[go: up one dir, main page]

WO2010108313A1 - Procédé et appareil d'attribution de canaux - Google Patents

Procédé et appareil d'attribution de canaux Download PDF

Info

Publication number
WO2010108313A1
WO2010108313A1 PCT/CN2009/070951 CN2009070951W WO2010108313A1 WO 2010108313 A1 WO2010108313 A1 WO 2010108313A1 CN 2009070951 W CN2009070951 W CN 2009070951W WO 2010108313 A1 WO2010108313 A1 WO 2010108313A1
Authority
WO
WIPO (PCT)
Prior art keywords
phich
component carrier
channel
uplink
identifier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2009/070951
Other languages
English (en)
Chinese (zh)
Inventor
陈小波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN200980000105.4A priority Critical patent/CN102124715B/zh
Priority to PCT/CN2009/070951 priority patent/WO2010108313A1/fr
Publication of WO2010108313A1 publication Critical patent/WO2010108313A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

Definitions

  • the embodiments of the present invention relate to the field of wireless communications technologies, and in particular, to a channel allocation method and apparatus. Background technique
  • the data receiver needs to feed back the acknowledgement/acknowledgement (ACK/NACK) information to the data sender to help confirm that the data was received correctly.
  • ACK/NACK acknowledgement/acknowledgement
  • the base station feeds back the ACK/NACK information of the uplink data reception to the user equipment through the PHICH channel.
  • the downlink of the 3GPP E-UTRA system adopts multiple access technology based on OFDMA (Orthogonal Frequency Division Multiple Access), and the physical layer control channel supported by the downlink direction includes PCFICH (Physical Control Format Indicator Channel). , physical layer control format indication channel), PHICH (Physical Hybrid ARQ Indicator Channel) and PDCCH (Physical Layer Downlink Control Channel), where PCFICH channel is used OFDM (Orthogonal Frequency Division Multiplexing) symbol number indicating that the PDCCH channel is occupied in the current subframe, the PHICH channel is used by the base station to feed back ACK/NACK information to the user equipment, and the PDCCH channel is used by the base station to notify the user of the physical layer.
  • PCFICH Physical Control Format Indicator Channel
  • PHICH Physical Hybrid ARQ Indicator Channel
  • PDCCH Physical Layer Downlink Control Channel
  • the basic time-frequency resource unit occupied by the PCFICH and PHICH channels is a REG (Resource Element Group), where the REG consists of 6 or 4 consecutive time-frequency resource grids in one OFDM symbol.
  • the time-frequency resource unit is a CCE (Control Channel Element), and one CCE is composed of 9 REGs.
  • the PCFICH channel occupies 4 REGs within the first OFDM symbol of the subframe. Within the OFDM symbol occupied by the control channel indicated by the PCFICH, all CCEs of the PDCCH channel are interleaved and mapped onto the full frequency band in units of REG. Short cyclic prefix sub-frame structure, one The group PHICH channel is composed of three REGs. Different PHICH channel groups are frequency-multiplexed by occupying different REGs. Each PHICH channel can be code-multiplexed with 8 PHICH channels, and each PHICH channel can carry 1 bit ACK/NACK. information.
  • the 3GPP E-UTRA system is also called the LTE (Long Term Evolution) system.
  • the interaction process between the user equipment and the base station is: the base station sends a physical layer uplink shared channel scheduling authorization command to the user equipment by using the downlink PDCCH channel, that is, the physical layer uplink shared channel is allocated to the user equipment;
  • the minimum label of the resource block occupied by the channel / 6 3 ⁇ 47 ⁇ and the 3-bit uplink demodulation pilot cyclic shift information A ⁇ are used to allocate a PHICH channel for the user equipment, where I L NDEX and n are physical layer uplink shared channels carried on the PDCCH channel
  • the user equipment uses the allocated physical layer uplink shared channel to send data packets to the base station; the base station receives the data packet through the physical layer uplink shared channel allocated for the user equipment, and determines whether it is correctly received; if the base station receives the data packet If yes, the ACK information is sent to the user equipment on the PHICH channel allocated for the user equipment, otherwise
  • a PHICH channel group is reserved for the allocation of the PHICH channel.
  • the PHICH channel allocated by the base station to the user is identified by a label pair U, where "represents the PHICH channel group label in which a PHICH channel is located and 0 ⁇ « ⁇ N ⁇ H - 1 H shows the orthogonal code number in the PHICH channel group.
  • the specific method for determining the PHICH channel label is:
  • the value of the uplink and downlink subframes is 0, and the physical layer uplink shared channel is located in subframe 4 or subframe 9, and the value is 0.
  • N eff takes 4 in the short cyclic prefix subframe structure and 2 in the long cyclic prefix subframe structure.
  • LTE-A Long Term Evolution-Advanced, Advanced Long Term Evolution
  • Carrier Aggregation technology is introduced to support wider bandwidth to meet the peak data rate requirements of the International Telecommunication Union for fourth-generation communication technologies.
  • the carrier aggregation technology two or more component carriers are aggregated together to obtain an LTE-A system with a wider transmission bandwidth, where each component carrier may be configured to be compatible with the LTE system.
  • the LTE user equipment supporting the LTE system can access the component carrier for data transmission and reception. Because the LTE system does not support the carrier aggregation technology, the LTE user equipment that accesses the component carrier cannot access other component carriers at the same time.
  • the LTE-A system the LTE-A user equipment can simultaneously access multiple uplink component carriers to transmit data according to its capability and service requirements. Therefore, the base station may need to use multiple PHICH channels to feed multiple multiple downlink component carriers. ACK/NACK information of the uplink component carrier. At this time, it is a solution to allocate multiple PHICH channels to the user equipment to feed back ACK/NACK information of multiple uplink component carriers while maintaining backward compatibility with the LTE system. problem. Summary of the invention
  • a main object of the embodiments of the present invention is to provide a channel allocation method and apparatus for maintaining backward compatibility with an L TE system and allocating a PHICH channel for a user equipment.
  • an embodiment of the present invention provides a channel allocation method under carrier aggregation, including: According to the correspondence between the uplink component carrier of the physical layer uplink shared channel and the downlink component carrier that transmits the PHICH channel preset for the user equipment, the physical layer hybrid automatic repeat request indication channel PHICH allocation mode of the long term evolution system is The PHICH corresponding to the physical layer uplink shared channel allocated by the paired uplink component carrier of the downlink component carrier;
  • the PHICH corresponding to the physical layer uplink shared channel scheduled by the unpaired uplink component carrier of the downlink component carrier is allocated by using the display signaling.
  • the embodiment of the invention further provides a channel allocation method, including:
  • the first level signaling in the second level signaling indicates the area identifier where the PHICH is located, and the second level signaling indicates the area identifier PHICH logo.
  • the embodiment of the present invention further provides a channel allocation apparatus under carrier aggregation, where the apparatus includes: a first allocation unit, configured to transmit an uplink component carrier of a physical layer uplink shared channel and transmit a PHICH channel according to a preset preset for a user equipment
  • a first allocation unit configured to transmit an uplink component carrier of a physical layer uplink shared channel and transmit a PHICH channel according to a preset preset for a user equipment
  • the corresponding relationship between the downlink component carriers, the physical layer hybrid automatic repeat request indication channel PHICH allocation mode of the long-term evolution system is the PHICH corresponding to the physical layer uplink shared channel scheduled by the paired uplink component carrier of the downlink component carrier;
  • a second allocation unit configured to allocate, by using the display signaling, a PHICH corresponding to the physical layer uplink shared channel scheduled by the unpaired uplink component carrier of the downlink component carrier.
  • the embodiment of the invention further provides a channel allocation device, including:
  • an allocating unit configured to allocate a corresponding PHICH to the physical layer uplink shared channel of the user equipment by using the second level signaling, where the first level signaling in the second level signaling indicates the area identifier where the PHICH is located, and the second level signaling indication The PHICH identifier in the area identifier.
  • the embodiment of the present invention provides a new channel allocation method and apparatus, and an embodiment of the present invention uses a mechanism adopted by the LTE system for allocating PHICH channel resources of a pair of uplink component carriers of a downlink component carrier, and the downlink component carrier is used.
  • the PHICH channel allocation of the unpaired uplink component carriers uses two levels of signaling to indicate the allocation of the PHICH channel, maintaining backward compatibility with the LTE system.
  • FIG. 1 is a flow chart of PHICH channel allocation according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of PHICH channel allocation under carrier aggregation according to another embodiment of the present invention.
  • FIG. 3 is a flowchart of PHICH channel allocation under carrier aggregation according to another embodiment of the present invention.
  • FIG. 5 is a schematic diagram of PHICH channel allocation in the scenario corresponding to FIG. 4;
  • FIG. 6 is a flowchart of PHICH channel transmission under carrier aggregation according to another embodiment of the present invention.
  • FIG. 7 is a schematic diagram of PHICH channel allocation in the scenario corresponding to FIG. 6;
  • FIG. 8 is a flowchart of PHICH channel allocation under carrier aggregation according to another embodiment of the present invention
  • FIG. 9 is a flowchart of PHICH channel allocation under carrier aggregation according to another embodiment of the present invention
  • FIG. 11 is a block diagram of a PHICH channel allocation apparatus according to an embodiment of the present invention
  • FIG. 12 is a block diagram of a PHICH channel allocation apparatus under carrier aggregation according to another embodiment of the present invention
  • FIG. 13 is a block diagram of a PHICH channel allocation apparatus under carrier aggregation according to another embodiment of the present invention. detailed description
  • the base station may need to use multiple PHICH channels on one downlink component carrier to feed back ACK/NACK information of multiple uplink component carriers, which is a problem not in the LTE system. If the PHICH channel mechanism of the LTE system is completely reused to allocate the PHICH channel for the physical layer uplink shared channel scheduled by multiple uplink component carriers on one downlink component carrier, the limitation introduced by the base station scheduler to avoid possible PHICH channel collision is significantly increased. And implementation complexity. Therefore, there is a need to solve the problem of allocating multiple PHICH channels to user equipment to feed back ACK/NACK information of multiple uplink component carriers while maintaining backward compatibility with the LTE system.
  • one solution is: separately reserve an independent PHICH channel resource pool for each uplink component carrier according to the LTE system manner;
  • the resource pool in which the PHICH channel is located is determined according to the uplink component carrier where the physical layer uplink shared channel is located, and the PHICH channel allocation mechanism of the LTE system is utilized in the resource pool: the resource block occupied by the physical layer uplink shared channel The minimum label / 3 ⁇ 4; and the 3-bit uplink demodulation pilot cyclic shift information ⁇ ⁇ are used to calculate the PHICH channel label pair.
  • the resource pool size reserved for each uplink component carrier is calculated by using the downlink component carrier bandwidth.
  • the uplink component carrier bandwidth may be different from each other, and the LTE is configured with multiple uplink component carriers.
  • the bandwidth of the physical layer uplink shared channel allocated by the -A user equipment is also relatively large. Therefore, the reservation by the carrier bandwidth is more likely to cause excessive reservation.
  • the number of uplink component carriers configured for the LTE-A user equipment is more than the number of downlink component carriers, since the PHICH channel resources are separately reserved for each component carrier, the extra reserved PHICH channel resource overhead is large. This problem is particularly acute in the case of user-specific carrier aggregation.
  • Example 1 Based on this, an embodiment of the present invention provides a channel allocation method under a new carrier aggregation and a corresponding base station. The invention will be described in detail below with reference to the accompanying drawings.
  • Example 1 Example 1
  • Embodiments of the present invention provide a channel allocation method.
  • the method allocates a physical layer hybrid automatic repeat request indication channel PHICH to the user equipment by using the second level signaling, where the first level signaling in the second level signaling indicates the area identifier in which the PHICH is located, and the second level signaling indicates the area identifier.
  • the PHICH logo inside.
  • the method may include the following steps:
  • Step 110 Indicate, by using the first level signaling, the area identifier of the PHICH to the user equipment.
  • the first level signaling has multiple indication methods, such as:
  • the method (1) indicates that the PHICH channel group number " ⁇ , that is, the area where the PHICH is located is the P HICH channel group number" ⁇ ;
  • the method (2) indicating a starting PHICH channel identifier of the PHICH channel region, for example, a starting PHICH channel label pair;
  • the method (3) indicating all PHICH channel identifier sets in the PHICH channel region, for example, all PHICH channel label pairs.
  • the foregoing first level signaling may be notified by the base station to the user equipment by using the high layer signaling, where the high layer signaling refers to the non-physical layer signaling delivered by the base station.
  • the user equipment can be notified by the base station through high layer signaling specific to the user equipment.
  • the first level signaling may also be notified by the base station to the user equipment through physical layer signaling.
  • Step 120 Indicate, by using the second level signaling, the PHICH channel identifier in the area identifier to the user equipment.
  • the second level signaling indicates that there are multiple indication methods, for example:
  • the first level signaling indicates the PHICH channel group number
  • the second level signaling indicates the orthogonal code label “ ⁇ in the PHICH channel group, that is, the area identifier of the allocated PHICH includes the PHIC H group.
  • the first level signaling indicates a starting PHICH channel identifier of the PHICH channel region
  • the second level signaling indicates an offset amount relative to the initial PHICH channel identifier, that is, an area identifier of the allocated PHICH.
  • the PHICH identifier allocated in the region indicated by the first level signaling is an offset relative to the initial PHICH identifier.
  • the user equipment may obtain the assigned PHICH channel identity by starting the PHICH channel identity and the offset relative to the initial PHICH channel identity.
  • the first level signaling indicates all PHICH channel identifier sets in the PHICH channel region, and the second level signaling indicates an element identifier in the PHICH channel identifier set, that is, the area identifier in which the PHICH is allocated is the PHICH region.
  • All PHICH identifier sets in the area, and the PHICH identifiers allocated in the area indicated by the first level signaling are element identifiers in the PHICH identifier set.
  • the user equipment obtains the assigned PHICH channel identifier from the PHICH channel identifier set by the identified element.
  • the second level signaling may be notified by the base station to the user equipment through physical layer signaling. Further, the second level signaling indicates the user equipment by using the uplink demodulation pilot cyclic shift information in the PDCCH carrying the physical layer uplink shared channel scheduling grant command. For a data packet, if the physical layer uplink shared channel used in the retransmission does not have a corresponding PDCCH carrying the scheduling grant command, then the recently received PDCCH carrying the physical layer uplink shared channel scheduling grant command corresponding to the data packet is used. The 3-bit uplink demodulation pilot cyclic shift information ⁇ ⁇ is indicated.
  • the PHICH channel allocation method provided in this embodiment is applicable not only to the LTE-A system but also to the LTE system.
  • the PHICH allocation mode of the LTE system needs to reserve PHICH channel resources according to the number of resource blocks.
  • the PHICH channel resources are reserved according to the number of resource blocks. Will form a big waste.
  • the method for allocating the PHICH by using the two-level signaling according to the embodiment can reserve the PHICH channel resource according to the number of system users, and the physical layer uplink shared channel allocated to the user equipment occupies a large number of resource blocks, for example, carrier aggregation. At that time, the PHICH channel resources required to be reserved can be effectively reduced.
  • Example 2 The embodiment of the invention further provides a channel allocation method under carrier aggregation. As shown in FIG. 2, the method includes the following steps:
  • Step 210 According to the correspondence between the uplink component carrier of the transmission physical layer uplink shared channel and the downlink component carrier of the transmission PHICH channel preset for the user equipment, the PHIC H allocation mode of the long-term evolution system is used as the downlink component carrier. The corresponding PHICH is allocated to the physical layer uplink shared channel scheduled by the uplink component carrier.
  • the PHICH channel allocation mode of the LTE system is calculated according to the minimum label IDdex and the 3-bit uplink demodulation pilot cyclic shift information of the resource block occupied by the physical layer uplink shared channel, and is not directly carried in the two information.
  • the allocated PHICH channel resource information is an implicit allocation method.
  • the number of uplink component carriers and the number of downlink component carriers configured for the LTE-A user equipment may be different. If an uplink component carrier and a downlink component carrier can be simultaneously accessed by an LTE user equipment, it is called a paired component carrier, otherwise it is called an unpaired component carrier.
  • the base station may use the same or different downlink component carriers as the physical layer uplink shared channel of the LTE-A user equipment according to the preset correspondence.
  • the corresponding PHICH channel is allocated.
  • the corresponding relationship may be multiple, for example, one or more downlink component carriers may be corresponding to multiple uplink component carriers.
  • the corresponding relationship may be that the uplink component carrier transmitting the physical layer uplink shared channel corresponds to the downlink component carrier of the PDCCH carrying the scheduling grant command of the physical layer uplink shared channel.
  • the embodiment of the present invention is not limited thereto.
  • the downlink primary component carrier may be predefined for the LTE-A user equipment.
  • the downlink component channel of the PDCCH of the shared channel scheduling grant command may be allocated to the physical layer uplink shared channel of the user equipment on the downlink primary component carrier.
  • Step 220 Allocate a corresponding PHICH to the physical layer uplink shared channel scheduled by the unpaired uplink component carrier of the downlink component carrier by using the display signaling according to the preset correspondence.
  • the display signaling may be high layer signaling or physical layer signaling delivered by the base station, and configured to be set to a user.
  • the assigned PHICH channel is notified.
  • the so-called display signaling means that the signaling directly carries all or part of the allocated PHICH channel resource information.
  • the display signaling may directly carry the assigned PHICH channel label pair r ICH .
  • the display signaling may also be the second level signaling in the first embodiment, where the first level signaling in the second level signaling indicates the area identifier in which the PH ICH is located, and the second level signaling indicates the area identifier. PHICH logo.
  • the PHICH channel resources of the paired uplink component carriers of one downlink component carrier are allocated according to a preset correspondence relationship, and the PHICH channel of the unpaired uplink component carrier of the downlink component carrier is adopted by using the mechanism adopted by the LTE system.
  • the allocation uses two levels of signaling to indicate the allocation of the PHICH channel, thus maintaining backward compatibility with the LTE system.
  • the embodiment of the invention further provides a channel allocation method under carrier aggregation. As shown in FIG. 3, the method includes the following steps:
  • Step 320 According to the correspondence between the uplink component carrier of the transmission physical layer uplink shared channel and the downlink component carrier of the transmission PHICH channel preset for the user equipment, the PHICH allocation mode of the long-term evolution system is paired of the downlink component carriers.
  • the physical layer uplink shared channel of the uplink component carrier scheduling allocates a corresponding PHICH.
  • the base station allocates at least two uplinks to the LTE-A user equipment on the same or different downlink component carriers according to the preset correspondence.
  • the PHICH channel corresponding to the physical layer uplink shared channel of the component carrier scheduling.
  • the corresponding relationship may be multiple, for example, one or more downlink component carriers may be corresponding to multiple uplink component carriers.
  • the PHICH channel allocated for the physical layer uplink shared channel of the user equipment is transmitted on the downlink component carrier where the PDCCH channel carrying the physical layer uplink shared channel scheduling grant command is located, and the corresponding relationship is the transport physical layer uplink sharing.
  • the uplink component carrier of the channel corresponds to the downlink component carrier of the PDCCH carrying the scheduling grant command of the physical layer uplink shared channel, but the present invention
  • the embodiment is not limited thereto, and the uplink component carrier transmitting the physical layer uplink shared channel may also be corresponding to the defined downlink primary component carrier.
  • the PHICH channel allocation mechanism calculates the PHICH channel label pair according to the minimum label of the resource block occupied by the physical layer uplink shared channel and the 3-bit uplink demodulation pilot cyclic shift information.
  • the physical layer uplink shared channel used in the retransmission does not have a corresponding PDCCH carrying the scheduling grant command, the most recently received bearer corresponding to the data packet is used.
  • the 3-bit uplink demodulation pilot cyclic shift information ⁇ ⁇ in the PDCCH of the physical layer uplink shared channel scheduling grant command is indicated.
  • Step 340 Allocate a PHICH corresponding to the physical layer uplink shared channel scheduled by the unpaired uplink component carrier of the downlink component carrier by using the second-level signaling according to the preset correspondence, and the first level in the second-level signaling
  • the signaling indicates the area identifier in which the PHICH is located
  • the second level signaling indicates the PHICH identifier allocated in the area identifier.
  • Step 1 indicate, by using the first level signaling, the area identifier of the PHICH to the user equipment.
  • Step 2 Instructing the PHICH channel identifier in the area indicated by the first level signaling by using the second level signaling.
  • a method of allocating a PHICH channel to a user equipment by using secondary signaling is referred to as a secondary signaling indicating a PHICH channel allocation mechanism.
  • the first level signaling has multiple indication methods, for example:
  • the method (1) indicates that the PHICH channel group number " ⁇ , that is, the area where the PHICH is located is the P HICH channel group number" ⁇ ;
  • the method (2) indicating a starting PHICH channel identifier of the PHICH channel region, for example, a starting PHICH channel label pair;
  • the method (3) indicating all PHICH channel identifier sets in the PHICH channel region, for example, all PHICH channel label pairs.
  • the foregoing first level signaling may be notified by the base station to the user equipment by using the high layer signaling, where the high layer signaling refers to the non-physical layer signaling delivered by the base station.
  • the user equipment can be notified by the base station through high layer signaling specific to the user equipment.
  • the first level signaling may also be notified by the base station to the user equipment through physical layer signaling.
  • the second level signaling indicates that there are multiple indication methods, for example:
  • the second level signaling indicates the orthogonal code label “ ⁇ in the PHICH channel group, that is, the area identifier of the allocated PHICH is PHI CH.
  • the second level signaling when the first level signaling indicates the initial PHICH channel identifier of the PHICH channel region, the second level signaling indicates an offset relative to the initial PHICH channel identifier, that is, an area where the allocated PHICH is located.
  • the initial PHICH identifier is identified as the PHICH region, and the PHICH identifier allocated in the region indicated by the first level signaling is an offset relative to the initial PHICH identifier.
  • the user equipment may obtain the assigned PHICH channel identity by starting the PHICH channel identity and the offset relative to the initial PHICH channel identity.
  • the second level signaling indicates an element identifier in the PHICH channel identifier set, that is, the area identifier in which the PHICH is allocated is PHICH All PHICH identifier sets in the area, and the PHICH identifiers allocated in the area indicated by the first level signaling are element identifiers in the PHICH identifier set.
  • User equipment passed the standard The identified elements can obtain the assigned PHICH channel identifier from the PHICH channel identification set.
  • the second level signaling may be notified by the base station to the user equipment through physical layer signaling. Further, the second level signaling indicates the user equipment by using the uplink demodulation pilot cyclic shift information in the PDCCH carrying the physical layer uplink shared channel scheduling grant command. For a data packet, if the physical layer uplink shared channel used in the retransmission does not have a corresponding PDCCH carrying the scheduling grant command, then the recently received PDCCH carrying the physical layer uplink shared channel scheduling grant command corresponding to the data packet is used. The 3-bit uplink demodulation pilot cyclic shift information ⁇ ⁇ is indicated.
  • the area identifier of a PHICH channel is separately notified.
  • the specific notification mode can be set to be the same as that of the LTE-A user equipment member carrier aggregation configuration. For example, when the LTE-A user equipment component carrier aggregation configuration information is notified by user-specific high-layer signaling, a PHICH channel is separately notified for each configured unpaired uplink component carrier by user-specific high-layer signaling.
  • the special PDCCH can also carry the area identification information of the PHICH channel of each unpaired uplink component carrier. .
  • the base station For the LTE-A user equipment, when the PDCCH channel carrying the physical layer uplink shared channel scheduling grant command is transmitted on the configured downlink component carrier, and the configured number of uplink component carriers is greater than the number of downlink component carriers, the base station is the LTE-A.
  • the plurality of physical layer uplink shared channels scheduled by the plurality of uplink component carriers of the user equipment allocate corresponding PHICH channels, and the allocated PHICH channels may be transmitted by using downlink component carriers of the PDCCH channel carrying the corresponding physical layer uplink shared channel scheduling grant command.
  • An example of this is shown in Figure 4, where the base station configures two downlinks for one LTE-A user equipment.
  • the component carriers 1 and 2 are configured with three uplink component carriers 1 ', 2' and 3', and the PDCCH channel carrying the physical component uplink shared channel scheduling grant command of the uplink component carrier 1' scheduling is transmitted on the downlink component carrier 1, carrying The PDCCH channel of the physical layer uplink shared channel scheduling grant command of the uplink component carriers 2' and 3' scheduling is transmitted on the downlink component carrier 2.
  • the base station allocates a corresponding PHICH channel to the physical layer uplink shared channel scheduled by the LTE-A user equipment on the uplink component carrier 1 ', and the allocated PHICH channel can be transmitted on the downlink component carrier 1.
  • the base station allocates a corresponding PHICH channel to the physical layer uplink shared channel scheduled on the uplink component carriers 2' and 3' of the LTE-A user equipment, and the allocated PHICH channel is transmitted on the downlink component carrier 2.
  • the PHICH channel correspondence between the uplink and downlink member carriers of all user equipments scheduled on each component carrier may be set to be the same or different.
  • the uplink component carrier and the downlink component carrier 1, the uplink component carrier 2' and the downlink component carrier 2 form two component pairs of component carriers; in the remaining case, one uplink component carrier and one downlink component carrier form an unpaired component carrier.
  • the base station when the base station performs PHICH channel allocation on the LTE-A user equipment, uses the PHICH channel allocation mechanism of the LTE system to serve the LTE-A user equipment according to the foregoing step 320.
  • the uplink component carriers 1' and 2' are scheduled to be assigned to the PHICH channel corresponding to the physical layer uplink shared channel, and the allocated PHICH channel can be respectively on the downlink component carriers of the uplink component carriers 1' and 2', that is, in the downlink component carrier 1 And 2 transmission, as shown in FIG. 5, the open arrow in FIG. 5 indicates that the PHICH channel is allocated using the PHICH channel allocation mechanism of the LTE system.
  • the base station uses the second-level signaling to indicate to the LTE-A user equipment, the PHICH channel corresponding to the physical layer uplink shared channel scheduled by the uplink component carrier 3', and the indicated PHICH channel can be downlink.
  • the first level signaling indicates the area identifier of the allocated PHICH channel to the user equipment, and the second level signaling indicates to the user equipment the PHICH channel identifier in the area indicated by the first level signaling.
  • the relationship between the number of configured downlink component carriers and the number of uplink component carriers is only A plurality of uplink component carriers are configured, and the base station allocates corresponding PHICH channels for the plurality of physical layer uplink shared channels scheduled by the multiple uplink component carriers of the L TE-A user equipment, and the allocated PHICH channels can be concentrated. Transmission on the downlink component carrier transmitting the PDCCH channel.
  • Figure 6 shows an example of this situation, in which three downlink component carriers 1, 2 and 3 are configured for one LTE-A user equipment, and two uplink component carriers 1 ' and 2 ' are configured to carry uplink members.
  • the PDCCH channels of the physical layer uplink shared channel scheduling grant command scheduled by carriers 1 ' and 2 ' are concentrated on the downlink component carrier 2 transmission. Then, the base station allocates a corresponding PHICH channel for the physical layer uplink shared channel scheduled on the uplink component carriers 1' and 2' of the LTE-A user equipment, and the allocated PHICH channel is transmitted on the downlink component carrier 2.
  • the PHICH channel correspondence between the uplink and downlink member carriers of all user equipments scheduled on each component carrier may be set to be the same or different.
  • the scenario corresponding to FIG. 6 is more suitable for setting different uplink and downlink members for different user equipments.
  • the uplink component carrier and the downlink component carrier 1, the uplink component carrier 2', and the downlink component carrier 2 constitute two component pairs of component carriers; in the remaining case, one uplink component carrier and one downlink component carrier constitute an unpaired component carrier.
  • the base station uses the PHICH channel allocation mechanism of the LTE system to schedule the physical layer uplink shared channel of the uplink component carrier 2' of the LTE-A user equipment. A corresponding PHICH channel is allocated, and the allocated PHICH channel is transmitted on the downlink component carrier 2.
  • the open arrows in Figure 7 indicate the allocation of PHICH channels using the PHICH channel allocation mechanism of the LTE system.
  • the base station uses the secondary signaling to indicate that the PHICH channel allocation mechanism allocates a corresponding PHICH channel to the physical layer uplink shared channel scheduled by the uplink component carrier 1 ', and the allocated PHICH channel is on the downlink component carrier 2.
  • the acknowledgement response or the denial response information may be fed back to the user equipment by using the allocated PHICH on the downlink component carrier.
  • the channel allocation method in the embodiment of the present invention further includes:
  • Step 300 Reserve PHICH resources for the pair of uplink component carriers of the downlink component carrier according to the PHICH reservation mode of the long term evolution system.
  • the PHICH channel reservation mechanism of the LTE system may be used to reserve PHICH channel resources for the corresponding paired uplink component carriers, that is, the parameters of the base station broadcast notification and ⁇ are determined to be paired uplinks.
  • the method further includes the following steps:
  • Step 310 Reserve PHICH resources for the unpaired uplink component carriers of the downlink component carrier.
  • Both the PHICH channel region identifier indicated in the secondary signaling and the PHICH channel identifier in the region may fall within the group PHICH channel resource reserved for the paired uplink component carriers. If the PHICH channel area identifier indicated in the secondary signaling and the PHICH channel identifier in the area fall within the JV group PHICH channel resource reserved for the paired uplink component carrier, then the PHICH may not be indicated for the secondary signaling.
  • the channel allocation mechanism reserves additional PHICH channel resources.
  • a data packet may not have a PDCCH carrying a physical layer uplink shared channel scheduling grant command when retransmitting
  • reserving additional PHICH channel resources for the secondary signaling indicating PHICH channel allocation mechanism can reduce the possibility for the scheduler to avoid Restrictions caused by PHICH channel collisions between user equipments.
  • the embodiment of the present invention preferably reserves additional PHICH channel resources for the secondary signaling indicating PHICH channel allocation mechanism.
  • CCEs are interleaved in units of REGs, and one CCE is composed of 9 REGs. After interleaving, it is likely that some of the remaining REGs are not used by the CCE, and the remaining REGs are not used by the PCFICH. PHICH is used, it is spare.
  • PHICH is used, it is spare.
  • three REGs carry a total of eight PHICH channels; in the long cyclic prefix subframe structure, three REG bearers are also a total of eight PHICH channels.
  • the number of remaining REGs is n REGJeft . When 3 ⁇ n REOJeft ⁇ 6, the remaining REGs can provide 8 PHICH channels.
  • the remaining REGs can provide 16 PHICH channels.
  • the additional PHICH channel resources reserved for the PHICH channel allocation mechanism for the secondary signaling preferentially use the remaining REG resources of the CCE interleaver, and if not enough, may occupy part of the CCE resources; or The additional PHICH channel resources indicated by the PHICH channel allocation mechanism are reserved to directly occupy part of the CCE resources.
  • the PHICH channel allocation is indicated for the secondary signaling.
  • the additional PHICH channel resource information reserved by the mechanism is only required to be received by the LTE-A user equipment, and the LTE user equipment may not receive.
  • the secondary signaling indicates that the additional PHICH channel resource reserved by the PHICH channel allocation mechanism includes the PHICH channel, and the number of the fldd 3 ⁇ 4 PHICH channel can be separately numbered, for example, the label: H ', NU;
  • d fiPHICH channel number: ⁇ ⁇ ⁇ +1, ⁇ ⁇ + ⁇ _1, to eliminate the impact on LTE user equipment.
  • the secondary signaling indicates the PHICH channel area identifier and the area indicated by the PHICH channel allocation mechanism.
  • the PHICH channel identifiers can all be located in the group PHICH channel resources, but this will increase the limitations imposed by some schedulers to avoid possible PHICH channel collisions between user equipments.
  • the reservation and allocation of the PHICH channel resources of the pair of uplink component carriers of one downlink component carrier are reused by the mechanism adopted by the LTE system, and the two-level signaling indication is adopted for the PHICH channel allocation of the unpaired uplink component carrier.
  • the mechanism for allocating the PHICH channel maintains backward compatibility with the LTE system.
  • all unpaired uplink component carriers of one downlink component carrier can be set according to the user.
  • a common PHICH channel resource pool is reserved, so that the amount can be effectively reduced.
  • the embodiment further provides a channel allocation method for carrier aggregation under LTE-A user equipment supporting multiple input and multiple output.
  • the uplink direction of the LTE-A system supports single-user multiple-input multiple-output technology.
  • one physical layer uplink shared channel may carry multiple independent transport blocks.
  • One ACK/NACK information bit is fed back for each transport block, so that a plurality of ACK/NACK information bits need to be fed back.
  • each PHICH channel can only carry 1 bit of ACK/NACK information. How do you allocate the PHICH channel to feed back the multiple ACK/NACK information bits?
  • a physical layer uplink shared channel carries K transport blocks, and K ACK/NACK information bits are fed back, where K is a positive integer.
  • This embodiment provides two PHICH channel allocation methods to solve the problem of feeding back ACK/NACK information bits corresponding to multiple transport blocks.
  • Step 720 Allocate a corresponding PHICH channel for the physical layer uplink shared channel of the user equipment, and each physical layer uplink shared channel corresponds to one PHICH channel.
  • the steps may include steps 210 and 220 in embodiment 2. That is, for an LTE-A user equipment, when the base station allocates a corresponding PHICH channel for the physical layer uplink shared channel scheduled by the multiple uplink component carriers of the LTE-A user equipment on the same downlink component carrier, in order to maintain the downlink
  • the LTE system of the component carrier is compatible, and the PHICH channel allocation mechanism of the physical layer uplink shared channel of the LTE-A user equipment scheduled on the paired uplink component carrier corresponding to the downlink component carrier reuses the PHICH channel allocation mechanism of the LTE system That is, the mechanism for calculating the PHICH channel label pair according to the minimum label of the resource block occupied by the physical layer uplink shared channel and the 3- bit uplink demodulation pilot cyclic shift information a ⁇ ; in the uplink that is not paired with the downlink component carrier
  • the PHICH channel allocation mechanism of the physical layer uplink shared channel of the LTE-A user equipment scheduled on the component carrier uses the display signaling indication to allocate the
  • the signaling indicating the allocation of the PHICH channel uses the two-level signaling in the third embodiment of the present invention to indicate the PHICH channel allocation mechanism, and the first level signaling in the two-level signaling indicates the PHICH allocated by the user equipment.
  • the area identifier of the channel is located, and the second level signaling further indicates the P HICH channel identifier in the area indicated by the first level.
  • Step 740 The base station logically AND operates K ACK/NACK information bits corresponding to the K transport blocks to obtain one ACK/NACK information bit, and feeds back the user equipment on the allocated PHICH channel by using the downlink component carrier. 1-bit ACK/NACK information.
  • the logic and the operation are as follows: If the K ACK/NACK information bits are all ACK, one ACK information bit is obtained, otherwise one NACK information bit is obtained.
  • the channel allocation method in the embodiment of the present invention further includes:
  • Step 700 Reserve PHICH resources for the pair of uplink component carriers of the downlink component carrier according to the PHICH reservation mode of the LTE system.
  • the PHICH channel reservation mechanism of the LTE system may be used to reserve PHICH channel resources for the corresponding paired uplink component carriers, that is, the parameters of the base station broadcast notification and ⁇ are determined to be paired uplinks.
  • the method further includes the following steps:
  • Step 710 Reserve PHICH resources for the unpaired uplink component carriers of the downlink component carrier.
  • the PHICH channel region identifier indicated in the secondary signaling and the PHICH channel identifier in the region may fall into the N ⁇ PHICH channel resource reserved for the paired uplink component carrier.
  • the PHICH channel area identifier indicated in the secondary signaling and the PHICH channel identifier in the area are both included in the group PHICH channel resource reserved for the paired uplink component carrier, then the PHICH may not be indicated for the secondary signaling.
  • the channel allocation mechanism reserves additional PHICH channel resources.
  • a data packet may not have a PDCCH carrying a physical layer uplink shared channel scheduling grant command when retransmitting, for the display signaling to indicate that the PHICH channel allocation mechanism reserves additional PHICH channel resources
  • the scheduler may be reduced to avoid possible users. Limits caused by PHICH channel conflicts between devices System. Based on this, the embodiment of the present invention preferably reserves additional PHICH channel resources for the display signaling to indicate the PHICH channel allocation mechanism.
  • the present embodiment is to display the remaining PHICH channel resource reserved by the PHICH channel allocation mechanism to preferentially use the remaining REG resources of the CCE interleaver. If not enough, the CCE resource may be occupied again; or The signaling indicates that the additional PHICH channel resources reserved by the PHICH channel allocation mechanism directly occupy part of the CCE resources.
  • Step 820 A base station allocates a corresponding PHICH channel for a physical layer uplink shared channel of a user equipment, and each carries K transport blocks.
  • the physical layer uplink shared channel corresponds to K PHICH channels.
  • the method may include the steps 210 and 220 in the second embodiment, that is, the allocation of the PHICH channel resources of the pair of uplink component carriers of one downlink component carrier adopts a mechanism adopted by the LTE system, and the unpaired uplink of the downlink component carrier is used.
  • the PHICH channel allocation of the component carrier uses the display signaling to indicate the allocation of the PHICH channel.
  • the signaling indicating the allocation of the PHICH channel uses the two-level signaling in the third embodiment of the present invention to indicate the PHICH channel allocation mechanism, and the first level signaling in the two-level signaling indicates the PHICH allocated by the user equipment.
  • the area identifier of the channel is located, and the second level signaling further indicates the PHICH channel identifier in the area indicated by the first level.
  • the manner of allocating K PHICH channels for the physical layer uplink shared channel carrying the K transport blocks is to use the K labels occupied by the physical layer uplink shared channel.
  • the label of the smallest resource block and 1 ⁇ are obtained using the LTE system PHICH channel allocation mechanism;
  • the manner of allocating K PHICH channels for the physical layer uplink shared channel carrying the K transport blocks is to use the display signaling to indicate the PHICH channel allocation mechanism to obtain a PHICH channel.
  • the remaining K-1 PHICH channels are obtained according to a preset rule through the PHICH channel.
  • An exemplary preset rule is to occupy consecutive K PHICH channels starting from the PHICH channel, but the invention is not limited thereto.
  • the way to obtain the remaining K-1 PHICH channels from an allocated PHICH channel according to a preset rule is paired with the physical layer uplink shared channel The same applies to the transmission in the uplink component carrier.
  • Step 840 The base station uses the allocated K PHICH channels to respectively feed back K ACK/NACK information bits corresponding to the K transport blocks.
  • the channel allocation method in the embodiment of the present invention further includes:
  • Step 800 Reserve PHICH resources for the pair of uplink component carriers of the downlink component carrier according to the PHICH reservation mode of the LTE system.
  • the PHICH channel reservation mechanism of the LTE system may be used to reserve PHICH channel resources for the corresponding paired uplink component carriers, that is, the parameters of the base station broadcast notification and ⁇ are determined to be paired uplinks.
  • the method further includes the following steps:
  • Step 810 Reserve PHICH resources for the unpaired uplink component carriers of the downlink component carrier.
  • the PHICH channel area identifier indicated in the secondary signaling and the PHICH channel identifier in the area may fall into the group PHICH channel resources reserved for the paired uplink component carriers. If the PHICH channel area identifier indicated in the secondary signaling and the PHICH channel identifier in the area are both included in the group PHICH channel resource reserved for the paired uplink component carrier, then the PHICH may not be indicated for the secondary signaling.
  • the channel allocation mechanism reserves additional PHICH channel resources.
  • a data packet may not have a PDCCH carrying a physical layer uplink shared channel scheduling grant command when retransmitting, for the display signaling to indicate that the PHICH channel allocation mechanism reserves additional PHICH channel resources
  • the scheduler may be reduced to avoid possible users. Restrictions caused by PHICH channel collisions between devices.
  • the embodiment of the present invention preferably reserves additional PHICH channel resources for the display signaling indicating the PHICH channel allocation mechanism.
  • the present embodiment is to display the remaining PHICH channel resource reserved by the PHICH channel allocation mechanism to preferentially use the remaining REG resources of the CCE interleaver. If not enough, the CCE resource may be occupied again; or The signaling indicates that the additional PHICH channel resources reserved by the PHICH channel allocation mechanism directly occupy part of the CCE resources.
  • the allocation of the PHICH channel resources of the paired uplink component carriers of a downlink component carrier is adopted by the LTE system, and the PICH channel allocation of the unpaired uplink component carriers of the downlink component carrier is indicated by the display signaling indication.
  • the PHICH channel maintains backward compatibility with the LTE system.
  • all the unpaired uplink component carriers of a downlink component carrier may reserve a common PHICH channel resource pool according to the carrier configuration of the user equipment, thereby effectively reducing the overhead of the reserved PHICH channel resource pool.
  • the problem of feeding back ACK/NACK information bits corresponding to a plurality of transport blocks is also solved.
  • This embodiment further provides a channel allocation method under carrier aggregation in a time division duplex LTE-A system. As shown in FIG. 10, the method in this embodiment includes the following steps:
  • Step 920 The PHI CH allocation mode of the LTE system is used as the downlink member of the user equipment according to the correspondence between the uplink component carrier of the uplink physical channel and the downlink component carrier of the PHICH channel that is preset for the user equipment.
  • the physical layer uplink shared channel of the paired uplink component carrier of the carrier is allocated a PHICH corresponding to the physical layer of the physical layer uplink shared channel carrying the two or more uplink component carriers.
  • Downlink control carrier PDCCH downlink component carrier.
  • This step can be the same as step 210 in embodiment 2.
  • Step 940 Allocate a corresponding PHICH to the physical layer uplink shared channel scheduled by the unpaired uplink component carrier of the downlink component carrier of the user equipment according to the corresponding relationship.
  • the method further includes: for an unpaired uplink component carrier, according to the uplink and downlink subframe ratio setting of the component carrier, and one intra downlink subframe. Or the physical layer uplink shared channel of the LTE-A user equipment scheduled by multiple uplink subframes allocates a PHICH channel.
  • the LTE-A user equipment scheduled for multiple uplink subframes in one downlink subframe is also required.
  • the layer-layer uplink shared channel allocates a PHICH channel.
  • An implementation manner of this step is to use a display signaling to indicate a PHICH channel when configuring a component carrier with a greater number of uplink subframes than the number of downlink subframes, when configured as an unpaired uplink component carrier of an LTE-A user equipment.
  • the allocation mechanism allocates different PHICH channels for each uplink subframe of multiple uplink subframes that feed back downlink ACK/NACK information in one downlink subframe.
  • the display signaling indicates that the PHIC H channel is allocated
  • the two-level signaling in the third embodiment of the present invention is used to indicate the PHICH channel allocation mechanism, and the downlink ACK/NACK information may be fed back in one downlink subframe.
  • Each uplink subframe of each uplink subframe notifies an area identifier of an independent PHICH channel. Specifically, according to the uplink and downlink subframe ratio setting of the component carrier, downlink ACK/NACK information of up to L uplink subframes is reported in one downlink subframe, and L PHICH channels are notified to the LTE-A user equipment. The area identifier is determined. When the PHICH channel is allocated, the area identifier of the used PHICH channel is determined according to the identifier of the uplink component carrier and the uplink subframe identifier of the physical layer uplink shared channel from the area identifier of the L PHICH channels.
  • Another implementation manner is to use a display signaling to indicate a PH ICH channel allocation mechanism for a component carrier configured with a number of uplink subframes more than the number of downlink subframes, when configured as an unpaired uplink component carrier of an LTE-A user equipment. And allocating the same PHICH channel to multiple uplink subframes that feed back downlink ACK/NACK information in one downlink subframe, for example, when the display signaling is the secondary signaling, notify one of the multiple uplink subframes by using the first level signaling.
  • the area identifier of the PHICH channel is located, and the PHICH channel identifier in the same area is notified by the second level signaling; the ACK/NACK information of the multiple uplink subframes that feed back downlink ACK/NACK information in one downlink subframe is logically and operated. Obtaining an ACK/NACK information; an ACK/NACK information obtained by the base station after the logical AND operation of the allocated PH ICH channel feedback.
  • this embodiment solves the problem of channel allocation under carrier aggregation of a time division duplex LTE-A system.
  • Step 900 Reserve PHICH resources for the pair of uplink component carriers of the downlink component carrier according to the PHICH reservation mode of the LTE system.
  • Step 910 Reserve PHICH resources for the unpaired uplink component carriers of the downlink component carrier.
  • the present embodiment is to display the remaining PHICH channel resource reserved by the PHICH channel allocation mechanism to preferentially use the remaining REG resources of the CCE interleaver. If not enough, the CCE resource may be occupied again; or The signaling indicates that the additional PHICH channel resources reserved by the PHICH channel allocation mechanism directly occupy part of the CCE resources.
  • the present embodiment provides a PHICH channel allocation apparatus.
  • the apparatus includes: an allocating unit, configured to allocate, by using the second level signaling, a PHICH corresponding to a physical layer uplink shared channel of the user equipment, where the second signaling is The first level signaling indicates the area identifier in which the PHICH is located, and the second level signaling indicates the PHICH identifier in the area identifier.
  • the allocating unit includes:
  • the area identifier assigning unit 1010 is configured to indicate, by using the first level signaling, the area identifier of the PHICH to the user equipment.
  • the channel identifier assigning unit 1020 is configured to further indicate the PHICH channel identifier in the area indicated by the first level signaling by using the second level signaling.
  • the device in this embodiment can reserve PHICH channel resources according to the number of system users.
  • the physical layer uplink shared channel allocated to the user equipment occupies a large number of resource blocks, for example, carrier aggregation, the required reservation can be effectively reduced.
  • PHICH channel resources For example, carrier aggregation, the required reservation can be effectively reduced.
  • This embodiment provides a PHICH channel allocation apparatus under carrier aggregation, as shown in FIG. Set includes:
  • the first allocating unit 1110 is configured to use the PHICH allocation mode of the long-term evolution system as a downlink member according to the correspondence between the uplink component carrier of the transport physical layer uplink shared channel and the downlink component carrier that transmits the PHICH channel preset for the user equipment.
  • the physical layer uplink shared channel of the paired uplink component carrier of the carrier is allocated to the corresponding PHICH, wherein the downlink component carrier is a physical layer downlink control channel PDCCH for transmitting a scheduling grant command carrying the two or more physical layer uplink shared channels.
  • the downlink component carrier is a physical layer downlink control channel PDCCH for transmitting a scheduling grant command carrying the two or more physical layer uplink shared channels.
  • PDCCH physical layer downlink control channel
  • the second allocating unit 1120 is configured to allocate, according to the correspondence, a PHICH corresponding to the physical layer uplink shared channel scheduled by the unpaired uplink component carrier of the downlink member carrier by using the display signaling.
  • the second allocation unit 1120 displays signaling indicating that the allocated PHICH channel uses the secondary signaling to indicate the allocation of the PHICH channel, and the first level signaling in the secondary signaling indicates the area identifier of the PHICH.
  • the secondary signaling indicates the PHICH identifier within the area identifier.
  • the apparatus further includes:
  • the sending unit 1130 is configured to feed back, by using the allocated PHICH, the acknowledgement response or the denial response information to the user equipment on the downlink component carrier.
  • the apparatus further includes:
  • the first resource reservation unit 1140 is configured to reserve PHICH resources for the pair of uplink component carriers of the downlink component carrier according to the PHICH reservation mode of the long term evolution system.
  • the apparatus further includes:
  • the second resource reservation unit 1150 is configured to preferentially reserve the PHICH resource for the unpaired uplink component carrier of the downlink component carrier by using the remaining resource grid group resource after the control channel unit is interleaved, and reuse the control when the reservation is insufficient. Channel unit resources are supplemented; or
  • the PHIC H resource is reserved for the unpaired uplink component carrier of the downlink component carrier by using the control channel unit resource.
  • the second resource reservation unit 1150 further includes:
  • a numbering unit configured to reserve a PHICH for an unpaired uplink component carrier of the downlink component carrier
  • the PHICH labels in the channel group in the resource are separately numbered, or the PHICH resource reserved for the paired uplink component carriers of the downlink component carrier and the channel group in the PHICH resource reserved by the unpaired uplink component carrier of the downlink component carrier
  • the PHICH labels within are numbered uniformly.
  • the first allocating unit 1110 includes: a calculating unit, configured to use the label of the K-numbered resource block and the uplink demodulation occupied by the physical layer uplink shared channel. Pilot cyclic shift information to calculate K PHICH labels, where K is the number of transport blocks in the physical layer uplink shared channel;
  • the second allocating unit 1120 includes: an allocation subunit, configured to indicate, by using the display signaling, one PHICH information corresponding to the physical layer uplink shared channel scheduled by the unpaired uplink component carrier of the downlink component carrier to the user equipment, and K-1 channels are allocated according to a preset rule.
  • the device further includes:
  • the third allocating unit 1160 is configured to allocate, by using the display signaling, a corresponding PHICH for each uplink subframe, when the number of uplink subframes configured in the unpaired uplink component carrier of the downlink component carrier is greater than the number of downlink subframes. ;
  • the sending unit is further configured to feed back, by using the corresponding PHICH of each uplink subframe, the acknowledgement response or the negative acknowledgement information to the user equipment in the downlink subframe.
  • the device further includes:
  • the fourth allocating unit 1170 is configured to allocate, by using the display signaling, a PHICH for all uplink subframes when the number of uplink subframes configured in the unpaired uplink component carrier of the downlink component carrier is greater than the number of downlink subframes;
  • the sending unit is further configured to use the PHICH to feed back an acknowledgement response or a negative acknowledgement message to the user equipment, where the acknowledgement response or the acknowledgement response information is acknowledged or denied by corresponding to all uplink subframes.
  • the response information is obtained by logic and operation.
  • the channel allocation apparatus under carrier aggregation maintains backward compatibility with the LTE system. And all the unpaired uplink component carriers of a downlink component carrier can reserve a common PHICH channel resource pool according to the carrier configuration of the user equipment, which can effectively reduce the extra Reserved PHICH channel resource pool overhead. At the same time, the problem of feeding back ACK/NACK information bits corresponding to multiple transport blocks can be solved in time to divide the channel allocation problem under the carrier aggregation of the duplex LTE-A system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente invention concernent un procédé et un appareil d'attribution de canaux dans le cadre de l'agrégation de porteuses. Ledit procédé consiste : conformément à la relation correspondante programmée pour l'équipement d'utilisateur qui existe entre la porteuse composante de liaison montante du canal de partage de liaison montante de couche physique de transmission et la porteuse composante de liaison descendante du canal de transmission indicateur de demande de répétition automatique hybride physique (PHICH), à attribuer le PHICH correspondant pour le canal de partage de liaison montante de couche physique prévu par la porteuse composante de liaison montante grâce à l'application du mode d'attribution de PHICH du système à évolution à long terme (LTE), la porteuse composante de liaison montante et la porteuse composante de liaison descendante formant une paire; conformément à la relation correspondante, à attribuer le PHICH correspondant pour le canal de partage de liaison montante de couche physique prévu par la porteuse composante de liaison montante grâce à l'application de la signalisation secondaire, la porteuse composante de liaison montante et la porteuse composante de liaison descendante ne formant pas une paire. La signalisation de premier niveau dans la signalisation secondaire indique l'identifiant de la région où se situe le PHICH, et la signalisation de second niveau indique l'identifiant du PHICH dans l'identifiant de la région.
PCT/CN2009/070951 2009-03-23 2009-03-23 Procédé et appareil d'attribution de canaux Ceased WO2010108313A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200980000105.4A CN102124715B (zh) 2009-03-23 2009-03-23 一种信道分配方法及装置
PCT/CN2009/070951 WO2010108313A1 (fr) 2009-03-23 2009-03-23 Procédé et appareil d'attribution de canaux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/070951 WO2010108313A1 (fr) 2009-03-23 2009-03-23 Procédé et appareil d'attribution de canaux

Publications (1)

Publication Number Publication Date
WO2010108313A1 true WO2010108313A1 (fr) 2010-09-30

Family

ID=42780130

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/070951 Ceased WO2010108313A1 (fr) 2009-03-23 2009-03-23 Procédé et appareil d'attribution de canaux

Country Status (2)

Country Link
CN (1) CN102124715B (fr)
WO (1) WO2010108313A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103220792A (zh) * 2012-01-20 2013-07-24 上海贝尔股份有限公司 用于配置与pusch相关联的关联phich的方法和装置
WO2018018609A1 (fr) * 2016-07-29 2018-02-01 富士通株式会社 Appareil et procédé de transmission d'informations de rétroaction, et système de communication
CN111586843A (zh) * 2019-02-15 2020-08-25 上海朗帛通信技术有限公司 被用于无线通信的用户设备、基站中的方法和装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4037233B1 (fr) 2014-01-28 2023-10-04 Huawei Technologies Co., Ltd. Procédé d'indication de transmission de données, point d'accès et terminal

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101227739A (zh) * 2008-02-02 2008-07-23 中兴通讯股份有限公司 一种物理混合重传指示信道资源的分配方法
CN101365187A (zh) * 2007-08-09 2009-02-11 华为技术有限公司 一种实现上行资源指示的方法、基站和用户终端
WO2009022879A2 (fr) * 2007-08-14 2009-02-19 Lg Electronics Inc. Procédé d'acquisition d'informations de zone de ressources pour le canal phich et procédé de réception du canal pdcch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1889759B (zh) * 2005-06-27 2010-05-05 上海原动力通信科技有限公司 高速下行分组中支持多频点数据接收的方法
CN101132225B (zh) * 2006-08-24 2012-04-11 中兴通讯股份有限公司 上行增强系统中共享非调度资源和调度资源的传输方法
CN101179352A (zh) * 2006-11-08 2008-05-14 中兴通讯股份有限公司 增强混合自动重传请求指示信道的分配系统
CN101247171A (zh) * 2007-02-16 2008-08-20 北京三星通信技术研究有限公司 使用约定资源发送控制信道的设备和方法
CN101127719B (zh) * 2007-09-27 2013-03-20 中兴通讯股份有限公司 用于lte系统的无线资源分配的指示方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101365187A (zh) * 2007-08-09 2009-02-11 华为技术有限公司 一种实现上行资源指示的方法、基站和用户终端
WO2009022879A2 (fr) * 2007-08-14 2009-02-19 Lg Electronics Inc. Procédé d'acquisition d'informations de zone de ressources pour le canal phich et procédé de réception du canal pdcch
CN101227739A (zh) * 2008-02-02 2008-07-23 中兴通讯股份有限公司 一种物理混合重传指示信道资源的分配方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical Channels and Modulation (Release 8)", 3GPP TS36.211 V8.5.0, December 2008 (2008-12-01), pages 60 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103220792A (zh) * 2012-01-20 2013-07-24 上海贝尔股份有限公司 用于配置与pusch相关联的关联phich的方法和装置
WO2018018609A1 (fr) * 2016-07-29 2018-02-01 富士通株式会社 Appareil et procédé de transmission d'informations de rétroaction, et système de communication
CN111586843A (zh) * 2019-02-15 2020-08-25 上海朗帛通信技术有限公司 被用于无线通信的用户设备、基站中的方法和装置
CN111586843B (zh) * 2019-02-15 2023-04-07 上海朗帛通信技术有限公司 被用于无线通信的用户设备、基站中的方法和装置

Also Published As

Publication number Publication date
CN102124715A (zh) 2011-07-13
CN102124715B (zh) 2013-08-14

Similar Documents

Publication Publication Date Title
CN110352582B (zh) 无线通信系统中的上行链路信号发送或接收方法及其设备
JP5721443B2 (ja) 無線通信システムにおけるｈａｒｑ実行方法
JP5933644B2 (ja) 上り制御チャネル資源の確定方法と装置
CN105634691B (zh) 数据传输方法、装置及系统
CN114175551B (zh) 通信装置、基础设施设备以及方法
CN104092520B (zh) 载波聚合时反馈ack/nack信息的方法、基站和用户设备
CN102202408B (zh) 多子帧调度方法、系统和设备
CN103392369B (zh) 用于载波聚合系统的通信方法和装置
CN104145443B (zh) 装置至装置通信方法和用于执行该方法的装置
CN101690115B (zh) 为用户分配应答信道的方法、装置和系统
CN101958775B (zh) 确认信息的发送方法及用户设备
CN105227275B (zh) 具有捆绑窗口中的所指配数据分组的信令的电信系统中的方法和装置
CN102938690B (zh) 应答信息的发送、接收方法和设备
CN108293248A (zh) 通信装置、基础设施设备、通信系统和方法
EP2250849A1 (fr) Mappage d'un décalage cyclique à un indice de canal pour allocation de ressource d ack/nack
CN106301711A (zh) 在半持续性传输中改善的重传能力
WO2010083782A1 (fr) Procédés et dispositifs pour l'attribution de ressources et le traitement d'informations de confirmation
WO2012022239A1 (fr) Procédé, station de base et équipement utilisateur permettant de commander la transmission de canal et la confirmation des ressources
CN107295702B (zh) 一种窄带蜂窝通信的方法和装置
CN103648175B (zh) 多子帧调度方法、系统和设备
JP6668482B2 (ja) 下りリンク送信方法、基地局及び端末
WO2011083068A1 (fr) Procédé et appareil pour déterminer une information d'indice
CN101420293A (zh) Ack/nack信息的指示和数据重传的方法及装置
WO2012167489A1 (fr) Procédé et appareil de transmission de données
WO2010108313A1 (fr) Procédé et appareil d'attribution de canaux

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980000105.4

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09842050

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09842050

Country of ref document: EP

Kind code of ref document: A1