CN2894166Y - Radio transmitting/receiving unit via multi-communication channel and base station communication - Google Patents

Abstract

A system and method in a wireless communication network that efficiently determine when a message is intended for a particular wireless transmit/receive unit (WTRU). In accordance with the present invention, each WTRU is configured to receive communications on multiple communication channels. The WTRU receives and processes incoming signals on the multiple communication channels at the physical layer for an indication of which, if any, of the multiple communication channels is intended for the WTRU. If the indication is consistent with an expected indication for that mobile unit, the mobile unit accesses the particular communication channel and processes the information being sent therein.

Description

Wireless transmitter/receiver unit by many communication channels and base station communication

Technical field

The utility model relates to wireless communication field.Especially, the utility model relates to the system and method for the information on the specific control channel that identifies effectively from a plurality of control channels.

Background technology

A purpose of radio mobile unit design is to make maximise battery life.Fully lasting battery life has greatly increased convenience for the user.The primary factor in limit battery life-span is the required processing operation of mobile unit.If minimization needs, then extending battery life; Otherwise, need if increase to handle, then reduce battery life.This is a key element need weighing when design of wireless systems: move the system of better still shorter battery life and do not move the still system of battery life prolongation.

In wireless system, consuming one of a large amount of processing of handling resource is testing process.Therefore, need a kind of high efficiency detection of design to handle, permission is used on Preliminary detection stage Min. ground and is handled resource, especially in the system of shared channel is arranged.Monitor that continuously or off and on one or many channels determine whether to go to the stage of the data of mobile unit because this Preliminary detection stage is a receiver, so this takies most of the detection and handles.If the data of going to mobile unit are arranged, wherein a channel will have the indication of some types or message to show that data are available.Then, the data of going to mobile unit can be sent out on that channel, and perhaps Indication message can comprise that some mobile units turn to the address of some other channels that receive data.

A solution supporting data communication is to distribute a dedicated channel to each radio mobile unit.Yet because such channel keeps idle condition usually in the very long duration, this causes the use of very bandwidth poor efficiency.

For each mobile unit uses the alternative of dedicated channel to be to use shared data channel and with packing data.In this way, between a plurality of mobile units, share many channels.Those mobile units that are useful on the data that send or receive are dynamically distributed one of them shared data channel.This causes more effectively using frequency spectrum.

The system that shared channel arranged usually between a large amount of mobile units (for example, up to 100 mobile units) share a few channels (such as 4-6 channel).Therefore, although mobile unit monitors one or more of channels continuously or off and in the Preliminary detection stage, in fact, indication or message seldom are used for specific mobile unit, at this time phase, a large amount of required processing are wasted in and are not to go on the data of specific mobile unit.When mobile unit monitors many channels, have only a channel to have the data of going to specific mobile unit.Yet, the most of the time, do not have channel to have to go to the data of specific mobile unit.Expect to have a kind of mobile unit, only finish detailed data search on the channel of concern causing, by doing the quantity that reduces power and handle resource consumption like this.

An object lesson of the communication system of such use shared channel scheme is third generation partner plan (3GPP) communication system.When in the 3GPP system that uses high-speed data packets architecture (HSDPA) to use, mobile unit can prediction data will be sent to mobile unit, but not know it definitely is or on which channel.This process shows in Figure 1A-1C.With reference to Figure 1A, related downlink dedicated physical channels (DPCH) is by (perhaps Node B) sends to each mobile unit from the base station.Mobile unit monitors DPCH and shared control channel (HS-SCCH).When not having data by when the base station sends to mobile unit, mobile unit enters a stand-by state, and thus, it periodically " is waken up ", attempts to monitor DPCH and HS-SCCH.Stand-by state allows mobile unit to save processing and battery resource.

If the data in the base station are ready for sending mobile unit, high-speed downlink shared channel (HS-DSCH) sign is sent in DPCH.Sign has the length of n bit, at 2 ⁿOne of them of kind HS-SCCH is illustrated in Figure 1B.For example, the sign of 2 bits can be at 4 SCCH-HS (that is, 00,01,10 or 11).

In the example shown in Figure 1A, sign is that (1,0) points to the 3rd channel shown in Figure 1B.When mobile unit is linked into by the control channel of landmark identification, specific HS-SCCH will point to the HS-DSCH that is fit to mobile unit, and it has been assigned to mobile unit and has been used to receive data.Shown in the positive print 1C, for example, mobile unit is transferred to by the HS-DSCH (001) of HS-SCCH (1,0) identification.Mobile unit receives the data that are supplied to it by HS-DSCH (001) subsequently.Graphic representation that it should be noted that Figure 1A-1C has illustrated the process of distributing HS-DSCH, and channel use and dispose the actual enforcement that can be different from a little with the HSDPA standard.

Be used to distribute shared channel to transmit the effective ways of data although provide a kind of with reference to the described process of figure 1A-1C, it need use independent Dedicated Control Channel to send sign, and this is undesirable.

Above-mentioned example also can be promoted and other communication systems of the data that are applied to use many channels to provide to send to each receiver in a plurality of receivers.

Typically be comprised in one in the specific control channel beyond a plurality of control channel scopes owing to transport the message of specific mobile unit to, if mobile unit can determine to insert the specific control channel of the message of going to mobile unit fast, this will be favourable.

The utility model content

The purpose of this utility model provides a kind of receiver that identifies information on the specific control channel from a plurality of control channels effectively.

It is a kind of at wireless transmission/accept the receiver in the unit (WTRU) that the utility model provides, and can determine effectively when message is sent to.Receiver is configured to receive message on many communication channels.On at least one of many communication channels, can obtain message from the base station.Receiver receives and handles input signal on many communication channels on the physical layer, if any, be used to indicate many communication channels to be intended to supply with this receiver.If indication meets the indication of mobile unit expection, mobile unit insert the particular communication channel and, handle the message that being sent to the there.

A kind of wireless transmitter/receiver unit by many communication channels and base station communication, a plurality of message of described base station, each message comprise a coding header and a control messages; It is characterized in that this wireless transmission receiving element comprises:

A RF low-converter, described RF low-converter is connected with a header processor, is used to receive and become down the message that has much encode a header and a control messages;

Described header processor, it is used for receiving from the described message of described RF low-converter and the described header that comprises in described message a physical layer process, and determines that whether described header is complementary with a distinguishing mark of wireless transmitter/receiver unit; And

A control messages processor, it is connected with described header processor, and described control messages processor is used for when only when the distinguishing mark of described header and described wireless transmitter/receiver unit is complementary, just control message processing.

In specific configuration, can be used as control channel communication channel is provided, and signal analysis is enough to obtain a pattern that the control information indication is provided for specific mobile unit.

The control messages header that the utility model is not handled each emission determines whether that one of them and its distinguishing mark (ID) in them is complementary, and WTRU can determine that the ID of multiplex which and it mates most.Subsequently, WTRU finish determine the transmission entire process.This is to finish by the transmission of determining and its ID mates most, and always determined processing is handled fully.Rely on unique one that handles The whole control message, this has greatly reduced the possibility that detects the ID failure.Be better than handling fully all control messages, this represents more effective saving processing procedure.

Description of drawings

Figure 1A is one the block diagram that distributes the use of sharing downstream data channel is shown.

Figure 1B is the block diagram that a plurality of control channels are shown.

Fig. 1 C is the block diagram that a plurality of data channels are shown.

Fig. 2 is the network configuration according to the universal mobile telecommunications system (UMTS) of the utility model use.

Fig. 3 is the block diagram according to the transmitter of the utility model manufacturing.

Fig. 4 is the block diagram according to preamble generator of the present utility model.

Fig. 5 is the block diagram according to the receiver of the utility model manufacturing.

Fig. 6 is the block diagram of header processor.

Fig. 7 is to use Reed-wrong replaceable execution mode of reining in the preamble generator of coding;

Fig. 8 is to use Reed-wrong replaceable execution mode of reining in the header processor of coding;

Fig. 9 is the replaceable execution mode according to the header processor of the utility model manufacturing.

Embodiment

The utility model will be described with reference to the accompanying drawings, in following description, and the element that identical numeral is identical.It should be noted that, although current utility model will be described with reference to the 3GPP system, here the principle of being instructed can be applied to any communication system of many communication channels, and wherein receiver must detect the message that is sent to it on one of them of communication channel.

With reference to the accompanying drawings 2, the network configuration of the universal mobile telecommunications system (UMTS) that the utility model uses comprises a core net (CN), individual UMTS grounding wireless access network network (UTRAN) and a wireless transmission/receiving element (WTRU).Two general-purpose interfaces are at Iu interface between UTRAN and the core net and the wave point Uu between UTRAN and WTRU.UTRAN comprises several RNSs (RNS).They can be connected to each other by the Iur interface.Be connected to each other and make core net between different RNS, to operate unfetteredly.RNS further is divided into radio network controller (RNC) and several base station (Node-B).Node-B is connected to RNC by Iub interface.A Node-B can serve one or more sub-district, and typically serves a plurality of WTRU.UTRAN supports fdd mode and tdd mode on wave point.For two kinds of patterns, use identical network configuration and identical agreement.Only physical layer and air interface Uu are appointments respectively.

With reference to figure 3, the transmitter of making according to the utility model 10 is shown.Transmitter 10 comprises a preamble generator 12, control messages generator 14, combiner 16, RF upconverter and reflector 18 and antenna 20.Control messages generator 14 produces the control messages 22 of an x bit.Similarly, preamble generator 12 produces a header 24.Header 24 and control messages 22 are combined at combiner 16, produce to send message 26, comprise the header 24 prior to control messages 22.Send message 26 and pass through RF upconverter and reflector 18 subsequently, and launched by antenna 20 by up-conversion and transmission.

With reference to figure 4, illustrate in greater detail preamble generator 12.Preamble generator 12 can be handled a plurality of parallel channel C1, C2, C3 ... CN.Preamble generator 12 is accepted N parallel control channel CC1, CC2, CC3 ... CCN, each control channel CC1-CCN comprise the WTRU distinguishing mark (WTRUID) of a M bit.Preamble generator 12 in the header of K bit, is finished coding by mapping M bit WTRUID through at least one encoder 13.Erect image is as well known to those skilled in the art, and the encoding scheme of any large list may be used to the utility model.For example, can use the encoding scheme of all Reeds in this way-wrong reining in (Reed-Muller), Reed-Solomon (Reed-Solomon), Hamming (Hamming), BCH Bose-Chadhuri-Hocquengham (Bose-Chaudhura-Hocquenghem, i.e. DCH) and dagger-axe Lay (Golay).Certainly, other the coding that demonstrates the quality that is better than aforementioned sign indicating number can be used.Such quality is easy to realize, and between any two coded words very big distance is arranged.For example, for block code, the Hamming distance between two words (Hamming distance) is the number of the different position of word.Good sign indicating number can have very big value, can minimize Hamming distance.

As the result of cataloged procedure, a plurality of header P1, P2, P3 ... PN produces from least one encoder 13.Described as earlier in respect of figures 3, make up the corresponding control messages 22 of each header P1-PN and send message 26 with emission to create one with one.

With reference to figure 5, illustrate according to receiver 40 of the present utility model.Receiver 40 comprises antenna 42, RF low-converter 44, header processor 46 and control messages processor 48.In case received emission message, carry out down-conversion by RF low-converter 44, and send to header processor 46 at antenna 42.Erect image is described in more detail below, and the WTRUID that header processor 46 is accepted specific WTRU handles a plurality of header P1-PN, determines whether that all headers all meet the WTRUID of specific WTRU.

With reference to figure 6, describe and illustrate header processor 46 in detail.Header processor 46 comprises header decoding unit 50 and comparator 52.Header decoding unit 50 is accepted to comprise the emission message 26 of header 24 and control messages 26, and header 24 is decoded into the distinguishing mark (ID) of M bit.In essence, 50 execution of header decoding unit are by the inverse process of the preamble generator shown in Fig. 4 12.Subsequently, the ID of M bit compares with WTRUID at comparator 52.If do not match, header 24 and control messages 26 will no longer be further processed.If coupling, header 24 is accepted, and control messages 26 is sent to control messages processor 48 to be further processed.Although it should be noted that Fig. 6 only simplifies shows an independent channel, erect image is shown and describe with reference to the preamble generator 12 of figure 4, and in fact header processor 46 can handle many channel C1-CN.

Although the utility model can be applied to the communication system of the many dissimilar cataloged procedures of use of any kind, in Fig. 7 and 8, be illustrated with reference to the particular examples of 3GPP system.

With reference to figure 7, in each encoder 13 of preamble generator 12, realize the coding mapping.In this specific embodiment, be utilize to use Reed-wrong coding of reining in, be encoded into that 10 bit WTRUID of 32 bit form realize.It is well-known technology that Reed-wrong is reined in coding, provides a kind of effective and reliable method to be used to launch control messages up to 10 bits.Subsequently, this pattern is placed in the control messages 22 as header, and emission message 26 is launched subsequently.In this example, WTRU has been assigned with four channels and has been used for monitoring, is sent out on any one that predetermined message can be in them.

With reference to the accompanying drawings 8, the recipient, header processor 46 comprises Reed-wrong header decoding unit 51 of reining in, and it realizes the inverse operation of the encoder shown in Fig. 7 in essence.As at common application with reference to illustrated in the figure 6 and describe, Reed-wrong output of reining in header decoding unit 51 is handled similarly.

The positive copy those skilled in the art are known, use decoding processing that a variety of possible implementations are arranged, and the utility model not by as described herein several give an example limit.Yet, current M bit ID represent 2 for example ^M(for example, in the utility model, the ID of 10 bits causes 2 in the supposition that the ID kind is possible ¹⁰=1024 kinds of supposition).

In first kind of embodiment of the present utility model, decoding processing in header decoding unit 51 connects each 32 bit modes of 1024 kinds of hypothesis of original bit that receives and expectation, and is the hypothesis that each selections of 4 channels has nearest relation.In comparator 52, these 4 hypothesis are linked together with 32 bit modes relevant with WTRUID successively.Subsequently, comparator 52 is accepted the channel of coupling.

With reference to the accompanying drawings 9, the replaceable execution mode of the header processor of making according to the utility model 70 is shown, wherein, detect to be based in the comparator 76 and carry out with specific WTRUID " coupling ".In this case, the signal mode 72 that conforms to specific WTRUID (that is the ID of WTRU oneself itself) is used to compare.When N channel 74 when physical layer is received, finish comparison at comparator 76.Comprise the filter operation or the contrast of coupling more in essence.Be confirmed as with the signal mode 72 maximally related input signal patterns of specific WTRUID " coupling ".Replaceable execution mode provides higher possibility for successfully selecting, and required processing procedure also still less.4 channels for example in, need 4 to recently replacing 4*1024 contrast.Replaceable execution mode provides an indication, points out to be sent to WTRU by 4 message that channel received.

In an optional execution mode, " mating most " can thus, have only above threshold value " mating most " and can consider to be used for matching with WTRUID further according to predetermined threshold value.

Can further improve the utility model by the common signature that uses physical channel.The control messages header of not handling each emission determines whether that one of them and its ID in them is complementary, and WTRU can determine that the ID of multiplex which and it mates most.Subsequently, WTRU finish determine the transmission entire process.This is to finish by the transmission of determining and its ID mates most, and always determined processing is handled fully.Rely on unique one that handles The whole control message, this has greatly reduced the possibility that detects the ID failure.Be better than handling fully all control messages, this represents more effective saving processing procedure.

Claims (3)

1. wireless transmitter/receiver unit by many communication channels and base station communication, a plurality of message of described base station, each message comprise a coding header and a control messages; It is characterized in that this wireless transmission receiving element comprises:

A RF low-converter, described RF low-converter is connected with a header processor, is used to receive and down-conversion has the message of a coding header and a control messages:

Described header processor, it is used for receiving from the described message of described RF low-converter and the described header that comprises in described message a physical layer process, and determines that whether described header is complementary with a distinguishing mark of wireless transmitter/receiver unit; And

A control messages processor, it is connected with described header processor, and described control messages processor is used for when only when the distinguishing mark of described header and described wireless transmitter/receiver unit is complementary, just control message processing.

2. the wireless transmitter/receiver unit by many communication channels and base station communication as claimed in claim 1 is characterized in that: described header processor comprises the header decoding unit, is used in physical layer described header being decoded.

3. the wireless transmitter/receiver unit by many communication channels and base station communication as claimed in claim 2, it is characterized in that: described header processor further comprises comparator, described comparator is connected with described header decoding unit, is used for described decoding header and described distinguishing mark are compared.

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