CN101657002A - Mobile station and its communicating system and communicating system - Google Patents
Mobile station and its communicating system and communicating system Download PDFInfo
- Publication number
- CN101657002A CN101657002A CN200910007313A CN200910007313A CN101657002A CN 101657002 A CN101657002 A CN 101657002A CN 200910007313 A CN200910007313 A CN 200910007313A CN 200910007313 A CN200910007313 A CN 200910007313A CN 101657002 A CN101657002 A CN 101657002A
- Authority
- CN
- China
- Prior art keywords
- ping
- base station
- scan channel
- address
- authentication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The object of the invention is to provide a mobile station and its communicating system capable of shortening speech interruption interval during switching, and a communicating system. The mobile station is a mobile station (IP phone terminal 100) processing wireless communication with the base station (AP1, 2, 3), characterized by having: a search module, which scans the channel, wherein the channel scanning is used to search for the switching destination base station to communicate; and a PING transmission unit, which sends a PING to the default gateway, through the base station searched bythe channel scanning, uses the obtained IP address for performing wireless communication, in the absence of an answer to the PING in the presence of an answer to the PING, and uses the IP address acquire renewedly from the DHCP server through the base station searched by the channel scanning to perform wireless communication in the absence of an answer to the PING.
Description
Technical field
The present invention relates to carry out the switching of the mobile radio station of radio communication with the base station.
Background technology
At present, the network system (for example, with reference to patent documentation 1) of the known IP phone terminal formation that can be connected with the LAN in the remote environment that has used DHCP (Dynamic Host Configuration Protocol).In patent documentation 1, following content is disclosed: even at the router of the main website that is made of system control device and Dynamic Host Configuration Protocol server with in by the connection between the router that backs up the distant station that constitutes with system control device and IP phone terminal fault has taken place, also can be by in the IP phone terminal, preserving last time from the IP address that Dynamic Host Configuration Protocol server is obtained, the IP address of using the IP phone terminal to preserve is connected with system control device with backup.
On the other hand, known following technology (switching): in mobile communication system, carry out radio communication, suitably switch the base station (for example, with reference to patent documentation 2) that connects in order to make higher base station of incoming level and mobile radio station with base station and mobile radio station.
[patent documentation 1] spy opens the 2006-217094 communique
[patent documentation 2] spy opens the 2004-56509 communique
Summary of the invention
But, correctly carry out the transmitting-receiving of data between the base station of the network address that mobile radio stations such as IP phone terminal can't be different with the network segment (segment).Therefore, do not know that in mobile radio station one side the network address of handover destination base station is under the same network segment or the situation of different segment, can't correctly carry out the transmitting-receiving of data in order to prevent because the network segment of the network address of handover destination base station is different, mobile radio station must be obtained the IP address from Dynamic Host Configuration Protocol server once more.But, need the time owing to obtain the IP address again, so group of voice data during this period can't arrive, the time of voice interruption is elongated.
Therefore, the object of the present invention is to provide a kind of mobile radio station and the changing method and communication system that can shorten the time of voice interruption when switching.
To achieve these goals, mobile radio station of the present invention is the mobile radio station that carries out radio communication with the base station, it is characterized by to have: search unit, and it carries out scan channel, and this scan channel is used to search for the handover destination base station that can communicate by letter; And PING transmitting element, it is via the base station that searches by described scan channel, send PING to default gateway, when having at the replying of described PING, use the IP address of having obtained to carry out radio communication, not at the replying of described PING the time, use and carry out radio communication from the IP address that Dynamic Host Configuration Protocol server is obtained again via the base station that searches by described scan channel.
At this, mobile radio station of the present invention has the authentication data transmission unit, it sends the authentication data to the base station that searches by described scan channel, and described PING transmitting element sends PING after the authentication that sends with data transmission unit based on described authentication is set up with the authentication of data.
To achieve these goals, changing method of the present invention is the changing method that carries out the mobile radio station of radio communication with the base station, it is characterized by and have following step: search step, it carries out scan channel, and this scan channel is used to search for the handover destination base station that can communicate by letter; The PING forwarding step via the base station that searches by described scan channel, sends PING to default gateway; The first radio communication step when having at the replying of described PING, uses the IP address of having obtained to carry out radio communication; And the second radio communication step, not at the replying of described PING the time, use and carry out radio communication from the IP address that Dynamic Host Configuration Protocol server is obtained again via the base station that searches by described scan channel.
In changing method of the present invention, after the authentication that sends to the base station that searches by described scan channel based on mobile radio station is set up with the authentication of data, carry out described PING forwarding step herein.
To achieve these goals, communication system of the present invention has mobile radio station, can carry out a plurality of base stations and the Dynamic Host Configuration Protocol server of radio communication with described mobile radio station, it is characterized by and have: search unit, it carries out scan channel, and this scan channel is used to search for the handover destination base station that can communicate with described mobile radio station; And PING transmitting element, it is via the base station that searches by described scan channel, send PING to default gateway, described mobile radio station is when having at the replying of described PING, use the IP address of having obtained to carry out radio communication, not at the replying of described PING the time, use and carry out radio communication from the IP address that Dynamic Host Configuration Protocol server is obtained again via the base station that searches by described scan channel.
At this, communication system of the present invention has the authentication data transmission unit, it sends the authentication data to the base station that searches by described scan channel, and described PING transmitting element sends PING after the authentication that sends with data transmission unit based on described authentication is set up with the authentication of data.
According to the present invention, can shorten the time of the voice interruption when switching.
Description of drawings
Fig. 1 is the overall structure figure of the communication system 100 of embodiment of the present invention.
Fig. 2 is the block diagram of structure of the IP phone terminal 100 of embodiment of the present invention.
Fig. 3 has been to use the transfer sequence of PING message.
Fig. 4 is based on the transfer sequence of APR instruction.
Fig. 5 is to use the transfer sequence of DISCOVER message.
Symbol description
1,2,3 access points (AP)
10,20 communication lines
11,21SIP server
12,22DHCP server
14,24 routers (default gateway)
The 100IP telephone terminal
Embodiment
Below, describe realization preferred forms of the present invention in detail with reference to accompanying drawing.Fig. 1 is the overall structure figure of the communication system 100 of embodiment of the present invention.In communication system 100, constituted as the IP phone terminal 100 of the execution mode of mobile radio station of the present invention and as the access point (AP) that can carry out a plurality of base stations of radio communication with IP phone terminal 100.Communication system 100 is made of different mutually two networks (sub-network) of the network segment of the network address of IP address.The 1st network A is connected via each router one 4,24 with the 2nd network B.In addition, the quantity of the different network of the network segment can be for more than 3.
Network A constitutes Dynamic Host Configuration Protocol server 12, one or two above access points (in Fig. 1 example AP1, AP2) and router one 4.Dynamic Host Configuration Protocol server 12, AP1, AP2 and router one 4 interconnect via communication line 10.
Similarly, network B constitutes Dynamic Host Configuration Protocol server 22, one or two above access point (example AP3 in Fig. 1) and router twos 4.Dynamic Host Configuration Protocol server 22, AP3 and router two 4 interconnect via communication line 20.
Dynamic Host Configuration Protocol server the 12, the 22nd, the automatically address management apparatus of distributing IP address.AP1,2, the 3rd is separated from each other configuration, the base station that is connected with IP phone terminal 100 by WLAN.Router one the 4, the 24th interconnects the communication equipment between network A and the network B.In router one 4,24, default gateway is installed.Default gateway can not be installed in the router, and is installed in other the main frame, for example can be installed in the Dynamic Host Configuration Protocol server.In addition, can on the communication line 20 of the communication line 10 of each network A and network B, be connected with the server that sip server etc. is called out control.
Then, action when switching is described.
Fig. 5 is to use the transfer sequence of DISCOVER message.Receive when bad when having produced when wireless terminal and AP1 carry out the transmitting-receiving of speech data, wireless terminal begins to switch.Wireless terminal is carried out scan channel in order to search for the AP that can communicate with self.Wireless terminal sends probe request signal in scan channel is handled.Wireless terminal is discerned the AP that existence can communicate with self according to receiving from the conduct of the AP probe response signal at the answer signal of probe request signal.Wireless authentication between the AP2 that wireless terminal carries out searching with the AP that can communicate by letter by the scan channel conduct.
Because wireless terminal can't learn that in this moment AP2 and self are the identical network segment or the different network segments, so in order to prevent to produce owing to the different communications that cause with the network segment of self of the network segment of AP2 are bad, after this wireless authentication is set up, again give the IP address from Dynamic Host Configuration Protocol server, therefore use broadcast address to send the DISCOVER order.The Dynamic Host Configuration Protocol server that receives DISCOVER message sends the OFFER message of the candidate that is used to provide assignable IP address to wireless terminal.The wireless terminal that receives OFFER message is in the candidate that is judged to be the IP address that comprises in can be with OFFER message during as its own IP address, by broadcast transmission REQUEST message.The Dynamic Host Configuration Protocol server that receives REQUEST message be the formal IP address of this wireless terminal with the candidate decision of this IP address, sends the ACK message of conduct at the answer signal of REQUEST message.The wireless terminal that receives ACK message sends REGISTER message for to sip server request login oneself to sip server, and sip server sends " 200OK " of conduct at the answer signal of REGISTER message.
But Fig. 5 is such to need hundreds of milliseconds to the several seconds with data transmit-receive Dynamic Host Configuration Protocol server usually, so because the interruption of group of voice data transmitting-receiving, the asonant time is elongated.But, when considering the practical application of Wireless IP telephone unit, because moving in the conversation is that in-plant situation is more, the frequency height that switches between the AP in being in the same network segment is not so need to use DISCOVER message more to the situation that the Dynamic Host Configuration Protocol server request obtains the IP address again.Therefore, whether be the different network segments if can know mobile destination network, can shorten the dropped calls time when switching.
Therefore, wireless terminal begins the receiving and transmitting voice data set after the wireless authentication that is through with via the base station of switching the destination before, send PING via the base station of switching the destination to default gateway, when having at the replying of PING, the base station that is judged to be this switching destination with own be the same network segment.After being judged to be the same network segment, confirm the lease time of IP address, lease time of IP address less than the time, directly use current IP address to finish switching apace, can shorten the dropped calls time thus.On the other hand, under at the overtime situation of replying of PING, the base station that is judged as this switching destination is the network segment different with self, obtains the IP address again from Dynamic Host Configuration Protocol server, can use this IP address of obtaining again to switch.Under the time-up situation of the lease of IP address,, begin to carry out from obtaining the IP address again with identical at the overtime situation of replying of PING.Even because the fault of wireless path etc. are not replied PING data set (even overtime),, can not become fatal fault during the switching in carrying out the same network segment as long as begin to reform from obtaining the IP address again.
Fig. 2 is the block diagram of structure of the IP phone terminal 100 of embodiment of the present invention.IP phone terminal 100 has search unit 110, authentication data transmission unit 120, PING transmitting element 130 and speech data transmitting element 140.Search unit 110 along with communicate by letter in the reduction of incoming level of base station, be used to search for the scan channel of the handover destination base station that can communicate.Authentication sends the authentication data with data transmission unit 120 to the base station that searches by scan channel.PING transmitting element 130 via the base station that searches by scan channel, sends PING to default gateway after the authentication that sends with data transmission unit 120 based on authentication is set up with the authentication of data.Speech data transmitting element 140 is when having the replying of the PING that sends at PING transmitting element 130, use and speech data is carried out radio communication from the IP address that Dynamic Host Configuration Protocol server is obtained, when the replying of the PING that does not send at PING transmitting element 130, use following IP address that speech data is carried out radio communication, this IP address is via the base station that searches by scan channel, from the IP address that Dynamic Host Configuration Protocol server is obtained again.For example, microcomputer has search unit 110, authenticates the function with data transmission unit 120, PING transmitting element 130 and speech data transmitting element 140.
Fig. 3 has been to use the transfer sequence of PING message.Up to AP2 between wireless authentication till order identical with the situation of above-mentioned Fig. 5, therefore omit explanation.
So, IP phone terminal 100 (for example the IP address is " 192.168.12.20 ") sends PING, has when replying from default gateway, be judged as scan channel to AP and this default gateway be the network segment identical with self (for example, under the situation of Fig. 1, the IP address is that the AP2 and the IP address of " 192.168.12.20 " is the default gateway 14 of " 192.168.12.1 ").After being judged as the same network segment, confirm the lease time of IP address, if the lease time of IP address less than, then the direct current IP address of use is finished switching fast, can shorten the dropped calls time thus.On the contrary, replying not from the PING of default gateway, under the overtime situation, can be judged as scan channel to AP and this default gateway be the network segment different with self (for example, under the situation of Fig. 1, the IP address is the AP3 of " 192.168.13.30 " and the IP address default gateway 24 for " 192.168.13.1 "), again obtain IP address via AP3 from Dynamic Host Configuration Protocol server 22 by broadcasting, use this IP address of obtaining again to finish switching with AP3.Under the time-up situation of the lease of IP address,, begin to carry out from obtaining the IP address again with identical at the overtime situation of replying of PING.
So, the transmitting-receiving by PING with compare by the transmitting-receiving of DISCOVER message, call duration time is short, finishes with tens of milliseconds usually, the break period of the group of voice data transmitting-receiving in the time of therefore can suppressing to switch, makes restarting in advance of group of voice data transmitting-receiving.
In addition, generally do not have object and use PING (for example, is displaced sideways station one side and sends PING from the base station), but in the present embodiment, in order to confirm self to belong to which network, mobile radio station sends PING to the base station in order to be confirmed to be.That is, in the present embodiment, can also confirm normally to have established communication according to the establishment of wireless authentication.By after wireless authentication is established, sending PING, do not wait for the establishment and the communication acknowledgement of wireless authentication, the advantage of the transmitting-receiving time of performance PING can realize switching fast according to having or not at the replying of PING.
In addition, large-scale system is because the AP or the WLAN switch (controller) of exploitation unique criteria, cause the cost of corresponding device to rise, but according to present embodiment, can not use the WLAN switch of high price, and use cheap general AP, no matter the therefore size of scale, can be implemented in and shorten voice interruption in the time of the time, can finish the communication system of switching fast.In addition, from aspect the software,, can easily be installed in the Wireless IP telephone, so the cost performance height owing to the PING function that is standard does not need to develop.
More than, describe the preferred embodiments of the present invention in detail, but the present invention is not limited to the foregoing description, in the case without departing from the scope of protection of the present invention, can carry out various changes and displacement to the foregoing description.
For example, Fig. 4 is based on the transfer sequence of ARP (Address Resolution Protocol) order.Reply fast ARP order by using, can further shorten the dropped calls time than PING.
That is, when switching, send ARP to default gateway, when having, do not change ground, IP address and send voice image datas such as RTP (Real-time Transport Protocol) data set its reply via switching destination AP.Then, send the PING data set, have the moment of replying to default gateway address, finally be judged as AP that scan channel arrives and this default gateway with from as the same network segment, finish hand-off process.Thus, can wait for that PING responsively restarts the transmission of RTP data set, so can shorten the dropped calls time.In addition, send the PING order sending ARP order back, even if thus just in case be the different network segments, even replied replying of ARP, but can be by confirming to judge definitely that at the replying of PING the network segment is identical or difference.
In addition, for example can on the communication line 10 of network A, connect radius server.Radius server is and the corresponding certificate server of radius protocol.For example, wireless terminal via by scan channel as the AP2 that the AP that can communicate by letter searches, carry out with and AP2 be wireless authentication between the radius server of same network segment mutually.
Claims (6)
1. mobile radio station, radio communication is carried out in itself and base station, it is characterized in that,
Possess: search unit, it carries out scan channel, and this scan channel is used to search for the handover destination base station that can communicate by letter; And
The PING transmitting element, it sends PING via the base station that searches by described scan channel to default gateway,
When having at the replying of described PING, use the IP address of having obtained to carry out radio communication,
Not at the replying of described PING the time, use and carry out radio communication from the IP address that Dynamic Host Configuration Protocol server is obtained again via the base station that searches by described scan channel.
2. mobile radio station according to claim 1 is characterized in that,
Have the authentication data transmission unit, it sends the authentication data to the base station that searches by described scan channel,
Described PING transmitting element sends PING after the authentication that sends with data transmission unit based on described authentication is set up with the authentication of data.
3. a changing method is the changing method that carries out the mobile radio station of radio communication with the base station, it is characterized in that,
Have: search step, it carries out scan channel, and this scan channel is used to search for the handover destination base station that can communicate by letter;
The PING forwarding step via the base station that searches by described scan channel, sends PING to default gateway;
The first radio communication step when having at the replying of described PING, uses the IP address of having obtained to carry out radio communication; And
The second radio communication step not at the replying of described PING the time, is used and is carried out radio communication via the base station that searches by described scan channel from the IP address that Dynamic Host Configuration Protocol server is obtained again.
4. changing method according to claim 3 is characterized in that,
After the authentication that sends to the base station that searches by described scan channel based on mobile radio station is set up with the authentication of data, carry out described PING forwarding step.
5. communication system, it has mobile radio station, can carry out a plurality of base stations and the Dynamic Host Configuration Protocol server of radio communication with described mobile radio station, it is characterized in that,
Possess: search unit, it carries out scan channel, and this scan channel is used to search for the handover destination base station that can communicate with described mobile radio station; And
The PING transmitting element, it sends PING via the base station that searches by described scan channel to default gateway,
Described mobile radio station uses the IP address of having obtained to carry out radio communication when having at the replying of described PING,
Not at the replying of described PING the time, use and carry out radio communication from the IP address that described Dynamic Host Configuration Protocol server is obtained again via the base station that searches by described scan channel.
6. communication system according to claim 5 is characterized in that,
Have the authentication data transmission unit, it sends the authentication data to the base station that searches by described scan channel,
Described PING transmitting element sends PING after the authentication that sends with data transmission unit based on described authentication is set up with the authentication of data.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-214184 | 2008-08-22 | ||
| JP2008214184A JP4539768B2 (en) | 2008-08-22 | 2008-08-22 | Mobile station, handover method thereof, and communication system |
| JP2008214184 | 2008-08-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101657002A true CN101657002A (en) | 2010-02-24 |
| CN101657002B CN101657002B (en) | 2012-12-12 |
Family
ID=41711021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910007313.9A Expired - Fee Related CN101657002B (en) | 2008-08-22 | 2009-02-11 | Mobile station and communicating system and communicating system thereof |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4539768B2 (en) |
| CN (1) | CN101657002B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827132A (en) * | 2010-04-14 | 2010-09-08 | 四川真视信息技术有限公司 | Dynamic webpage distributed server system |
| CN103024226A (en) * | 2012-12-10 | 2013-04-03 | 深圳市共进电子股份有限公司 | Data communication method and communication terminal |
| CN105282733A (en) * | 2014-06-11 | 2016-01-27 | 三星电子株式会社 | Electronic device and network connection method of electronic device |
| CN105763661A (en) * | 2014-12-17 | 2016-07-13 | 华为技术有限公司 | Network protocol IP address obtaining method and communication equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200630B (en) * | 2012-01-10 | 2016-07-06 | 华为终端有限公司 | A kind of method for switching network, gateway and terminal |
| CN105704261B (en) * | 2012-02-03 | 2019-03-29 | 联想(北京)有限公司 | A kind of method of settling IP address conflict, electronic equipment and computer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3793193B2 (en) * | 2003-10-20 | 2006-07-05 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile terminal and mobile terminal control method |
| KR100962647B1 (en) * | 2003-10-27 | 2010-06-11 | 삼성전자주식회사 | Method for supporting mobility of mobile terminal and system thereof |
| JP2005277537A (en) * | 2004-03-23 | 2005-10-06 | Mitsubishi Electric Corp | Wireless ip communication terminal and ip communication control method |
| CN1949727A (en) * | 2005-10-12 | 2007-04-18 | 北京邮电大学 | Method for implementing seamless switching by preconfiguration mobile IPv6 mobile node transmitting address |
| JP2007194848A (en) * | 2006-01-18 | 2007-08-02 | Mitsubishi Electric Corp | Mobile radio terminal authentication method of wireless lan system |
| CN100593929C (en) * | 2007-08-21 | 2010-03-10 | 中国科学院计算技术研究所 | Mobile switch method of wireless packet network |
-
2008
- 2008-08-22 JP JP2008214184A patent/JP4539768B2/en not_active Expired - Fee Related
-
2009
- 2009-02-11 CN CN200910007313.9A patent/CN101657002B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827132A (en) * | 2010-04-14 | 2010-09-08 | 四川真视信息技术有限公司 | Dynamic webpage distributed server system |
| CN101827132B (en) * | 2010-04-14 | 2012-10-03 | 四川真视信息技术有限公司 | Dynamic webpage distributed server system |
| CN103024226A (en) * | 2012-12-10 | 2013-04-03 | 深圳市共进电子股份有限公司 | Data communication method and communication terminal |
| CN103024226B (en) * | 2012-12-10 | 2015-04-15 | 深圳市共进电子股份有限公司 | Data communication method and communication terminal |
| CN105282733A (en) * | 2014-06-11 | 2016-01-27 | 三星电子株式会社 | Electronic device and network connection method of electronic device |
| CN105763661A (en) * | 2014-12-17 | 2016-07-13 | 华为技术有限公司 | Network protocol IP address obtaining method and communication equipment |
| CN105763661B (en) * | 2014-12-17 | 2019-02-01 | 华为技术有限公司 | A kind of acquisition methods and communication equipment of network protocol IP address |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4539768B2 (en) | 2010-09-08 |
| CN101657002B (en) | 2012-12-12 |
| JP2010050819A (en) | 2010-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4754146B2 (en) | Wireless private branch exchange (WPBX) and communication between mobile unit and base station | |
| US8605600B2 (en) | Wireless communication system, access point, controller, network management device, and method of setting network identifier of access point | |
| CN101657002B (en) | Mobile station and communicating system and communicating system thereof | |
| JP5170105B2 (en) | Mobile communication system location / route registration update procedure | |
| EP2026621A2 (en) | Method and apparatus for providing neighborhood AP information in a wireless LAN system | |
| US9980215B2 (en) | System and method for access point selection with evolved packet data gateway | |
| CN108012311A (en) | A kind of method of smart machine automatic switchover configuration router | |
| US9241288B2 (en) | Method for changing the wireless access point associated with a terminal in a WiFi-DECT wireless telecommunications network | |
| JP2009533890A (en) | High speed link down detection system and method | |
| CN101640882A (en) | Method and device for preventing flow from breaking | |
| CN1826013A (en) | Mobile support method of wireless network | |
| KR20130036861A (en) | Mobile terminal and method for executing handoff thereof | |
| US8902857B2 (en) | Method of performing handoffs in wireless local area networks | |
| US20050159149A1 (en) | Network mobile communication device | |
| CN103987098A (en) | Method and system for switching between IPV4 network and IPV6 network | |
| US20170142646A1 (en) | Hunting and scanning across lmr and ip networks | |
| CN108966203A (en) | User equipment and synchronous method | |
| US20100159925A1 (en) | Method and system for retry of packet data calls | |
| JP5334202B2 (en) | Communication relay device, communication relay method, communication relay program | |
| CN101208910A (en) | Apparatus and method for performing fast handover | |
| JP2002218524A (en) | Wireless terminal and wireless base station switching method | |
| JP2005277537A (en) | Wireless ip communication terminal and ip communication control method | |
| JP2012039584A (en) | Wireless lan connection authentication proxy device, wireless lan terminal device, wireless lan system, and proxy method for wireless lan connection authentication | |
| JP4907405B2 (en) | Wireless communication terminal control method and wireless communication terminal | |
| US20150264559A1 (en) | Wireless communication apparatus and user equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20160211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |