CN105102084A

CN105102084A - Code channel selection method and device

Info

Publication number: CN105102084A
Application number: CN201480000172.7A
Authority: CN
Inventors: 范叔炬; 汪凡; 马雪利
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-03-20
Filing date: 2014-03-20
Publication date: 2015-11-25
Anticipated expiration: 2034-03-20
Also published as: WO2015139277A1; CN105102084B

Abstract

The invention provides a code channel selection method and device, which can increase the uplink transmission efficiency during an operation where a variable bandwidth is set to zero. The method comprises: acquiring a bandwidth contraction-expansion factor and the bit number of a first sequence of channel coding; according to the bandwidth contraction-expansion factor, the bit number of the first sequence of the channel coding and a pre-set first set, determining the first bit number of a second sequence, wherein the second sequence is an output sequence after rate matching is conducted on the first sequence of the channel coding according to the bandwidth contraction-expansion factor; according to the first bit number of the second sequence, acquiring first information about the second sequence, wherein the first information comprises a first spectrum spreading factor of each code channel in at least one physical channel code channel corresponding to the second sequence; and according to the first spectrum spreading factor of each code channel and the bandwidth contraction-expansion factor, determining a spectrum spreading code corresponding to each code channel. The present invention is applied to the field of communications.

Description

A kind of code channel choosing method and device

Technical field

The present invention relates to the communications field, particularly relate to a kind of code channel choosing method and device.

Background technology

Along with the development of the communication technology, in order to be optimized and evolution for Packet Service further, High Speed Uplink Packet access (highspeeduplinkpacketaccess, HSUPA) technology is introduced into third generation partner program (3rdGenerationPartnershipProject, 3GPP) UMTS (UniversalMobileTelecommunicationsSystem, UMTS) in version 6 (Release6, Rel.6).

In prior art, terminal (UserEquipment, UE), after choosing transmission block length, needs transmission block to carry out code multiplexing on physical channel.Wherein, code multiplexing process specifically comprises: Cyclic Redundancy Code (CyclicRedundancyCode, CRC) interpolation, code block segmentation, channel coding, physical layer hybrid automatic repeat-request (HybridAutomaticRepeatRequest, HARQ) function/rate-matched, physical channel segmentation, intertexture and physical channel map.Wherein, physical layer HARQ function/rate matching procedure needs to carry out code channel selection according to the fast size of transmission and parameters of rate matching.

In prior art, when carrying out code channel and selecting, use 3GPP technical specification 25.213 (TechnicalSpecification25.213, TS25.213) enhanced uplink dedicated channel (EnhanceduplinkDedicatedChannel of regulation in, the spreading code of Dedicated Physical Data Channel (E-DCHDedicatedPhysicalDataChannel, E-DPDCH) each code channel E-DCH) is selected.

But, in the bandwidth varying UMTS problem that 3GPP meeting is being discussed, be intended to the scattered frequency spectrum of under-utilized 5MHz and 5MHz integral multiple, dispose the network of similar UMTS thereon and service is provided.Research trend is in the solution using a kind of time quantum to remain unchanged, and such as narrow-band filtering scheme, the Signal Compression by the 3.84MHZ of emitter generation is transmitted on arrowband 2.5MHZ.The program brings following problem: intersymbol interference is large, does not utilize high-speed transfer.For head it off, propose a new solution for signal to be carried out chip zero-setting operation before carrying out narrow-band filtering, namely every F chip signal retains a signal, and other signal zero setting, to disturb between erasure signal.Although the method can be disturbed between erasure signal, but cause a part of code channel identical, reduce available codes number of channels.And then, if use the spreading code of each code channel of E-DPDCH specified in TS25.213 to carry out code channel selection, may occur that optional code channel exceedes the situation allowing code channel scope, E-DCH transmits to cause UE to support, therefore under causing bandwidth varying chip zero-setting operation, uplink inefficiency.

Summary of the invention

The embodiment of the present invention provides a kind of code channel choosing method and device, can improve the uplink efficiency under bandwidth varying zero-setting operation.

For achieving the above object, the embodiment of the present invention provides following scheme:

First aspect, provide a kind of code channel selecting device, described device comprises: the first acquiring unit, the first determining unit, second acquisition unit, the second determining unit;

Described first acquiring unit, for obtaining the bit number of the First ray of bandwidth contraction-expansion factor and channel coding;

Described first determining unit, for bit number and pre-configured first set of the First ray of the described bandwidth contraction-expansion factor obtained according to described first acquiring unit, described channel coding, determine the first bit number of the second sequence, wherein, described second sequence is carry out the output sequence after rate-matched according to described bandwidth contraction-expansion factor to the First ray of described channel coding;

Described second acquisition unit, for the first bit number of described second sequence determined according to described first determining unit, obtain the first information of described second sequence, wherein, the described first information comprises the first spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers;

Described second determining unit, for the first spreading factor of described each code channel of obtaining according to described second acquisition unit and described bandwidth contraction-expansion factor, determines the spreading code that described each code channel is corresponding.

In the first possible implementation of first aspect, described second determining unit specifically for:

According to the first spreading factor and the described bandwidth contraction-expansion factor of described each code channel, determine the spreading code that described each code channel is corresponding, wherein, described spreading code is numbered by spreading factor and code channel and is determined;

The spreading factor of described spreading code is the first spreading factor of described each code channel and the product of described bandwidth contraction-expansion factor.

According to the first possible implementation of first aspect, in the implementation that the second of first aspect is possible, described code channel is numbered:

If SF ' >=4, Y=SF '/4;

If SF ' < 4, Y=SF '/2;

Wherein, SF ' represents described first spreading factor, and Y represents that described code channel is numbered.

In conjunction with first aspect or the first possible implementation of first aspect or the possible implementation of the second of first aspect, in the third possible implementation of first aspect, described device also comprises: judging unit, updating block;

Described judging unit, for at first bit number of described second acquisition unit according to described second sequence, before obtaining the first information of described second sequence, judge whether the first bit number of described second sequence is less than the first pre-determined threshold, wherein, the spreading factor that described first pre-determined threshold is corresponding and the product of described bandwidth contraction-expansion factor are not more than 256;

If described judging unit judges that the first bit number of described second sequence is less than described first pre-determined threshold, the first bit number of described second sequence is updated to described first pre-determined threshold by described updating block.

In conjunction with first aspect or the first possible implementation of first aspect or the possible implementation of the second of first aspect, in the 4th kind of possible implementation of first aspect, described device also comprises: the 3rd acquiring unit, judging unit, the 3rd determining unit, the 4th acquiring unit.4th determining unit, performance element;

Described 3rd acquiring unit, for at first bit number of described second acquisition unit according to described second sequence, before obtaining the first information of described second sequence, according to described bandwidth contraction-expansion factor, obtain the first pre-determined threshold, wherein, if described bandwidth contraction-expansion factor equals 2, it is bit number corresponding when being not less than 2 that described first pre-determined threshold is configured to spreading factor;

Described judging unit, for judging whether the first bit number of described second sequence that described 3rd acquiring unit obtains is less than described first pre-determined threshold;

Described 3rd determining unit, if judge that the first bit number of described second sequence is less than described first pre-determined threshold for described judging unit, according to bit number and pre-configured second set of the First ray of described channel coding, determine the second bit number of the second sequence;

Described 4th acquiring unit, for the second bit number of described second sequence determined according to described 3rd determining unit, obtain the second information of described second sequence, wherein, described second information comprises the spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers;

Described 4th determining unit, for the spreading factor of the described each code channel according to described 4th acquiring unit acquisition, determines the spreading code that described each code channel is corresponding;

Described performance element, if judge that the second bit number of described second sequence is not less than described first pre-determined threshold for described judging unit, performs the first bit number according to described second sequence, obtains the step of the first information of described second sequence.

According to the 4th kind of possible implementation of first aspect, in the 5th kind of possible implementation of first aspect, if described bandwidth contraction-expansion factor is greater than 2, described first pre-determined threshold is configured to bit number corresponding when spreading factor is greater than 2.

In conjunction with first aspect or the first possible implementation of first aspect or the possible implementation of the second of first aspect, in the 6th kind of possible implementation of first aspect, described device also comprises: judging unit, updating block;

Described judging unit, after obtaining the bit number of the First ray of described acquisition bandwidth contraction-expansion factor and channel coding in described first acquiring unit, described first determining unit is according to described bandwidth contraction-expansion factor, the bit number of the First ray of described channel coding and the pre-configured first set, before determining the first bit number of the second sequence, judge whether the bit number of described First ray is less than the second pre-determined threshold, wherein, the first spreading factor determined according to described bandwidth contraction-expansion factor and described second pre-determined threshold and the product of described bandwidth contraction-expansion factor are not more than 256,

Described updating block, if judge that the bit number of described First ray is less than described second pre-determined threshold for described judging unit, is updated to described second pre-determined threshold by the bit number of described First ray.

In conjunction with first aspect or the first possible implementation of first aspect or the possible implementation of the second of first aspect, in the 7th kind of possible implementation of first aspect, described device also comprises: the 3rd acquiring unit, judging unit, the 3rd determining unit, the 4th acquiring unit.4th determining unit, performance element;

Described 3rd acquiring unit, after obtaining the bit number of the First ray of described acquisition bandwidth contraction-expansion factor and channel coding in described first acquiring unit, described first determining unit is according to described bandwidth contraction-expansion factor, the bit number of the First ray of described channel coding and the pre-configured first set, before determining the first bit number of the second sequence, according to described bandwidth contraction-expansion factor, obtain the second pre-determined threshold, wherein, if bandwidth contraction-expansion factor equals 2, gather according to described second pre-determined threshold and pre-configured first spreading factor determined and be not less than 2,

Described judging unit, for judging whether the bit number of described First ray is less than described second pre-determined threshold;

Described 3rd determining unit, if judge that the bit number of described First ray is less than described second pre-determined threshold for described judging unit, according to bit number and pre-configured second set of the First ray of described channel coding, determine the second bit number of the second sequence;

Described performance element, if judge that the bit number of described First ray is not less than described second pre-determined threshold for described judging unit, perform the bit number according to the First ray of described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, determine the step of the first bit number of the second sequence.

According to the 7th kind of possible implementation of first aspect, in the 8th kind of possible implementation of first aspect, if described bandwidth contraction-expansion factor is greater than 2, gathers according to described second pre-determined threshold and pre-configured first spreading factor determined and be greater than 2.

In conjunction with the first of first aspect or first aspect to any one implementation in the 8th kind of possible implementation, in the 9th kind of possible implementation of first aspect, the described first information also comprises:

The physical channel code channel number that the modulation system of described second sequence or described second sequence pair are answered.

According to the 9th kind of possible implementation of first aspect, in the tenth kind of possible implementation of first aspect, described device also comprises: the 5th determining unit, segmenting unit;

Described 5th determining unit, for according to the first spreading factor of described modulation system, described each code channel and described bandwidth contraction-expansion factor, determines the bit number of described each code channel;

Described segmenting unit, for the described physical channel code channel number comprised in the bit number of described each code channel determined according to described 5th determining unit and the described first information, carries out physical channel segmentation to described second sequence.

According to the tenth kind of possible implementation of first aspect, in the 11 kind of possible implementation of first aspect, described 5th determining unit specifically for:

According to the first spreading factor of described modulation system, described each code channel, described bandwidth contraction-expansion factor and following formula, determine the bit number of described each code channel:

U (P)=every sign bit number × (every Transmission Time Interval TTI number of chips/(the first spreading factor × bandwidth contraction-expansion factor of P code channel)),

Wherein, U (P) represents the bit number of P code channel, and described every sign bit number is determined by described modulation system, and every TTI number of chips is predetermined fixed value.

In conjunction with the first of first aspect or first aspect to any one implementation in the 11 kind of possible implementation, in the 12 kind of possible implementation of first aspect, the second bit number of described second sequence equals the business of the first bit number divided by described bandwidth contraction-expansion factor of described second sequence.

Second aspect, provide a kind of code channel selecting device, described device comprises: the first acquiring unit, the first determining unit, second acquisition unit, the second determining unit;

Described first acquiring unit, for obtaining the bit number of First ray of bandwidth contraction-expansion factor, the first set and channel coding, wherein, described first set is second subset gathered corresponding with described bandwidth contraction-expansion factor;

Described first determining unit, for bit number and described first set of the First ray of the described channel coding according to described first acquiring unit acquisition, determine the bit number of the second sequence, wherein, described second sequence is carry out the output sequence after rate-matched to the First ray of described channel coding;

Described second acquisition unit, for the bit number of described second sequence determined according to described first determining unit, obtain the first information of described second sequence, wherein, the described first information comprises the spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers;

Described second determining unit, for the spreading factor of described each code channel that obtains according to described second acquisition unit and described bandwidth contraction-expansion factor, determines the spreading code that described each code channel is corresponding.

In the first possible implementation of second aspect, described first acquiring unit specifically for:

According to described bandwidth contraction-expansion factor and the first pre-configured corresponding relation, obtain described first set, wherein, in described first corresponding relation, comprise described bandwidth contraction-expansion factor and the described first one-to-one relationship gathered;

Or,

Described first acquiring unit specifically for:

Obtain pre-configured described first set, wherein, described first set be gather according to corresponding with described bandwidth contraction-expansion factor second pre-configured.

In conjunction with the first possible implementation of second aspect or second aspect, in the implementation that the second of second aspect is possible, described second set comprises:

If described bandwidth contraction-expansion factor is 2, described second set is { N ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, N ₄, 2 × N ₄, 2 × N ₄+ 2 × N ₈, 2 × M ₄+ 2 × M ₈, 2 × L ₄+ 2 × L ₈; Or

If described bandwidth contraction-expansion factor is 4, described second set is { N ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, 2 × N ₈, 2 × N ₈+ 2 × N ₁₆, 2 × M ₈+ 2 × M ₁₆, 2 × L ₈+ 2 × L ₁₆;

Wherein, N represents biphase phase shift keying BPSK modulation system, and M represents 4 pulse-amplitude modulation 4PAM modulation systems, and L represents 8PAM modulation system.

The implementation possible according to the second of second aspect, in the third possible implementation of second aspect, described second determining unit specifically for:

According to spreading factor and the described bandwidth contraction-expansion factor of described each code channel, determine the spreading code that described each code channel is corresponding, wherein, described spreading code is numbered by described spreading factor and code channel and is determined.

According to the third possible implementation of second aspect, in the 4th kind of possible implementation of second aspect, described code channel is numbered:

If SF >=4F, Y=SF/ (4F);

If SF < is 4F, Y=SF/ (2F);

Wherein, SF represents described spreading factor, and Y represents that described code channel is numbered, and F represents described bandwidth contraction-expansion factor.

The third aspect, provide a kind of code channel choosing method, described method comprises:

Obtain the bit number of the First ray of bandwidth contraction-expansion factor and channel coding;

According to bit number and pre-configured first set of the First ray of described bandwidth contraction-expansion factor, described channel coding, determine the first bit number of the second sequence, wherein, described second sequence is carry out the output sequence after rate-matched according to described bandwidth contraction-expansion factor to the First ray of described channel coding;

According to the first bit number of described second sequence, obtain the first information of described second sequence, wherein, the described first information comprises the first spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers;

According to the first spreading factor and the described bandwidth contraction-expansion factor of described each code channel, determine the spreading code that described each code channel is corresponding.

In the first possible implementation of the third aspect, described the first spreading factor according to described each code channel and described bandwidth contraction-expansion factor, determine to comprise the spreading code that described each code channel is corresponding:

According to the first possible implementation of first aspect, in the implementation that the second of the third aspect is possible, described code channel is numbered:

If SF ' >=4, Y=SF '/4;

If SF ' < 4, Y=SF '/2;

In conjunction with the third aspect or the first possible implementation of the third aspect or the possible implementation of the second of the third aspect, in the third possible implementation of the third aspect, at described the first bit number according to described second sequence, before obtaining the first information of described second sequence, also comprise:

Judge whether the first bit number of described second sequence is less than the first pre-determined threshold, wherein, the product of the spreading factor that described first pre-determined threshold is corresponding and described bandwidth contraction-expansion factor is not more than 256;

If the first bit number of described second sequence is less than described first pre-determined threshold, the first bit number of described second sequence is updated to described first pre-determined threshold.

In conjunction with the third aspect or the first possible implementation of the third aspect or the possible implementation of the second of the third aspect, in the 4th kind of possible implementation of the third aspect, at described the first bit number according to described second sequence, before obtaining the first information of described second sequence, also comprise:

According to described bandwidth contraction-expansion factor, obtain the first pre-determined threshold, wherein, if described bandwidth contraction-expansion factor equals 2, it is bit number corresponding when being not less than 2 that described first pre-determined threshold is configured to spreading factor;

Judge whether the first bit number of described second sequence is less than described first pre-determined threshold;

If the first bit number of described second sequence is less than described first pre-determined threshold, according to bit number and pre-configured second set of the First ray of described channel coding, determine the second bit number of the second sequence;

According to the second bit number of described second sequence, obtain the second information of described second sequence, wherein, described second information comprises the spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers;

According to the spreading factor of described each code channel, determine the spreading code that described each code channel is corresponding;

If the second bit number of described second sequence is not less than described first pre-determined threshold, perform the first bit number according to described second sequence, obtain the step of the first information of described second sequence.

According to the 4th kind of possible implementation of the third aspect, in the 5th kind of possible implementation of the third aspect, if described bandwidth contraction-expansion factor is greater than 2, described first pre-determined threshold is configured to bit number corresponding when spreading factor is greater than 2.

In conjunction with the third aspect or the first possible implementation of the third aspect or the possible implementation of the second of the third aspect, in the 6th kind of possible implementation of the third aspect, after the bit number of the First ray of described acquisition bandwidth contraction-expansion factor and channel coding, the bit number of the described First ray according to described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, before determining the first bit number of the second sequence, also comprise:

Judge whether the bit number of described First ray is less than the second pre-determined threshold, wherein, the first spreading factor determined according to described bandwidth contraction-expansion factor and described second pre-determined threshold and the product of described bandwidth contraction-expansion factor are not more than 256;

If the bit number of described First ray is less than described second pre-determined threshold, the bit number of described First ray is updated to described second pre-determined threshold.

In conjunction with the third aspect or the first possible implementation of the third aspect or the possible implementation of the second of the third aspect, in the 7th kind of possible implementation of the third aspect, after the bit number of the First ray of described acquisition bandwidth contraction-expansion factor and channel coding, the bit number of the described First ray according to described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, before determining the first bit number of the second sequence, also comprise:

According to described bandwidth contraction-expansion factor, obtain the second pre-determined threshold, wherein, if bandwidth contraction-expansion factor equals 2, gather according to described second pre-determined threshold and pre-configured first spreading factor determined and be not less than 2;

Judge whether the bit number of described First ray is less than described second pre-determined threshold;

If the bit number of described First ray is less than described second pre-determined threshold, according to bit number and pre-configured second set of the First ray of described channel coding, determine the second bit number of the second sequence;

If the bit number of described First ray is not less than described second pre-determined threshold, perform the bit number according to the First ray of described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, determine the step of the first bit number of the second sequence.

According to the 7th kind of possible implementation of the third aspect, in the 8th kind of possible implementation of the third aspect, if described bandwidth contraction-expansion factor is greater than 2, gathers according to described second pre-determined threshold and pre-configured first spreading factor determined and be greater than 2.

In conjunction with the first of the third aspect or the third aspect to any one implementation in the 8th kind of possible implementation, in the 9th kind of possible implementation of the third aspect, the described first information also comprises:

According to the 9th kind of possible implementation of the third aspect, in the tenth kind of possible implementation of the third aspect, described method also comprises:

According to the first spreading factor and the described bandwidth contraction-expansion factor of described modulation system, described each code channel, determine the bit number of described each code channel;

According to bit number and the described physical channel code channel number of described each code channel, physical channel segmentation is carried out to described second sequence.

According to the tenth kind of possible implementation of the third aspect, in the 11 kind of possible implementation of the third aspect, described the first spreading factor according to described modulation system, described each code channel and described bandwidth contraction-expansion factor, determine the bit number of described each code channel, comprising:

In conjunction with the first of the third aspect or the third aspect to any one implementation in the 11 kind of possible implementation, in the 12 kind of possible implementation of the third aspect, described method also comprises:

Second bit number of described second sequence equals the business of the first bit number divided by described bandwidth contraction-expansion factor of described second sequence.

Fourth aspect, provide a kind of code channel choosing method, described method comprises:

Obtain the bit number of First ray of bandwidth contraction-expansion factor, the first set and channel coding, wherein, described first set is second subset gathered corresponding with described bandwidth contraction-expansion factor;

According to bit number and described first set of the First ray of described channel coding, determine the bit number of the second sequence, wherein, described second sequence is carry out the output sequence after rate-matched to the First ray of described channel coding;

According to the bit number of described second sequence, obtain the first information of described second sequence, wherein, the described first information comprises the spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers;

According to spreading factor and the described bandwidth contraction-expansion factor of described each code channel, determine the spreading code that described each code channel is corresponding.

In the first possible implementation of fourth aspect, described acquisition first is gathered, and comprising:

Or,

Described acquisition first is gathered, and comprising:

In conjunction with the first possible implementation of fourth aspect or fourth aspect, in the implementation that the second of fourth aspect is possible, described second set comprises:

The implementation possible according to the second of fourth aspect, in the third possible implementation of fourth aspect, the described spreading factor according to described each code channel and described bandwidth contraction-expansion factor, determine to comprise the spreading code that described each code channel is corresponding:

According to the third possible implementation of fourth aspect, in the 4th kind of possible implementation of fourth aspect, described code channel is numbered:

If SF >=4F, Y=SF/4F;

If SF < is 4F, Y=SF/2F;

5th aspect, provide a kind of code channel selecting device, described device comprises: processor, transceiver, memory and communication bus;

Described communication bus, for described processor, the connection communication between described transceiver, described holder;

Described transceiver, for described device and outside communication;

Described processor, for calling the program code stored in described memory, performs the method as described in any one of the third aspect.

6th aspect, provide a kind of code channel selecting device, described device comprises: processor, transceiver, memory and communication bus;

Described transceiver, for described device and outside communication;

Described processor, for calling the program code stored in described memory, performs the method as described in any one of fourth aspect.

Based on the such scheme that the embodiment of the present invention provides, because the embodiment of the present invention can determine the spreading code of each code channel in conjunction with bandwidth contraction-expansion factor, make under bandwidth varying chip zero-setting operation, when using the spreading code of each code channel of E-DPDCH specified in TS25.213 to carry out code channel selection, optional code channel is all within the scope of permission code channel; Or the embodiment of the present invention can by revising the N defined in agreement TS25.212 according to bandwidth contraction-expansion factor _{e, data}maximum optional set, and the spreading code of each code channel is determined according to the spreading factor of each code channel and bandwidth contraction-expansion factor, make under bandwidth varying chip zero-setting operation, when carrying out code channel selection according to the spreading code of each code channel, optional code channel is all within the scope of permission code channel, and then UE can support that E-DCH transmits, improve the uplink efficiency under bandwidth varying chip zero-setting operation.

Accompanying drawing explanation

The workflow schematic diagram of a kind of existing HSUPA technology that Fig. 1 provides for the embodiment of the present invention;

A kind of HSUPA code multiplexing schematic flow sheet that Fig. 2 provides for the embodiment of the present invention;

Fig. 3 is chip zero-setting operation schematic diagram when a kind of bandwidth contraction-expansion factor that the embodiment of the present invention provides is 2;

Fig. 4 is chip zero-setting operation schematic diagram when a kind of bandwidth contraction-expansion factor that the embodiment of the present invention provides is 4;

A kind of code channel selecting device structural representation that Fig. 5 provides for the embodiment of the present invention;

The another kind of code channel selecting device structural representation that Fig. 6 provides for the embodiment of the present invention;

Another code channel selecting device structural representation that Fig. 7 provides for the embodiment of the present invention;

Another code channel selecting device structural representation that Fig. 8 provides for the embodiment of the present invention;

Another code channel selecting device structural representation that Fig. 9 provides for the embodiment of the present invention;

A kind of code channel choosing method schematic flow sheet that Figure 10 provides for the embodiment of the present invention;

The another kind of code channel choosing method schematic flow sheet that Figure 11 provides for the embodiment of the present invention;

Another code channel choosing method schematic flow sheet that Figure 12 provides for the embodiment of the present invention;

Another code channel choosing method schematic flow sheet that Figure 13 provides for the embodiment of the present invention;

Another code channel choosing method schematic flow sheet that Figure 14 provides for the embodiment of the present invention;

Another code channel choosing method schematic flow sheet that Figure 15 provides for the embodiment of the present invention;

A kind of code channel selecting device structural representation that Figure 16 provides for the embodiment of the present invention;

The another kind of code channel selecting device structural representation that Figure 17 provides for the embodiment of the present invention.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Conveniently understand, and the description of following each embodiment is succinct, first provides briefly introducing of several existing correlation technique:

The first, HSUPA technology:

HSUPA technology introduces five new physical channels, be respectively: E-DPDCH, Dedicated Physical Control Channel (the E-DCHDedicatedPhysicalControlChannel of enhanced uplink dedicated channel, E-DPCCH), absolute grant channel (the E-DCHAbsoluteGrantChannel of enhanced uplink dedicated channel, E-AGCH), Relative Grant Channels (the E-DCHRelativeGrantChannel of enhanced uplink dedicated channel, E-RGCH), mixed automatic retransfer (the AutomaticRepeatRequest of enhanced uplink dedicated channel, ARQ) indicating channel (E-DCHHybridARQIndicatorChannel, E-HICH) and two new medium education (MediaAccessControl, MAC) entity: be positioned at the E-DCHMAC entity (MAC-e) of NodeB and be positioned at the E-DCHMAC entity (MAC-es) of RNC, and packet scheduling function from radio network controller (RadioNetworkController, RNC) Node B (base station is moved down into, NodeB), achieve the fast packet scheduling based on NodeB, and pass through HARQ, the key technology such as short frame and multi-code transmission that 2ms is wireless, the data throughput of up-link is made to can reach 5.76Mbit/s, the bearing capacity of the uplink data traffic greatly improved and the availability of frequency spectrum.

The workflow schematic diagram of the HSUPA technology of Rel.6 as shown in Figure 1, specifically comprises:

101, UE sends transfer request message to NodeB.

Concrete, in HSUPA process, first UE sends transfer request message to obtain required resource to NodeB.

102, NodeB sends authorization notification to UE.

Concrete, after NodeB receives the transfer request message of UE transmission, authorization notification will be sent to UE.

103, UE selects transmission block length according to mandate.

Concrete, UE, after the authorization notification receiving NodeB transmission, will select transmission block length according to mandate.

104, transmission block is carried out code multiplexing on physical channel according to the transmission block length selected by UE.

105, UE sends data to NodeB on the physical channel.

106, NodeB detects the data received.

107, NodeB sends HARQ-confirmation (Acknowledgement, ACK) message to UE.

Concrete, if NodeB successfully receives the data that UE sends, then feeding back ACK information is to UE; If the unsuccessful data receiving UE and send of NodeB, then feed back HARQ information to UE.

It should be noted that, the data sent in the transfer request message sent in step 101 and step 105 all carry and send on the e-dpdch, need to send together with E-DPCCH when E-DPDCH channel sends; In step 102, NodeB sends to the authorization notification of UE to be carried on E-AGCH and E-RGCH channel, wherein, E-AGCH is absolute grant (representing available maximum authorization value), and E-RGCH is relative authorization (representing the variable quantity of a mandate before current grant relatively); HARQ-ACK information in step 107 is carried on E-HICH channel, is to receiving the whether correct feedback information of data.

The code channel set that the second, TS25.212 specifies:

First the concept of spreading factor (spreadingfactors, SF) is provided:

Spreading factor (SF) is the length of spread spectrum code sequence, i.e. the number of element in spread spectrum code sequence.Such as a spreading code is (1,1 ,-1 ,-1 ,-1 ,-1,1,1), and so its spreading factor is the length 8 of this sequence.

The code channel set that TS25.212 specifies is as follows:

{SF256,SF128,SF64,SF32,SF16,SF8,SF4,2×SF4,2×SF2,2×SF2+2×SF4}，

Corresponding modulation system comprises biphase phase shift keying (BinaryPhaseShiftKeying, BPSK), 4 pulse-amplitude modulation (PulseAmplitudeModulation, and 8PAM PAM), wherein, 4PAM and 8PAM, only for 2 × SF2+2 × SF4, is also the bit number N of rate matching procedure output sequence _{e, data}complete or collected works be { N ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, N ₄, 2 × N ₄, 2 × N ₂, 2 × N ₂+ 2 × N ₄, 2 × M ₂+ 2 × M ₄, 2 × L ₂+ 2 × L ₄, wherein, N represents BPSK modulation system, and M represents 4PAM modulation system, and L represents 8PAM modulation system.

The spreading code that three, TS25.213 each code channel of the E-DPDCH specified uses:

Each code channel of the E-DPDCH that TS25.213 specifies use spreading code as shown in Table 1:

Table one E-DPDCH code channel assigns

Wherein, spread spectrum codes C _{ch, X, Y}subscript X represent spreading factor, Y represents that code channel is numbered.

Four, chip zero-setting operation:

Chip zero-setting operation is that the intersymbol interference that in solution bandwidth varying UMTS problem, narrow filters solutions causes is large, be not suitable for high speed data transfer problem and the solution proposed, namely every F chip signal retains a signal, other signal zero setting, to disturb between erasure signal, wherein, F represents bandwidth contraction-expansion factor.But the program can bring a new problem, namely cause a part of code channel identical, and then reduce available codes number of channels.

Exemplary, as shown in Figure 3, the code channel caused for chip zero-setting operation during F=2 reduces schematic diagram.In the figure, left side is the code tree structure schematic diagram before chip zero-setting operation, and right side is the code tree structure schematic diagram after chip zero-setting operation, as can be seen from right side result, owing to having 1 signal zero setting in every 2 chip signal, causes spread spectrum codes C _{ch, 2,1}the code channel of branch and spread spectrum codes C _{ch, 2,0}the code channel of branch is identical, and situation about cannot distinguish to prevent identical code channel occurs, and can make spread spectrum codes C _{ch, 2,1}the code channel of branch is unavailable, can only use the code channel of half, reduce available codes number of channels when being also F=2.

Or as shown in Figure 4, the code channel caused for chip zero-setting operation during F=4 reduces schematic diagram.In the figure, left side is the code tree structure schematic diagram before chip zero-setting operation, and right side is the code tree structure schematic diagram after chip zero-setting operation, as can be seen from right side result, owing to having 3 signal zero setting in every 4 chip signal, causes spread spectrum codes C _{ch, 4,1}, C _{ch, 4,2}, C _{ch, 4,3}the code channel of branch all and spread spectrum codes C _{ch, 4,0}the code channel of branch is identical, and situation about cannot distinguish to prevent identical code channel occurs, and can make spread spectrum codes C _{ch, 4,1}, C _{ch, 4,2}, C _{ch, 4,3}the code channel of branch is all unavailable, can only use the code channel of 1/4, reduce available codes number of channels when being also F=4.

In like manner, F=8,16 ... .2 ^ktime chip operate when the code channel that causes reduces analysis and the F=2 of situation or F=4 time analysis classes seemingly, will not enumerate herein.Chip zero-setting operation makes only have the code channel of 1/F to use, and greatly reduces available codes number of channels.

And then the spreading code that each code channel of the E-DPDCH that the TS25.213 shown in associative list one specifies uses, will produce following problem:

When F=2,

Work as N _max-dpdchwhen=0, { 2 × SF2,2 × SF2+2 × SF4} is by unavailable;

Work as N _max-dpdchwhen=1, all combinations are all unavailable, namely now cannot support that E-DCH transmits, because its spreading code has exceeded the scope allowed, mutually will disturb if use by force with control channel.

When N=4,

Work as N _max-dpdchwhen=0 or 1, all combinations are all unavailable, namely now cannot support that E-DCH transmits, because its spreading code has exceeded the scope allowed, mutually will disturb if use by force with control channel.

Therefore, when bandwidth varying chip zero-setting operation, uplink efficiency is reduced.

Five, physical layer HARQ function/rate-matched:

As shown in Figure 2, in the process of HSUPA code multiplexing, needing to carry out physical layer HARQ function/rate-matched, namely process the output sequence of channel coding, is by total bit number corresponding for its physical channel that will map by number matches.

Existing rate matching procedure has a detailed description in agreement TS25.212, repeats no more herein.This process can be expressed as follows with g (*):

Output sequence=g (list entries; N _{e, data}, other parameter) and function (1)

Wherein, g (*) represents the process determining output sequence according to *, N _{e, data}represent the bit number of this matching process output sequence, namely physical channel total bit number that can carry.N _{e, data}be calculate according to transmission block length and some other given parameter, can be expressed as follows with f (*):

N _{e, data}=f (N _e,other parameter) function (2)

Wherein, N _erepresent the bit number of transmission block after channel coding, f (*) expression determines N according to * _{e, data}process, concrete operating in the 4.8.4.1 chapters and sections of such as 3GPP agreement TS25.212V11.4.0 has a detailed description, and repeats no more herein.Other parameter comprises SET0, limit downhole parameter PL _non-maxdeng.SET0 is the parameter that network side can configure, and it is the N defined in above-mentioned agreement TS25.212 _{e, data}a subset of complete or collected works.

It should be noted that, determine N _{e, data}process nature on also determine the spreading factor SF of modulation system (BPSK, 4PAM or 8PAM), physical channel code channel number P (1,2 or 4), each code channel simultaneously _p(2,4 ..., 2 ^k..., 256), be also N _{e, data}the spreading factor SF of modulation system (BPSK, 4PAM or 8PAM), physical channel code channel number P (1,2 or 4), each code channel can be characterized _p(2,4 ..., 2 ^k..., 256).

Embodiment one,

The embodiment of the present invention provides a kind of code channel selecting device 300, and specifically as shown in Figure 5, described code channel selecting device 500 comprises: the first acquiring unit 501, first determining unit 502, second acquisition unit 503, second determining unit 504.

Described first acquiring unit 501, for obtaining the bit number of the First ray of bandwidth contraction-expansion factor and channel coding.

Described first determining unit 502, for bit number and pre-configured first set of the First ray of the described bandwidth contraction-expansion factor obtained according to described first acquiring unit 501, described channel coding, determine the first bit number of the second sequence, wherein, described second sequence is carry out the output sequence after rate-matched according to described bandwidth contraction-expansion factor to the First ray of described channel coding.

Described second acquisition unit 503, for the first bit number of described second sequence determined according to described first determining unit 502, obtain the first information of described second sequence, wherein, the described first information comprises the first spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers.

Described second determining unit 504, for the first spreading factor and the described bandwidth contraction-expansion factor of the described each code channel according to described second acquisition unit 503 acquisition, determines the spreading code that described each code channel is corresponding.

In a kind of possible implementation, described second determining unit 504 specifically for:

Preferably, described code channel numbering can be:

If SF ' >=4, Y=SF '/4;

If SF ' < 4, Y=SF '/2;

Further, as shown in Figure 6, described code channel selecting device 500 can also comprise judging unit 505, updating block 506.

Described judging unit 505, for at first bit number of described second acquisition unit 503 according to described second sequence, before obtaining the first information of described second sequence, judge whether the first bit number of described second sequence is less than the first pre-determined threshold, wherein, the spreading factor that described first pre-determined threshold is corresponding and the product of described bandwidth contraction-expansion factor are not more than 256.

If described judging unit 505 judges that the first bit number of described second sequence is less than described first pre-determined threshold, the first bit number of described second sequence is updated to described first pre-determined threshold by described updating block 506.

Optionally, as shown in Figure 7, described code channel selecting device 500 can also comprise: the 3rd acquiring unit 507, judging unit 505, the 3rd determining unit 508, the 4th acquiring unit 509, the 4th determining unit 510, performance element 511.

Described 3rd acquiring unit 507, for at first bit number of described second acquisition unit 503 according to described second sequence, before obtaining the first information of described second sequence, according to described bandwidth contraction-expansion factor, obtain the first pre-determined threshold, wherein, if described bandwidth contraction-expansion factor equals 2, it is bit number corresponding when being not less than 2 that described first pre-determined threshold is configured to spreading factor.

Described judging unit 505, for judging whether the first bit number of described second sequence that described 3rd acquiring unit 507 obtains is less than described first pre-determined threshold.

Described 3rd determining unit 508, if judge that the first bit number of described second sequence is less than described first pre-determined threshold for described judging unit 505, according to bit number and pre-configured second set of the First ray of described channel coding, determine the second bit number of the second sequence.

Described 4th acquiring unit 509, for the second bit number of described second sequence determined according to described 3rd determining unit 508, obtain the second information of described second sequence, wherein, described second information comprises the spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers.

Described 4th determining unit 510, for the spreading factor of the described each code channel according to described 4th acquiring unit 509 acquisition, determines the spreading code that described each code channel is corresponding.

Described performance element 511, if judge that the second bit number of described second sequence is not less than described first pre-determined threshold for described judging unit 505, performs the first bit number according to described second sequence, obtains the step of the first information of described second sequence.

Preferably, if described bandwidth contraction-expansion factor is greater than 2, described first pre-determined threshold is configured to bit number corresponding when spreading factor is greater than 2.

Optionally, as shown in Figure 6, described code channel selecting device 500 can also comprise: judging unit 505, updating block 506.

Described judging unit 505, after obtaining the bit number of the First ray of described acquisition bandwidth contraction-expansion factor and channel coding in described first acquiring unit 501, described first determining unit 502 is according to described bandwidth contraction-expansion factor, the bit number of the First ray of described channel coding and the pre-configured first set, before determining the first bit number of the second sequence, judge whether the bit number of described First ray is less than the second pre-determined threshold, wherein, the first spreading factor determined according to described bandwidth contraction-expansion factor and described second pre-determined threshold and the product of described bandwidth contraction-expansion factor are not more than 256.

Described updating block 506, if judge that the bit number of described First ray is less than described second pre-determined threshold for described judging unit 505, is updated to described second pre-determined threshold by the bit number of described First ray.

Optionally, as shown in Figure 7, described code channel selecting device 500 can also comprise: the 3rd acquiring unit 507, judging unit 505, the 3rd determining unit 508, the 4th acquiring unit 509.4th determining unit 510, performance element 511.

Described 3rd acquiring unit 507, after obtaining the bit number of the First ray of described acquisition bandwidth contraction-expansion factor and channel coding in described first acquiring unit 501, described first determining unit 502 is according to described bandwidth contraction-expansion factor, the bit number of the First ray of described channel coding and the pre-configured first set, before determining the first bit number of the second sequence, according to described bandwidth contraction-expansion factor, obtain the second pre-determined threshold, wherein, if bandwidth contraction-expansion factor equals 2, gather according to described second pre-determined threshold and pre-configured first spreading factor determined and be not less than 2

Described judging unit 505, for judging whether the bit number of described First ray is less than described second pre-determined threshold

Described 3rd determining unit 508, if judge that the bit number of described First ray is less than described second pre-determined threshold for described judging unit 505, according to bit number and pre-configured second set of the First ray of described channel coding, determine the second bit number of the second sequence.

Described performance element 511, if judge that the bit number of described First ray is not less than described second pre-determined threshold for described judging unit 505, perform the bit number according to the First ray of described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, determine the step of the first bit number of the second sequence.

Preferably, if described bandwidth contraction-expansion factor is greater than 2, gathers according to described second pre-determined threshold and pre-configured first spreading factor determined and be greater than 2.

Further, the described first information specifically can also comprise:

Further, as shown in Figure 8, described code channel selecting device 500 can also comprise: the 5th determining unit 512, segmenting unit 513.

Described 5th determining unit 512, for according to the first spreading factor of described modulation system, described each code channel and described bandwidth contraction-expansion factor, determines the bit number of described each code channel.

Described segmenting unit 513, for the described physical channel code channel number comprised in the bit number of described each code channel determined according to described 5th determining unit 512 and the described first information, carries out physical channel segmentation to described second sequence.

Preferably, described 5th determining unit 512 specifically for:

U (P)=every sign bit number × (every Transmission Time Interval TTI number of chips/(the first spreading factor × bandwidth contraction-expansion factor of P code channel))

Concrete, the second bit number of described second sequence equals the business of the first bit number divided by described bandwidth contraction-expansion factor of described second sequence.

Concrete, carrying out by described code channel selecting device method that code channel chooses can with reference to the description of following embodiment three or embodiment five, and the embodiment of the present invention wouldn't be set forth at this.

The embodiment of the present invention provides a kind of code channel selecting device, comprising: the first acquiring unit obtains the bit number of the First ray of bandwidth contraction-expansion factor and channel coding; The bit number of the described bandwidth contraction-expansion factor that the first determining unit obtains according to described first acquiring unit, the First ray of described channel coding and the pre-configured first set, determine the first bit number of the second sequence, wherein, described second sequence is carry out the output sequence after rate-matched according to described bandwidth contraction-expansion factor to the First ray of described channel coding; First bit number of described second sequence that second acquisition unit is determined according to described first determining unit, obtain the first information of described second sequence, wherein, the described first information comprises the first spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers; First spreading factor of described each code channel that the second determining unit obtains according to described second acquisition unit and described bandwidth contraction-expansion factor, determine the spreading code that described each code channel is corresponding.Based on the code channel selecting device that the embodiment of the present invention provides, because this device determines the spreading code of each code channel in conjunction with bandwidth contraction-expansion factor, make under bandwidth varying chip zero-setting operation, when using the spreading code of each code channel of E-DPDCH specified in TS25.213 to carry out code channel selection, optional code channel is all within the scope of permission code channel, and then UE can support that E-DCH transmits, improve the uplink efficiency under bandwidth varying chip zero-setting operation.

Embodiment two,

The embodiment of the present invention provides a kind of code channel selecting device 900, and specifically as shown in Figure 9, described device 900 comprises: the first acquiring unit 901, first determining unit 902, second acquisition unit 903, second determining unit 904.

Described first acquiring unit 901, for obtaining the bit number of First ray of bandwidth contraction-expansion factor, the first set and channel coding, wherein, described first set is second subset gathered corresponding with described bandwidth contraction-expansion factor.

Described first determining unit 902, for bit number and described first set of the First ray of the described channel coding according to described first acquiring unit 901 acquisition, determine the bit number of the second sequence, wherein, described second sequence is carry out the output sequence after rate-matched to the First ray of described channel coding.

Described second acquisition unit 903, for the bit number of described second sequence determined according to described first determining unit 902, obtain the first information of described second sequence, wherein, the described first information comprises the spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers.

Described second determining unit 904, for spreading factor and the described bandwidth contraction-expansion factor of the described each code channel according to described second acquisition unit 903 acquisition, determines the spreading code that described each code channel is corresponding.

In a kind of possible implementation, described first acquiring unit 901 specifically for:

In another kind of possible implementation, described first acquiring unit 901 specifically for:

Preferably, described second set comprises:

Further, described second determining unit 704 specifically for:

Preferably, described code channel is numbered:

If SF >=4F, Y=SF/4F;

If SF < is 4F, Y=SF/2F;

Concrete, carrying out by described code channel selecting device method that code channel chooses can with reference to the description of following embodiment four, and the embodiment of the present invention wouldn't be set forth at this.

The embodiment of the present invention provides a kind of code channel selecting device, comprise: the first acquiring unit obtains the bit number of First ray of bandwidth contraction-expansion factor, the first set and channel coding, wherein, described first set is second subset gathered corresponding with described bandwidth contraction-expansion factor; The bit number of the First ray of the described channel coding that the first determining unit obtains according to described first acquiring unit and described first set, determine the bit number of the second sequence, wherein, described second sequence is carry out the output sequence after rate-matched to the First ray of described channel coding; The bit number of described second sequence that second acquisition unit is determined according to described first determining unit, obtain the first information of described second sequence, wherein, the described first information comprises the spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers; The spreading factor of described each code channel that the second determining unit obtains according to described second acquisition unit and described bandwidth contraction-expansion factor, determine the spreading code that described each code channel is corresponding.Based on the code channel selecting device that the embodiment of the present invention provides, because this device is by revising the N defined in agreement TS25.212 according to bandwidth contraction-expansion factor _{e, data}maximum optional set, and the spreading code of each code channel is determined according to the spreading factor of each code channel and bandwidth contraction-expansion factor, make under bandwidth varying chip zero-setting operation, when carrying out code channel selection according to the spreading code of each code channel, optional code channel is all within the scope of permission code channel, and then UE can support that E-DCH transmits, improve the uplink efficiency under bandwidth varying chip zero-setting operation.

Embodiment three,

The embodiment of the present invention provides a kind of code channel choosing method, specifically as shown in Figure 10, comprising:

1001, code channel selecting device obtains the bit number of the First ray of bandwidth contraction-expansion factor and channel coding.

Concrete, in the code channel choosing method that the embodiment of the present invention provides, code channel selecting device not only obtains the bit number of the First ray of channel coding, also obtains the bandwidth contraction-expansion factor F in narrow-band filtering process.

It should be noted that, " first " in described First ray and " second " in following second sequence are all without any special implication, only refer to two different sequences, wherein, described First ray is the output sequence after channel coding, described second sequence be to described channel coding after output sequence carry out the output sequence after rate-matched.

1002, code channel selecting device is according to the bit number of the First ray of described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, determine the first bit number of the second sequence, wherein, described second sequence is carry out the output sequence after rate-matched according to described bandwidth contraction-expansion factor to the First ray of described channel coding.

Concrete, in the embodiment of the present invention, code channel selecting device is after the bit number of First ray obtaining bandwidth contraction-expansion factor and channel coding, by the bit number of the First ray according to described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, determine the first bit information of the second sequence, this process can be expressed as follows with f (*):

N _{e, data}=f (F × N _e, other parameter) and function (3)

Wherein, f (*) expression determines N according to * _{e, data}process, according to F and N _ethe N obtained _{e, data}represent the first bit information of the second sequence, N _erepresent the bit number of transmission block after channel coding, be also the bit number of First ray, F represents bandwidth contraction-expansion factor, and the definition of other parameter and function (2) is identical, repeats no more herein.

It should be noted that, the SET0 comprised in other parameter in function (3) is the first pre-configured set, and this first set is the N defined in agreement TS25.212 _{e, data}the subset of complete or collected works.

It should be noted that, in the first bit number of the second sequence in the embodiment of the present invention, " first " is without any special implication, is only the second bit number in order to be different from the second following sequence.According to the first bit number N of the second sequence that function (3) obtains _{e, data}the not actual length of described second sequence, but a pilot process amount, and the second bit number of the second sequence is the true bit number of described second sequence, wherein, the first bit number/bandwidth contraction-expansion factor of the second bit number=the second sequence of described second sequence.

And according to the code channel choosing method that the embodiment of the present invention provides, the rate matching procedure g (*) that function (1) represents should revise as follows:

Output sequence=g (list entries; N _{e, data}/ F, other parameter) function (4)

It should be noted that, compared to the scheme of prior art, the embodiment of the present invention is determining N _{e, data}process in, be only by original input parameter N _ebe revised as F × N _e, multiplexing greatly existing cataloged procedure, especially rate matching procedure.

1003, code channel selecting device is according to the first bit number of described second sequence, obtain the first information of described second sequence, wherein, the described first information comprises the first spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers.

Concrete, as mentioned above, determine N _{e, data}process nature on also determine the spreading factor SF of modulation system (BPSK, 4PAM or 8PAM), physical channel code channel number P (1,2 or 4), each code channel simultaneously _p(2,4 ..., 2 ^k..., 256), therefore code channel selecting device can according to the first bit number of described second sequence, obtain the first information of described second sequence, this first information can comprise the first spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers.

Certainly, the first information of the second sequence that described code channel selecting device obtains can also be other, and the physical channel code channel number that the modulation system of such as described second sequence, described second sequence pair are answered, the embodiment of the present invention does not do concrete restriction to this.

Exemplary, if the N of the jth determined in step 1002 transmission block _{e, data}, i.e. N _{e, data, j}=1920=N ₄then the first information of the second sequence that a jth transmission block of code channel selecting device acquisition is corresponding can comprise: the physical channel code channel number that the modulation system of described second sequence is BPSK modulation system, described second sequence pair is answered is 1, and the first spreading factor of code channel is 4.

1004, code channel selecting device is according to the first spreading factor of described each code channel and described bandwidth contraction-expansion factor, determines the spreading code that described each code channel is corresponding.

Concrete, in the embodiment of the present invention, at first bit number of described code channel selecting device according to described second sequence, after obtaining the first spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers, by according to the first spreading factor of described each code channel and described bandwidth contraction-expansion factor, determine the spreading code that described each code channel is corresponding specifically to realize in the following way:

Code channel selecting device, according to the first spreading factor of described each code channel and described bandwidth contraction-expansion factor, determines the spreading code that described each code channel is corresponding, and wherein, described spreading code is numbered by spreading factor and code channel and determined.

Described spreading factor is the first spreading factor of described each code channel and the product of described bandwidth contraction-expansion factor;

Described code channel is numbered:

If SF ' >=4, Y=SF '/4; If SF ' < 4, Y=SF '/2;

That is, when carrying out physical channel and mapping, the spreading factor SF that P code channel is corresponding _p' × F substitutes, and code channel numbering is constant, SF _p' N for determining in step 1002 _{e, data}the spreading factor of corresponding P code channel.

It should be noted that, described spreading code is the code word generated by walsh sequence, and concrete create-rule has a detailed description in the 4.3.1.1 of 3GPP agreement TS25.213, and spreading code can with the code tree definition shown on the left of such as Fig. 2 or Fig. 3, and rule is as follows:

C _ch,1,0＝1

[\begin{matrix} C_{ch, 2,0} \\ C_{ch, 2,1} \end{matrix}] = [\begin{matrix} C_{ch, 1,0} & C_{ch, 1,0} \\ C_{ch, 1,0} & {- C}_{ch, 1,0} \end{matrix}] = [\begin{matrix} 1 & 1 \\ 1 & - 1 \end{matrix}]

[\begin{matrix} C_{{ch, 2}^{(n + 1)}, 0} \\ C_{{ch, 2}^{(n + 1)}, 1} \\ C_{{ch, 2}^{(n + 1)}, 2} \\ C_{{ch, 2}^{(n + 1)}, 3} \\ . \\ . \\ C_{{ch, 2}^{(n + 1)}, 2^{(n + 1)} - 2} \\ C_{{ch, 2}^{(n + 1)}, 2^{(n + 1)} - 1} \end{matrix}] = [\begin{matrix} C_{{ch, 2}^{n}, 0} & C_{{ch, 2}^{n}, 0} \\ C_{{ch, 2}^{n}, 0} & {- C}_{{ch, 2}^{n}, 0} \\ C_{{ch, 2}^{n}, 1} & C_{{ch, 2}^{n}, 1} \\ C_{{ch, 2}^{n}, 1} & {- C}_{{ch, 2}^{n}, 1} \\ . & . \\ . & . \\ C_{{ch, 2}^{n}, 2^{n} - 1} & C_{{ch, 2}^{n}, 2^{n} - 1} \\ C_{{ch, 2}^{n}, 2^{n} - 1} & {- C}_{{ch, 2}^{n}, 2^{n} - 1} \end{matrix}]

Here the code channel assignment table of a kind of E-DPDCH is provided as shown in Table 2:

Table two E-DPDCH code channel assigns

Exemplary, suppose F=2, in prior art, if F=2, then work as N _max-dpdchwhen=0, { 2 × SF2,2 × SF2+2 × SF4} is by unavailable; In the embodiment of the present invention, be the code channel of 2 for the first spreading factor, spreading code is C _{ch, 2F, 1}=C _{ch, 4,1}, the analysis of composition graphs 3 is known, and the code channel that this spreading code is corresponding still can be used under bandwidth varying chip zero-setting operation, and if then F=2, then work as N _max-dpdchwhen=0, { 2 × SF2,2 × SF2+2 × SF4} can use; In like manner known, if F=2, work as N _max-dpdchwhen=1, all combinations are also all available; When N=4, work as N _max-dpdchwhen=0 or 1, all combinations are also all available.

The embodiment of the present invention provides a kind of code channel choosing method, in the method, code channel selecting device not only obtains the bit number of the First ray of channel coding, also obtain bandwidth contraction-expansion factor, and according to described bandwidth contraction-expansion factor, the bit number of the First ray of described channel coding and the pre-configured first set, jointly determine the first bit number of the second sequence, according to described first bit number, obtain the first information of described second sequence, the described first information comprises the first spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers, finally according to the first spreading factor and the described bandwidth contraction-expansion factor of described each code channel, jointly determine the spreading code that described each code channel is corresponding.Based on the such scheme that the embodiment of the present invention provides, because determine the spreading code of each code channel in the present invention in conjunction with bandwidth contraction-expansion factor, make under bandwidth varying chip zero-setting operation, when using the spreading code of each code channel of E-DPDCH specified in TS25.213 to carry out code channel selection, optional code channel is all within the scope of permission code channel, and then UE can support that E-DCH transmits, improve the uplink efficiency under bandwidth varying chip zero-setting operation.

Embodiment four,

The embodiment of the present invention provides a kind of code channel choosing method, specifically as shown in figure 11, comprising:

1101, code channel selecting device obtains the bit number of First ray of bandwidth contraction-expansion factor, the first set and channel coding, and wherein, described first set is second subset gathered corresponding with described bandwidth contraction-expansion factor.

It should be noted that, the first set obtained in the embodiment of the present invention is second subset gathered corresponding with described bandwidth contraction-expansion factor, this second set may be pre-configured code channel complete or collected works, also may be a subset of code channel complete or collected works, the embodiment of the present invention does not do concrete restriction to this, suppose that pre-configured code channel complete or collected works are the 3rd set, 3rd set is not identical with the code channel set that TS25.212 specifies because the 3rd gather in comprise corresponding with bandwidth contraction-expansion factor second and gather.

Exemplary, if bandwidth contraction-expansion factor F=2, the 3rd set can be { N ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, N ₄, 2 × N ₄, 2 × N ₄+ 2 × N ₈, 2 × M ₄+ 2 × M ₈, 2 × L ₄+ 2 × L ₈, wherein, comprise corresponding with bandwidth contraction-expansion factor 2 second in the 3rd set and gather { N ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, N ₄, 2 × N ₄, 2 × N ₄+ 2 × N ₈, 2 × M ₄+ 2 × M ₈, 2 × L ₄+ 2 × L ₈, now the second set and the 3rd is gathered identical, and the first set can be configured to an optional subset of this second set;

If described bandwidth contraction-expansion factor F=4, the 3rd set can be { N ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, 2 × N ₈, 2 × N ₈+ 2 × N ₁₆, 2 × M ₈+ 2 × M ₁₆, 2 × L ₈+ 2 × L ₁₆, wherein, comprise corresponding with bandwidth contraction-expansion factor 4 second in the 3rd set and gather { N ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, 2 × N ₈, 2 × N ₈+ 2 × N ₁₆, 2 × M ₈+ 2 × M ₁₆, 2 × L ₈+ 2 × L ₁₆, now the second set and the 3rd is gathered identical, and the first set can be configured to an optional subset of this second set;

If bandwidth contraction-expansion factor F=2, the 3rd set can also be { N ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, N ₄, 2 × N ₄, 2 × N ₄+ 2 × N ₈, 2 × M ₄+ 2 × M ₈, 2 × L ₄+ 2 × L ₈, N ₈, 2 × N ₈, 2 × N ₈+ 2 × N ₁₆, 2 × M ₈+ 2 × M ₁₆, 2 × L ₈+ 2 × L ₁₆, 2 × N ₂, 2 × N ₂+ 2 × N ₄, 2 × M ₂+ 2 × M ₄, 2 × L ₂+ 2 × L ₄, wherein, comprise corresponding with bandwidth contraction-expansion factor 2 second in the 3rd set and gather { N ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, N ₄, 2 × N ₄, 2 × N ₄+ 2 × N ₈, 2 × M ₄+ 2 × M ₈, 2 × L ₄+ 2 × L ₈, now, the second set is a subset of the 3rd set, and the first set can be configured to an optional subset of this second set;

If bandwidth contraction-expansion factor F=4, the 3rd set can also be { N ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, N ₄, 2 × N ₄, 2 × N ₄+ 2 × N ₈, 2 × M ₄+ 2 × M ₈, 2 × L ₄+ 2 × L ₈, N ₈, 2 × N ₈, 2 × N ₈+ 2 × N ₁₆, 2 × M ₈+ 2 × M ₁₆, 2 × L ₈+ 2 × L ₁₆, 2 × N ₂, 2 × N ₂+ 2 × N ₄, 2 × M ₂+ 2 × M ₄, 2 × L ₂+ 2 × L ₄, wherein, comprise corresponding with bandwidth contraction-expansion factor 4 second in the 3rd set and gather { N ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, 2 × N ₈, 2 × N ₈+ 2 × N ₁₆, 2 × M ₈+ 2 × M ₁₆, 2 × L ₈+ 2 × L ₁₆, now, the second set is a subset of the 3rd set, and the first set can be configured to an optional subset of this second set.

Certainly, for different bandwidth contraction-expansion factors, with bandwidth contraction-expansion factor corresponding second gather may not be identical, and the first set obtained is the subset of the second set, therefore the first set obtained may not be identical, and the embodiment of the present invention does not do concrete restriction to this.

Concrete, in the embodiment of the present invention, the first set that code channel selecting device obtains can be directly configuration, and can obtain according to bandwidth contraction-expansion factor, the embodiment of the present invention does not do concrete restriction, that is: yet

Described acquisition first is gathered, and comprising:

According to described bandwidth contraction-expansion factor and the first pre-configured corresponding relation, obtain described first set, wherein, in described first corresponding relation, comprise described bandwidth contraction-expansion factor and the described first one-to-one relationship gathered.

Exemplary, suppose pre-configured the first mapping table as shown in Table 3 in code channel selecting device:

Table three

Bandwidth contraction-expansion factor	First set
		1	2×N ₂,2×N ₂+2×N ₄
2	N ₄，2×N ₄，2×N ₄+2×N ₈
		4	N ₈，2×N ₈，2×N ₈+2×N ₁₆

If the bandwidth contraction-expansion factor that then code channel selecting device obtains is 2, then can according to table three, obtaining the first set is { N ₄, 2 × N ₄, 2 × N ₄+ 2 × N ₈.

It should be noted that, the corresponding relation shown in table three is only one of them example, and the concrete value of certainly described first set can be other combinations, and the embodiment of the present invention does not do concrete restriction to this.

In another kind of possible implementation, described acquisition first is gathered, and comprising:

It should be noted that, the present invention is only the exemplary method providing two kinds of possible acquisitions first and gather, and certainly, also may there is the method for other possible acquisition first set, the embodiment of the present invention does not do concrete restriction to this.

The first set provided from the embodiment of the present invention, when F=2, maximum rate 2 × L that UMTS supports ₄+ 2 × L ₈for supported maximum rate 2 × N during F=2 under bandwidth varying chip zero-setting operation in prior art ₄9/2 times, therefore use the first set in the embodiment of the present invention, can ensure, under the prerequisite supporting E-DCH transmission, to improve transfer rate.

1102, code channel selecting device is according to the bit number of the First ray of described channel coding and described first set, determine the bit number of the second sequence, wherein, described second sequence is carry out the output sequence after rate-matched to the First ray of described channel coding.

Concrete, in the embodiment of the present invention, the bit number that code channel selecting device can be gathered according to the bit number of the First ray of described channel coding and described first, associative function (2) determines described second sequence.Wherein, the SET0 that other parameter in function (2) comprises is no longer the N defined in agreement TS25.212 _{e, data}a subset of complete or collected works, but the subset that corresponding with bandwidth contraction-expansion factor second gathers.

Exemplary, as described in step 601, if F=2, SET0 can be { N ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, N ₄, 2 × N ₄, 2 × N ₄+ 2 × N ₈, 2 × M ₄+ 2 × M ₈, 2 × L ₄+ 2 × L ₈a subset;

If F=4, SET0 can be { N ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, 2 × N ₈, 2 × N ₈+ 2 × N ₁₆, 2 × M ₈+ 2 × M ₁₆, 2 × L ₈+ 2 × L ₁₆a subset.

1103, code channel selecting device is according to the bit number of described second sequence, obtains the first information of the second sequence, and wherein, the described first information comprises the spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers.

Concrete, as mentioned above, determine N _{e, data}process nature on also determine the spreading factor SF of modulation system (BPSK, 4PAM or 8PAM), physical channel code channel number P (1,2 or 4), each code channel simultaneously _p(2,4 ..., 2 ^k..., 256), therefore code channel selecting device can according to the bit number of described second sequence, obtain the first information of described second sequence, this first information can comprise the spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers.

Exemplary, if the N of the jth determined in step 1102 transmission block _{e, data}, i.e. N _{e, data, j}=1920=N ₄then the first information of the second sequence that a jth transmission block of code channel selecting device acquisition is corresponding can comprise: the physical channel code channel number that the modulation system of described second sequence is BPSK modulation system, described second sequence pair is answered is 1, and the spreading factor of code channel is 4.

1104, code channel selecting device is according to the spreading factor of described each code channel and described bandwidth contraction-expansion factor, determines the spreading code that described each code channel is corresponding.

Concrete, in the embodiment of the present invention, code channel selecting device is according to the bit number of described second sequence, after obtaining the spreading factor of each code channel at least one physical channel code channel that the second sequence pair answers, by according to the spreading factor of described each code channel and described bandwidth contraction-expansion factor, determine the spreading code that described each code channel is corresponding specifically to realize in the following way:

According to spreading factor and the described bandwidth contraction-expansion factor of described each code channel, determine the spreading code that described each code channel is corresponding, wherein, described spreading code is numbered by described spreading factor and code channel and is determined;

Described code channel is numbered:

If SF >=4F, Y=SF/ (4F); If SF < is 4F, Y=SF/ (2F);

Associated description about spreading code can the description of reference example one step 504, and the embodiment of the present invention does not repeat them here.

Here the code channel assignment table of a kind of E-DPDCH is provided as shown in Table 4:

Table four E-DPDCH code channel assigns

According to the second set { N during the above-mentioned F=2 provided ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, N ₄, 2 × N ₄, 2 × N ₄+ 2 × N ₈, 2 × M ₄+ 2 × M ₈, 2 × L ₄+ 2 × L ₈, known in conjunction with the rule analysis of bandwidth varying chip zero-setting operation, work as N _max-dpdchwhen=0 or 1, all combinations are all available.In like manner, according to the second set { N during the above-mentioned F=4 provided ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, 2 × N ₈, 2 × N ₈+ 2 × N ₁₆, 2 × M ₈+ 2 × M ₁₆, 2 × L ₈+ 2 × L ₁₆, known in conjunction with the rule analysis of bandwidth varying chip zero-setting operation, work as N _max-dpdchwhen=0 or 1, all combinations are all available.

Exemplary, suppose F=4, N _{e, data}=2 × N ₈, then in 2 code channels comprising of the second sequence, the spreading factor of each code channel is 8, and 2 code channels are respectively as the E-DPDCH in table four ₁and E-DPDCH ₂, E-DPDCH ₁corresponding spread spectrum codes C _{ch, SF, SF/2F}=C _{ch, 8,1}; E-DPDCH ₂corresponding spread spectrum codes C _{ch, 2F, 1}=C _{ch, 8,1}; The analysis of composition graphs 4 is known, E-DPDCH ₁corresponding spread spectrum codes C _{ch, 8,1}and E-DPDCH ₂corresponding spread spectrum codes C _{ch, 8,1}all available.

The embodiment of the present invention provides a kind of code channel choosing method, in the method, code channel selecting device not only obtains the bit number of the First ray of bandwidth contraction-expansion factor and channel coding, also obtain the first set, this first set is second subset gathered corresponding with described bandwidth contraction-expansion factor, and then gather according to the bit number and described first of the First ray of described channel coding, determine the bit number of described second sequence, according to the bit number of described second sequence, obtain the first information of described second sequence, wherein, the described first information comprises the spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers, finally according to spreading factor and the described bandwidth contraction-expansion factor of described each code channel, determine the spreading code that described each code channel is corresponding.Based on the such scheme that the embodiment of the present invention provides, by revising the N defined in agreement TS25.212 according to bandwidth contraction-expansion factor _{e, data}maximum optional set, and the spreading code of each code channel is determined according to the spreading factor of each code channel and bandwidth contraction-expansion factor, make under bandwidth varying chip zero-setting operation, when carrying out code channel selection according to the spreading code of each code channel, optional code channel is all within the scope of permission code channel, and then UE can support that E-DCH transmits, improve the uplink efficiency under bandwidth varying chip zero-setting operation.

Embodiment five,

The embodiment of the present invention provides a kind of code channel choosing method, specifically as shown in figure 12, comprising:

1201, code channel selecting device code channel selecting device obtains the bit number of the First ray of bandwidth contraction-expansion factor and channel coding.

1202, code channel selecting device is according to the bit number of the First ray of described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, determine the first bit number of the second sequence, wherein, described second sequence is carry out the output sequence after rate-matched according to described bandwidth contraction-expansion factor to the First ray of described channel coding.

Concrete, code channel selecting device is according to the bit number of the First ray of described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, determine that the process of the first bit number of the second sequence can the description of reference example three step 1002, the embodiment of the present invention does not repeat them here.

1203, code channel selecting device judges whether the first bit number of described second sequence is less than the first pre-determined threshold, and wherein, the product of the spreading factor that described first pre-determined threshold is corresponding and described bandwidth contraction-expansion factor is not more than 256.

Concrete, in embodiment three, when transmitting block length and being very little, the N chosen _{e, data}may be N ₂₅₆, corresponding first spreading factor is 256, and according to the method for embodiment three, carrying out physical channel mapping, its final code channel number will be C _{ch, 256 × F, 64}, its spreading factor is 256 × F, and this may make troubles in processes.Therefore in the embodiment of the present invention, code channel selecting device also judges the first bit number N of described second sequence _{e, data}whether be less than the first pre-determined threshold T1, the product of the spreading factor that wherein T1 is corresponding and described bandwidth contraction-expansion factor is not more than 256.

If the first bit number of described second sequence is less than described first pre-determined threshold, perform step 1204;

If the first bit number of described second sequence is not less than described first pre-determined threshold, perform step 1205.

If the first bit number of 1204 described second sequences is less than described first pre-determined threshold, the first bit number of described second sequence is updated to described first pre-determined threshold by code channel selecting device.

Concrete, if N _{e, data}< T1, then make N _{e, data}=T1, the first bit number by described second sequence is updated to described first pre-determined threshold.

Exemplary, suppose T1=120=N ₆₄, N _{e, data}=60=N ₁₂₈, due to 60 < 120, therefore, now need to make N _{e, data}=120=N ₆₄.

It should be noted that, as implied above, determine N _{e, data}process nature on also determine the spreading factor SF of modulation system (BPSK, 4PAM or 8PAM), physical channel code channel number P (1,2 or 4), each code channel simultaneously _p(2,4 ..., 2 ^k..., 256), therefore while the first bit number of the second sequence is updated to described first pre-determined threshold, N _{e, data}some corresponding information are also updated to some information corresponding to described first pre-determined threshold, such as, connect above-mentioned example, making N _{e, data}=120=N ₆₄time, N _{e, data}=60=N ₁₂₈it is corresponding that { the physical channel code channel number that the modulation system of the second sequence is BPSK, the second sequence pair is answered is the spreading factor of the first code channel that the 1, second sequence pair is answered is that 128} is updated to N simultaneously _{e, data}=120=N ₆₄it is corresponding that { the physical channel code channel number that the modulation system of the second sequence is BPSK, the second sequence pair is answered is the spreading factor of the first code channel that the 1, second sequence pair is answered is 64}.

1205, code channel selecting device is according to the first bit number of described second sequence, obtain the first information of described second sequence, wherein, the described first information comprises the first spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers.

Concrete, code channel selecting device is according to the first bit number of described second sequence, and the method obtaining the first information of described second sequence can the description of reference example three step 503, and the embodiment of the present invention does not repeat them here.

1206, code channel selecting device is according to the first spreading factor of described each code channel and described bandwidth contraction-expansion factor, determines the spreading code that described each code channel is corresponding.

Concrete, code channel selecting device is according to stating the first spreading factor of each code channel and described bandwidth contraction-expansion factor, and determine that the method for the spreading code that described each code channel is corresponding can the description of reference example three step 1004, the embodiment of the present invention does not repeat them here.

Optionally, the embodiment of the present invention also provides a kind of code channel choosing method, specifically as shown in figure 13, comprising:

1301, code channel selecting device obtains the bit number of the First ray of bandwidth contraction-expansion factor and channel coding.

1302, code channel selecting device judges whether the bit number of described First ray is less than the second pre-determined threshold, and wherein, the spreading factor determined according to described bandwidth contraction-expansion factor and described second pre-determined threshold and the product of described bandwidth contraction-expansion factor are not more than 256.

Concrete, in embodiment three, when transmitting block length and being very little, the N chosen _{e, data}may be N ₂₅₆, corresponding first spreading factor is 256, and according to the method for embodiment three, carrying out physical channel mapping, its final code channel number will be C _{ch, 256}× _{f, 64}, its spreading factor is 256 × F, and this may make troubles in processes.Therefore in the embodiment of the present invention, code channel selecting device, after the bit number of First ray obtaining channel coding, also judges the bit number N of described First ray _ewhether be less than the second pre-determined threshold T2, wherein, carry out the N chosen according to T2 _{e, data}the product of the spreading factor that=f (F × T2, other parameter) is corresponding and described bandwidth contraction-expansion factor is not more than 256.

If the bit number of described First ray is less than described second pre-determined threshold, perform step 1303;

If the bit number of described First ray is not less than described second pre-determined threshold, perform step 1304.

If the bit number of 1303 described First rays is less than described second pre-determined threshold, the bit number of described First ray is updated to described second pre-determined threshold by code channel selecting device.

Concrete, if N _e< T2, in order to ensure the bit number N according to described First ray _eand the product of the spreading factor determined of described bandwidth contraction-expansion factor F and described bandwidth contraction-expansion factor is not more than 256, now needs to make N _e=T2, now N _{e, data}=f (F × T2, other parameter).

1304, code channel selecting device is according to the bit number of the First ray of described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, determine the first bit number of the second sequence, wherein, described second sequence is carry out the output sequence after rate-matched according to described bandwidth contraction-expansion factor to the First ray of described channel coding.

It should be noted that, at N _eduring < T2, code channel selecting device makes N _e=T2, in this case, code channel selecting device is according to the bit number N of the First ray of described bandwidth contraction-expansion factor, described channel coding _eand the first pre-configured set, the first bit number N of the second sequence determined _{e, data}can increase.

Exemplary, suppose N _e=1000, according to the N that function (3) obtains _{e, data}=1920=N ₄if T2=1500, due to 1000 < 1500, therefore needs to make N _e=1500, now according to the N that function (3) obtains _{e, data}=31340=N ₂, the first bit number of the second sequence can increase.

1305, code channel selecting device is according to the first bit number of described second sequence, obtain the first information of described second sequence, wherein, the described first information comprises the first spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers.

Concrete, code channel selecting device is according to the first bit number of described second sequence, and the method obtaining the first information of described second sequence can the description of reference example three step 1003, and the embodiment of the present invention does not repeat them here.

1306, code channel selecting device is according to the first spreading factor of described each code channel and described bandwidth contraction-expansion factor, determines the spreading code that described each code channel is corresponding.

Optionally, the embodiment of the present invention also provides a kind of code channel choosing method, specifically as shown in figure 14, comprising:

1401, code channel selecting device obtains the bit number of the First ray of bandwidth contraction-expansion factor and channel coding.

1402, code channel selecting device is according to the bit number of the First ray of described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, determine the first bit number of the second sequence, wherein, described second sequence is carry out the output sequence after rate-matched according to described bandwidth contraction-expansion factor to the First ray of described channel coding.

1403, code channel selecting device is according to described bandwidth contraction-expansion factor, obtain the first pre-determined threshold, wherein, if described bandwidth contraction-expansion factor equals 2, it is bit number corresponding when being not less than 2 that described first pre-determined threshold is configured to spreading factor, if described bandwidth contraction-expansion factor is greater than 2, described first pre-determined threshold is configured to bit number corresponding when spreading factor is greater than 2.

Concrete, in the embodiment of the present invention, code channel selecting device according to described bandwidth contraction-expansion factor, can obtain the first pre-determined threshold, specifically can realize in the following way:

Prestored the corresponding relation of bandwidth contraction-expansion factor and the first pre-determined threshold in code channel selecting device, code channel selecting device, after acquisition bandwidth contraction-expansion factor, according to described bandwidth contraction-expansion factor and described corresponding relation, can obtain the first pre-determined threshold.

Certainly, described code channel selecting device also directly may obtain pre-configured described first pre-determined threshold, and the embodiment of the present invention does not do concrete restriction to this.

Wherein, according to the difference of bandwidth contraction-expansion factor, the configuration requirement of the first pre-determined threshold is also different, if described bandwidth contraction-expansion factor equals 2, it is bit number corresponding when being not less than 2 that described first pre-determined threshold is configured to spreading factor, if described bandwidth contraction-expansion factor is greater than 2, described first pre-determined threshold is configured to bit number corresponding when spreading factor is greater than 2.

Exemplary, suppose F=2, the first pre-determined threshold can be configured to bit number corresponding when spreading factor is 2; Suppose that F > 2, first pre-determined threshold can be configured to bit number corresponding when spreading factor is 256.

1404, code channel selecting device judges whether the first bit number of described second sequence is less than described first pre-determined threshold.

Concrete, code channel selecting device judges whether the first bit number of described second sequence is less than described first pre-determined threshold, if the first bit number of described second sequence is less than described first pre-determined threshold, performs step 1405;

If the first bit number of described second sequence is not less than described first pre-determined threshold, perform step 1408.

If the first bit number of 1405 described second sequences is less than described first pre-determined threshold, code channel selecting device, according to the bit number of the First ray of described channel coding and the pre-configured second set, determines the second bit number of the second sequence.

1406, code channel selecting device is according to the second bit number of described second sequence, obtains the second information of described second sequence, and wherein, described second information comprises the spreading factor of each code channel at least one physical code channel that described second sequence pair answers.

1407, code channel selecting device is according to the spreading factor of described each code channel, determines the spreading code that described each code channel is corresponding.

Wherein, step 1405-1407 is after the bit number of the First ray obtaining channel coding in prior art, and determine the method for the spreading code that each code channel is corresponding, the embodiment of the present invention does not repeat them here.

Or optionally, after execution of step 1406, code channel selecting device can according to the spreading factor of described each code channel and bandwidth contraction-expansion factor, and determine the spreading code that described each code channel is corresponding, the embodiment of the present invention does not do concrete restriction to this.

If the first bit number of 1408 described second sequences is not less than described first pre-determined threshold, code channel selecting device is according to the first bit number of described second sequence, obtain the first information of described second sequence, wherein, the described first information comprises the first spreading factor of each code channel at least one physical code channel that described second sequence pair answers.

1409, code channel selecting device is according to the first spreading factor of described each code channel and described bandwidth contraction-expansion factor, determines the spreading code that described each code channel is corresponding.

Wherein, the associated description of step 1408 and step 14014 can distinguish the description of reference example three step 1003 and step 1004, and the embodiment of the present invention does not repeat them here.

It should be noted that, in the embodiment of the present invention, code channel selecting device may according to the magnitude relationship of the first bit number of described second sequence and the first pre-determined threshold, select the method for the spreading code that the different each code channels of determination is corresponding, and then the code channel making the spreading code determined corresponding still can be used under bandwidth varying chip zero-setting operation.

Optionally, the embodiment of the present invention also provides a kind of code channel choosing method, specifically as shown in figure 15, comprising:

1501, code channel selecting device obtains the bit number of the First ray of bandwidth contraction-expansion factor and channel coding.

1502, code channel selecting device is according to described bandwidth contraction-expansion factor, obtains the second pre-determined threshold, wherein, if bandwidth contraction-expansion factor equals 2, gathers the spreading factor determined be not less than 2 according to described second pre-determined threshold and pre-configured first.

Optionally, if bandwidth contraction-expansion factor is greater than 2, gathers according to described second pre-determined threshold and pre-configured first spreading factor determined and be greater than 2.

Concrete, in the embodiment of the present invention, code channel selecting device according to described bandwidth contraction-expansion factor, can obtain the second pre-determined threshold, specifically can realize in the following way:

Prestored the corresponding relation of bandwidth contraction-expansion factor and the second pre-determined threshold in code channel selecting device, code channel selecting device, after acquisition bandwidth contraction-expansion factor, according to described bandwidth contraction-expansion factor and described corresponding relation, can obtain the second pre-determined threshold.

Wherein, according to the difference of bandwidth contraction-expansion factor, the configuration requirement of the second pre-determined threshold is also different, if described bandwidth contraction-expansion factor equals 2, gathers the spreading factor determined be not less than 2 according to described second pre-determined threshold and pre-configured first; If described bandwidth contraction-expansion factor is greater than 2, gathers according to described second pre-determined threshold and pre-configured first spreading factor determined and be greater than 2.

Exemplary, suppose F=2, the second pre-determined threshold can be configured to: gathering according to described second pre-determined threshold and pre-configured first spreading factor determined is 2; Suppose that F > 2, second pre-determined threshold can be configured to: gathering according to described second pre-determined threshold and pre-configured first spreading factor determined is 256.

1503, code channel selecting device judges whether the bit number of described First ray is less than described second pre-determined threshold.

Concrete, code channel selecting device judges whether the bit number of described First ray is less than described second pre-determined threshold, if the bit number of described First ray is less than described second pre-determined threshold, performs step 1504;

If the bit number of described First ray is less than described second pre-determined threshold, perform step 1507.

If the bit number of 1504 described First rays is less than described second pre-determined threshold, code channel selecting device is according to the bit number of the First ray of described channel coding and the pre-configured second set, determine the second bit number of the second sequence, wherein, described second sequence is carry out the output sequence after rate-matched to the First ray of described channel coding.

1505, code channel selecting device is according to the second bit number of described second sequence, obtains the second information of described second sequence, and wherein, described second information comprises the spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers.

1506, code channel selecting device is according to the spreading factor of described each code channel, determines the spreading code that described each code channel is corresponding.

Wherein, step 1504-1506 is after the bit number of the First ray obtaining channel coding in prior art, and determine the method for the spreading code that each code channel is corresponding, the embodiment of the present invention does not repeat them here.

Or optionally, after execution of step 1505, code channel selecting device can according to the spreading factor of described each code channel and bandwidth contraction-expansion factor, and determine the spreading code that described each code channel is corresponding, the embodiment of the present invention does not do concrete restriction to this.

If 1507 described First ray bit numbers are not less than described second pre-determined threshold, code channel selecting device, according to the bit number of the First ray of described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, determines the first bit number of the second sequence.

1508, code channel selecting device is according to the first bit number of described second sequence, obtains the first information of described second sequence, and wherein, the described first information comprises the first spreading factor of each code channel at least one physical code channel that described second sequence pair answers.

1509, code channel selecting device is according to the first spreading factor of described each code channel and described bandwidth contraction-expansion factor, determines the spreading code that described each code channel is corresponding.

Wherein, the associated description of step 1507-1509 can distinguish the description of reference example one step 1002-1004, and the embodiment of the present invention does not repeat them here.

It should be noted that, in the embodiment of the present invention, code channel selecting device may according to the magnitude relationship of the bit number of described First ray and the second pre-determined threshold, select the method for the spreading code that the different each code channels of determination is corresponding, and then the code channel making the spreading code determined corresponding still can be used under bandwidth varying chip zero-setting operation.

Further, the described first information can also comprise:

The physical channel code channel number that the modulation system of described second sequence, described second sequence pair are answered.

Concrete, the physical channel code channel number that as described in step 1002, the described first information can also comprise the modulation system of described second sequence, described second sequence pair is answered, the embodiment of the present invention does not repeat them here.

Described method also comprises:

According to the first spreading factor and the described bandwidth contraction-expansion factor of described modulation system, described each code channel, determine the bit number of described each code channel.

Concrete, as shown in Figure 2, in the process of existing HSUPA code multiplexing, need to carry out physical channel segmentation, described physical channel segmentation refers to and the second sequence after rate-matched is divided into p section, wherein p is the physical channel code channel number that described second sequence pair is answered, and the bit number that P code channel is corresponding is U1 (P), spreading factor SF that can be corresponding with this code channel according to modulation system _pcalculate, concrete as shown in formula (1):

U1 (P)=every sign bit number * (every Transmission Time Interval (TransmissionTimeInterval, TTI) number of chips/SF _p) formula (1)

Wherein, " every TTI number of chips " is relevant with TTI length, such as, as TTI=2ms, and every TTI number of chips=7680, " every sign bit number " is relevant with modulation system:

When modulation system is BPSK, every sign bit number=1;

When modulation system is 4PAM, every sign bit number=2;

When modulation system is 8PAM, every sign bit number=3.

And in the embodiment of the present invention, because introducing bandwidth contraction-expansion factor, and the spreading factor of each code channel is the first spreading factor of described each code channel and the product of described bandwidth contraction-expansion factor, therefore described the first spreading factor according to described modulation system, described each code channel and described bandwidth contraction-expansion factor, determine the bit number of described each code channel, comprising:

According to the first spreading factor of described modulation system, described each code channel, described bandwidth contraction-expansion factor and following formula (2), determine the bit number of described each code channel:

U (P)=every sign bit number × (every Transmission Time Interval TTI number of chips/(the first spreading factor × bandwidth contraction-expansion factor of P code channel)) formula (2)

Namely when carrying out physical channel segmentation, the bit number of P code channel

U(P)＝U1(P)/F

Wherein, U (P) represents the bit number of P code channel, and F represents bandwidth contraction-expansion factor, the bit number of P code channel of U1 (P) for obtaining in prior art.

The embodiment of the present invention provides a kind of code channel choosing method, in the method, code channel selecting device not only obtains the bit number of the First ray of channel coding, also obtain bandwidth contraction-expansion factor, and according to described bandwidth contraction-expansion factor, the second set that the bit number of the First ray of described channel coding and pre-configured first comprises in gathering, jointly determine the first bit number of the second sequence, according to described first bit number, obtain the first information of described second sequence, the described first information comprises the first spreading factor of each code channel at least one physical channel code channel that described second sequence pair answers, finally according to the first spreading factor and the described bandwidth contraction-expansion factor of described each code channel, jointly determine the spreading code that described each code channel is corresponding.Based on the such scheme that the embodiment of the present invention provides, because determine the spreading code of each code channel in the present invention in conjunction with bandwidth contraction-expansion factor, make under bandwidth varying chip zero-setting operation, when using the spreading code of each code channel of E-DPDCH specified in TS25.213 to carry out code channel selection, optional code channel is all within the scope of permission code channel, and then UE can support that E-DCH transmits, improve the uplink efficiency under bandwidth varying chip zero-setting operation.

Embodiment six,

The embodiment of the present invention provides a kind of code channel selecting device 1600, as shown in figure 16, comprises processor 1601, transceiver 1602, memory 1603 and communication bus 1604.

Described communication bus 1604, for described processor 1601, the connection communication between described transceiver 1602, described holder 1603.

Described transceiver 1602, for described device 1600 and outside communication.

Described processor 1601, for calling the program code 16031 of the storage in described memory 1603, performs following operation:

Concrete, described the first spreading factor according to described each code channel and described bandwidth contraction-expansion factor, determine to comprise the spreading code that described each code channel is corresponding:

Preferably, described code channel is numbered:

If SF ' >=4, Y=SF '/4;

If SF ' < 4, Y=SF '/2;

Optionally, at described the first bit number according to described second sequence, before obtaining the first information of described second sequence, also comprise:

Optionally, after the bit number of the First ray of described acquisition bandwidth contraction-expansion factor and channel coding, the bit number of the described First ray according to described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, before determining the first bit number of the second sequence, also comprise:

Concrete, the described first information also comprises:

Further, described method also comprises:

Further, described the first spreading factor according to described modulation system, described each code channel and described bandwidth contraction-expansion factor, determine the bit number of described each code channel, comprising:

Further, described method also comprises:

Concrete, carrying out by described code channel selecting device method that code channel chooses can the description of reference example three or embodiment five, and the embodiment of the present invention does not repeat them here.

Based on the code channel selecting device that the embodiment of the present invention provides, because this device determines the spreading code of each code channel in conjunction with bandwidth contraction-expansion factor, make under bandwidth varying chip zero-setting operation, when using the spreading code of each code channel of E-DPDCH specified in TS25.213 to carry out code channel selection, optional code channel is all within the scope of permission code channel, and then UE can support that E-DCH transmits, improve the uplink efficiency under bandwidth varying chip zero-setting operation.

Embodiment seven,

The embodiment of the present invention provides a kind of code channel selecting device 1700, as shown in figure 17, comprises processor 1701, transceiver 1702, memory 1703 and communication bus 1704.

Described communication bus 1704, for described processor 1701, the connection communication between described transceiver 1702, described holder 1703.

Described transceiver 1702, for described device 1700 and outside communication.

Described processor 1701, for calling the program code 17031 of the storage in described memory 1703, performs following operation:

In a kind of possible implementation, described acquisition first is gathered, and comprising:

Preferably, described second set comprises:

If described bandwidth contraction-expansion factor is 2, described second set is { N ₂₅₆, N ₁₂₈, N ₆₄, N ₃₂, N ₁₆, N ₈, N ₄, 2 × N ₄, 2 × N ₄+ 2 × N ₈, 2 × M ₄+ 2 × M ₈, 2 × L ₄+ 2 × L ₈; Or,

Further, the described spreading factor according to described each code channel and described bandwidth contraction-expansion factor, determine to comprise the spreading code that described each code channel is corresponding:

Preferably, described code channel is numbered:

If SF >=4F, Y=SF/ (4F);

If SF < is 4F, Y=SF/ (2F);

Concrete, carrying out by described code channel selecting device method that code channel chooses can the description of reference example four, and the embodiment of the present invention does not repeat them here.

Based on the code channel selecting device that the embodiment of the present invention provides, because this device is by revising the N defined in agreement TS25.212 according to bandwidth contraction-expansion factor _{e, data}maximum optional set, and the spreading code of each code channel is determined according to the spreading factor of each code channel and bandwidth contraction-expansion factor, make under bandwidth varying chip zero-setting operation, when carrying out code channel selection according to the spreading code of each code channel, optional code channel is all within the scope of permission code channel, and then UE can support that E-DCH transmits, improve the uplink efficiency under bandwidth varying chip zero-setting operation.

Those skilled in the art can be well understood to, for convenience and simplicity of description, the device of foregoing description, only be illustrated with the division of above-mentioned each functional module, in practical application, can distribute as required and by above-mentioned functions and be completed by different functional modules, the internal structure by device is divided into different functional modules, to complete all or part of function described above.The specific works process of the system of foregoing description, device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.

In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described module or unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the INDIRECT COUPLING of device or unit or communication connection can be electrical, machinery or other form.

The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed on multiple NE.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.

If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) or processor (processor) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only storage (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc or CD etc. various can be program code stored medium.

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.

Claims

1. a code channel selecting device, is characterized in that, described device comprises: the first acquiring unit, the first determining unit, second acquisition unit, the second determining unit;

2. device according to claim 1, is characterized in that, described second determining unit specifically for:

3. device according to claim 2, is characterized in that, described code channel is numbered:

If SF ' >=4, Y=SF '/4;

If SF ' < 4, Y=SF '/2;

4. the device according to any one of claim 1-3, is characterized in that, described device also comprises: judging unit, updating block;

5. the device according to any one of claim 1-3, is characterized in that, described device also comprises: the 3rd acquiring unit, judging unit, the 3rd determining unit, the 4th acquiring unit.4th determining unit, performance element;

6. device according to claim 5, is characterized in that, if described bandwidth contraction-expansion factor is greater than 2, described first pre-determined threshold is configured to bit number corresponding when spreading factor is greater than 2.

7. the device according to any one of claim 1-3, is characterized in that, described device also comprises: judging unit, updating block;

8. the method according to any one of claim 1-3, is characterized in that, described device also comprises: the 3rd acquiring unit, judging unit, the 3rd determining unit, the 4th acquiring unit.4th determining unit, performance element;

9. device according to claim 8, is characterized in that, if described bandwidth contraction-expansion factor is greater than 2, gathers the spreading factor determined be greater than 2 according to described second pre-determined threshold and pre-configured first.

10. the device according to any one of claim 1-9, is characterized in that, the described first information also comprises:

11. devices according to claim 10, is characterized in that, described device also comprises: the 5th determining unit, segmenting unit;

12. devices according to claim 11, is characterized in that, described 5th determining unit specifically for:

13. devices according to any one of claim 1-12, it is characterized in that, the second bit number of described second sequence equals the business of the first bit number divided by described bandwidth contraction-expansion factor of described second sequence.

14. 1 kinds of code channel selecting devices, is characterized in that, described device comprises: the first acquiring unit, the first determining unit, second acquisition unit, the second determining unit;

15. devices according to claim 14, is characterized in that, described first acquiring unit specifically for:

Or,

Described first acquiring unit specifically for:

16. devices according to claims 14 or 15, is characterized in that, described second set comprises:

17. devices according to claim 16, is characterized in that, described second determining unit specifically for:

18. devices according to claim 17, is characterized in that, described code channel is numbered:

If SF >=4F, Y=SF/ (4F);

If SF < is 4F, Y=SF/ (2F);

19. 1 kinds of code channel choosing methods, is characterized in that, described method comprises:

20. methods according to claim 19, is characterized in that, described the first spreading factor according to described each code channel and described bandwidth contraction-expansion factor, determine to comprise the spreading code that described each code channel is corresponding:

21. methods according to claim 20, is characterized in that, described code channel is numbered:

If SF ' >=4, Y=SF '/4;

If SF ' < 4, Y=SF '/2;

22. methods according to any one of claim 19-21, is characterized in that, at described the first bit number according to described second sequence, before obtaining the first information of described second sequence, also comprise:

23. methods according to any one of claim 19-21, is characterized in that, at described the first bit number according to described second sequence, before obtaining the first information of described second sequence, also comprise:

24. methods according to claim 23, is characterized in that, if described bandwidth contraction-expansion factor is greater than 2, described first pre-determined threshold is configured to bit number corresponding when spreading factor is greater than 2.

25. methods according to any one of claim 19-21, it is characterized in that, after the bit number of the First ray of described acquisition bandwidth contraction-expansion factor and channel coding, the bit number of the described First ray according to described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, before determining the first bit number of the second sequence, also comprise:

26. methods according to any one of claim 19-21, it is characterized in that, after the bit number of the First ray of described acquisition bandwidth contraction-expansion factor and channel coding, the bit number of the described First ray according to described bandwidth contraction-expansion factor, described channel coding and the pre-configured first set, before determining the first bit number of the second sequence, also comprise:

27. methods according to claim 26, is characterized in that, if described bandwidth contraction-expansion factor is greater than 2, gathers the spreading factor determined be greater than 2 according to described second pre-determined threshold and pre-configured first.

28. methods according to any one of claim 19-27, it is characterized in that, the described first information also comprises:

29. methods according to claim 28, is characterized in that, described method also comprises:

30. methods according to claim 29, is characterized in that, described the first spreading factor according to described modulation system, described each code channel and described bandwidth contraction-expansion factor, determine the bit number of described each code channel, comprising:

31. methods according to any one of claim 19-30, it is characterized in that, described method also comprises:

32. 1 kinds of code channel choosing methods, is characterized in that, described method comprises:

33. methods according to claim 32, is characterized in that, described acquisition first is gathered, and comprising:

Or,

Described acquisition first is gathered, and comprising:

34. methods according to claim 32 or 33, is characterized in that, described second set comprises:

35. methods according to claim 34, is characterized in that, the described spreading factor according to described each code channel and described bandwidth contraction-expansion factor, determine to comprise the spreading code that described each code channel is corresponding:

36. methods according to claim 35, is characterized in that, described code channel is numbered:

If SF >=4F, Y=SF/ (4F);

If SF < is 4F, Y=SF/ (2F);