CN1863112A - Method for access terminal transmitting message to access network in multi-carrier DO system - Google Patents
Method for access terminal transmitting message to access network in multi-carrier DO system Download PDFInfo
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- CN1863112A CN1863112A CN 200510090312 CN200510090312A CN1863112A CN 1863112 A CN1863112 A CN 1863112A CN 200510090312 CN200510090312 CN 200510090312 CN 200510090312 A CN200510090312 A CN 200510090312A CN 1863112 A CN1863112 A CN 1863112A
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Abstract
The invention supplies a method to send message to accessed network from accessing terminal in multi- carrier wave DO system. The key of the invention is that: accessing network selecting reverse basic channel from reverse channel, sending the mark information to connecting terminal, the connecting terminal sending information to accessing network according to reverse basic channel. The invention simplifies information transferring for the random selecting and appointing reverse channel and improves the reliability of information transferring.
Description
Technical field
The present invention relates to the network communications technology field, be specifically related to the method for access terminal transmitting message to access network in a kind of multi-carrier DO system.
Background technology
At present, the 3G mobile communication technology is ripe gradually commercial, 3GPP2 (3G (Third Generation) Moblie collaborative project tissue 2) CDMA2000 1XEV-DO (Evolution, evolution, Data Only only supports Packet data service) competitive wireless access system can further be provided in the coming years.
The 1XEV-DO technology is a kind of technology that is used for the transmitting high speed Packet data service, and the peak-peak speed of every sector carrier frequency support can reach 2.4Mbps, and in version A, peak rate can reach 3.1Mbps.But, want to keep following 10 years or the competitiveness in decades, need to introduce new wireless access technology.
At present, industry is reached preliminary unanimity with regard to the technology of the eating dishes without rice or wine evolution of 3GPP2, the technology of the eating dishes without rice or wine evolution that is about to 3GPP2 is divided into 2 stages and carries out, stage one, employing multi-carrier DO technology, do not change under the situation of physical layer in the assurance of trying one's best,, obtain higher peak value digit rate by the upper layer software (applications) upgrading, guarantee backward compatibility, the deadline of this standard roughly was the end of the year 2005; Stage two, the more advanced new technology of introducing are the long-term evolution plans of 3GPP2.
In the demand of multi-carrier DO system, spelt out, forward link CDMA Channel and reverse link CDMA Channel can independently increase and delete, and, dynamic assignment as required, and the forward link CDMA Channel quantity that is assigned can be different with the reverse link CDMA Channel quantity that is assigned, the ability that is assigned reverse link CDMA Channel is independently, needn't follow the paired principle of CDMA2000 forward link and reverse link.
Consider that based on above demand two kinds of different link assignment mode of main at present existence: pattern one, symmetrical assignment mode, as shown in Figure 1, forward link CDMA Channel quantity is identical with reverse link CDMA Channel quantity, and satisfies paired principle.Pattern two, asymmetric assignment mode, as shown in Figure 2, forward link CDMA Channel quantity is different from reverse link CDMA Channel quantity, and this pattern is applicable to some asymmetric application, as file transfer applications ftp etc.
Based on the control to the multicarrier link CDMA Channel of multi-carrier DO system, at present, the message format of TCA (TrafficChannel Assignment, channel assignment) message is as shown in table 1:
Table 1
| Field | Length(bits) |
| MessageID | 8 |
| MessageSequence | 8 |
| DSCChannelGain | 5 |
| Frameoffset | 4 |
| NumSectors | 3 |
| NumForwardChannels | 4 |
NumSectors occurrences of the followingSectorInformation record：
| RABLength | 2 |
| RABOffset | 3 |
| RAChannelGain | 2 |
| PilotPN | 9 |
| SofterHandoff | 1 |
NumForwardChannels occurrenees of thefollowing ActiveSetParameters record(startingfrom AssignedChannel and ending at MACIndex，inclusive)：{
| AssignedChannel | 0 or 24 |
| LongCodeMaskIndex | 4 |
| FeedbackReverseChannelIndex | 5 |
| DRCCover | 3 |
| DRCLength | 2 |
| DRCChannelGain | 6 |
| ACKChannelGain | 6 |
| ReverseChannelEnabled | 1 |
NumSectors occurrences of the following record：
{
| TrafficMACIndex | 8 |
| MACIndex | 0 or 8 |
}
}
N occurrences of the following field，where N is thenumber of SofterHandoff fields set to‘0’in thismessage
| DSC | 3 |
| ReverseChannelConfiguration | 2 |
| Configuration | variable |
| Reserved | variable |
This channel assignment message can be supported the assignment of many forward links CDMA Channel and many reverse links CDMA Channel, wherein the pairing carrier link in ActiveSet Parameters record territory of first appearance is designated as the basic CDMA Channel of forward direction (Primary Channel).The basic CDMA Channel of forward direction is AN in each sector (access network) to the transmit control channel information CDMA Channel at place of AT (accessing terminal).When having many forward carriers CDMA Channel, AN only transmits control channel information on forward fundamental channel.
Access terminal and determine the reverse CDMA channel of the message such as feeding back ACK, DRC of each Forward CDMA Channel correspondence according to the content of the Feedback Reverse Channel Index in the channel assignment message.Because the backward channel of message such as the feeding back ACK of a plurality of forward direction CDMA correspondences, DRC is specified arbitrarily by access network and quantity can be for one or more, so, when the reverse CDMA channel of message such as feeding back ACK, DRC when being a plurality of, it is multiplexing to carry out long code on a plurality of reverse CDMA channels, makes the complex disposal process of message; Because the reverse CDMA channel of access network appointment is the reverse CDMA channel of optimum not necessarily, make the poor reliability of access terminal transmitting message to access network; And, specify the reverse CDMA channel of message such as feeding back ACK, DRC arbitrarily, also can bring certain complexity to access network.
When reverse CDMA channel when being a plurality of, access terminal and to choose any reverse CDMA channel to important control messages such as access network transmission NAK.The reverse CDMA channel of choosing owing to access terminal is the reverse CDMA channel of optimum not necessarily, make the poor reliability of access terminal transmitting message to access network, thereby the service reliability that network side is provided for accessing terminal is poor; Simultaneously, access terminal and choose the reverse CDMA channel of message such as transmission NAK arbitrarily, also can give to access terminal and bring certain complexity.
Summary of the invention
The objective of the invention is to, the method of access terminal transmitting message to access network in a kind of multi-carrier DO system is provided, access terminal and utilize Reverse Fundamental Channel, to realize improving the purpose of transmission of messages reliability, simplified message transmission process complexity to the access network message transfer.
For achieving the above object, the method for access terminal transmitting message to access network in a kind of multi-carrier DO system provided by the invention comprises:
A, access network are chosen Reverse Fundamental Channel from backward channel;
B, access network are issued to the identification information of its Reverse Fundamental Channel of choosing and access terminal;
C, access terminal according to Reverse Fundamental Channel to the access network message transfer.
Described step a specifically comprises:
Access network is chosen Reverse Fundamental Channel according to the channel characteristics of each backward channel from each backward channel.
Described channel characteristics is: reverse pilot intensity and/or load.
The identification information of described Reverse Fundamental Channel is: the ascending order/descending index value of Reverse Fundamental Channel in backward channel.
The identification information of described Reverse Fundamental Channel takies 5 bits.
Described step b specifically comprises:
Access network is carried on the identification information of Reverse Fundamental Channel to be issued in the channel assignment message and accesses terminal.
Described method also comprised before step a:
In the message header of channel assignment message, increase the Reverse Fundamental Channel field;
And described step b specifically comprises:
Access network is carried on the identification information of Reverse Fundamental Channel in the Reverse Fundamental Channel field of channel assignment message, and channel assignment message is issued to accesses terminal.
Do not comprise in the described channel assignment message: Feedback Reverse Channel Index field.
Described step c specifically comprises:
Access terminal on Reverse Fundamental Channel to the NAK message of access network transmission based on radio link protocol; And/or
Accessing terminal, it is multiplexing to carry out long code on Reverse Fundamental Channel, and transmits the ACK/DRC feedback message of each forward channel to access network.
Described backward channel comprises: reverse CDMA channel, and described Reverse Fundamental Channel comprises: oppositely basic CDMA Channel.
Description by technique scheme as can be known, by from each backward channel, choosing Reverse Fundamental Channel, as choose reverse pilot intensity is big, load is lower backward channel as Reverse Fundamental Channel, make message such as the important control message that accesses terminal such as NAK, can transfer to access network reliably by Reverse Fundamental Channel, simultaneously, avoided accessing terminal the backward channel of choosing message such as transmission NAK etc. arbitrarily process, and access network specify the process of the backward channel of message such as feeding back ACK, DRC arbitrarily; Multiplexing by on Reverse Fundamental Channel, carrying out long code, and on the multiplexing Reverse Fundamental Channel of long code the feedback a plurality of forward channels ACK message, DRC message, simplified the ACK that feeds back a plurality of forward channels, the processing procedure of DRC message; Transmit in channel assignment message by the information-bearing with Reverse Fundamental Channel, making accesses terminal can obtain the information of Reverse Fundamental Channel easily; By with the index value of backward channel frequency ascending order/descending information, make Reverse Fundamental Channel be easy to determine as Reverse Fundamental Channel; Owing to the feedback channel of forward channel is realized by Reverse Fundamental Channel, so, can not comprise FeedbackReverse Channel Index field in the channel assignment message of the present invention, simplified message content; Thereby realized raising transmission of messages reliability by technical scheme provided by the invention, improved the service reliability that accesses terminal, simplified message is handled the purpose of complexity.
Description of drawings
Fig. 1 is symmetrical assignment mode schematic diagram;
Fig. 2 is asymmetric assignment mode schematic diagram;
Fig. 3 is the method schematic diagram of access terminal transmitting message to access network of the present invention.
Embodiment
When having a plurality of backward channel, the channel characteristics of a plurality of backward channels such as reverse pilot intensity, load etc. can there are differences, if message such as control messages that some that access terminal are important such as NAK are when the relatively poor reverse channel transmission of channel transmission quality, can there be the insecure phenomenon of transmission of messages, thereby the quality of service that accesses terminal is affected; If access network can be chosen a channel as choosing the channel of the backward channel that reverse pilot intensity is big, load is lower from backward channel, make the control messages important that access terminal according to this reverse channel transmission, the reliability of transmission of messages is effectively guaranteed, and, multiplexing by on this backward channel, carrying out long code, on this backward channel, feed back ACK, the DRC message of a plurality of forward channels simultaneously, simplified the complexity of Message Processing; Simultaneously, also avoided accessing terminal and chosen the process of the backward channel that transmits message such as NAK arbitrarily, avoided access network to specify the process of the backward channel of message such as feeding back ACK, DRC arbitrarily.
Therefore, core of the present invention is: access network is chosen Reverse Fundamental Channel from backward channel, and access network is issued to the identification information of its Reverse Fundamental Channel of choosing and accesses terminal, and accesses terminal according to Reverse Fundamental Channel to the access network message transfer.
Based on core concept of the present invention technical scheme provided by the invention is further described below.
The present invention at first should choose Reverse Fundamental Channel from each backward channel, when backward channel exists when a plurality of, can be according to the pilot frequency intensity of backward channel, be responsible for waiting the channel index from a plurality of backward channels, to choose Reverse Fundamental Channel, in accompanying drawing 3, in the asymmetric assignment mode, there are three channels in forward, it is forward channel 1, forward channel 2 and forward channel 3, oppositely there are two channels, be backward channel 1 and backward channel 2, if the pilot frequency intensity of backward channel 1 is better than the pilot frequency intensity of the channel of backward channel 2, and the load of backward channel 1 is lower than the load of backward channel 2, then with backward channel 1 as Reverse Fundamental Channel.
After having determined Reverse Fundamental Channel, access network need be issued to the identification information of Reverse Fundamental Channel and access terminal, access network issues the method for identification information of Reverse Fundamental Channel to accessing terminal very flexible, as setting up a new message, transmit the identification information of Reverse Fundamental Channel specially by this new message for the identification information of Reverse Fundamental Channel; The present invention also can be transmitted the identification information of Reverse Fundamental Channel by existing message, as transmit the identification information of Reverse Fundamental Channel by channel assignment message.
When adopting channel assignment message to transmit the identification information of Reverse Fundamental Channel, accessing terminal to obtain the identification information of Reverse Fundamental Channel more easily.
When using the identification information of channel assignment message transmission Reverse Fundamental Channel, when carrying out channel assignment at every turn, issuing channel assignment message, all should clear and definite Reverse Fundamental Channel.The identification information of Reverse Fundamental Channel can be carried in the message header of channel assignment message.Because Reverse Fundamental Channel can be used to realize the ACK/DRC feedback channel based on the multiplexing many forward channels of long code, so, clear and definite behind the Reverse Fundamental Channel in channel assignment message, Feedback Reverse Channel Index field has just lost the meaning that exists, like this, can not comprise Feedback Reverse ChannelIndex field in the channel assignment message among the present invention, thereby simplify message structure, save the Channel Transmission resource.
Channel assignment message of the present invention is as shown in table 2.
Table 2
| Field | Length(bits) |
| MeSSageID | 8 |
| MessageSequence | 8 |
| DSCChannelGain | 5 |
| FrameOffset | 4 |
| NumSectors | 3 |
| NumForwardChannels | 4 |
| ReversePrimaryChannelIndex | 5 |
| Reserved | 3 |
NumSectors occurrences of the followingSectorInformation record：
| RABLength | 2 |
| RABOffset | 3 |
| RAChannelGain | 2 |
| PilotPN | 9 |
| SofterHandoff | 1 |
NumForwardChannels occurrences of thefollowing ActiveSetParameters record(startingfrom AssignedChannel and ending at MACIndex，inclusive)：{
| AssignedChannel | 0 or 24 |
| LongCodeMaskIndex | 4 |
| FeedbackReversechannelIndex | 5 |
| DRCCover | 3 |
| DRCLength | 2 |
| DRCChannelGain | 6 |
| ACKChannelGain | 6 |
| ReverseChannelEnabled | 1 |
NumSectors occurrences of the following record：
{
| TrafficMACIndex | 8 |
| MACIndex | 0 or 8 |
}
}
N occurrences of the following field，where N is thenumber of SofterHandoff fields set to‘0’in thismessage
| DSC | 3 |
| ReverseChannelConfiguration | 2 |
| Configuration | Variable |
| Reserved | Variable |
In the table 2, the Reverse Primary ChannelIndex of message header is the identification information of Reverse Fundamental Channel, can take 5 bits, the reservation position of 3 bits also should be set in the message header of channel assignment message, to guarantee the principle of the whole byte-aligned of message header formal definition.
The identification information of Reverse Fundamental Channel can be for according to the ascending order of backward channel frequency or the index value of descending among the present invention, when being " n " as the identification information of Reverse Fundamental Channel, represent that all assignments in the backward channel that accesses terminal, are Reverse Fundamental Channel according to frequency ascending order n backward channel in proper order.
In the table 2, Feedback Reverse ChannelIndex field is deleted, because all forward channels all are to come feeding back ACK/DRC information by Reverse Fundamental Channel, so, do not need extra field to illustrate.
After being provided with the form of channel assignment message, when needs carried out channel assignment, access network was issued to channel assignment message and accesses terminal.Access terminal and determine Reverse Fundamental Channel according to the Reverse PrimaryChannelIndex in the channel assignment message, as determining that the backward channel 1 among Fig. 2 is a Reverse Fundamental Channel, like this, transmit in the process of data to accessing terminal at access network, find to have the loss of data phenomenon if access terminal, will be that Reverse Fundamental Channel sends NAKs message to access network by backward channel 1, the notice access network needs data retransmission.Simultaneously, in the ACK/DRC channel implementation multiplexing based on long code, also can select the feedback channel of Reverse Fundamental Channel as all forward channels for use, it is multiplexing to carry out long code on the basis of Reverse Fundamental Channel, feeds back the ACK/DRC message of a plurality of forward channels.
If only there is 1 backward channel, so, this backward channel is exactly a Reverse Fundamental Channel.
Certainly, the message of transmitting on the Reverse Fundamental Channel of the present invention is not limited to above-mentioned three kinds, and other important control messages also can be transmitted on Reverse Fundamental Channel, to guarantee the transmission reliability of these control messages.
Backward channel in the above embodiment of the present invention can be reverse CDMA channel, i.e. 1 reverse carrier wave chain circuit of certain in the multi-carrier DO system.Reverse Fundamental Channel can be oppositely basic CDMA Channel.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, and the claim of application documents of the present invention comprises these distortion and variation.
Claims (10)
1, the method for access terminal transmitting message to access network in a kind of multi-carrier DO system is characterized in that, comprises step:
A, access network are chosen Reverse Fundamental Channel from backward channel;
B, access network are issued to the identification information of its Reverse Fundamental Channel of choosing and access terminal;
C, access terminal according to Reverse Fundamental Channel to the access network message transfer.
2, the method for access terminal transmitting message to access network in a kind of multi-carrier DO system as claimed in claim 1 is characterized in that described step a specifically comprises:
Access network is chosen Reverse Fundamental Channel according to the channel characteristics of each backward channel from each backward channel.
3, the method for access terminal transmitting message to access network in a kind of multi-carrier DO system as claimed in claim 2 is characterized in that described channel characteristics is: reverse pilot intensity and/or load.
4, the method for access terminal transmitting message to access network in a kind of multi-carrier DO system as claimed in claim 1 is characterized in that the identification information of described Reverse Fundamental Channel is: the ascending order/descending index value of Reverse Fundamental Channel in backward channel.
5, the method for access terminal transmitting message to access network in a kind of multi-carrier DO system as claimed in claim 1 is characterized in that the identification information of described Reverse Fundamental Channel takies 5 bits.
6, the method for access terminal transmitting message to access network in a kind of multi-carrier DO system as claimed in claim 1 is characterized in that described step b specifically comprises:
Access network is carried on the identification information of Reverse Fundamental Channel to be issued in the channel assignment message and accesses terminal.
7, the method for access terminal transmitting message to access network in a kind of multi-carrier DO system as claimed in claim 6 is characterized in that described method also comprised before step a:
In the message header of channel assignment message, increase the Reverse Fundamental Channel field;
And described step b specifically comprises:
Access network is carried on the identification information of Reverse Fundamental Channel in the Reverse Fundamental Channel field of channel assignment message, and channel assignment message is issued to accesses terminal.
8, the method for access terminal transmitting message to access network in a kind of multi-carrier DO system as claimed in claim 6 is characterized in that, does not comprise in the described channel assignment message: Feedback Reverse ChannelIndex field.
9, as the method for access terminal transmitting message to access network in the described a kind of multi-carrier DO system of arbitrary claim in the claim 1 to 8, it is characterized in that described step c specifically comprises:
Access terminal on Reverse Fundamental Channel to the NAK message of access network transmission based on radio link protocol; And/or
Accessing terminal, it is multiplexing to carry out long code on Reverse Fundamental Channel, and transmits the ACK/DRC feedback message of each forward channel to access network.
10, as the method for access terminal transmitting message to access network in the described a kind of multi-carrier DO system of arbitrary claim in the claim 1 to 8, it is characterized in that, described backward channel comprises: reverse CDMA channel, and described Reverse Fundamental Channel comprises: oppositely basic CDMA Channel.
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| CN 200510090312 CN1863112A (en) | 2005-08-12 | 2005-08-12 | Method for access terminal transmitting message to access network in multi-carrier DO system |
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| CN 200510090312 CN1863112A (en) | 2005-08-12 | 2005-08-12 | Method for access terminal transmitting message to access network in multi-carrier DO system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008011804A1 (en) * | 2006-07-17 | 2008-01-31 | Huawei Technologies Co., Ltd. | Method and network device for allocating cell freqency band |
| WO2009089789A1 (en) * | 2008-01-10 | 2009-07-23 | Huawei Technologies Co., Ltd. | Method, terminal and base station for band accessing and switching |
| WO2011153701A1 (en) * | 2010-06-10 | 2011-12-15 | Nokia Corporation | Method and apparatus for performing contention based random access |
| WO2012034310A1 (en) * | 2010-09-14 | 2012-03-22 | 中兴通讯股份有限公司 | Choice method and device for forward feedback channel of forward/reverse dissymmetrical channel |
| CN101548562B (en) * | 2006-12-04 | 2013-10-16 | 高通股份有限公司 | Method of acknowledgement of control messages in a wireless communication system |
-
2005
- 2005-08-12 CN CN 200510090312 patent/CN1863112A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008011804A1 (en) * | 2006-07-17 | 2008-01-31 | Huawei Technologies Co., Ltd. | Method and network device for allocating cell freqency band |
| CN101548562B (en) * | 2006-12-04 | 2013-10-16 | 高通股份有限公司 | Method of acknowledgement of control messages in a wireless communication system |
| WO2009089789A1 (en) * | 2008-01-10 | 2009-07-23 | Huawei Technologies Co., Ltd. | Method, terminal and base station for band accessing and switching |
| WO2011153701A1 (en) * | 2010-06-10 | 2011-12-15 | Nokia Corporation | Method and apparatus for performing contention based random access |
| US9295084B2 (en) | 2010-06-10 | 2016-03-22 | Nokia Technologies Oy | Method and apparatus for performing contention based random access |
| WO2012034310A1 (en) * | 2010-09-14 | 2012-03-22 | 中兴通讯股份有限公司 | Choice method and device for forward feedback channel of forward/reverse dissymmetrical channel |
| CN102404799A (en) * | 2010-09-14 | 2012-04-04 | 中兴通讯股份有限公司 | Method and device for selecting front feedback channel of front reverse non-symmetrical channel |
| CN102404799B (en) * | 2010-09-14 | 2016-06-15 | 中兴通讯股份有限公司 | The system of selection of a kind of front reversely feed-forward channel of nonsymmetric channel and device |
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