite communication system.

Wherein, the random access request response optionally includes time adjustment information, frequency adjustment letter At least one of breath, physical address information and allocated dedicated channel information.

Shown in Figure 4, the embodiment of the present invention also provides a kind of satellite communication system access device, is applied to Network side, corresponding with the satellite communication system cut-in method shown in Fig. 3, described device includes:

Second receiving module 41, the only carried terminal mark sent on a random access channel for receiving terminal The random access request of knowledge;

Authentication module 42, for being authenticated to the terminal iidentification;

Feedback module 43, for after authentication passes through, being responded to terminal feedback random access request.

Wherein, the random access request response optionally includes time adjustment information, frequency adjustment letter At least one of breath, physical address information and allocated dedicated channel information.

Shown in Figure 5, the embodiment of the present invention also provides a kind of satellite communication system cut-in method, is applied to Satellite communication system, comprise the following steps:

Step 501:Terminal sends the random access request of only carried terminal mark on a random access channel;

Step 502:The only random access request of carried terminal mark, and to institute described in network side equipment reception State terminal iidentification to be authenticated, after authentication passes through, to terminal feedback random access request response;

Step 503:The terminal receives the random access request response, and please according to the Stochastic accessing Response is asked, is communicated with the network side equipment.

Corresponding, shown in Figure 6, the embodiment of the present invention also provides a kind of satellite communication system, including end End 61 and network side equipment 62, wherein,

The terminal 61 is used to send the random access request of only carried terminal mark on a random access channel, The random access request response that the network side equipment 62 feeds back is received, and according to the random access request Response, is communicated with the network side equipment 62;

The network side equipment 62 is used for the random access request for receiving the only carried terminal mark, and right The terminal iidentification is authenticated, and after authentication passes through, feeding back the Stochastic accessing to the terminal 61 please Ask response.

Below, the cut-in method of the present invention is illustrated by an instantiation.

It is shown in Figure 7, it is in satellite communication system, based on MF-TDMA (MultiFrequency Time Division Multiple Access, multi-frequency time division multiple access) access way reverse link running time-frequency resource structure Figure.In the figure 7, the running time-frequency resource of reverse link is divided into several superframes, i.e., superframe 0, superframe 1 ..., Superframe n, each superframe include 3 carrier waves (carrier wave 0, carrier wave 1 and carrier wave 2), and each carrier wave includes 10 Individual time slot, each superframe is interior, and time slot is numbered according to the order of time t and frequency f from small to large.Its In, time slot 0-28 is dedicated channel, and time slot 29 is RACH.Network side is matched somebody with somebody reverse resource Confidence breath notifies terminal by broadcasting table.

Example one:The time slot 29 that illegal terminal A gets each superframe from the broadcast table of network side is random Access channel;Illegal terminal A sends random access request on RACH (time slot 29), institute Stating random access request only includes illegal terminal A hardware ID;Network side equipment is to receiving illegal terminal A Hardware ID authenticated, after failed authentication, do not give illegal terminal A to send any information, it is illegal eventually End A can not access network.

Example two:The time slot 29 that legal terminal B and C gets each superframe from the broadcast table of network side is RACH;Legal terminal B and C sends random on RACH (time slot 29) simultaneously Access request, the random access request only include the hardware ID of each self terminal;Due to legal terminal B and C Random access request is sent on a RACH, it may occur that collision, therefore, network side is set simultaneously Standby solution does not go out the request transmitted by any one terminal, does not send any information to the two terminals.

After colliding, legal terminal B and C can randomly generate a time interval and resend Stochastic accessing Request, because the random access request only includes the hardware ID of terminal, comprising the information content it is seldom, So the expense of random access resource can be reduced.

Example three:The time slot 29 that legal terminal D gets each superframe from the broadcast table of network side is random Access channel;Legal terminal D sends random access request on RACH (time slot 29), institute Stating random access request only includes legal terminal D hardware ID;Network side equipment is to legal end for receiving End D hardware ID is authenticated, and after authentication passes through, feeds back random access request to the legal terminal D Response.

The random access request response may include time adjustment information, frequency adjustment information, physical address letter Breath and allocated dedicated channel information, while the legal terminal D can ring according to the random access request Should, the carrier frequency of time and transmission signal to local clock are corrected, to the route in communication process Selected, and based on the route after the time after correction and carrier frequency and selection, allocated special Communicated on channel with network side.

Because the random access request only includes the hardware ID of terminal, comprising the information content it is seldom, institute So that the expense of random access resource can be reduced.

Described above is only the preferred embodiment of the present invention, it is noted that for the common of the art For technical staff, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, These improvements and modifications also should be regarded as protection scope of the present invention.

Claims (20)

  1. A kind of 1. satellite communication system cut-in method, it is characterised in that applied to end side, including:
    The random access request of only carried terminal mark is sent on a random access channel;
    Receive the random access request response of network side feedback;
    Responded according to the random access request, communicated with the network side.
  2. 2. according to the method for claim 1, it is characterised in that the random access request response bag Include in time adjustment information, frequency adjustment information, physical address information and allocated dedicated channel information At least one.
  3. 3. according to the method for claim 2, it is characterised in that when the random access request responds It is described to be responded according to the random access request during including time adjustment information, led to the network side The step of letter, includes:
    According to the time adjustment information, the time of the local clock of terminal is corrected;
    Based on the time after correction, communicated with the network side.
  4. 4. according to the method for claim 2, it is characterised in that when the random access request responds It is described to be responded according to the random access request during including frequency adjustment information, led to the network side The step of letter, includes:
    According to the frequency adjustment information, the carrier frequency that signal is sent to terminal is corrected;
    Based on the carrier frequency after correction, communicated with the network side.
  5. 5. according to the method for claim 2, it is characterised in that when the random access request responds It is described to be responded according to the random access request during including physical address information, led to the network side The step of letter, includes:
    According to the physical address information, the route in terminal communication process is selected;
    Based on the route after selection, communicated with the network side.
  6. 6. according to the method for claim 2, it is characterised in that when the random access request responds It is described to be responded according to the random access request during including allocated dedicated channel information, with the network The step of side is communicated includes:
    According to the allocated dedicated channel information, allocated dedicated channel is determined;
    Communicated in the allocated dedicated channel with the network side.
  7. 7. according to the method for claim 1, it is characterised in that described to send out on a random access channel Before the step of sending the only random access request of carried terminal mark, methods described also includes:
    Random access channel configuration information is obtained from network side, and determines the RACH.
  8. A kind of 8. satellite communication system access device, it is characterised in that applied to end side, including:
    Sending module, for sending the random access request of only carried terminal mark on a random access channel;
    First receiving module, for receiving the random access request response of network side feedback;
    Communication module, for being responded according to the random access request, communicated with the network side.
  9. 9. device according to claim 8, it is characterised in that the random access request response bag Include in time adjustment information, frequency adjustment information, physical address information and allocated dedicated channel information At least one.
  10. 10. device according to claim 9, it is characterised in that when the random access request responds During including time adjustment information, the communication module includes:
    First correction unit, for according to the time adjustment information, entering to the time of the local clock of terminal Row correction;
    First communication unit, for based on the time after correction, being communicated with the network side.
  11. 11. device according to claim 9, it is characterised in that when the random access request responds During including frequency adjustment information, the communication module includes:
    Second correction unit, for according to the frequency adjustment information, the carrier frequency of signal to be sent to terminal It is corrected;
    Second communication unit, for based on the carrier frequency after correction, being communicated with the network side.
  12. 12. device according to claim 9, it is characterised in that when the random access request responds During including physical address information, the communication module includes:
    Selecting unit, for according to the physical address information, selecting the route in terminal communication process Select;
    Third communication unit, for based on the route after selection, being communicated with the network side.
  13. 13. device according to claim 9, it is characterised in that when the random access request responds During including allocated dedicated channel information, the communication module includes:
    Determining unit, for according to the allocated dedicated channel information, determining allocated dedicated channel;
    Fourth communication unit, for being communicated in the allocated dedicated channel with the network side.
  14. 14. device according to claim 8, it is characterised in that described device also includes:
    Acquisition module, for obtaining random access channel configuration information from network side, and determine described to connect at random Enter channel.
  15. A kind of 15. satellite communication system cut-in method, it is characterised in that applied to network side, including:
    The random access request for the only carried terminal mark that receiving terminal is sent on a random access channel;
    The terminal iidentification is authenticated;
    After authentication passes through, to terminal feedback random access request response.
  16. 16. according to the method for claim 15, it is characterised in that the random access request response Including in time adjustment information, frequency adjustment information, physical address information and allocated dedicated channel information At least one.
  17. A kind of 17. satellite communication system access device, it is characterised in that applied to network side, including:
    Second receiving module, the only carried terminal mark sent on a random access channel for receiving terminal Random access request;
    Authentication module, for being authenticated to the terminal iidentification;
    Feedback module, for after authentication passes through, being responded to terminal feedback random access request.
  18. 18. device according to claim 17, it is characterised in that the random access request response Including in time adjustment information, frequency adjustment information, physical address information and allocated dedicated channel information At least one.
  19. 19. a kind of satellite communication system cut-in method, it is characterised in that applied to satellite communication system, bag Include:
    Terminal sends the random access request of only carried terminal mark on a random access channel;
    The only random access request of carried terminal mark, and to the terminal iidentification described in network side equipment reception Authenticated, after authentication passes through, to terminal feedback random access request response;
    The terminal receives the random access request response, and is responded according to the random access request, with The network side equipment is communicated.
  20. A kind of 20. satellite communication system, it is characterised in that including terminal and network side equipment,
    The terminal is used to send the random access request of only carried terminal mark on a random access channel, connects The random access request response of the network side equipment feedback is received, and is responded according to the random access request, Communicated with the network side equipment;
    The network side equipment is used for the random access request for receiving the only carried terminal mark, and to described Terminal iidentification is authenticated, and after authentication passes through, is fed back the random access request to the terminal and is responded.
CN201610305880.2A 2016-05-10 2016-05-10 A kind of satellite communication system cut-in method and device, satellite communication system CN107360629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610305880.2A CN107360629A (en) 2016-05-10 2016-05-10 A kind of satellite communication system cut-in method and device, satellite communication system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610305880.2A CN107360629A (en) 2016-05-10 2016-05-10 A kind of satellite communication system cut-in method and device, satellite communication system
PCT/CN2017/081678 WO2017193806A1 (en) 2016-05-10 2017-04-24 Method and device for accessing satellite communication system, and satellite communication system

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WO2019205894A1 (en) * 2018-04-28 2019-10-31 中国移动通信有限公司研究院 Random access method, terminal, and network device

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