CN102957525A - PHICH (physical hybrid ARQ indicator channel) configuration method and device - Google Patents

Abstract

The invention discloses PHICH (physical hybrid ARQ indicator channel) configuration method and device and solves the problem of transmission reliability in PHICH from out-of-band mobile relaying or higher-version receiving ends in high-speed mobile environments. By decreasing the number of multiplexing receiving ends in one PHICH group, transmitted power of downlink feedback from each receiving end is increased, accurate receiving of PHICH is guaranteed for the out-of-band relaying or higher-version receiving ends is guaranteed, transmitting efficiency of a whole communication system is improved, and the problem of transmission reliability in PHICH from the out-of-band mobile relaying or higher-version receiving ends in high-speed mobile environments is well solved. The method and device are well applicable to out-of-band relaying or higher-version receiving ends.

Description

A kind of collocation method of physical hybrid automatic repeat request indicator channel and device

Technical field

The present invention relates to moving communicating field, relate in particular to the middle-and-high-ranking Long Term Evolution of 3GPP (Long Term Evolution Advanced, LTE-A) collocation method and the device of a kind of physical hybrid automatic repeat request indicator channel (Physical Hybrid Automatic Repeat Request Indicator Channel, PHICH) in the system.

Background technology

Long Term Evolution (Long Term Evolution, LTE) system, senior Long Term Evolution (LTE-Advanced, LTE-A) system and IMT-Advanced (International Mobile Telecommunication Advanced, IMT-Advanced) system all is with OFDM (Orthogonal Frequency Division Multiplexing, OFDM) technology is the basis, and ofdm system is the data mode of time-frequency bidimensional.1 subframe (subframe) is comprised of 2 time slots (slot), and during normal cyclic prefix (Normal Cyclic Prefix, Normal CP), each slot is comprised of 7 OFDM symbols; During expansion CP (Extended CP), each slot is comprised of 6 OFDM symbols.

For convenience of description, the following describes term and definition in the several LTE/LTE-A system:

1. Resource Unit (Resource Element, RE): minimum time/frequency source block occupies 1 subcarrier on 1 OFDM symbol.

2. resource unit group (Resource Element Group, REG): according to the difference of reference symbol position on each OFDM symbol, 1 REG can be comprised of 4 or 6 RE.

3. control information unit (Control Channel Element, CCE): by 36 RE, 9 REG form.

4. Physical Resource Block (Physical Resource Block, PRB): being continuous 1 time slot on the time-domain, is continuous 12 subcarriers on the frequency domain.

5. Physical Resource Block is to (PRB pair): being continuous 1 subframe on the time-domain, is continuous 12 subcarriers on the frequency domain.

In the LTE/LTE-A system, the base station will be Physical Uplink Shared Channel (the Physical Uplink Shared Channel of each UE, PUSCH) asynchronous mixed automatic retransmission request (the Hybrid Automatic Repeat request of transmission 1 bit, HARQ) descending affirmation/non-affirmation (Acknowledge/Negative Acknowledge, ACK/NACK) feedback information, this HARQ ACK/NACK is carried on the Physical HARQ Indicator Channel PHICH.

Its basic principle is: the base station end, the base station (is also referred to as evolved Node B, Enhanced Node B, eNB) 8 HARQ ACK/NACK are carried out respectively 3 repetitions, BPSK modulation, spread spectrum and many antenna processing after, be multiplexed on 1 PHICH group (PHICH group), finally be mapped on 3 REG.Wherein, so-called spread spectrum multiply by one group of orthogonal sequence exactly, and for the situation of Normal CP, spreading factor is 4 (totally 8 groups of orthogonal sequences); For the situation of Extended CP, spreading factor is 2 (totally 2 groups of orthogonal sequences), and adopts I/Q multiplexing, and the HARQ ACK/NACK feedback information that therefore 1 PHICH group can multiplexing 8 UE has namely carried at most 8 PHICH in 1 PHICH group.

Which PHICH group UE end, UE at first will determine its PHICH resource in, and then determine it is which PHICH in this PHICH group.That is to say, the PHICH resource of each UE is unique definite by call number (PHICH group index) and the PHICH call number in the PHICH group of PHICH group, and wherein the PHICH call number is determined by one group of orthogonal sequence call number (orthogonal sequence index) is unique.Specifically determined by following formula:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

Wherein:

Be total number of PHICH group, concrete numerical value is provided by high level;

Call number for the PHICH group; I _{PRB_RA}Lowest order for the shared PRB call number of the PUSCH of UE;

Be the call number of PHICH in certain PHICH group, corresponding one group of orthogonal sequence; n _DMRSValue in uplink authorization information, provided by 3 fixing bit informations;

Be spreading factor; I _PHICHFor configuring I when PUSCH occurs on subframe 4 or 90 time except TDD _PHICHBe 1, all the other situations are O.

Introducing relay nodes (Relay Node, RN) in the mobile communication system, link between base station (eNB) and the RN is called repeated link (Backhaul Link, be also referred to as Un Link), link between the UE under RN and its coverage is called access link (Access Link, be also referred to as Uu Link), the link (Direct Link) that is referred to as to direct transfer of the link between the UE under eNB and its coverage.Concerning eNB, RN just is equivalent to a UE; Concerning UE, RN just is equivalent to eNB.

Via node can be divided into two types, i.e. via node and the outer via node of band in the band.

For being with interior via node (in-band RN), Un Link uses identical frequency band with Uu Link, and as shown in Figure 1, Un Link and Uu Link all use f ₁Transmitting-receiving for fear of RN self is disturbed, and RN can not carry out the operation of sending and receiving simultaneously on same frequency resource.When RN sends Downlink Control Information for its subordinate UE, just can not receive the Downlink Control Information from eNB.Therefore, when downlink transfer, RN at first sends Downlink Control Information for its subordinate's UE at front 1 or 2 OFDM symbol, then (interval gap as shown in Figure 2) carries out from being transmitted into the switching of reception in a period of time scope, after switching is finished, in the data of the OFDM of back symbol reception from eNB, down control channel (Relay Physical Downlink Control Channel comprising relaying itself, R-PDCCH) and Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH), as shown in Figure 2, namely the R-PDCCH that sends to RN of eNB is carried on Physical Resource Block or Physical Resource Block to upper.

For being with outer via node (out-band RN), Un Link and Uu Link take diverse two frequency ranges, and as shown in Figure 3, Un Link uses f ₁, Uu Link uses f ₂Therefore, the outer RN of band can be at f ₁In the time of upper transmission (reception) at f ₂Upper reception (transmission) can not produce interference each other.

In the fixing in-band RN of Rel-10, consider that backhaul link channel condition is relatively good, the loading error occurring rate is extremely low, complexity and the unnecessary wasting of resources, the therefore final in-band RN introducing PHICH that does not have for fixing that the while also brings for fear of introducing PHICH.

In 3GPP discussed, mobile relay (Mobile Relay, MR) became hot issue gradually.If it is outer that mobile relay is band, the outer mobile relay of band just can As-received stand in the information that sends on any OFDM symbol of every subframe so.Therefore be easy to expect, can reuse the corresponding downlink feedback information of uplink that PHICH comes the outer mobile relay of carrying belt.

Yet, when mobile relay was in the High-speed Circumstance, it is unprecedented soaring that channel variation will certainly cause the error rate of professional transmission fast, retransmits probability and become large, therefore very necessary for mobile relay introducing PHICH is used for supporting non-self-adapting to retransmit, reduce simultaneously the expense of control signal.At first will solve this moment is exactly the transmission reliability problem that how to guarantee PHICH itself.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of collocation method and device of physical hybrid automatic repeat request indicator channel.Be used for to solve under the high-speed mobile scene the outer mobile relay of band or the transmission reliability problem of the PHICH of highest version receiving terminal more.

For achieving the above object, technical scheme of the present invention is achieved in that

Technical scheme 1, a kind of collocation method of physical hybrid automatic repeat request indicator channel comprises:

Network side utilizes high-level signaling to be receiving terminal configuration PHICH group index number or PHICH group index number and PHICH call number; Or network side utilizes high-level signaling to be total number of receiving terminal configuration PHICH group

Total N with PHICH in the PHICH group _PHICH

Receiving terminal obtains corresponding PHICH resource according to the configuration of network side.

Technical scheme 2, based on technical scheme 1, further, network side utilizes high-level signaling to be specially for receiving terminal configuration PHICH group index number or PHICH group index number and PHICH call number:

It is the call number of the PHICH group at PHICH resource place corresponding to each receiving terminal configuration that network side utilizes high-level signaling, the PHICH call number in the PHICH that network side is corresponding with each receiving terminal agreement organizes; Or

Network side utilizes high-level signaling directly to configure call number and the PHICH call number of the PHICH group at PHICH resource place corresponding to receiving terminal for each receiving terminal.

Technical scheme 3, based on technical scheme 2, further, when 1 PHICH group only configures to 1 receiving terminal use, network side utilizes high-level signaling to arrange for the receiving terminal configuration or with receiving terminal, the call number of the PHICH group at the PHICH resource place that each receiving terminal configuration is corresponding.

Technical scheme 4, based on technical scheme 3, further, when 1 transmission block TB of uplink, receiving terminal uses 1 orthogonal sequence corresponding to fixing PHICH call number to carry out despreading in the PHICH group of high-level signaling for its configuration.

Technical scheme 5, based on technical scheme 3, when 2 TB of uplink, receiving terminal uses 2 orthogonal sequences corresponding to fixing PHICH call number to carry out despreading in the PHICH group of high-level signaling for its configuration, or 1 orthogonal sequence corresponding to fixing PHICH call number of unified use carries out despreading.

Technical scheme 6, based on technical scheme 2, when 1 PHICH assembly is put when using to the individual receiving terminal of N (1＜N＜=4), it is 1 identical PHICH group index of the individual receiving terminal indication of described N (1＜N＜=4) number and PHICH call number that network side utilizes high-level signaling.

Technical scheme 7, based on technical scheme 6, it is that the receiving terminal of 1 TB of uplink in the described N receiving terminal configures respectively 1 PHICH call number that network side utilizes high-level signaling, receiving terminal carries out despreading according to the corresponding orthogonal sequence of configuration PHICH call number.

Technical scheme 8, based on technical scheme 6, it is that the receiving terminal of 2 TB of uplink in the described N receiving terminal configures respectively 2 different PHICH call numbers or 1 PHICH call number of unified configuration that network side utilizes high-level signaling, and receiving terminal carries out despreading according to the corresponding orthogonal sequence of configuration PHICH call number.

Technical scheme 9, based on technical scheme 5 or 8,1 PHICH call number of described unified configuration refers to: after 2 the descending ACK/NACK information of 2 bits corresponding to up TB are carried out step-by-step and operation (being bundled feedback), only feed back 1 bit ACK/nack message, therefore only need 1 PHICH call number.

Based on technical scheme 2, network side need not to utilize total number of high-level signaling notice PHICH group.

Technical scheme 10 based on technical scheme 1, is total number of receiving terminal configuration PHICH group when network side utilizes high-level signaling Total N with PHICH in the PHICH group _PHICHThe time, receiving terminal calculates the corresponding PHICH group index of PHICH resource corresponding to receiving terminal number and PHICH call number according to following formula:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

Wherein, N _PHICHRepresent multiplexing PHICH number in 1 PHICH group, Call number for the PHICH group; I _{PRB_RA}Lowest order for the shared PRB call number of the PUSCH of UE;

Call number for PHICH in the PHICH group; n _DMRSValue provided by uplink authorization information; I _PHICHFor configuring I when PUSCH occurs on subframe 4 or 90 time except TDD _PHICHBe 1, all the other situations are 0.

Based on the embodiment of the invention, the present invention also proposes a kind of inking device of physical hybrid automatic repeat request indicator channel, and this device comprises:

Configuration module is positioned at network side, and being used for by high-level signaling is receiving terminal configuration PHICH group index number or PHICH group index number and PHICH call number; Or network side utilizes high-level signaling to be total number of receiving terminal configuration PHICH group Total N with PHICH in the PHICH group _PHICH

Acquisition module is positioned at receiving terminal, is used for PHICH resource corresponding to gain of parameter according to the configuration module configuration.

The present invention is by reducing multiplexing reception terminal number in 1 PHICH group, improved the transmitting power of the downstream feedback of each receiving terminal, the outer relaying of band or the more accurate reception of the PHICH of the receiving terminal of highest version have been guaranteed, and then improved the efficiency of transmission of whole communication system, solved well under the high-speed mobile scene the outer mobile relay of band or the transmission reliability problem of the PHICH of highest version receiving terminal more, can be applicable to well with outer relaying or the receiving terminal of highest version more.

Description of drawings

Fig. 1 is for introducing the system architecture figure behind the via node in the band;

Fig. 2 is the frame assumption diagram of the descending Un subframe of via node in the band;

Fig. 3 is the system architecture figure behind the outer via node of introducing band;

Fig. 4 is the flow chart of the collocation method of a kind of physical hybrid automatic repeat request indicator channel provided by the invention.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.

Fig. 4 is the flow chart of the collocation method of a kind of physical hybrid automatic repeat request indicator channel of proposing of the present invention, and the method comprises:

Step S1, network side utilize high-level signaling to be receiving terminal configuration PHICH group index number and PHICH call number, or total number of PHICH group

Total N with PHICH in the PHICH group _PHICH

Step S2, receiving terminal be according to the described PHICH group index of network side configuration number and PHICH call number, or

N _PHICHAnd other relevant parameter, obtain corresponding PHICH resource;

The determining of described PHICH resource is comprised of two parts, i.e. call number and the PHICH call number of PHICH group, and receiving terminal just can find the resource at PHICH place according to these two call numbers, and then obtains its ACK/NACK information.

The pass of PHICH call number and orthogonal sequence ties up in the standard as shown in the table:

Network side described in the present invention can be in the following network element any: base station (eNB), via node (RN), gateway (Gate Way, GW), Mobility Management Entity (Mobility Management Entity, MME), Evolved UTRAN (Evolved Universal Terrestrial Radio Access Network, EUTRAN), operational administrative and safeguard (Operation Administration and Maintenance, OAM) manager etc.Receiving terminal described in the present invention can be the subscriber equipment more than 11 with outer mobile relay and 3GPP protocol version.

Following examples illustrate the collocation method of the physical hybrid automatic repeat request indicator channel that the books invention provides as example take base station and the outer mobile relay of band, but be understandable that, persons skilled in the art can not need to pay network side network element and the receiving terminal that creative work is applied to other type.

Embodiment 1:

This embodiment only configures situation about using to the outer mobile relay of 1 band for 1 PHICH group.Among this embodiment under the base station range, the outer mobile relay number of band that is in simultaneously linking status is 3, is labeled as MR1, MR2 and MR3.1 transmission block TB of MR1 and MR2 uplink (Transport Block), 2 TB of MR3 uplink.

Step 101, base station utilize high-level signaling that PHICH group 0,1 and 2 is configured respectively to MR1, MR2 and MR3, and organize interior PHICH call number and the corresponding relation of each MR with individual MR agreement PHICH;

Base station and each MR appoint in advance mutually, when 1 TB of uplink, and the fixing PHICH index 0 that uses of the PHICH call number in the PHICH group; As 2 TB of uplink and not during bundled feedback, the fixing PHICH index 0 and 1 that uses of the PHICH call number in the PHICH group; When 2 TB of uplink and bundled feedback, the fixing PHICH index 0 that uses of the PHICH call number in the PHICH group.

Step 102, each MR according to the base station configure PHICH group index number and with the PHICH group of base station agreement in the PHICH call number and the corresponding relation of each MR obtain corresponding PHICH resource, receive;

MR1 receives PHICH group 0, and carries out despreading with PHICH index 0 corresponding orthogonal sequence, finally obtains the descending ACK/NACK feedback information of 1 bit.

MR2 receives PHICH group 1, and carries out despreading with PHICH index 0 corresponding orthogonal sequence, finally obtains the descending ACK/NACK feedback information of 1 bit.

MR3 receives PHICH group 2, and carries out respectively despreading with PHICH index 0 and 1 corresponding orthogonal sequence respectively, finally obtains the descending ACK/NACK feedback information of 2 bits.(for 2 TB of uplink and the situation of bundled feedback not).

MR3 receives PHICH group 2, and carries out respectively despreading with PHICH index 0 corresponding orthogonal sequence, finally obtains the descending ACK/NACK feedback information of 1 bit.(for the situation of 2 TB of uplink and bundled feedback).

Need to prove, among this embodiment, network side need not to utilize total number of broadcast notice PHICH group, thereby has saved Internet resources.

Embodiment 2:

This embodiment only configures situation about using to the outer mobile relay of 2 bands for 1 PHICH group.Among this embodiment under the base station range, the outer mobile relay number of band that is in simultaneously linking status is 4, is labeled as MR1, MR2, MR3 and MR4.1 TB of MR1 and MR2 uplink, 2 TB of MR3 and MR4 uplink.The PHICH of MR1 and MR3 is multiplexing in 1 PHICH group, and the PHICH of MR2 and MR4 is multiplexing in 1 PHICH group.

It is each MR configuration PHICH group index number and PHICH call number that step 201, base station utilize high-level signaling;

The base station utilizes high-level signaling that PHICH group 0 is configured to MR1 and MR3, and PHICH group1 is configured to MR2 and MR4.

In PHICH group 0, the base station to MR1, configures PHICH index 3 configurations to MR3 (not bundled feedback) with PHICH index6 and 7.

In PHICH group 1, the base station to MR2, configures PHICH index 0 configuration to MR4 (bundled feedback) with PHICH index5.

Step 202, each MR obtain corresponding PHICH resource according to the PHICH group index of base station configuration number and PHICH call number, receive;

MR1 receives PHICH group 0, and carries out despreading with PHICH index 3 corresponding orthogonal sequences, finally obtains the descending ACK/NACK feedback information of 1 bit.

MR2 receives PHICH group 1, and carries out despreading with PHICH index 0 corresponding orthogonal sequence, finally obtains the descending ACK/NACK feedback information of 1 bit.

MR3 receives PHICH group 0, and carries out respectively despreading with PHICH index 6 and 7 corresponding orthogonal sequences respectively, finally obtains the descending ACK/NACK feedback information of 2 bits.(mode of not binding)

MR4 receives PHICH group 1, and carries out respectively despreading with PHICH index 5 corresponding orthogonal sequences, finally obtains the descending ACK/NACK feedback information of 1 bit.(mode of binding)

Need to prove, among this embodiment, network side need not to utilize total number of broadcast notice PHICH group.

Embodiment 3:

This embodiment only configures situation about using to the outer mobile relay of 4 bands for 1 PHICH group.Among this embodiment under the base station range, the outer mobile relay number of band that is in simultaneously linking status is 8, is labeled as MR1, MR2 ..., MR8, each MR uplink is 2 TB.The base station is mapped to its downstream feedback be divided into two groups of these 8 MR respectively on the corresponding PHICH group.

It is each MR configuration PHICH group index number and PHICH call number that step 301, base station at first utilize high-level signaling;

The base station to MR1, MR3, MR6 and MR8, configures PHICH group 0 configuration to MR2, MR4, MR5 and MR7 with PHICH group1.

In PHICH group 0, the base station configures PHICH index 0 and 1 to MR1, and PHICHindex 2 and 3 is configured to MR3, and PHICH index 4 and 5 is configured to MR6, and PHICH index6 and 7 is configured to MR8 (not bundled feedback).

In PHICH group 1, the base station to MR2, configures PHICH index3 PHICH index 1 configuration to MR4, PHICH index 4 is configured to MR5, and PHICH index 7 is configured to MR7 (bundled feedback).

Certainly in 1 PHICH group, also can existing bundled feedback, not bundled feedback is arranged again.

Step 302, each MR obtain corresponding PHICH resource according to the PHICH group index of base station configuration number and PHICH call number, receive;

MR1 receives PHICH group 0, and carries out despreading with PHICH index 0 and 1 corresponding orthogonal sequence, finally obtains the descending ACK/NACK feedback information of 2 bits.

MR2 receives PHICH group 1, and carries out despreading with PHICH index 1 corresponding orthogonal sequence, finally obtains the descending ACK/NACK feedback information of 1 bit.

The like, for saving space, repeat no more herein.

Need to prove, among this embodiment, network side need not to utilize total number of broadcast notice PHICH group.

Embodiment 4:

This embodiment calculates the situation of PHICH resource according to the optimization formula for terminal.Among this embodiment under the base station range, the outer mobile relay number of band that is in simultaneously linking status is 3, wherein, and 1 TB of MR1 and MR2 uplink, 2 TB of MR3 uplink.

It is total number of each MR configuration PHICH group that step 401, base station utilize high-level signaling

Total N with PHICH in the PHICH group _PHICH

The base station utilizes broadcast to inform each MR, always has 3 groups of PHICH group, namely

And multiplexing 2 PHICH, i.e. N in 1 PHICH group _PHICH=2.Comprised in the uplink scheduling authorization information of base station to the MR1 transmission: I _{PRB_RA}=10, n _DMRS=1; Comprised in the uplink scheduling authorization information of base station to the MR2 transmission: I _{PRB_RA}=14, n _DMRS=5; Comprised in the uplink scheduling authorization information of base station to the MR3 transmission: I _{PRB_RA}=69, n _DMRS=3;

Total number that step 401, each MR organize according to network side configuration PHICH

Total N with PHICH in the PHICH group _PHICHAnd other parameter is (comprising N _PHICH,

I _{PRB_RA},

n _DMRSAnd I _PHICH) jointly calculate the PHICH resource;

MR1: bring the parameters that obtains into formula and calculate, draw:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=(10+1)\mathrm{mod}3=2$

That is, the PHICH resource of MR1 is positioned at PHICH group 2, PHICH index 0 corresponding one group of orthogonal sequence.

MR2: bring the parameters that obtains into formula and calculate, draw:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=(14+5)\mathrm{mod}3=1$

That is, the PHICH resource of MR2 is positioned at PHICH group 1, PHICH index 1 corresponding one group of orthogonal sequence.

MR3: 2 TB of uplink, bring the parameters that obtains into formula and calculate, draw:

The 1st the corresponding PHICH resource of TB:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=(69+3)\mathrm{mod}3=0$

The 2nd the corresponding PHICH resource of TB:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=((69+1)+3)\mathrm{mod}3=1$

The 1st the corresponding PHICH resource of TB that is MR3 is positioned at PHICH group 0, PHICH index 0 corresponding one group of orthogonal sequence; The 2nd the corresponding PHICH resource of TB of MR3 is positioned at PHICH group 1, PHICH index 0 corresponding one group of orthogonal sequence.

Embodiment 5:

This embodiment calculates the situation of PHICH resource according to the optimization formula for receiving terminal.Among this embodiment under the base station range, the outer mobile relay number of band that is in simultaneously linking status is 7, wherein, and 1 TB of MR1, MR3 and MR4 uplink, MR2, MR5, MR6 and 2 TB of MR7 uplink.

It is total number of each MR configuration PHICH group that step 501, base station utilize high-level signaling

Total N with PHICH in the PHICH group _PHICH

The base station utilizes broadcast to inform each MR, always has 5 groups of PHICH group, namely

And multiplexing 4 PHICH, i.e. N in 1 PHICH group _PHICH=4.

Comprised in the uplink scheduling authorization information of base station to the MR1 transmission: I _{PRB_RA}=2, n _DMRS=1;

Comprised in the uplink scheduling authorization information of base station to the MR2 transmission: I _{PRB_RA}=15, n _DMRS=7;

Comprised in the uplink scheduling authorization information of base station to the MR3 transmission: I _{PRB_RA}=35, n _DMRS=0;

Comprised in the uplink scheduling authorization information of base station to the MR4 transmission: I _{PRB_RA}=21, n _DMRS=4;

Comprised in the uplink scheduling authorization information of base station to the MR5 transmission: I _{PRB_RA}=89, n _DMRS=2;

Comprised in the uplink scheduling authorization information of base station to the MR6 transmission: I _{PRB_RA}=51, n _DMRS=3;

Comprised in the uplink scheduling authorization information of base station to the MR7 transmission: I _{PRB_RA}=62, n _DMRS=1;

Total number that step 502, each MR organize according to network side configuration PHICH Total N with PHICH in the PHICH group _PHICHAnd other parameter is (comprising N _PHICH,

I _{PRB_RA},

n _DMRSAnd I _PHICH) jointly calculate the PHICH resource;

MR1: bring the parameters that obtains into formula and calculate, draw:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=(2+1)\mathrm{mod}5=3$

That is, the PHICH resource of MR1 is positioned at PHICH group 3, PHICH index 1 corresponding one group of orthogonal sequence.

MR2: 2 TB of uplink, bring the parameters that obtains into formula and calculate, draw:

The 1st the corresponding PHICH resource of TB:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=(15+7)\mathrm{mod}5=2$

The 2nd the corresponding PHICH resource of TB:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=((15+1)+7)\mathrm{mod}5=3$

The 1st the corresponding PHICH resource of TB that is MR2 is positioned at PHICH group 2, PHICHindex 2 corresponding one group of orthogonal sequence; The 2nd the corresponding PHICH resource of TB of MR3 is positioned at PHICH group 3, PHICH index 2 corresponding one group of orthogonal sequence.

MR3: bring the parameters that obtains into formula and calculate, draw:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=(35+0)\mathrm{mod}5=0$

The PHICH resource that is MR3 is positioned at PHICH group 0, PHICH index 3 corresponding one group of orthogonal sequence.

MR4: bring the parameters that obtains into formula and calculate, draw:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=(21+4)\mathrm{mod}5=0$

The PHICH resource that is MR4 is positioned at PHICH group 0, PHICH index 0 corresponding one group of orthogonal sequence.

MR5: 2 TB of uplink, bring the parameters that obtains into formula and calculate, draw:

The 1st the corresponding PHICH resource of TB:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=(89+2)\mathrm{mod}5=1$

The 2nd the corresponding PHICH resource of TB:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=((89+1)+2)\mathrm{mod}5=2$

The 1st the corresponding PHICH resource of TB that is MR5 is positioned at PHICH group 1, PHICHindex 3 corresponding one group of orthogonal sequence; The 2nd the corresponding PHICH resource of TB of MR5 is positioned at PHICH group 2, PHICH index 0 corresponding one group of orthogonal sequence.

MR6: 2 TB of uplink, bring the parameters that obtains into formula and calculate, draw:

The 1st the corresponding PHICH resource of TB:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=(51+3)\mathrm{mod}5=4$

The 2nd the corresponding PHICH resource of TB:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=((51+1)+3)\mathrm{mod}5=0$

The 1st the corresponding PHICH resource of TB that is MR6 is positioned at PHICH group 4, PHICHindex 1 corresponding one group of orthogonal sequence; The 2nd the corresponding PHICH resource of TB of MR6 is positioned at PHICH group 0, PHICH index 1 corresponding one group of orthogonal sequence.

MR7: 2 TB of uplink, bring the parameters that obtains into formula and calculate, draw:

The 1st the corresponding PHICH resource of TB:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=(62+1)\mathrm{mod}5=3$

The 2nd the corresponding PHICH resource of TB:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

$=((62+1)+1)\mathrm{mod}5=4$

The 1st the corresponding PHICH resource of TB that is MR7 is positioned at PHICH group 3, PHICH index 1 corresponding one group of orthogonal sequence; The 2nd the corresponding PHICH resource of TB of MR7 is positioned at PHICH group 4, PHICH index 1 corresponding one group of orthogonal sequence.

Embodiment 6:

Based on above-described embodiment, the present invention also provides a kind of inking device of physical hybrid automatic repeat request indicator channel, and this device comprises:

Configuration module is positioned at network side, and being used for by high-level signaling is receiving terminal configuration PHICH group index number or PHICH group index number and PHICH call number; Or utilize high-level signaling to be total number of receiving terminal configuration PHICH group

Total N with PHICH in the PHICH group _PHICH

Acquisition module is positioned at receiving terminal, is used for PHICH resource corresponding to gain of parameter according to the configuration module configuration.

Preferably, when 1 PHICH group only configures to 1 receiving terminal use, it is the call number of the PHICH group at PHICH resource place corresponding to each receiving terminal configuration that described configuration module utilizes high-level signaling, the PHICH call number in the PHICH that network side is corresponding with each receiving terminal agreement organizes;

Preferably, when 1 PHICH assembly is put when using to the individual receiving terminal of N (1＜N＜=4), it is 1 identical PHICH group index of the individual receiving terminal indication of described N (1＜N＜=4) number and PHICH call number that described configuration module utilizes high-level signaling.

Preferably, utilize high-level signaling to be total number of receiving terminal configuration PHICH group at described configuration module

Total N with PHICH in the PHICH group _PHICHSituation under, described acquisition module calculates the corresponding PHICH group index of PHICH resource corresponding to receiving terminal number and PHICH call number according to following formula:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

Wherein, N _PHICHRepresent multiplexing PHICH number in 1 PHICH group,

Call number for the PHICH group; I _{PRB_RA}Lowest order for the shared PRB call number of the PUSCH of UE;

Call number for PHICH in the PHICH group; n _DMRSValue provided by uplink authorization information; I _PHICHFor configuring I when PUSCH occurs on subframe 4 or 90 time except TDD _PHICHBe 1, all the other situations are 0.

Because described device embodiment realizes based on said method embodiment; so the functional module that this device comprises all is to establish for the steps flow chart among the realization said method embodiment; its function all can directly directly derive from the steps flow chart of said method embodiment; any functional module or performance element that can extract from said method embodiment or derive all should belong within the protection range of apparatus of the present invention embodiment; for saving space, repeat no more herein.

The above is preferred embodiment of the present invention only, is not for limiting protection range of the present invention.

Claims (13)

1. the collocation method of a physical hybrid automatic repeat request indicator channel is characterized in that,

Network side utilizes high-level signaling to be receiving terminal configuration PHICH group index number or PHICH group index number and PHICH call number; Or network side utilizes high-level signaling to be total number of receiving terminal configuration PHICH group

Total N with PHICH in the PHICH group _PHICH

Receiving terminal obtains corresponding PHICH resource according to the configuration of network side.

2. method according to claim 1 is characterized in that, described network side utilizes high-level signaling to be specially for receiving terminal configuration PHICH group index number or PHICH group index number and PHICH call number:

It is the call number of the PHICH group at PHICH resource place corresponding to each receiving terminal configuration that network side utilizes high-level signaling, the PHICH call number in the PHICH that network side is corresponding with each receiving terminal agreement organizes; Or

Network side utilizes high-level signaling directly to configure call number and the PHICH call number of the PHICH group at corresponding PHICH resource place for each receiving terminal.

3. method according to claim 2 is characterized in that,

When 1 PHICH group only configured to 1 receiving terminal use, network side utilized high-level signaling to arrange for the receiving terminal configuration or with receiving terminal, the call number of the PHICH group at the PHICH resource place that each receiving terminal is corresponding.

4. method according to claim 3 is characterized in that, described method also comprises:

When 1 transmission block TB of uplink, receiving terminal uses 1 orthogonal sequence corresponding to fixing PHICH call number to carry out despreading in the PHICH group of high-level signaling for its configuration.

5. method according to claim 3 is characterized in that, described method also comprises:

When 2 TB of uplink, receiving terminal uses 2 orthogonal sequences corresponding to fixing PHICH call number to carry out despreading in the PHICH group of high-level signaling for its configuration, or 1 orthogonal sequence corresponding to fixing PHICH call number of unified use carries out despreading.

6. method according to claim 2 is characterized in that,

When 1 PHICH assembly is put when using to the individual receiving terminal of N (1＜N＜=4), it is 1 identical PHICH group index of the individual receiving terminal indication of described N (1＜N＜=4) number and PHICH call number that network side utilizes high-level signaling.

7. method according to claim 6, it is characterized in that, it is that the receiving terminal of 1 TB of uplink in the described N receiving terminal configures respectively 1 PHICH call number that network side utilizes high-level signaling, and receiving terminal carries out despreading according to the corresponding orthogonal sequence of configuration PHICH call number.

8. method according to claim 6 is characterized in that,

It is that the receiving terminal of 2 TB of uplink in the described N receiving terminal configures respectively 2 different PHICH call numbers or 1 PHICH call number of unified configuration that network side utilizes high-level signaling, and receiving terminal carries out despreading according to the corresponding orthogonal sequence of configuration PHICH call number.

9. according to claim 5 or 8 each described methods, it is characterized in that,

1 PHICH call number of described unified configuration refers to: after 2 the descending ACK/NACK information of 2 bits corresponding to up TB are carried out step-by-step and operated, only feed back 1 bit ACK/nack message.

10. method according to claim 1 is characterized in that, is total number of receiving terminal configuration PHICH group when network side utilizes high-level signaling

Total N with PHICH in the PHICH group _PHICHThe time, receiving terminal calculates the corresponding PHICH group index of PHICH resource corresponding to receiving terminal number and PHICH call number according to following formula:

$n_{\mathrm{PICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

Wherein, N _PHICHRepresent multiplexing PHICH number in 1 PHICH group,

Call number for the PHICH group; I _{PRB_RA}Lowest order for the shared PRB call number of the PUSCH of UE;

Call number for PHICH in the PHICH group; n _DMRSValue provided by uplink authorization information; I _PHICHFor configuring I when PUSCH occurs on subframe 4 or 90 time except TDD _PHICHBe 1, all the other situations are 0.

11. the inking device of a physical hybrid automatic repeat request indicator channel is characterized in that, comprising:

Configuration module is positioned at network side, and being used for by high-level signaling is receiving terminal configuration PHICH group index number or PHICH group index number and PHICH call number; Or network side utilizes high-level signaling to be total number of receiving terminal configuration PHICH group

Total N with PHICH in the PHICH group _PHICH

Acquisition module is positioned at receiving terminal, is used for PHICH resource corresponding to gain of parameter according to the configuration module configuration.

12. device according to claim 11 is characterized in that,

When 1 PHICH group only configures to 1 receiving terminal use, it is the call number of the PHICH group at PHICH resource place corresponding to each receiving terminal configuration that described configuration module utilizes high-level signaling, the PHICH call number in the PHICH that network side is corresponding with each receiving terminal agreement organizes;

When 1 PHICH assembly is put when using to the individual receiving terminal of N (1＜N＜=4), it is 1 identical PHICH group index of the individual receiving terminal indication of described N (1＜N＜=4) number and PHICH call number that described configuration module utilizes high-level signaling.

13. device according to claim 11 is characterized in that, described configuration module utilizes high-level signaling to be total number of receiving terminal configuration PHICH group Total N with PHICH in the PHICH group _PHICHSituation under, described acquisition module calculates the corresponding PHICH group index of PHICH resource corresponding to receiving terminal number and PHICH call number according to following formula:

$n_{\mathrm{PICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}$

Wherein, N _PHICHRepresent multiplexing PHICH number in 1 PHICH group, Call number for the PHICH group; I _{PRB_RA}Lowest order for the shared PRB call number of the PUSCH of UE; Call number for PHICH in the PHICH group; n _DMRSValue provided by uplink authorization information; I _PHICHFor configuring I when PUSCH occurs on subframe 4 or 90 time except TDD _PHICHBe 1, all the other situations are 0.

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