SE8703407D0 - PROCEDURE IN A COHERENT MOBILE RADIO RECEIVER FOR INITIATING A RECEIVER INCORPORATING IN THE RECEIVER - Google Patents

PROCEDURE IN A COHERENT MOBILE RADIO RECEIVER FOR INITIATING A RECEIVER INCORPORATING IN THE RECEIVER

Info

Publication number
SE8703407D0
SE8703407D0 SE8703407A SE8703407A SE8703407D0 SE 8703407 D0 SE8703407 D0 SE 8703407D0 SE 8703407 A SE8703407 A SE 8703407A SE 8703407 A SE8703407 A SE 8703407A SE 8703407 D0 SE8703407 D0 SE 8703407D0
Authority
SE
Sweden
Prior art keywords
receiver
sequence
data
time
interval
Prior art date
Application number
SE8703407A
Other languages
Swedish (sv)
Other versions
SE8703407L (en
SE458653B (en
Inventor
B O P Gudmundson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE8703407A priority Critical patent/SE458653B/en
Publication of SE8703407D0 publication Critical patent/SE8703407D0/en
Publication of SE8703407L publication Critical patent/SE8703407L/en
Publication of SE458653B publication Critical patent/SE458653B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

In the mobile radio system, the transmission of signals over the different channels (1,2,3) occurs in the form of time slots with data bits. Each time slot contains a first time in interval (to-t1) for a practice sequence (S) contg. synchronisation data, and a second such interval (y1-t2) for a data sequence contg. control and data information. The two sequences are filtered in a smoother for compensating the imperfection of the channel in the spread. The filter coefficients of the smoother are adjusted in accordance with a specific algorithm, and dependent upon the fault arising on comparison of the received practice sequence with a known reference sequence in the receiver. The transmitted practice sequence detected in the receiver, together with the received data sequence (D), is stored for a specific time interval (to-t2) corresp. to the first and second time intervals. During the following time interval (t2-t6) the practice sequence is fed outwards during two consecutive time intervals (t2-t5) before the data sequence to the smoother filter. This enables comparison to be effected at least twice withthe reference sequence.
SE8703407A 1987-09-02 1987-09-02 Process in coherent mobile radio receiver SE458653B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8703407A SE458653B (en) 1987-09-02 1987-09-02 Process in coherent mobile radio receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8703407A SE458653B (en) 1987-09-02 1987-09-02 Process in coherent mobile radio receiver

Publications (3)

Publication Number Publication Date
SE8703407D0 true SE8703407D0 (en) 1987-09-02
SE8703407L SE8703407L (en) 1989-03-03
SE458653B SE458653B (en) 1989-04-17

Family

ID=20369460

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8703407A SE458653B (en) 1987-09-02 1987-09-02 Process in coherent mobile radio receiver

Country Status (1)

Country Link
SE (1) SE458653B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE464437B (en) * 1989-08-25 1991-04-22 Ericsson Telefon Ab L M METHOD OF A MOGIL RADIO RECEIVER TO REDUCE THE POWER RECEIVER'S REQUIREMENT
FI92357C (en) * 1992-10-12 1994-10-25 Nokia Mobile Phones Ltd Channel equalizer for a bidirectional telecommunication system

Also Published As

Publication number Publication date
SE8703407L (en) 1989-03-03
SE458653B (en) 1989-04-17

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