WO2014056158A1 - Régulation de puissance pour accès par paquets en liaison montante à grande vitesse (hsupa) - Google Patents

Régulation de puissance pour accès par paquets en liaison montante à grande vitesse (hsupa) Download PDF

Info

Publication number
WO2014056158A1
WO2014056158A1 PCT/CN2012/082710 CN2012082710W WO2014056158A1 WO 2014056158 A1 WO2014056158 A1 WO 2014056158A1 CN 2012082710 W CN2012082710 W CN 2012082710W WO 2014056158 A1 WO2014056158 A1 WO 2014056158A1
Authority
WO
WIPO (PCT)
Prior art keywords
acknowledgment
power control
received
control command
negative
Prior art date
Application number
PCT/CN2012/082710
Other languages
English (en)
Inventor
Insung Kang
Surendra Boppana
Shiau-He Tsai
Zhibin DANG
Aamod Dinkar Khandekar
Chao JIN
Original Assignee
Qualcomm Incorporated
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 Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to PCT/CN2012/082710 priority Critical patent/WO2014056158A1/fr
Priority to PCT/CN2013/084903 priority patent/WO2014056430A1/fr
Publication of WO2014056158A1 publication Critical patent/WO2014056158A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/48—TPC being performed in particular situations during retransmission after error or non-acknowledgment

Definitions

  • aspects of the present disclosure relate generally to wireless communication systems, and more particularly, to improving High Speed Uplink Packet Access (HSUPA) power control procedures.
  • HSUPA High Speed Uplink Packet Access
  • Wireless communication networks are widely deployed to provide various communication services such as telephony, video, data, messaging, broadcasts, and so on.
  • Such networks which are usually multiple access networks, support communications for multiple users by sharing the available network resources.
  • UTRAN Universal Terrestrial Radio Access Network
  • the UTRAN is the radio access network (RAN) defined as a part of the Universal Mobile Telecommunications System (UMTS), a third generation (3G) mobile phone technology supported by the 3rd Generation Partnership Project (3GPP).
  • UMTS Universal Mobile Telecommunications System
  • 3GPP 3rd Generation Partnership Project
  • the UMTS which is the successor to Global System for Mobile Communications (GSM) technologies, currently supports various air interface standards, such as Wideband-Code Division Multiple Access (W-CDMA), Time Division-Code Division Multiple Access (TD-CDMA), and Time Division-Synchronous Code Division Multiple Access (TD- SCDMA).
  • W-CDMA Wideband-Code Division Multiple Access
  • TD-CDMA Time Division-Code Division Multiple Access
  • TD- SCDMA Time Division-Synchronous Code Division Multiple Access
  • the UMTS also supports enhanced 3G data communications protocols, such as High Speed Packet Access (HSPA), which provides higher data transfer speeds and capacity to associated UMTS networks.
  • HSPA is a collection of two mobile telephony protocols, High Speed Downlink Packet Access (HSDPA) and High Speed Uplink Packet Access (HSUPA), that extends and improves the performance of existing wideband protocols.
  • HSPA High Speed Packet Access
  • HSPA High Speed Downlink Packet Access
  • HSUPA High Speed Uplink Pack
  • FIGURE 1 is a block diagram conceptually illustrating an example of a telecommunications system.
  • FIGURE 2 is a block diagram conceptually illustrating an example of a frame structure in a telecommunications system.
  • FIGURE 3 is a block diagram conceptually illustrating an example of a node B in communication with a UE in a telecommunications system.
  • FIGURE 4 is a block diagram illustrating a power control method according to one aspect of the present disclosure.
  • FIGURE 5 is a diagram illustrating an example of a hardware implementation for an apparatus employing a processing system according to one aspect of the present disclosure.
  • FIGURE 1 a block diagram is shown illustrating an example of a telecommunications system 100.
  • the various concepts presented throughout this disclosure may be implemented across a broad variety of telecommunication systems, network architectures, and communication standards.
  • the aspects of the present disclosure illustrated in FIGURE 1 are presented with reference to a UMTS system employing a TD-SCDMA standard.
  • the UMTS system includes a (radio access network) RAN 102 (e.g., UTRAN) that provides various wireless services including telephony, video, data, messaging, broadcasts, and/or other services.
  • RAN 102 e.g., UTRAN
  • the RAN 102 may be divided into a number of Radio Network Subsystems (RNSs) such as an RNS 107, each controlled by a Radio Network Controller (RNC) such as an RNC 106.
  • RNC Radio Network Controller
  • the RNC 106 is an apparatus responsible for, among other things, assigning, reconfiguring and releasing radio resources within the RNS 107.
  • the RNC 106 may be interconnected to other RNCs (not shown) in the RAN 102 through various types of interfaces such as a direct physical connection, a virtual network, or the like, using any suitable transport network.
  • the geographic region covered by the RNS 107 may be divided into a number of cells, with a radio transceiver apparatus serving each cell.
  • a radio transceiver apparatus is commonly referred to as a node B in UMTS applications, but may also be referred to by those skilled in the art as a base station (BS), a base transceiver station (BTS), a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), an access point (AP), or some other suitable terminology.
  • BS basic service set
  • ESS extended service set
  • AP access point
  • two node Bs 108 are shown; however, the RNS 107 may include any number of wireless node Bs.
  • the nodeBs 108 provide wireless access points to a core network 104 for any number of mobile apparatuses.
  • a mobile apparatus include a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a laptop, a notebook, a netbook, a smartbook, a personal digital assistant (PDA), a satellite radio, a global positioning system (GPS) device, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, or any other similar functioning device.
  • SIP session initiation protocol
  • PDA personal digital assistant
  • GPS global positioning system
  • multimedia device e.g., a digital audio player (e.g., MP3 player), a camera, a game console, or any other similar functioning device.
  • MP3 player digital audio player
  • the mobile apparatus is commonly referred to as user equipment (UE) in UMTS applications, but may also be referred to by those skilled in the art as a mobile station (MS), a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal (AT), a mobile terminal, a wireless terminal, a remote terminal, a handset, a terminal, a user agent, a mobile client, a client, or some other suitable terminology.
  • UE user equipment
  • MS mobile station
  • AT access terminal
  • three UEs 110 are shown in communication with the node Bs 108.
  • the downlink (DL), also called the forward link refers to the communication link from a node B to a UE
  • the uplink (UL) also called the reverse link
  • the core network 104 includes a GSM core network.
  • GSM Global System for Mobile communications
  • the core network 104 supports circuit-switched services with a mobile switching center (MSC) 112 and a gateway MSC (GMSC) 114.
  • MSC mobile switching center
  • GMSC gateway MSC
  • the MSC 112 is an apparatus that controls call setup, call routing, and UE mobility functions.
  • the MSC 112 also includes a visitor location register (VLR) (not shown) that contains subscriber- related information for the duration that a UE is in the coverage area of the MSC 112.
  • VLR visitor location register
  • the GMSC 114 provides a gateway through the MSC 112 for the UE to access a circuit- switched network 116.
  • the GMSC 114 includes a home location register (HLR) (not shown) containing subscriber data, such as the data reflecting the details of the services to which a particular user has subscribed.
  • HLR home location register
  • the HLR is also associated with an authentication center (AuC) that contains subscriber-specific authentication data.
  • AuC authentication center
  • the core network 104 also supports packet-data services with a serving GPRS support node (SGSN) 1 18 and a gateway GPRS support node (GGSN) 120.
  • GPRS which stands for General Packet Radio Service, is designed to provide packet-data services at speeds higher than those available with standard GSM circuit-switched data services.
  • the GGSN 120 provides a connection for the RAN 102 to a packet-based network 122.
  • the packet-based network 122 may be the Internet, a private data network, or some other suitable packet-based network.
  • the primary function of the GGSN 120 is to provide the UEs 110 with packet-based network connectivity.
  • the UMTS air interface is a spread spectrum Direct-Sequence Code Division Multiple Access (DS-CDMA) system.
  • DS-CDMA Spread spectrum Direct-Sequence Code Division Multiple Access
  • the TD-SCDMA standard is based on such direct sequence spread spectrum technology and additionally calls for a time division duplexing (TDD), rather than a frequency division duplexing (FDD) as used in many FDD mode UMTS/W-CDMA systems.
  • TDD uses the same carrier frequency for both the uplink (UL) and downlink (DL) between a node B 108 and a UE 1 10, but divides uplink and downlink transmissions into different time slots in the carrier.
  • FIGURE 2 shows a frame structure 200 for a TD-SCDMA carrier.
  • the TD- SCDMA carrier as illustrated, has a frame 202 that is 10 ms in length.
  • the chip rate in TD-SCDMA is 1.28 Mcps.
  • the frame 202 has two 5 ms subframes 204, and each of the subframes 204 includes seven time slots, TS0 through TS6.
  • the first time slot, TS0 is usually allocated for downlink communication, while the second time slot, TS1, is usually allocated for uplink communication.
  • the remaining time slots, TS2 through TS6, may be used for either uplink or downlink, which allows for greater flexibility during times of higher data transmission times in either the uplink or downlink directions.
  • a downlink pilot time slot (DwPTS) 206, a guard period (GP) 208, and an uplink pilot time slot (UpPTS) 210 are located between TS0 and TS1.
  • Each time slot, TS0-TS6, may allow data transmission multiplexed on a maximum of 16 code channels.
  • Data transmission on a code channel includes two data portions 212 (each with a length of 352 chips) separated by a midamble 214 (with a length of 144 chips) and followed by a guard period (GP) 216 (with a length of 16 chips).
  • the midamble 214 may be used for features, such as channel estimation, while the guard period 216 may be used to avoid inter-burst interference.
  • FIGURE 3 is a block diagram of a node B 310 in communication with a UE 350 in a RAN 300, where the RAN 300 may be the RAN 102 in FIGURE 1, the node B 310 may be the node B 108 in FIGURE 1, and the UE 350 may be the UE 110 in FIGURE 1.
  • SS Synchronization Shift
  • a transmit processor 320 may receive data from a data source 312 and control signals from a controller/processor 340.
  • the transmit processor 320 provides various signal processing functions for the data and control signals, as well as reference signals (e.g., pilot signals).
  • the transmit processor 320 may provide cyclic redundancy check (CRC) codes for error detection, coding and interleaving to facilitate forward error correction (FEC), mapping to signal constellations based on various modulation schemes (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), M- quadrature amplitude modulation (M-QAM), and the like), spreading with orthogonal variable spreading factors (OVSF), and multiplying with scrambling codes to produce a series of symbols.
  • BPSK binary phase-shift keying
  • QPSK quadrature phase-shift keying
  • M-PSK M-phase-shift keying
  • M-QAM M- quadrature amplitude modulation
  • OVSF orthogonal variable spreading factors
  • channel estimates may be derived from a reference signal transmitted by the UE 350 or from feedback contained in the midamble 214 (FIGURE 2) from the UE 350.
  • the symbols generated by the transmit processor 320 are provided to a transmit frame processor 330 to create a frame structure.
  • the transmit frame processor 330 creates this frame structure by multiplexing the symbols with a midamble 214 (FIGURE 2) from the controller/processor 340, resulting in a series of frames.
  • the frames are then provided to a transmitter 332, which provides various signal conditioning functions including amplifying, filtering, and modulating the frames onto a carrier for downlink transmission over the wireless medium through smart antennas 334.
  • the smart antennas 334 may be implemented with beam steering bidirectional adaptive antenna arrays or other similar beam technologies.
  • a receiver 354 receives the downlink transmission through an antenna 352 and processes the transmission to recover the information modulated onto the carrier.
  • the information recovered by the receiver 354 is provided to a receive frame processor 360, which parses each frame, and provides the midamble 214 (FIGURE 2) to a channel processor 394 and the data, control, and reference signals to a receive processor 370.
  • the receive processor 370 then performs the inverse of the processing performed by the transmit processor 320 in the node B 310. More specifically, the receive processor 370 descrambles and despreads the symbols, and then determines the most likely signal constellation points transmitted by the node B 310 based on the modulation scheme.
  • the soft decisions may be based on channel estimates computed by the channel processor 394.
  • the soft decisions are then decoded and deinterleaved to recover the data, control, and reference signals.
  • the CRC codes are then checked to determine whether the frames were successfully decoded.
  • the data carried by the successfully decoded frames will then be provided to a data sink 372, which represents applications running in the UE 350 and/or various user interfaces (e.g., display).
  • Control signals carried by successfully decoded frames will be provided to a controller/processor 390.
  • the controller/processor 390 may also use an acknowledgement (ACK) and/or negative acknowledgement (NACK) protocol to support retransmission requests for those frames.
  • ACK acknowledgement
  • NACK negative acknowledgement
  • a transmit processor 380 receives data from a data source 378 and control signals from the controller/processor 390 and provides various signal processing functions including CRC codes, coding and interleaving to facilitate FEC, mapping to signal constellations, spreading with OVSFs, and scrambling to produce a series of symbols.
  • Channel estimates may be used to select the appropriate coding, modulation, spreading, and/or scrambling schemes.
  • the symbols produced by the transmit processor 380 will be provided to a transmit frame processor 382 to create a frame structure.
  • the transmit frame processor 382 creates this frame structure by multiplexing the symbols with a midamble 214 (FIGURE 2) from the controller/processor 390, resulting in a series of frames.
  • the frames are then provided to a transmitter 356, which provides various signal conditioning functions including amplification, filtering, and modulating the frames onto a carrier for uplink transmission over the wireless medium through the antenna 352.
  • the uplink transmission is processed at the node B 310 in a manner similar to that described in connection with the receiver function at the UE 350.
  • a receiver 335 receives the uplink transmission through the antenna 334 and processes the transmission to recover the information modulated onto the carrier.
  • the information recovered by the receiver 335 is provided to a receive frame processor 336, which parses each frame, and provides the midamble 214 (FIGURE 2) to the channel processor 344 and the data, control, and reference signals to a receive processor 338.
  • the receive processor 338 performs the inverse of the processing performed by the transmit processor 380 in the UE 350.
  • the data and control signals carried by the successfully decoded frames may then be provided to a data sink 339 and the controller/processor, respectively. If some of the frames were unsuccessfully decoded by the receive processor, the controller/processor 340 may also use an acknowledgement (ACK) and/or negative acknowledgement (NACK) protocol to support retransmission requests for those frames.
  • ACK acknowledgement
  • NACK
  • the controller/processors 340 and 390 may be used to direct the operation at the node B 310 and the UE 350, respectively.
  • the controller/processors 340 and 390 may provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
  • the computer readable media of memories 342 and 392 may store data and software for the node B 310 and the UE 350, respectively.
  • the memory 392 of the UE 350 may store an power control module 391 which, when executed by the controller/processor 390, configures the UE 350 for inter-RAT/inter-frequency measurements.
  • a scheduler/processor 346 at the node B 310 may be used to allocate resources to the UEs and schedule downlink and/or uplink transmissions for the UEs.
  • UEs may be capable of communicating on multiple radio access technologies (RATs). Such UEs may be referred to as multimode UEs.
  • a multimode UE may be capable of communications on a Universal Terrestrial Radio Access (UTRA) frequency division duplexed (FDD) network such as a Wideband-Code Division Multiple Access (W-CDMA) network, a UTRA time division duplexed (TDD) network such as a Time Division-Synchronous Code Division Multiple Access (TD- SCDMA) network, Global System for Mobile Communications (GSM) and/or a Long Term Evolution (LTE) network.
  • UTRA Universal Terrestrial Radio Access
  • FDD frequency division duplexed
  • W-CDMA Wideband-Code Division Multiple Access
  • TDD time division duplexed
  • TD- SCDMA Time Division-Synchronous Code Division Multiple Access
  • GSM Global System for Mobile Communications
  • LTE Long Term Evolution
  • Some enhanced uplink access systems such as High Speed Uplink Packet Access (HSUPA) systems include an enhanced uplink transport in which an Enhanced Dedicated Channel (E-DCH) is used for carrying an enhanced uplink packet.
  • the physical channels associated with E-DCH may include an E-DCH physical uplink channel (E-PUCH) and an E-DCH hybrid automatic repeat request indication channel (E-HICH).
  • E-PUCH is a service channel used for a UE to carry an E-DCH transmission channel packet.
  • E-HICH is a physical layer control channel used for a base station or Node B to carry hybrid automatic repeat request (HARQ) indication.
  • power control may be used by the base station and/or the UE to ensure sufficient quality of signals received at the base station and/or the UE.
  • the power at which the UE transmits an uplink packet in the HSUPA system may be controlled by the network.
  • the network may send a power control command to the UE instructing the UE to transmit an uplink packet to the base station at an expected transmit power.
  • the network may further send a power control command instructing the UE to increase or decrease the expected transmit power. Increasing or decreasing the expected transmit power may occur in discrete steps.
  • the power control command may instruct the UE to increase or decrease the expected transmit power by 1 dB.
  • Transmit power control (TPC) commands implement to power control.
  • uplink throughput may deteriorate when the received power control commands are inconsistent with the BLER associated with the UE.
  • the base station may limit the maximum data rate of uplink transmissions for each UE. This limitation may be based upon the resource availability in the network, channel conditions and the like.
  • a UE may communicate an enhanced transport format combination identifier (E-TFCI) over the E-UCCH uplink physical channel.
  • E-TFCI may indicate a maximum amount of data that is sent in each uplink transmission. Transmission by the UE at the maximum allowable data rate may not always result in optimal throughput for the uplink transmission.
  • the base station communicates control information including a maximum uplink data rate for each UE as well as power control information over the EAGCH downlink physical channel.
  • control information including a maximum uplink data rate for each UE as well as power control information over the EAGCH downlink physical channel.
  • the power control information is transmitted on E-HICH downlink channel.
  • the power control command received from the network is inconsistent with a block error rate (BLER) or throughput associated with the UE.
  • BLER block error rate
  • the network may send a power control command instructing the UE to decrease the expected transmit power even though network channel conditions are poor.
  • the inconsistency between network channel conditions and the power control command may result in a deterioration in the throughput experienced by the UE.
  • Some aspects of the present disclosure improve power control for uplink packet transmission by adjusting, with a UE, a transmission power control (TPC) command received from the network.
  • the adjustment of the TPC command may be based at least in part on whether an acknowledgement (ACK) or negative acknowledgement (NAK)is received by the UE.
  • ACK acknowledgement
  • NAK negative acknowledgement
  • a bias value is formed by recursively determining whether an acknowledgement or a negative acknowledgement is received for a predetermined number of previous uplink transmissions to form a bias value.
  • the TPC command is adjusted based on the bias value.
  • P e -base signaled is the expected transmit power
  • max(P e _ baS e signaled, -105 dBm) represents a range of the expected transmit power such that the minimum transmit power value is maintained.
  • the value -105 dBm is configurable.
  • the TPC may be increased by an offset value when a negative acknowledgment is received, as illustrated by the equation below.
  • TPC Adj TPC Adj -update
  • TPCAdj is the TPC adjustment
  • TPCAdj-update is the updated TPCAdj
  • ⁇ is the offset value
  • the TPC may be decreased by an adjusted value based on the offset value and a target block error rate (BLER) when an acknowledgment is received as illustrated by the equation below.
  • BLER target block error rate
  • BLER T A R G ET is the target block error rate
  • the expected transmit power may be increased or decreased based on the adjustment of the TPC.
  • a minimum value at which the base station can successfully decode is increased by the adjustment value, as illustrated by the equation below:
  • P e -base signaiedis the expected transmit power configured by the network for the UE;
  • P e -base min is the minimum transmit power at which a base station can decode the uplink packet.
  • a lower bound of the transmit power control value is set based on the TPC adjustment value, as illustrated by the equation below:
  • P e -base corresponds to the transmit power control value (i.e., the power the base station would like to see);
  • P e -base min is the minimum transmit power at which a base station can decode the uplink packet;
  • a TPC corresponds to a step size adjustment in power or discrete increase/decrease responsive to each TPC command.
  • the updated transmit power control value is then used to calculate the actual transmit power for uplink packets (e.g., for E-PUCH calculations and E-TFCI selection), as illustrated by the following equation:
  • PE-PUCH Pe-base + Lp at loss + ⁇
  • P E - P UC H is the actual transmit power for E-PUCH
  • Lp at ioss is a path loss observed by a UE
  • ⁇ 6 is the power adjustment based on the data rate (E-TFCI).
  • network power control can be corrected by a UE to respond to observed channel conditions.
  • FIGURE 4 shows a wireless communication method 400 according to one aspect of the disclosure.
  • a UE 350 receives an acknowledgement or negative acknowledgement, as shown in block 402.
  • a UE 350 adjusts network transmit power control commands based at least in part on whether the acknowledgement or the negative acknowledgement is received, as shown in block 404.
  • FIGURE 5 is a diagram illustrating an example of a hardware implementation for an apparatus 500 employing a power control system 514.
  • the power control system 514 may be implemented with a bus architecture, represented generally by the bus 524.
  • the bus 524 may include any number of interconnecting buses and bridges depending on the specific application of the power control system 514 and the overall design constraints.
  • the bus 524 links together various circuits including one or more processors and/or hardware modules, represented by the processor 522 the adjusting module502 and the computer-readable medium 526.
  • the bus 524 may also link various other circuits such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further.
  • the apparatus includes a power control system 514 coupled to a transceiver 530.
  • the transceiver 530 is coupled to one or more antennas 520.
  • the transceiver 530 enables communicating with various other apparatus over a transmission medium.
  • the power control system 514 includes a processor 522 coupled to a computer-readable medium 526.
  • the processor 522 is responsible for general processing, including the execution of software stored on the computer-readable medium 526.
  • the software when executed by the processor 522, causes the power control system 514 to perform the various functions described for any particular apparatus.
  • the computer-readable medium 526 may also be used for storing data that is manipulated by the processor 522 when executing software.
  • the power control system 514 includes the adjusting module502 for adjusting network power control commands based at least in part on whether an acknowledgement or negative acknowledgement is received.
  • the modules may be software modules running in the processor 522, resident/stored in the computer-readable medium 526, one or more hardware modules coupled to the processor 522, or some combination thereof.
  • the power control system 514 may be a component of the UE 350 and may include the memory 392, and/or the controller/processor 390.
  • an apparatus such as a UE is configured for wireless communication including means for adjusting.
  • the adjusting means may be the controller/processor 390, the memory 392, the power control module 391, adjusting module 502, and/or the power control system 514 configured to perform the functions recited by the aforementioned means.
  • the aforementioned means may be a module or any apparatus configured to perform the functions recited by the aforementioned means.
  • an apparatus such as a UE is configured for wireless communication including means for receiving acknowledgment/negative acknowledgment.
  • the above means may be the antennas 352, the receiver 354, the controller/processor 390, the memory 392, the power control module 391, adjusting module 502, antenna 520, transceiver 530 and/or the power control system 514 configured to perform the functions recited by the aforementioned means.
  • the aforementioned means may be a module or any apparatus configured to perform the functions recited by the aforementioned means.
  • HSUPA High Speed Downlink Packet Access
  • TD-SCDMA High Speed Packet Access Plus
  • HSPA+ High Speed Packet Access Plus
  • LTE Long Term Evolution
  • LTE-A LTE- Advanced
  • EV-DO Evolution-Data Optimized
  • UMB Ultra Mobile Broadband
  • Wi-Fi IEEE 802.11
  • WiMAX IEEE 802.16
  • UWB Ultra- Wideband
  • Bluetooth and/or other suitable systems.
  • LTE Long Term Evolution
  • network architecture and/or communication standard employed will depend on the specific application and the overall design constraints imposed on the system.
  • processors have been described in connection with various apparatuses and methods. These processors may be implemented using electronic hardware, computer software, or any combination thereof. Whether such processors are implemented as hardware or software will depend upon the particular application and overall design constraints imposed on the system.
  • a processor, any portion of a processor, or any combination of processors presented in this disclosure may be implemented with a microprocessor, microcontroller, digital signal processor (DSP), a field-programmable gate array (FPGA), a programmable logic device (PLD), a state machine, gated logic, discrete hardware circuits, and other suitable processing components configured to perform the various functions described throughout this disclosure.
  • DSP digital signal processor
  • FPGA field-programmable gate array
  • PLD programmable logic device
  • the functionality of a processor, any portion of a processor, or any combination of processors presented in this disclosure may be implemented with software being executed by a microprocessor, microcontroller, DSP, or other suitable platform.
  • Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
  • the software may reside on a computer-readable medium.
  • a computer-readable medium may include, by way of example, memory such as a magnetic storage device (e.g., hard disk, floppy disk, magnetic strip), an optical disk (e.g., compact disc (CD), digital versatile disc (DVD)), a smart card, a flash memory device (e.g., card, stick, key drive), random access memory (RAM), read only memory (ROM), programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), a register, or a removable disk.
  • memory is shown separate from the processors in the various aspects presented throughout this disclosure, the memory may be internal to the processors (e.g., cache or register).
  • Computer-readable media may be embodied in a computer-program product.
  • a computer-program product may include a computer-readable medium in packaging materials.

Landscapes

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

Abstract

L'invention concerne un procédé, un appareil et un progiciel informatique de communication sans fil. L'appareil reçoit un accusé de réception ou un accusé de réception négatif. L'appareil règle également une consigne de régulation de puissance de réseau en se basant au moins en partie sur la réception ou la non-réception de l'accusé de réception ou de l'accusé de réception négatif.
PCT/CN2012/082710 2012-10-10 2012-10-10 Régulation de puissance pour accès par paquets en liaison montante à grande vitesse (hsupa) WO2014056158A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2012/082710 WO2014056158A1 (fr) 2012-10-10 2012-10-10 Régulation de puissance pour accès par paquets en liaison montante à grande vitesse (hsupa)
PCT/CN2013/084903 WO2014056430A1 (fr) 2012-10-10 2013-10-09 Procédés et appareil de commande de paramètres de transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/082710 WO2014056158A1 (fr) 2012-10-10 2012-10-10 Régulation de puissance pour accès par paquets en liaison montante à grande vitesse (hsupa)

Publications (1)

Publication Number Publication Date
WO2014056158A1 true WO2014056158A1 (fr) 2014-04-17

Family

ID=50476870

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/CN2012/082710 WO2014056158A1 (fr) 2012-10-10 2012-10-10 Régulation de puissance pour accès par paquets en liaison montante à grande vitesse (hsupa)
PCT/CN2013/084903 WO2014056430A1 (fr) 2012-10-10 2013-10-09 Procédés et appareil de commande de paramètres de transmission

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/084903 WO2014056430A1 (fr) 2012-10-10 2013-10-09 Procédés et appareil de commande de paramètres de transmission

Country Status (1)

Country Link
WO (2) WO2014056158A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10075970B2 (en) 2015-03-15 2018-09-11 Qualcomm Incorporated Mission critical data support in self-contained time division duplex (TDD) subframe structure
US9936519B2 (en) 2015-03-15 2018-04-03 Qualcomm Incorporated Self-contained time division duplex (TDD) subframe structure for wireless communications
US10342012B2 (en) 2015-03-15 2019-07-02 Qualcomm Incorporated Self-contained time division duplex (TDD) subframe structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1898886A (zh) * 2003-12-29 2007-01-17 三星电子株式会社 时分双工的移动通信系统的自适应开环功率控制的方法及装置
CN101366194A (zh) * 2005-12-01 2009-02-11 艾利森电话股份有限公司 移动通信网络中的装置和方法
WO2011132721A1 (fr) * 2010-04-22 2011-10-27 Sharp Kabushiki Kaisha Procédé et système de télécommunication pour l'attribution de ressources de voie de commande de liaison montante physique, et station de base, installation d'abonné et circuit intégré correspondants

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7570968B2 (en) * 2003-12-29 2009-08-04 Samsung Electronics Co., Ltd Method and apparatus for adaptive open-loop power control in mobile communication system using TDD
CN101951638A (zh) * 2010-08-20 2011-01-19 北京天碁科技有限公司 一种增强传输格式组合的选择方法及装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1898886A (zh) * 2003-12-29 2007-01-17 三星电子株式会社 时分双工的移动通信系统的自适应开环功率控制的方法及装置
CN101366194A (zh) * 2005-12-01 2009-02-11 艾利森电话股份有限公司 移动通信网络中的装置和方法
WO2011132721A1 (fr) * 2010-04-22 2011-10-27 Sharp Kabushiki Kaisha Procédé et système de télécommunication pour l'attribution de ressources de voie de commande de liaison montante physique, et station de base, installation d'abonné et circuit intégré correspondants

Also Published As

Publication number Publication date
WO2014056430A1 (fr) 2014-04-17

Similar Documents

Publication Publication Date Title
US20140056239A1 (en) Methods and apparatus for power control for high-efficiency scheduling in td-scdma hsupa
US20120163248A1 (en) Baton Handover From TDD-LTE to TD-SCDMA Systems
WO2011143826A1 (fr) Procédé et appareil permettant d'accorder des autorisations de programmation effectives
WO2014005116A1 (fr) Fréquence de mesure réduite pour équipement utilisateur
US20150009963A1 (en) Inter radio access technology (irat) threshold adjustment
WO2011059517A1 (fr) Procédé et appareil permettant une correction de puissance lors d'une synchronisation de liaison montante pendant un transfert td-scdma
US8971292B2 (en) Method and apparatus for power control during TD-SCDMA baton handover
US9125149B2 (en) Method and apparatus for enhancement of synchronization for TD-SCDMA baton handover
US20120039261A1 (en) CQI Reporting of TD-SCDMA Multiple USIM Mobile Terminal During HSDPA Operation
US20110243093A1 (en) Method and Apparatus for Pre-Uplink Synchronization in TD-SCDMA Handover
US20140369312A1 (en) Adaptive transmit power control (tpc) step size in a high speed data network
US20150117307A1 (en) Adjusting physical random access channel (prach) transmission power
US8977270B2 (en) Updating a base reference power for high speed data resumption
WO2014070932A2 (fr) Attribution adaptative d'intervalles de temps libres sur la base d'un taux d'erreur
US9113467B2 (en) Adjusting initial transmit power for high speed data transmission
WO2014056158A1 (fr) Régulation de puissance pour accès par paquets en liaison montante à grande vitesse (hsupa)
US20150327100A1 (en) Idle interval and dedicated channel measurement occasion configurations
US20150146684A1 (en) Uplink transmission power and timing adjustment in td-scdma baton handover
US8594072B2 (en) User equipment based method to improve synchronization shift command convergence in TD-SCDMA uplink synchronization
US20140029582A1 (en) Method and apparatus for a power control mechanism
WO2013130900A1 (fr) Procédé et appareil de mesure irat en mode connecté td-scdma
WO2011059524A1 (fr) Procédé et appareil permettant de supporter une opération ack/cqi d'accès hsdpa pendant un transfert intercellulaire de type bâton dans des systèmes td-scdma
WO2016048530A1 (fr) Ajustement de fréquence pour effectuer des mesures de réseau local sans fil (wlan) sur la base de la mobilité d'équipement d'utilisateur
WO2014056155A1 (fr) Commande de débit d'accès par paquets en liaison montante haut débit (hsupa)
WO2015035931A1 (fr) Régulation de puissance améliorée pour la gestion d'un débit hsupa

Legal Events

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

Ref document number: 12886183

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: 12886183

Country of ref document: EP

Kind code of ref document: A1