CN104243115B - Physical Multicast Channel transmission method and equipment - Google Patents
Physical Multicast Channel transmission method and equipment Download PDFInfo
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- CN104243115B CN104243115B CN201310226521.4A CN201310226521A CN104243115B CN 104243115 B CN104243115 B CN 104243115B CN 201310226521 A CN201310226521 A CN 201310226521A CN 104243115 B CN104243115 B CN 104243115B
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Abstract
The embodiment of the invention discloses a kind of Physical Multicast Channel PMCH transmission methods and equipment, it is related to wireless communication field, the flexibility ratio for improving transmission PMCH.In the present invention, network side equipment determines the quantity M of PMCH OFDM symbols shared in the descender region of a subframe, and quantity M is sent to by terminal by signaling, determined to send PMCH to terminal in PMCH OFDM symbols shared in the descender region of the subframe, the OFDM symbol in the burst according to quantity M；Terminal received quantity M, determines PMCH OFDM symbols shared in the descender region of the subframe according to quantity M, and receives PMCH in the OFDM symbol in the burst.Transmission PMCH flexibility ratio can be improved using this programme.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of Physical Multicast Channel transmission method and equipment.
Background technology
In Long Term Evolution（Long Term Evolution, LTE）In system, FDD（Frequency division
Duplex, FDD）And time division duplex（Time division duplex, TDD）The time span of the next radio frames of pattern is
10ms, the time span of a subframe is 1ms.For each radio frames under tdd mode, seven kinds of TDD uplink/downlink are defined
Frame is configured, and as shown in table 1, wherein D represents descending sub frame, and U represents sub-frame of uplink, and S represents the special subframe of TDD system.It is special
Subframe is made up of 3 special time slots, i.e. descending pilot frequency time slot（DwPTS）, protection time slot（GP）And uplink pilot time slot
（UpPTS）.
Table 1
There are various configurations in special subframe, as shown in table 2, wherein Ts=1/30720ms.Different districts can be used different
Special subframe is configured.DwPTS is used for downlink transfer, wherein the 3rd OFDM（Orthogonal Frequency
Division Multiplexing, OFDM）72, center subcarrier on symbol is always used for transmitting for carrying out cell initial search
（cell serach）Master sync signal, as shown in Figure 1.
Table 2
Multimedia broadcast-multicast service（Multimedia Broadcast Multicast Service, MBMS）Use thing
Manage Multicast Channel（Physical Multicast Channel, PMCH）Transmission.MBMS transmission has two kinds of transmission means：Single cell
With multiple cell transmission.The MBMS of single cell transmission is only transmitted in a cell range, Logical Traffic Channels and many Broadcast Controls
Channel processed both maps to the transmission that DSCH Downlink Shared Channel carries out point-to-multipoint.The MBMS of multiple cell transmission is wide in a multicast
Broadcast Single Frequency Network（Multicast Broadcast Single Frequency Network, MBSFN）Transmitted in region, it is how small
Area's synchronous transfer MBMS, at this moment Logical Traffic Channels and multicast control channel both map to Multicast Channel PMCH and carry out point pair
The transmission of multiple spot.Terminal can merge the PMCH from multiple synchronized cells, obtain macro diversity.
PMCH transmission subframe is configured by broadcast signaling.PMCH is only using extension CP（extended CP）, and in PMCH transmission
Whole frequency band is taken in subframe to be transmitted.In order to avoid PMCH and broadcast signaling, synchronizing signal, call signaling（paging）Punching
Prominent, LTE system is provided for FDD system, and descending sub frame { 0,4,5,9 } is not useable for transmitting PMCH；It is descending for TDD system
Subframe { 0,1,5,6 } is not useable for transmitting PMCH.
In order to reduce overhead, LTE versions 12（Rel-12）Middle discuss defines a kind of new carrier type（New
Carrier Type, NCT）, traditional Physical Downlink Control Channel is not transmitted in the carrier wave（Physical Downlink
Control Channel, PDCCH）.User's DRS (Dedicated Reference Signal) is based in the carrier wave（UE-specific reference
Signals, URS）Carry out data demodulation.The exclusive pilot signal of cell is not transmitted in the carrier wave（Cell-specific
Reference signals, CRS）Or a sub-frame transmission CRS is taken per 5ms and is only transmitted on port 0.
At present, when transmitting PMCH in descending sub frame, all descenders in the descending sub frame in addition to PDCCH region
PMCH is all transmitted in domain, and transmission flexibility ratio is relatively low.
The content of the invention
The embodiment of the present invention provides a kind of Physical Multicast Channel transmission method and equipment, for improving the flexible of transmission PMCH
Degree.
A kind of Physical Multicast Channel PMCH transmission methods, this method includes：
Network side equipment determines PMCH orthogonal frequency division multiplex OFDM symbols shared in the descender region of a subframe
Quantity M, and the quantity M is sent to by terminal by signaling, whereinTDLUnder in the subframe
The time span in row region, Ts=1/30720ms；
Network side equipment determines that PMCH OFDM shared in the descender region of the subframe are accorded with according to the quantity M
Number；
Network side equipment sends PMCH in the OFDM symbol in the subframe to terminal.
A kind of Physical Multicast Channel PMCH transmission methods, this method includes：
Terminal receive the PMCH that is sent by signaling of network side equipment in the descender region of a subframe it is shared just
The quantity M of frequency division multiplex OFDM symbol is handed over, whereinTDLTime for the descender region in the subframe is long
Degree, Ts=1/30720ms；
Terminal determines PMCH OFDM symbols shared in the descender region of the subframe according to the quantity M；
Terminal receives the PMCH that network side equipment is sent in the OFDM symbol in the subframe.
A kind of base station, the base station includes：
Symbolic number notification unit, the OFDM shared in the descender region of a subframe for determining PMCH
The quantity M of OFDM symbol, and the quantity M is sent to by terminal by signaling, whereinTDLFor the son
The time span of descender region in frame, Ts=1/30720ms；
Symbol determining unit is taken, shared by determining PMCH in the descender region of the subframe according to the quantity M
OFDM symbol；
First channel transmitting element, for the OFDM symbol in the subframe, PMCH is sent to terminal.
A kind of terminal, the terminal includes：
Symbolic number determining unit, for receiving PMCH that network side equipment sent by signaling in the descender of a subframe
The quantity M of shared orthogonal frequency division multiplex OFDM symbol in domain, whereinTDLUnder in the subframe
The time span in row region, Ts=1/30720ms；
Symbol determining unit is taken, shared by determining PMCH in the descender region of the subframe according to the quantity M
OFDM symbol；
First channel receiving unit, for the OFDM symbol in the subframe, receives network side equipment and sends
PMCH.
In scheme provided in an embodiment of the present invention, network side equipment determines that PMCH is shared in the descender region of a subframe
The quantity M of OFDM symbol, and quantity M is sent to by terminal by signaling, whereinTDLFor the son
The time span of descender region in frame, Ts=1/30720ms；Network side equipment determines PMCH in the subframe according to quantity M
Shared OFDM symbol in descender region, then in the OFDM symbol in the burst, PMCH is sent to terminal；Terminal connects
The quantity M that network side equipment is sent is received, determines that PMCH OFDM shared in the descender region of the subframe are accorded with according to quantity M
Number, and in the OFDM symbol in the burst, receive the PMCH that network side equipment is sent.It can be seen that present solution provides a kind of new
PMCH transmission methods, the quantity M of OFDM symbol shared in the descender region of a subframe PMCH is spirit in this method
Work is variable, and OFDM symbol shared in the descender region of a subframe PMCH is also flexibility and changeability, with prior art
In all descender regions for being always held in descending sub frame in addition to PDCCH region all transmit PMCH and compare, passed in this programme
Defeated PMCH flexibility ratio is higher.
Brief description of the drawings
Fig. 1 is DwPTS time slots schematic diagram of the prior art；
Fig. 2 is method flow schematic diagram provided in an embodiment of the present invention；
Fig. 3 is another method schematic flow sheet provided in an embodiment of the present invention；
Fig. 4 a are the PMCH mapping schematic diagrames in the embodiment of the present invention one；
Fig. 4 b are another PMCH mapping schematic diagrames in the embodiment of the present invention one；
Fig. 4 c are the corresponding E-PDCCH/PDSCH mappings schematic diagrames of Fig. 4 a in the embodiment of the present invention one；
Fig. 4 d are the corresponding E-PDCCH/PDSCH mappings schematic diagrames of Fig. 4 b in the embodiment of the present invention one；
Fig. 5 a are the PMCH mapping schematic diagrames in the embodiment of the present invention two；
Fig. 5 b are another PMCH mapping schematic diagrames in the embodiment of the present invention two；
Fig. 5 c are the corresponding E-PDCCH/PDSCH mappings schematic diagrames of Fig. 5 a in the embodiment of the present invention two；
Fig. 5 d are the corresponding E-PDCCH/PDSCH mappings schematic diagrames of Fig. 5 b in the embodiment of the present invention two；
Fig. 6 a are the PMCH mapping schematic diagrames in the embodiment of the present invention three；
Fig. 6 b are another PMCH mapping schematic diagrames in the embodiment of the present invention three；
Fig. 6 c are the corresponding E-PDCCH/PDSCH mappings schematic diagrames of Fig. 6 a in the embodiment of the present invention three；
Fig. 6 d are the corresponding E-PDCCH/PDSCH mappings schematic diagrames of Fig. 6 b in the embodiment of the present invention three；
Fig. 7 is architecture of base station schematic diagram provided in an embodiment of the present invention；
Fig. 8 is terminal structure schematic diagram provided in an embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of new PMCH transmission methods, using this method, can TDD system subframe 1
Or PMCH is transmitted in subframe 6, so that extended wireless frame in is used for the sub-frame number for transmitting MBMS, improve system resource utilization
Rate.
Referring to Fig. 2, the embodiment of the present invention is directed to the PMCH transmission methods that network side is provided, comprised the following steps：
Step 20：Network side equipment determines PMCH OFDMs shared in the descender region of a subframe
（OFDM）The quantity M of symbol, and quantity M is sent to by terminal by signaling, whereinTDLFor the subframe
In descender region time span, Ts=1/30720ms；
Here, the subframe can be subframe 1 or subframe 6, when the subframe is subframe 1, and PMCH is descending subframe
The quantity of shared OFDM symbol is M1, T in regionDL=TDwPTS_SF1,TDwPTS_SF1For in subframe 1
DwPTS time span；When the subframe is subframe 6, OFDM symbol shared in the descender region of a subframe PMCH
Quantity be M2, TDL=TDwPTS_SF6,If current carrier using TDD uplink/downlink with set to 0 or TDD on/
Downstream arrangements 1 or TDD uplink/downlink configuration 2 or TDD uplink/downlink configure 6, then TDwPTS_SF6For the length of DwPTS in subframe 6；If
Current carrier configures 5 using TDD uplink/downlink configuration 3 or TDD uplink/downlink configuration 4 or TDD uplink/downlink, then TDwPTS_SF6=1ms,
Referring specifically to table 2.M1 physical significance be in MBSFN regions in all cells in subframe 1 used in most short DwPTS institutes
Comprising OFDM symbol quantity, M2 physical significance be in MBSFN regions in all cells in subframe 6 used in it is most short
The quantity of OFDM symbol that is included of DwPTS.
Step 21：Network side equipment determines that PMCH OFDM shared in the descender region of the subframe are accorded with according to quantity M
Number；
Step 22：Network side equipment is in PMCH OFDM symbols shared in the descender region of the subframe, to terminal
Send PMCH.
In step 21, network side equipment determines PMCH OFDM shared in the descender region of the subframe according to quantity M
Symbol, implementing can be as follows：
In time division duplex（TDD）Master sync signal uses conventional cyclic prefix in system（CP）Or during extension CP, if the son
Frame is subframe 1, then network side equipment determines that OFDM symbol shared in the descender region of subframe 1 is PMCH in a tdd system：
7680T in subframe 1sContinuous N OFDM symbol after time point, or first OFDM that original position starts in subframe 1
Symbol and 7680Ts- 1 OFDM symbol of continuous N after time point；If the subframe is subframe 6, network side equipment is determined
OFDM symbol shared in the descender region of subframe 6 is PMCH in a tdd system：7680T in subframe 6sAfter time point
Continuous N OFDM symbol, or first OFDM symbol and 7680T that original position starts in subframe 6sAfter time point
- 1 OFDM symbol of continuous N；Or,
When master sync signal is using extension CP in a tdd system, if the subframe is subframe 1, network side equipment is determined
OFDM symbol shared in the descender region of subframe 1 is PMCH in a tdd system：The continuous N that original position starts in subframe 1
Individual OFDM symbol, wherein resource unit does not map PMCH where master sync signal（I.e. in the resource list where master sync signal
PMCH is not sent in member）；If the subframe is subframe 6, network side equipment determines the descender of PMCH subframes 6 in a tdd system
Shared OFDM symbol is in domain：The continuous N OFDM symbol that original position starts in subframe 6, wherein in master sync signal
Place resource unit does not map PMCH（I.e. on the resource unit where the master sync signal of this continuous M OFDM symbol not
Send PMCH）.
Specifically, network side equipment can be in OFDM symbols shared in the descender region of the subframe PMCH in step 22
Number whole frequency bands or partial-band on, to terminal send PMCH.
Preferably, when PMCH only takes up partial-band transmission, other frequency bands can be used for transmission E-PDCCH or PDSCH.By
In CP consistent lengths in an OFDM symbol, therefore E-PDCCH or PDSCH are also required to using extension CP transmission.Due to E-PDCCH
Or PDSCH is single cell transmission, therefore configure, therefore can continue in time domain without the concern for the special subframe of other cells
To the end position of subframe 1 or the descender region of subframe 6.It is specific as follows：
Subframe 1 in the subframe is TDD system, in step 22 network side equipment PMCH subframe 1 descender region
In shared OFDM symbol partial-band on to terminal send PMCH when, network side equipment can also as follows to
Terminal sends enhanced Physical Downlink Control Channel（E-PDCCH）Or Physical Downlink Shared Channel（PDSCH）：
When master sync signal is using routine CP or extension CP in a tdd system, network side equipment 7680T in subframe 1s
On the frequency band not taken by PMCH of continuous N number of OFDM symbol after time point, E-PDCCH or PDSCH is sent to terminal, or
First OFDM symbol and 7680T that network side equipment original position in subframe 1 startssContinuous N after time point
On the frequency band not taken by PMCH of individual OFDM symbol, E-PDCCH or PDSCH is sent to terminal, wherein,Or
When master sync signal is using extension CP in a tdd system, the network side equipment N that original position starts in subframe 1
On the frequency band not taken by PMCH of individual OFDM symbol, E-PDCCH or PDSCH is sent to terminal；Wherein in master sync signal institute
Resource unit do not map E-PDCCH or PDSCH（I.e. the resource unit where master sync signal do not transmit E-PDCCH or
PDSCH）,
Likewise, the subframe 6 in the subframe is TDD system, in step 22 network side equipment in PMCH under subframe 6
When sending PMCH to terminal on the partial-band of shared OFDM symbol in row region, network side equipment can be according to such as lower section
Normal direction terminal sends E-PDCCH or PDSCH：
When master sync signal is using routine CP or extension CP in a tdd system, network side equipment 7680T in subframe 6s
On the frequency band not taken by PMCH of continuous N number of OFDM symbol after time point, E-PDCCH or PDSCH is sent to terminal, or
First OFDM symbol and 7680T that network side equipment original position in subframe 6 startssContinuous N after time point
On the frequency band not taken by PMCH of individual OFDM symbol, E-PDCCH or PDSCH is sent to terminal, wherein,Or
When master sync signal is using extension CP in a tdd system, network side equipment original position in subframe 1 or subframe 6
On the frequency band not taken by PMCH of the N number of OFDM symbol started, E-PDCCH or PDSCH is sent to terminal；Wherein in main synchronization
Resource unit where signal does not map E-PDCCH or PDSCH（E- is not transmitted in the resource unit where master sync signal
PDCCH or PDSCH）,
Preferably, in network side equipment in OFDM symbol shared in the descender region of the subframe PMCH in step 22
On partial-band on to terminal send PMCH when, the positional information of the partial-band can also be passed through signaling by network side equipment
Terminal is sent to, so that terminal determines the position for the partial-band that PMCH takes according to the positional information.
Specifically, network side equipment to terminal notification quantity M and partial-band positional information when the signaling that is used, can
Think broadcast signaling or high-level signaling.
Preferably, before step 22, network side equipment can also be to terminal send configuration signaling, with instruction terminal at this
PMCH is received in subframe.
Further, after step 20, before step 22, network side equipment can determine to hold in PMCH according to quantity M
The transport block size of load（Transport block size, TBS）；Accordingly, network side equipment can be in PMCH in step 22
In the descender region of the subframe in shared OFDM symbol, PMCH is sent to terminal according to the transport block size of determination.This
In, it is specifically as follows according to the method for the quantity M transport block sizes for determining to carry in PMCH：It is first according to equation below and determines ginseng
Number NPRB：Then according to NPRBThe predefined transport block size form of lookup standard
（TBS table）, the transport block size carried in current PMCH is obtained, whereinFor the physical resource shared by transmission PMCH
Block（PRB）Quantity.
Network side equipment in the present invention can be specifically base station etc. can be communicated with terminal be located at network side
Equipment.
Referring to Fig. 3, the embodiment of the present invention is directed to the PMCH transmission methods that end side is provided, comprised the following steps：
Step 30：The PMCH that terminal reception network side equipment is sent by signaling is shared in the descender region of a subframe
The quantity M of OFDM symbol, whereinTDLFor the time span of the descender region in the subframe, Ts=1/
30720ms；
Here, the subframe can be subframe 1 or subframe 6, when the subframe is subframe 1, and PMCH is descending subframe
The quantity of shared OFDM symbol is M1, T in regionDL=TDwPTS_SF1,TDwPTS_SF1For in subframe 1
DwPTS time span；When the subframe is subframe 6, OFDM symbol shared in the descender region of a subframe PMCH
Quantity be M2, TDL=TDwPTS_SF6,If current carrier using TDD uplink/downlink with set to 0 or TDD on/
Downstream arrangements 1 or TDD uplink/downlink configuration 2 or TDD uplink/downlink configure 6, then TDwPTS_SF6For the length of DwPTS in subframe 6；If
Current carrier configures 5 using TDD uplink/downlink configuration 3 or TDD uplink/downlink configuration 4 or TDD uplink/downlink, then TDwPTS_SF6=1ms,
Referring specifically to table 2.M1 physical significance be in MBSFN regions in all cells in subframe 1 used in most short DwPTS institutes
Comprising OFDM symbol quantity, M2 physical significance be in MBSFN regions in all cells in subframe 6 used in it is most short
The quantity of OFDM symbol that is included of DwPTS.
Step 31：Terminal determines PMCH OFDM symbols shared in the descender region of the subframe according to quantity M；
Step 32：Terminal receives network side and set in PMCH OFDM symbols shared in the descender region of the subframe
The PMCH that preparation is sent.
Specifically, terminal determines PMCH OFDM shared in the descender region of the subframe according to quantity M in step 31
Symbol, implementing can be as follows：
When master sync signal is using routine CP or extension CP in a tdd system, if the subframe is subframe 1, terminal is determined
OFDM symbol shared in the descender region of subframe 1 is PMCH in a tdd system：7680T in subframe 1sAfter time point
Continuous N OFDM symbol, or first OFDM symbol and 7680T that original position starts in subframe 1sAfter time point
- 1 OFDM symbol of continuous N；If the subframe is subframe 6, terminal determines PMCH institutes in the descender region of subframe 6 in a tdd system
The OFDM symbol of occupancy is：7680T in subframe 6sContinuous N OFDM symbol after time point, or original position in subframe 6
First OFDM symbol and 7680T starteds- 1 OFDM symbol of continuous N after time point；Or,
When master sync signal is using extension CP in a tdd system, if the subframe is subframe 1, terminal determines PMCH in TDD
OFDM symbol shared in the descender region of subframe 1 is in system：The continuous N OFDM symbols that original position starts in subframe 1
Number, wherein resource unit does not map PMCH where master sync signal（Do not received on resource unit where master sync signal
PMCH）；If the subframe is subframe 6, terminal determines PMCH OFDM shared in the descender region of subframe 6 in a tdd system
Symbol is：The continuous N OFDM symbol that original position starts in subframe 6, wherein resource unit does not reflect where master sync signal
Penetrate PMCH（PMCH is not being received where master sync signal on resource unit）.
Specifically, terminal can be in the complete of OFDM symbol shared in the descender region of the subframe PMCH in step 32
On portion's frequency band or partial-band, the PMCH that network side equipment is sent is received.
Preferably, subframe 1 in the subframe is TDD system, in step 32 terminal PMCH subframe 1 descender region
In shared OFDM symbol partial-band on when receiving the PMCH that network side equipment is sent, terminal can also be according to such as lower section
Method receives the E-PDCCH or PDSCH that network side equipment is sent：
When master sync signal is using routine CP or extension CP in a tdd system, terminal 7680T in subframe 1sTime point
On the frequency band not taken by PMCH of continuous N number of OFDM symbol afterwards, receive network side equipment send E-PDCCH or
PDSCH, or first OFDM symbol starting of terminal original position in subframe 1 and 7680TsIt is continuous after time point
On the frequency band not taken by PMCH of N number of OFDM symbol, E-PDCCH or PDSCH that network side equipment is sent are received, wherein,Or
When master sync signal is using extension CP in a tdd system, N number of OFDM that terminal original position in subframe 1 starts
On the frequency band not taken by PMCH of symbol, E-PDCCH or PDSCH that network side equipment is sent are received；Wherein in main synchronous letter
The resource unit at number place does not map E-PDCCH or PDSCH（E- is not received in the resource unit where master sync signal
PDCCH or PDSCH）,
Likewise, subframe 6 in the subframe is TDD system, in step 32 terminal PMCH subframe 6 descender region
In shared OFDM symbol partial-band on when receiving the PMCH that network side equipment is sent, terminal can also be according to such as lower section
Method receives the E-PDCCH or PDSCH that network side equipment is sent：
When master sync signal is using routine CP or extension CP in a tdd system, terminal 7680T in subframe 6sTime point
On the frequency band not taken by PMCH of continuous N number of OFDM symbol afterwards, receive network side equipment send E-PDCCH or
PDSCH, or first OFDM symbol starting of terminal original position in subframe 6 and 7680TsIt is continuous after time point
On the frequency band not taken by PMCH of N number of OFDM symbol, E-PDCCH or PDSCH that network side equipment is sent are received, wherein,Or
When master sync signal is using extension CP in a tdd system, N number of OFDM that terminal original position in subframe 6 starts
On the frequency band not taken by PMCH of symbol, E-PDCCH or PDSCH that network side equipment is sent are received；Wherein in main synchronous letter
The resource unit at number place does not map E-PDCCH or PDSCH（E- is not received in the resource unit where master sync signal
PDCCH or PDSCH）,
Preferably, in terminal on the partial-band in PMCH OFDM symbols shared in the descender region of the subframe
Receive before the PMCH that network side equipment is sent, terminal can receive the position for the partial-band that network side equipment is sent by signaling
Confidence is ceased, and the position for the partial-band that PMCH takes is determined according to the positional information.
Specifically, terminal can be by the positional information of broadcast signaling or high-level signaling received quantity M and partial-band.
Preferably, before step 32, terminal can also receive the instruction of the network side equipment transmission terminal in the subframe
Upper reception PMCH configuration signal.Terminal receives the configuration signal and just receives PMCH in the subframe, if being not received by this
Configuration signal then receives PMCH according to prior art.
Further, after step 30, before step 32, terminal can determine the transmission carried in PMCH according to quantity M
Block size；Accordingly, in step 32 terminal can in PMCH OFDM symbols shared in the descender region of the subframe, according to
The transport block size of determination receives the PMCH that network side equipment is sent.Here, determine that the transmission block carried in PMCH is big according to quantity M
Small method is specifically as follows：It is first according to equation below and determines parameter NPRB：
Then according to NPRBThe predefined transport block size form of lookup standard（TBS table）, obtain the transmission carried in current PMCH
Block size, whereinFor the quantity of the PRB shared by transmission PMCH.
Method provided in an embodiment of the present invention can be applied on NCT.
With reference to specific embodiment, the present invention will be described：
Embodiment one：
In the present embodiment, the master sync signal in TDD system is using routine CP；
Base station side：
Step one：Base station determines the quantity M of PMCH OFDM symbols shared in the descender region of subframe 1 or subframe 6,
And quantity M is sent to by terminal by signaling；
Step 2：Base station determines that PMCH OFDM shared in the descender region of subframe 1 or subframe 6 are accorded with according to quantity M
Number；
Step 3：In the OFDM symbol shared in descender regions of the PMCH in subframe 1 or subframe 6 of base station, to terminal
Send PMCH；
Here, the 7680T in subframe 1 or subframe 6sPMCH is not mapped in OFDM symbol before time point, PMCH reflects
It is mapped to 7680TsContinuous N OFDM symbol after time point（Extend CP）On, as shown in fig. 4 a, M=M1 or M2 in figure.If
Current carrier can be matched somebody with somebody using TDD uplink/downlink configuration 3 or TDD uplink/downlink configuration 4 or TDD uplink/downlink configuration 5, then M2 maximums
9 are set to, as shown in Figure 4 b.
When PMCH only takes up partial-band transmission, then also in other frequency band transmissions E-PDCCH or PDSCH in this step,
E-PDCCH or PDSCH are mapped to 7680TsContinuous N number of OFDM symbol after time point（Extend CP）On, whereinAs shown in Fig. 4 c and Fig. 4 d, for subframe 1, TDL=TDwPTS_SF1, for subframe 6, TDL=
TDwPTS_SF6。
End side：
Step one：Terminal receives PMCH that network side equipment sent by signaling in subframe 1 or the descender region of subframe 6
In shared OFDM symbol quantity M after, according to shared by quantity M determines PMCH in the descender region of subframe 1 or subframe 6
OFDM symbol；
Step 2：In terminal OFDM symbol shared in descender regions of the PMCH in subframe 1 or subframe 6, net is received
The PMCH that network side apparatus is sent.
Here, the 7680T in subframe 1 or subframe 6sPMCH is not received in OFDM symbol before time point,
7680·TsContinuous N OFDM symbol after time point（Extend CP）Upper reception PMCH, as shown in fig. 4 a, in figure M=M1 or
M2.If current carrier can using TDD uplink/downlink configuration 3 or TDD uplink/downlink configuration 4 or TDD uplink/downlink configuration 5, M2 maximums
To be configured to 9, as shown in Figure 4 b.
When PMCH only take up partial-band transmission when, then in this step also on other frequency bands receive E-PDCCH or
PDSCH, specifically in 7680TsContinuous N number of OFDM symbol after time point（Extend CP）Upper reception E-PDCCH or PDSCH,
WhereinAs shown in Fig. 4 c and Fig. 4 d, for subframe 1, TDL=TDwPTS_SF1, for subframe 6, TDL=
TDwPTS_SF6。
Embodiment two：
In the present embodiment, the master sync signal in TDD system is using routine CP or extension CP；
Base station side：
Step one：Base station determines the quantity M of PMCH OFDM symbols shared in the descender region of subframe 1 or subframe 6,
And quantity M is sent to by terminal by signaling；
Step 2：Base station determines that PMCH OFDM shared in the descender region of subframe 1 or subframe 6 are accorded with according to quantity M
Number；
Step 3：In the OFDM symbol shared in descender regions of the PMCH in subframe 1 or subframe 6 of base station, to terminal
Send PMCH；
Here, PMCH is mapped in two parts resource, Part I is that the original position of subframe 1 or subframe 6 starts
First OFDM symbol（Extend CP）, Part II is 7680Ts- 1 OFDM symbol of continuous N after time point（Extension
CP）On, as shown in Figure 5 a, M=M1 or M2 in figure.If current carrier uses TDD uplink/downlink configuration 3 or TDD uplink/downlink configuration 4
Or TDD uplink/downlink configures 5, then M2 maximums are configurable to 10, as shown in Figure 5 b.Wherein between Part I and Part II,
Other signal/channels are not transmitted in addition to master sync signal.
When PMCH only takes up partial-band transmission, then also in other frequency band transmissions E-PDCCH or PDSCH in this step,
E-PDCCH or PDSCH are also mapped onto in two parts resource, Part I be subframe 1 or subframe 6 original position start first
Individual OFDM symbol（Extend CP）, Part II is 7680TsContinuous N number of OFDM symbol after time point（Extend CP）On, its
InAs shown in figures 5 c and 5d, for subframe 1, TDL=TDwPTS_SF1, for subframe 6, TDL=
TDwPTS_SF6。
End side：
Step one：Terminal receives PMCH that network side equipment sent by signaling in subframe 1 or the descender region of subframe 6
In shared OFDM symbol quantity M after, according to shared by quantity M determines PMCH in the descender region of subframe 1 or subframe 6
OFDM symbol；
Step 2：In terminal OFDM symbol shared in descender regions of the PMCH in subframe 1 or subframe 6, net is received
The PMCH that network side apparatus is sent.
Here, receive PMCH in two parts resource, Part I be subframe 1 or subframe 6 original position start
One OFDM symbol（Extend CP）, Part II is 7680Ts- 1 OFDM symbol of continuous N after time point（Extend CP）
On, as shown in Figure 5 a, M=M1 or M2 in figure.If current carrier using TDD uplink/downlink configuration 3 or TDD uplink/downlink configuration 4 or
TDD uplink/downlink configures 5, then M2 maximums are configurable to 10, as shown in Figure 5 b.
When PMCH only takes up partial-band transmission, then also in other band receptions E-PDCCH or PDSCH in this step,
E-PDCCH or PDSCH is specifically also received in two parts resource, Part I is that the original position of subframe 1 or subframe 6 starts
First OFDM symbol（Extend CP）, Part II is 7680TsContinuous N number of OFDM symbol after time point（Extend CP）
On, whereinAs shown in figures 5 c and 5d, for subframe 1, TDL=TDwPTS_SF1, for subframe 6, TDL=
TDwPTS_SF6。
Embodiment three：
In the present embodiment, the master sync signal in TDD system is using extension CP；
Base station side：
Step one：Base station determines the quantity M of PMCH OFDM symbols shared in the descender region of subframe 1 or subframe 6,
And quantity M is sent to by terminal by signaling；
Step 2：Base station determines that PMCH OFDM shared in the descender region of subframe 1 or subframe 6 are accorded with according to quantity M
Number；
Step 3：In the OFDM symbol shared in descender regions of the PMCH in subframe 1 or subframe 6 of base station, to terminal
Send PMCH；
Here, PMCH is mapped in the continuous N OFDM symbol that the original position of subframe 1 or subframe 6 starts, wherein main same
Resource unit where step signal does not map PMCH, as shown in Figure 6 a, M=M1 or M2 in figure.If current carrier uses TDD uplink/downlink
Configuration 3 or TDD uplink/downlink configuration 4 or TDD uplink/downlink configure 5, then M2 maximums are configurable to 12, as shown in Figure 6 b.It is more excellent
Ground, base station should preferentially configure non-subframe 0,1,5,6 as PMCH and transmit subframe, if the configuration transmission PMCH of subframe 1,6, represents it
His descending sub frame all has been used to PMCH transmission, then system is fixed does not result in the obvious wasting of resources using extension CP yet.
When PMCH only takes up partial-band transmission, then also in other frequency band transmissions E-PDCCH or PDSCH in this step,
E-PDCCH or PDSCH are mapped in continuous N number of OFDM symbol that the original position of subframe 1 or subframe 6 starts, wherein main synchronization
It is the OFDM symbol number in descender region in subframe 1 or subframe 6 that resource unit where signal, which does not map E-PDCCH or PDSCH, N,
As shown in figs. 6 c and 6d.
End side：
Step one：Terminal receives PMCH that network side equipment sent by signaling in subframe 1 or the descender region of subframe 6
In shared OFDM symbol quantity M after, according to shared by quantity M determines PMCH in the descender region of subframe 1 or subframe 6
OFDM symbol；
Step 2：In terminal OFDM symbol shared in descender regions of the PMCH in subframe 1 or subframe 6, net is received
The PMCH that network side apparatus is sent.
Here, the original position of subframe 1 or subframe 6 start it is continuous N OFDM symbol, except where master sync signal
PMCH is received on other resource units outside resource unit, as shown in Figure 6 a, M=M1 or M2 in figure.If current carrier uses TDD
Uplink/downlink configuration 3 or TDD uplink/downlink configuration 4 or TDD uplink/downlink configure 5, then M2 maximums are configurable to 12, such as Fig. 6 b institutes
Show.
When PMCH only take up partial-band transmission when, then in this step also on other frequency bands receive E-PDCCH or
PDSCH, specifically the original position of subframe 1 or subframe 6 start it is continuous N number of OFDM symbol, except where master sync signal provide
It is the OFDM in descender region in subframe 1 or subframe 6 that E-PDCCH or PDSCH, N are received on other resource units outside source unit
Symbolic number, as shown in figs. 6 c and 6d.
Referring to Fig. 7, the embodiment of the present invention provides a kind of base station, and the base station includes：
Symbolic number notification unit 70, the orthogonal frequency division multiplexing shared in the descender region of a subframe for determining PMCH
With the quantity M of OFDM symbol, and the quantity M is sent to by terminal by signaling, whereinTDLTo be described
The time span of descender region in subframe, Ts=1/30720ms；
Symbol determining unit 71 is taken, for determining PMCH institutes in the descender region of the subframe according to the quantity M
The OFDM symbol of occupancy；
First channel transmitting element 72, for the OFDM symbol in the subframe, PMCH is sent to terminal.
Further, the occupancy symbol determining unit 71 is used for：
When master sync signal is using conventional cyclic prefix CP or extension CP in TDD system, determine that PMCH exists
OFDM symbol shared in the descender region of subframe 1 or subframe 6 is in TDD system：7680T in subframe 1 or subframe 6sWhen
Between put after continuous N OFDM symbol, or first OFDM symbol that original position starts in subframe 1 or subframe 6 with
7680·Ts- 1 OFDM symbol of continuous N after time point；Or,
When master sync signal is using extension CP in a tdd system, determine PMCH in a tdd system under subframe 1 or subframe 6
Shared OFDM symbol is in row region：The continuous N OFDM symbol that original position starts in subframe 1 or subframe 6, wherein
Resource unit where master sync signal does not map PMCH.
Further, the first channel transmitting element 72 is used for：
On the whole frequency bands or partial-band of the OFDM symbol in the subframe, PMCH is sent to terminal.
Further, the system also includes：
Second channel transmitting element 73, in the first channel transmitting element 72 subframe 1 or subframe in a tdd system
When sending PMCH to terminal on the partial-band of the OFDM symbol in 6, master sync signal is using routine CP in a tdd system
Or during extension CP, the 7680T in subframe 1 or subframe 6sContinuous N number of OFDM symbol after time point is not taken by PMCH
Frequency band on, send enhanced Physical Downlink Control Channel E-PDCCH or Physical Downlink Shared Channel PDSCH to terminal, or
Original position starts in subframe 1 or subframe 6 first OFDM symbol and 7680TsContinuous N number of OFDM after time point
On the frequency band not taken by PMCH of symbol, E-PDCCH or PDSCH is sent to terminal, wherein,Or
Person
In a tdd system master sync signal using extension CP when, in subframe 1 or subframe 6 original position start it is N number of
On the frequency band not taken by PMCH of OFDM symbol, E-PDCCH or PDSCH is sent to terminal；Wherein where master sync signal
Resource unit do not map E-PDCCH or PDSCH,
Further, the base station also includes：
Position informing unit 74, for the OFDM symbol in the first channel transmitting element 72 in the subframe
Partial-band on to terminal send PMCH when, the positional information of the partial-band is sent to terminal by signaling.
Further, the signaling is broadcast signaling or high-level signaling.
Further, the base station also includes：
Indicating member 75 is received, for the OFDM symbol in the first channel transmitting element 72 in the subframe
On to terminal send PMCH before, to terminal send configuration signaling, PMCH is received in the subframe with instruction terminal.
Further, the base station also includes：Transmission block determining unit 76, for being determined in the symbolic number determining unit 70
After the quantity M, the first channel transmitting element 72 sends in the OFDM symbol in the subframe to terminal
Before PMCH, the transport block size for determining to carry in PMCH according to the quantity M；
The first channel transmitting element 72 is used for：
In the OFDM symbol in the subframe, PMCH is sent to terminal according to the transport block size.
Referring to Fig. 8, the embodiment of the present invention also provides a kind of terminal, and the terminal includes：
Symbolic number determining unit 80, the PMCH sent for receiving network side equipment by signaling is descending subframe
The quantity M of shared orthogonal frequency division multiplex OFDM symbol in region, whereinTDLFor in the subframe
The time span of descender region, Ts=1/30720ms；
Symbol determining unit 81 is taken, for determining PMCH institutes in the descender region of the subframe according to the quantity M
The OFDM symbol of occupancy；
First channel receiving unit 82, for the OFDM symbol in the subframe, receives network side equipment hair
The PMCH sent.
Further, the occupancy symbol determining unit 81 is used for：
When master sync signal is using conventional cyclic prefix CP or extension CP in TDD system, determine that PMCH exists
OFDM symbol shared in the descender region of subframe 1 or subframe 6 is in TDD system：7680T in subframe 1 or subframe 6sWhen
Between put after continuous N OFDM symbol, or first OFDM symbol that original position starts in subframe 1 or subframe 6 with
7680·Ts- 1 OFDM symbol of continuous N after time point；Or,
When master sync signal is using extension CP in a tdd system, determine PMCH in a tdd system under subframe 1 or subframe 6
Shared OFDM symbol is in row region：The continuous N OFDM symbol that original position starts in subframe 1 or subframe 6, wherein
Resource unit where master sync signal does not map PMCH.
Further, the first channel receiving unit 82 is used for：The whole of the OFDM symbol in the subframe
On frequency band or partial-band, the PMCH that network side equipment is sent is received.
Further, the terminal also includes：
Second channel receiving unit 83, for the first channel receiving unit 82 TDD system subframe 1 or subframe
When the PMCH that network side equipment is sent is received on the partial-band of the OFDM symbol in 6, master sync signal in a tdd system
During using conventional CP or extension CP, the 7680T in middle subframe 1 or subframe 6sContinuous N number of OFDM symbol after time point
On the frequency band not taken by PMCH, enhanced Physical Downlink Control Channel E-PDCCH or physics that network side equipment is sent are received
DSCH Downlink Shared Channel PDSCH, or first OFDM symbol and 7680T that original position starts in subframe 1 or subframe 6s
On the frequency band not taken by PMCH of continuous N number of OFDM symbol after time point, the E-PDCCH that network side equipment is sent is received
Or PDSCH, wherein,Or
In a tdd system master sync signal using extension CP when, in subframe 1 or subframe 6 original position start it is N number of
On the frequency band not taken by PMCH of OFDM symbol, E-PDCCH or PDSCH that network side equipment is sent are received；Wherein main same
Resource unit where step signal does not map E-PDCCH or PDSCH,
Further, the terminal also includes：
Position receiving unit 84, for the OFDM symbol in the first channel receiving unit 82 in the subframe
Partial-band on receive the PMCH that network side equipment is sent before, receive the part that is sent by signaling of network side equipment
The positional information of frequency band.
Further, the signaling is broadcast signaling or high-level signaling.
Further, the terminal also includes：
Receiving unit 85 is indicated, for the OFDM symbol in the first channel receiving unit 82 in the subframe
Before the upper PMCH for receiving network side equipment transmission, the instruction of the reception network side equipment transmission terminal is received in the subframe
PMCH configuration signal.
Further, the terminal also includes：
Transmission block determining unit 86, for receiving the quantity M in the symbolic number determining unit 80 after, described
One channel receiving unit 82 is received in the OFDM symbol in the subframe before the PMCH of network side equipment transmission, according to
The quantity M determines the transport block size carried in PMCH；
The first channel receiving unit 82 is used for：
In the OFDM symbol in the subframe, receive what network side equipment was sent according to the transport block size
PMCH。
To sum up, beneficial effects of the present invention include：
In scheme provided in an embodiment of the present invention, network side equipment determines that PMCH is shared in the descender region of a subframe
The quantity M of OFDM symbol, and quantity M is sent to by terminal by signaling, whereinTDLFor the son
The time span of descender region in frame, Ts=1/30720ms；Network side equipment determines PMCH in the subframe according to quantity M
Shared OFDM symbol in descender region, then in the OFDM symbol in the burst, PMCH is sent to terminal；Terminal connects
The quantity M that network side equipment is sent is received, determines that PMCH OFDM shared in the descender region of the subframe are accorded with according to quantity M
Number, and in the OFDM symbol in the burst, receive the PMCH that network side equipment is sent.It can be seen that this application provides a kind of new
PMCH transmission methods, the quantity M of OFDM symbol shared in the descender region of a subframe PMCH is spirit in this method
Work is variable, and OFDM symbol shared in the descender region of a subframe PMCH is also flexibility and changeability, with prior art
In all descender regions for being always held in descending sub frame in addition to PDCCH region all transmit PMCH and compare, passed in this programme
Defeated PMCH flexibility ratio is higher.And, can be with extended wireless frame when this method is applied in the subframe 1 or subframe 6 of TDD system
The interior sub-frame number for being used to transmit MBMS, and then improve the resource utilization of TDD system.
The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow of computer program product
Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (32)
1. a kind of Physical Multicast Channel PMCH transmission methods, it is characterised in that this method includes：
Network side equipment determines the number of PMCH orthogonal frequency division multiplex OFDM symbols shared in the descender region of a subframe
M is measured, and the quantity M is sent to by terminal by signaling, whereinTDLFor the descender in the subframe
The time span in domain, Ts=1/30720ms；
Network side equipment determines PMCH OFDM symbols shared in the descender region of the subframe according to the quantity M；
Network side equipment sends PMCH in the OFDM symbol in the subframe to terminal.
2. the method as described in claim 1, it is characterised in that network side equipment determines PMCH described according to the quantity M
Shared OFDM symbol, is specifically included in the descender region of subframe：
Network side equipment determines PMCH OFDM shared in the descender region of subframe 1 or subframe 6 in TDD system
Symbol is：7680T in subframe 1 or subframe 6sOriginated in continuous N OFDM symbol after time point, or subframe 1 or subframe 6
First OFDM symbol and 7680T that position startss- 1 OFDM symbol of continuous N after time point；Or,
When master sync signal uses extended cyclic prefix CP in a tdd system, network side equipment determines that PMCH is sub in a tdd system
Shared OFDM symbol is in the descender region of frame 1 or subframe 6：The continuous N that original position starts in subframe 1 or subframe 6
OFDM symbol, wherein resource unit does not map PMCH where master sync signal.
3. the method as described in claim 1, it is characterised in that the OFDM symbol of the network side equipment in the subframe
On whole frequency bands or partial-band, PMCH is sent to terminal.
4. method as claimed in claim 3, it is characterised in that the subframe is the subframe 1 or subframe 6 in TDD system, network
When sending PMCH to terminal on the partial-band of the OFDM symbol of the side apparatus in subframe 1 or subframe 6, further comprise：
Network side equipment 7680T in subframe 1 or subframe 6sContinuous N number of OFDM symbol after time point is not accounted for by PMCH
On frequency band, enhanced Physical Downlink Control Channel E-PDCCH or Physical Downlink Shared Channel PDSCH is sent to terminal, or
First OFDM symbol and 7680T that network side equipment original position in subframe 1 or subframe 6 startssAfter time point
Continuous N number of OFDM symbol the frequency band not taken by PMCH on, to terminal send E-PDCCH or PDSCH, wherein,Or
When master sync signal is using extension CP in a tdd system, network side equipment original position in subframe 1 or subframe 6 starts
N number of OFDM symbol the frequency band not taken by PMCH on, to terminal send E-PDCCH or PDSCH；Wherein in master sync signal
The resource unit at place does not map E-PDCCH or PDSCH,
5. method as claimed in claim 3, it is characterised in that in the OFDM symbol of the network side equipment in the subframe
Partial-band on to terminal send PMCH when, further comprise：
The positional information of the partial-band is sent to terminal by network side equipment by signaling.
6. the method as described in claim 1 or 5, it is characterised in that the signaling is broadcast signaling or high-level signaling.
7. the method as described in any in claim 1-5, it is characterised in that network side equipment in the subframe described in
Before sending PMCH to terminal in OFDM symbol, further comprise：
Network side equipment receives PMCH with instruction terminal to terminal send configuration signaling in the subframe.
8. the method as described in any in claim 1-5, it is characterised in that after network side equipment determines the quantity M,
Before sending PMCH to terminal in the OFDM symbol in the subframe, further comprise：
The transport block size that network side equipment determines to carry in PMCH according to the quantity M；
The network side equipment sends PMCH to terminal, specifically included in the OFDM symbol in the subframe：
Network side equipment sends PMCH according to the transport block size in the OFDM symbol in the subframe to terminal.
9. a kind of Physical Multicast Channel PMCH transmission methods, it is characterised in that this method includes：
Orthogonal frequencies of the PMCH that terminal reception network side equipment is sent by signaling shared by the descender region of a subframe
Divide the quantity M of multiplexing OFDM symbol, whereinTDLFor the time span of the descender region in the subframe, Ts
=1/30720ms；
Terminal determines PMCH OFDM symbols shared in the descender region of the subframe according to the quantity M；
Terminal receives the PMCH that network side equipment is sent in the OFDM symbol in the subframe.
10. method as claimed in claim 9, it is characterised in that terminal determines PMCH in the subframe according to the quantity M
Shared OFDM symbol, is specifically included in descender region：
Terminal determines PMCH OFDM symbols shared in the descender region of subframe 1 or subframe 6 in TDD system
For：7680T in subframe 1 or subframe 6sOriginal position in continuous N OFDM symbol after time point, or subframe 1 or subframe 6
First OFDM symbol and 7680T starteds- 1 OFDM symbol of continuous N after time point；Or,
In a tdd system master sync signal use extended cyclic prefix CP when, terminal determine PMCH in a tdd system subframe 1 or
Shared OFDM symbol is in the descender region of subframe 6：The continuous N OFDM symbols that original position starts in subframe 1 or subframe 6
Number, wherein resource unit does not map PMCH where master sync signal.
11. method as claimed in claim 9, it is characterised in that the whole of the OFDM symbol of the terminal in the subframe
On frequency band or partial-band, the PMCH that network side equipment is sent is received.
12. method as claimed in claim 11, it is characterised in that the subframe is the subframe 1 or subframe 6 in TDD system,
When the PMCH that network side equipment is sent is received on the partial-band of the OFDM symbol of the terminal in subframe 1 or subframe 6, enter one
Step includes：
Terminal 7680T in subframe 1 or subframe 6sThe frequency not taken by PMCH of continuous N number of OFDM symbol after time point
Take, receive enhanced Physical Downlink Control Channel E-PDCCH or Physical Downlink Shared Channel that network side equipment is sent
PDSCH, or first OFDM symbol starting of terminal original position in subframe 1 or subframe 6 and 7680TsTime point it
On the frequency band not taken by PMCH of continuous N number of OFDM symbol afterwards, E-PDCCH or PDSCH that network side equipment is sent are received,
Wherein,Or
When master sync signal is using extension CP in a tdd system, it is N number of that terminal original position in subframe 1 or subframe 6 starts
On the frequency band not taken by PMCH of OFDM symbol, E-PDCCH or PDSCH that network side equipment is sent are received；Wherein main same
Resource unit where step signal does not map E-PDCCH or PDSCH,
13. method as claimed in claim 11, it is characterised in that in the portion of the OFDM symbol of the terminal in the subframe
Receive before the PMCH that network side equipment is sent, further comprise in split-band：
Terminal receives the positional information for the partial-band that network side equipment is sent by signaling.
14. the method as described in claim 9 or 13, it is characterised in that the signaling is broadcast signaling or high-level signaling.
15. the method as described in any in claim 9-13, it is characterised in that in the OFDM of the terminal in the subframe
Receive before the PMCH that network side equipment is sent, further comprise on symbol：
The instruction of the terminal reception network side equipment transmission terminal receives PMCH configuration signal in the subframe.
16. the method as described in any in claim 9-13, it is characterised in that after terminal receives the quantity M, in institute
State before the PMCH that network side equipment is sent is received in the OFDM symbol in subframe, further comprise：
The transport block size that terminal determines to carry in PMCH according to the quantity M；
The terminal receives the PMCH of network side equipment transmission in the OFDM symbol in the subframe, specifically include：
Terminal receives what network side equipment was sent in the OFDM symbol in the subframe according to the transport block size
PMCH。
17. a kind of base station, it is characterised in that the base station includes：
Symbolic number notification unit, the orthogonal frequency division multiplex OFDM shared in the descender region of a subframe for determining PMCH
The quantity M of symbol, and the quantity M is sent to by terminal by signaling, whereinTDLFor in the subframe
Descender region time span, Ts=1/30720ms；
Take symbol determining unit, for determined according to the quantity M PMCH in the descender region of the subframe it is shared
OFDM symbol；
First channel transmitting element, for the OFDM symbol in the subframe, PMCH is sent to terminal.
18. base station as claimed in claim 17, it is characterised in that the occupancy symbol determining unit is used for：
Determine that PMCH OFDM symbols shared in the descender region of subframe 1 or subframe 6 in TDD system are：Son
7680T in frame 1 or subframe 6sOriginal position starts in continuous N OFDM symbol after time point, or subframe 1 or subframe 6
First OFDM symbol and 7680Ts- 1 OFDM symbol of continuous N after time point；Or,
When master sync signal uses extended cyclic prefix CP in a tdd system, PMCH subframe 1 or subframe 6 in a tdd system are determined
Descender region in shared OFDM symbol be：The continuous N OFDM symbol that original position starts in subframe 1 or subframe 6, its
In the resource unit where master sync signal do not map PMCH.
19. base station as claimed in claim 17, it is characterised in that the first channel transmitting element is used for：
On the whole frequency bands or partial-band of the OFDM symbol in the subframe, PMCH is sent to terminal.
20. base station as claimed in claim 19, it is characterised in that the base station also includes：
Second channel transmitting element, for the institute in the first channel transmitting element in a tdd system subframe 1 or subframe 6
When stating on the partial-band of OFDM symbol to terminal transmission PMCH, the 7680T in subframe 1 or subframe 6sCompany after time point
On the frequency band not taken by PMCH for continuing N number of OFDM symbol, to terminal send enhanced Physical Downlink Control Channel E-PDCCH or
Physical Downlink Shared Channel PDSCH, or original position starts in subframe 1 or subframe 6 first OFDM symbol and
7680·TsOn the frequency band not taken by PMCH of continuous N number of OFDM symbol after time point, to terminal send E-PDCCH or
PDSCH, wherein,Or
When master sync signal is using extension CP in a tdd system, N number of OFDM symbols that original position starts in subframe 1 or subframe 6
Number the frequency band not taken by PMCH on, to terminal send E-PDCCH or PDSCH；Wherein in the resource where master sync signal
Unit does not map E-PDCCH or PDSCH,
21. base station as claimed in claim 19, it is characterised in that the base station also includes：
Position informing unit, the part frequency for the OFDM symbol in the first channel transmitting element in the subframe
When taking to terminal transmission PMCH, the positional information of the partial-band is sent to terminal by signaling.
22. the base station as described in claim 17 or 21, it is characterised in that the signaling is broadcast signaling or high-level signaling.
23. the base station as described in any in claim 17-21, it is characterised in that the base station also includes：
Receive indicating member, for the first channel transmitting element in the OFDM symbol in the subframe to terminal
Send before PMCH, to terminal send configuration signaling, PMCH is received in the subframe with instruction terminal.
24. the base station as described in any in claim 17-21, it is characterised in that the base station also includes：
Transmission block determining unit, for determining the quantity M in the symbolic number determining unit after, first channel send
Before unit sends PMCH in the OFDM symbol in the subframe to terminal, determine to hold in PMCH according to the quantity M
The transport block size of load；
The first channel transmitting element is used for：
In the OFDM symbol in the subframe, PMCH is sent to terminal according to the transport block size.
25. a kind of terminal, it is characterised in that the terminal includes：
Symbolic number determining unit, for receiving PMCH that network side equipment sent by signaling in the descender region of a subframe
The quantity M of shared orthogonal frequency division multiplex OFDM symbol, whereinTDLFor the descender in the subframe
The time span in domain, Ts=1/30720ms；
Take symbol determining unit, for determined according to the quantity M PMCH in the descender region of the subframe it is shared
OFDM symbol；
First channel receiving unit, for the OFDM symbol in the subframe, receives what network side equipment was sent
PMCH。
26. terminal as claimed in claim 25, it is characterised in that the occupancy symbol determining unit is used for：
Determine that PMCH OFDM symbols shared in the descender region of subframe 1 or subframe 6 in TDD system are：Son
7680T in frame 1 or subframe 6sOriginal position starts in continuous N OFDM symbol after time point, or subframe 1 or subframe 6
First OFDM symbol and 7680Ts- 1 OFDM symbol of continuous N after time point；Or,
When master sync signal uses extended cyclic prefix CP in a tdd system, PMCH subframe 1 or subframe 6 in a tdd system are determined
Descender region in shared OFDM symbol be：The continuous N OFDM symbol that original position starts in subframe 1 or subframe 6, its
In the resource unit where master sync signal do not map PMCH.
27. terminal as claimed in claim 25, it is characterised in that the first channel receiving unit is used for：In the subframe
In the OFDM symbol whole frequency bands or partial-band on, receive network side equipment send PMCH.
28. terminal as claimed in claim 27, it is characterised in that the terminal also includes：
Second channel receiving unit, for the institute in the first channel receiving unit in the subframe 1 or subframe 6 of TDD system
When stating the PMCH that network side equipment transmission is received on the partial-band of OFDM symbol, the 7680T in subframe 1 or subframe 6sTime
On the frequency band not taken by PMCH of continuous N number of OFDM symbol after point, the enhanced physics that network side equipment is sent is received
Down control channel E-PDCCH or Physical Downlink Shared Channel PDSCH, or original position starts in subframe 1 or subframe 6
One OFDM symbol and 7680TsOn the frequency band not taken by PMCH of continuous N number of OFDM symbol after time point, connect
E-PDCCH or PDSCH that network side equipment is sent are received, wherein,Or
When master sync signal is using extension CP in a tdd system, N number of OFDM symbols that original position starts in subframe 1 or subframe 6
Number the frequency band not taken by PMCH on, receive network side equipment send E-PDCCH or PDSCH；Wherein in master sync signal
The resource unit at place does not map E-PDCCH or PDSCH,
29. terminal as claimed in claim 27, it is characterised in that the terminal also includes：
Position receiving unit, the part frequency for the OFDM symbol in the first channel receiving unit in the subframe
Take before receiving the PMCH that network side equipment is sent, receive the position for the partial-band that network side equipment is sent by signaling
Confidence ceases.
30. the terminal as described in claim 25 or 29, it is characterised in that the signaling is broadcast signaling or high-level signaling.
31. the terminal as described in any in claim 25 or 29, it is characterised in that the terminal also includes：
Receiving unit is indicated, for receiving net in the OFDM symbol in the subframe in the first channel receiving unit
Before the PMCH that network side apparatus is sent, the instruction of the reception network side equipment transmission terminal receives matching somebody with somebody for PMCH in the subframe
Confidence makes.
32. the terminal as described in any in claim 25 or 29, it is characterised in that the terminal also includes：
Transmission block determining unit, for being connect after the symbolic number determining unit reception quantity M, in first channel
Unit is received in the OFDM symbol in the subframe before the PMCH of reception network side equipment transmission, according to the quantity M
Determine the transport block size carried in PMCH；
The first channel receiving unit is used for：
In the OFDM symbol in the subframe, the PMCH that network side equipment is sent is received according to the transport block size.
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| CN101183920A (en) * | 2007-12-17 | 2008-05-21 | 中兴通讯股份有限公司 | Method and apparatus for mapping PHICH to physical subcarrier |
| CN101577563A (en) * | 2008-05-07 | 2009-11-11 | 大唐移动通信设备有限公司 | Method, device and base station for transmitting PMCH in special subframe |
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| CN101577563A (en) * | 2008-05-07 | 2009-11-11 | 大唐移动通信设备有限公司 | Method, device and base station for transmitting PMCH in special subframe |
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