GB2491367B - Methods and apparatus for determining participants in coordinated multi-point transmission - Google Patents

Methods and apparatus for determining participants in coordinated multi-point transmission

Info

Publication number
GB2491367B
GB2491367B GB1109109.7A GB201109109A GB2491367B GB 2491367 B GB2491367 B GB 2491367B GB 201109109 A GB201109109 A GB 201109109A GB 2491367 B GB2491367 B GB 2491367B
Authority
GB
United Kingdom
Prior art keywords
transmission
propagation delay
point
delay variation
transmission point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
GB1109109.7A
Other versions
GB2491367A (en
GB201109109D0 (en
Inventor
Timo E Roman
Tommi T Koivisto
Mihai Enescu
Karol Schober
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renesas Electronics Corp
Original Assignee
Renesas Mobile Corp
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 Renesas Mobile Corp filed Critical Renesas Mobile Corp
Priority to GB1109109.7A priority Critical patent/GB2491367B/en
Publication of GB201109109D0 publication Critical patent/GB201109109D0/en
Publication of GB2491367A publication Critical patent/GB2491367A/en
Application granted granted Critical
Publication of GB2491367B publication Critical patent/GB2491367B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
    • H04B17/104—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof of other parameters, e.g. DC offset, delay or propagation times
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
    • H04L1/0018—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement based on latency requirement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)

Abstract

This application is concerned with communication using coordinated multi-point transmission (CoMP). A user equipment (UE) receives a first transmission from a first transmission point (e.g. a base station) and a second transmission from a second transmission point and determines the propagation delay variation between the two transmissions. In one embodiment the UE reports the propagation delay variation information to the first transmission point or to a network manager for controlling the transmission points. The received propagation delay variation information is then evaluated and used to determine whether the second transmission point is acceptable as a participant in a cooperative multi-point joint processing transmission to the UE. Alternatively, the UE may itself determine whether the propagation delay experienced by the second transmission point is excessive, and report such to the network manager. In another embodiment, a determination of propagation delay variation is made for each of a plurality of pairs of transmission points and the UE may report when the overall spread in propagation delay variation is excessive. In yet another embodiment propagation delay variation measurements may be made on a received CoMP joint processing transmission to confirm whether the propagation delay variations lie within acceptable limits.
GB1109109.7A 2011-05-31 2011-05-31 Methods and apparatus for determining participants in coordinated multi-point transmission Active GB2491367B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1109109.7A GB2491367B (en) 2011-05-31 2011-05-31 Methods and apparatus for determining participants in coordinated multi-point transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1109109.7A GB2491367B (en) 2011-05-31 2011-05-31 Methods and apparatus for determining participants in coordinated multi-point transmission

Publications (3)

Publication Number Publication Date
GB201109109D0 GB201109109D0 (en) 2011-07-13
GB2491367A GB2491367A (en) 2012-12-05
GB2491367B true GB2491367B (en) 2013-05-08

Family

ID=44310636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1109109.7A Active GB2491367B (en) 2011-05-31 2011-05-31 Methods and apparatus for determining participants in coordinated multi-point transmission

Country Status (1)

Country Link
GB (1) GB2491367B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101895921A (en) * 2009-05-18 2010-11-24 普天信息技术研究院有限公司 Method for selecting coordinated multipoint cell
KR20100138263A (en) * 2009-06-24 2010-12-31 주식회사 팬택 Method for coordinated multi-point transmission/reception using adaptive cyclic delay diversity, system-side apparatus and receiving apparatus using the same, and method for determining coordinated multiple transmission points set using the same
US20110034171A1 (en) * 2009-08-05 2011-02-10 Samsung Electronics Co., Ltd. Communication system and method for single-point transmission and reception and coordinated multi-point transmission and reception
US20110070884A1 (en) * 2009-09-22 2011-03-24 Samsung Electronics Co., Ltd. Method for multi-point cooperation considering delay in wireless communication system
US20110085460A1 (en) * 2009-10-13 2011-04-14 Qualcomm Incorporated Reporting of timing information to support downlink data transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101895921A (en) * 2009-05-18 2010-11-24 普天信息技术研究院有限公司 Method for selecting coordinated multipoint cell
KR20100138263A (en) * 2009-06-24 2010-12-31 주식회사 팬택 Method for coordinated multi-point transmission/reception using adaptive cyclic delay diversity, system-side apparatus and receiving apparatus using the same, and method for determining coordinated multiple transmission points set using the same
US20110034171A1 (en) * 2009-08-05 2011-02-10 Samsung Electronics Co., Ltd. Communication system and method for single-point transmission and reception and coordinated multi-point transmission and reception
US20110070884A1 (en) * 2009-09-22 2011-03-24 Samsung Electronics Co., Ltd. Method for multi-point cooperation considering delay in wireless communication system
US20110085460A1 (en) * 2009-10-13 2011-04-14 Qualcomm Incorporated Reporting of timing information to support downlink data transmission

Also Published As

Publication number Publication date
GB2491367A (en) 2012-12-05
GB201109109D0 (en) 2011-07-13

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