CN1942006A - Group control radio base station and channel assignment method thereof - Google Patents
Group control radio base station and channel assignment method thereof Download PDFInfo
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Abstract
Provided are a group control radio base station and channel assignment method thereof. In a group control radio base station composed of a master base station and slave base stations, when the distribution of mobile stations is centralized in one, the probability of failure for the channel switch of the base station on one side of the distributed and centralized is high, and the circumstance that the call quality will keep difficult will happen. Each base station stores the number of vacant slots, under use or not-in-use of each slot, frequency carrier numbers, receiving level statuses of mobile stations in a resource judgment information table. The master base station receives link channel establishment request messages from the mobile stations and transmits resource confirmation requests of new messages to the slave base stations. The slave base stations receive the resource confirmation requests of the new messages and transmit stored information to the master base station by storing the information in resource confirmation replies. The master base station receives the resource confirmation replies of the new messages from the slave base stations and executes resource judgment processing. In the resource judgment processing, a radio base station suitable for a call base station of the group control radio base station is selected.
Description
Technical field
The present invention relates to group control radio base station and method for channel allocation thereof, particularly guarantee, keep the group control radio base station and the method for channel allocation thereof of certain speech quality.
Background technology
As adopting TDMA/TDD (Time Division Multiple Access/TimeDivision Duplex) technology, on the time slot of regulation, a plurality of channel time-sharing multiplexs are carried out the wireless communication system of the transmission reception of information, the personal handyphone system (Personal Handyphone System: be designated hereinafter simply as PHS) by " the RCR STD-28 of cordless telephone generation 2 system " regulation of civic organization's electric wave industrial circle is arranged.The TDMA multiplexing number is 4 among the PHS, 1 time slot wherein is used for the transmission reception of control channel (Control Channel: hereinafter referred to as TCH), and remaining 3 time slot is used for the transmission reception of talk channel (Traffic Channel :) hereinafter referred to as TCH.When control channel is represented by C, when talk channel was represented with T, basic PHS frame constituted 1C3T.
The traffic carrying capacity that causes corresponding to the increase of PHS entrant quantity increases, and needs to increase the number of channel.As the countermeasure that traffic carrying capacity increases, the method that has is the number of channel that increases per 1 PHS base station cabinet.In existing P HS base station, exist the base station that 2 above-mentioned 1C3T frames that constitute, a cabinet 1C7T constitute is installed.For corresponding to require further to increase talk channel according to traffic conditions, also to research and develop the frame formation base station of 1C15T.But, when to each cabinet multichannel, can not fully use, bring into play the performance of multichannel base station sometimes in the region that traffic carrying capacity is fewer, improve operating cost sometimes for client's purposes difference.
According to the situation of traffic carrying capacity, when flexibly the base station being set, to compare with the base station that the frame that adopts 1 cabinet 1C15T constitutes, the frame that 1 cabinet 1C7T is set constitutes two of base stations, and the method for the performance of 2C14T is more effective altogether.In addition, use to connect 2 stylobate stations by cable, in the base station that the frame of a cabinet 1C7T constitutes, by 2 shared control channel C, integral body can be brought into play this technology of group control (GC) of 1C7T+8T performance, and is regularly more effective to the transmission that utilizes the Finite control channel.
In 2 stylobate stations, the base station that transmits control channel is called dominant base, and another is called slave base stations.The group control radio base station that constitutes by such dominant base and slave base stations, owing in the frame of slave base stations, also can not distribute control channel C, so can increase the talk channel quantity that can distribute.
In patent documentation 1 and patent documentation 2, put down in writing the base station control method when connecting many stylobates station.
(patent documentation 1) TOHKEMY 2004-297505 communique
(patent documentation 2) TOHKEMY 2004-343538 communique
When mobile radio station was called out this group control radio base station, dominant base received and sets up request message from the link channel of mobile radio station, to the frame assigns talk channel T of dominant base or slave base stations.
In group control radio base station, when receiving when setting up request message from the link channel of mobile radio station, the time slot method of selecting to distribute which base station sees it is important techniques very from the viewpoint that better speech quality is provided to the user.
In the invention that patent documentation 1 or patent documentation 2 are put down in writing, talk channel distributes the base station that concentrates on a side easily, and the talk channel (Tch) that can not stride between the base station switches.Therefore, the base station of a side in the allocation set, the probability height of channel handoff failure can be kept the speech quality situation of difficult.For service (keeping speech quality) is provided, call out during with first sub-distribution and compare for optimum state, need guarantee, keep the technology of certain speech quality.
Summary of the invention
The object of the present invention is to provide a kind of group control radio base station and method for channel allocation thereof, in the group control radio base station of dominant base and slave base stations formation, by 2 wireless base station loads are distributed to the user who calls out from mobile radio station substantially equably, can provide better speech quality.
In order to solve above-mentioned problem, group control radio base station is by dominant base, and the wireless base station that constitutes with the slave base stations that cable connects, each base station in the resource judgment information table, deposit the empty slot number, each time slot uses or do not use, frequency carrier number, mobile radio station incoming level situation.Dominant base receives and sets up request message from the link channel of mobile radio station, and slave base stations is sent resource confirmation requests of new messages.Slave base stations receives resource confirmation requests of new messages, and with empty slot number, each time slot of depositing in each base station use or do not use, frequency carrier number, mobile radio station incoming level situation, the resource that leaves new information in is confirmed to send to dominant base in the response.Dominant base receives from the resource of the new information of slave base stations confirms response, implements resource judgment processing.In resource judgment processing, the selected wireless base station that is suitable for group control radio base station conversation base station.
The effect of invention is as follows:
In the group control radio base station that is made of dominant base and slave base stations, the user to calling out from mobile radio station can provide better speech quality.
Description of drawings
Fig. 1 is the block diagram of expression group control radio base station system.
Fig. 2 is the block diagram that the explanation BTS hardware constitutes.
Fig. 3 A is because of moving the figure that causes mass change in the explanation communication process.
Fig. 3 B is because of moving the figure that causes mass change in the explanation communication process.
Fig. 3 C is because of moving the figure that causes mass change in the explanation communication process.
Fig. 4 A is that explanation receives from the link channel of mobile radio station and sets up the sequence chart of communicating by letter between the dominant base of request and the slave base stations.
Fig. 4 B is that explanation receives from the link channel of mobile radio station and sets up the sequence chart of communicating by letter between the dominant base of request and the slave base stations.
Fig. 5 is the figure of explanation resource judgment information table.
Fig. 6 is the time slot tables of data that mobile radio station divides the timing base station.
Fig. 7 be corresponding to frequency carrier number, with the group of incoming level on the frequency of this carrier number.
Fig. 8 is the flow chart of explanation resource judgment processing.
Fig. 9 is the figure of best carrier number table in the explanation time slot.
Figure 10 is the flow chart that the explanation optimum channel is selected processing.
Embodiment
With reference to the accompanying drawings embodiments of the invention are elaborated.
Fig. 1 is the block diagram of expression group control radio base station system.With reference to Fig. 1, this wireless base station comprises dominant base (MCS:Master Cell Station) 101, reaches slave base stations (SCS:Slave Cell Station) 102.Be connected by cable 103 102 of dominant base 101 and slave base stations.These base stations 101,102 are connected on the net side network 105 by base-station control apparatus (CSC:Cell Station Controller) 104.Dominant base 101 and slave base stations 102 have common substantially radio service area 110.
In the dominant base 101 that 1 cabinet 1C7T frame 111 constitutes, control channel C distributes 1 time slot, and all the other 7 time slots have talk channel T.Owing to be the group control, the slave base stations 102 that is connected with dominant base 101 cables is with the dominant base shared control channel, so can form the base station that the 8T frame 112 of the frame with whole talk channel T constitutes.Dominant base 101 and slave base stations 102 are carried out time-division processing according to the TDMA/TDD mode.These base stations have descending Tx: send with frame, up Rx: receive and use frame, be made of 8 pairs of time slots.C, the t of mark, the label of T in each time slot of 1C7T frame 111,8T frame 112, each expression is assigned to and 101 mobile radio stations of dominant base (PS:PersonalStation) group 106 via radio wave 108, be assigned to and 102 of slave base stations via the mobile radio station group's 107 of radio wave 109 time slots (C) that use as control channel, untapped conversation time slot (t), the conversation time slot (T) that uses.
Time slot allocation has control channel CCH or conversation (information) channel TCH.The time slot that is assigned CCH is called the control time slot, and the time slot that is assigned TCH is called the conversation time slot.Send CCH information by CCH, send TCH information by TCH.CCH information is used to start TCH and sets up TCH.Time slot 1 to the timing (time slot 5 is to the timing of time slot 8) of time slot 4 is called absolute time slot.Signal frequency difference in each time slot, but each base station of having only control channel to connect on net side network 105 is common signal frequency.
The cable 103 that connects dominant base 101 and slave base stations 102 changes the terminal processes at cable two ends, and making the identification of base stations itself that is connected is dominant base, or slave base stations.
Fig. 2 is the block diagram that the explanation BTS hardware constitutes.In order to connect the base station of same formation with cable, the hardware of dominant base and slave base stations constitutes identical.The formation of base station 101,102 comprises: transmitting system wireless device 202; Receiving system wireless device 203; By the memory 2041 of unillustrated resource judgment information table in the storage map, control with microprocessor 2042 and control device portion 204 that institute's program stored 2043 etc. does not constitute in the volatibility recording portion; The signal control device 205 that comprises the incoming level measurement section 2051 of measuring incoming level; As with the Wireline control device 206 of base-station control apparatus interface; And the group control control device (GC control device) 207 of the group control of control and other base stations.The GC control device is by connecting as the base station that constitutes identical cabinet with cable 103, and identification dominant base or slave base stations are carried out the information transmission between the base station.In addition, on the input part of the efferent of transmitting system wireless device 202, receiving system wireless device 203, connect the antenna 210 that communicates usefulness with the mobile radio station group.
Incoming level measurement section 2051 when time slot does not use, when changing carrier number, is measured incoming level to whole carrier number, and it be the results are shown in the frequency data table of resource judgment information table.Incoming level when time slot does not use is communicating by letter of other base stations and mobile radio station, is the incoming level of disturbing wave to this base station.
Below, utilize Fig. 3, illustrate and distribute 2 wireless base stations are balanced, can keep the situation of quality in the communication process.Fig. 3 is because of moving the figure that causes mass change in the explanation communication process.Fig. 3 is illustrated in the situation that connects 6 mobile radio stations (PS) on the group control radio base station.Fig. 3 A has distributed 6 mobile radio stations to dominant base, to unallocated 1 mobile radio station of slave base stations.That is the situation of, distributing a side in 2 base stations that concentrate on the group control.Fig. 3 B distributes 3 mobile radio stations to dominant base, and slave base stations is also distributed 3 mobile radio stations.That is, expression is to the balanced situation of distributing in 2 base stations of group control.
Below, adopt Fig. 3 C, illustrate because the conversation environmental change causes the situation of wireless quality deterioration.At this, channel 301 quality deteriorations in time slot 4 conversations of dominant base are described, need carry out the situation that talk channel switches.Mobile radio station PS1 moves to place B from place A.Place B is the radio service area overlapping areas that provides with the wireless base station 301 in addition, wireless base station 101,102 that has distributed mobile radio station PS1.
Mobile radio station PS7 distributes to wireless base station 401.At this moment, mobile radio station PS7 is assigned to wireless base station 401, uses the talk channel of the frequency field close with channel 301 at time slot 4.At this moment the mobile radio station PS1 that moves to place B is subjected to the radio wave influence to the 401 couples of mobile radio station PS7 in wireless base station, with conversation environment facies ratio at place A, because the ripple that is interfered, so the wireless quality deterioration.
When channel 301 quality deteriorations in the conversation, in order to keep the quality in the conversation, the empty slot of the wireless base station of current distribution is carried out channel switch.When switching in the channel 301 of the mobile radio station PS1 in time slot 4 conversation of dominant base 101 of Fig. 3 A, alternative time slot is a untapped time slot (t) in the dominant base 101, has only 1.When switching in the channel 301 of the mobile radio station PS1 in time slot 4 conversation of dominant base 101 of Fig. 4 B, alternative time slot is dominant base 101 untapped time slots (t), has 4.
Channel is regularly the combination of (time slot) and frequency (carrier number), and the quantity of carrier number is a lot, but absolute time slot has only 4, so the selection branch of time slot is many, then can select the measured channel of matter.Thereby,, shown in Fig. 3 B, preferably the mobile radio station equilibrium is distributed to 2 base stations of group control in order to keep wireless quality.
In mobile communication system, because mobile radio station or barrier move, the channel quality that begins to distribute is at every moment changing.It is the necessary function of switching the channel that uses when quality deterioration that talk channel switches, and carries out equilibrium and divides pairing to guarantee that speech quality is effective.
Utilize Fig. 4 below, the conversation between the station is described.Fig. 4 is that explanation receives from the link channel of mobile radio station and sets up the sequence chart of communicating by letter between the dominant base of request and the slave base stations.
Sequence chart when Fig. 4 A represents dominant base 101 distribution mobile radio stations.When reception was set up request message (S801) from the link channel (Link channel:LCH) of mobile radio station 401,101 pairs of slave base stations of dominant base 102 sent resource confirmation requests message (S802).Slave base stations 102 receives resource confirmation requests message 802, with the time slot data message in the resource judgment information table of depositing in each base station (empty slot, each time slot use/ use) and frequency information (frequency carrier number, mobile radio station incoming level situation), leave in the resource affirmation response message and send to dominant base 101 (S803).
At this moment, owing to distribute to dominant base 101,, dominant base 101 whether can distribute alternative channel allocation calling (S403) to conduct so judging reality.At this moment, owing to can distribute, dominant base 101 sends link channel (LCH) assignment messages (S806) in order to communicate with mobile radio station 401 to mobile radio station 401.In step 403, as inseparable timing (NG), refusal distributes, and cuts off and calls out.At this moment, the processing of distributing to slave base stations 102 that also can carry out illustrating among Fig. 4 B.
Sequence chart when Fig. 4 B represents that mobile radio station distributed to slave base stations 102.Sequence before the resource judgment step 402 is identical when distributing to dominant base 101.
The result of resource judgment, when distributing to slave base stations 102,101 pairs of slave base stations 102 of dominant base send link channel allocation request message (S804).Slave base stations 102 receives the link channel allocation request message, and judges whether reality can distribute alternative channel allocation calling (S804) to conduct.At this moment, owing to can distribute (OK), so slave base stations 102 sends link channel assignment response message (S805) to dominant base 101, dominant base 101 sends link channel assignment messages (S806) in order to communicate with mobile radio station 401 to mobile radio station 401.When not dividing timing (NG) in step 404, then refusal distributes, and cuts off and calls out.At this moment, also can not cut off calling, but slave base stations 102 sends link channel refusal assignment response message to dominant base 101, attempts distributing at dominant base 101.
Fig. 5 is the figure of explanation resource judgment information table.The resource judgment information table can also be made of time slot tables of data and frequency data table.Wherein, Fig. 5 (a) is the figure of explanation time slot tables of data.Fig. 5 (b) is the figure of explanation frequency data table.
In Fig. 5 (a), it is to use or untapped time slot uses/service marking ON/OFF not that the time slot tables of data is deposited in the base station empty timeslot number and expression time slot 1 to time slot 8.
In Fig. 5 (b), the frequency data table is a table of depositing frequency carrier number and incoming level (disturbing wave level) successively.The frequency data table is the table of number of timeslots (at this moment being 8 faces).
Concrete time slot tables of data, frequency data table adopt Fig. 6 and Fig. 7 to describe.Fig. 6 is the figure of the time slot tables of data of explanation dominant base and slave base stations.And Fig. 7 is the figure of the frequency data table (time slot 5) of explanation dominant base.
Fig. 6 is the time slot tables of data of the mobile radio station of Fig. 3 B base station of dividing timing.In Fig. 6, use the time slot level, (ON) used in data " 1 " expression, use of data " 0 " expression (sky/OFF).Fig. 6 (a) is the time slot tables of data of main base.Fig. 6 (b) is the time slot tables of data in subordinate base.In Fig. 6 (a), because time slot 1 is the control time slot, time slot 2～4 uses as the conversation time slot, so the empty slot number is 4.Equally, in Fig. 6 (b), owing to time slot 1～2, time slot 4 use as the conversation time slots, so the empty slot number is 5.
Fig. 7 be corresponding to frequency carrier number, with the frequency of this carrier number on the group of incoming level.Fig. 7 has only put down in writing representational incoming level, and from carrier number 1 to 83, incoming level is minimum, it is alternative to be that the minimum carrier number of interference signal level 3 becomes the employing of time slot 5.
Below, utilize Fig. 8 to illustrate and receive the resource judgment processing that the dominant base 101 of the LCH request of setting up carries out from mobile radio station 401.Fig. 8 is the flow chart of explanation resource judgment processing.This flow chart is the selected operating procedure in conversation base station that group control radio base station is carried out with software.The wireless base station can be installed these programs from the outside.The program of flowchart is read the back and is carried out from memory.
In Fig. 8, dominant base 101 receives the resource of new information and confirms response, beginning resource judgment processing 402.At first, in resource judgment processing, select the selection of the optimum channel of dominant base to handle (S602).Select to handle about optimum channel, will describe with Figure 10 afterwards.Equally, select the optimum channel of slave base stations to select to handle (S603).The contents processing of step 603 is identical with the situation of dominant base, selects the optimum channel of slave base stations, end process.Say that exactly step 603 is actions of slave base stations, as shown in Figure 4, dominant base sends resource confirmation requests to slave base stations, receives resource and confirms response.
By above-mentioned processing, obtain the optimum data of main and slave base stations after, in the group control radio base station that dominant base 101 and slave base stations 102 constitute, carry out the low best absolute time slot (S604) of decision disturbing wave from the time slot of sky.It all be the situation of the time slot state of sky that the best absolute time slot of decision has dominant base 101 and slave base stations 102 both sides, and to have only a side wireless base station be the situation of empty slot.When having only dominant base to be empty slot, with dominant base as the conversation base station (S607).And when having only slave base stations to be empty slot, with slave base stations as the conversation base station (S608).
When two wireless base stations all became the empty slot state, the empty slot number in the time slot tables of data began to compare (S606) with the remaining empty slot number in each base station.When the empty slot of the empty slot number 〉=slave base stations of dominant base was counted, the base station decision of will conversing was dominant base (S607).When not satisfying this condition, the base station decision of will conversing is slave base stations (S608).As shown in Figure 8, become optimum state with a minute timing calling and compare, certain speech quality more can be guaranteed, be kept to two mobile radio station distribution that wireless base stations carry out equating substantially.In addition, adopt absolute time slot to be, then the also good cause of speech quality of the time slot 5 of the time slot beyond the absolute time slot 1 of conduct because if the specific carriers speech quality of time slot 1 is good.
Below with reference to Fig. 9 and Figure 10, the optimum channel selection processing of carrying out the base station is described.Fig. 9 is the figure of best carrier number table in the explanation time slot.Figure 10 is the flow chart that the explanation optimum channel is selected processing.Fig. 9 is the auxiliary view of explanation Figure 10.Figure 10 selects the further explanatory drawings handled to the optimum channel that dominant base and slave base stations are implemented in step 602 or the step 603 of Fig. 8.
Fig. 9 (a) is the frequency data table according to the dominant base of the time slot tables of data with Fig. 6 (a), the table that the carrier number of incoming level minimum and incoming level gather in each empty slot.As illustrated in fig. 7, the best carrier 3ch incoming level of time slot 5 is 8dB μ V.Equally, be the 7dB μ V of 3ch at time slot 6, be the 5dB μ V of 7ch at time slot 7, at time slot 8 the 8dB μ V of 25ch.Showing as can be known from this, optimum channel is the 7ch of time slot 7.Fig. 9 (b) be explanation when Figure 10 is used for dominant base final optimum channel and the figure of the incoming level of this moment.To in Figure 10, describe about Fig. 9 (b).About the optimum channel detection algorithm of Fig. 9 (b), adopt Figure 10 to describe.
In Figure 10, when the base station begins optimum channel selection processing, at first, initial value is set at the incoming level fm (S702) that judges usefulness.Then, whether the timeslot number 1 of the time slot tables of data of enforcement base station is the inspection (S703) of empty (OFF).When being "Yes", whether the incoming level of the carrier number 1 of determination frequency tables of data is than fm little (S705).When step 703 is "No", forward step 710 to.In step 703, when being "Yes", with the value of fm as incoming level (S706).
In step 705, when being "Yes", the value of incoming level fm is replaced as incoming level (S706).With the timeslot number of optimum channel and the value of carrier number, be replaced as the timeslot number and the carrier number (S707) that obtain incoming level.Then carrier number is increased (S708).In step 705, when being "No", transfer to step 708.After step 708, judge whether all to have retrieved carrier number (S709), if "No" is then returned step 705.In step 709, if be "Yes", then timeslot number is increased (S710), judge whether the retrieval of each time slot finishes (S711).If "No" is then returned step 703, if be "Yes", then processing finishes.
Again Figure 10 is specifically described.Herein, its prerequisite be the dominant base shown in Fig. 6 (a) the time slot data, and the time slot of Fig. 9 (a) of from the frequency data table of dominant base shown in Figure 7, drawing in the optimum reception level.In Fig. 6 (a),,, and forward step 710, step 711, step 703 to so the step 703 of Figure 10 all is judged as "No" owing to 4 be just in use from time slot 1 to time slot.At time slot 5, become "Yes" first in step 703.Return the capable step 705 of retry to step 709, import incoming level for the time being at optimum channel: 8dB μ V, timeslot number: 5, carrier number: 3ch.Then, owing to 8 all be empty slot from time slot 6 to time slot, so return the capable step 703 of retry again to step 711.As a result, the end value of optimum channel becomes Fig. 9 (b).
According to present embodiment, in the group control radio base station that constitutes by dominant base and slave base stations, by the user equilibrium ground of calling out from mobile radio station being distributed the load of 2 wireless base stations, can obtain to provide group control radio base station, and the distribution method of this channel of better speech quality.
Claims (5)
1, a kind of group control radio base station, connect dominant base that control channel is received and dispatched, with the slave base stations of control channel not being received and dispatched, wherein,
Above-mentioned dominant base receives and sets up request message from the link channel of mobile radio station, carries out the resource judgment of above-mentioned dominant base and above-mentioned slave base stations, sends the link channel assignment messages to above-mentioned mobile radio station.
2, group control radio base station as claimed in claim 1 is characterized in that:
Above-mentioned dominant base sends resource confirmation requests message to above-mentioned slave base stations;
Receive the above-mentioned slave base stations of above-mentioned resource confirmation requests message, send resource to above-mentioned dominant base and confirm response message.
3, group control radio base station as claimed in claim 2 is characterized in that:
Confirm to comprise time slot data message and frequency information in the response message in above-mentioned resource.
4, a kind of method for channel allocation of group control radio base station, this group control radio base station connect dominant base that control channel is received and dispatched, with the slave base stations of control channel not being received and dispatched, it is characterized in that, comprising:
Select the step of the 1st optimum channel of above-mentioned dominant base;
Select the step of the 2nd optimum channel of above-mentioned slave base stations;
Step by above-mentioned the 1st optimum channel and the best absolute time slot of above-mentioned the 2nd optimum channel decision; And
When the absolute time slot of above-mentioned the best can be distributed to above-mentioned dominant base and above-mentioned slave base stations, carry out the step of comparison of the 2nd empty slot number of the 1st empty slot number of above-mentioned dominant base and above-mentioned slave base stations.
5, the method for channel allocation of group control radio base station as claimed in claim 4 is characterized in that, comprises that also assigns talk is given the step of above-mentioned dominant base when above-mentioned the 1st empty slot number is equal with above-mentioned the 2nd empty slot number.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP201186/2005 | 2005-07-11 | ||
| JP2005201186A JP2007020026A (en) | 2005-07-11 | 2005-07-11 | Group control radio base station and channel assignment method thereof |
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| CN1942006A true CN1942006A (en) | 2007-04-04 |
| CN1942006B CN1942006B (en) | 2010-12-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130178219A1 (en) * | 2012-01-09 | 2013-07-11 | Samsung Electronics Co. Ltd. | Method and apparatus for providing communication service to mobile station by multiple base stations in cooperation in wireless communication system |
| WO2015062043A1 (en) * | 2013-10-31 | 2015-05-07 | 华为技术有限公司 | Dual connection mode resource request method and terminal, and master enb and secondary enb |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101779516A (en) | 2007-08-10 | 2010-07-14 | 三菱电机株式会社 | Radio communication system and base station |
| JP2011254187A (en) * | 2010-06-01 | 2011-12-15 | Funai Electric Co Ltd | Network system |
| JP6285360B2 (en) * | 2011-10-10 | 2018-02-28 | サムスン エレクトロニクス カンパニー リミテッド | Logical address assignment in cloud cell |
| JP2014179742A (en) * | 2013-03-14 | 2014-09-25 | Kyocera Corp | Communication system, base station, upper-level device and communication control method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06507058A (en) * | 1992-02-06 | 1994-08-04 | モトローラ・インコーポレイテッド | Frequency sharing in multiplex radiotelephone systems |
| JP2834080B2 (en) * | 1996-06-04 | 1998-12-09 | 日本電気移動通信株式会社 | Communication method in simplified mobile phone system |
| JPH11196459A (en) * | 1997-12-29 | 1999-07-21 | Kyocera Corp | Connection control method for radio base station device |
| JP4354258B2 (en) * | 2003-11-21 | 2009-10-28 | 三菱電機株式会社 | Mobile communication system |
| CN1312959C (en) * | 2004-08-19 | 2007-04-25 | Ut斯达康通讯有限公司 | Method for control channels distribution in PHS base station |
-
2005
- 2005-07-11 JP JP2005201186A patent/JP2007020026A/en active Pending
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- 2006-07-10 CN CN 200610101469 patent/CN1942006B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130178219A1 (en) * | 2012-01-09 | 2013-07-11 | Samsung Electronics Co. Ltd. | Method and apparatus for providing communication service to mobile station by multiple base stations in cooperation in wireless communication system |
| WO2015062043A1 (en) * | 2013-10-31 | 2015-05-07 | 华为技术有限公司 | Dual connection mode resource request method and terminal, and master enb and secondary enb |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007020026A (en) | 2007-01-25 |
| CN1942006B (en) | 2010-12-01 |
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