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Method And Apparatus For Pre Coding Physical Downlink Control Channel Reference Signal And Blind Decoding

Abstract: The invention proposes a method of and apparatus for a pre coded physical downlink control channel reference signal and blind decoding in a design of the reference signal the demodulation reference signal is used for demodulating physical downlink control channel signaling wherein the physical downlink control channel signaling is embedded in. a physical downlink shared channel an the demodulation reference signal is included in a control channel element in a method tor a user equipment to perform blind decoding the user equipment obtains blind decoding indication information.from a base station the blind decoding indication information including an indication of a search space in which the user equipment performs the blind decoding wherein the search space includes a control channel element of a traditional physical downlink control channel and further includes a control channel element of a pre coded physical downlink control channel; and performs blind decoding for the number of searches indicated by the blind decoding indication information in the search space indicated by the blind decoding indication information according to the blind decoding indication information.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
21 February 2014
Publication Number
35/2015
Publication Type
INA
Invention Field
COMMUNICATION
Status
Email
patent@depenning.com
Parent Application

Applicants

ALCATEL LUCENT
3 avenue Octave Gréard F 75007 Paris

Inventors

1. ZHANG Xiaobo
388# Ningqiao RD Shanghai 201206
2. CHEN Fang Chen
4 Brookview Circle Randolph NJ 07869

Specification

1. A method, for a base station of a wireless communication network, of
assisting user equipment in blind decoding, wherein the method comprises the step
of:
- providing (S40] the user equipment with blind decoding indication information, the blind decoding indication information including an indication of a search space in which the user equipment performs the blind decoding, wherein the search space comprises a control channel element of a physical downlink control
channel outside a physical downlink shared channel and comprises a control channel element of a pre-coded physical downlink control channel embedded in the physical downlink shared channel,
characterized in that the blind decoding indication information comprises an indication of the numbers of searches respectively in the search space of the physical downlink control channel outside a physical downlink shared channel and the search space of the pre-coded physical downlink control channel embedded in the physical downlink shared channel.
2. The method as claimed in claim 1, wherein the blind decoding indication information comprises an indication of a starting location in the search space at which the user equipment performs the blind decoding.
3. The method as claimed in any one of claims 1 to 2, wherein the blind decoding indication information notifies the user equipment of a current search space, a starting location in the search space at which the user equipment performs the blind decoding and the number of searches in the search space, in an implicit indication manner, via predefined parameters or via association with system parameters.

4. The method as claimed in any one of claims 1 to 3, wherein the number of searches of the physical downlink control channel outside a physical downlink shared channel and the number of searches of the pre-coded physical downlink control channel are adjustable.
5. A method of blind decoding for a user equipment of a wireless communication network, wherein the method comprises the steps of: A. obtaining (S41] blind decoding indication information from a base station, the blind decoding indication information including an indication of a search space in which the user equipment performs the blind decoding, wherein the search space comprises a control channel element of a physical downlink control channel outside a physical downlink shared channel and comprises a control channel element of
a pre-coded physical downlink control channel embedded in the physical downlink shared channel; and B. performing (S42] the blind decoding in the search space indicated by the blind decoding indication information according to the blind decoding
indication information, characterized in that the blind decoding indication information comprises an indication of the numbers of searches respectively in the search space of the physical downlink control channel outside a physical downlink shared channel and the search space of the pre-coded physical downlink control channel embedded in the physical downlink shared channel.
6. The method as claimed in claim 5, wherein the blind decoding indication
information comprises an indication of the numbers of searches respectively in the
search space of the physical downlink
control channel outside a physical downlink shared channel and the search space of the pre-coded physical downlink
control channel, and the step B comprises: - performing the blind decoding respectively in the search space of the physical downlink control channel and the search space of the pre-coded physical downlink control channel according to the

numbers of searches respectively in the search space of the physical downlink control channel and the search space of the pre-coded physical downlink control channel indicated by the blind decoding indication information.
7. The method as claimed in claim 5, wherein the blind decoding indication
information comprises an indication of a starting location in the search space at
which the user equipment performs the blind decoding;
and wherein the step B comprises:
- performing the blind decoding at the starting location.
8. The method as claimed in any one of claims 5 to 7, wherein the blind
decoding indication information notifies the user equipment of a current search
space and/or a starting location in the search space at which the user equipment
performs the blind decoding and/or the number of searches in the search space, in
an implicit indication manner, via predefined parameters or
via association with system parameters; and
the step A comprises: obtaining the blind decoding indication
information from the predefined parameters or the system parameters.
9. An apparatus (30], in a base station of a wireless communication network,
for assisting a user equipment in blind decoding, wherein the apparatus comprises:
a providing device (300] configured to provide the user equipment with blind
decoding indication information, the blind decoding indication information
including an indication of a search space in which the user equipment performs the
blind decoding, wherein the search space comprises a control channel element of a
physical downlink control channel outside a physical downlink shared channel and
includes a control channel element of a pre-coded physical downlink control
channel embedded in the physical downlink shared channel, characterized in that
the blind decoding indication information comprises an indication of the numbers of
searches respectively in the search space of the physical downlink control channel

outside a physical downlink shared channel and the search space of the pre-coded physical downlink control channel embedded in the physical downlink shared channel.
10. An apparatus (40] for blind decoding in a user equipment of a wireless communication network, wherein the apparatus comprises: an obtaining device (400] configured to obtain blind decoding indication information from a base station, the blind decoding indication information including an indication of a search space in which the user equipment performs the blind decoding, wherein the search space comprises a control channel element of a physical downlink control channel outside a physical downlink shared channel and includes a control channel element of a pre-coded physical downlink control channel embedded in the physical downlink shared channel; and a blinding decoder (401] configured to perform the blind decoding in the search space indicated by the blind decoding indication information
as claimed in the blind decoding indication information, characterized in that the blind decoding indication information comprises an indication of the numbers of searches respectively in the search space of the physical downlink control channel outside a physical downlink shared channel and the search space of the pre-coded physical downlink control channel embedded in the physical downlink shared channel.

Documents

Application Documents

# Name Date
1 1394-CHENP-2014 POWER OF ATTORNEY 21-02-2014.pdf 2014-02-21
2 1394-CHENP-2014 PCT PUBLICATION 21-02-2014.pdf 2014-02-21
3 1394-CHENP-2014 FORM-5 21-02-2014.pdf 2014-02-21
4 1394-CHENP-2014 FORM-3 21-02-2014.pdf 2014-02-21
5 1394-CHENP-2014 FORM-2 FIRST PAGE 21-02-2014.pdf 2014-02-21
6 1394-CHENP-2014 FORM-18 21-02-2014.pdf 2014-02-21
7 1394-CHENP-2014 FORM-1 21-02-2014.pdf 2014-02-21
8 1394-CHENP-2014 DRAWINGS 21-02-2014.pdf 2014-02-21
9 1394-CHENP-2014 DESCRIPTION (COMPLETE) 21-02-2014.pdf 2014-02-21
10 1394-CHENP-2014 CORRESPONDENCE OTHERS 21-02-2014.pdf 2014-02-21
11 1394-CHENP-2014 CLAIMS SIGNATURE LAST PAGE 21-02-2014.pdf 2014-02-21
12 1394-CHENP-2014 CLAIMS 21-02-2014.pdf 2014-02-21
13 1394-CHENP-2014 DRAWINGS 21-02-2014.pdf 2014-02-21
14 1394-CHENP-2014.pdf 2014-02-28
15 1394-CHENP-2014 FORM-13 04-03-2014.pdf 2014-03-04
16 MARKED AMENDMENTS.pdf 2014-03-07
17 FORM-13.pdf 2014-03-07
18 CORRESPONDENCE.pdf 2014-03-07
19 CLEAN AMENDMENTS.pdf 2014-03-07
20 1394-CHENP-2014 FORM-1 12-08-2014.pdf 2014-08-12
21 1394-CHENP-2014 FORM-3. 14-08-2014.pdf 2014-08-14
22 1394-CHENP-2014 FORM-3 14-08-2014.pdf 2014-08-14
23 1394-CHENP-2014 CORRESPONDENCE OTHERS. 14-08-2014.pdf 2014-08-14
24 1394-CHENP-2014 CORRESPONDENCE OTHERS 14-08-2014.pdf 2014-08-14
25 1394-CHENP-2014 FORM-3 21-10-2014.pdf 2014-10-21
26 1394-CHENP-2014 CORRESPONDENCE OTHERS 21-10-2014.pdf 2014-10-21
27 1394-CHENP-2014 FORM-3 03-03-2015.pdf 2015-03-03
28 1394-CHENP-2014 CORRESPONDENCE OTHERS 03-03-2015.pdf 2015-03-03
29 1394-CHENP-2014 FORM-3 10-06-2015.pdf 2015-06-10
30 1394-CHENP-2014 CORRESPONDENCE OTHERS 10-06-2015.pdf 2015-06-10
31 1394-CHENP-2014-Form 3-161015.pdf 2016-03-22
32 1394-CHENP-2014-Correspondence-161015.pdf 2016-03-22
33 Form 3 [02-06-2016(online)].pdf 2016-06-02
34 1394-CHENP-2014-Form 3-290216.pdf 2016-07-01
35 1394-CHENP-2014-Correspondence-F3-290216.pdf 2016-07-01
36 Form 3 [23-11-2016(online)].pdf 2016-11-23
37 Form 3 [04-05-2017(online)].pdf 2017-05-04
38 1394-CHENP-2014-FORM 3 [11-08-2017(online)].pdf 2017-08-11
39 1394-CHENP-2014-FORM 3 [27-03-2018(online)].pdf 2018-03-27
40 1394-CHENP-2014-FER.pdf 2019-07-31
41 1394-CHENP-2014-OTHERS [20-01-2020(online)].pdf 2020-01-20
42 1394-CHENP-2014-FORM-26 [20-01-2020(online)].pdf 2020-01-20
43 1394-CHENP-2014-FORM 3 [20-01-2020(online)].pdf 2020-01-20
44 1394-CHENP-2014-FER_SER_REPLY [20-01-2020(online)].pdf 2020-01-20
45 1394-CHENP-2014-DRAWING [20-01-2020(online)].pdf 2020-01-20
46 1394-CHENP-2014-COMPLETE SPECIFICATION [20-01-2020(online)].pdf 2020-01-20
47 1394-CHENP-2014-CLAIMS [20-01-2020(online)].pdf 2020-01-20
48 1394-CHENP-2014-ABSTRACT [20-01-2020(online)].pdf 2020-01-20
49 1394-CHENP-2014-Form26_Power of Attorney_22-01-2020.pdf 2020-01-22
50 1394-CHENP-2014-Correspondence_22-01-2020.pdf 2020-01-22
51 1394-CHENP-2014-US(14)-HearingNotice-(HearingDate-09-01-2023).pdf 2022-12-21
52 1394-CHENP-2014-Correspondence to notify the Controller [06-01-2023(online)].pdf 2023-01-06

Search Strategy

1 searchstrategy_31-07-2019.pdf