CN104205987B - The compatible channel effectively coexisted for voice and data business - Google Patents
The compatible channel effectively coexisted for voice and data business Download PDFInfo
- Publication number
- CN104205987B CN104205987B CN201180054146.9A CN201180054146A CN104205987B CN 104205987 B CN104205987 B CN 104205987B CN 201180054146 A CN201180054146 A CN 201180054146A CN 104205987 B CN104205987 B CN 104205987B
- Authority
- CN
- China
- Prior art keywords
- time slot
- channel
- circuit
- quasi
- calling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/04—Scheduled access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/121—Wireless traffic scheduling for groups of terminals or users
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/08—Trunked mobile radio systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Voice-and-data grouping is transmitted during the time slot of the quasi- circuit-mode of data physical channel.Time slot can include multiple callings, allow at the same call supervision.Additional bandwidth can provide synchronous End to End Encryption, signaling or data, and may or may not be intended to reach the receiver involved by any one of calling.Time slot mark is to belong to channel, compatible with the time slot on data channel by the header started in time slot, and includes to indicate that the information in time slot is intended to reach the indicator for the equipment for being not involved in any calling in time slot.Each calling also includes unique header, and whether which indicates the call information of calling, including include data in time slot.Individually distribution uplink channel and downlink channel.When calling or speech items terminate, data physical channel is monitored for the relevant signaling of subsequent voice calls.
Description
Technical field
The present invention relates to communication means, and in particular it relates to the method for providing speech frame in quasi- circuit-mode channel.
Background technology
Such as cellular phone or the mobile radio communications system of private mobile radio's communication system exist via infrastructure
Movement station（It is referred to as user）Between Radio Communications Link is provided.The infrastructure includes fixation means, such as one or more
A base station（BS）, controller etc..Mobile communication system is operated generally according to a set of industrial standard or agreement.This standard
Example be European Telecommunications Standards Institute（ETSI）The terrestrial trunked radio of definition（TETRA）Standard.According to TETRA standards into
The system of row operation is referred to as TETRA systems.Mainly for such as providing, those of emergency services profession is wireless to be used TETRA systems
The use at family and design.
TETRA systems use time division multiple acess（TDMA）Operating protocol, wherein communication is carried out in continuous timing architecture
It is synchronous.The timing architecture includes time slot, frame and multiframe.4 time slots form frame, and 18 frames constitute multiframe.According to sending
Signaling type, communication can be located at different types of physical channel on.For example, in control physical channel（Hereinafter referred to as
Control channel）It is upper to send for system synchronization and the control signal of control and the transmission of user grouping mode data, and in industry
The circuit mode data of voice and user is sent on business physical channel, wherein the channel comprising voice is referred to as voice physical channel
（Hereinafter referred to as voice channel）.The control channel distributed for the transmission of user grouping mode data is referred to below as data
Channel.The different time slot of these channel occupancies.Term " data " as used herein refers to comprising image, message and other data
Grouping includes audio without referring to（That is, voice/sound）Grouping.
According to the TETRA systems of existing standard operation（TETRA1）For audio communication, and provide limited slow number
According to communication.Developing a kind of new second generation TETRA standards（TETRA2）.When offer is for example for database access or image
Transmission rather than the high speed of audio communication communicate when, use these standards.A kind of form of TETRA2 standards is referred to as TETRA
Enhance data service（TEDS）Standard.TETRA1 provides uniform intervals between the RF channels of 25kHz.TEDS is orthogonal according to using
Amplitude is modulated（QAM）Desired data rates come provide can be selected in 25KHz, 50KHz, 100KHz or 150kHz it is multiple not
Same channel spacing.TETRA1 systems and TETRA2 systems can share common frequency spectrum --- for example, TETRA1 channels have
The channel width and channel center frequency of 25kHz channels are in 380.100MHz, and TEDS channels have the channel of 100kHz
Bandwidth and channel center frequency is in 380.1625MHz.Due to supporting higher modulation rate, thus TEDS can for
TETRA1 provides the coverage area of enhancing similar to the user of number, and can provide the capacity of enhancing, because can accommodate more
Largely（Voice）Calling.
In TETRA systems, it is especially desired to when in calling while sound and grouped data can be provided.In general,
Physical channel in TETRA1 systems is the frequency for including logic channel, and in the logic channel, distribution regular time slots repeat mould
Formula（That is, having the time slot of uniform delays therebetween）, to form the circuit for carrying voice or data call on the physical channel.These
Logic channel is referred to as circuit-mode channel.One audio call occupies 1 time slot per frame（1:4TDMA patterns）.Data are exhaled
It cries（Including data but do not include acoustic information）Can merge time slot, and using 1,2,3 or 4 time slot for compared with
Wide bandwidth.TETRA1 individually supports data channel and multislot packet data channel, this allows to come by using agreement appropriate
Carry the packet from multiple users.TEDS offers channel architecture identical with Packet Data Channel, but as described above,
Different channels are provided support for the different throughput capabilities of data using different modulation schemes and bandwidth.However, working as
Preceding no system can provide sound and grouped data simultaneously.
Specifically, the physical separation of the voice-and-data channel in TETRA1 systems efficiency in terms of carrying data is low.To the greatest extent
Pipe is that voice remains circuit-mode channel, but even if the channel idle, can not carry on this channel for being distributed
Calling except any user data.In addition, channel of the distribution for data transmission must can be assigned to voice
It is deallocated before calling, this is time-consuming and results in poor efficiency.Although specific TETRA2 embodiments can allow
Voice is carried in packet on data channel（For example, ip voice）, but since each high layer packets agreement needs have
Wherein include the header of the their own of specific information, causes this method opposite multiple bits of high layer packets agreement distribution
It is inefficient.In addition, any this mechanism of carrying packets of voice still needs Packet Data Channel resource on a data channel
It is continually assigned to the device of calling, due to once only can a limited number of access chance be distributed to data transmission,
Also poor efficiency is brought.
Existing TETRA schemes can carry an audio call per time slot, wherein the 2 of audio is transmitted in each time slot
A frame.Especially using higher modulation rate and the more bits of every time slot that than one audio call uses can be supported in channel
In the case of, it is expected that increased audio call number is carried, more effectively to utilize particular physical channel.It is also expected to retaining and counting
It is believed that the compatibility in road and the ability in the channel mixing voice-and-data（Sound and grouped data are provided）, and
It is not to distribute individual channel to different types of information.
Description of the drawings
In each independent view of attached drawing, identical reference numeral indicates identical or functionally similar element, attached
Figure is incorporated into specification together with following detailed description and forms part of specification, and general for further illustrating
The embodiment of thought and the various principle and advantages for being used to explain those embodiments.
Fig. 1 illustrates the embodiments of communication system.
Fig. 2 illustrates the internal frame diagram of the embodiment of communication equipment.
Fig. 3 shows one embodiment of the timing diagram of quasi- circuit-mode channel.
Fig. 4 shows one embodiment of the flow chart of BTS.
Fig. 5 shows one embodiment of the flow chart of movement station.
Suitably illustrate that device and method component, attached drawing are illustrated only and managed by conventional symbol in the accompanying drawings
Those of the related specific detail of illustrated embodiment is solved, not make the disclosure and this field for benefiting from benefit described here
Those of those of ordinary skill to will be apparent those details mutually chaotic.Therefore it is public that there may be such as those skilled in the art
The other elements known.
Specific implementation mode
Describe communication means and communication equipment and communication system, wherein during the time slot of quasi- circuit-mode channel
Transmit voice and/or data.Quasi- circuit-mode channel is based upon on the physical channel of bearer data transmission, and therefore can be with
It is logical control channel（Because usually data can be carried in control channel type）.When quasi- circuit-mode channel is using routine
Gap repetition rate, but lower layer's header（Such as MAC header）As the prefix of each time slot, lower layer's header use with for number
It is believed that the identical format of equivalent header for the grouping that the data on road use, and can only be header, and therefore can be with number
It is believed that the transmission of other grouped datas is compatible on road.Packets of voice in time slot is not encapsulated in packet, to eliminate
Above-mentioned poor efficiency.Time slot can include multiple speech frames, and can include multiple callings.The reception function of such as movement station
Enough while monitoring these callings.Data in time slot may or may be not intended to reach the time slot calling any one
In involved communication equipment.In addition to data（Or the replacement as data）, additional bandwidth（More than being only used in a slot
Transmit the bandwidth of voice）It may be used to provide End to End Encryption synchronization or signaling.In addition, signaling can in data physical channel
Other callings it is related, and be addressed to the communication equipment for being not engaged in any calling in this timeslot.
Lower layer's header at time slot beginning includes various indicators, to indicate including to be intended to reach to be not engaged in the time slot
The information of the communication equipment of any calling in time slot.The header can also include about on associated with downlink time slots
Then the information of the state of uplink time slots, the header can be used by receiver.Each calling can also include unique header,
Whether the uniqueness header indicates the call information of the calling, such as the data of receiver comprising in a slot.In transmitter
Uplink channel and downlink channel between receiver can be also assigned separately so that be distributed different callings
Corresponding time slot.Ongoing calling is participated in if the communication equipment of quasi- circuit-mode call cannot be participated in, in circuit
Another calling is established on mode channel, and suitably keeps ongoing calling, or again by ongoing calling
Assign to circuit-mode channel.Similarly, if the communication equipment that cannot participate in quasi- circuit-mode call leaves traditional circuit mould
Calling on formula channel, and the every other communication equipment called can participate in quasi- circuit-mode call, then by calling weight
Newly assign to quasi- circuit-mode channel.
Fig. 1 illustrates the general networkings 100 including infrastructure 110.There are the members of many distributions in infrastructure 110
Part, some parts are closer to each other, other are arranged to geographically away from each other.Such element includes base station 120, for side
Just one of those is illustrated only.The one or more subscribers 130 in overlay area serviced by base station 120, each base station 120
The connection to the other equipment in same coverage area or in distinct coverage region is provided by infrastructure 110.
Subscriber 130 may, for example, be such as cellular phone, personal digital assistant or the movement station used by ambulance paramedic.
One in communication equipment is shown in a block diagram of fig. 2（For example, base station 120 or subscriber 140）Embodiment.In addition to
Other assemblies, communication equipment 200 can include the transmitting-receiving that processor 202 includes transmitter circuitry 206 and receiver circuit 208
Device 204, antenna 222, I/O equipment 212, program storage 214, buffer memory 216, one or more communication interfaces 218
With portable storage tank 220.Transmitter circuitry 206 and receiver circuit 208 allow communication equipment to be desirably used as transmitter
（Transmit information）Or receiver（Receive information）.Communication equipment 200 is preferably integrated unit, and at least can include figure
2 discribed all elements and make communication equipment 200 execute the required any other element of its electric function.Electronic component
It is connected by bus 224.
Processor 202 includes one or more microprocessors, microcontroller, DSP, state machine, logic circuit or is based on behaviour
Make or programming instruction handles any other equipment or multiple equipment of information.Such operation or programming instruction are stored in journey
In sequence memory 214, and it may include instruction（The estimation and correction and executed by processor 202 that such as docking is collected mail number
Encryption/decryption）And with transmission the relevant information of signal（Such as modulation, tranmitting frequency or signal amplitude）.Program storage
214 can be IC memory chips, including any type of random access memory（RAM）And/or read-only memory（ROM）、
Floppy disk, CD（CD）ROM, hard disk, digital video disc（DVD）, flash memory card or for store digital information it is any its
His medium.Those skilled in the art are it will be recognized that when the one or more functions of processor 202 are by state machine or logic
When circuit executes, including the memory 214 of corresponding operating instruction can be embedded in state machine or logic circuit.In detail below
The operation of the rest part execution of processor 202 and communication equipment 200 is described.
Transmitter circuitry 206 and receiver circuit 208 enable communication equipment 200 to be respectively transmitted and receive communication letter
Number.In this regard, transmitter circuitry 206 and receiver circuit 208 include the proper circuit that can be wirelessly transferred.Transmitter circuitry
206 and receiver circuit 208 realization of the realization depending on communication equipment 200 and the equipment being in communication with.For example, root
According to known technology, transmitter circuitry 206 and receiver circuit 208 may be implemented as the one of communication equipment hardware and software architecture
Part.Those skilled in the art will recognize that the major part of transmitter circuitry 206 or receiver circuit 208 rather than whole
Function can be in processor（Such as processor 202）Middle realization.However, processor 202, transmitter circuitry 206 and reception are electromechanical
Road 208 is artificially separated herein, to promote to more fully understand.Buffer memory 206 can be any type of volatibility
Memory, such as RAM, and the information for receiving or transmitting for interim storage.
Communication equipment 200 can also include a variety of I/O equipment, such as keyboard with alphanumeric key；Display（Example
Such as, LED, OLED）, show the information about communication equipment or with the relevant communication of communication equipment；Soft key and/or hardkey；It touches
Touch screen；Control stick；Microphone and loud speaker.
As above, it is intended to provide significantly more efficient channel to use, realize to multiple and different voice transmissions（Independent equipment-is set
Standby transmission or multicast device are transmitted to multiple equipment）While monitor, and realize voice is transmitted in same logical channel
And data.Multiple or whole time slots of the quasi- circuit-mode channel occupancy physical channel of logic, and using suitable and provide
The modulation scheme of high power capacity, for example, TEDS channels.Loaded packet data and signaling on the physical channel in a conventional manner（That is, its
Including with formatting and error correction with TETRA2 Packet Data Channel similar modes）, and grouped data and signaling use biography
System agreement, such as media access control（MAC）, logic link control（LLC）, mobile link entity（MLE）It is related to sub-network
Convergence protocol（SNDCP）（When needed）.The above-mentioned logic channel for being defined as regular time slot pattern can be preserved for controlling
Activity.Base station, which can fix the modulation of the all-calls carried on the physical channel, either data rate or can pass through this
Mechanism known to field dynamically or adaptively changes them.Modulation and data speed adjust can institutes on the physical channel
The calling of carrying starts or occurs during calling.
Fig. 3 describe exemplary time periods during transmission embodiment.Show multiple descending chain circuit frames（From base station to
Movement station（It is multiple）Transmission）And uplink frame（From a movement station to the transmission of base station）.When each frame includes 4
Gap.Although each time slot on the uplink can include various audio calls and/or data, only show for convenience
One such time slot.Adjacent time-slots can use different modulation schemes, and therefore have different capabilities.
When the bandwidth for one or more callings is distributed in base station in a slot, may distribution ratio voice individually need
Bandwidth bigger bandwidth.Additional bandwidth can be used for sending end-to-end encryption synchronisation, and end to end security was synchronized usually as generation
Frame is stolen for voice（stolen frame）Carried（That is, voice data is deleted and is encrypted synchronous replace）.If replaced
Generation ground sends end-to-end encryption synchronisation in extra bandwidth, should then can be carried in the case where not stealing any voice messaging
End to End Encryption synchronizes, therefore improves transmission quality.The data volume sent in calling increases, this can by lower layer's header or
Unique call header uses signal transmission.
Compare audio call since base station can provide in time slot（It is multiple）The bandwidth of required bandwidth bigger, therefore time slot
At least some of remainder can be used for transmission data.Although mainly sending number to movement station in a call using time slot
Movement station is allowed to receive voice-and-data simultaneously according to this, but data can be sent to other movements for being not engaged in calling
It stands.In this case, as time slot prefix（That is, at the beginning of time slot）Lower layer（For example, MAC layer）Ratio is set in header
Special or label.Downlink communication equipment notice of the bit/label to such as movement station of scanning time slot etc：In the time slot
Also include for having been assigned to the shifting except those of the time slot of a part as quasi- circuit-mode channel movement station
The data at dynamic station.Term lower layer refers to layer 1 or layer 2 in osi model.
Similarly, base station can also be somebody's turn to do using at least some of remainder of time slot for being addressed to not use
Time slot participates in the signaling of the movement station of calling.Such signaling can be related to other callings on physical channel.In the situation
Under, signalling indicator can be used in the MAC header that time slot starts, to indicate that time slot includes to be addressed in time slot to carry just
In the signaling for those of call the movement station except movement station, and those of call movement station and so knows that
They have been assigned to the time slot of the part as quasi- circuit-mode channel.
In addition, when in identical time slot including multiple callings, each calling can be added using identical or different key
Close air interface.If call identifier each calls for identification, it is used as key modifier so that for every
Encryption key stream is different for a calling.This can contribute to prevent exterior from attacking downlink information in turn
It hits.
If movement station it is expected that transmission data, base station can allow movement station distributing to outside quasi- circuit-mode channel
It is managed herein on any free timeslot of the physical channel of data.The biography of the resource in the distribution is only accessed with wherein movement station
The circuit-mode channel distribution of system is different, this also allows to be carried out at the same time voice-and-data operation outside the channel of distribution.In movement
It stands while participating in the calling on quasi- circuit-mode channel, base station is for example according to the configuration number being stored in system database
It, can be to movement station point according to, some ability informations for being exchanged when either being registered according to movement station or by some other modes
It is used in the time slot of data transmission.The ability that movement station sent in particular time-slot or received data can depend on movement station
Physical parameter, switch such as between reception pattern and emission mode the time it takes or duplexer filter presence or
Other parameters.
In figure 3, quasi- circuit-mode channel is shown as the logic letter established on the otherwise physical channel of carrying data
Road, and since data can be carried on a control channel, quasi- current mode logic letter can be established in logical control channel
Road.In quasi- circuit-mode channel, the mode of voice and/or data in order is transmitted, but can have any predetermined week
Phase property, and be not limited to using the identical time slot in every frame.When being assigned with channel and movement station is assigned to the channel,
To in the distribution of channel, periodically and the absolute standard for time slot is indicated to movement station, and wherein benchmark indicates the time slot
Frame or time-gap number.Benchmark can be used for being used for the first time slot of the channel, or for distributing to the subsequent of the channel
Frame and time slot.Each time slot of channel is distributed to come from least one of standard TETRA protocol stacks header（Such as MAC
Header）For preamble, this allow the time slot remain able to by using only physical channel for data and currently without being assigned to quasi- electricity
The movement station of road mode channel identifies.Quasi- circuit-mode channel is similar with preferred circuit switched data channel, but is not only to cover
Voice in lid data frame.In the specific embodiment shown, every 6 time slots are grouped comprising voice and data.It can be seen that phase
Different time-gap in adjacent frame（If there is）Including voice and data is grouped.In other words, in circuit-mode call to phase
The legacy system that the identical time slot in each frame is distributed with sound or data transmission is different, in the consecutive frame of quasi- circuit-mode call
In the time slot for distributing to sound/packet can be different, and transmission collection can not be included in any time slot by particular frame
In.For example, in figure 3, since every 6 time slots include sound/data transmission, the pattern that every 3 time slots duplicate：The first,
Second time slot of the four, 7th etc. frames is transmitted comprising these, and the 4th time slot of second, the five, 8th etc. frames is transmitted comprising these,
And third, the six, 9th etc. frames do not include sound/data transmission.
It sees in isolation, as long as initial frame, time slot and periodicity are all transmitted to movement station, the periodicity of quasi- circuit-mode channel
With regard to unrestricted.However, if it is desired that with other quasi- circuit-mode channels or circuit-mode channel, then only specific period be can
.It, periodically can be with for example, if the second quasi- circuit-mode channel is added to quasi- circuit-mode channel shown in Fig. 3
It is identical as the periodicity that the first quasi- circuit-mode channel uses（That is, every 6 time slots）Either the first quasi- circuit-mode channel makes
Periodic multiple（For example, every 12 time slots）, but the time slot to be used with the first quasi- circuit-mode channel（That is, the
Two time slots and the 4th time slot）Different time slots start.Alternatively, the second quasi- circuit-mode channel, which can have, is used only the first standard
Circuit-mode channel is from not used time slot（That is, the first time slot and third time slot）Any periodicity.
The periodicity of quasi- circuit-mode channel may include or ignore the time slot in the specific signaling frame in multiframe.
For example, if the signaling frame of multiframe（Frame 18）It is excluded, then in 6 repeat patterns of the time slot 1 of the TDMA frame 1 of multiframe 1 beginning
A time slot will distribute the time slot 3 in frame 2, time slot 1 in frame 4 etc. until the time slot 3 in frame 17.However, more as distributing
The replacement of time slot 1 in the frame 1 of frame 2（If 4 time slots of frame 18 are counted into, than 3 late 6 time slots of time slot in frame 17 into
Row distribution）, next time slot of distribution is the time slot 1 in the frame 2 of multiframe 2.
As a part for call setup instruction, base station provides voice to the movement station for participating in the calling and is packaged instruction.Language
Sound is packaged the number that pattern instruction is bundled to the speech frame in a time slot.The number of the speech frame can be that a speech frame arrives
The speech frame of any predetermined quantity, such as 2,3,4 or 8.It clear specified speech can be packaged during channel assignment
Pattern, and can in the header information in specified time slot repeat the voice be packaged pattern, or can by reference to when
Gap carrys out impliedly specified speech periodically through channel assignment and is packaged pattern.For example, using standard TETRA vocoders
（vocoder）, MS 2 speech frames of every 4 time slots transmission（Therefore, Mean Speed is every 2 time slots, 1 speech frame）, therefore in 6
1 time slot in it is periodic distribution can imply that MS sends 3 speech frames in each time slot.Other vocoders can have
There is different transmission rates, but can imply according to the mark of vocoder types and periodical this of quasi- circuit-mode channel
's.A large amount of speech frames in each time slot allow longer time slot repeat pattern, and therefore movement station is less believed using physics
Road, however, this may also increase due to the needs of the number for accumulating the audio frame from vocoder in real time before rendering
Add the audio frequency delay of calling.
In addition in each downlink time slots of quasi- circuit-mode call voice and/or data other than, there is also differences
The header of type.Time slot includes overall header at the time slot beginning, for example, MAC header.The header enables movement station will
The time slot identification subject to circuit-mode channel a part, and also assure it is compatible with other packet data users of channel,
The reason is that the header allows only to need packet data service or is not provided as supporting voice channel point on a data channel
The movement station identification time slot matched is assigned to quasi- circuit-mode channel and therefore ignores the content of the time slot, or allows the movement
It stands and is identified as the time slot therefore to ignore time slot based on these reasons comprising some form of data for not addressing it
Content.In another embodiment, MAC header each of can be assigned in quasi- circuit-mode channel individual calling, to permit
Perhaps movement station searches for each protocol Data Unit（PDU）To find other kinds of information.Uplink from movement station passes
It is defeated to may not be needed with MAC header, the reason is that, the use of uplink is by base station assigned, and therefore base station is known
The movement station that is transmitted and the calling that wherein movement station is being transmitted.However, when in the confirmation of MAC header assistant base station
MAC header or MAC header can be applied to can be adapted for detecting another user accidentally on same channel when downlink message
The conflict being transmitted.
MAC header（Or each header associated with speech frame below）Can include status indicator, the state instruction
Symbol instruction uplink associated with downlink time slots when there is uplink time slot associated with downlink time slots
The state of channel time slot.This can indicate that associated uplink time slot is idle or busy.Free time instruction will allow to move
It stands and sends random access information and/data while receiving calling on the uplink, this wants to carry out data biography in movement station
It is defeated（Such as send AVL data）When be advantageous.Uplink time slot associated with downlink time slots can follow fixation
Rule, two time slots more late than downlink time slots such as in absolute time, or with its position determined by Cell Broadcast CB
It sets or in the position that calling starts.
It is speech frame after MAC header in time slot.Speech frame may include for each calling each header and
The voice of calling.One calling or more than one calling can be assigned to same channel by base station.If time slot will use high speed
Rate modulation scheme, such as 16QAM or 64QAM, then compared with supporting the required capacity of individual call, in quasi- circuit-mode channel
It is interior that there may be the capacity of bigger.It, should if there are multiple callings, each calling to include unique header in identical time slot
Call information of unique header instruction for the calling, which may include following information：It is held in type of call, time slot
Whether the number of the speech frame of load has and steals frame, sequence number information when there are multiple speech frames, phase instead of any of speech frame
Whether the recipient of prestige, calling are encrypted and the type of codec that is encoded to the voice in calling and for referring to
Show the data indicator with the presence or absence of data.
One or more of call header can also identify the content for being designated as " first " and " second " half slot
Speech frame allows to transmit same voice frame from the base stations TETRA1 with compatibility mode, in accordance with the TETRA1 rules for being used for transmission frame steathily.
One or more of header can include length indicator, which carries multiple callings in identical time slot
When, allow movement station to calculate the beginning of latter speech frame according to previous speech frame.It, can for the capacity in call release header
The mark for negotiating codec with call establishment stage between the mobile stations and the base stations, without the information is placed in call header
In.Therefore, movement station can be decoded call header, and call phase with itself by searching for relevant identifier to search for
The information of pass.If desired, then movement station can scan the movement station and be the calling of its member, or ignores the movement station and be not
The calling of its member.
Such as show, can only arrange the packet of a set in a slot（Calling 1）, this allows to use in a call single
A data indicator indicates only calling for including data.It is no except non-mobile station determines that data will exist for it
Then when movement station is undesirable searches for the data, the use of data indicator saves the power of movement station.For entire time slot
May include a data indicator, and the data indicator can be contained in MAC header or data indicator can
Each of to be included in time slot in the call header called.Data can be placed in any point after data indicator.
In another embodiment, the first part of time slot is used for the calling with related data（If there is）.Therefore, in the embodiment
In, the voice transmission in quasi- circuit-mode channel can adjust position according to frame（And when each header identification time slot
The use to data indicator can be eliminated when voice transmission in first part）.In other embodiments, it can transmit multiple
Data acquisition system, in this case, data indicator can include multiple bits, in multiple bit such as indicator data field
The position of data for each calling.Alternatively, each data acquisition system can include the header of instruction associated call.
In addition, corresponding time slot（Such as show, when version according to the version 3 of TETRA standards or earlier is delayed by two
Gap（But other configurations are possible）To allow the MS without duplex transmitter/receiver to carry out duplex calls）Uplink
Link can be assigned to different callings.The different calling can use or can not use quasi- circuit-mode channel, and
Can be according to Packet Data Channel and if do not used（Or the control channel of loaded packet data）General Mechanism refer to
Another grouped data time slot matched.For example, movement station can be assigned the first half slot or the second half slot or entire physics
Subchannel bandwidth in channel：The example of the latter distribution can be that entire physical channel occupies 50kHz, movement station can only by
Distribute to the upper 25kHz or lower 25kHz of the channel.Base station can send uplink instruction in corresponding downlink time slots
Symbol whether there is data to determine in uplink time slot.If uplink time slot is idle, movement station can transmit number
According to for example, to help the movement station in calling to send random access data.Therefore, once base station establishes quasi- circuit-mode letter
First time slot and periodicity in road（And this is transmitted to movement station）, then because particular time-slot has existed, it is mobile
Standing can be to avoid the particular time-slot from base station requests for transmission data.
As above, if movement station it is expected that data are sent or received outside quasi- circuit-mode channel, base station can be to movement
Stand assignment its know time slot in the limit of power in movement station.For example, if shown in fig. 3, movement station is participated in frame 1
Calling in 2 time slot 4 of time slot 2 and frame, then movement station can not prevent movement station in 1 time slot 2 of frame and 2 time slot 4 of frame in uplink
2 time slot 2 and 3 of data frame is received in the case of being transmitted in link.Similarly, movement station can not prevent movement station
It is received in identified 2 time slot 4 of 1 time slot 2 of frame and frame and transmits number on uplink in 1 time slot 3 and 4 of frame in the case of calling
According to.
Fig. 4 depicts one embodiment of the block diagram of the operating method of base station.When movement station it is expected to call, in step
At 402, base station receives the request about the calling from movement station.Movement station may include information, channel class such as to be used
Type, if in addition there is the data to be transmitted and its maximum data rate being able to maintain that（For example, based on the strong of base station signal
Degree）.At least some of the information or at least some of the information can be retransmitted whenever movement station request call can be with
Be stored in the base station for specific movement station, and for from the movement station for each new calling calling or use
In the new calling in predetermined time amount so that base station confirms that maximum data rate/BS signal strengths are not substantially change.
At step 404, base station determines whether there is existing quasi- circuit-mode channel currently in use, and if deposits
Then at step 406, determining whether movement station has been supplied audio communication on one or more existing channels.Such as
Fruit movement station is receiving other one or more callings, then base station can manage new calling so that new calling in phase
Other callings in cochannel are provided together.Even if user monitoring another calling this if allow movement station while to scan
All-calls in one time slot.At step 408.Base station determines whether channel can support movement station demand（For example, data
Rate）, and determine whether the remaining time slots in time slot can be used.When channel can support movement station, at step 410, base
It stands and determines that time slot in time slot is available.If there is one or more channels, but movement station is currently without believing
The demand for being unsatisfactory for movement station from base station reception data or channel on road or the space without being used for movement station, then in step
At 412, base station determines the new quasi- circuit-mode channel not clashed with any existing channel.Whether exist and be used
Existing quasi- circuit-mode or circuit-mode channel, no matter and in the presence of movement station whether can use existing quasi- circuit mould
One in formula channel, the channel and the time slot in time slot for carrying this voice in step 414, base station distribution, and then,
Step 416 place transmits call setup information to movement station.Once base station is assigned with quasi- circuit-mode channel, channel is maintained for standard
Perhaps until calling is completed.This eliminates the other channel point to the communication unit signal transmission for participating in calling at regular intervals
Match, which is needed in the calling of pure group mode.
It reiterates, quasi- circuit-mode channel has regular time slot pattern, and overlaps the physical channel of carrying data
On.Any value may be used in time slot repeat pattern, for example, each time slot, when a time slot in two, one in three
Gap, a time slot in four（As current TETRA is used）Deng.Therefore, the quasi- circuit distributed to movement station transmission when base station
When mode channel, the time slot being used for transmission not only is indicated, also indicate the periodicity of quasi- circuit-mode channel.Base station is into movement station
After slotted mode what will be, and when carry out and how to call it to be transmitted.Similarly, when calling will be by movement station
（For example, the member as call service group）When being received on quasi- circuit-mode channel, base station is called to movement station transmission to be started,
When will start（Frame and time slot）And periodically.The movement station for being assigned to calling is sent to physics and logic channel, with
Voice is sent and received when appropriate.
After the original allocation of the quasi- circuit-mode channel of bearing call, additional channel distribution can also be sent, such as
To allow other movement stations to enter calling later.The distribution of these additional channels, which sends latter time slot and is used as, makes movement station that channel be added
Starting point, but same period.
It is different from wherein pairs of distribution uplink channel and the legacy system of downlink channel, it can be in uplink
With time slot is independently assigned on downlink so that when movement station is when particular time-slot is transmitted to base station, from base station
Identical time slot to other members of the group belonging to the movement station being transmitted for for example relaying audio.However, if depositing
In multiple movement stations that tool channel with a grain of salt is still being received rather than is transmitted, then this wastes power system capacity.Here,
Uplink channel and downlink channel are distributed respectively so that if movement station is in one time slot on uplink to base
Station is transmitted, then corresponding time slot will not be assigned to be transmitted to other movement stations on a downlink channel.In addition,
Different time-gap repeat pattern can be assigned to the uplink and downlink of the same call of carrying same base.It can be by
According to the only one or the two it is expected in assignment uplink or downlink.
When base station receives voice packets from movement station at step 418, at step 420, base station creates or from storage
Unique header of the retrieval for the voice packets in storage.If base station further defines at step 422 and is connect from movement station
Receiving data and time slot has the space of transmission data, then at step 424, base station by data include in a slot, and
The indicator that instruction has the data for receiving calling in a slot for other movement stations is provided in the header for the calling.
Then, at step 426, time slot is transmitted in base station to movement station.At step 428, base station transmits according to movement station and determines calling
Whether processing is over, and if terminated, new calling is waited for, transmits time slot on quasi- circuit-mode channel on demand.Such as
Fruit calling is not over, then at step 430, base station determines whether that movement station retransmits quasi- circuit-mode channel information, and
It carries out retransmitting or receiving at step 418 new voice packets data at step 416.It can often repeat about channel point
The information matched is called, that is, the situation that evening enters with allowing movement station to enter after calling has begun.
Calling is gone to complete：It is usually complete in movement station if being assigned with circuit-mode channel in conventional systems
At some periods after transmission voice packets（Usually several seconds suspension times）Circuit-mode channel keeps being assigned.This
Sample supports continuity so that when switching immediately, channel will not be lost, and avoid another movement station and it is expected to the movement station
Generated delay when being replied, and therefore have to wait for channel of next control channel arrival please look for novelty.Use the extension
The operation for playing the time is referred to as message trunking, and when movement station again access control channel is to continue calling without hanging up when
Between operation be referred to as transmission trunking.However, because being transmitted or being occurred without to this any guarantee in no voice packets
In the case of channel still maintain assigned, so the use of message trunking and suspension time also wastes power system capacity.
System described here allows to transmit in any available transmission opportunity of the movement station in entire data physical channel
Start the request of its answer.These opportunitys can free timeslot present on the uplink in data physical channel（Including this
The idle gap of quasi- circuit-mode channel or other quasi- circuit-mode channels）Any position.Because other movement stations is made to pass
It send the increase number on the opportunity for starting the request that it is replied to improve rapid system to access again and for the fast of new calling
The probability of fast channel distribution, so this allows channel to be deallocated and redistributed immediately（As quasi- circuit-mode channel
Or carrying ordinary groups mode data transmission）.Base station can retain across multiple uplink time slots on entire physical channel,
To assist the request of other movement stations to continue to call；This in message trunking system operatio can the loss of energy some uplink efficiency,
But it is that of obtaining downlink efficiency.Similarly, base station can be on any downlink transmission opportunity on entire physical channel
Channels distribution is uploaded to call to continue or restart.This avoids the use to suspension time and increase system appearance
Amount.Movement station and base station can use entire physical channel in some predetermined times after precedent transmission or end of calling.
The predetermined time may be programmed into movement station or can be transmitted by base station.
Fig. 5 depicts one embodiment of the block diagram of the operating method of movement station.At step 502, movement station receives accurate
Information is established in circuit-mode channel call, includes the periodicity of start frame and time slot and quasi- circuit-mode channel.In step 504
Place, movement station wait for distributed time slot, movement station to receive the time slot at step 506.Reading entire header and determination
Time slot is data channel（With voice packets）Later, movement station reads the first independent call header at step 508.If
Movement station determines that call header reaches the voice packets of movement station for being intended at step 510, then at step 512, inspection
It looks into determine whether there is the indicator that instruction has the data for movement station.If there is indicator, then in step 514
Place, movement station storage will be from the further part of time slot（And it if it exists, will be from the position in time slot）The number of middle retrieval
According to.If the first calling is not intended to reach movement station or indicator is not present, at step 516, movement station determination is
It is no to there is any calling to be scanned.If movement station determines there are more callings, at step 518, back to step
Before 508 movement stations read next call header, movement station is moved to next call header.
Once having scanned all-calls and storage/reproduction voice packets, at step 520, movement station determines
Whether the time slot includes to be intended to reach any data of the movement station.If do not included, movement station, which returns to, waits for quasi- circuit
Next time slot of mode channel（Assuming that there is the grouping for being intended to reach movement station without other time slots）Step 504.If number
According to presence, then at step 522, movement station determines whether the packet of first set is intended to reach the movement station（For example, logical
Cross the position for checking datagram header or data in time slot）, and if it is, at step 524 storage or otherwise
Use the data.If the packet of first set is not intended to reach movement station, or is intended to reach movement station using
After data, at step 526, movement station, which determines, whether there is any packet more gathered in time slot.If there is
More set, then at step 528, movement station continues the packet of next set and returns to the number for determining next set
Whether it is intended to reach the step 522 of the movement station according to grouping.After having scanned all packets, at step 530,
Movement station removes any indicator before returning to waiting for the step 504 of next time slot of quasi- circuit-mode channel.If time slot
Middle there are the packets of only one set, then can be omitted the cycle of the formation of step 522,526 and 528 so that movement station is only
Data are read at step 524 after the data in determining time slot are intended to reach the movement station.
As described above, although since the poor efficiency of protocol overhead is it is not expected that air interface between the base station and the mobile station
It is middle to use ip voice（Or other similar agreements）, but it is advantageous that, by the encapsulating voice frames of interface bearing in the air at IP points
In group, for by base station to fixed network or by movement station to the equipment for being connected to its data port further transmission,
And movement station or base station is set to receive the speech frame being encapsulated in IP, and using being passed in quasi- circuit-mode channel in the air interface
Give these speech frames.In other words, IP is not used in view of interface in the air, speech frame is encapsulated in IP to be passed for forward direction
It is defeated.Call setup information can carry the information of the IP used outside air interface, and by itself and the phase that is used at air interface
It is related to close call identifier, and base station and movement station can re-create other agreements outside IP or air interface point with this
Group stream.Sequence number in air interface frame can be used to ensure that the continuity of external protocol.In addition, in some embodiments
In, some speech frames can be encapsulated in packet on quasi- circuit-mode channel.
For only in the movement station involved in quasi- circuit-mode channel, at the end of the speech items in calling, in a reality
Apply in example, movement station can be allowed to be kept for the short period in quasi- circuit-mode channel, with allow further exchange of signaling or after
It is continuous to be called with new session side.However, in various embodiments, movement station can leave channel immediately, and if exhale
Continuation is cried, then is assigned new channel（That is, using message trunking）.In order to allow quickly to receive the quick extensive of signaling and calling
Multiple, movement station can monitor entire data channel for additional signaling in the period after calling or speech items terminate, i.e.,
Each time slot of physical channel is monitored for the relevant signaling of recovery with calling.This includes that other logics are distributed in monitoring
（Quasi- circuit-mode or circuit-mode）The content of other time slots of channel.
If establishing calling using the quasi- circuit-mode channel on physical channel, all movement stations can participate in this way
Calling.If cell is added in the movement station that cannot participate in quasi- circuit-mode call, for example, if movement station can only be supported
Circuit-mode call on TETRA1 channels, then base station can passed while the calling on retaining quasi- circuit-mode channel
Circuit-mode channel of uniting establishes the second calling for the movement station.Alternatively, base station can be by movement station from quasi- circuit-mode
Channel assigns to traditional circuit mode channel, therefore the resource in release data channel again.If believed in traditional circuit pattern
Calling is established on road and the movement station that cannot be operated on the quasi- circuit-mode channel of data channel leaves, then base station can
Quasi- circuit-mode channel is assigned to again will call, to discharge the resource on traditional circuit mode channel.
Although having specifically discussed using 1:The TETRA systems of 4TDMA patterns, but above-described embodiment can be adapted for
Other systems.Such technology can provide various different frame repeat patterns；For example, iDEN systems can use it is a variety of different
Frame rate and broadcast its present mode to subscriber, and for different types of calling currently used 3:1TDMA and 6:
1TDMA。
In addition, though voice application has been described in the use description of the above alignment circuit mode channel, it is clear that
It is that any type of circuit mode data, such as video can be carried on such channel.
In various embodiments, provide the communication between transmitter and receiver in a communications system method and
Transmitter and receiver and communication system.In these embodiments, timing includes frame, and each frame includes time slot.In data
During the time slot of quasi- circuit-mode channel on channel voice and/or data are transmitted from transmitter to receiver.It is assisted by lower layer
Header is discussed to time slot prefixing, which allows the distribution of voice-and-data in time slot, and ensure the time slot with
The compatibility that other time slots on data channel use.The information is received by receiver, and receiver determines time slot using header
In various information.Note that each method of description has the transmitter and receiver for executing communication function using correlation method.
In various embodiments, disclosed method may be implemented as the computer program used for computer system
Product.Such realization may include in such as computer-readable medium（For example, disk, CD-ROM, ROM or fixed disk）Have
Fixed series of computation machine instruction, is either connected to network via modem or such as by medium on shape medium
Other interface equipments of communication adapter can transmit the series of computation machine instruction of computer system.The medium can be tangible
Medium（For example, light or analog communications lines）Or pass through wireless technology（For example, microwave, infrared ray or other transmission technologys）It realizes
Medium.The series of computer instructions is realized previously herein with reference to all or part of function of System describe.The technology of this field
Personnel will be understood that, can write such meter for a variety of programming languages used by many computer architectures or operating system
Calculation machine instructs.In addition, such instruction can be stored in any memory devices, such as semiconductor, magnetic, light or other deposit
In storage device, and this can be transmitted using any communication technology of such as light, infrared ray, microwave or other transmission technologys
The instruction of sample.It is expected that such computer program product can be distributed as removable medium, there is printing or electronic document（Example
Such as, software packaging is compressed）, it is preloaded with computer system（For example, on system ROM or fixed disks）, or pass through network（Example
Such as, internet or WWW）It is distributed from server or electronic bulletin board.Certainly, some embodiments of the present invention can be implemented
For software（For example, computer program product）With the combination of both hardware.The other embodiment of the present invention can be completely by hardware
Or completely by software（For example, computer program product）It realizes.
It should be understood that terms and expressions used herein are with corresponding each relative to it by those skilled in the art
The typical art-recognized meanings of such terms and expressions are given in the investigation and research in region, unless in addition elaborating herein different
Specific meaning.The relational terms such as first and second are only used for either acting an entity and another entity or action
It distinguishes, without inevitable requirement or implies any actual such relationship between such entity or behavior or suitable
Sequence.Term " comprising " or its any other deformation are intended to nonexcludability and include so that process, side including a column element
Method, object or device include not only these units, can also include not expressly listed element or this class process, method, object
Part or the intrinsic element of device.It is not precluded in the absence of more restrictions including this yuan with the unit that " one " guides
There are other identical elements in the process of part, method, object or device.
Those skilled in the art will recognize that the case where not departing from the scope of the present invention of appended claims elaboration
Under can to above-described embodiment carry out it is a variety of modification, change and combination, and it is such modification, change and combination be considered and fall into
In the range of concept of the present invention.Therefore, the description and the appended drawings are considered illustrative and not restrictive, all this modifications
It is to be considered as included in the scope of the present invention.Benefit, advantage for solution to the problem and can make any benefit, excellent
Point either solution occur or any one or more elements for becoming more fully apparent be not necessarily to be construed as it is any or complete
The key of portion's claim, required either necessary feature or element.By the application and those issued claims
All equivalents obtain claim uniquely limit the present invention.
The abstract of the disclosure is provided to allow reader quickly to determine property disclosed in technology.It is for the ease of reason to submit abstract
Solution, abstract will not be used to interpret or limit the scope of the claims or meaning.In addition, in foregoing detailed description, it can be seen that
In order to simplify disclosed purpose, various features are combined in various embodiments.
Claims (15)
1. a kind of method of communication between the transmitter (200) and receiver (200) of communication system (100), wherein system
Timing includes frame, and each frame includes time slot, the method includes：During the time slot of quasi- circuit-mode channel on a data channel
Transmit at least one of voice or data, wherein the quasi- circuit-mode channel is the physical channel in bearer data transmission
The logic channel of upper foundation, with lower-layer protocols header to the time slot prefixing of the quasi- circuit-mode channel, the lower-layer protocols report
Head allows the distribution of voice-and-data in the time slot, and ensures that the time slot makes with other time slots on the data channel
Compatibility.
2. according to the method described in claim 1, wherein, the time slot includes multiple callings.
3. according to the method described in claim 2, further including：
Using same key or different key pairs, each calling is encrypted air interface；And
If it is present using the call identifier that each calls of mark as key modifier so that encryption key stream for
It is different for each calling.
4. according to the method described in claim 1, wherein, the time slot includes the calling and data for receiver (200), should
Receiver (200) is not all involved in any calling in the time slot, and wherein, the letter in the lower-layer protocols header
Indicator is enabled to indicate that the time slot includes data.
5. according to the method described in claim 1, wherein, the quasi- circuit-mode channel has periodically, wherein in consecutive frame
Identical time slot not by quasi- circuit-mode channel occupancy.
6. according to the method described in claim 1, wherein, the quasi- circuit-mode channel has periodically, wherein more in frame
A non-adjacent time slot is by the quasi- circuit-mode channel occupancy.
7. according to the method described in claim 1, wherein, the time slot comprises more than in the time slot for only transmitting voice
Bandwidth additional bandwidth, and provide in the additional bandwidth End to End Encryption synchronization.
8. according to the method described in claim 1, wherein, the time slot comprises more than in the time slot for only transmitting voice
Bandwidth additional bandwidth, and signaling is provided in the additional bandwidth, the signaling and other callings on physical channel
Correlation, and it is addressed to the communication equipment (200) for being not engaged in any calling in the time slot.
9. according to the method described in claim 1, further including：When establishing the quasi- circuit-mode channel, to when participating in described
The receiver (200) of calling in gap provides voice and is packaged instruction, and the voice is packaged instruction instruction and is bundled to exhaling in time slot
The number of the speech frame cried.
10. according to the method described in claim 1, wherein, the lower-layer protocols header is in downlink time slots, and is wrapped
Status indicator containing the state for indicating uplink time slot associated with the downlink time slots.
11. according to the method described in claim 10, further including：When the status indicator indicates that the uplink time slot is empty
Idle, the receiver (200) while the calling on the time slot for receiving the downlink, send random access information or
At least one of data.
12. according to the method described in claim 1, further including：It is transmitted from the transmitter (200) to the receiver (200)
Original allocation, the original allocation include frame, time slot and the quasi- circuit-mode for the initiation for being used for the calling when setting up a call
The periodicity of channel.
13. according to the method described in claim 1, further including：
When communication equipment (200) due in the quasi- circuit-mode channel only one calling and with the quasi- circuit-mode channel
When associated, after the end of calling, the communication equipment (200) terminates immediately makes the quasi- circuit-mode channel
With；And
It is directed in the predetermined period of the communication equipment (200) after the call ends and is previously allocated to the quasi- circuit-mode
The time slot of channel reuses relevant signaling to monitor the object for being previously not allocated to the quasi- circuit-mode channel
The content for managing the time slot of channel, the time slot for being previously allocated to the quasi- circuit-mode channel is reassigned to：
The initiation of the recovery or different callings of the quasi- circuit-mode channel and the calling on the quasi- circuit-mode channel,
Data circuit mode channel, or
Different quasi- circuit-mode channels.
14. according to the method described in claim 1, further including：If the communication equipment of quasi- circuit-mode call can not be participated in
(200) the ongoing calling of the quasi- circuit-mode channel is added, then executes one of following operation：Retaining the standard
On circuit-mode channel while ongoing calling, established on circuit-mode channel separately for the communication equipment (200)
One calling；And before the calling is added in the communication equipment (200), by the quasi- circuit-mode channel into
Capable calling assigns to circuit-mode channel again from the quasi- circuit-mode channel.
15. the receiver (200) in a kind of communication system (100), wherein timing includes frame, and each frame includes time slot, institute
It includes receiver circuit (208) to state receiver (200), the quasi- circuit-mode channel of the receiver circuit on a data channel
At least one of voice or data are received during time slot, wherein the quasi- circuit-mode channel is in bearer data transmission
The logic channel established on physical channel, via the processor of the receiver (200) come with lower-layer protocols header to it is described when
Gap prefixing, the lower-layer protocols header allow the distribution of voice-and-data in the time slot, and ensure the time slot with
The compatibility of other time slots on the data channel used.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1018935.5A GB2485355B (en) | 2010-11-09 | 2010-11-09 | Compatible channel for efficient coexistence of voice and dat traffic |
| GB1018935.5 | 2010-11-09 | ||
| PCT/US2011/057443 WO2012064495A1 (en) | 2010-11-09 | 2011-10-24 | Compatible channel for efficient coexistence of voice and data traffic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104205987A CN104205987A (en) | 2014-12-10 |
| CN104205987B true CN104205987B (en) | 2018-09-25 |
Family
ID=43414609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180054146.9A Active CN104205987B (en) | 2010-11-09 | 2011-10-24 | The compatible channel effectively coexisted for voice and data business |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2638765A1 (en) |
| CN (1) | CN104205987B (en) |
| GB (1) | GB2485355B (en) |
| WO (1) | WO2012064495A1 (en) |
Families Citing this family (165)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9113347B2 (en) | 2012-12-05 | 2015-08-18 | At&T Intellectual Property I, Lp | Backhaul link for distributed antenna system |
| US10009065B2 (en) | 2012-12-05 | 2018-06-26 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
| US9999038B2 (en) | 2013-05-31 | 2018-06-12 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
| US9525524B2 (en) | 2013-05-31 | 2016-12-20 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
| US8897697B1 (en) | 2013-11-06 | 2014-11-25 | At&T Intellectual Property I, Lp | Millimeter-wave surface-wave communications |
| US9209902B2 (en) | 2013-12-10 | 2015-12-08 | At&T Intellectual Property I, L.P. | Quasi-optical coupler |
| US9973545B2 (en) | 2014-08-20 | 2018-05-15 | At&T Intellectual Property I, L.P. | Method and device for managing circuit switched data calls |
| US9692101B2 (en) | 2014-08-26 | 2017-06-27 | At&T Intellectual Property I, L.P. | Guided wave couplers for coupling electromagnetic waves between a waveguide surface and a surface of a wire |
| US9420450B2 (en) | 2014-08-27 | 2016-08-16 | Motorola Solutions, Inc. | Methods and systems for talkgroup-state-dependent routing of group data |
| US9768833B2 (en) | 2014-09-15 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves |
| US10063280B2 (en) | 2014-09-17 | 2018-08-28 | At&T Intellectual Property I, L.P. | Monitoring and mitigating conditions in a communication network |
| US9628854B2 (en) | 2014-09-29 | 2017-04-18 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing content in a communication network |
| US9615269B2 (en) | 2014-10-02 | 2017-04-04 | At&T Intellectual Property I, L.P. | Method and apparatus that provides fault tolerance in a communication network |
| US9685992B2 (en) | 2014-10-03 | 2017-06-20 | At&T Intellectual Property I, L.P. | Circuit panel network and methods thereof |
| US9503189B2 (en) | 2014-10-10 | 2016-11-22 | At&T Intellectual Property I, L.P. | Method and apparatus for arranging communication sessions in a communication system |
| US9973299B2 (en) | 2014-10-14 | 2018-05-15 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a mode of communication in a communication network |
| US9762289B2 (en) | 2014-10-14 | 2017-09-12 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting or receiving signals in a transportation system |
| US9520945B2 (en) | 2014-10-21 | 2016-12-13 | At&T Intellectual Property I, L.P. | Apparatus for providing communication services and methods thereof |
| US9780834B2 (en) | 2014-10-21 | 2017-10-03 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting electromagnetic waves |
| US9312919B1 (en) | 2014-10-21 | 2016-04-12 | At&T Intellectual Property I, Lp | Transmission device with impairment compensation and methods for use therewith |
| US9769020B2 (en) | 2014-10-21 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for responding to events affecting communications in a communication network |
| US9577306B2 (en) | 2014-10-21 | 2017-02-21 | At&T Intellectual Property I, L.P. | Guided-wave transmission device and methods for use therewith |
| US9653770B2 (en) | 2014-10-21 | 2017-05-16 | At&T Intellectual Property I, L.P. | Guided wave coupler, coupling module and methods for use therewith |
| US9627768B2 (en) | 2014-10-21 | 2017-04-18 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
| US9564947B2 (en) | 2014-10-21 | 2017-02-07 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with diversity and methods for use therewith |
| US9800327B2 (en) | 2014-11-20 | 2017-10-24 | At&T Intellectual Property I, L.P. | Apparatus for controlling operations of a communication device and methods thereof |
| US9742462B2 (en) | 2014-12-04 | 2017-08-22 | At&T Intellectual Property I, L.P. | Transmission medium and communication interfaces and methods for use therewith |
| US9654173B2 (en) | 2014-11-20 | 2017-05-16 | At&T Intellectual Property I, L.P. | Apparatus for powering a communication device and methods thereof |
| US10009067B2 (en) | 2014-12-04 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method and apparatus for configuring a communication interface |
| US10340573B2 (en) | 2016-10-26 | 2019-07-02 | At&T Intellectual Property I, L.P. | Launcher with cylindrical coupling device and methods for use therewith |
| US9954287B2 (en) | 2014-11-20 | 2018-04-24 | At&T Intellectual Property I, L.P. | Apparatus for converting wireless signals and electromagnetic waves and methods thereof |
| US9680670B2 (en) | 2014-11-20 | 2017-06-13 | At&T Intellectual Property I, L.P. | Transmission device with channel equalization and control and methods for use therewith |
| US9461706B1 (en) | 2015-07-31 | 2016-10-04 | At&T Intellectual Property I, Lp | Method and apparatus for exchanging communication signals |
| US9997819B2 (en) | 2015-06-09 | 2018-06-12 | At&T Intellectual Property I, L.P. | Transmission medium and method for facilitating propagation of electromagnetic waves via a core |
| US10243784B2 (en) | 2014-11-20 | 2019-03-26 | At&T Intellectual Property I, L.P. | System for generating topology information and methods thereof |
| US9544006B2 (en) | 2014-11-20 | 2017-01-10 | At&T Intellectual Property I, L.P. | Transmission device with mode division multiplexing and methods for use therewith |
| US10144036B2 (en) | 2015-01-30 | 2018-12-04 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium |
| US9876570B2 (en) | 2015-02-20 | 2018-01-23 | At&T Intellectual Property I, Lp | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
| US9749013B2 (en) | 2015-03-17 | 2017-08-29 | At&T Intellectual Property I, L.P. | Method and apparatus for reducing attenuation of electromagnetic waves guided by a transmission medium |
| US10224981B2 (en) | 2015-04-24 | 2019-03-05 | At&T Intellectual Property I, Lp | Passive electrical coupling device and methods for use therewith |
| US9705561B2 (en) | 2015-04-24 | 2017-07-11 | At&T Intellectual Property I, L.P. | Directional coupling device and methods for use therewith |
| US9948354B2 (en) | 2015-04-28 | 2018-04-17 | At&T Intellectual Property I, L.P. | Magnetic coupling device with reflective plate and methods for use therewith |
| US9793954B2 (en) | 2015-04-28 | 2017-10-17 | At&T Intellectual Property I, L.P. | Magnetic coupling device and methods for use therewith |
| US9871282B2 (en) | 2015-05-14 | 2018-01-16 | At&T Intellectual Property I, L.P. | At least one transmission medium having a dielectric surface that is covered at least in part by a second dielectric |
| US9748626B2 (en) | 2015-05-14 | 2017-08-29 | At&T Intellectual Property I, L.P. | Plurality of cables having different cross-sectional shapes which are bundled together to form a transmission medium |
| US9490869B1 (en) | 2015-05-14 | 2016-11-08 | At&T Intellectual Property I, L.P. | Transmission medium having multiple cores and methods for use therewith |
| US10679767B2 (en) | 2015-05-15 | 2020-06-09 | At&T Intellectual Property I, L.P. | Transmission medium having a conductive material and methods for use therewith |
| US10650940B2 (en) | 2015-05-15 | 2020-05-12 | At&T Intellectual Property I, L.P. | Transmission medium having a conductive material and methods for use therewith |
| US9917341B2 (en) | 2015-05-27 | 2018-03-13 | At&T Intellectual Property I, L.P. | Apparatus and method for launching electromagnetic waves and for modifying radial dimensions of the propagating electromagnetic waves |
| US10103801B2 (en) | 2015-06-03 | 2018-10-16 | At&T Intellectual Property I, L.P. | Host node device and methods for use therewith |
| US10154493B2 (en) | 2015-06-03 | 2018-12-11 | At&T Intellectual Property I, L.P. | Network termination and methods for use therewith |
| US9912381B2 (en) | 2015-06-03 | 2018-03-06 | At&T Intellectual Property I, Lp | Network termination and methods for use therewith |
| US10812174B2 (en) | 2015-06-03 | 2020-10-20 | At&T Intellectual Property I, L.P. | Client node device and methods for use therewith |
| US9866309B2 (en) | 2015-06-03 | 2018-01-09 | At&T Intellectual Property I, Lp | Host node device and methods for use therewith |
| US10348391B2 (en) | 2015-06-03 | 2019-07-09 | At&T Intellectual Property I, L.P. | Client node device with frequency conversion and methods for use therewith |
| US9913139B2 (en) | 2015-06-09 | 2018-03-06 | At&T Intellectual Property I, L.P. | Signal fingerprinting for authentication of communicating devices |
| US9608692B2 (en) | 2015-06-11 | 2017-03-28 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
| US10142086B2 (en) | 2015-06-11 | 2018-11-27 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
| US9820146B2 (en) | 2015-06-12 | 2017-11-14 | At&T Intellectual Property I, L.P. | Method and apparatus for authentication and identity management of communicating devices |
| US9667317B2 (en) | 2015-06-15 | 2017-05-30 | At&T Intellectual Property I, L.P. | Method and apparatus for providing security using network traffic adjustments |
| US9509415B1 (en) | 2015-06-25 | 2016-11-29 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a fundamental wave mode on a transmission medium |
| US9640850B2 (en) | 2015-06-25 | 2017-05-02 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium |
| US9865911B2 (en) | 2015-06-25 | 2018-01-09 | At&T Intellectual Property I, L.P. | Waveguide system for slot radiating first electromagnetic waves that are combined into a non-fundamental wave mode second electromagnetic wave on a transmission medium |
| US10033107B2 (en) | 2015-07-14 | 2018-07-24 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
| US9628116B2 (en) | 2015-07-14 | 2017-04-18 | At&T Intellectual Property I, L.P. | Apparatus and methods for transmitting wireless signals |
| US10341142B2 (en) | 2015-07-14 | 2019-07-02 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an uninsulated conductor |
| US9836957B2 (en) | 2015-07-14 | 2017-12-05 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating with premises equipment |
| US10033108B2 (en) | 2015-07-14 | 2018-07-24 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave having a wave mode that mitigates interference |
| US9853342B2 (en) | 2015-07-14 | 2017-12-26 | At&T Intellectual Property I, L.P. | Dielectric transmission medium connector and methods for use therewith |
| US9882257B2 (en) | 2015-07-14 | 2018-01-30 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
| US10170840B2 (en) | 2015-07-14 | 2019-01-01 | At&T Intellectual Property I, L.P. | Apparatus and methods for sending or receiving electromagnetic signals |
| US10320586B2 (en) | 2015-07-14 | 2019-06-11 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an insulated transmission medium |
| US10205655B2 (en) | 2015-07-14 | 2019-02-12 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array and multiple communication paths |
| US10148016B2 (en) | 2015-07-14 | 2018-12-04 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array |
| US9722318B2 (en) | 2015-07-14 | 2017-08-01 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
| US9847566B2 (en) | 2015-07-14 | 2017-12-19 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a field of a signal to mitigate interference |
| US10044409B2 (en) | 2015-07-14 | 2018-08-07 | At&T Intellectual Property I, L.P. | Transmission medium and methods for use therewith |
| US9608740B2 (en) | 2015-07-15 | 2017-03-28 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
| US10090606B2 (en) | 2015-07-15 | 2018-10-02 | At&T Intellectual Property I, L.P. | Antenna system with dielectric array and methods for use therewith |
| US9793951B2 (en) | 2015-07-15 | 2017-10-17 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
| US9948333B2 (en) | 2015-07-23 | 2018-04-17 | At&T Intellectual Property I, L.P. | Method and apparatus for wireless communications to mitigate interference |
| US9912027B2 (en) | 2015-07-23 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for exchanging communication signals |
| US9749053B2 (en) | 2015-07-23 | 2017-08-29 | At&T Intellectual Property I, L.P. | Node device, repeater and methods for use therewith |
| US10784670B2 (en) | 2015-07-23 | 2020-09-22 | At&T Intellectual Property I, L.P. | Antenna support for aligning an antenna |
| US9871283B2 (en) | 2015-07-23 | 2018-01-16 | At&T Intellectual Property I, Lp | Transmission medium having a dielectric core comprised of plural members connected by a ball and socket configuration |
| US9967173B2 (en) | 2015-07-31 | 2018-05-08 | At&T Intellectual Property I, L.P. | Method and apparatus for authentication and identity management of communicating devices |
| US9735833B2 (en) | 2015-07-31 | 2017-08-15 | At&T Intellectual Property I, L.P. | Method and apparatus for communications management in a neighborhood network |
| US10020587B2 (en) | 2015-07-31 | 2018-07-10 | At&T Intellectual Property I, L.P. | Radial antenna and methods for use therewith |
| US9904535B2 (en) | 2015-09-14 | 2018-02-27 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing software |
| US10009901B2 (en) | 2015-09-16 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method, apparatus, and computer-readable storage medium for managing utilization of wireless resources between base stations |
| US10051629B2 (en) | 2015-09-16 | 2018-08-14 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an in-band reference signal |
| US10136434B2 (en) | 2015-09-16 | 2018-11-20 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an ultra-wideband control channel |
| US10079661B2 (en) | 2015-09-16 | 2018-09-18 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having a clock reference |
| US10009063B2 (en) | 2015-09-16 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an out-of-band reference signal |
| US9705571B2 (en) | 2015-09-16 | 2017-07-11 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system |
| US9769128B2 (en) | 2015-09-28 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for encryption of communications over a network |
| US9729197B2 (en) | 2015-10-01 | 2017-08-08 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating network management traffic over a network |
| US9876264B2 (en) | 2015-10-02 | 2018-01-23 | At&T Intellectual Property I, Lp | Communication system, guided wave switch and methods for use therewith |
| US10074890B2 (en) | 2015-10-02 | 2018-09-11 | At&T Intellectual Property I, L.P. | Communication device and antenna with integrated light assembly |
| US9882277B2 (en) | 2015-10-02 | 2018-01-30 | At&T Intellectual Property I, Lp | Communication device and antenna assembly with actuated gimbal mount |
| US10355367B2 (en) | 2015-10-16 | 2019-07-16 | At&T Intellectual Property I, L.P. | Antenna structure for exchanging wireless signals |
| US10665942B2 (en) | 2015-10-16 | 2020-05-26 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting wireless communications |
| US10051483B2 (en) | 2015-10-16 | 2018-08-14 | At&T Intellectual Property I, L.P. | Method and apparatus for directing wireless signals |
| US9912419B1 (en) | 2016-08-24 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for managing a fault in a distributed antenna system |
| GB201614560D0 (en) * | 2016-08-26 | 2016-10-12 | Sepura Plc | Mobile communication system |
| US9860075B1 (en) | 2016-08-26 | 2018-01-02 | At&T Intellectual Property I, L.P. | Method and communication node for broadband distribution |
| US10291311B2 (en) | 2016-09-09 | 2019-05-14 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating a fault in a distributed antenna system |
| US11032819B2 (en) | 2016-09-15 | 2021-06-08 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having a control channel reference signal |
| US10135147B2 (en) | 2016-10-18 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via an antenna |
| US10340600B2 (en) | 2016-10-18 | 2019-07-02 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via plural waveguide systems |
| US10135146B2 (en) | 2016-10-18 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via circuits |
| US9991580B2 (en) | 2016-10-21 | 2018-06-05 | At&T Intellectual Property I, L.P. | Launcher and coupling system for guided wave mode cancellation |
| US9876605B1 (en) | 2016-10-21 | 2018-01-23 | At&T Intellectual Property I, L.P. | Launcher and coupling system to support desired guided wave mode |
| US10811767B2 (en) | 2016-10-21 | 2020-10-20 | At&T Intellectual Property I, L.P. | System and dielectric antenna with convex dielectric radome |
| US10374316B2 (en) | 2016-10-21 | 2019-08-06 | At&T Intellectual Property I, L.P. | System and dielectric antenna with non-uniform dielectric |
| US10312567B2 (en) | 2016-10-26 | 2019-06-04 | At&T Intellectual Property I, L.P. | Launcher with planar strip antenna and methods for use therewith |
| US10291334B2 (en) | 2016-11-03 | 2019-05-14 | At&T Intellectual Property I, L.P. | System for detecting a fault in a communication system |
| US10225025B2 (en) | 2016-11-03 | 2019-03-05 | At&T Intellectual Property I, L.P. | Method and apparatus for detecting a fault in a communication system |
| US10224634B2 (en) | 2016-11-03 | 2019-03-05 | At&T Intellectual Property I, L.P. | Methods and apparatus for adjusting an operational characteristic of an antenna |
| US10498044B2 (en) | 2016-11-03 | 2019-12-03 | At&T Intellectual Property I, L.P. | Apparatus for configuring a surface of an antenna |
| US10340601B2 (en) | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Multi-antenna system and methods for use therewith |
| US10340603B2 (en) | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Antenna system having shielded structural configurations for assembly |
| US10535928B2 (en) | 2016-11-23 | 2020-01-14 | At&T Intellectual Property I, L.P. | Antenna system and methods for use therewith |
| US10178445B2 (en) | 2016-11-23 | 2019-01-08 | At&T Intellectual Property I, L.P. | Methods, devices, and systems for load balancing between a plurality of waveguides |
| US10090594B2 (en) | 2016-11-23 | 2018-10-02 | At&T Intellectual Property I, L.P. | Antenna system having structural configurations for assembly |
| US10305190B2 (en) | 2016-12-01 | 2019-05-28 | At&T Intellectual Property I, L.P. | Reflecting dielectric antenna system and methods for use therewith |
| US10361489B2 (en) | 2016-12-01 | 2019-07-23 | At&T Intellectual Property I, L.P. | Dielectric dish antenna system and methods for use therewith |
| US10637149B2 (en) | 2016-12-06 | 2020-04-28 | At&T Intellectual Property I, L.P. | Injection molded dielectric antenna and methods for use therewith |
| US10819035B2 (en) | 2016-12-06 | 2020-10-27 | At&T Intellectual Property I, L.P. | Launcher with helical antenna and methods for use therewith |
| US10382976B2 (en) | 2016-12-06 | 2019-08-13 | At&T Intellectual Property I, L.P. | Method and apparatus for managing wireless communications based on communication paths and network device positions |
| US10326494B2 (en) | 2016-12-06 | 2019-06-18 | At&T Intellectual Property I, L.P. | Apparatus for measurement de-embedding and methods for use therewith |
| US10439675B2 (en) | 2016-12-06 | 2019-10-08 | At&T Intellectual Property I, L.P. | Method and apparatus for repeating guided wave communication signals |
| US10020844B2 (en) | 2016-12-06 | 2018-07-10 | T&T Intellectual Property I, L.P. | Method and apparatus for broadcast communication via guided waves |
| US10755542B2 (en) | 2016-12-06 | 2020-08-25 | At&T Intellectual Property I, L.P. | Method and apparatus for surveillance via guided wave communication |
| US10135145B2 (en) | 2016-12-06 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave along a transmission medium |
| US10694379B2 (en) | 2016-12-06 | 2020-06-23 | At&T Intellectual Property I, L.P. | Waveguide system with device-based authentication and methods for use therewith |
| US10727599B2 (en) | 2016-12-06 | 2020-07-28 | At&T Intellectual Property I, L.P. | Launcher with slot antenna and methods for use therewith |
| US9927517B1 (en) | 2016-12-06 | 2018-03-27 | At&T Intellectual Property I, L.P. | Apparatus and methods for sensing rainfall |
| US10027397B2 (en) | 2016-12-07 | 2018-07-17 | At&T Intellectual Property I, L.P. | Distributed antenna system and methods for use therewith |
| US10243270B2 (en) | 2016-12-07 | 2019-03-26 | At&T Intellectual Property I, L.P. | Beam adaptive multi-feed dielectric antenna system and methods for use therewith |
| US10446936B2 (en) | 2016-12-07 | 2019-10-15 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system and methods for use therewith |
| US10139820B2 (en) | 2016-12-07 | 2018-11-27 | At&T Intellectual Property I, L.P. | Method and apparatus for deploying equipment of a communication system |
| US10168695B2 (en) | 2016-12-07 | 2019-01-01 | At&T Intellectual Property I, L.P. | Method and apparatus for controlling an unmanned aircraft |
| US10389029B2 (en) | 2016-12-07 | 2019-08-20 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system with core selection and methods for use therewith |
| US10547348B2 (en) | 2016-12-07 | 2020-01-28 | At&T Intellectual Property I, L.P. | Method and apparatus for switching transmission mediums in a communication system |
| US9893795B1 (en) | 2016-12-07 | 2018-02-13 | At&T Intellectual Property I, Lp | Method and repeater for broadband distribution |
| US10359749B2 (en) | 2016-12-07 | 2019-07-23 | At&T Intellectual Property I, L.P. | Method and apparatus for utilities management via guided wave communication |
| US10938108B2 (en) | 2016-12-08 | 2021-03-02 | At&T Intellectual Property I, L.P. | Frequency selective multi-feed dielectric antenna system and methods for use therewith |
| US10103422B2 (en) | 2016-12-08 | 2018-10-16 | At&T Intellectual Property I, L.P. | Method and apparatus for mounting network devices |
| US10601494B2 (en) | 2016-12-08 | 2020-03-24 | At&T Intellectual Property I, L.P. | Dual-band communication device and method for use therewith |
| US10411356B2 (en) | 2016-12-08 | 2019-09-10 | At&T Intellectual Property I, L.P. | Apparatus and methods for selectively targeting communication devices with an antenna array |
| US10530505B2 (en) | 2016-12-08 | 2020-01-07 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching electromagnetic waves along a transmission medium |
| US10777873B2 (en) | 2016-12-08 | 2020-09-15 | At&T Intellectual Property I, L.P. | Method and apparatus for mounting network devices |
| US10916969B2 (en) | 2016-12-08 | 2021-02-09 | At&T Intellectual Property I, L.P. | Method and apparatus for providing power using an inductive coupling |
| US9998870B1 (en) | 2016-12-08 | 2018-06-12 | At&T Intellectual Property I, L.P. | Method and apparatus for proximity sensing |
| US10389037B2 (en) | 2016-12-08 | 2019-08-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for selecting sections of an antenna array and use therewith |
| US9911020B1 (en) | 2016-12-08 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for tracking via a radio frequency identification device |
| US10326689B2 (en) | 2016-12-08 | 2019-06-18 | At&T Intellectual Property I, L.P. | Method and system for providing alternative communication paths |
| US10340983B2 (en) | 2016-12-09 | 2019-07-02 | At&T Intellectual Property I, L.P. | Method and apparatus for surveying remote sites via guided wave communications |
| US9838896B1 (en) | 2016-12-09 | 2017-12-05 | At&T Intellectual Property I, L.P. | Method and apparatus for assessing network coverage |
| US10264586B2 (en) | 2016-12-09 | 2019-04-16 | At&T Mobility Ii Llc | Cloud-based packet controller and methods for use therewith |
| CN106488047B (en) * | 2016-12-20 | 2020-08-11 | 惠州Tcl移动通信有限公司 | Call data transmission control method and system based on mobile terminal |
| US9973940B1 (en) | 2017-02-27 | 2018-05-15 | At&T Intellectual Property I, L.P. | Apparatus and methods for dynamic impedance matching of a guided wave launcher |
| US10298293B2 (en) | 2017-03-13 | 2019-05-21 | At&T Intellectual Property I, L.P. | Apparatus of communication utilizing wireless network devices |
| CN113038534B (en) * | 2021-02-26 | 2023-04-07 | 海能达通信股份有限公司 | Call interruption method in narrowband ad hoc network and related device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272994A (en) * | 1998-06-23 | 2000-11-08 | 皇家菲利浦电子有限公司 | Telecommunication system with channel sharing |
| CN1464756A (en) * | 2002-06-28 | 2003-12-31 | 上海贝尔有限公司 | Dynamic allocation method for communication channel in time-division duplex communication system |
| CN1481626A (en) * | 2000-10-24 | 2004-03-10 | ���˹���Ѷ��� | Shared channel structure, ARQ systems and methods |
| GB2456913A (en) * | 2008-01-29 | 2009-08-05 | Sepura Plc | TETRA Mobile Communications Systems |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000115834A (en) * | 1998-10-05 | 2000-04-21 | Sony Corp | Communication method, base station device and communication terminal |
| US8699427B2 (en) * | 2006-09-22 | 2014-04-15 | Kyocera Corporation | OFDMA communication system and communication method |
-
2010
- 2010-11-09 GB GB1018935.5A patent/GB2485355B/en active Active
-
2011
- 2011-10-24 EP EP11779301.8A patent/EP2638765A1/en not_active Withdrawn
- 2011-10-24 CN CN201180054146.9A patent/CN104205987B/en active Active
- 2011-10-24 WO PCT/US2011/057443 patent/WO2012064495A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272994A (en) * | 1998-06-23 | 2000-11-08 | 皇家菲利浦电子有限公司 | Telecommunication system with channel sharing |
| CN1481626A (en) * | 2000-10-24 | 2004-03-10 | ���˹���Ѷ��� | Shared channel structure, ARQ systems and methods |
| CN1464756A (en) * | 2002-06-28 | 2003-12-31 | 上海贝尔有限公司 | Dynamic allocation method for communication channel in time-division duplex communication system |
| GB2456913A (en) * | 2008-01-29 | 2009-08-05 | Sepura Plc | TETRA Mobile Communications Systems |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2485355A (en) | 2012-05-16 |
| EP2638765A1 (en) | 2013-09-18 |
| GB2485355B (en) | 2013-06-05 |
| CN104205987A (en) | 2014-12-10 |
| WO2012064495A1 (en) | 2012-05-18 |
| GB201018935D0 (en) | 2010-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104205987B (en) | The compatible channel effectively coexisted for voice and data business | |
| EP1903813B1 (en) | Method, server and base station for synchronization of multicast and broadcast frame portions in wimax systems | |
| CN104160726B (en) | System and method for allocating network resources | |
| CN105827372B (en) | Method and communication device for responding to co-location coexistence request of mobile electronic equipment | |
| US7450558B2 (en) | Method for controlling operation of a child or neighbor network | |
| EP2335440B1 (en) | Mac protocol for multi-channel wireless networks | |
| KR101527737B1 (en) | Method for sending and receiving multimedia operation data, base station device and user device | |
| JP5279846B2 (en) | Method and base station for synchronizing signaling messages | |
| CN104025662B (en) | For the system and method for quick initial network link establishing | |
| TW200818751A (en) | Wireless communication systems | |
| TW200818753A (en) | Wireless communication systems | |
| WO2013135094A1 (en) | Trunking service transmitting method and device | |
| CN102301751A (en) | Communication Method Of Broadcast And/or Multicast In Wireless Network, And The Equipment Thereof | |
| WO2007091546A1 (en) | Uplink and downlink channel configuration method in radio communication system | |
| KR20120070945A (en) | Base station apparatus and data processing method in wireless communication system | |
| WO2010145177A1 (en) | Method and system for configuration and transmission of multimedia broadcast multicast service notification information | |
| CN102204368B (en) | Mobile communication system, control station, base station, communication method | |
| CN101981874A (en) | Method for synchronizing a gateway and base stations and the corresponding gateway and base station | |
| WO2011009367A1 (en) | Method for sending, transmitting and receiving mcch information and transmission system thereof | |
| CN106533888A (en) | Gateway equipment for implementing digital cluster interconnection and interworking | |
| KR20130051826A (en) | Apparatus and method for synchronization control for mbs services | |
| JP6905580B2 (en) | Wireless communication device | |
| EP2426958B1 (en) | Method, bm-sc and base station for multiplexing mbms services in mbsfn | |
| CN101562602B (en) | Method for indicating data format type in MBMS service data synchronization system | |
| CN101299822B (en) | System, method, equipment and apparatus for synchronous transmission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |