Radio communication system and method for multicast communication

0001A specification radio communications system and multicasting correspondence procedure Technical field

0002Present invention, For example, the base station device and carrying in the Dizzy evening Le mobile communications system I P (internet Protocol) is used among a plurality of mobile stations, such as telephone. Multicasting communication (one-to-many communication) The radio communications system and multi-CAS to perform it is related with ♪ communication method -- the radio communications system which performs multicasting communication using I GMP (A nternet Group Multicast Protocol) especially, and method of multicasting It is related with a method. Background art

0003As the former and this kind of a radio communications system and a multicasting correspondence procedure, it is Special. Open 2 0 0 0 -- 3 2 0 0 There are some which are described in seven gazettes.

0004Drawing 1, It is the Plock figure showing the composition of the conventional mobile communications system. in Drawing 1 -- base station device 2 -- one Le evening (one Le evening corresponding to I GM P) 3 -- connection -- Network 4 corresponding to I GM P is connected in Re and the roux evening 3. A plurality of movements Station device 6 -- 1*6 -- Terminal equipment, such as information terminal equipment with which 3 was provided with the computer function Place 7 -- 1*7 -- It is arbitrarily connected with 3.

0005base station device 2 -- a figure -- it is shown in 2 -- as -- radio transmission and reception section 1 1 and strange demodulation section 1 2 and frame formation part 1 3 and network interface section 1 It has 5 and is constituted. each mobile station 6--1*6 -- 3 -- Drawing 3 -- mobile station 6 - It is shown on behalf of 1. obtaining -- radio transmission and reception section 2 1 and strange demodulation section 2 2, frame formation part 2.3, and terminal The evening face part 2 It has 5 and is constituted.

0006In such composition, it is I GMP reference Me from Netto work 4 corresponding to I GMP. I P PACKETS in which one Le evening 3 contains I GMP reference Mezzage to a subordinate's base station device 2 when sage reaches router 3 A is transmitted.

0007When IP A packet is received by base station device 2 and net in evening face part 15, it is frame formation part 13, the I P A packet -- fixed-length PACKETS on one you Zade evening channel (UD CH) L which is A -- carrying out pine Bing to P D U -- hurrah A Beam signal is constituted.

0008And it is total mobile station 6 about the frame signal. -- 1*6 -- Connection addressed to three Connection only for IGMP reference (DUC -- ID#1) which is A is used, and they are all the movements. It transmits to an office.

0009namely, the radio transmission and reception after modulating by the constituted frame signal and strange demodulation section 12 Trust part 11 -- (Digital /Analog) D/A conversion, a Alpha conversion, and amplification (profit profitable control) etc. -- various transmitting processings are performed -- radio transmission is carried out from an antenna.

0010this transmitted signal and each mobile station 6 -- 1*6 -- it is received by the antenna in 3 -- it is outputted to radio transmission and reception section 21. a received signal is received in radio transmission and reception section 21 -- amplification (gain control), a down conversion (Analog/Digital) A/D conversion, etc. Various receptions are performed.

0011Frame decomposition is carried out by frame formation part 23 after getting over by the signal after this processing, and strange demodulation section 22. A I P packet is taken out by this. This IP A packet passes terminal in evening face part 25, and it is terminal unit 7. -- 1*7 -- It appears in 3. Power is carried out.

0012Mobile station which, on the other hand, received the IGMP reference message contained in an IP packet Place 6--1*6 -- 3, it sets to frame formation part 23 -- Multi-key to act as receiving 3 Callot A cast IP A packet containing IGMP report Messe 1 Di which showed the IP address -- L of the fixed-length packet on UD CH -- Matsubing(ing) to PDU -- Off The Rehm signal is constituted. This frame signal is transmitted to base station device 2 using connection only for a I GMP report (DUC -- ID#1) which is a connection addressed to a base station.

0013I Base station device 2 which received GMP report Meze 1 Di is I GMP report Meze 1. They are one Le evening 3 and mobile station 6 about I P A packet containing Di. -- 1*6 -- It turns to 3 and is Sending. Trust is carried out.

0014However, in the conventional device, I P A packet containing a I GMP report message is mapped in L1P D U which is fixed-length A packet on U D C H. In a sake, Usually, being different from UD C H used, and all mobile station 6 -- 1*6 The problem that the connection for U D C H communication for exclusive use used by 3 is needed It is. --

0015not UD C H but random access for exclusive use in order to solve this problem -- line obtaining -- things -- mobile station 6 -- 1~6 -- Connex for a I GMP report among three There is the method of commoditizing To. However, it is a I GMP reference message also with this gentleman method. Actually required, since IP A packet containing a Ya E GMP report message is transmitted and received The information on except will be transmitted and received. For this reason, the amount of information becomes redundant and it is Wow 1 A. The problem that A do becomes large to 1 and a frequency band is used vainly is Ah. To. The indication of an invention

0016The object of the present invention is Wireless communication when performing multicasting communication using I GM P. The radio communications system and multicasting Through which can use Trust resources effectively It is providing Trust method.

0017It was with which this object communicates with 1 to 1 or a one to many form among other radio equipment Because -- variable-length Packet the address was indicated to be, Control hand for controlling packet communication It is judged whether order information is included, the result of the above-mentioned judgment -- the above-mentioned control procedure information -- Included Fixed-length Pake used for communication with other radio equipment in the above-mentioned control procedure information a To be case the radio equipment mapped in a fixed-length short bucket shorter than Tut -- achievement -- To be. Brief explanation of the drawings Block diagram showing the composition of Drawing 1 and the conventional mobile communications system;

0018Plot which shows the composition of a base station device [ in / in Drawing 2 / the conventional mobile communications system ] The figure;

0019Plot which shows the composition of a mobile station [ in / in Drawing 3 / the conventional mobile communications system ] The figure;

0020Drawing 4 -- Plot which shows the composition of the mobile communications system concerning an embodiment of the invention The figure;

0021Drawing 5, Style of the base station device in the mobile communications system concerning the above-mentioned embodiment The Plock figure showing Formation; in a row

0022Drawing 6, Style of the mobile station in the mobile communications system concerning the above-mentioned embodiment It is a block diagram showing Formation. The best form for inventing

0023Hereinafter, with reference to [ embodiment of the invention ] drawings, it explains in detail. Drawing 4 -- Plot which shows the composition of the mobile communications system concerning an embodiment of the invention It is a The figure.

0024Drawing 4 -- setting -- base station device 1 0 2 -- one Le evening (one Le evening corresponding to I GMP) 1 0 3 is connected -- roux evening 1 0 3 -- Netto work 1 corresponding to I GMP 0 4 is connected. It is. a plurality of mobile stations 1 0 6 -- 1*1 0 6 -- 3 was provided with the computer function. Terminal units 1, such as information terminal equipment, 0 7--1*1 0 7 -- it is arbitrarily connected with 3 -- as -- It has become.

0025Base station device 1 0 Like and radio transmission and reception section 2 which show 2 in Drawing 5 0 1 and strange demodulation section 2 0 2 and frame formation part 2 0 3 and A GMP control Meze 1 Di treating part 2 0 4 and network interface section 2 0 It has 5 and is constituted.

0026Each mobile station 1 0 6 -- 1*: L 0 6 -- 3, It is mobile station 1 to Drawing 6. 0 6 -- It is Generation about 1. Like and radio transmission and reception section 3 which are expressed and shown 0 1, Strange demodulation section 3 0 2 and frame composition Part 3 0 3 and I GMP control message processing section 3 0 It has 4 and terminal A evening face part 305, and is constituted.

0027In such composition, it is I GMP Looking from network 104 corresponding to I GMP. If meeting Mezzage arrives in one Le evening 103, roux evening 103 will transmit I P A packet which contains I GMP reference Meze 1 Di to a subordinate's base station device 102. it sets to base station device 102 -- it is received by the I P bucket transmitted from roux evening 103, and net in evening face part 205 -- it is outputted to frame formation part 203. I P A packet received by network interface section 205 is I GMP control Met. When it is I P A packet containing a sage, it is I GMP control Mezzage treating part 2. It is outputted to 04.

0028I With GMP control message processing section 204, I I GMP control from P Message message is taken out -- required portion of this I GMP control The message is Base station device 102 and mobile station 106 -- 1*106 -- Wireless communications between 3 It is mapped by fixed-length short packet for controlling (S -- PDU). It is outputted to frame formation part 203 after this mapping.

0029however -- taking out the required portion of a I GMP control message from an IP packet the inside of You GMP control Mezzage -- at least -- the Check Sum field -- Excluding It is It was. It explains concretely. Usually, IGMP control Messe 1 Di It is stored in an IP packet and transmitted to it.

0030An IP packet, the variable-length I P header of 32 or more Octet, and 4 Order It comprises a variable-length message portion more than A. IGMP control Messe 1 Di It is stored in a message part. A required portion is an IP packet to IP header. It is the removed portion.

0031I A GMP control message, those with 8 octets, and this serve as a required portion. This can also further be reduced. A A GMP control message and 1 Octets Tvpe Phi 1 of Tredo, 1 Octet Check Sum Phi 1 Rudo of Max Response Time Phi 1 Noredo of A, and 2 Octet, Group Address Off of 4 Octet Although constituted by Í 1 Rudo, S -- PDU -- control Mezzage other than I GMP the case where it transmits -- Messe -- it is not individual 1 Di and common ---like -- A, such as Chec k Sum and CRC It is common to have the Ra detection numerals field. From this to a I GMP system The Check Sum field in a message becomes omissible. About Max Response Time Phi 1 Rudo, it is negotiation processing by transmission and reception beforehand. It will become omissible, if it carries out and is made fixation.

0032Next, frame formation part 2 0 At 3, it is net in evening face part 2. 0 Variable length from 5 A I P packet is changed into fixed-length packet (L -- P D U), This L -- P D U and I GMP control message processing section 2 0 S from 4 -- frame from P D U a signal is constituted -- strange demodulation section 2 0 It is outputted to 2.

0033A frame signal is strange demodulation section 2. 0 It modulates in 2 and also is radio transmission and reception section 2. 0 At 1, various transmitting processings of D/A conversion, up convert, amplification (gain control), etc. are Dones. Radio transmission is carried out from the Was done back and an antenna.

0034This transmitted signal and each mobile station 1 0 6 -- 1*1 0 6 -- The antenna of 3 is passed. Radio transmission and reception section 3 0 It is received by 1. this received signal and radio transmission and reception section 3 0 1 -- it is -- amplification (gain control), a down conversion, and A/" -- various receptions, such as D conversion It is carried out.

0035The signal after this processing, and strange demodulation section 3 0 It gets over in 2. this recovery signal -- frame formation part 3 0 frame decomposition is carried out in 3 -- it is changed into a variable-length packet from fixed-length packet (L -- P D U), and a I P packet is taken out.

0036Frame formation part 3 0 At 3, it is a fixed-length short packet. (S -- P D U) Take out is carried out and it is I GMP control Mezzage treating part 3. 0 At 4, it is I GMP control Meze 1. I P bucket ♪ containing Di is constituted.

0037Frame formation part 3 0 3 and I GM P control Mezzage treating part 3 0 Terminal A evening face part 3 which received I P packets from 4 0 In 5, These I P Pake Terminal unit 1 after multiplex [ of the Tut ] was carried out 0 7 -- 1*1 0 7 -- It is outputted to 3. here -- terminal unit 1 0 7 -- 1*1 0 7 -- 3, It is 3 to a multicasting group. It is mobile station 1 the case where it is considered as Let's add. 0 6 -- 1*; L 06 -- From 3 to I GMP Looking If meeting Meze 1 Di is received, Mobile station 106 -- 1*106 -- 3 is passed and he is 3 Callot. It is I GMP report Mezzage to addressing to a I P address of multi-CAS toggle 1 A to carry out. It sends.

0038mobile station 106 -- 1*106 -- it sets to 3 -- terminal unit 107 -- 1*: L 07 -- IP bucket received from 3 wins popularity by terminal in evening face part 305 -- Take et al. It is outputted to Re and frame formation part 303.

0039I P PACKETS received by terminal A evening face part 305 A is I GMP control. When it is a I P bucket containing a message, it is outputted to I GMP control message processing section 304.

0040I GMP control Mezzage treating part 304 -- I GMP control from a I P packet Mezzage is taken out -- it was stored in fixed-length short packet (S -- PDU) -- back -- It is outputted to frame formation part 303.

0041In frame formation part 303, it was received from terminal A evening face part 305. A variable-length I P packet is changed into fixed-length packet (L1 PDU), L -- S from P DU and I GMP control Mezzage treating part 304 -- a Beam [ Deflection - ] signal is constituted by P D U -- it is outputted to strange demodulation section 302.

0042radio transmission and reception section 301 after modulating by the frame signal and strange demodulation section 302 setting -- DZA conversion, up convert, and amplification (gain control) etc. -- various transmitting processings it is carried out -- radio transmission is carried out from an antenna.

0043it sets to this transmitted signal and base station device 102 -- nothing after being received by the antenna in line transmission and reception section 201 -- amplification (gain control), a down conversion, and AZD -- strange Various receptions, such as Conversion, are performed.

0044it gets over by this processed signal and strange demodulation section 202 -- frame formation part 20 frame decomposition is carried out in 3 -- variable-length PACKETS from fixed-length packet (L -- PDU) It is changed into A and a I P packet is taken out.

0045Fixed-length short packet (S -- PDU) takes by frame formation part 203. It is taken out and is an IGMP control message at I GMP control message processing section 204. The included I P bucket is constituted.

0046I GM P control Mezzage treating part 2 0 S received in 4 -- When P D U includes a I G MP report message content, I I P A packet containing a GMP report message is constituted, and it is net A evening face part 2. 0 While being outputted to 5, I terminal unit 1 under intervention in the multi-CAS ♪ group which a GMP report message shows 0 7 -- 1*1 0 7 -- The received S -- as opposed to 3 -- P D U is transmitted.

0047frame formation part 2 0 3 and I GMP control Mezzage treating part 2 0 Net in Tough bowl 1 A part 2 which received I P A packet from 4 0 it sets to 5 -- these I P PACKETS multiplex [ of the ♪ ] is carried out -- the back and router 1 0 It is transmitted to 3.

0048Thus, according to the radio communications system of an embodiment, it is I GMP control Messe. -- Di treating part 2 0 4 and 3 0 4, Necessity of the I GMP control Mezzage which carried out the termination It is base station device 1 only about a portion. 0 2 and mobile station 1 0 6 -- 1*1 0 6 -- Between 3 It was made to map in fixed-length short packet (S -- P D U).

0049Any information other than necessity will not actually be transmitted and received by this. Namely, I P Pake Since an unnecessary I P header will not be transmitted and received by the radio circuit among Tuts, the former -- if the amount of information becomes redundant obtaining, Was it will be lost when -- that much -- the former -- Ford can be made small to a bar -- a frequency band can be used effectively To.

0050I the inside of P Packet -- a I P header unnecessary in a radio circuit -- at least 2 4 Ok Case where comprised Tete and Tsuda is used to an option in addition to a I P header 4 if becoming 0 or more Octet also takes a certain thing into consideration -- the effect of the present invention -- a large -- it is .

0051If it sets to the above-mentioned embodiment, it is base station device 1. 0 2 and mobile station 1 0 6 -- 1*1*6 -- Although the form which carries out wireless communications among 3 was explained, the present invention -- this the key station which is not limited and was fixed [ AD S L / F T T H, ] -- fixation -- Medium common use type Access line which consists of a child office of Was done plurality A summary is possible also to Network. Because -- To . It communicates with 1 to 1 or a one to many form between the radio equipment of the present invention, and other radio equipment. In order to control packet communication in the variable-length bucket in which the address for carrying out was shown Part which judges whether control procedure information is included, the result of the above-mentioned judgment -- the above-mentioned control the case where procedure information is included -- the above-mentioned control procedure information -- the communication with other radio equipment -- using -- The composition possessing the part mapped in a fixed-length short packet shorter than a To be fixed-length packet is taken.

0052According to this composition, only control procedure information is Map to short A packet with little amount of information. Since Tongue is carried out, if the amount of information becomes redundant like before, Was it will be lost when -- an overhead can be made smaller than before that much -- frequency band It can be used effectively.

0053it sets in the radio equipment of the present invention, and the above-mentioned composition -- a short packet -- the necessity for control procedure information The composition which maps only a portion is taken. according to this composition -- Must of control procedure information since only an important point portion is mapped by the short packet with little amount of information -- Oba -- A do can be made small to -- a frequency band can be used effectively. it sets in the radio equipment of the present invention, and the above-mentioned composition -- a fixed-length packet -- variable-length packet pine Bing is carried out -- fixed-length A packet and the control procedure information after this Matsubing -- Matsu Composition possessing the part which carries out frame conversion to signals of the short bucket by which Bing was carried out, and transmits It takes. according to this composition, it comes out to transmit control procedure information by a communications channel It cuts.

0054it sets in the radio equipment of the present invention, and the above-mentioned composition -- decomposing a frame signal -- variable-length The Part which takes out a blanket and a short packet, It is Take about the above-mentioned short packet to control procedure information. The part which carries out Outflow and it maps in other variable-length buckets, and Twins of the above-mentioned variable-length packet The composition possessing the part which multiplexes a way is taken. According to this composition, it is control procedure information. And the both sides of user information can be multiplexed by the same channel.

0055it sets in the radio equipment of the present invention, and the above-mentioned composition -- control procedure information takes the composition which is (Internet Group Multicast Protocol) I G M P information. This style This which obtains [ according to Formation ] the same operation effect as one of the above also in the case of I GMP information It can do.

0056In the above-mentioned composition, as for the radio equipment of the present invention, a variable-length packet is I P. The composition which is (internet Protocol) A packet is taken. According to this composition, it is a place of a I P bucket. The same operation effect as one of the above can be obtained also by Synthesis.

0057Composition possessing the mobile station of the present invention, and the radio equipment of one of the above, and the composition It takes. according to this composition, it sets to a mobile station -- the same operation effect as one of the above Result can be obtained.

0058Composition possessing the base station device of the present invention, and the radio equipment of one of the above, and the composition It takes. according to this composition, it sets to a base station device -- the same operation effect as one of the above Result can be obtained.

0059it is possession about the mobile station and base station device of the radio communications system of the present invention, and the above-mentioned composition it carries out -- one station device in the above-mentioned mobile station and the above-mentioned base station device -- rate of radio resources The composition which performs Rear control is taken. According to this composition, it is a quota function of radio resources.

0060one radio station equipment (for example, base station device) it does not have fixed -- the -- sometimes -- The whereabouts of a radio resource quota function can be changed.

0061The radio communications system of the present invention, one of the above and the radio equipment of the composition, and nothing above-mentioned A line device and the communications network device which transmits and receives a variable-length packet via the roux evening are provided. Composition is taken. according to this composition, it sets to a radio communications system -- one of the above The same operation effect can be obtained.

0062It is 1 to 1 or a one to many form between the multicasting correspondence procedure of the present invention, and radio equipment. When communicating, it sets to radio equipment, The address for performing the above-mentioned communication was shown. Place where the control procedure information for controlling packet communication is included in variable-length bucket Union and fixed-length Bucket tip used for communication with other radio equipment in the above-mentioned control procedure information Ri is also mapped in a short fixed-length short packet, and it was made to transmit.

0063According to this method, only control procedure information is Matsupi to short A packet with little amount of information. Since Tongue is carried out, it is lost that the amount of information becomes redundant like before -- Oba 1 head can be conventionally made small that much -- frequency band It can be used effectively.

0064it sets to the multicasting correspondence procedure of the present invention, and a described method -- fixed-length packet a variable-length packet is mapped -- the fixed-length packet after this mapping, and control Frame conversion to signals of the short packet by which procedure information was mapped is carried out, and it transmits. It carried out for obtaining. According to this method, transmitting control procedure information by a communications channel It can do.

0065it sets to the multicasting correspondence procedure of the present invention, and a described method -- from a frame signal a variable-length packet and a short packet are taken out -- control procedure information from this short bucket Variable-length Packet after [ both ] taking out and mapping with other variable-length A^blankets A was multiplexed. According to this method, they are control procedure information and user information. Both sides can be multiplexed by the same channel.

0066According to like and the present invention which were explained above, I GMP is used, and it is multicasting Through. When performing Trust, wireless-communications resources can be used effectively.

0067This specification is 2. 0 0 June 2, 0 Application for patent 2 of three-day application 0 0 0 -- 1 8 9 5 9 It is a basis to 2. To. The whole of these contents is included herein. Industrial applicability

0068the base station device in the present invention and the Dizzy evening Le mobile communications system, and cellular phone etc. -- using I P among a plurality of mobile stations -- multicasting communication (One-to-many communication) It comes out to apply to the radio communications system and multicasting correspondence procedure to perform. It cuts.