WO2008131663A1 - Procédés et terminaux pour combiner des commandes ce contrôle de l'énergie de transmission - Google Patents

Procédés et terminaux pour combiner des commandes ce contrôle de l'énergie de transmission Download PDF

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Publication number
WO2008131663A1
WO2008131663A1 PCT/CN2008/070440 CN2008070440W WO2008131663A1 WO 2008131663 A1 WO2008131663 A1 WO 2008131663A1 CN 2008070440 W CN2008070440 W CN 2008070440W WO 2008131663 A1 WO2008131663 A1 WO 2008131663A1
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WIPO (PCT)
Prior art keywords
transmission
channel
dedicated physical
uplink
time slot
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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/CN2008/070440
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English (en)
Chinese (zh)
Inventor
Zongjie Wang
Chuanfeng He
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/44—TPC being performed in particular situations in connection with interruption of transmission

Definitions

  • the present invention relates to a high speed downlink packet access (HSDPA) technology of a UMTS radio access network (UMTS radio access network, hereinafter referred to as UTRAN), in particular, a transmission power.
  • HSDPA high speed downlink packet access
  • UTRAN UMTS radio access network
  • TPC Transmission power control
  • UE User Equipment
  • the service characteristic of the wireless communication packet service is that the transmission of its data is bursty, that is, the packet data is intermittently transmitted.
  • the number of data interruptions can be very large. For example: In a web browsing service, usually, a download webpage with data transmission is alternated with a webpage webpage without data transmission. In addition, there are still some businesses that require long-term sporadic data transmission.
  • the same connection state is maintained, that is, when there is no data transmission, the same network resources are allocated according to the data transmission, which wastes network resources and limits the network resources. The number of users online at the same time.
  • the 3rd Generation Partnership Project (3GPP) RAN has established a permanent online work project with the goal of not being between the UE and the UTRAN.
  • the inactive moment of data transmission enables the UE to maintain the connection state of the cell-dedicated channel (CELL_Dedicated Channel, CELL_DCH) for a long time, and consumes less resources of the air interface, and the service recovery time is less than 50 ms.
  • the DPCCH uses discontinuous transmission (Discontinuous Transmission).
  • DTX discontinuous Transmission
  • the UE may adopt a discontinuous reception (Discontinuous Reception, DRX) mode according to the parameters configured by the UTRAN, and the DTX and DRX modes between the UTRAN and the UE are called continuous packet connectivity (Continuous Packet Connectivity, below).
  • the barrel is called: CPC) mode.
  • the UE may set a Discontinuous Transmission-Discontinuous Reception_STATUS (DTX_DRX_STATUS) variable to identify whether it is in the reflected CPC mode.
  • DTX_DRX_STATUS Discontinuous Transmission-Discontinuous Reception_STATUS
  • the UE When the UE is in the CELL-DCH state; and the variable high speed downlink shared channel RECEPTION (hereinafter referred to as: HS_DSCH_RECEPTION) variable and Enhanced Dedicated Channel_TRANSMISSION (hereinafter referred to as: E_DCH_ TRANSMISSION) variable values are True; and no DCH transport channel is configured; and a discontinuous transmission and reception parameter variable (Discontinuous Transmission-Discontinuous Reception-PARAMS, below: DTX_DRX_PARAMS) is set for storing the parameter configuration related to the CPC mode;
  • the DTX-DRX timing information” information element is configured to the parameter related to the CPC mode sent by the
  • the uplink DPCCH and the Fractional-Dedicated Physical Control Channel may continue to transmit continuously in the delayable radio frame, after which the UE will discontinuously transmit.
  • a wireless link is established simultaneously with the NodeBs of multiple cells (Radio Link, the following cylinder is called: RL), all NodeBs that establish RL with the UE belong to the active set of the UE, and all the wireless links belonging to the same NodeB form a radio link set (hereinafter referred to as RLS).
  • RLS radio link set
  • HS-SCCH Shared Control Channel for HS-DSCH
  • the NodeB serving the HS_DSCH cell cannot know the control of the value of the UL_DTX_mode of the NodeB serving the HS_DSCH cell, so that it is impossible to know whether the UE is currently in the DTX mode, and the DPCCH transmission time cannot be known.
  • the default UL_DTX_mode value for the NodeB of the non-serving HS_DSCH cell may not match the actual value of UL_DTX_mode.
  • the second case is a first case
  • the discontinuous transmission of the uplink DPCCH is defined as: in one time slot, when any one of the following conditions is met, the UE performs uplink DPCCH transmission in the time slot:
  • a Hybrid Automatic RePeat Request ACK (hereinafter referred to as HARQ-ACK) is transmitted on a High Speed Dedicated Physical Control Channel (hereinafter referred to as HS-DPCCH);
  • HARQ-ACK Hybrid Automatic RePeat Request ACK
  • HS-DPCCH High Speed Dedicated Physical Control Channel
  • the channel quality indicator (Channel Quality Indicator, CQI) is transmitted on the HS-DPCCH.
  • E-DCH Enhanced Dedicated Channel
  • the time slot belongs to a time slot defined by a transmission structure of a Dedicated Physical Control Channel (DPCCH); 5.
  • the time slot has a preamble and a postamble transmission of the uplink DPCCH.
  • Condition 1 and condition 2 are the case of transmitting the uplink HS-DPCCH, and the DPCCH needs to be transmitted. Since only the transmission time of the NodeB HS-DPCCH serving the HS_DSCH cell and the corresponding DPCCH, the NodeB of the non-serving HS_DSCH cell cannot be learned; Centralized all NodeBs can know the transmission of DPCCH under conditions 3, 4, and 5.
  • the NodeB that activates the centralized non-serving HS_DSCH cell cannot know the transmission time of the uplink DPCCH, and thus cannot correctly detect the uplink DPCCH, generate and send the TPC to the UE;
  • all NodeBs in the active set can learn the uplink DPCCH transmission, that is, the NodeB of the non-serving HS_DSCH cell is in the set uplink DPCCH DTX transmission pattern time slot, uplink E-DCH.
  • the uplink DPCCH transmission time slot accompanying the transmission and the uplink and downlink time slots of the uplink DPCCH are transmitted, and the uplink DPCCH sent by the UE is detected, and the TPC is transmitted to the UE through the downlink F-DPCH in the corresponding time slot.
  • the UE In the uplink DPCCH transmission time slot that can be learned by the NodeB of the non-serving HS_DSCH cell, the UE combines the TPC commands carried in the downlink F-DPCH corresponding to the uplink DPCCH transmission time slot sent by all the RLSs in the active set, otherwise the UE only merges the service.
  • the UE When the UE performs soft handover in the CPC mode, in the above two cases, the UE does not merge the TPC sent by the NodeB from the non-serving HS_DSCH cell at all, even if the NodeB in the non-serving HS_DSCH cell can learn the corresponding uplink DPCCH transmission slot. In the case where the TPC is generated and transmitted to the UE through the downlink F-DPCH, the TPC transmitted from the NodeB of the non-serving HS_DSCH cell is also not combined. Summary of the invention
  • a method for merging transmission power control commands is provided. This method can make power control more accurate and reduce interference to other cells.
  • the method for merging the transmission power control commands includes the following steps:
  • the current time belongs to a transmission slot of the discontinuous transmission pattern of the uplink dedicated physical control channel corresponding to the transmission slot of the part of the dedicated physical channel, an uplink enhanced dedicated channel transmission slot, or a preamble or an uplink dedicated physical control channel
  • Obtaining any one of the transmitted transmission time slots and acquiring the transmission power control commands carried in the corresponding partial dedicated physical channel transmission time slots of all the wireless link sets in the active set and combining; otherwise, acquiring the active centralized service high speed downlink shared channel
  • the corresponding part of the radio link set of the cell transmits the transmission power control commands carried in the dedicated physical channel transmission time slots and merges them.
  • a terminal which can make power control more accurate and reduce interference to other cells.
  • the terminal includes:
  • a receiving module configured to perform downlink dedicated physical channel reception
  • a first determining module configured to determine whether the current time belongs to a transmission time slot, an uplink enhanced dedicated channel transmission time slot, or an uplink of a discontinuous transmission pattern of an uplink dedicated physical control channel corresponding to a transmission slot of the partial dedicated physical channel a pre- or post-transmission transmission time slot of the dedicated physical control channel;
  • a merging module configured to transmit a time slot belonging to the discontinuous transmission pattern at the current time, the uplink enhanced dedicated channel transmission time slot, or the uplink dedicated physics Obtaining a transmission power control command carried in a corresponding partial dedicated physical channel transmission time slot of all radio link sets in the active set in the transmission slot of the preamble or the downlink of the control channel, and merging;
  • the active centralized service is obtained.
  • FIG. 1 is a flow chart of an embodiment of a method for merging a TPC according to the present invention
  • FIG. 2 is a flow chart of another embodiment of a method for merging a TPC according to the present invention.
  • Embodiment 3 is a schematic structural diagram of Embodiment 1 of a UE according to the present invention.
  • Embodiment 4 is a schematic structural diagram of Embodiment 2 of a UE according to the present invention.
  • FIG. 5 is a schematic structural diagram of Embodiment 3 of a UE according to the present invention. detailed description
  • the UE when the current time belongs to the transmission time slot of the DTX pattern, or the E-DCH transmission time slot, or the preamble or the downlink transmission time slot of the DPCCH, the UE merges the TPC commands from all the RLSs to fully utilize the non-service.
  • the TCP of the RLS of the HS_DSCH cell is used to achieve accurate control of the power of the uplink DPCCH.
  • FIG. 1 it is a flowchart of an embodiment of a method for merging a TPC according to the present invention, which includes the following steps:
  • Step 101 The UE performs downlink F-DPCH reception, that is, receives information transmitted on the F-DPCH, where the information includes a TPC;
  • Step 102 The UE determines whether the current time belongs to a transmission time slot of a DTX pattern of an uplink DPCCH corresponding to a downlink F-DPCH transmission time slot, or a transmission time slot of an uplink E-DCH corresponding to a downlink F-DPCH transmission time slot, Or a transmission slot that belongs to the preamble or the downlink of the uplink DPCCH corresponding to the downlink F-DPCH transmission slot; if the current time belongs to the transmission slot of the DTX pattern of the uplink DPCCH corresponding to the downlink F-DPCH transmission slot, or uplink If the transmission time slot of the E-DCH or the transmission time slot of the uplink or the downlink of the uplink DPCCH is performed, go to step 103; otherwise, go to step 104; Step 103: The UE acquires the transmission time slot of the corresponding F-DPCH of all the RLSs in the active set. Carrying Take the TPC and merge it;
  • Step 104 The UE acquires and merges the TPCs carried in the transmission slots of the corresponding F-DPCHs of the RLSs that activate the centralized service HS_DSCH cell.
  • the UE in the embodiment shown in Figure 1 is in the CELL_DCH connection state.
  • the UE After receiving the information transmitted on the downlink F-DPCH, the UE determines whether the current time belongs to the transmission slot of the DTX pattern of the corresponding uplink DPCCH, or the E-DCH transmission slot, or the preamble or the downlink transmission slot of the DPCCH. If the current time belongs to the transmission slot of the DTX pattern of the corresponding uplink DPCCH, or the E-DCH transmission slot, or the preamble or the downlink transmission slot of the DPCCH, the transmission of the corresponding F-DPCH of all the RLSs in the active set is combined.
  • the TPC carried in the slot fully utilizes the TPC of the RLS of the non-serving HS_DSCH cell to participate in power control, thereby performing accurate power control on the uplink DPCCH and reducing interference to other cells.
  • FIG. 2 it is a flowchart of another embodiment of a method for merging a TPC according to the present invention, which includes the following steps:
  • Step 201 The UE enters a CELL_DCH connection state.
  • Step 202 When the UE meets the condition of the CPC mode, set the value of DTX_DRX_STATUS to True; if the UE does not satisfy the condition of the CPC mode, set the value of DTX_DRX_STATUS to False.
  • the UE is in the CPC mode when the UE satisfies the following conditions: (1) The UE detects that the value of the service HS_DSCH_RECEPTION variable and the E_DCH_TRANSMISSION variable is True; (2) the DCH transport channel is not configured; (3) is set for storage The DTX_DRX_PARAMS of the parameter configuration related to the CPC mode; (4) receiving the parameter configuration "DTX-DRX timing information" information element related to the CPC mode transmitted by the network side.
  • Step 203 The UE sets the value of DTX_DRX_mode according to the value of the DTX_DRX_STATUS variable.
  • the value of DTX_DRX_STATUS variable is True
  • the value of DTX_DRX_mode is set to True.
  • the value of DTX_DRX_STATUS variable is False
  • the value of DTX_DRX_mode is set to False.
  • Step 204 The UE performs downlink F-DPCH reception.
  • Step 205 The UE determines whether the value of DTX_DRX_mode is True, if If the value of DTX_DRX_mode is True, go to step 206; otherwise, go to step 207.
  • Step 206 The UE determines whether the current time belongs to a transmission time slot of the DTX pattern of the uplink DPCCH corresponding to the transmission time slot of the downlink F-DPCH, or the transmission time of the uplink E-DCH corresponding to the transmission time slot of the downlink F-DPCH a slot, or a transmission slot that belongs to the preamble or the downlink of the uplink DPCCH corresponding to the transmission slot of the downlink F-DPCH, if the current time belongs to the transmission slot of the DTX pattern of the uplink DPCCH corresponding to the downlink F-DPCH transmission slot
  • the transmission time slot of the uplink E-DCH or the transmission time slot of the preamble or the downlink of the uplink DPCCH is performed, and step 207 is performed. Otherwise, step 208 is performed.
  • Step 207 The UE acquires and merges the TPCs carried in the transmission slots of the corresponding F-DPCHs of all RLSs in the active set.
  • Step 208 The UE acquires and merges the TPCs carried in the transmission slots of the corresponding F-DPCHs of the RLSs of the active service HS_DSCH cell.
  • Step 209 The UE controls the power of the DPCCH by using the combined TPC.
  • FIG. 3 it is a schematic structural diagram of Embodiment 1 of a UE according to the present invention, which includes a receiving module 301, a first determining module 302, and a merging module 303.
  • the receiving module 301 is configured to perform downlink F-DPCH reception.
  • the first determining module 302 is configured to determine whether the current time belongs to a transmission time slot of the DTX pattern corresponding to the transmission time slot of the downlink F-DPCH, or belongs to the downlink F- The uplink E-DCH transmission time slot corresponding to the transmission time slot of the DPCH or the transmission time slot of the preamble or the downlink of the uplink DPCCH corresponding to the transmission time slot of the downlink F-DPCH, and outputting the judgment result to
  • the merging module 303 analyzes the judgment result output by the first judging module 302, if the current time belongs to the transmission time slot of the DTX pattern of the uplink DPCCH corresponding to the downlink F-DPCH transmission slot, or the transmission of the uplink E-DCH
  • the slot, or any one of the preamble or the downlink transmission slot of the uplink DPCCH acquires the TPC carried in the corresponding F-DPCH transmission slot of all the RLSs in the active set and merges; if the current moment does not belong to the
  • the UE At the time of transmission of the DTX pattern of the uplink DPCCH corresponding to the transmission slot of the downlink F-DPCH
  • the slot, or the transmission slot of the uplink E-DCH, or the preamble or the downlink transmission slot of the uplink DPCCH the UE combines the TPC carried in the corresponding F-DPCH transmission slot of all RLSs in the active set, and fully utilizes the non-serving HS_DSCH
  • the TCP of the RLS of the cell participates in power control, thereby performing accurate power control on the uplink DPCCH, reducing interference to other online users, and increasing the number of users in the online connection state.
  • FIG. 4 it is a schematic structural diagram of the second embodiment of the UE according to the present invention.
  • the embodiment is substantially the same as the first embodiment.
  • the UE in this embodiment further includes a first storage module 304 and a second storage module 305.
  • the first storage module 304 is configured to store a DTX_DRX_STATUS variable, including a value thereof, and the value may be True or False.
  • the second storage module 305 is configured to store the DTX_DRX_mode variable, including its value, which may be True or False.
  • the setting module 306 is configured to set a value of the DTX_DRX_STATUS variable when the UE enters the CELL_DCH state, set a value of the DTX_DRX_mode variable according to a value of the DTX_DRX_STATUS variable, and store the value of the DTX_DRX_STATUS variable and the value of the DTX_DRX_mode variable in the first storage module 304 and the second correspondingly.
  • the value of the DTX_DRX_STATUS variable is set to True, otherwise, the value is set to False;
  • the value of DTX_DRX_mode is set according to the value of the DTX_DRX_STATUS variable, when the value of the DTX_DRX_STATUS variable is When True, set the value of DTX_DRX_mode to True, otherwise set the value of DTX_DRX_mode to False.
  • the UE of the embodiment of the present invention may further include a second determining module 307, configured to determine whether the UE is in a discontinuous transmission and reception mode, that is, detecting whether the value of the DTX_DRX_mode variable stored in the second storage module 305 is True, in the DTX_DRX_mode variable.
  • the first determining module 302 is notified; if the value of the DTX_DRX_mode variable is False, that is, when the UE is not in the discontinuous transmission and receiving mode, the determining result is notified to the combining module 303, and the instructing the combining module 303 to obtain the active set.
  • the TPC carried in the corresponding F-DPCH transmission slot of the RLS serving the HS_DSCH cell is combined and merged.
  • FIG. 5 it is a schematic structural diagram of Embodiment 3 of the UE according to the present invention.
  • This embodiment is substantially the same as Embodiment 2.
  • the difference is that the UE further includes a control module 308, and receives the merge mode.
  • Block 303 outputs the combined TPC and uses the combined TPC to control the power of the upstream DPCCH.
  • the merging module 303 may specifically include an obtaining unit 3031 and a merging unit 3302.
  • the obtaining unit 3031 is configured to perform a corresponding operation according to the determination result sent by the first determining module 302, if the current time belongs to a transmission time slot of the DTX pattern of the uplink DPCCH corresponding to the downlink F-DPCH transmission time slot, or an uplink E-DCH transmission.
  • the time slot, or any one of the preamble or the downlink transmission time slot of the uplink DPCCH the UE acquires the TPC carried in the transmission slot of the corresponding F-DPCH of all the RLSs in the active set and sends the TPC to the merging unit 3302;
  • the UE does not belong to any one of the transmission time slot of the DTX pattern of the uplink DPCCH corresponding to the downlink F-DPCH transmission time slot, the uplink E-DCH transmission time slot, and the preamble and the downlink transmission time slot of the uplink DPCCH.
  • the TPC carried in the corresponding F-DPCH transmission slot of the RLS of the active centralized HS_DSCH cell is activated and sent to the merging unit 3302; the merging unit 3302 is configured to combine the TPCs sent by the obtaining unit 3031. After sent to the control module 308.
  • the downlink F-DPCH after the downlink F-DPCH is received by the UE, it is determined whether the current time belongs to a transmission time slot of the DTX pattern of the uplink DPCCH corresponding to the transmission time slot of the downlink F-DPCH, or an uplink E-DCH transmission time slot, or an uplink.
  • the preamble or post-transmission transmission time slot of the DPCCH is merged when the current time belongs to any one of a transmission time slot of a DTX pattern, an uplink E-DCH transmission time slot, or a preamble or a downlink transmission time slot of an uplink DPCCH.
  • the TPC carried in the corresponding F-DPCH transmission time slots of all RLSs is activated, so that all TPCs participate in power control, thereby performing accurate power control on the uplink DPCCH and reducing interference to other cells.

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

Abstract

La présente invention concerne des procédés et des terminaux pour combiner des commandes de contrôle de l'énergie de transmission. Le procédé comprend les étapes suivantes : - réception de canaux physiques dédiés fractionnels, en liaison descendante, - décision pour savoir s'il s'agit de fentes de transmission pour un motif de transmission discontinu de canaux de contrôle physique de liaison montante ou de canaux dédiés améliorés de liaison montante ou le préambule ou le postambule de canaux de contrôle physique dédié de liaison montante maintenant, - dans l'affirmative, dérivation des commandes de contrôle de l'énergie de transmission réalisées dans des fentes de transmission de canal physique dédiées fractionnelles correspondant à tous les ensembles de liaisons radio et leur combinaison, - dans la négative, dérivation des commandes de contrôle de l'énergie de transmission réalisées dans des fentes de transmission de canal physique dédié fractionnel correspondant à l'ensemble de liaisons radio de la cellule de service dans l'ensemble actif et leur combinaison. De cette manière, il fait plein usage des commandes de contrôle de l'énergie de transmission réalisées dans des canaux physiques dédiés fractionnels de liaison descendante lors de l'utilisation de la transmission discontinue, augmente la véracité du contrôle d'énergie du DPCCH en liaison montante et réduit les interférences pour d'autres cellules.
PCT/CN2008/070440 2007-04-30 2008-03-07 Procédés et terminaux pour combiner des commandes ce contrôle de l'énergie de transmission Ceased WO2008131663A1 (fr)

Applications Claiming Priority (2)

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CN2007100989589A CN101299622B (zh) 2007-04-30 2007-04-30 传输功率控制命令的合并方法与终端
CN200710098958.9 2007-04-30

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WO2008131663A1 true WO2008131663A1 (fr) 2008-11-06

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CN101997877B (zh) * 2010-11-16 2013-11-27 江苏省电力公司 嵌入式智能交互终端及其通讯方法
CN104125627B (zh) * 2013-04-23 2019-08-06 中兴通讯股份有限公司 一种下行专用物理信道发射的方法和装置

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