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US20030210660A1 - Radio resource management for a high speed shared channel - Google Patents

Radio resource management for a high speed shared channel Download PDF

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Publication number
US20030210660A1
US20030210660A1 US10/371,199 US37119903A US2003210660A1 US 20030210660 A1 US20030210660 A1 US 20030210660A1 US 37119903 A US37119903 A US 37119903A US 2003210660 A1 US2003210660 A1 US 2003210660A1
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United States
Prior art keywords
radio
high speed
channel
base station
speed shared
Prior art date
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Abandoned
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US10/371,199
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English (en)
Inventor
Niclas Wiberg
Eva Englund
Sharokh Amirijoo
Gert-Jan van Lieshout
Per Beming
Stefan Parkvall
Patrik Karlsson
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Telefonaktiebolaget LM Ericsson AB
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Individual
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26655702&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20030210660(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from SE0201467A external-priority patent/SE0201467D0/xx
Application filed by Individual filed Critical Individual
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) reassignment TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LIESHOUT, GERT-JAN VAN, BEMING, PER, PARKVALL, STEFAN, AMIRIJOO, SHAROKH, ENGLUND, EVA, KARLSSON, PATRIK, WIBERG, NICLAS
Priority to AT03721255T priority Critical patent/ATE425594T1/de
Priority to EP03721255A priority patent/EP1504545B1/fr
Priority to CN038109115A priority patent/CN1653718B/zh
Priority to JP2004504415A priority patent/JP4295206B2/ja
Priority to DE60326566T priority patent/DE60326566D1/de
Priority to PCT/SE2003/000694 priority patent/WO2003096571A1/fr
Priority to AU2003224581A priority patent/AU2003224581A1/en
Publication of US20030210660A1 publication Critical patent/US20030210660A1/en
Priority to US13/712,174 priority patent/US9265009B2/en
Priority to US15/004,407 priority patent/US10531399B2/en
Abandoned legal-status Critical Current

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    • 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]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/228—TPC being performed according to specific parameters taking into account previous information or commands using past power values or information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H—ELECTRICITY
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    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
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    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
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    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H04W52/08—Closed loop power control
    • H—ELECTRICITY
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    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H04W52/16—Deriving transmission power values from another channel
    • H—ELECTRICITY
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    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission
    • H04W52/281—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission taking into account user or data type priority
    • H—ELECTRICITY
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    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission
    • H04W52/286—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission during data packet transmission, e.g. high speed packet access [HSPA]
    • 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]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
    • H—ELECTRICITY
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    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
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    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • 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]
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/143—Downlink power control
    • 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]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/246—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where the output power of a terminal is based on a path parameter calculated in said terminal
    • 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]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • 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]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to radio communications, and more particularly, to radio resource management for a high speed shared channel.
  • UMTS Universal Mobile Telephone communications Systems
  • WCDMA Wideband Code Divisional Multiple Access
  • a WCDMA radio access network like the UMTS Terrestrial Radio Access Network (UTRAN), also enhances quality of service by providing robust operation in fading environments and transparent (soft/softer) handover between base station/base station sectors. For example, deleterious multipath fading is used to improve received signal quality with RAKE receivers and improved signal processing techniques.
  • UTRAN UMTS Terrestrial Radio Access Network
  • HS-DSCH High Speed-Downlink Shared Channel
  • WCDMA UTRAN networks to support higher peak rates on the order of 8-10 megabits per second.
  • One of the ways the HS-DSCH achieves higher data speeds is by shifting some of the radio resource coordination and management responsibilities to the base station from the radio network controller, including one or more of the following briefly described below: shared channel transmission, higher order modulation, link adaptation, radio channel dependent scheduling, and hybrid-ARQ with soft combining.
  • shared channel transmission and higher order modulation In shared channel transmission, radio resources, like spreading code space and transmission power in the case of CDMA-based transmission, are shared between users using time multiplexing. A high speed-downlink shared channel is one example of shared channel transmission.
  • shared channel transmission One significant benefit of shared channel transmission is more efficient utilization of available code resources as compared to dedicated channels. Higher data rates may be also be attained using higher order modulation, which is more bandwidth efficient than lower order modulation, when channel conditions are favorable.
  • Link Adaptation and Rate Control Radio channel conditions experienced on different communication links typically vary quite significantly, both in time and between different positions in the cell.
  • power control compensates for differences in variations in instantaneous radio channel conditions.
  • a larger part of the total available cell power is allocated to communication links with bad channel conditions to ensure similar quality of service to all communication links.
  • radio resources are more efficiently utilized when allocated to communication links with good channel conditions.
  • rate control or adjustment can be used to ensure there is sufficient energy received per information bit for all communication links as an alternative to power control.
  • the data rate can be adjusted to compensate for variations and differences in instantaneous channel conditions.
  • Channel Dependent Scheduling and Hybrid ARQ For maximum cell throughput, radio resources may be scheduled to the communication link having the best instantaneous channel condition. Rapid channel dependent scheduling performed at the bases station allows for very high data rates at each scheduling instance and thus maximizes overall system throughput. Hybrid ARQ with soft combining increases the effective received signal-to-interference ratio for each transmission and thus increases the probability for correct decoding of retransmissions compared to conventional ARQ. Greater efficiency in ARQ increases the effective throughput over a shared channel.
  • FIG. 1 illustrates a high speed shared channel concept where multiple users 1 , 2 , and 3 provide data to a high speed channel (HSC) controller that functions as a high speed scheduler by multiplexing user information for transmission over the entire HS-DSCH bandwidth in time-multiplexed intervals.
  • HSC high speed channel
  • user 3 transmits over the HS-DSCH and may use all of the bandwidth allotted to the HS-DSCH.
  • user 1 transmits over the HS-DSCH
  • the next time interval user 2 transmits
  • FIG. 2 illustrates an example code tree with a fixed Spreading Factor (SF) of sixteen. A subset those sixteen codes, e.g., twelve, is allocated to the high-speed shared channel. The remaining spreading codes, e.g., four are shown in the figure, are used for other radio channels like dedicated, common, and broadcast channels.
  • SF Spreading Factor
  • FIG. 3 illustrates allocating multiple spreading codes to users 1 , 2 , and 3 in code and time multiplexed fashion.
  • TTI transmission time interval
  • user 1 employs twelve codes.
  • transmission time interval 2 user 2 employs twelve spreading codes.
  • user 1 uses two of the codes, and user 3 uses the remaining ten codes.
  • TTI 4.
  • a high speed shared channel may not use closed loop power control, (as dedicated channels do), but instead simply uses the remaining power in the base station cell up to a preset maximum. Because the high-speed shared channel is used along with other channels, radio resources must be allocated to the different channels efficiently and without overloading the cell with too high of a power level. The power level for channels other than the high-speed shared channel must be managed to leave sufficient power for the shared channel to have the desired, high throughput.
  • the code assignment affects the throughput on the high-speed shared channel as well as the available code space for other channels.
  • An optimal code assignment depends on several factors, such as traffic load, the type of traffic, and current radio conditions. If too many CDMA codes are assigned to the high-speed shared channel, some of those codes maybe underutilized, which is a waste of radio resources. If too few codes are assigned, the channel throughput over the high-speed shared channel is too low.
  • the radio network controller performs radio resource management. Radio resources like spreading codes are allocated using one or more resource management algorithms. Other examples of such resource management include power/interference control, admission control, congestion control, etc.
  • the radio network controller can better perform its resource management tasks if it knows the current resource status or use in the cell.
  • One measurement useful to the radio network controller is how often the codes currently allocated to the high-speed shared channel are being used.
  • the present invention provides measurements from the base station to the radio network controller about the usage of the set of codes currently allocated to a particular channel, like a high speed shared channel. Based on those measurements, the RNC can adjust (if necessary) the code allocation to the high speed shared channel.
  • FIG. 4 shows a graph of base station cell power against time.
  • the radio transmission power for one or more common channels takes up a first portion of the allowed or maximum cell power.
  • On top of the common channel power is the combined radio transmission power currently allocated to the dedicated channels.
  • the hatched portion shows the radio transmission power that can be used by the high-speed shared channel.
  • the combined common and dedicated channel power equals the maximum cell power.
  • the high speed shared channel has no available power, and therefore no throughput, assuming the maximum cell power level is observed.
  • the high speed shared channel uses more than the maximum cell power, signals may be distorted leading to degraded quality of service.
  • HS-DSCH uses all of the remaining transmission power up to the cell maximum.
  • the RNC will always conclude that the cell is operating at full capacity as long as there is a moderate traffic demand on the high-speed downlink shared channel. For the same reason, channel requests will be denied as soon as there is even moderate traffic demand on the high-speed downlink shared channel. Nor is it possible in this situation to determine an accurate congestion level in the cell. Because the high speed shared channel uses the remaining cell power, the total carrier power measurement will always be equal or close to the cell maximum erroneously suggesting that the cell is always fully loaded.
  • the present invention provides a cell transmission power measurement to a radio resource manager that specifically takes into account a high-speed shared channel even where that channel is designed to use the remaining transmission power in a cell up to a cell maximum.
  • the radio network controller is informed when a high speed shared channel has little or no power available because of increasing power demands required by channels other than the high speed shared channel.
  • Other parameters may also be measured at the base station that may be useful to a radio resource controller.
  • One or more base station measurements provided to a radio resource manager allows it to optimally access, allocate, and/or regulate radio resources, like spreading codes and transmission power, to different types of radio channels supported in the cell, including a specialized channel like a high-speed shared channel.
  • Such measurements include one or more of the following: other-channel power, HS-DSCH code usage, transport format usage, average active load, empty buffer, excess power, and/or similar parameters.
  • transmission power is measured for signals transmitted over first radio channels that do not include measurement of a transmission power for signals transmitted over a second radio channel, e.g., a high speed shared channel.
  • CDMA code usage may also be measured for the second channel during a predetermined time period.
  • the first and second channels are downlink radio channels from the CDMA mobile communications network to one or more of the mobile radios.
  • the first radio channels include one or more of the following: one or more dedicated channels, one or more common channels, one or more control channels, and one or more broadcast channels.
  • the second channel is a high speed downlink shared channel.
  • the measured transmission power maybe used to perform radio resource control such as power allocation to the second radio channel and/or the first radio channels, code allocation to the second radio channel and/or first radio channel, congestion control, and admission control.
  • the measurement also alerts the radio resource controller to situations where the power being used by the other channels leaves insufficient or rapidly decreasing power for the HS-DSCH.
  • the radio resource controller may take appropriate action to reallocate power resources to ensure there is sufficient power for the HS-DSCH to function.
  • the predetermined time period includes plural transmission time intervals (TTIs).
  • TTIs transmission time intervals
  • the number of TTIs that a CDMA code is used for the second radio channel during the determined time period is measured.
  • a number of TTIs that a set of the CDMA codes is used for the second radio channel during the predetermined time period may be measured.
  • the CDMA code usage measurement maybe reported in any number of fashions. In one example, the code usage is reported to the resource manager as a histogram.
  • a number of mobile radio users may be measured that currently have data to transmit over the high speed shared channel in a base station buffer at a data transmission scheduling time for the high speed shared channel.
  • the measured number corresponds to an active load and is provided to a radio network controller for use in managing a load on the high speed shared channel.
  • a buffer monitor may be used to measure an amount of data being buffered per high speed shared channel user.
  • a number of high speed shared channel transmission time intervals (TTIs) is determined over a measurement period when the measured amount of buffered data reaches zero or is below a threshold. The measured number can be used to (re)configure the high speed shared channel.
  • An excess power monitor maybe used to measure a first power level actually used for transmission to a mobile radio user over the high speed shared channel and determine a second power level required for reliable transmission to the mobile radio user over the high speed shared channel. The difference between the first and second power levels is calculated and used in allocating resources associated with the high speed shared channel.
  • the present invention enables efficient radio resource management without excessive signaling.
  • a radio resource manager can better control cell congestion, admit new users to the cell, block new users, or even drop existing users, if necessary. Actions can be taken to ensure that maximum power limitations are not exceeded before the maximum power is reached which would otherwise result in unpredictable signaling distortion and poor signal quality.
  • the invention allows the radio resource controller to ensure the high-speed shared channel has enough resources to fulfill its job as a high-speed shared channel.
  • FIG. 1 illustrates conceptually a high speed downlink shared channel
  • FIG. 2 illustrates a code tree
  • FIG. 3 illustrates a time division code division multiplex diagram in conjunction with the high speed downlink shared channel
  • FIG. 4 is a cell power diagram
  • FIG. 5 is a function block diagram illustrating one example embodiment of the present invention in the context of a mobile radio communications system
  • FIG. 6 is a flowchart diagram illustrating radio resource management procedures for a high-speed shared channel in accordance with one example embodiment of the present invention
  • FIG. 7 is flowchart illustrating example other channel power measurement procedures
  • FIG. 8 is a block diagram illustrating one way to perform other channel power measurement
  • FIG. 9 is a flowchart illustrating example code resource measurement procedures
  • FIG. 10 illustrates a code usage/transport format usage measurement
  • FIG. 11 is a graph illustrating certain base station measurements
  • FIG. 12 is a flowchart illustrating example average active load measurement procedures
  • FIG. 13 is a flowchart illustrating example empty buffer measurement procedures.
  • FIG. 14 is a flowchart illustrating example excess power measurement procedures.
  • the present invention finds advantageous, but still example, application to a CDMA mobile communications network such as that shown at reference numeral 10 in FIG. 5.
  • Plural external networks 12 are coupled to a CDMA-based radio access network 14 which, for example, may be a UMTS Terrestrial Radio Access Network (UTRAN).
  • the UTRAN 14 includes one or more radio network controllers (RNC) 16 which communicate over a suitable interface.
  • RNC 16 may include, among other things, an admissions controller 18 , a cell load controller 20 , and radio resource controller 22 .
  • Each of the controller entities maybe implemented in hardware, software, or a combination of both.
  • Each RNC 16 is coupled to plural radio base stations (BS) 24 .
  • BS radio base stations
  • Each radio base station 24 includes, among other things, radio transceiving circuitry 26 , one or more transmit power monitors 27 , a high speed channel code usage monitor 28 , a transport format usage monitor 29 , average active load monitor 30 , empty buffer monitor 31 , excess power monitor 32 , and a high speed channel controller 33 .
  • the radio base station 24 communicates over a radio interface with various mobile stations identified as user equipments (UE) 34 . Communications over the radio interface are made using spreading codes, i.e., one or more spreading codes corresponds to a radio channel.
  • UE user equipments
  • System 10 includes different types of radio channels: one or more dedicated channels, one or more common channels, one or more broadcast channels, and a high speed shared channel such as a high speed downlink shared channel (HS-DSC.
  • a high speed downlink shared channel such as a high speed downlink shared channel (HS-DSC.
  • HS-DSC high speed downlink shared channel
  • Base station 24 has a particular number of spreading codes available for use. See the example code tree with a spreading factor of 16 shown in FIG. 2. A certain number of the available spreading codes will be allocated to the high speed downlink shared channel, and the remaining codes are allocated to the other channels. The present invention strives to allocate the optimal number of spreading codes to the high speed downlink shared channel and to the other channels.
  • the optimal allocation ensures that a desired data rate, throughput, and/or quality of service is/are provided over the high speed downlink shared channel while efficiently using all of the codes allocated to the high speed downlink shared channel.
  • the high speed channel code usage monitor 28 provides the RNC 16 with actual spreading code usage for the high speed downlink shared channel over a predetermined period of time.
  • each base station cell is assigned a maximum downlink radio transmission power level. Transmission power is distributed amongst the various channels in the cell. In the power distribution shown in FIG. 4, the common channels use a certain transmission power, the dedicated channels are allocated transmission power on top of the common channel power, and the high speed channel uses whatever transmission power remains up to the maximum power established for that cell.
  • the high speed channel controller 32 may perform the various functions described above for a the high speed downlink shared channel such as shared channel transmission, higher order modulation, link adaptation, radio channel dependent scheduling, and hybrid-ARQ with soft combining. Particularly, the high speed channel controller 32 controls fast scheduling of transmissions (and retransmissions) over the high speed downlink shared channel in each transmission time interval (TTI).
  • TTI transmission time interval
  • the high speed controller 32 preferably allocates all of the codes allocated to the high speed downlink channel, e.g., twelve codes in the code tree of FIG. 4, to a single mobile radio UE connection in one TTI.
  • code division multiplexing may also be employed by the radio resource controller 22 as explained above with regard to FIG. 3.
  • the admissions controller 18 to perform admissions control the load controller 20 to perform load control, and the radio resource controller 22 to optimally manage radio resources in each cell, the RNC 16 must receive relevant and accurate measurement information from the base station 24 .
  • one or more measurements are made and reported by the base station and used by a resource controller, which in this non-limiting example, is located the RNC.
  • a resource controller which in this non-limiting example, is located the RNC.
  • the base station measures one or more of the following parameters: “other” channel power (other than HS-DSCH channel power), a HS-DSCH code usage, transport format usage, average active load, empty buffer, and excess power.
  • the base station sends to the RNC one or more of the base station measurements, and the resource controller 22 in the RNC uses that measurement information to perform power allocation and perhaps power control on the dedicated channels based upon the reported measurements. It also adjusts spreading code allocation adjustments based upon the reported measurements.
  • the admissions controller 18 uses these measurements as a factor in determining whether to admit new call requests.
  • the load controller 20 determines whether congestion/load control is required in this cell (block 42 ).
  • Other Channel Power is transmission power attributable to transmissions made over one or more channels other than the high speed downlink shared channel. In this example, it includes the power of all channels but the high speed downlink shared channel. These channels may include, for example, one or more dedicated channels dedicated to a connection between the UTRAN 14 and the UEs 34 , one or more common channels shared by the mobile radios, one or more control channels, and one or more broadcast channels. Other channel power may be measured by the power monitor 27 in the example manner described in conjunction with FIG. 8.
  • Example Other Channel Power Measurement procedures are illustrated in flowchart form in FIG. 7.
  • the total power of all (or only some) downlink channels from the base station is measured with the exception of the transmission power of the high speed downlink shared channel (block 50 ).
  • the total power measurement(s) is(are) forwarded to the RNC and used by one or more resource controllers like the radio resource controller 22 , the load controller 20 , and the admission controller 18 (block 52 ).
  • the RNC (or the base station) determines the total power for the downlink channels except the high-speed downlink shared channel (block 54 ).
  • the power allocated to the high speed downlink shared channel is controlled so that the remaining power in the base station cell is used without exceeding (at least not significantly) the maximum power designed for that cell (block 56 ).
  • Other power control operations such as power control for one or more of the dedicated channels, congestion control, and/or admission control maybe performed using the total power measurement.
  • the base station preferably notifies the RNC when there is little or no transmission power available for the high speed downlink shared channel.
  • the transmitted signal is the sum of the signals from all individual physical channels, including common physical channels, dedicated physical channels, and shared physical channels (in particular the high-speed shared physical channel).
  • the preferred, example implementation is to sum all signals except from the shared physical channel(s).
  • the other channel power is measured by taking the average of the squared chip magnitudes of the signal sum.
  • the signal to be transmitted is formed by adding the HS-DSCH signal to that signal sum.
  • the power measurement can be formed as a sum of several individual power measurements made on individual channel signals, or on sums of subsets of non-shared channel signals. This can be advantageous if the summing of the signals in an implementation must be done in a certain order different from the one described above. Individual power measurements are made by averaging the squared chip magnitudes of the individual channel signals or of the subsets.
  • the power measurements may be generated more easily based on knowledge of the configured transmission power and the current usage of each channel.
  • the measured power value of an individual channel signal is then formed as the product of the squared gain factor for that signal and the activity factor for that channel.
  • the activity factor is the ratio of the number of actually transmitted symbols to the total number of symbols.
  • FIG. 8 shows one example way in which other channel power may be measured at the base station.
  • the other channels include dedicated physical channels (DPCH) 1 , 2 , . . . , N and a common channel (CC).
  • DPCH dedicated physical channels
  • CC common channel
  • Each other channel signal is multiplied in a corresponding multiplier 60 , 62 , 64 , and 66 by an appropriate gain or power control value determined.
  • the power control (PC) signals are summed together in summer 68 , and the total power is determined in power detector 70 by taking the average of the squared chip magnitudes of the signal sum.
  • the measured power of an individual channel signal may be determined as the product of the squared gain or power control (PC) factor for that signal and an activity factor for that channel, defined above.
  • PC squared gain or power control
  • the total other channel power is provided to the RNC as indicated.
  • the total other channel power is also summed in a summer 74 with the power of the high speed downlink shared channel.
  • the HS-DSCH is not power controlled in the same manner as dedicated channels, the power must be set according to the power needed for other channels. Because the HS-DSCH uses the remaining power, which varies over time, the HS-DSCH power also vanes. Thus, the PC factor for the HS-DSCH depends on the measured, non-HS-DSCH power.
  • the sum of all downlink channels including the HS-DSCH is processed in the signal and radio processing block 76 and transmitted via antenna 78 .
  • HS-DSCH Code Usage/Transport Format Usage The high speed channel code usage monitor 28 measures the HS-DSCH code usage over a predetermined time period.
  • a code resource/transport format usage measurement procedure is illustrated in flowchart form in FIG. 9.
  • TTI high speed downlink shared channel transmission time interval
  • the transport format specifies a particular number of spreading codes up to the allocated number of codes for use by the high speed downlink shared channel (block 80 ).
  • the high speed channel controller 33 may also decide not to transmit over the high speed downlink shared channel during a TTI which would correspond to using zero spreading codes.
  • the high speed channel code usage monitor 28 measures a number of transmission time intervals (TTIs) that each spreading code is used by the high speed downlink shared channel.
  • TTIs transmission time intervals
  • the monitor 28 may measure a number of TTIs that each particular set of codes is used by the high speed downlink shared channel (block 82 ).
  • An example of the latter might be that a set of codes including codes 1 through 6 is used in only two TTIs.
  • a set of codes including just codes 1 and 2 is used in twenty-five TTIs.
  • a transport format usage monitor 29 may additionally or alternatively measure a number TTI's that each transport format is used.
  • the code usage data detected by the monitor 28 and/or the transport format usage data detected by the monitor 29 for the predetermined time period is provided to the RNC.
  • the code usage information and/or the transport format usage data may be delivered in the form of a usage histogram.
  • the radio resource controller (RRC) 22 in the RNC 16 determines whether to change the code allocation for the high speed downlink shared channel based on that code usage data or the transport format based on that transport format usage data (block 84 ).
  • FIG. 10 gives an example histogram mapping spreading codes 1 through 12 allocated for each two millisecond TTI for the high speed downlink shared channel, the high speed channel controller 32 selects a transport format.
  • the entire histogram need not be sent over the radio interface but some abbreviated form of the histogram information could be transmitted instead.
  • the code usage measurement need not include all possible number of codes. Alternatively, the number of times any subset of codes is used, for example 0-3, 4-7, 8-11, 12-15, etc., maybe measured. As another alternative, the proportion of HS-DSCH TTI's for each code subset may be measured, or the time or proportion of time that each code subset is used.
  • the HS-DSCH code usage measurement may be generalized and expressed statistically as a function of the transport formats used. Based on certain available information, such as buffer status, channel conditions, available power resources, etc., the high speed channel controller 33 selects one of the transport formats. During a defined time interval, the base station transport format usage monitor 29 counts the number of times each transport format is used for the HS-DSCH. The result is a two-dimensional histogram describing for each transport format the number of times this transport format is used. The measurement can either be the two-dimensional histogram or a function thereof.
  • FIG. 11 illustrates an example of forming statistics over the set of possible transport formats.
  • the numbers shown in the graph represent the transport block size (payload).
  • the x-axis is the number of spreading codes used for the HS-DSCH.
  • the y-axis represents the signal-to-noise ratio required for transmission expressed as a carrier-to-interference (C/I) ratio.
  • the dotted line exemplifies a group of transport formats and is described in the text.
  • groups of transport formats are defined and only the number of times any transport format within this group is used is reported.
  • a dotted line illustrates an example of such a group of transport formats including for each number of spreading codes, the transport format with the largest payload. Frequent use of transport formats in this group indicate the HS-DSCH is limited in the number of spreading codes rather than in the available energy. If possible, the RNC should assign more spreading codes to the HS-DSCH in order to increase its capacity.
  • the fraction of TTIs in each transport format group can be measured or the proportion of time that each transport format group is used.
  • a relative measurement e.g., the number of times one transport format group is used in relation to another transport format group, may be used.
  • the statistics may be collected and reported individually for several data streams with different priorities. Individual statistics for each priority level used for packet data streams for the HS-DSCH are reported. In this situation, the RNC may be configured to act only on measurements for streams for which it wants to guarantee a certain quality of service.
  • the active load for the HS-DSCH at a certain time instant is the number of users the high speed channel controller 33 can select between at that time instant.
  • the average active load monitor 30 detects a number of users currently having data to transmit over the HS-DSCH at the time of the scheduling decision (block 90 ). For example, if 20 users have data to transmit over the HS-DSCH in the base station buffers at the time when the high speed channel controller 33 makes a scheduling decision, i.e., selects to which user(s) to transmit to, the active load at this time is 20.
  • the detected numbers collected over a preset time interval are averaged (block 92 ) and provided to the RNC (block 94 ).
  • the average active load can be used for admission control, for example, to block users requesting an HS-DSCH if the average active load exceeds a certain limit. Admitting them in this situation would excessively degrade the overall performance of the HS-DSCH.
  • the average active load can be defined per priority level.
  • the high speed channel controller 33 selects a suitable transport format, including the payload size, for the user(s) assigned to the HS-DSCH for the upcoming TTI.
  • the payload size depends on the radio channel quality, i.e., a higher (lower) channel quality supports a larger (smaller) payload, and on the amount of data available in the base station buffers.
  • the buffer monitor 31 detects an amount of data being buffered per DS-DSCH user for transmission (block 100 ). The amount of buffered data awaiting transmission for a certain UE forms an upper limit for the payload size, and thus, for the transport format selected.
  • the HS-DSCH is underutilized, and the system is traffic-limited rather than limited by the radio environment. This situation may also indicate a need for more code multiplexing, (e.g., configuration of additional HS-shared control channels), especially if the transport format statistics described above indicate that transport formats with small payloads are used frequently.
  • the buffer monitor 31 determines the empty buffer measurement as the number of TTIs in a defined measurement interval where less data-was transmitted than would have been transmitted if the user's data buffer had not been emptied of if the amount buffered is less than a threshold amount (block 102 ).
  • the empty buffer measurement can either be defined for all traffic regardless of priority, or it can be defined individually per priority level.
  • the empty buffer measurement is provided to the RNC for use, for example, in reconfiguring transport format, code allocation, etc., for the HS-DSCH (block 104 ).
  • Excess power is the difference between the power actually used for a transmission to a user and the power required for sufficiently reliable transmission that user with the selected transport format.
  • the excess power monitor 32 detects power actually used for transmission to a user over the HS-DSCH (block 110 ).
  • the excess power monitor 32 detects the power required for reliable transmission to that user over the HS-DSCH (block 112 ) and determines the difference (block 114 ). If the difference is positive, the excess power monitor 32 sends the excess power to the RNC for possible allocation of more radio resources, e.g., spreading codes, to the HS-DSCH.
  • An excess power example is illustrated in the graph shown in FIG. 11.
  • the lower circle represents the transport format selected at a certain scheduling instant, and the upper circle represents the power actually used for the transmission with the selected transport format.
  • the excess power is 4 dB.
  • the excess power measurement is the average excess power used during a defined measurement time interval, e.g., 100 ms.
  • a high excess power measurement indicates that the HS-DSCH is not operating in the power-limited region. Power can be used more efficiently by assigning more HS-DSCH codes to other channels.
  • the excess power measurement may be defined per transport format or per transport format group.
  • the transport format statistics described above can be used to generate “transport format and resource usage” statistics. So in addition to counting the number of times a certain transport format is used, the average excess power for this transport format is also recorded.

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AU2003224581A AU2003224581A1 (en) 2002-05-13 2003-04-29 Radio resource management for a high speed shared channel
PCT/SE2003/000694 WO2003096571A1 (fr) 2002-05-13 2003-04-29 Gestion de ressources radio pour canal partage grande vitesse
DE60326566T DE60326566D1 (de) 2002-05-13 2003-04-29 Funkbetriebsmittelverwaltung für einen schnellen gemeinsam benutzten kanal
CN038109115A CN1653718B (zh) 2002-05-13 2003-04-29 对高速共享信道的无线电资源管理
EP03721255A EP1504545B1 (fr) 2002-05-13 2003-04-29 Gestion de ressources radio pour canal partage grande vitesse
AT03721255T ATE425594T1 (de) 2002-05-13 2003-04-29 Funkbetriebsmittelverwaltung für einen schnellen gemeinsam benutzten kanal
JP2004504415A JP4295206B2 (ja) 2002-05-13 2003-04-29 高速共有チャネル用の無線リソース管理
US13/712,174 US9265009B2 (en) 2002-05-13 2012-12-12 Radio resource management for a high-speed shared channel
US15/004,407 US10531399B2 (en) 2002-05-13 2016-01-22 Radio resource management for a high-speed shared channel

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SE0201467A SE0201467D0 (sv) 2002-05-13 2002-05-13 Measurements for radio resource management for high-speed downlink shared channel (HS-DSCH)
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SE0202845A SE0202845D0 (sv) 2002-05-13 2002-09-23 Measurements for radio resource management for high-speed downlink shared channel (HS-DSCH)
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Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040160923A1 (en) * 2003-02-10 2004-08-19 Takahiro Nobukiyo Mobile communication system, base station, radio network controller, and resource allocation control method used therefor
US20050018656A1 (en) * 2003-03-26 2005-01-27 Interdigital Technology Corporation Wireless multi-cell communication system and method for managing resource power to provide high speed downlink packet access services
US20050281244A1 (en) * 2004-06-21 2005-12-22 Nokia Corporation Information transmission in a communications system
US20060088058A1 (en) * 2004-09-29 2006-04-27 Infineon Technologies Ag Data link layer protocol unit, mobile radio devices, mobile radio network control unit and method for reading data from a plurality of data link layer protocol buffer storages
US20060146758A1 (en) * 2004-12-30 2006-07-06 Harris John M Method to facilitate dynamic allocation of spreading code resources
US20070081604A1 (en) * 2005-10-07 2007-04-12 Samsung Electronics Co., Ltd. Apparatus and method for reduced peak-to-average-power ratio in a wireless network
US20070109996A1 (en) * 2005-11-16 2007-05-17 Samsung Electronics Co., Ltd. Apparatus and method for transmitting packets in wireless network
US20070127522A1 (en) * 2005-12-02 2007-06-07 Telefonaktiebolaget Lm Ericsson (Publ) Flow control for low bitrate users on high-speed downlink
US20070135133A1 (en) * 2005-12-08 2007-06-14 Ntt Docomo, Inc. Call admission control device and call admission control method
US20070165620A1 (en) * 2003-11-27 2007-07-19 Koninklijke Philips Electronics N.V. Method and apparatus for supporting downlink joint detection in tdd cdma systems
US20070184863A1 (en) * 2004-03-01 2007-08-09 Nec Corporation Radio base station apparatus and transmission power control method
WO2007094734A1 (fr) * 2006-02-15 2007-08-23 Telefonaktiebolaget Lm Ericsson (Publ) mesures coordonnées de gestion de ressources radio de nœud B
US20070265017A1 (en) * 2005-11-30 2007-11-15 Ntt Docomo, Inc. Call admission control device and call admission control method
US20080002617A1 (en) * 2006-06-30 2008-01-03 Telefonaktiebolaget Lm Ericsson (Publ) Enhanced packet service for telecommunications
US20080014959A1 (en) * 2004-12-03 2008-01-17 Telefonaktiebolaget Lm Ericsson ( Publ) Radio Resource Management Based On Load And Channel Inactivity
US20080075030A1 (en) * 2003-12-17 2008-03-27 Telefonaktiebolaget Lm Ericsson (Publ) Power control method
CN100391305C (zh) * 2004-12-17 2008-05-28 华为技术有限公司 高速下行分组接入的信道资源分配方法
US20080153505A1 (en) * 2005-02-11 2008-06-26 Christofer Lindheimer Apparatus and Method for Dynamically Assigning Orthogonal Codes in a Radio Communication System
US20080186862A1 (en) * 2007-02-05 2008-08-07 Telefonaktiebolaget Lm Ericsson (Publ) Congestion/load indication for high speed packet access
US20080200201A1 (en) * 2005-04-29 2008-08-21 Telefonaktiebolaget Lm Ericsson (Publ) Method and Arrangement For Allocating Power In a Communication Network
CN100415020C (zh) * 2005-10-31 2008-08-27 上海华为技术有限公司 一种高速物理下行共享信道的码资源分配方法
US20080212468A1 (en) * 2006-11-16 2008-09-04 Nokia Corporation Apparatus, methods and computer program products providing estimation of activity factor and enhanced radio resource management
CN101288324A (zh) * 2005-01-21 2008-10-15 艾利森电话股份有限公司 用于无线电资源管理的技术
US20090010269A1 (en) * 2004-11-11 2009-01-08 Peter Larsson Method And Apparatus For Routing Packets
WO2009041883A1 (fr) * 2007-09-26 2009-04-02 Telefonaktiebolaget L M Ericsson (Publ) Programmation de liaison montante améliorée dans un système cellulaire
US20090154400A1 (en) * 2004-10-25 2009-06-18 Nec Corporation Radio network controlling method, radio communication system and radio network controller
US20090196251A1 (en) * 2008-02-06 2009-08-06 At&T Mobility Ii Llc Management of a multi-application mobile carrier tree
US20100087200A1 (en) * 2007-01-19 2010-04-08 Ntt Docomo, Inc. Base station apparatus and communications control method
US20100099427A1 (en) * 2003-10-03 2010-04-22 Fujitsu Limited Virtually Centralized Uplink Scheduling
US7760683B2 (en) 2005-12-08 2010-07-20 Ntt Docomo, Inc. Call admission control device and call admission control method
US7783295B2 (en) 2005-12-08 2010-08-24 Ntt Docomo, Inc. Call admission control device, and call admission control method
US7787377B2 (en) 2006-02-03 2010-08-31 Telefonaktiebolaget Lm Ericsson (Publ) Selective redundancy for Voice over Internet transmissions
US7852855B1 (en) * 2007-06-04 2010-12-14 The United States Of America As Represented By The Secretary Of The Navy Method for controlling multi-user TCP/IP access over a satellite communication channel
US20110096677A1 (en) * 2007-08-10 2011-04-28 Eun-Jung Kim Apparatus and method for controlling uplink dedicated channel in a mobile communication system
US20130128836A1 (en) * 2003-12-23 2013-05-23 Sony Corporation Method and apparatus for power control in a radio communication system
EP2636253A4 (fr) * 2010-11-03 2014-08-20 Ericsson Telefon Ab L M Préservation de la puissance d'un n ud dans un système de communication sans fil
WO2014144079A3 (fr) * 2013-03-15 2015-02-26 Amanna Ashwin Système et procédé pour partage de spectre hétérogène entre des entreprises de téléphonie cellulaire commerciales et des utilisateurs titulaires patrimoniaux dans des réseaux sans fil
US10938369B1 (en) * 2019-10-18 2021-03-02 Amazon Technologies, Inc. Front-end circuitry for coexistence of two radios sharing an antenna and a frequency band
CN113347696A (zh) * 2020-03-02 2021-09-03 华为技术服务有限公司 一种功率分配方法及装置
US11134448B2 (en) * 2004-08-12 2021-09-28 Intellectual Ventures Ii Llc Power control in a wireless network

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0202845D0 (sv) * 2002-05-13 2002-09-23 Ericsson Telefon Ab L M Measurements for radio resource management for high-speed downlink shared channel (HS-DSCH)
DE60315293T2 (de) * 2003-08-11 2008-05-08 Alcatel Lucent Verfahren zur dynamischen Zuordnung von CDMA-Codes zu einer Basisstation
GB2408657B (en) 2003-11-28 2006-04-12 Motorola Inc Radio resource management
CN100508437C (zh) * 2003-12-22 2009-07-01 上海贝尔阿尔卡特股份有限公司 高速下行链路共享信道的信道码动态管理方法
AU2003290484A1 (en) 2003-12-22 2005-07-14 Telefonaktiebolaget Lm Ericsson (Publ) Method and system of radio communications of traffic with different characteristic
SE0402782D0 (sv) * 2004-11-10 2004-11-10 Ericsson Telefon Ab L M Method and arrangement in a telecommunication system
US7613162B2 (en) 2005-01-05 2009-11-03 Nokia Corporation Mobile device, system and method for enhanced channel allocation when radio resource connection is released while in dual transfer mode
WO2006094429A1 (fr) * 2005-03-07 2006-09-14 Zte Corporation Procede de commande d'admission de canal partage descendant a haute vitesse
JP4582327B2 (ja) * 2005-05-10 2010-11-17 日本電気株式会社 無線ネットワーク制御方法および無線通信システム
EP1925177B1 (fr) * 2005-09-16 2017-07-19 Telefonaktiebolaget LM Ericsson (publ) Procédés de dimensionnement améliorés pour le trafic hsdpa
WO2007033528A1 (fr) * 2005-09-23 2007-03-29 Zte Corporation Procede pour changer de canal dans un systeme d’acces de paquets haut debit
CN1960229B (zh) * 2005-11-03 2011-01-05 中兴通讯股份有限公司 高速分组接入系统的码资源动态分配方法
RU2404524C2 (ru) * 2006-01-05 2010-11-20 ЭлДжи ЭЛЕКТРОНИКС ИНК. Передача данных в системе мобильной связи
KR101187076B1 (ko) 2006-01-05 2012-09-27 엘지전자 주식회사 이동 통신 시스템에 있어서 신호 전송 방법
KR101211807B1 (ko) 2006-01-05 2012-12-12 엘지전자 주식회사 이동통신 시스템에서 무선단말의 동기상태 관리방법
EP1969738B1 (fr) 2006-01-05 2014-03-12 LG Electronics Inc. Transmission d'information dans un systeme de communication mobile
KR100912784B1 (ko) 2006-01-05 2009-08-18 엘지전자 주식회사 데이터 송신 방법 및 데이터 재전송 방법
BRPI0706841A8 (pt) 2006-01-05 2018-04-17 Lg Electronics Inc transmissão de dados em um sistema e comunicação móvel
WO2007078171A2 (fr) 2006-01-05 2007-07-12 Lg Electronics Inc. Procede de transmission d'informations en retour dans un systeme de communication sans fil
KR101387475B1 (ko) 2006-03-22 2014-04-22 엘지전자 주식회사 복수의 네트워크 엔터티를 포함하는 이동 통신시스템에서의 데이터 처리 방법
EP2618517B1 (fr) 2006-06-21 2023-08-02 LG Electronics Inc. Procédé de prise en charge de retransmission de données dans un système de communication mobile
EP2092699B1 (fr) * 2006-09-18 2011-12-21 Telefonaktiebolaget L M Ericsson (PUBL) Procédé et agencement concernant une commande d'admission de services à bande large
JP4805080B2 (ja) 2006-09-29 2011-11-02 株式会社エヌ・ティ・ティ・ドコモ 通信制御方法、無線基地局及び無線制御局
US7940721B2 (en) * 2006-12-22 2011-05-10 Alcatel-Lucent Usa Inc. Power overload control method useful with enhanced dedicated channel traffic
CN101272574B (zh) * 2007-03-21 2011-01-05 大唐移动通信设备有限公司 实现通信系统的测量的方法、系统及装置
US20100110977A1 (en) * 2008-11-04 2010-05-06 Broadcom Corporation Management unit network for managing a plurality of multiservice communication devices
CN108156265B (zh) 2010-11-22 2019-03-26 杭州硕文软件有限公司 一种应用程序控制方法及移动设备
WO2012071705A1 (fr) * 2010-11-30 2012-06-07 富士通株式会社 Procédé et équipement utilisateur permettant de déclencher un rapport de marge de puissance
WO2013015835A1 (fr) 2011-07-22 2013-01-31 Seven Networks, Inc. Optimisation de trafic d'application mobile
US9544810B2 (en) * 2011-11-14 2017-01-10 T-Mobile Usa, Inc. Device-based architecture for self organizing networks
EP4216599B1 (fr) 2013-06-11 2025-02-19 Seven Networks, LLC Déchargement de trafic d'application vers un canal de communication partagé pour optimisation de signal dans un réseau sans fil pour trafic utilisant des protocoles propriétaires et non propriétaires
EP3888395B1 (fr) 2018-11-26 2024-01-03 Telefonaktiebolaget Lm Ericsson (Publ) Commande de puissance de transmission destinée à une station de base radioélectrique
CN114339712B (zh) * 2021-12-29 2024-05-07 广州艾美网络科技有限公司 无线麦克风的配对方法和装置、无线麦克风管理系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6347091B1 (en) * 1998-06-19 2002-02-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for dynamically adapting a connection state in a mobile communications system
US7027420B2 (en) * 2001-07-24 2006-04-11 Nokia Mobile Phones Ltd. Method for determining whether to perform link adaptation in WCDMA communications
US7050761B2 (en) * 2001-02-28 2006-05-23 Nec Corporation Mobile communication system, transmission mode switching method, and recording medium having transmission mode switching method recorded thereon

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5918174A (en) * 1996-03-29 1999-06-29 Ericsson, Inc. Circuitry and method for initiating communication between communication stations of a radio communication system
US5842114A (en) * 1997-02-12 1998-11-24 Interdigital Technology Corporation Global channel power control to minimize spillover in a wireless communication environment
US6278701B1 (en) * 1998-07-10 2001-08-21 Verizon Laboratories Inc. Capacity enhancement for multi-code CDMA with integrated services through quality of services and admission control
JP3512742B2 (ja) 1998-12-07 2004-03-31 株式会社エヌ・ティ・ティ・ドコモ 移動データ通信のトラフィック制御方法、移動局装置および基地局装置
US6434365B1 (en) * 1998-12-29 2002-08-13 Thomson Licensing Sa Providing initial power estimate to wireless telephone handsets
KR100305764B1 (ko) * 1999-06-21 2001-11-01 서평원 무선가입자망 시스템 순방향 전력비 제어장치 및 방법
US20030012217A1 (en) * 1999-10-29 2003-01-16 Christoffer Andersson Channel-type switching to a common channel based on common channel load
US6912228B1 (en) 2000-04-14 2005-06-28 Telefonaktiebolaget L M Ericsson (Publ) Power control in a radio data communication system adapted using transmission load
US6975609B1 (en) * 2000-05-30 2005-12-13 Telefonaktiebolaget Lm Ericsson (Publ) Dynamic call admission
JP3787496B2 (ja) * 2001-01-26 2006-06-21 株式会社エヌ・ティ・ティ・ドコモ 呼受付制御方法、通信システム、及び基地局装置
JP2002261687A (ja) * 2001-02-28 2002-09-13 Nec Corp 移動通信システム及びその送信電力制御方法並びにそれに使用する基地局
GB0108516D0 (en) * 2001-04-04 2001-05-23 Nokia Corp Power control
US7046640B2 (en) * 2001-06-29 2006-05-16 Telefonaktiebolaget Lm Ericsson (Publ) Software analysis tool for CDMA system
SE0202845D0 (sv) * 2002-05-13 2002-09-23 Ericsson Telefon Ab L M Measurements for radio resource management for high-speed downlink shared channel (HS-DSCH)
JP4425909B2 (ja) 2003-03-26 2010-03-03 インターデイジタル テクノロジー コーポレーション リソースパワーを管理することにより高速ダウンリンクパケットアクセスサービスを提供する無線マルチセル通信システムおよび方法
FI20031383A0 (fi) 2003-09-25 2003-09-25 Nokia Corp Menetelmä ja pakettiradiojärjestelmä kontrolloida siirtoyhteyden sovitusta
US20050100038A1 (en) 2003-11-12 2005-05-12 Interdigital Technology Corporation Wireless communication method and apparatus for efficiently providing channel quality information to a Node-B downlink scheduler
US7756543B2 (en) 2005-09-09 2010-07-13 Telefonaktiebolaget Lm Ericsson (Publ) High speed shared radio channel transmit power control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6347091B1 (en) * 1998-06-19 2002-02-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for dynamically adapting a connection state in a mobile communications system
US7050761B2 (en) * 2001-02-28 2006-05-23 Nec Corporation Mobile communication system, transmission mode switching method, and recording medium having transmission mode switching method recorded thereon
US7027420B2 (en) * 2001-07-24 2006-04-11 Nokia Mobile Phones Ltd. Method for determining whether to perform link adaptation in WCDMA communications

Cited By (87)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8000289B2 (en) * 2003-02-10 2011-08-16 Nec Corporation Mobile communication system, base station, radio network controller, and resource allocation control method used therefor
US20040160923A1 (en) * 2003-02-10 2004-08-19 Takahiro Nobukiyo Mobile communication system, base station, radio network controller, and resource allocation control method used therefor
US20050018656A1 (en) * 2003-03-26 2005-01-27 Interdigital Technology Corporation Wireless multi-cell communication system and method for managing resource power to provide high speed downlink packet access services
US9173176B2 (en) 2003-03-26 2015-10-27 Interdigital Technology Corporation Wireless multi-cell communication system and method for managing resource power to provide high speed downlink packet access services
US8374190B2 (en) * 2003-03-26 2013-02-12 Interdigital Technology Corporation Wireless communication method and apparatus for providing high speed downlink packet access services
US20100099427A1 (en) * 2003-10-03 2010-04-22 Fujitsu Limited Virtually Centralized Uplink Scheduling
US8059596B2 (en) * 2003-10-03 2011-11-15 Fujitsu Limited Virtually centralized uplink scheduling
US20100142469A1 (en) * 2003-10-03 2010-06-10 Fujitsu Limited Virtually Centralized Uplink Scheduling
US20100098018A1 (en) * 2003-10-03 2010-04-22 Fujitsu Limited Virtually Centralized Uplink Scheduling
US20100098017A1 (en) * 2003-10-03 2010-04-22 Fujitsu Limited Virtually Centralized Uplink Scheduling
US8184583B2 (en) 2003-10-03 2012-05-22 Fujitsu Limited Virtually centralized uplink scheduling
US8160005B2 (en) 2003-10-03 2012-04-17 Fujitsu Limited Virtually centralized uplink scheduling
US8054794B2 (en) 2003-10-03 2011-11-08 Fujitsu Limited Virtually centralized uplink scheduling
US8204024B2 (en) * 2003-11-27 2012-06-19 St-Ericsson Sa Method and apparatus for supporting downlink joint detection in TDD CDMA systems
US20070165620A1 (en) * 2003-11-27 2007-07-19 Koninklijke Philips Electronics N.V. Method and apparatus for supporting downlink joint detection in tdd cdma systems
US7899484B2 (en) * 2003-12-17 2011-03-01 Telefonaktiebolaget Lm Ericsson (Publ) Power control method
US20080075030A1 (en) * 2003-12-17 2008-03-27 Telefonaktiebolaget Lm Ericsson (Publ) Power control method
US9326289B2 (en) * 2003-12-23 2016-04-26 Sony Corporation Method and apparatus for power control in a radio communication system
US20130128836A1 (en) * 2003-12-23 2013-05-23 Sony Corporation Method and apparatus for power control in a radio communication system
US20070184863A1 (en) * 2004-03-01 2007-08-09 Nec Corporation Radio base station apparatus and transmission power control method
US7457632B2 (en) * 2004-03-01 2008-11-25 Nec Corporation Radio base station apparatus and transmission power control method
US8009652B2 (en) * 2004-06-21 2011-08-30 Nokia Corporation Information transmission in a communications system
US20050281244A1 (en) * 2004-06-21 2005-12-22 Nokia Corporation Information transmission in a communications system
US11134448B2 (en) * 2004-08-12 2021-09-28 Intellectual Ventures Ii Llc Power control in a wireless network
US11412459B2 (en) 2004-08-12 2022-08-09 Intellectual Ventures Ii Llc Power control in a wireless network
US11523351B2 (en) 2004-08-12 2022-12-06 Intellectual Ventures Ii Llc Power control in a wireless network
US11729727B2 (en) 2004-08-12 2023-08-15 Intellectual Ventures Ii Llc Power control in a wireless network
US7839892B2 (en) * 2004-09-29 2010-11-23 Infineon Technologies Ag Data link layer protocol unit
US20060088058A1 (en) * 2004-09-29 2006-04-27 Infineon Technologies Ag Data link layer protocol unit, mobile radio devices, mobile radio network control unit and method for reading data from a plurality of data link layer protocol buffer storages
US20090154400A1 (en) * 2004-10-25 2009-06-18 Nec Corporation Radio network controlling method, radio communication system and radio network controller
US8305969B2 (en) * 2004-10-25 2012-11-06 Nec Corporation Radio network controlling method, radio communication system and radio network controller
US20090010269A1 (en) * 2004-11-11 2009-01-08 Peter Larsson Method And Apparatus For Routing Packets
US8139587B2 (en) * 2004-11-11 2012-03-20 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for routing packets
US20080014959A1 (en) * 2004-12-03 2008-01-17 Telefonaktiebolaget Lm Ericsson ( Publ) Radio Resource Management Based On Load And Channel Inactivity
US8385938B2 (en) * 2004-12-03 2013-02-26 Telefonaktiebolaget L M Ericsson (Publ) Radio resource management based on load and channel inactivity
CN100391305C (zh) * 2004-12-17 2008-05-28 华为技术有限公司 高速下行分组接入的信道资源分配方法
WO2006073688A1 (fr) * 2004-12-30 2006-07-13 Motorola, Inc. Procede facilitant l'attribution dynamique de ressources de codes d'etalement
US20060146758A1 (en) * 2004-12-30 2006-07-06 Harris John M Method to facilitate dynamic allocation of spreading code resources
CN101288324A (zh) * 2005-01-21 2008-10-15 艾利森电话股份有限公司 用于无线电资源管理的技术
US8154982B2 (en) * 2005-02-11 2012-04-10 Telefonaktiebolaget Lm Ericsson (Publ) Apparatus and method for dynamically assigning orthogonal codes in a radio communication system
US20080153505A1 (en) * 2005-02-11 2008-06-26 Christofer Lindheimer Apparatus and Method for Dynamically Assigning Orthogonal Codes in a Radio Communication System
US8576694B2 (en) 2005-02-11 2013-11-05 Telefonaktiebolaget L M Ericsson (Publ) Apparatus and method for dynamically assigning orthogonal codes in a radio communication system
US20080200201A1 (en) * 2005-04-29 2008-08-21 Telefonaktiebolaget Lm Ericsson (Publ) Method and Arrangement For Allocating Power In a Communication Network
US7904105B2 (en) * 2005-04-29 2011-03-08 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for allocating power in a communication network
US8149969B2 (en) * 2005-10-07 2012-04-03 Samsung Electronics Co., Ltd. Apparatus and method for reduced peak-to-average-power ratio in a wireless network
US20070081604A1 (en) * 2005-10-07 2007-04-12 Samsung Electronics Co., Ltd. Apparatus and method for reduced peak-to-average-power ratio in a wireless network
CN100415020C (zh) * 2005-10-31 2008-08-27 上海华为技术有限公司 一种高速物理下行共享信道的码资源分配方法
EP1788756A1 (fr) * 2005-11-16 2007-05-23 Samsung Electronics Co., Ltd. Appareil et procédé pour la transmission de paquets de données dans un réseau sans fil
US20070109996A1 (en) * 2005-11-16 2007-05-17 Samsung Electronics Co., Ltd. Apparatus and method for transmitting packets in wireless network
US7986714B2 (en) 2005-11-16 2011-07-26 Samsung Electronics Co., Ltd. Apparatus and method for transmitting packets in wireless network
US20070265017A1 (en) * 2005-11-30 2007-11-15 Ntt Docomo, Inc. Call admission control device and call admission control method
US8099102B2 (en) 2005-11-30 2012-01-17 Ntt Docomo, Inc. Call admission control device and call admission control method
US7564788B2 (en) * 2005-12-02 2009-07-21 Telefonaktiebolaget Lm Ericsson (Publ) Flow control for low bitrate users on high-speed downlink
US20070127522A1 (en) * 2005-12-02 2007-06-07 Telefonaktiebolaget Lm Ericsson (Publ) Flow control for low bitrate users on high-speed downlink
US7783295B2 (en) 2005-12-08 2010-08-24 Ntt Docomo, Inc. Call admission control device, and call admission control method
US7760683B2 (en) 2005-12-08 2010-07-20 Ntt Docomo, Inc. Call admission control device and call admission control method
US20070135133A1 (en) * 2005-12-08 2007-06-14 Ntt Docomo, Inc. Call admission control device and call admission control method
US7899459B2 (en) 2005-12-08 2011-03-01 Ntt Docomo, Inc. Call admission control device and call admission control method
US7787377B2 (en) 2006-02-03 2010-08-31 Telefonaktiebolaget Lm Ericsson (Publ) Selective redundancy for Voice over Internet transmissions
US20090036092A1 (en) * 2006-02-15 2009-02-05 Johan Johansson Coordinated node b radio resource management measurements
WO2007094734A1 (fr) * 2006-02-15 2007-08-23 Telefonaktiebolaget Lm Ericsson (Publ) mesures coordonnées de gestion de ressources radio de nœud B
US8626166B2 (en) 2006-02-15 2014-01-07 Telefonaktiebolaget L M Ericsson (Publ) Coordinated node b radio resource management measurements
US9386596B2 (en) 2006-06-30 2016-07-05 Telefonaktiebolaget Lm Ericsson (Publ) Enhanced packet service for telecommunications
US20080002646A1 (en) * 2006-06-30 2008-01-03 Telefonaktiebolaget Lm Ericsson (Publ) Enhancing coverage for high speed downlink packet access (hsdpa) channel
US8422435B2 (en) 2006-06-30 2013-04-16 Telefonaktiebolaget L M Ericsson (Publ) Enhancing coverage for high speed downlink packet access (HSDPA) channel
US20080002617A1 (en) * 2006-06-30 2008-01-03 Telefonaktiebolaget Lm Ericsson (Publ) Enhanced packet service for telecommunications
US20080212468A1 (en) * 2006-11-16 2008-09-04 Nokia Corporation Apparatus, methods and computer program products providing estimation of activity factor and enhanced radio resource management
US7860000B2 (en) * 2006-11-16 2010-12-28 Nokia Corporation Apparatus, methods and computer program products providing estimation of activity factor and enhanced radio resource management
US20100087200A1 (en) * 2007-01-19 2010-04-08 Ntt Docomo, Inc. Base station apparatus and communications control method
EP2124468A4 (fr) * 2007-01-19 2013-10-16 Ntt Docomo Inc Dispositif de station de base et procédé de commande de communication
AU2007344053B2 (en) * 2007-01-19 2013-03-14 Ntt Docomo, Inc. Base station apparatus and communications control method
US8310948B2 (en) * 2007-01-19 2012-11-13 Ntt Docomo, Inc. Base station apparatus and communications control method
EP2123069A4 (fr) * 2007-02-05 2014-03-05 Ericsson Telefon Ab L M Indication d'encombrement/charge pour l'accès par paquets haute vitesse
US8755270B2 (en) * 2007-02-05 2014-06-17 Telefonaktiebolaget L M Ericsson (Publ) Congestion/load indication for high speed packet access
US20080186862A1 (en) * 2007-02-05 2008-08-07 Telefonaktiebolaget Lm Ericsson (Publ) Congestion/load indication for high speed packet access
US7852855B1 (en) * 2007-06-04 2010-12-14 The United States Of America As Represented By The Secretary Of The Navy Method for controlling multi-user TCP/IP access over a satellite communication channel
US20110096677A1 (en) * 2007-08-10 2011-04-28 Eun-Jung Kim Apparatus and method for controlling uplink dedicated channel in a mobile communication system
TWI426755B (zh) * 2007-09-26 2014-02-11 Ericsson Telefon Ab L M 改善蜂巢式系統中之上行調度
WO2009041883A1 (fr) * 2007-09-26 2009-04-02 Telefonaktiebolaget L M Ericsson (Publ) Programmation de liaison montante améliorée dans un système cellulaire
US20090196251A1 (en) * 2008-02-06 2009-08-06 At&T Mobility Ii Llc Management of a multi-application mobile carrier tree
US8831554B2 (en) * 2008-02-06 2014-09-09 At&T Mobility Ii Llc Management of a multi-application mobile carrier tree
US8483650B2 (en) * 2008-02-06 2013-07-09 At&T Mobility Ii Llc Management of a multi-application mobile carrier tree
US9014746B2 (en) 2010-11-03 2015-04-21 Telefonaktiebolaget L M Ericsson (Publ) Conserving the power of a node in a wireless communication system
EP2636253A4 (fr) * 2010-11-03 2014-08-20 Ericsson Telefon Ab L M Préservation de la puissance d'un n ud dans un système de communication sans fil
WO2014144079A3 (fr) * 2013-03-15 2015-02-26 Amanna Ashwin Système et procédé pour partage de spectre hétérogène entre des entreprises de téléphonie cellulaire commerciales et des utilisateurs titulaires patrimoniaux dans des réseaux sans fil
US10938369B1 (en) * 2019-10-18 2021-03-02 Amazon Technologies, Inc. Front-end circuitry for coexistence of two radios sharing an antenna and a frequency band
CN113347696A (zh) * 2020-03-02 2021-09-03 华为技术服务有限公司 一种功率分配方法及装置

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US10531399B2 (en) 2020-01-07
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US20130100844A1 (en) 2013-04-25
JP4295206B2 (ja) 2009-07-15
DE60326566D1 (de) 2009-04-23
JP2005525743A (ja) 2005-08-25
US9265009B2 (en) 2016-02-16
US20190387526A9 (en) 2019-12-19
SE0202845D0 (sv) 2002-09-23
AU2003224581A1 (en) 2003-11-11
US20160157236A1 (en) 2016-06-02
WO2003096571A1 (fr) 2003-11-20
CN1653718A (zh) 2005-08-10
WO2003096571A8 (fr) 2004-04-22
EP1504545B1 (fr) 2009-03-11
ATE425594T1 (de) 2009-03-15

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