CN100361539C - Method for implementing transmission of information - Google Patents
Method for implementing transmission of information Download PDFInfo
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- CN100361539C CN100361539C CNB2004100970485A CN200410097048A CN100361539C CN 100361539 C CN100361539 C CN 100361539C CN B2004100970485 A CNB2004100970485 A CN B2004100970485A CN 200410097048 A CN200410097048 A CN 200410097048A CN 100361539 C CN100361539 C CN 100361539C
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- message transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
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Abstract
The present invention discloses a method for implementing information transmission, which comprises the following steps that A. a calling terminal sends out a signal for help so as to ask other wireless terminals in the system to assist the calling terminal in communication transmission with a called terminal; B. after receiving the signal for help and confirming that the wireless terminals have the ability to supply help for information transmission between the calling terminal and the called terminal, the wireless terminals in the system make a request for supplying help to the information transmission between the calling terminal and the called terminal through calling the calling terminal; C. after confirming the calling terminal which accepts the help, the wireless terminals distribute a time slot to establish a communication link between the calling terminal and the called terminal; then, the information transmission between the calling terminal and the called terminal is carried out through the distributed time slot. The present invention enlarges the covering range of network signals in a networking mode using a base station as a center, prolongs the connection distance between wireless terminals in an equivalent networking mode without centers, and realizes the information transmission in areas where signal coverage is not very good or where terminals have a long distance.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of method that realizes message transmission.
Background technology
When carrying out message transmission between wireless terminal, information transmitted can comprise voice messaging or data message.In the prior art, no matter information transmitted is a voice messaging, or data message, all need set up communication link between wireless terminal, carries out bidirectional data transfers.
When carrying out the voice messaging transmission, not only to send our voice messaging to the other side, but also will receive the other side's voice messaging, so need to carry out bidirectional data transfers between the wireless terminal.When carrying out data information transfer, owing to the existence of disturbing and declining, data message generally all can produce error code in the process of transmission, and the main mode that solves error code at present is to utilize redundancy, verification and repeating transmission etc.Such as data message being divided into several segments, each section intersects in the different frames and sends repeatedly, gets the synthetic complete information of the correct data of verification, if verification is incorrect, just notifies the other side's retransmission data, to guarantee the correct transmission of data message.Be to guarantee the correctness and the reliability of transfer of data, retransmit requisite for data information transfer, so when carrying out data information transfer, also need to carry out bidirectional data transfers between the wireless terminal.
In setting up the process of communication link, need between the wireless terminal to send and received signal by Random Access Channel (RACH).RACH is a common signal channel in the wireless communication system, and base station and all wireless terminals receive the signal of RACH in full sub-district, get in touch mutually all between base station and the wireless terminal or between all wireless terminals and will pass through RACH.
Because the difference of networking mode between the wireless terminal, the method for setting up communication link between the wireless terminal is also different.In existing wireless communication network system, the networking mode between the wireless terminal mainly contains two kinds: a kind of is to be the networking mode at center with the base station, and another kind is acentric peer-group net mode.
As shown in Figure 1, Fig. 1 is for being the networking mode schematic diagram at center with the base station between the wireless terminal.In this networking mode, wireless terminal is positioned at the network coverage of base station, for setting up the communication link between the wireless terminal, realize the message transmission between the wireless terminal, wireless terminal must communicate with the base station earlier, could set up communication link by other wireless terminals in base station and the network then.
As shown in Figure 2, Fig. 2 is an acentric peer-group net mode schematic diagram between the wireless terminal.In this networking mode, the wireless communication protocol by common support between the wireless terminal directly interconnects in the mode of equity, sets up the communication link between the wireless terminal.
Be in the networking mode at center with the base station, disperseing relatively and the less area of telephone traffic,, realizing the message transmission between the wireless terminal, often needing to improve the coverage of network in order between wireless terminal, successfully to set up communication link for some users.In order to improve the coverage of network, need to lay more base station or WAP (wireless access point), will significantly increase the construction cost of communication system like this, waste a large amount of Internet resources, very uneconomical in the area that the user disperses and telephone traffic is little.
In acentric peer-group net mode, because the success or not that the actual range between the wireless terminal is set up communication link is most important, in order between wireless terminal, successfully to set up communication link, realize the message transmission between the wireless terminal, often need to reduce the connection distance between the wireless terminal, to guarantee the effective interconnection between the wireless terminal.But, reduce the connection distance between the wireless terminal, limited the scope of application of wireless terminal again.For increasing the connection distance between the wireless terminal, enlarge the scope of application of wireless terminal, transmitting power that in actual design, often will exceed the quata for wireless terminal design or the modulation bandwidth that increases wireless terminal, to improve the ability that transmits and receives of wireless terminal, guarantee the effective interconnection in the regulation operating distance, so also certainly will significantly increase the production cost of wireless terminal itself, waste a large amount of Internet resources.
Summary of the invention
In view of this, subject matter to be solved by this invention is to provide a kind of method that realizes message transmission, and wireless network signal is covered in the defective region or between the terminal of apart from each other can carry out message transmission,
For addressing the above problem, the invention provides a kind of method that realizes message transmission, key is that this method may further comprise the steps at least:
A, calling terminal send help signal, require other wireless terminals in the system to assist this terminal and terminal called to carry out message transmission;
Wireless terminal in B, the system is received help signal, and confirm self can be for after the message transmission between calling terminal and the terminal called offers help, and is that message transmission between the calling and called terminal is offered help by calling out the calling terminal request;
C, wireless terminal are after definite calling terminal is accepted the help of self, and for the communication link of setting up between calling terminal and the terminal called distributes time slot, calling terminal and terminal called carry out message transmission by distributed time slot.
In the such scheme, information transmitted is voice messaging or data message between described calling terminal and the terminal called.When described calling terminal was the base station, terminal called was a wireless terminal; When described calling terminal was wireless terminal, terminal called was base station or wireless terminal.
In the such scheme, the calling terminal described in the steps A sends help signal and comprises: calling terminal sends help signal with interval continuously by Random Access Channel public in the network system.Described step C further comprises: calling terminal is accepted to stop to send help signal after the help of wireless terminal, and sends the signal of accepting its help to this wireless terminal.
In the such scheme, affirmation described in the step B self can be offered help for the message transmission between calling terminal and the terminal called and be comprised: wireless terminal is checked the signal quality of calling terminal and terminal called respectively, if the signal quality of calling terminal and terminal called is well, wireless terminal is then called out calling terminal by Random Access Channel public in the network system, for the message transmission of carrying out between calling terminal and the terminal called is offered help; If the signal quality of calling terminal and/or terminal called is bad, wireless terminal is then abandoned offering help process ends.
In the such scheme, wireless terminal described in the step C is that the communication link of setting up between calling terminal and the terminal called distributes time slot to comprise: wireless terminal is that the message transmission between calling terminal and the terminal called is distributed 4 time slots at least, the 1st time slot is used to receive transmitting of calling terminal, the 2nd time slot is used for being transmitted to terminal called with being received from transmitting of calling terminal, the 3rd time slot is used to receive the answer signal of terminal called, and the answer signal that the 4th time slot will be used for being received from terminal called is transmitted to calling terminal.When described information is data message, the described data message that transmits and send to terminal called into calling terminal, described answer signal is the control information that terminal called returns to calling terminal.
In the such scheme, described step C further comprises: in the process of message transmission, wireless terminal monitors the signal quality between self and calling terminal and the terminal called respectively, if signal quality variation, then get in touch other wireless terminals by Random Access Channel, and, carry out message transmission for the calling and called terminal and offer help by receiving other good wireless terminals replacements of calling and called terminal signaling and signal quality self simultaneously.
In the such scheme, this method further comprises after step C: calling terminal or terminal called notice wireless terminal, remove the communication link between calling terminal and the terminal called.
Therefore, the method of this realization message transmission provided by the invention by utilizing in the conventional network resources idling-resource with the current irrelevant wireless terminal of communicating by letter, makes it carry out radio relay communication, the communication between terminals link that requires communication is set up in success, assists to carry out message transmission between the terminal.Utilize the present invention, the zone of disperse relatively with the user at tdd systems, telephone traffic is less and amount of information is low, can make full use of the idling-resource of wireless terminal in the existing communication network, having improved is the coverage of network signal in the networking mode at center with the base station, increased the connection distance between the wireless terminal in the acentric peer-group net mode, reduced the construction cost of communication system and the production cost of wireless terminal itself, realized that wireless network signal covers in the defective region or the message transmission between the terminal of apart from each other.
Description of drawings
Fig. 1 is for being the networking mode schematic diagram at center with the base station between the wireless terminal;
Fig. 2 is an acentric peer-group net mode schematic diagram between the wireless terminal
Fig. 3 utilizes the schematic diagram of wireless terminal realization message transmission for calling terminal and terminal called;
Fig. 4 realizes the method flow diagram of message transmission overall technological scheme for the present invention;
Fig. 5 is according to the method flow diagram of realizing message transmission in a preferred embodiment of the present invention.
Embodiment
Core content of the present invention is: by utilizing in the conventional network resources idling-resource with the current irrelevant wireless terminal of communicating by letter, make it carry out radio relay communication, successfully set up the communication between terminals link that requires communication, assist to carry out message transmission between the terminal.
As shown in Figure 3, Fig. 3 utilizes the schematic diagram of wireless terminal realization message transmission for calling terminal and terminal called.In Fig. 3, calling terminal requires to set up communication link with terminal called, carries out message transmission.Cover bad zone owing to there is a terminal to be positioned at wireless network signal in calling terminal and the terminal called, perhaps because the distance between calling terminal and the terminal called is too far away, exceed effective connection distance between the two, can't directly set up communication link between calling terminal and the terminal called.And originally do not participate in communicating by letter between calling terminal and the terminal called, be positioned at network coverage zone or be positioned at the wireless terminal that calling terminal and terminal called effectively are connected distance separately preferably, have the time slot of free time to set up communication link with calling terminal and terminal called respectively.The present invention utilizes such wireless terminal, makes it set up communication link for calling terminal and terminal called radio relay communication is provided, and then set up the communication link between calling terminal and the terminal called, realizes the message transmission between calling terminal and the terminal called.
As shown in Figure 4, Fig. 4 realizes the method flow diagram of message transmission overall technological scheme for the present invention, and this flow chart may further comprise the steps:
Step 401: calling terminal sends help signal, requires other wireless terminals in the system to assist this terminal and terminal called to carry out message transmission;
Step 402: the wireless terminal in the system is received help signal, and confirm self can be for after the message transmission between calling terminal and the terminal called offers help, and is that message transmission between the calling and called terminal is offered help by calling out the calling terminal request;
Step 403: wireless terminal is after definite calling terminal is accepted the help of self, and for the communication link of setting up between calling terminal and the terminal called distributes time slot, calling terminal and terminal called carry out message transmission by distributed time slot.
By said method, can realize that wireless network signal covers in the defective region or the message transmission between the terminal of apart from each other.For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples, and with reference to accompanying drawing, the present invention is described in more detail.
Be in the networking mode at center with the base station, when calling terminal is a wireless terminal, when terminal called was the base station, wireless terminal was as caller, require to set up and the base station between communication link; When calling terminal is the base station, when terminal called was wireless terminal, the base station was as caller, require to set up and wireless terminal between communication link.
As shown in Figure 5, Fig. 5 is according to the method flow diagram of realizing message transmission in a preferred embodiment of the present invention.In the present embodiment, system is a tdd systems, and calling terminal is a wireless terminal 1, and terminal called is the base station, and this flow chart may further comprise the steps:
Step 501: wireless terminal 1 is called out the base station by RACH public in the communication system, requires to set up communication link with the base station, carries out transmission of Information.
Step 502: because the wireless terminal 1 present position network coverage is bad, perhaps wireless terminal 1 present position has exceeded the network coverage of base station, the not response of calling that send wireless terminal 1 base station, wireless terminal 1 can't be directly and the base station set up communication link, wireless terminal 1 just sends help signal by RACH public in the communication system, requires to carry out message transmission between other wireless terminal assist wireless 1 in the communication system and the base station;
This help signal is accepted will to be sent continuously with interval before other wireless terminals help at wireless terminal 1, till wireless terminal 1 is accepted help that other wireless terminals provide.
Step 503: after wireless terminal 2 is received the help signal of wireless terminal 1 by RACH public in the communication system, check the signal quality of wireless terminal 1, if signal quality is good, then execution in step 504; Otherwise, execution in step 505.
Step 504: wireless terminal 2 is called out the base station and is received the broadcast singal of base station, checks the signal of base station quality, if signal quality is good, then execution in step 506; Otherwise, execution in step 507.
Step 505: wireless terminal 2 is abandoned offering help, process ends.
Step 506: wireless terminal 2 is called out wireless terminal 1 by RACH, for the message transmission of carrying out between wireless terminal 1 and the base station is offered help.
Step 507: wireless terminal 2 is abandoned offering help, process ends.
Step 508: wireless terminal 1 is accepted wireless terminal 2 and is helped, and stops to send help signal, and sends the signal of accepting its help to wireless terminal 2.
Step 509: after wireless terminal 2 is received the signal of accepting its help of wireless terminal 1 transmission, for the communication link of setting up between wireless terminal 1 and the base station distributes 4 time slots at least, the 1st time slot is used to receive transmitting of wireless terminal 1, the 2nd time slot is used for being transmitted to the base station with being received from transmitting of wireless terminal 1, the 3rd time slot is used to receive the answer signal of base station, and the answer signal that the 4th time slot will be used for being received from the base station is transmitted to wireless terminal 1.
When needing to continue to carry out message transmission between wireless terminal 1 and the base station, the message transmission that wireless terminal 2 will be continuously between wireless terminal 1 and the base station is distributed time slot, till message transmission finishes.
Carry out in the process of message transmission at wireless terminal 1 and base station, wireless terminal 2 not only is responsible for transmitting information transmitted between wireless terminal 1 and the base station, can also further be responsible for monitoring that self respectively and the signal quality between wireless terminal 1 and the base station, if signal quality variation, then get in touch other wireless terminals by RACH, and, carry out message transmission for the calling and called terminal and offer help by receiving other good wireless terminals replacements of calling and called terminal signaling and signal quality self simultaneously.
Step 510: after message transmission finishes, the communication link that wireless terminal 1 or base station notice wireless terminal 2 are removed between wireless terminal 1 and the base station.
In above-mentioned preferred embodiment, after wireless terminal 2 is received the help signal of wireless terminal 1, be the signal quality of checking wireless terminal 1 earlier, reexamine the signal of base station quality.In actual applications, wireless terminal 2 checks that wireless terminal 1 and signal of base station quality do not have sequencing, can check simultaneously, also can check the signal of base station quality earlier, reexamines the signal quality of wireless terminal 1.No matter adopt which kind of mode to check, its essence and technical scheme provided by the invention are identical, can both realize purpose of the present invention.
Information transmitted can be a voice messaging between wireless terminal 1 and base station, also can be data message.When information transmitted is voice messaging, the voice messaging that transmits and send to the base station in the step 509 for wireless terminal 1, answer signal is the voice messaging that the base station is returned to wireless terminal 1; When information transmitted is data message, the data message that transmits and send to the base station in the step 509 for wireless terminal 1, answer signal is the control information that the base station is returned to wireless terminal 1, requires wireless terminal 1 to resend the information of data message when damaging such as packet.In addition, when information transmitted was data message, wireless terminal 2 is storing data information temporarily, and its effect is similar to the short message service center in the communication system.
Be in the networking mode at center with the base station, if calling terminal is the base station, terminal called is a wireless terminal, it is bad to work as the network coverage of wireless terminal present position so, when perhaps the wireless terminal present position has exceeded the network coverage of base station, the method and the method in the foregoing description that realize message transmission between base station and the wireless terminal are on all four, just repeat no more here.
In addition, in acentric peer-group net mode, calling terminal and terminal called are wireless terminal all, and the two is caller each other.Distance between calling terminal and terminal called is too far away, exceeded effective connection distance between the two, in the time of can't directly setting up communication link between calling terminal and the terminal called, for setting up the communication link between the wireless terminal, realize message transmission between the wireless terminal, can utilize said method equally, by what originally do not participate in communicating by letter between calling terminal and the terminal called, be positioned at the wireless terminal that calling terminal and terminal called effectively are connected distance separately, utilize idle time slot to set up communication link with calling terminal and terminal called respectively, assist to carry out message transmission between calling terminal and the terminal called.Method in this method and the foregoing description is in full accord, also repeats no more here.
In technical scheme provided by the invention, wireless terminal can be the PC (PC) in mobile phone, portable machine, vehicle mounted communication equipment, PDA(Personal Digital Assistant), information household appliances or the WLAN (wireless local area network) etc.The wireless terminal that is used to offer help might not be in idle condition, as long as wireless terminal has idle time slot, can offer help for calling terminal and terminal called carry out message transmission, and the realization goal of the invention gets final product.In addition, wireless terminal among the present invention is when offering help for the message transmission between calling terminal and the terminal called, need take the resource of a plurality of time slots, so the present invention is applicable to the zone that tdd systems disperses relatively with the user, telephone traffic is less and amount of information is lower more, such as field work, tunnel communication, some private network or information household appliances etc., but be not limited to this.
From top embodiment as can be seen, the method of this realization message transmission provided by the invention, by utilizing in the conventional network resources idling-resource with the current irrelevant wireless terminal of communicating by letter, make it carry out radio relay communication, the communication between terminals link that requires communication is set up in success, assists to carry out message transmission between the terminal.Utilize the present invention, the zone of disperse relatively with the user at tdd systems, telephone traffic is less and amount of information is low, can make full use of the idling-resource of wireless terminal in the existing communication network, having improved is the coverage of network signal in the networking mode at center with the base station, increased the connection distance between the wireless terminal in the acentric peer-group net mode, reduced the construction cost of communication system and the production cost of wireless terminal itself, realized that wireless network signal covers in the defective region or the message transmission between the terminal of apart from each other.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of method that realizes message transmission is characterized in that, this method may further comprise the steps at least:
A, calling terminal send help signal, require other wireless terminals in the system to assist this terminal and terminal called to carry out message transmission;
Wireless terminal in B, the system is received help signal, and confirm self can be for after the message transmission between calling terminal and the terminal called offers help, and is that message transmission between the calling and called terminal is offered help by calling out the calling terminal request;
C, wireless terminal are after definite calling terminal is accepted the help of self, and for the communication link of setting up between calling terminal and the terminal called distributes time slot, calling terminal and terminal called carry out message transmission by distributed time slot.
According to the method for the described realization message transmission of claim 1, it is characterized in that 2, information transmitted is voice messaging or data message between described calling terminal and the terminal called.
According to the method for the described realization message transmission of claim 1, it is characterized in that 3, when described calling terminal was the base station, terminal called was a wireless terminal; When described calling terminal was wireless terminal, terminal called was base station or wireless terminal.
According to the method for the described realization message transmission of claim 1, it is characterized in that 4, the calling terminal described in the steps A sends help signal and comprises:
Calling terminal sends help signal with interval continuously by Random Access Channel public in the network system.
According to the method for the described realization message transmission of claim 4, it is characterized in that 5, described step C further comprises:
Calling terminal is accepted to stop to send help signal after the help of wireless terminal, and sends the signal of accepting its help to this wireless terminal.
According to the method for the described realization message transmission of claim 1, it is characterized in that 6, the affirmation described in the step B self can be offered help for the message transmission between calling terminal and the terminal called and be comprised:
Wireless terminal is checked the signal quality of calling terminal and terminal called respectively, if the signal quality of calling terminal and terminal called is well, wireless terminal is then called out calling terminal by Random Access Channel public in the network system, for the message transmission of carrying out between calling terminal and the terminal called is offered help; If the signal quality of calling terminal and/or terminal called is bad, wireless terminal is then abandoned offering help process ends.
According to the method for the described realization message transmission of claim 1, it is characterized in that 7, the wireless terminal described in the step C is that the communication link of setting up between calling terminal and the terminal called distributes time slot to comprise:
Wireless terminal is that the message transmission between calling terminal and the terminal called is distributed 4 time slots at least, the 1st time slot is used to receive transmitting of calling terminal, the 2nd time slot is used for being transmitted to terminal called with being received from transmitting of calling terminal, the 3rd time slot is used to receive the answer signal of terminal called, and the answer signal that the 4th time slot will be used for being received from terminal called is transmitted to calling terminal.
8, according to the method for the described realization message transmission of claim 7, it is characterized in that, when described information is data message, the described data message that transmits and send to terminal called into calling terminal, described answer signal is the control information that terminal called returns to calling terminal.
According to the method for the described realization message transmission of claim 1, it is characterized in that 9, described step C further comprises:
In the process of message transmission, wireless terminal monitors the signal quality between self and calling terminal and the terminal called respectively, if signal quality variation, then get in touch other wireless terminals by Random Access Channel, and, carry out message transmission for the calling and called terminal and offer help by receiving other good wireless terminals replacements of calling and called terminal signaling and signal quality self simultaneously.
According to the method for the described realization message transmission of claim 1, it is characterized in that 10, this method further comprises after step C:
Calling terminal or terminal called notice wireless terminal are removed the communication link between calling terminal and the terminal called.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100970485A CN100361539C (en) | 2004-12-21 | 2004-12-21 | Method for implementing transmission of information |
| PCT/CN2005/002140 WO2006066487A1 (en) | 2004-12-21 | 2005-12-09 | Method and system for implementing information transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100970485A CN100361539C (en) | 2004-12-21 | 2004-12-21 | Method for implementing transmission of information |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1798354A CN1798354A (en) | 2006-07-05 |
| CN100361539C true CN100361539C (en) | 2008-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100970485A Expired - Fee Related CN100361539C (en) | 2004-12-21 | 2004-12-21 | Method for implementing transmission of information |
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| Country | Link |
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| CN (1) | CN100361539C (en) |
| WO (1) | WO2006066487A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120196550A1 (en) * | 2011-02-01 | 2012-08-02 | I O Interconnect, Ltd. | Apparatus for vehicle and signal processing method |
| US9743218B2 (en) | 2012-11-07 | 2017-08-22 | Nokia Technologies Oy | Proxy connection method and apparatus |
| WO2014161164A1 (en) * | 2013-04-03 | 2014-10-09 | 富士通株式会社 | Method and apparatus for establishing communication in emergency situation |
| CN104981016B (en) * | 2015-04-23 | 2019-02-01 | 四川海格恒通专网科技有限公司 | A kind of link channel distribution method of Radio Link |
| CN105182828B (en) * | 2015-09-18 | 2018-09-07 | 深圳前海达闼科技有限公司 | Method and equipment for requesting assistance by equipment and responding to request for assistance by equipment |
| CN113098600A (en) * | 2020-01-09 | 2021-07-09 | 武汉邮电科学研究院有限公司 | 6G network floodlight communication architecture constructed based on 6G photonics |
| CN111844024A (en) * | 2020-06-30 | 2020-10-30 | 深圳优地科技有限公司 | Robot fault processing method and device, intelligent equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998005172A1 (en) * | 1996-07-25 | 1998-02-05 | Nokia Telecommunications Oy | Cell expansion in a time division cellular system using frequency converting repeaters |
| CN1255261A (en) * | 1997-03-03 | 2000-05-31 | 萨尔布研究及发展私人有限公司 | Enhanced cellular communication system |
| CN1551532A (en) * | 2003-05-20 | 2004-12-01 | 松下电工株式会社 | Wireless relay device and wireless relay method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI97503C (en) * | 1995-01-12 | 1996-12-27 | Nokia Telecommunications Oy | Relay tone in a mobile communication network |
| JP3430057B2 (en) * | 1999-02-03 | 2003-07-28 | 松下電器産業株式会社 | Wireless communication system |
-
2004
- 2004-12-21 CN CNB2004100970485A patent/CN100361539C/en not_active Expired - Fee Related
-
2005
- 2005-12-09 WO PCT/CN2005/002140 patent/WO2006066487A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998005172A1 (en) * | 1996-07-25 | 1998-02-05 | Nokia Telecommunications Oy | Cell expansion in a time division cellular system using frequency converting repeaters |
| CN1255261A (en) * | 1997-03-03 | 2000-05-31 | 萨尔布研究及发展私人有限公司 | Enhanced cellular communication system |
| CN1551532A (en) * | 2003-05-20 | 2004-12-01 | 松下电工株式会社 | Wireless relay device and wireless relay method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1798354A (en) | 2006-07-05 |
| WO2006066487A1 (en) | 2006-06-29 |
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