CN101355810A - Method and apparatus for mapping resource of up physical control channel - Google Patents

Abstract

The present invention discloses a method and a device for the resource mapping of an uplink physical control channel. The method comprises that in the state where a logical resource block index of the uplink physical control channel is greater than or equal to, or equal to a second threshold, in an even time slot of a wireless frame, the even logic resource block indexes of the uplink physical control channel are mapped, in a sequence from small to large, to the physical resource block index (see formula 1 at right side) which is successively increased from the beginning; the odd logical resource block indexes of the uplink physical control channel are mapped, in a sequence from small to large, to the physical resource block index (see formula 2 above) which is successively decreased from the beginning; in an odd time slot of the wireless frame, the even logic resource block indexes are mapped, in a sequence from small to large, to the physical resource block index (see formula 3 above) which is successively decreased; the odd logical resource block indexes are mapped, in a sequence from small to large, to the physical resource block index (see formula 4 above) which is successively increased.

Description

The method for mapping resource of ascending physical signal control channel and device

Technical field

The present invention relates to the communications field, and especially, design a kind of method for mapping resource and device of ascending physical signal control channel.

Background technology

(Long Term Evolution, LTE) (TimeDivision Duplex, TDD) in the pattern, its frame structure that adopts (be called the second class frame structure again, that is, frame structure type 2) as shown in Figure 1 for system's time division duplex at Long Term Evolution.

As shown in Figure 1, in this frame structure, (307200Ts, radio frames 1ms=30720Ts) is divided into two fields to a 10ms, the long 5ms of each field (153600Ts).The subframe that it is 1ms that each field comprises 5 length.

The effect of each subframe is as shown in table 1, and in table 1, the D representative is used for the descending sub frame of transmission of downlink signal; The U representative is used to transmit the sub-frame of uplink of upward signal; In addition, upstream or downstream subframe is divided into the time slot of 2 0.5ms again; S represents special subframe, comprises three special time slots, that is, descending pilot frequency time slot (Downlink Pilot Time Slot, DwPTS), protection at interval (Guard Period, GP) and uplink pilot time slot (UplinkPilot Time Slot, UpPTS).In real system, the uplink and downlink formulatory indices can be notified to terminal (for example, mobile phone) by broadcast.

In the description of this paper, the even number time slot of radio frames can be equal to first time slot of a subframe, and the odd number time slot of radio frames can be equal to second time slot of a subframe.

Table 1

(Frequency Division Duplex, FDD) in the pattern, the frame structure of employing (be called first kind frame structure again, that is, frame structure type1) as shown in Figure 2 in the Frequency Division Duplexing (FDD) of LTE system.

As shown in Figure 2, the radio frames of a 10ms is divided into the time slot of 20 0.5ms, and 2 adjacent time slots are formed the subframe that length is 1ms, that is, subframe i is made up of time slot 2i and 2i+1, wherein, i=0,1 ..., 9.And under fdd mode, 10 subframes all are used for the transmission of upstream or downstream signal, distinguish by different frequency bands between the uplink and downlink.

LTE system physical accidental access channel (Physical Random Access Channel, abbreviate PRACH as, also can be referred to as and insert chance (random accessopportunity) or random access resource (random access resource) at random.The corresponding random access guiding (random access preamble) of accidental channel, leading by Cyclic Prefix (Cyclic Prefix, CP) and Sequence two parts form, as shown in Figure 3, different leading forms (preamble format) mean different CP and/or Sequence length.The preamble format kind of LTE system TDD mode support at present is as shown in table 2.

Leading form	T CP	T SEQ
			0	3168·T s	24576·T s
1	21024·T s	24576·T s
			2	6240·T s	2·24576·T s
3	21024·T s	2·24576·T s
			4 (only the frame structure type 2)	448·T s	4096·T s

Table 2

In the leading form shown in the table 2, preamble format 0～3 can transmit in common sub-frame of uplink, and preamble format 4 can transmit in UpPTS, and concrete transmission means is as follows: preamble format 0 transmits in a common sub-frame of uplink; Preambleformat 1,2 transmits in two common sub-frame of uplink; Preamble format 3 transmits in three common sub-frame of uplink; Preamble format 4 transmits (original position sends on the 5158Ts position in advance at the place, end of UpPTS) in UpPTS.

Resource allocation in the LTE system is with Resource Block (Resource Block, RB) be unit, a RB takies 12 resource element (Resource Element on frequency domain, abbreviate RE as, wherein, a RE takies a SC-FDMA symbol on time domain), a RB takies a time slot on time domain, promptly, RB on time domain, take 7 or 6 single-carrier frequency division multiple access (Single Carrier-Frequency Division MultipleAccess, SC-FDMA) symbol that is to say, a RB is at general cyclic prefix (Normal Cyclic Prefix, Normal CP) under the condition, takies 7 SC-FDMA symbols, at extended cyclic prefix (Extended Cyclic Prefix, Extended CP) under the condition, takies 6 SC-FDMA symbols.

Fig. 4 is the schematic diagram according to the Resource Block of correlation technique and resource units relation, as shown in Figure 4, and under the condition of common CP, if the RB of definition up-link bandwidth correspondence adds up to N _RB ^UL, then the index of RB is 0,1 ..., N _RB ^UL-1.

At frequency domain, a random access guiding accounts for 6 pairing bandwidth of RB, i.e. 72 RE, and the bandwidth of each RE is 15kHz.The PRACH channel that time-domain position is identical is distinguished by frequency domain.

On frequency domain, common sub-frame of uplink can transmit PRACH channel, Physical Shared Channel (Physical uplink shared channel, PUSCH), Physical Uplink Control Channel (Physical uplink control channel, PUCCH), (Soundingreference signal SRS) waits physical channel/signal to detection reference signal.UpPTS bag can the transmitting SRS signal and leading form be 4 PRACH channel.

The PUCCH channel format can be divided into two big classes, and totally 6 kinds: the first kind comprises 3 kinds of forms, i.e. format 1,1a, 1b, and second class comprises 3 kinds of forms, i.e. format 2,2a, 2b.First kind PUCCH is used to transmit SR (dispatch request, scheduling request) and correctly reply (Acknowledgement, ACK)/wrong responses (NegativeAcknowledgement, NACK) signaling, wherein, format 1 is used to transmit the ACK/NACK that ACK/NACK, format 1b that SR, format1a be used to transmit single codeword stream are used to transmit two streams of code words.A plurality of first kind PUCCH channels (or being called the PUCCH resource) are multiplexing in a RB by the mode that sign indicating number divides.

On the other hand, the second class PUCCH is mainly used in transmission channel quality indication (ChannelQuality Indicator, CQI), wherein, 2 transmission of format CQI, format 2a is used for transmitting simultaneously the ACK/NACK of CQI and single codeword stream, and format 2b is used for transmitting simultaneously the ACK/NACK of CQI and two streams of code words.A plurality of second class PUCCH channels also are that the mode of dividing by sign indicating number is multiplexing in a RB.The quantity of first kind PUCCH shared RB number and down control channel unit in a time slot (Control ChannelElement, CCE) relevant, be dynamic change; The second class PUCCH shared RB number in a time slot is notified to all UE in the sub-district by broadcast channel, is semi-static preparation.In addition, for fear of the waste of sign indicating number resource, the LTE system has also defined mixing RB, simultaneously the multiplexing first kind and the second class PUCCH channel.Whether exist mixing RB to prepare in the system, and in a time slot, have one to mix RB at most.Carrying out the PUCCH resource before the physics RB mapping, at first the PUCCH resource is mapped on the logic RB index, and then logic RB index is mapped on the physics RB of each time slot.First kind PUCCH is shown below to the mapping method of logic RB index:

Wherein, n _PUCCH ⁽¹⁾Be PUCCH resource index, N _RB ⁽²⁾Be the shared RB number of the second class PUCCH channel, N _Cs ⁽¹⁾The cyclic shift amount that first kind PUCCH is distributed in mixing RB, Δ _Shift ^PUCCHBe the step length of cyclic shift of first kind PUCCH, N _Sc ^RBBe the quantity of a RB at the shared RE of frequency domain.The second class PUCCH resource to the mapping method of logic index is N wherein _PUCCH ⁽²⁾It is the second class PUCCH resource index.Above-mentioned mapping method makes the logic index of first kind PUCCH less than the index of the second class PUCCH.When mixing RB, the logic index that mixes RB is between the first kind PUCCH logic index and the second class PUCCH logic index.Wherein, m is PUCCH logic RB index.

Index at PUCCH logic RB aspect the mapping of physics RB index, present method is as follows:

At first time slot (that is, the even number time slot) of a subframe, the logic RB index of even number is mapped on the physics RB index with from small to large order, physics RB index increases progressively continuously since 0; The logic RB index of odd number is mapped on the physics RB index with from small to large order, and physics RB index is from N _RB ^UL-1 beginning is successively decreased continuously;

At second time slot (that is, the odd number time slot) of a subframe, the logic RB index of even number is mapped on the physics RB index with from small to large order, physics RB index is from N _RB ^UL-1 beginning is successively decreased continuously; The logic RB index of odd number is mapped to since the 0 physics RB index that increases progressively continuously successively with from small to large order.

Ying She physical resource index as shown in Figure 5 by this method.

Yet the mapping method that this PUCCH channel logic RB indexes physics RB index is not considered the frequency domain position of PRACH channel, therefore, can cause the interference of PRACH channel and PUCCH channel.At present, do not propose as yet can solve because PUCCH channel logic RB indexes the PRACH channel that mapping caused of physics RB index and the interference of PUCCH interchannel.

Summary of the invention

Consider in the correlation technique that the PRACH channel that mapping caused and the PUCCH interchannel that index physics RB index owing to PUCCH channel logic RB exist the problem of disturbing to make the present invention, for this reason, main purpose of the present invention is to provide a kind of resource mapping scheme of ascending physical signal control channel.

According to embodiments of the invention, a kind of method for mapping resource of ascending physical signal control channel is provided, be used for the pairing number of resource blocks of up-link bandwidth more than or equal to or greater than the situation of first threshold value under the logical resource block index of ascending physical signal control channel is mapped to the Physical Resource Block index.

Method for mapping resource according to ascending physical signal control channel of the present invention comprises:

The logical resource block index of ascending physical signal control channel more than or equal to or situation greater than second threshold value under, in the even number time slot of a radio frames, with the even number logical resource block index of ascending physical signal control channel with from small to large order be mapped to successively from Or

On the Physical Resource Block index that beginning increases progressively continuously; With the odd number logical resource block index of ascending physical signal control channel with from small to large order be mapped to successively from

Or

On the Physical Resource Block index that beginning is successively decreased continuously;

And in the odd number time slot of radio frames, with even number logical resource block index with from small to large order be mapped to successively from

Or

On the Physical Resource Block index that successively decreases continuously; With odd number logical resource block index with from small to large order be mapped to successively from

Or

On the Physical Resource Block index that increases progressively continuously;

Wherein, M is

Or

Or P is second threshold value, N _RB ^ULBe the quantity of the pairing Resource Block of up-link bandwidth, N _RAFor on subframe, the quantity of Physical Random Access Channel.

On the other hand, this method can further comprise:

The logical resource block index of ascending physical signal control channel smaller or equal to or situation less than second threshold value under, at the even number time slot of radio frames, the even number logical resource block index of ascending physical signal control channel is mapped to since 0 successively with from small to large order is incremented to continuously on the Physical Resource Block index of M-1; The odd number logical resource block index of ascending physical signal control channel is mapped to from N successively with from small to large order _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the Physical Resource Block index of-M;

And, even number logical resource block index is mapped to from N successively with from small to large order at the odd number time slot of radio frames _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the Physical Resource Block index of-M; Odd number logical resource block index is mapped to since 0 successively with from small to large order is incremented to continuously on the Physical Resource Block index of M-1.

And when the logical resource block index of mapping uplink physical control channel, the logical resource block index of Physical Resource Block index and ascending physical signal control channel satisfies following relation:

Wherein, when $N_{\mathrm{RB}}^{\mathrm{UL}}\≤Q$ The time, m '=m; Otherwise

Wherein, n _PRBBe the Physical Resource Block index, m is the logic index of ascending physical signal control channel, and Q is first threshold value, n _sBe the numbering of the time slot position in the radio frames.

Particularly, exist $N_{\mathrm{RB}}^{\mathrm{UL}}\&le;Q$ Or $N_{\mathrm{RB}}^{\mathrm{UL}}<Q$ Situation under, further comprise following processing:

At the even number time slot of radio frames, the even number logical resource block index of ascending physical signal control channel is mapped to since the 0 Physical Resource Block index that increases progressively continuously successively with from small to large order; The logical resource block index of odd number is mapped to from N successively with from small to large order _RB ^ULOn the Physical Resource Block index that-1 beginning is successively decreased continuously;

At the odd number time slot of radio frames, the even number logical resource block index of ascending physical signal control channel is mapped to from N successively with from small to large order _RB ^ULOn the Physical Resource Block index that-1 beginning is successively decreased continuously; The logical resource block index of odd number is mapped to since the 0 Physical Resource Block index that increases progressively continuously successively with from small to large order.

Alternatively, first threshold value is 10 or 6 or 8 or 15 or 12 or 25.Alternatively, second threshold value is

Or

Or 0 or

Or

Wherein, N _RB ⁽²⁾Be the quantity of Resource Block shared in second first time slot of class ascending physical signal control channel.

In addition, the minimum value of the logical resource block index of ascending physical signal control channel and Physical Resource Block index is 0.

According to a further aspect in the invention, a kind of method for mapping resource of ascending physical signal control channel is provided, be used for the pairing number of resource blocks of up-link bandwidth more than or equal to or greater than the situation of first threshold value under the logical resource block index of ascending physical signal control channel is mapped to the Physical Resource Block index.

Method for mapping resource according to ascending physical signal control channel of the present invention comprises:

The logical resource block index of ascending physical signal control channel smaller or equal to or situation less than second threshold value under, at the even number time slot of a radio frames, the even number logical resource block index of ascending physical signal control channel is mapped to since 0 successively with from small to large order is incremented to continuously on the Physical Resource Block index of M-1; The odd number logical resource block index of ascending physical signal control channel is mapped to from N successively with from small to large order _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the Physical Resource Block index of-M;

And, even number logical resource block index is mapped to from N successively with from small to large order at the odd number time slot of radio frames _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the Physical Resource Block index of-M; Odd number logical resource block index is mapped to since 0 successively with from small to large order is incremented to continuously on the Physical Resource Block index of M-1;

Wherein, M is

Or, Or

P is second threshold value, N _RB ^ULBe the quantity of the pairing Resource Block of up-link bandwidth, N _RAQuantity for Physical Random Access Channel on subframe.

In accordance with a further aspect of the present invention, a kind of resource mapping apparatus of ascending physical signal control channel is provided, be used for the pairing number of resource blocks of up-link bandwidth more than or equal to or greater than the situation of first threshold value under the logical resource block index of ascending physical signal control channel is mapped to the Physical Resource Block index.

Resource mapping apparatus according to ascending physical signal control channel of the present invention comprises:

First mapping block, be used for the logical resource block index of ascending physical signal control channel more than or equal to or situation greater than second threshold value under, in the even number time slot of subframe, with the even number logical resource block index of ascending physical signal control channel with from small to large order be mapped to successively from Or

On the Physical Resource Block index that beginning increases progressively continuously; With the odd number logical resource block index of ascending physical signal control channel with from small to large order be mapped to successively from

Or

On the Physical Resource Block index that beginning is successively decreased continuously;

Second mapping block, be used for the logical resource block index of ascending physical signal control channel more than or equal to or situation greater than second threshold value under, in the odd number time slot of subframe, with even number logical resource block index with from small to large order be mapped to successively from

Or

On the Physical Resource Block index that successively decreases continuously; With odd number logical resource block index with from small to large order be mapped to successively from Or

On the Physical Resource Block index that increases progressively continuously;

Wherein, M is

Or

Or

P is second threshold value, N _RB ^ULBe the quantity of the pairing Resource Block of up-link bandwidth, N _RAFor on subframe, the quantity of Physical Random Access Channel.

And this device can further comprise:

The 3rd mapping block, be used for the logical resource block index of ascending physical signal control channel smaller or equal to or situation less than second threshold value under, at the odd number time slot of subframe, the even number logical resource block index of ascending physical signal control channel is mapped to since 0 successively with from small to large order is incremented to continuously on the Physical Resource Block index of M-1; The odd number logical resource block index of ascending physical signal control channel is mapped to from N successively with from small to large order _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the Physical Resource Block index of-M;

The 4th mapping block, be used for the logical resource block index of ascending physical signal control channel smaller or equal to or situation less than second threshold value under, at the even number time slot of subframe, even number logical resource block index is mapped to from N successively with from small to large order _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the Physical Resource Block index of-M; Odd number logical resource block index is mapped to since 0 successively with from small to large order is incremented to continuously on the Physical Resource Block index of M-1.

By technique scheme of the present invention, improve by mapping mode the logical resource block index of PUCCH, that is, on frequency domain, avoid PRACH, thereby avoided the interference of PRACH channel and PUCCH and SRS.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 is the frame structure schematic diagram of LTE system under tdd mode in the correlation technique;

Fig. 2 is the frame structure schematic diagram of LTE system under fdd mode in the correlation technique;

Fig. 3 is the schematic diagram of PRACH channel architecture in the correlation technique;

Fig. 4 is the structural representation of RB and RE in the correlation technique;

Fig. 5 is the schematic diagram that PUCCH logic RB indexes the mapping result of physics RB index in the correlation technique;

Fig. 6 is the mapping result schematic diagram that indexes physics RB index according to PUCCH logic RB in the processing example 1 of the method for mapping resource of the ascending physical signal control channel of the inventive method embodiment;

Fig. 7 is the mapping result schematic diagram that indexes physics RB index according to PUCCH logic RB in the processing example 2 of the method for mapping resource of the ascending physical signal control channel of the inventive method embodiment;

Fig. 8 is the mapping result schematic diagram that indexes physics RB index according to PUCCH logic RB in the processing example 3 of the method for mapping resource of the ascending physical signal control channel of the inventive method embodiment;

Fig. 9 is the mapping result schematic diagram that indexes physics RB index according to PUCCH logic RB in the processing example 4 of the method for mapping resource of the ascending physical signal control channel of the inventive method embodiment;

Figure 10 is the mapping result schematic diagram that indexes physics RB index according to PUCCH logic RB in the processing example 5 of the method for mapping resource of the ascending physical signal control channel of the inventive method embodiment;

Figure 11 is the mapping result schematic diagram that indexes physics RB index according to PUCCH logic RB in the processing example 6 of the method for mapping resource of the ascending physical signal control channel of the inventive method embodiment;

Figure 12 is the mapping result schematic diagram that indexes physics RB index according to PUCCH logic RB in the processing example 7 of the method for mapping resource of the ascending physical signal control channel of the inventive method embodiment;

Figure 13 is the block diagram according to the resource mapping apparatus of the ascending physical signal control channel of apparatus of the present invention embodiment.

Embodiment

According to embodiments of the invention, provide the method for mapping resource of a kind of PUCCH.

This method is considered in the correlation technique because the deficiency of the logical resource block index mapping method of PUCCH causes existing between PRACH and the PUCCH problem of disturbing, and the mapping method of the logical resource block index of PUCCH is improved.

Mapping method after the improvement can the RB number of up-link bandwidth correspondence more than or equal to or only under the situation greater than first threshold value (Q), be mapped in the process of physics RB index at logic RB index, the frequency domain position of the logic RB index of the PUCCH that is mapped to physics RB index is not conflicted with the frequency domain position of Physical Random Access Channel PUCCH.

Wherein, the logic RB of PUCCH index more than or equal to or only under the situation greater than second threshold value (P), the processing of the logic RB index of mapping PUCCH is specially:

In the even number time slot of a radio frames (or be called first time slot of the subframe), with the even number logic RB index of PUCCH with from small to large order be mapped to successively from Or

On the physics RB index that beginning increases progressively continuously; With the odd number logic RB index of PUCCH with from small to large order be mapped to successively from Or

On the physics RB index that beginning is successively decreased continuously;

In the odd number time slot of radio frames second time slot of a subframe (or be called), with even number logic RB index with from small to large order be mapped to successively from

Or

On the physics RB index that successively decreases continuously; With odd number logic RB index with from small to large order be mapped to successively from

Or

On the physics RB index that increases progressively continuously;

Wherein, M is

Or

Or

P is second threshold value, N _RB ^ULBe the quantity of the pairing RB of up-link bandwidth, N _RAQuantity for PRACH on subframe, this notion is equal to the quantity of Physical Random Access Channel on the quantity of Physical Random Access Channel on the quantity of the identical PRACH of time-domain position or the frequency domain or the subframe, and, be the quantity of PRACH on identical UpPTS for preambleformat 4.

On the other hand, the logic RB of PUCCH index smaller or equal to or only under the situation less than second threshold value, the processing of the logic RB index of mapping PUCCH is specially:

At the even number time slot of radio frames, the even number logic RB index of PUCCH is mapped to since 0 successively with from small to large order is incremented to continuously on the physics RB index of M-1; The odd number logic RB index of PUCCH is mapped to from N successively with from small to large order _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the physics RB index of-M;

At the odd number time slot of radio frames, even number logic RB index is mapped to from N successively with from small to large order _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the physics RB index of-M; Odd number logic RB index is mapped to since 0 successively with from small to large order is incremented to continuously on the physics RB index of M-1.

And when the logic RB index of mapping PUCCH, the logic RB index of physics RB index and PUCCH satisfies following relation:

Formula (1);

Wherein, when $N_{\mathrm{RB}}^{\mathrm{UL}}\&le;Q$ The time, m '=m; Otherwise

Formula (2);

Wherein, n _PRBBe physics RB index, m is the logic index of PUCCH, and Q is first threshold value, n _sBe the numbering of the time slot position in the radio frames.

In addition, first threshold value is 10 or 6 or 8 or 15 or 12 or 25.

And second threshold value is

Or

Or 0, wherein, N _RB ⁽²⁾Be the quantity of the shared RB of second first time slot of class PUCCH.

And in above-mentioned processing, the minimum value of the logic RB index of PUCCH and physics RB index is 0, and, the mapping of each logic RB index of PUCCH not with before the mapping logic RB index repeating mapping to same physics RB index.

Below will be by to N _RB ^UL, N _RB ⁽²⁾, N _RA, P, M and Q be provided with concrete numerical value as an example, describes the mapping result that method for mapping resource brought according to PUCCH of the present invention.

Example 1

If $N_{\mathrm{RB}}^{\mathrm{UL}}=25,$ $N_{\mathrm{RB}}^{\left(2\right)}=3,$ N _RA＝2，

$M=\frac{\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="A20081021047400302.png,A20081021047400321.png"\; state="\{\{state\}\}">P</figure-callout>}}{2}=1,$ Q=10, the logic RB number of PUCCH is 5, logic RB index m=0,1 ... 4.

Employing according to mapping method of the present invention after, can obtain mapping result shown in Figure 6:

At first time slot of a subframe, PUCCH logic RB index m=0,1 ... 4 are mapped to physics RB index 0,24,7,17,8 respectively;

At first time slot of a subframe, PUCCH logic RB index m=0,1 ... 4 are mapped to physics RB index 24,0,17,7,16 respectively.

Example 2

If $N_{\mathrm{RB}}^{\mathrm{UL}}=25,$ $N_{\mathrm{RB}}^{\left(2\right)}=2,$ N _RA＝1，

$M=\frac{\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="A20081021047400302.png,A20081021047400321.png"\; state="\{\{state\}\}">P</figure-callout>}}{2}=1,$ Q=10, the logic RB number of PUCCH is 5, logic RB index m=0,1 ... 4.

Employing according to mapping method of the present invention after, can obtain mapping result shown in Figure 7:

At first time slot of a subframe, PUCCH logic RB index m=0,1 ... 4 are mapped to physics RB index 0,24,7,23,8 respectively;

At first time slot of a subframe, PUCCH logic RB index m=0,1 ... 4 are mapped to physics RB index 24,0,23,7,22 respectively.

Example 3

If $N_{\mathrm{RB}}^{\mathrm{UL}}=25,$ $N_{\mathrm{RB}}^{\left(2\right)}=3,$ N _RA＝2，

$M=\frac{\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="A20081021047400302.png,A20081021047400321.png"\; state="\{\{state\}\}">P</figure-callout>}}{2}=2,$ Q=10, the logic RB number of PUCCH is 5, logic RB index m=0,1 ... 4.

Employing according to mapping method of the present invention after, can obtain mapping result shown in Figure 8:

At first time slot of a subframe, PUCCH logic RB index m=0,1 ... 4 are mapped to physics RB index 0,24,1,23,8 respectively;

At first time slot of a subframe, PUCCH logic RB index m=0,1 ... 4 are mapped to physics RB index 24,0,23,1,16 respectively.

Example 4

If $N_{\mathrm{RB}}^{\mathrm{UL}}=25,$ $N_{\mathrm{RB}}^{\left(2\right)}=3,$ N _RA＝1，

$M=\frac{\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="A20081021047400302.png,A20081021047400321.png"\; state="\{\{state\}\}">P</figure-callout>}}{2}=2,$ Q=10, the logic RB number of PUCCH is 5, logic RB index m=0,1 ... 4.

Employing according to mapping method of the present invention after, can obtain mapping result shown in Figure 9:

At first time slot of a subframe, PUCCH logic RB index m=0,1 ... 4 are mapped to physics RB index 0,24,1,23,8 respectively;

At first time slot of a subframe, PUCCH logic RB index m=0,1 ... 4 are mapped to physics RB index 24,0,23,1,22 respectively.

Example 5

If $N_{\mathrm{RB}}^{\mathrm{UL}}=25,$ $N_{\mathrm{RB}}^{\left(2\right)}=3,$ N _RA＝1，P＝0， $M=\frac{\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="A20081021047400302.png,A20081021047400321.png"\; state="\{\{state\}\}">P</figure-callout>}}{2}=0,$ Q＝10。The logic RB number of PUCCH is 5, logic RB index m=0, and 1 ... 4.

Employing according to mapping method of the present invention after, can obtain mapping result shown in Figure 10:

At first time slot of a subframe, PUCCH logic RB index m=0,1 ... 4 are mapped to physics RB index 6,24,7,23,8 respectively;

At first time slot of a subframe, PUCCH logic RB index m=0,1 ... 4 are mapped to physics RB index 24,6,23,7,22 respectively.

Example 6

$N_{\mathrm{RB}}^{\mathrm{UL}}=25,$ $N_{\mathrm{RB}}^{\left(2\right)}=3,$ N _RA＝2，P＝0， $M=\frac{\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="A20081021047400302.png,A20081021047400321.png"\; state="\{\{state\}\}">P</figure-callout>}}{2}=0,$ Q＝10。The logic RB number of PUCCH is 5, logic RB index m=0, and 1 ... 4.

Employing according to mapping method of the present invention after, can obtain mapping result shown in Figure 11:

At first time slot of a subframe, PUCCH logic RB index m=0,1 ... 4 are mapped to physics RB index 6,18,4,7,17,8 respectively;

At first time slot of a subframe, PUCCH logic RB index m=0,1 ... 4 are mapped to physics RB index 18,6,17,7,16 respectively.

Example 7

If $N_{\mathrm{RB}}^{\mathrm{UL}}=6,$ The logic RB number of PUCCH is 3, logic RB index m=0,1,2;

Employing according to mapping method of the present invention after, can obtain mapping result shown in Figure 12:

At first time slot of a subframe, PUCCH logic RB index m=0,1,2 is mapped to physics RB index 0,5,1 respectively;

At first time slot of a subframe, PUCCH logic RB index m=0,1,2 is mapped to physics RB index 5,0,4 respectively.

Above-mentioned situation all be at $N_{\mathrm{RB}}^{\mathrm{UL}}>Q$ Or $N_{\mathrm{RB}}^{\mathrm{UL}}\&GreaterEqual;Q$ , for $N_{\mathrm{RB}}^{\mathrm{UL}}\&le;Q$ Or $N_{\mathrm{RB}}^{\mathrm{UL}}<Q$ Situation (wherein, the Rule of judgment at the former is $N_{\mathrm{RB}}^{\mathrm{UL}}>Q$ Situation under, the latter's Rule of judgment is $N_{\mathrm{RB}}^{\mathrm{UL}}\&le;Q;$ Rule of judgment at the former is $N_{\mathrm{RB}}^{\mathrm{UL}}\&GreaterEqual;Q$ Situation under, the latter's Rule of judgment is $N_{\mathrm{RB}}^{\mathrm{UL}}<Q;$ In addition, also adopt this corresponded manner for the logic RB index of PUCCH and the judgement of second threshold value (P)), that is, and N _RB ^ULLess than the first above-mentioned threshold value, processing mode is as follows: at first time slot (that is, the even number time slot of radio frames) of a subframe, the logic RB index of even number is mapped to since the 0 physics RB index that increases progressively continuously successively with from small to large order; The logic RB index of odd number is mapped to from N successively with from small to large order _RB ^ULOn the physics RB index that-1 beginning is successively decreased continuously;

At second time slot (the odd number time slot of radio frames) of a subframe, the logic RB index of even number is mapped to from N successively with from small to large order _RB ^ULOn the physics RB index that-1 beginning is successively decreased continuously; The logic RB index of odd number is mapped to since the 0 physics RB index that increases progressively continuously successively with from small to large order.

Device embodiment

In the present embodiment, provide a kind of resource mapping apparatus of ascending physical signal control channel, be used for the pairing RB number of up-link bandwidth more than or equal to or only greater than the situation of first threshold value under the logic RB index of PUCCH is mapped to physics RB index.

As shown in figure 13, the resource mapping apparatus according to the PUCCH of present embodiment comprises:

First mapping block 10, be used for the logic RB of PUCCH index more than or equal to or only under the situation greater than second threshold value, in the even number time slot of radio frames, with the even number logic RB index of PUCCH with from small to large order be mapped to successively from Or On the physics RB index that beginning increases progressively continuously; With the odd number logic RB index of PUCCH with from small to large order be mapped to successively from

Or

On the physics RB index that beginning is successively decreased continuously;

Second mapping block 20, be used for the logic RB of PUCCH index more than or equal to or only under the situation greater than second threshold value, in the odd number time slot of radio frames, with even number logic RB index with from small to large order be mapped to successively from

Or

On the physics RB index that successively decreases continuously; With odd number logic RB index with from small to large order be mapped to successively from

Or

On the physics RB index that increases progressively continuously;

Wherein, M is

Or

Or

P is second threshold value, N _RB ^ULBe the quantity of the pairing RB of up-link bandwidth, N _RAFor on subframe, the quantity of Physical Random Access Channel, this notion are equal to the quantity of Physical Random Access Channel on the quantity of Physical Random Access Channel on the quantity of the identical PRACH of time-domain position or the frequency domain or the subframe.For preamble format 4, be the quantity of PRACH on identical UpPTS.

This device further comprises:

The 3rd mapping block (not shown), be used for the logic RB of PUCCH index smaller or equal to or only under the situation less than second threshold value, at the odd number time slot of radio frames, the even number logic RB index of PUCCH is mapped to since 0 successively with from small to large order is incremented to continuously on the physics RB index of M-1; The odd number logic RB index of PUCCH is mapped to from N successively with from small to large order _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the physics RB index of-M;

The 4th mapping block (not shown), be used for the logic RB of PUCCH index smaller or equal to or only under the situation less than second threshold value, at the even number time slot of radio frames, even number logic RB index is mapped to from N successively with from small to large order _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the physics RB index of-M; Odd number logic RB index is mapped to since 0 successively with from small to large order is incremented to continuously on the physics RB index of M-1.

By means of above-mentioned module, this device can be realized and the mapping result identical according to the mapping method of the inventive method embodiment (shown in Fig. 6 to 12).

In sum,, improve, that is, on frequency domain, avoid PRACH, thereby avoided the interference of PRACH channel and PUCCH and SRS by mapping mode to the logic RB index of PUCCH by means of technical scheme of the present invention; In addition, can also avoid the PUSCH channel is divided into multistage as far as possible, improve the flexibility of scheduling.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. the method for mapping resource of an ascending physical signal control channel, be used for the pairing number of resource blocks of up-link bandwidth more than or equal to or greater than the situation of first threshold value under the logical resource block index of described ascending physical signal control channel is mapped to the Physical Resource Block index, it is characterized in that described method comprises:

The logical resource block index of described ascending physical signal control channel more than or equal to or situation greater than second threshold value under, in the even number time slot of a radio frames, with the even number logical resource block index of described ascending physical signal control channel with from small to large order be mapped to successively from

Or On the Physical Resource Block index that beginning increases progressively continuously; With the odd number logical resource block index of described ascending physical signal control channel with from small to large order be mapped to successively from

Or

On the Physical Resource Block index that beginning is successively decreased continuously;

And in the odd number time slot of described radio frames, with described even number logical resource block index with from small to large order be mapped to successively from

Or On the Physical Resource Block index that successively decreases continuously; With described odd number logical resource block index with from small to large order be mapped to successively from

Or

On the Physical Resource Block index that increases progressively continuously;

Wherein, M is

Or

Or

P is described second threshold value, N _RB ^ULBe the quantity of the pairing Resource Block of up-link bandwidth, N _RAFor on subframe, the quantity of Physical Random Access Channel.

2. method according to claim 1 is characterized in that, further comprises:

The logical resource block index of described ascending physical signal control channel smaller or equal to or situation less than described second threshold value under, at the even number time slot of described radio frames, the even number logical resource block index of described ascending physical signal control channel is mapped to since 0 successively with from small to large order is incremented to continuously on the Physical Resource Block index of M-1; The odd number logical resource block index of described ascending physical signal control channel is mapped to from N successively with from small to large order _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the Physical Resource Block index of-M;

And, described even number logical resource block index is mapped to from N successively with from small to large order at the odd number time slot of described radio frames _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the Physical Resource Block index of-M; Described odd number logical resource block index is mapped to since 0 successively with from small to large order is incremented to continuously on the Physical Resource Block index of M-1.

3. method according to claim 1 and 2 is characterized in that, when the logical resource block index of the described ascending physical signal control channel of mapping, the logical resource block index of Physical Resource Block index and described ascending physical signal control channel satisfies following relation:

Wherein, when $N_{\mathrm{RB}}^{\mathrm{UL}}\&le;Q$ The time, m '=m; Otherwise

Wherein, n _PRBBe the Physical Resource Block index, m is the logic index of described ascending physical signal control channel, and Q is described first threshold value, n _sBe the numbering of the time slot position in the described radio frames.

4. method according to claim 3 is characterized in that, $N_{\mathrm{RB}}^{\mathrm{UL}}\&le;Q$ Or $N_{\mathrm{RB}}^{\mathrm{UL}}<Q$ Situation under, further comprise following processing:

At the even number time slot of described radio frames, the even number logical resource block index of described ascending physical signal control channel is mapped to since the 0 Physical Resource Block index that increases progressively continuously successively with from small to large order; The logical resource block index of odd number is mapped to from N successively with from small to large order _RB ^ULOn the Physical Resource Block index that-1 beginning is successively decreased continuously;

At the odd number time slot of described radio frames, the even number logical resource block index of described ascending physical signal control channel is mapped to from N successively with from small to large order _RB ^ULOn the Physical Resource Block index that-1 beginning is successively decreased continuously; The logical resource block index of odd number is mapped to since the 0 Physical Resource Block index that increases progressively continuously successively with from small to large order.

5. according to each described method in the claim 1 to 4, it is characterized in that described first threshold value is 10 or 6 or 8 or 15 or 12 or 25.

6. according to each described method in the claim 1 to 4, it is characterized in that described second threshold value is Or

Or 0 or

Or

Wherein, N _RB ⁽²⁾Be the quantity of Resource Block shared in second first time slot of class ascending physical signal control channel.

7. according to each described method in the claim 1 to 4, it is characterized in that the logical resource block index of described ascending physical signal control channel and the minimum value of described Physical Resource Block index are 0.

8. the method for mapping resource of an ascending physical signal control channel, be used for the pairing number of resource blocks of up-link bandwidth more than or equal to or greater than the situation of first threshold value under the logical resource block index of described ascending physical signal control channel is mapped to the Physical Resource Block index, it is characterized in that described method comprises:

The logical resource block index of described ascending physical signal control channel smaller or equal to or situation less than described second threshold value under, at the even number time slot of a radio frames, the even number logical resource block index of described ascending physical signal control channel is mapped to since 0 successively with from small to large order is incremented to continuously on the Physical Resource Block index of M-1; The odd number logical resource block index of described ascending physical signal control channel is mapped to from N successively with from small to large order _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the Physical Resource Block index of-M;

And, described even number logical resource block index is mapped to from N successively with from small to large order at the odd number time slot of described radio frames _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the Physical Resource Block index of-M; Described odd number logical resource block index is mapped to since 0 successively with from small to large order is incremented to continuously on the Physical Resource Block index of M-1;

Wherein, M is

Or,

Or P is described second threshold value, N _RB ^ULBe the quantity of the pairing Resource Block of up-link bandwidth, N _RAQuantity for Physical Random Access Channel on subframe.

9. the resource mapping apparatus of an ascending physical signal control channel, be used for the pairing number of resource blocks of up-link bandwidth more than or equal to or greater than the situation of first threshold value under the logical resource block index of described ascending physical signal control channel is mapped to the Physical Resource Block index, it is characterized in that described device comprises:

First mapping block, be used for the logical resource block index of described ascending physical signal control channel more than or equal to or situation greater than second threshold value under, in the even number time slot of subframe, with the even number logical resource block index of described ascending physical signal control channel with from small to large order be mapped to successively from

Or

On the Physical Resource Block index that beginning increases progressively continuously; With the odd number logical resource block index of described ascending physical signal control channel with from small to large order be mapped to successively from

Or

On the Physical Resource Block index that beginning is successively decreased continuously;

Second mapping block, be used for the logical resource block index of described ascending physical signal control channel more than or equal to or situation greater than second threshold value under, in the odd number time slot of described subframe, with described even number logical resource block index with from small to large order be mapped to successively from

Or

On the Physical Resource Block index that successively decreases continuously; With described odd number logical resource block index with from small to large order be mapped to successively from

Or

On the Physical Resource Block index that increases progressively continuously;

Wherein, M is Or

Or

P is described second threshold value, N _RB ^ULBe the quantity of the pairing Resource Block of up-link bandwidth, N _RAFor on subframe, the quantity of Physical Random Access Channel.

10. device according to claim 9 is characterized in that, further comprises:

The 3rd mapping block, be used for the logical resource block index of described ascending physical signal control channel smaller or equal to or situation less than described second threshold value under, at the odd number time slot of described subframe, the even number logical resource block index of described ascending physical signal control channel is mapped to since 0 successively with from small to large order is incremented to continuously on the Physical Resource Block index of M-1; The odd number logical resource block index of described ascending physical signal control channel is mapped to from N successively with from small to large order _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the Physical Resource Block index of-M;

The 4th mapping block, be used for the logical resource block index of described ascending physical signal control channel smaller or equal to or situation less than described second threshold value under, at the even number time slot of described subframe, described even number logical resource block index is mapped to from N successively with from small to large order _RB ^UL-1 beginning is decremented to N continuously _RB ^ULOn the Physical Resource Block index of-M; Described odd number logical resource block index is mapped to since 0 successively with from small to large order is incremented to continuously on the Physical Resource Block index of M-1.

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