CN1206274A - PHS subscriber loop multiplex communication system - Google Patents

Abstract

In a communication system between a CS concentrator 50-1 concentrating lines of PHS radio base stations 10-1 to 10-N and being located in a remote area and a subscriber terminal device 60 in a PHS exchange, by multiplexing two call control groups of (14B+D+C) channels on a 2M primary-group transmission line, a PHS system is constructed which uses the 2M primary-group transmission line with a good channel operating efficiency.

Description

The PHS subscriber loop multiplex communication system

The present invention relates to a kind of communication system, between its user terminal at least one control signal CS concentrator and PHS switch, and CS concentrator wherein links to each other with at least one PHS wireless base station (calling CS in the following text) and is positioned at distant location.

In traditional PHS system, connect by 1.5M main group transmission line between the user terminal apparatus in CS concentrator and PHS switch, CS concentrator wherein comprises a plurality of CS and has the circuit centralized function.As disclosed in TR-TSY-000303,1.5M main group transmission line is the time division multiplexing and the system that is used for the multiplexed maintenance channel (C) of channel D time slot that is used for (2B+D) channel of the ISDN basic interface (calling BRI in the following text) on the time slot.

Equally, as disclosed in TTCJT-Q931-b, a kind of like this pattern of well-known existence, promptly it has an interface structure that is used for common channel D.In the case, BRI channel is used as the control channel of the channel B among another BRI.This pattern has the interface structure of (16B+D) that use 8 BRI.

In addition, following known process is the traffic control method of conventional P HS switch.In this process, at produced exceed disposal ability and by the defined calling/position register information of TTC JT-Q931-b, can return an interrupting information to the CS concentrator from switch.

Above-mentioned 1.5M main group transmission line is not a kind of economical and practical line loop method.This is because in the system that uses traditional 1.5M main group transmission line, be to come 16 channel B among 8 BRI are called out control by the channel D with single BRI, so 7 channel D are not used.

Equally, in traditional traffic control method, corresponding to calling/position register information, disconnection information is turned back to the CS concentrator from switch.In the case, when the number of CS concentrator increases, will there be a kind of like this possibility, promptly because delay between CS concentrator and the switch and the delay in the switch, the time of the timer of excess layer 3 (T310) not only can be interrupted new calling/location registers, but also the calling in the meeting interrupt call setting up procedure.Particularly, in traditional traffic control method, when the number of CS concentrator increased and receive call information above disposal ability, then information was arranged in order etc. pending.Therefore, the call information amount is many more, and then the stand-by period in the sequence can be long more.

Therefore, the purpose of this invention is to provide a kind of PHS subscriber loop multiplex communication system, wherein pass through multiplexed two (14B+D) channel call control groups in a 2M main group transmission line, thereby can improve the operating efficiency of circuit.

Another object of the present invention provides a kind of simple PHS subscriber loop multiplex communication system, and it has avoided changing and necessity as TTC JT-Q931-b corresponding to (16B+D) interface structure of layer 3 function of the CS concentrator that uses traditional 1.5M main group transmission line and user terminal apparatus.

Another purpose of the present invention provides a kind of PHS subscriber loop multiplex communication system, even wherein when having applied excessive load, also can control and realize the disposal ability of being scheduled to by the traffic of working service control information channel (channel C), this safeguards that the control information passage is different with call control information channel (channel D), and is multiplexed in the same time slot of channel D.

In order to realize these purposes, the invention provides a kind of PHS subscriber loop multiplex communication system, wherein connect by 2M main group transmission line, between the user terminal apparatus of this 2M main group transmission line in PHS wireless base station concentrator and PHS switch, and wherein PHS wireless base station concentrator links to each other with the PHS wireless base station and is positioned at remote zone, and the group is controlled in multiplexed 2 (14B+D+C) channel calls on 2M main group transmission line.

According to an aspect of the present invention, PHS wireless base station concentrator comprises first interface section, and it is used for to join with user terminal by the 2M main group transmission line of multiplexed two (14B+D+C) channel calls control group on single transmission line; One is used for first (D+C) channel terminal part of terminating channel D, and it is by using TTCJT-Q921-b and being used for safeguarding that from the user terminal apparatus reception channel C of control information carries out and the communicating by letter of user terminal apparatus; And the first time division multiplexing switch sections, be used to use a time-division switching that (D+C) channel information of first (D+C) channel terminal part is connected with (D+C) channel that 2M main group transmission line connects above.User terminal apparatus comprises one second interface section, and it is used for to join with PHS wireless base station terminal installation by the 2M main group transmission line multiplexed two (14B+D+C) channel calls control of single transmission line group; One is used for second (D+C) channel terminal part of termination channel D, and it is by using TTC JT-Q921-b and transmitting the channel C that safeguards control information to the PHS wireless base station and come to communicate with the PHS wireless base station; And one second time division multiplexing switch sections, it uses time-division switching to be connected connecing (D+C) channel on (D+C) channel information of second (D+C) channel terminal part and the 2M main group transmission line.In 2M main group transmission line, be provided with two groups of (14B+D+C) channel altogether.

Fig. 1 is the structural representation of traditional PHS subscriber loop multiplex communication system.

Fig. 2 is the schematic diagram of the time slot position between CS concentrator shown in Fig. 1 and user terminal apparatus;

Fig. 3 is the schematic diagram according to the basic structure of PHS subscriber loop multiplex communication system of the present invention;

Fig. 4 is the schematic diagram of the time slot position between CS concentrator shown in Fig. 3 and user terminal apparatus;

Fig. 5 is the schematic diagram of the time slot position between the time division multiplexing switch sections that is arranged in the CS concentrator shown in (D+C) channel terminal part and Fig. 3;

Fig. 6 is the sample table of transmission regulated value used in the present invention;

Fig. 7 is the structural representation according to the PHS subscriber loop multiplex communication system of first embodiment of the invention;

Fig. 8 is the structural representation of (D+C) channel between the user terminal apparatus shown in CS concentrator and Fig. 7;

Fig. 9 is the block diagram of the detailed structure of the CS concentrator shown in Fig. 7;

Figure 10 is the schematic diagram of time slot position that is arranged in the time division multiplexing switch room of the CS concentrator shown in CS interface section and Fig. 7;

Figure 11 is the schematic diagram of time slot position that is arranged in the time division multiplexing switch room of the CS concentrator shown in L2 terminal part and Fig. 7;

Figure 12 is the detailed structure block diagram of the user terminal apparatus shown in Fig. 7;

Figure 13 is the schematic diagram of time slot position of the time division multiplexing switch room that is arranged in the user terminal apparatus shown in (D+C) terminal part and Fig. 7;

Figure 14 is the schematic diagram that returns disconnection information; And

Figure 15 is the structural representation of the channel C of the present invention's modification.

Below with reference to Fig. 1 and Fig. 2 traditional PHS system is described.In Fig. 1, the PHS system comprises a CS concentrator 20-1, and it comprises that a plurality of CS10-1 are to 10-N and have the circuit centralized function; A CS concentrator 20-M who comprises CS11; User terminal apparatus 30 in PHS switch; 40 and call processing devices of a network (calling NW in the following text) (calling CP in the following text) 41.Connect to the 1.5M main group transmission line of 30 of 20-M and user terminal apparatus by a plurality of CS concentrator 20-1.In Bellcore TR-TSY-000303,1.5M main group transmission line is described.In 1.5M main group transmission line, at time slot TS, as shown in Figure 2, (2B+D) channel of ISDN basic interface (calling BRI in the following text) is by time division multiplexing.In addition, in channel D time slot maintenance channel C by multiplexed.

In addition, as disclosed in TTC JT-Q931-b, known a kind of pattern is, has an interface structure for common channel D, and a certain BRI channel is used as the control channel of the channel B of another BRI in common channel D.This pattern has the interface structure of (16B+D) that use 8 BRI.

In addition, as the traffic control method of traditional PHS switch, following process is known.In this process, for exceeding disposal ability and, returning a disconnection information to the CS concentrator from switch by the defined calling/position register information of JT-Q931-b.

Above-mentioned 1.5M main group transmission line is not an economical and practical line loop method.This is because in the system that uses traditional 1.5M main group transmission line, carry out with the channel D of a single BRI calling of 16 channel B among 8 BRI is controlled, thereby seven channel D is not used.

Equally, in traditional traffic control method,, return a disconnection information to the CS concentrator from switch corresponding to calling/position register information.In the case, when the number of CS concentrator increases, just there is a kind of like this possibility, promptly because between CS concentrator and the switch and the delay in the switch, the time of excess layer 3 timers (T310) not only can disconnect new calling/location registers but also calling in can the interrupt call setting up procedure.Especially, in traditional traffic control method, when the number of CS concentrator increased and receives the call information that exceeds disposal ability, information can be waited for by sequence and being handled.Therefore, the amount of call information is many more, and the time of waiting in sequence is long more.

Below with reference to Fig. 3 and Fig. 4 PHS subscriber loop multiplex communication system according to the present invention is described.In Fig. 3, be denoted by the same reference numerals with Fig. 1 in components identical.This system comprises a CS concentrator 50-1, and it includes a plurality of CS10-1 to 10-N, and has the circuit centralized function; A CS concentrator 50-M, it contains the user terminal apparatus 60 in a CS11 and the PHS switch.Between 50-M and user terminal apparatus 60, connect at a plurality of CS concentrator 50-1 by 2M main group transmission line.In addition, in Fig. 3, three among a plurality of CS have only been provided.Similarly, in a plurality of CS concentrators two have also only been provided.The structure of CS concentrator 50-M is identical with the structure of the CS concentrator 50-1 that describes below.

Comprise CS10-1 and comprise a CS interface section 51, be used for termination by the defined interface U of ANSIT1601 to 10-N and the CS concentrator 50-1 that is positioned at than the territory, far field.L2 terminal part 52 termination TTC JT-Q921-b layers 2 stipulations.As shown in Figure 4, a 2M main group transmission line interface part 53 has interface function, and two groups to (14B+D+C) channel are multiplexed on 2M main group transmission line.(D+C) channel shown in first (D+C) channel terminal part, 54 termination Fig. 4, and communicate by TTC JT-Q921-b layer 2 stipulations and user terminal apparatus 60, and receive the transmission adjustment information from user terminal apparatus 60.

Under the control of CS Centralized Controller 56, the first time division multiplexing switching part 55 is connected CS interface section 51 with the channel D of L2 terminal part 52, (D+C) channel of the one 2M main group transmission line interface part 53 is linked to each other with first (D+C) channel terminal part 54, but also the channel B of a CS interface section 51 and a 2M main group transmission line interface part 53 is connected when setting calling.CS Centralized Controller 56 links to each other with L2 terminal part 52, the first time division multiplexing switch sections 55 and first (D+C) channel terminal part 54 and carries out the control of TTC JT-Q931-b stipulations, the control of PHS call packing and transmission adjusting control.

Below user terminal apparatus 60 will be described.User terminal apparatus 60 comprises the 2nd 2M main group transmission line interface part 61, and it is by 2M main group transmission line and CS concentrator 50-1 to 50-M termination, and as shown in Figure 4 in 2M main group transmission line two groups of (14B+D+C) channel by multiplexed.Second (D+C) channel terminal part 62 uses TTC JT-Q921-b layer 2 stipulations and CS concentrator 50-1 to 50-M to communicate, and will transmit adjusting information by the control of user terminal controller 64 is sent to CS concentrator 50-1 to 50-M in addition.

Under the control of user terminal controller 64, the second time division multiplexing switch sections 63 links to each other the 2nd 2M main group transmission line interface part 61 (D+C) channel with second (D+C) channel terminal part 62, and the channel B of the 2nd 2M main group transmission line interface part 61 and NW40 is linked to each other.User terminal controller 64 has the function that transmits TTC JT-Q931-b layer 3 information.Equally, user terminal controller 64 have management level 3 information the traffic controlled function and when the traffic surpasses predetermined threshold values, indicate CS concentrator 50-1 to 50-M to transmit the transmission adjustment information.

To describe the operation of system below in detail.By the control of CS Centralized Controller 56, the first time division multiplexing switch sections 55 links to each other the channel D of each CS of CS interface section 51 with the layer 2 stipulations connecting channel of L2 terminal part 52.In addition, setly as shown in Figure 4 link to each other with (D+C) channel time slot from first (D+C) channel terminal part 54 from (D+C) channel time slot of a 2M main group transmission line interface part 53.

Below with reference to Fig. 5 this operation is described in detail.The time slot TS1 of 2M main group transmission line interface links to each other with the time slot TSO of Fig. 5.Then, time slot TS17 links to each other with the time slot TS1 of Fig. 5.When a plurality of 2M main group transmission line interface 53 of encapsulation, can use the time slot subsequently of TS2 time slot and Fig. 5.Equally, when in 2M main group transmission line interface, needing the time slot of two or more (D+C) channel, can only change the position of time slot by the first time division multiplexing switch sections 55.

By the control of user terminal controller 64, the second time division multiplexing switch sections 63 in the user terminal apparatus 60 is with linking to each other with (D+C) channel time slot from second (D+C) channel terminal part 62 from (D+C) channel time slot of the 2nd 2M main group transmission line interface part 61 of being provided with shown in Fig. 4.

CS Centralized Controller 56 is when when a certain CS receives call information, in channel B, select to have a group in room, and the call information that will have the appointment number of vacant channels B sends the channel D that user terminal apparatus 60 is used for selected group of termination to by first (D+C) channel terminal part 54.In addition, the CS Centralized Controller 56 controls first time division multiplexing switch sections 55 will be linked to each other with the vacant channels B time slot of the first main group transmission line interface part 53 by the channel B time slot of calling out the specified CS interface section 51 of CS.In addition, when calling out disconnection, being connected when calling is set of the first time division multiplexing switch sections 55 is disconnected.

Then, user terminal controller 64 calculates the maximum magnitude of the information of call treatment in unit interval of disposal ability of user terminal apparatus 60, and calculates the amount of information of call treatment.User terminal controller 64 can processed maximum call information amount compare with the processed call information number that is calculated.When being surpassed by the information number of call treatment of being calculated in the unit interval can be by the maximum information value of call treatment, exceed constantly user terminal controller 64 at this and will transmit adjustment by (D+C) channel terminal part 62 and represent that signal is sent to all channel C that are in each relevant CS concentrator.Transmission is adjusted representation signal and is represented to transmit adjusted value.Be transmitted to transmission and adjust the CS concentrator of representation signal for receiving the CS concentrator of the amount of information that exceeds a predetermined value.This predetermined value is to determine according to the number of the CS concentrator that links to each other with user terminal apparatus 60.The transmission regulated value is directly proportional with the ratio that predetermined value is exceeded.Be higher than this ratio and be selected near the value of the regulated value of Fig. 6.

As shown in Figure 6, second (D+C) channel terminal part 62 is set on C0 on the channel C and the C1 position by the represented transmission regulated value that goes out of user terminal controller 64, and should value be sent to CS concentrator 50-1 as transmission adjusting information.In CS concentrator 50-1, CS Centralized Controller 56 reads in a cycle of fixing by the 54 received transmission of first (D+C) channel terminal part and regulates information.When detecting the transmission regulated value, return a disconnection information according to regulation rates corresponding to later call information.Equally, in order to eliminate the transmission regulated value, when time per unit call information amount to be processed is less than predetermined value, just there is not regulated value as can be seen.

Below with reference to Fig. 7 a most preferred embodiment of the present invention is described.In Fig. 7, a plurality of CS80-1 that can connect with PHS cell phone 70 faces are arranged as can be seen to 80-N.The CS concentrator 90-1 that contains a plurality of CS80-1 to 80-N is positioned at than the territory, far field.To the structure of CS concentrator 90-1 be described below.CS interface circuit 101-1 to 101-N links to each other with CS80-1 to 80-N respectively, and with 8 line terminations of the interface U that defines with ANSI T1601.The channel D of CS layer 2 control circuit 102 termination 32CS, and have the controlled function of TTCJT-Q921-b layer 2.Main group transmission line interface circuit 103 and 104 has the function that connects with user terminal apparatus 201 faces by 2M main group transmission line in switch 200, two groups of multiplexed as shown in Figure 4 (14+D+C) channel in 2M main group transmission line.Layer 2 control circuit 105 are by by controlling TTC JT-Q921-b layer 2 stipulations by two channel D that bit constituted shown in Fig. 8, and these stipulations are the communication protocol between user terminal apparatus 201 and CS concentrator 90-1.Maintenance signal receiving circuit 106 receives the channel C signal of being made up of 6 bits from user terminal apparatus 201, contains two bits of the notification transmission adjusting shown in Fig. 8 in 6 bits.As shown in Figure 8, channel C signal is made up of 6 bits, comprising 2 bits of notification transmission adjusting.

Time division multiplexing switch 107 links to each other with CS interface circuit 101-1 to 101-N, CS layer 2 control circuit 102, main group transmission line interface circuit 103 and 104, layer 2 control circuit 105 and maintenance signal receiving circuit 106 respectively by 2M time division multiplexing interface.Especially, time division multiplexing switch 107 with CS interface circuit 101-1 to 101-N be used for channel D and link to each other with CS layer 2 terminating circuit 102 that CS communicates, one in CS interface circuit 101-1 in the 101-N and the main group transmission line interface circuit 103 and 104 is linked to each other, be used for that CS is connected with the channel B of 201 of user terminal apparatus when set calling out, and main group transmission line interface circuit 103 and 104, layer 2 control circuit 105 are linked to each other with maintenance signal receiving circuit 106, be used for communicating by letter between user terminal apparatus 201 and CS concentrator 90-1.CS focuses on device 108 and links to each other with CS layer 2 control circuit 102, layer 2 control circuit 105, maintenance signal receiving circuit 106 and time division multiplexing switch 107.CS focuses on the function that device 108 has the control of TTC JT-Q931-b layer 3 stipulations, transmission adjusting control and direction/circuit selection control, and concentrates the circuit from the PHS calling of CS.

User terminal apparatus 201 comprises that main group transmission line interface circuit 202,203,204 is to 20M, they are practised physiognomy to 90-M and connect by 2M main group transmission line and CS concentrator 90-1,90-2, two groups of multiplexed as shown in Figure 4 (14B+D+C) channel in 2M main group transmission line.Layer 2 control circuit 205 are controlled TTC JT-Q921-b layer 2 stipulations by the channel D that is made up of 2 bits shown in Fig. 8, and these stipulations are to be used for the stipulations that communicate with CS concentrator 90-1.Maintenance signal transmission circuit 206 will be sent to the CS concentrator by the maintenance channel that 6 bits are formed, and wherein 6 bits comprise the transmission adjusting information shown in Fig. 6.NW interface circuit 207 can be practised physiognomy NW209 with time division multiplexing switch 210 and is connect.

Time division multiplexing switch 210 links to each other with NW interface circuit 207 with main group transmission line interface circuit 202,203,204 to 20M, layer 2 controller 205, maintenance signal transmission circuit 206 respectively by the time division multiplexing interface.More particularly, control by user terminal processes device 211, time division multiplexing switch 210 links to each other main group transmission line interface circuit 203,203,204 to 20M and carries out communicating by letter of each CS concentrator and 201 of user terminal apparatus with layer 2 control circuit 205 and maintenance signal transmission circuit 206, and the first main group transmission line interface circuit 202,203,204 to 20M linked to each other with NW interface circuit 207 finishes each CS concentrator and be connected with channel B between NW209.

User terminal processes device 211 has the function that sends TTC JT-Q931-b layer 3 information.Equally, the traffic of user terminal processes device 211 key-courses 3 information.When monitored amount of information surpassed a reservation threshold, user terminal processes device 211 indication CS concentrator 90-1 transmitted transmission adjusting information.

Come the operation of descriptive system below with reference to Fig. 9.In Fig. 9, CS interface circuit 101-1 comprises a plurality of u interface circuit 101-11 and the multiplexed split circuit 101-12 of 2M.CS layer 2 control circuit 102 comprise a plurality of L2 stipulations 102-11 and the multiplexed split circuit 102-12 of 2M.Layer 2 control circuit 105 comprise a plurality of L2 stipulations 105-11 and the multiplexed split circuit 105-12 of 2M.

As shown in Figure 9, focus on the control of device 108 by CS, each channel D time slot that time division multiplexing switch 107 will be arranged in the 2M time division multiplexing interface in each channel D time slot and CS layer 2 terminating circuit 102 that are arranged on as shown in Figure 11 in the 2M time division multiplexing interface among as shown in Figure 10 the CS interface circuit 101-1 links to each other.Equally, time division multiplexing switch 107 will be arranged on linking to each other with (D+C) channel time slot from layer 2 control circuit 105 and maintenance signal receiving circuit 106 shown in Fig. 5 with (D+C) channel time slot of 104 from main group transmission line interface circuit 103 as shown in Figure 4.

More particularly, the time slot TS1 of main group transmission line interface circuit 103 links to each other with time slot TSO, TS1, TS2 and the TS3 of layer 2 control circuit 105 and maintenance signal receiving circuit 106 respectively with TS17 with the time slot TS1 of main group transmission line interface circuit 104 with TS17.

As shown in Figure 12, layer 2 control circuit 205 in the user terminal apparatus 201 comprise a plurality of L2 stipulations 205-11 and the multiplexed split circuit 205-12 of 2M.By the control of user terminal processes device 211, the time division multiplexing switch 210 in the user terminal apparatus 201 will link to each other with (D+C) channel time slot from layer 2 control circuit 205 and maintenance signal receiving circuit 206 shown in Figure 13 from (D+C) channel time slot of main group transmission line interface circuit 202,203,204 to 20M as shown in Figure 4.The channel B time slot from main group transmission line interface circuit 202,203,204 to 20-M that time division multiplexing switch 210 will be provided with equally as shown in Figure 4 links to each other with the channel B time slot of the NW interface circuit 207 that connects with the NW209 face in the switch 200.

CS focuses on device 108 a group that has the room among the selective channel B when the call information of receiving from the PS70 that links to each other with CS interface circuit 101-1, and the call information that will have the appointment room number of channel B is sent to the channel D that user terminal apparatus 201 in the switch 200 are used for the selected group of termination by layer 2 control circuit 105.In addition, CS focuses on device 108 control time division multiplexing switches 107 and will be linked to each other with the room channel B time slot of the first main group transmission line interface circuit 103 by the channel B time slot of the CS interface circuit 101-1 that calls out the CS appointment.In addition, when disconnecting, be in being disconnected being connected of time division multiplexing switch 107 of CS interface circuit 101-1 and 103 in main group transmission line interface circuit.

Then, user terminal processes device 211 calculates the information number of the maximum calling that institute can be processed in the time per units, the disposal ability of user terminal apparatus 201 in two seconds for example, and and then calculate total information processing capacity in the calling procedure.User terminal processes device 211 with in the calling procedure can be processed the maximum number that calculates breath number compare with the information number of handling that is drawn in (in fact) calling procedure.When the information number by call treatment of being calculated in the unit interval has surpassed the treatable information of calling procedure and has counted, when exceeding, user terminal processes device 211 is sent to all channel C that are in each relevant CS concentrator with the adjusting information of representation signal by maintenance signal transmission circuit 206.Transmission is regulated the expression signal and is represented with the transmission regulated value.Be transmitted to transmission and regulate the CS concentrator of representation signal for receiving the CS concentrator of the amount of information that surpasses predetermined value.Number according to the CS concentrator that links to each other with user terminal apparatus 201 is determined predetermined value.For example, predetermined value equals the merchant of the maximum of the information that can handle in the calling procedure divided by the number gained of CS concentrator.The transmission regulated value is proportional with the ratio that exceeds predetermined value.This value is elected the value that is higher than this ratio and approaches the regulated value of Fig. 6 most as.For example, according to by (B/A) * 100% value that is calculated, wherein A represents the information number that receives and B represents predetermined value, then selects than the regulated value shown in the high Fig. 6 of the value that is calculated and transmits.

Maintenance signal transmission circuit 206 is provided with by C0 and the C1 bit regulated value represented of user terminal processes device 211 on channel C as shown in Figure 6, and sends this value to relevant CS concentrator.At the CS concentrator, CS focuses on device 108 in the fixing cycle, 100ms for example, and information is regulated in the transmission of reading on the received arbitrary channel C of maintained signal receiving circuit 106.In aforesaid CS concentrator, when from transmission adjusting information, detecting the transmission regulated value, return a disconnection information corresponding to subsequently calling/position register information and according to the regulation rates shown in Figure 14.For example, under 50% situation of regulating, transmit disconnection information corresponding to every another call information.Equally, work as time per unit, do not have regulated value when for example 2 seconds information number is less than predetermined value in order to disappear the transmission regulated value, to be pointed out that.

In addition, (14B+D+C) group of the channel group that also can be used as (nB+D+C) offers 2M main group transmission line and 1.5M main group transmission line and n-group's transmission line.Equally, for the composition of channel C, regulate progression in order to improve transmission, for such as other control information such as loopback test information, S/T point control information, the formation of 6-bit can be expanded so that the composition of n-frame or multiframe to be provided.Figure 15 shows two multiframes.

According to the present invention, use simply and the PHS system of (16B+D) channel formation of the 1.5M main group transmission line that the PHS system of more efficient 2M main group transmission line and traditional use are traditional compares and has structural superiority.More particularly, do not changing under the situation that is used for shared interface structure (16B+D) at the already used channel D of conventional P HS system, channel B, D in the 2M main group transmission line interface and C are provided with like this, have promptly reduced the timeslot number that is not used.

Equally, according to the present invention, even when the PHS system produces excessive load, also can realize the call handling capacity of being scheduled to.Specifically, by using the channel except the call control information channel, wherein the increase processing delay according to amount of information also rises, or safeguards the control information channel by what use did not rely on amount of information, can be by very fast inhibition in the quantity of CS concentrator one side's incoming call.

Claims (4)

1, a kind of PHS subscriber loop multiplex communication system, it is characterized in that wherein by linking to each other with the PHS system base-station and be connected than the PHS wireless base station concentrator in territory, far field and the 2M one main group transmission line between the user terminal apparatus in the PHS switch, and multiplexed to two groups of (14B+D+C) channel calls control groups on described 2M main group transmission line.

2, PHS subscriber loop multiplex communication system according to claim 1 is characterized in that

Described user terminal apparatus comprises the traffic on the channel D that is used to monitor the wireless station of described PHS concentrator and determines the device of traffic conditioner value and be used to safeguard that by use the channel C of control information sends determined traffic conditioner value in the device of described PHS wireless base station concentrator;

Described PHS wireless base station concentrator comprises and is used for from the device of described user terminal apparatus received communication amount regulated value and is used for according to received traffic conditioner value corresponding to the device that transmits disconnection information from calling/location registration signal of described PHS wireless base station.

3, a kind of PHS local loop is exhaled multiplex communication system more, and it comprises that one links to each other with the PHS wireless base station and is positioned at and transports the PHS wireless base station concentrator and a PHS switch that contains user terminal apparatus in zone, is characterized in that

Described PHS wireless base station concentrator comprises first interface device, it is used for to connect with described user terminal apparatus face by 2M main group transmission line, and is multiplexed to two (14B+D+C) channel calls control groups on the single transmission line in 2M main group transmission line; First (D+C) channel terminating set, it is used for termination by rely on to use TTCJT-Q921-b and described user terminal apparatus channel D that communicates and the channel C that is used for safeguarding from described user terminal apparatus reception control information; And first switching device, be used to use time-division switching that (D+C) channel information of described first (D+C) channel terminal device is linked to each other with (D+C) channel that connects on described 2M main group transmission line;

Described user terminal apparatus comprises second interface arrangement, and it connects by 2M main group transmission line and described PHS wireless base station end face, and is multiplexed to 2 (14B+D+C) channel call control groups on single transmission line in 2M main group transmission line; Second (D+C) channel terminating set, it is used for termination channel D and channel C, and wherein channel D comes to communicate with described PHS wireless base station by using TTC JT-Q921b, and channel C is used for and will safeguards that control information sends described PHS wireless base station concentrator to; And the second switch device, be used to use time-division switching with (D+C) channel information of described second (D+C) channel terminal device with on described LM main group transmission line, connect (D+C) channel and link to each other; And

In described 2M main group transmission line, two groups of (14B+D+C) are set.

4, PHS subscriber loop multiplex communication system according to claim 3 is characterized in that:

Described user terminal apparatus also comprises the adjusting indicating device, be used to monitor on the channel D of described PHS wireless base station concentrator the traffic and when detecting the traffic and exceed the disposal ability of described user terminal apparatus, according to degree of excess, concentrator sends a traffic conditioner value to described PHS wireless base station; Reach the device that described traffic conditioner value is sent to described PHS wireless base station concentrator by channel C;

Described PHS wireless base station concentrator also comprises the described device of safeguarding the described traffic conditioner value of control information reception that is used for from from described user terminal apparatus, and is used for according to received traffic conditioner value corresponding to receive the device that new calling or position register information transmit disconnection information from described PHS wireless base station; And

When described user terminal apparatus is in congestion state, except calling out the control transmission device, safeguard the control information transmitting device by using, will transmit to regulate and indicate to described PHS wireless base station concentrator.

Images