Us 20110249602

8/16/2019 Us 20110249602

1/13

( 1 9 )

United

S t a t e s

Wennstrom e t a l .

US

20110249602A1

( 1 2 )

Patent

Application

Publication

( 1 0 ) P u b .

N o . :

US 2 0 1 1 / 0 2 4 9 6 0 2 A 1

( 4 3 ) P u b . D a t e : O c t . 1 3 ,

2011

( 5 4 )

( 7 5 )

( 7 3 )

( 2 1 )

( 2 2 )

( 6 3 )

METHOD

FORSIGNALLING

N

A

WIRELESS

COMMUNICATION

SYSTEM

I n v e n t o r s :

A s s i g n e e :

A p p l .

N o . :

F i l e d :

M a t t i a s

W e n n s t r o m ,

U p p s a l a

( S E ) ;

B r a n i s l a v

P o p o v i c , S t o c k h o l m

( S E ) ; J i a n g h u a L i u ,

S u n d b y b e r g

( S E )

HuaWei

e c h n o l o g i e s C o . ,

L t d ,

S h e n Z h e n C N )

1 3 / 1 6 5 , 5 4 4

J u n . 2 1 , 2 0 1 1

R e l a t e d US. p p l i c a t i o n

Data

C o n t i n u a t i o n

o f

a p p l i c a t i o n N o .

0 7 2 5 1 6 , ? l e d

on

J u n .

2 9 , 2 0 0 9 .

PCT/CN2009/

( 3 0 ) F o r e i g n

A p p l i c a t i o n

P r i o r i t y D a t a

Dec.

22, 2008 (CN) . . . . . . . . . . . . . . . . . PCT/CN2008/073631

P u b l i c a t i o n

C l a s s i ? c a t i o n

5 1 )

I n t .

C l .

H04W / 0 0 2 0 0 9 . 0 1 )

(52)

us.

1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . 370/310

( 5 7 ) ABSTRACT

The

r e s e n t i n v e n t i o n

r e l a t e s t o a

method i n

a

w i r e l e s s

com

m u n i c a t i o n s y s t em f o r s i g n a l l i n g number o f a n t e n n a p o r t s

which a t r a n s m i t node

c o m p r i s e s .

According t o t h e method a

c o m m u n i c a t i o n

s i g n a l i s t r a n s m i t te d c a r r y i n g

i n f o r m a t i o n on

number

of t l e a s t one a n t e n n a p o r t of s a i d

t r a n s m i t n o d e ,

wherein

t h e information on s a i d number of a t l e a s t

one

a n t e n n a

p o r t

i s

p a r t i t i o n e d and p r o v i d e d d i s t r i b u t e d o v e r a t

l e a s t t w o p r e d e ? n e d p a r t s

o f

s a i d c o m m u n i c a t i o n s i g n a l . The

i n v e n t i o n a l s o r e l a t e s t o

a

t r a n s m i t node and

a r e c e i v e n o d e ,

and methods

t h e r e o f .

Resources de-mapping f o r 4

PBCH rom

t h e

r e c e i v e d

s i g n a l

F

CRC?

s w i t c h

. v b . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . “ n

A ‘ l l

SFBC

SFBC-t-FSTD

d e c o d i n g d e c o d i n g

1 t t

D e m o d u l a t i o n D e m o d u l a t i o n D e m o d u l a t i o n

Y V 1

C h a n n e l C h a n n e l C h a n n e l

d e c o d i n g


R e mo v i n g R e m o v i n g R e m o v i n g

CRCmask

CRC

m a s k

CRC

m a s k

u s l n g u s i n g u s i n g

x , ‘ , i = 0 , 1 , - - - , 1 5

x 3 , i = 0 , 1 , . . . , 1 5

x f ‘ i

: 0 , 1 , . . . , 1 5

CRC CRC CRC

d e t e c t i o n d e t e c t i o n d e t e c t i o n

C o r r e c t

V

Read b r o a d c a s t

i n f o r m a t i o n i n

PBCH

n d

know

t h e number o f

a n t e n n a p o r t s i s

1

Read r o a d c a s t


PBCH n d

know

t h e number

o f


2

R e a d r ? ‘ d ° a . ‘ s t D e t e c t t h e PBCH

informatlon

1 n

.

th

t

PBCH nd

know m

6.1m‘

transmissiontime _ _

the

number o f i n t KTTI

a n t e n n a

p o r t s

i s

4 e r v a

)

8/16/2019 Us 20110249602

2/13

P a t e n t



O c t . 1 3 ,

2 0 1 1

S h e e t

1

of3

Resources

de-mapping

f o r

‘

PBCH rom t h e r e c e i v e d s i g n a l ‘

US

011/0249602

A 1

C o r r e c t

CRC?

s w i t c h

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

n

A

l V

SFBC

SFBC+FSTD


V

V

V

D e m o d u l a t i o n D e m o d u l a t i o n D e m o d u l a t i o n

V V V

C h a n n e l C h a n n e l C h a n n e l

d e c o d i n g d e c o d i n g d e c o d i n g

R e m o v i n g R e m o v i n g R ? m o v i n g

CRC ask CRC ask CRC ask

u s i n g

u s i n g

u s i n g

x } , i : , 1 , . . . , 1 5 x , . 2 , i = , 1 , . . . , 1 5 x , f ‘ , i =

, 1 , . . . , 1 5

V V

V

CRC CRC CRC


C o r r e c t

CRC?

V



PBCH

n d

know

t h e

number

o f

a n t e n n a p o r t s

i s

1



PBCH

n d

know

t h e

number

o f


2

Read

b r o a d c a s t

i n f o r m a t i o n

i n

PBCH nd know

t h e

number

o f

a n t e n n a p o r t s i s 4

D e t e c t t h e PBCH

i n t h e n e x t

t r a n s m i s s i o n

t i m e

i n t e r v a l ( T T I )

F i g u r e 1

8/16/2019 Us 20110249602

3/13

P a t e n t



O c t . 1 3 , 2 0 1 1 S h e e t 2 o f 3

R e s o u r c e s

t i e - m a p p i n g

f o r

US

011/0249602

A 1

PBCH r o m

t h e r e c e i v e d s i g n a l

s w i t c h

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . u

- - - - - - - - - - . _ O

M A

SFBC SFBC+FSTD


r i

i

Demodulation Demodulation Demodulation

V V V

Channel Channel Channel

d e c o d i n g d e c o d i n g d e c o d i n g

V V

R e m o v i n g

R e m o v i n g R e m o v i n g

CRC

ask

CRC

ask

CRC

ask

u s i n g u s i n g u s i n g

x i , i = 0 , 1 , . . . , 1 5

x f , i

= , 1 , . . . , 1 5 x , f ‘ , i = 0 , 1 , . . . , 1 5

V V V

CRC

CRC

CRC


Read b r o a d c a s t Read b r o a d c a s t

Read

b r o a d c a s t

i n f o r m a t i o n i n i n f o r m a t i o n i n i n f o r m a t i o n i n

PBCH nd know PBCH nd PBCH nd know

t h e t y p e

I I

know

t h e t y p e

I I

t y p e

I I


i n f o r m a t i o n i n f o r m a t i o n

D e t e c t

t h e PBCH

i n t h e n e x t

transmission time

_

i n t e r v a l ( T T I )

F i g u r e 2

8/16/2019 Us 20110249602

4/13

P a t e n t A p p l i c a t i o n P u b l i c a t i o n

O c t . 1 3 , 2 0 1 1 S h e e t 3 0 f 3 US

2 0 1 1 / 0 2 4 9 6 0 2

A 1

wD G E

M

P EM E .q w ?

mD G E

w m w

VJ1 . “

»

m m @

m

m wo m

8/16/2019 Us 20110249602

5/13

US 011/0249602

A 1

METHODFOR SIGNALLING N AWIRELESS

COMMUNICATION

SYSTEM

CROSS-REFERENCE TO RELATED

APPLICATIONS

[ 0 0 0 1 ]

T h i s

a p p l i c a t i o n i s a c o n t i n u a t i o n

o f

I n t e r n a t i o n a l

A p p l i c a t i o n N o .

PCT/CN2009/072516, ? l e d

on J u n . 2 9 ,

2 0 0 9 , W h i c h

c l a i m s

p r i o r i t y t o I n t e r n a t i o n a l A p p l i c a t i o n N o .

PCT/CN2008/073631, ? l e d on e c .

2 2 ,

2 0 0 8 , b o t h o f

Which

a r e

h e r e b y

i n c o r p o r a t e d b y r e f e r e n c e i n

t h e i r

e n t i r e t i e s .

TECHNICAL

IELD

[ 0 0 0 2 ]

The r e s e n t i n v e n t i o n

r e l a t e s t o

a method n a W i r e

l e s s

c o m m u n i c a t i o n s y s t e m f o r s i g n a l l i n g

number

f

a n t e n n a

p o r t s ,

o r more

p a r t i c u l a r l y t o

a

method

a c c o r d i n g

t o

t h e p r e

amble of

l a i m

1 .

F u r t h e r m o r e ,

t h e

i n v e n t i o n a l s o r e l a t e s t o

a

t r a n s m i t node and a r e c e i v e n o d e ,

and

methods t h e r e o f .

BACKGROUND

OF

THE

INVENTION

[ 0 0 0 3 ] I n

a W i r e l e s s c e l l u l a r communication

s y s t e m , one r

m u l t i p l e D o W n l i n k D L ) Common e f e r e n c e S i g n a l s

C R S s )

may be used f o r

c h a n n e l

measurements,

o r

f o r c o h e r e n t

demodulation

and

c h a n n e l measurements, f o r a mobile t e r

minal

i n

a g i v e n c e l l . obile t e r m i n a l i s a l s o

denoted

a s

a

User Equipment

(UE)

i n some W i r e l e s s communication

s y s

t e m s .

Each

CRS e?nes a s o - c a l l e d antenna p o r t i n a g i v e n

c e l l and a common

Way

t o implement a n t e n n a p o r t s i s t o

a s s o c i a t e

an antenna p o r t

With

a

p h y s i c a l

t r a n s m i t a n t e n n a .

[ 0 0 0 4 ] The

R e f e r e n c e

S i g n a l s R S s ) o f d i f f e r e n t a n t e n n a

p o r t s

s h o u l d

b e

o r t h o g o n a l

t o

e a c h

o t h e r t o

a l l o W i n t e r f e r

e n c e - f r e e

i d e n t i ? c a t i o n

o f c o r r e sp o n d i n g p r o p a g a t i o n

c h a n

n e l c o e ? i c i e n t s ,

i . e .

t h e p r o p a g a t i o n ch a n n e l f r o m e a c h t r a n s

mit

a n t e n n a

t o

each

r e c e i v e a n t e n n a . The RSs a r e u s u a l l y

c e l l - s p e c i ? c

to

minimize i n t e r f e r e n c e betWeen

RSs i n

d i f f e r

e n t

c e l l s . Without o s s of e n e r a l i t y ,

a n t e n n a p o r t s a r e de?ned

by CRS o r c e l l - s p e c i ? c CRS t h r o u g h o u t t h i s d o c u m e n t . C e l l

s p e c i ? c

CRS

i m p l i e s t h a t t h e y a r e

u s e d

by

m u l t i p l e UEs n

a

c e l l

to measure

t h e c h a n n e l from each a n t e n n a

p o r t .

Antenna

p o r t s

may

a l s o be u s e r s p e c i ? c ,

Which

means t h a t t h e y a r e

u s e d f o r measurements a n d / o r d e m o d u l a t i o n by

a

s p e c i ? c

s i n g l e U E .

[ 0 0 0 5 ] The CRSs a r e t r a n s m i t t e d

on

e x c l u s i v e l y r e s e r v e d

r e s o u r c e s

of

a c e l l ,

such

a s

time

and f r e q u e n c y Resource

Elements

R E ) ,

c o d e s , e t c . Data i s n o t t r a n s m i t t e d on t h e s e

r e s e r v e d

r e s o u r c e s

t o

a v o i d

i n t e r f e r e n c e With R S s , Which

Would hamper

t h e

e s t i m a t i o n o f

t h e

c h a n n el p r o p a g a t i o n

c o e f ? c i e n t s

from t h a t a n t e n n a

p o r t .

[ 0 0 0 6 ]

I n o r d e r t o be

a b l e

to

u s e DL

RSs p r o p e r l y and t o

perform

s t a n d a r d

communication W i t h

a

b a s e s t a t i o n , s u c h a s

a eNB, t h e number o f a n t e n n a p o r t s used f o r DL h a n n e l

measurements a n d / o r DL t r a n s m i s s i o n

i s v e r y i m p o r t a n t

information t h a t a UE needs t o knoW. A f t e r a UE b t a i n

i n f o r m a t i o n a b o u t t h e number

f

a n t e n n a p o r t s used n a c e l l ,

t h e

UE

i l l knoW Which t r a n s m i s s i o n mode s u s e d f o r e a c h

p h y s i c a l c h a n n e l , and Which r e s o u r c e s t h a t a r e used f o r d a t a


and

Which t h a t

a r e

used

f o r

DL CRS. T h i s i s

i m p o r t a n t i n f o r m a t i o n

o

a v o i d h a t

r e c e i v e d

d a t a i s p u n c t u r e d

by CRSs, s i n c e i f a UE s n o t

aWare

of l l CRSs i n

r a d i o

r e s o u r c e s , i t W i l l assume e c e p t i o n of a t a on t h o s e r e s o u r c e s

Where

t h e r e

a c t u a l l y

i s

a

CRS

r a n s m i s s i o n , and

t h i s

W i l l

d e g r a d e t h e p e r f o r m a n c e o f d a t a r e c e p t i o n d u e t o

t h e i n t e r

f e r e n c e

from

t h e CRSs.

O c t . 1 3 , 2 0 1 1

[ 0 0 0 7 ]

F u r t h e r m o r e ,

k n o W i n g

t h e number o f

CRSs s a l s o

i m p o r t a n t t o m e a s u r e m u l t i p l e c h a n n e l s u s i n g CRSs

and

o

d e t e c t p h y s i c a l

c h a n n e l s ,

e t c . I n

t h e Long Term

E v o l u t i o n

L T E ) R e l e a s e - 8 ( R e l - 8 )

s t a n d a r d ,

t he i n f o r m a t i o n a b o u t

number

o f a n t e n n a

p o r t s

i s

embedded

n

t h e

s i g n a l

t r a n s m i t

t e d on a

P h y s i c a l B r o a d c a s t

Channel (PBCH). f t e r

s u c c e s s

f u l c e l l

s e a r c h p r o c e d u r e ,

t h e

UE i l l o b t a i n t i m e a n d f r e

quency

s y n c h r o n i z a t i o n

W i t h a c e l l , a s

W e l l

a s t h e c e l l I d e n t i t y

I D ) o f h e c e l l ; and h e n t h e UE

e g i n s

to

d e t e c t

t h e PBCH o

o b t a i n

c e l l - s p e c i ? c

i n f o r m a t i o n and

t h e

number o f a n t e n n a

p o r t s .

[ 0 0 0 8 ]

I n

t h e LTE R e l - 8

s t a n d a r d , t h r e e

t y p e s o f c e l l - s p e

c i ? c CRSs a r e s u p p o r t e d d e ? n i n g :

o n e ,

tWo and f o u r a n t e n n a

p o r t s (3GPP

TS

6 . 2 1 1

v 8 . 4 . 0 ) .

The number f a n t e n n a p o r t s

i n a

c e l l d e c i d e s

t h e

maximum number o f M u l t i p l e I n p u t

M u l t i p l e O u t p u t (MIMO) r a n s m i s s i o n l a y e r s s u p p o r t e d

b y a

eNB n s a i d c e l l . F o r i n s t a n c e , i f

t h e r e

a r e f o u r a n t e n n a

p o r t s

i n a

c e l l ,

up

t o

f o u r MIMO a y e r s t r a n s m i s s i o n can

be

s u p

p o r t e d by t h e

eNB.

The i n f o r m a t i o n

a b o u t

t h e number o f

a n t e n n a

p o r t s

i s

embedded

n t o

t h e

s i g n a l

t r a n s m i t t e d

on

t h e

PBCH

y

u s i n g d i f f e r e n t

C y c l i c

R e d u n d a n c y

C h e c k C R C )

masks

o

i n d i c a t e

t h e number

of

antenna o r t s .

A s

UE

a s

no

p r i o r

i n f o r m a t i o n a b o u t t h e number f s e d a n t e n n a

p o r t s

i n a

c e l l , i . e .

t h e

u s e d CRC mask o f t h e

t r a n s p o r t

b l o c k o f t h e

PBCH,

t h e

UE

a s t o make

b l i n d

d e t e c t i o n o f t h a t i n f o r m a

t i o n ,

Which

means h a t t h a s t o check l l

p o s s i b l e CRC asks

and s e l e c t

t h e

mask t h a t i s

t h e most

r o b a b l e

c o n d i t i o n e d on

t h e

r e c e i v e d PBCH i g n a l .

[ 0 0 0 9 ] T h e o p e r a t i o n o f

e m b e d d i n g


a b o u t

t h e

number

of


i n t o

PBCH t t r a n s m i t t e r

and

t h e

c o r r e s p o n d i n g

b l i n d

d e t e c t i o n

of

PBCH

t r e c e i v e r f o r a LTE

R e l - 8 s y s t e m W i l l b e d e s c r i b e d

i n

t h e

f o l l o W i n g .

[ 0 0 1 0 ]

F i r s t l y ,

a t t h e t r a n s m i t t e r , t h e e n t i r e

t r a n s p o r t

b l o c k

b i t s of PBCH

0 , a 1 , . . .

aA_l i s used t o

calculate

the

CRC

p a r i t y

b i t s p 0 , p 1 ,

. . .

, p L _ 1 ,

WhereA

s

the s i Z e

ofthe

transport

b l o c k

( i . e .

t h e

number

f i n f o r m a t i o n b i t s ) and L s

t h e

num

b e r o f CRC a r i t y b i t s Which

s

s e t to

1 6

i n t h e LTE R e l - 8

s t a n d a r d . S ec o n d l y , a c c o r d i n g t o t h e

a n t e n n a

p o r t

c o n ? g u r a

t i o n

o f

t h e

c e l l ,

t h e CRC a r i t y

b i t s a r e s c r a m b l e d

by a

sequence having l e n g t h 1 6 ,

X 0 ” , X 1 ” ,

. . . , x l s ”


t o

a number

of antenna p o r t s n ,

Where

n:1, 2 o r 4 . A f t e r

scrambling,

the maskedCRC arity i t s W i l l be

0 ,

c l , . . . c l s ,

Where

ci:(pi+xi”)mod

, i I O , 1 , . . . 1 5 .

The mapping

e l a t i o n

betWeen t h e t h r e e s c r a m b l i n g s e q u e n c e s and t h e

number

o f

a n t e n n a

p o r t s a c c o r d i n g o

t h e

LTE s t a n d a r d

s

shoWn n T a b l e

1 b e l o W .

TABLE

CRC

ask sequences f o r PBCH n LTE R e l - 8

Number f a n t e n n a p o r t s CRC ask s e q u e n c e s

1

< 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 >

2

< 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 >

4

< 0 , 1 , 0 , 1 , 0 , 1 , 0 , 1 , 0 , 1 , 0 , 1 , 0 , 1 , 0 , 1 >

[ 0 0 1 1 ] T h e n ,

t h e

masked CRC a r i t y b i t s a r e a t t a c h e d

to

t h e

t a i l o f t h e t r a n s p o r t

b l o c k

b i t s o f t h e PBCH

o

o b t a i n t h e

information

its

to

be ransmitted as

a0,

a1, . . . aA_l, c0, cl, .

. . , c 5.

[ 0 0 1 2 ]

F i n a l l y , a s e t

o f o p e r a t i o n s i n c l u d i n g c h a n n e l c o d

i n g

r a t e m a t c h i n g , m o d u l a t i o n and

r e s o u r c e s mapping

a r e

performed

on the information

its

a0, a1, . . .

, aA _l,

c0, cl, . . .

C15

8/16/2019 Us 20110249602

6/13

US 011/0249602

A 1

[ 0 0 1 3 ] I n t h e c a s e of one

a n t e n n a

p o r t ,

t h e modulation

symbols

a r e

d i r e c t l y

mapped t o t h e r e s e r v e d r e s o u r c e s on

antenna

p o r t 0 ; i n t h e

c a s e of

tWo

antenna

p o r t s , a t r a n s m i t

d i v e r s i t y s c h e m e

knoWn

s

S p a c e F r e q u e n c y B l o c k

C o d i n g

(SFBC)

i s

p e r f o r m e d on

t h e

m o d u l a t i o n

s y m b o l s ,

a n d

t h e

o u t p u t of h e SFBC s mapped t o t h e r e s e r v e d r e s o u r c e s on

a n t e n n a

p o r t 0 and

, r e s p e c t i v e l y ;

i n t h e c a s e

o f

f o u r

a n t e n n a

p o r t s , SFBC c o m b i n e d W i t h F r e q u e n c y

S w i t c h i n g T r a n s m i t

D i v e r s i t y

F S T D ) i s

p e r f o r m e d

o n t he

m o d u l a t i o n

s y m b o l s ,

a n d

t h e

o u t p u t o f

SFBC+FSTD

i s mapped t o

t h e

r e s e r v e d

r e s o u r c e s on

a n t e n n a

p o r t

0 ,

1 ,

2 and ,

r e s p e c t i v e l y .

I t

s h o u l d

b e o b s e r v e d from t h e a b o v e d e s c r i p t i o n

t h a t

t h e


a b o u t t h e

number

o f a n t e n n a

p o r t s

i s i m p l i c i t l y

embedded

i n t o t h e PBCH.

[ 0 0 1 4 ] A t t h e r e c e i v e r , t h e c o r r e s p o n d i n g

i n v e r s e

o p e r a

t i o n s to ?nd t h e number

o f a n t e n n a p o r t s

a r e done by a

UE

Who s

a c c e s s i n g

t o

t h e

c e l l . As

t h e

UE

noWs

t h a t t h e r e a r e

t h r e e h y p o t h e s i s e s p o s s i b l e r e g a r d i n g t h e number f

a n t e n n a

p o r t s

( i . e . o n e ,

tWo

o r f o u r

a n t e n n a

p o r t s )

t h e

UE

e r f o r m s

b l i n d

d e t e c t i o n

o f h e

PBCH,

Which

s

i l l u s t r a t e d i n

F I G .

1 . I n

t h e p r o c e d u r e

o f

b l i n d d e t e c t i o n , SFBC o r SFBC+FSTD

d e c o d i n g , d e m o d u l a t i o n , c h a n n el

d e c o d i n g a n d CRC

d e t e c

t i o n a r e a l l s t a n d a r d o p e r a t i o n s , s o t h e

d e t a i l s

of

them i l l

n o t

b e f u r t h e r

d e s c r i b e d ,

b u t t h e

o p e r a t i o n

o f

r e m o v i n g

t h e CRC

mask i l l b e

e x p l a i n e d

i n t h e f o l l o W i n g

d i s c l o s u r e .

[ 0 0 1 5 ] A s s u m i n g t h a t

t h e

o u t p u t o f c h a n n e l d e c o d i n g s

a 0 ,

a 1 ,

. . . 2 1 M ,

6 0 ,

e 1 , . . . 6 1 5 ,

Where the

l a s t 1 6 bits of

information

6 0 , e 1 ,

. . .

6 1 5

a r e t h e CRC a r i t y

b i t s

scrambled

W i t h

a

CRC mask c o r r e s p o n d i n g t o


a b o u t

t h e

number of

a n t e n n a

p o r t s ,

a s

mentioned a b o v e . When l i n d

d e t e c t i o n

o f

t h e

PBCH s p e r f o r m e d ,

t h e CRC a r i t y b i t s

a r e

d e - s c r a m b l e d W i t h a n assumed CRC ask i . e . r e m o v i n g

t h e

CRC a s k ) i n t h e f o l l o W i n g W a y :

[0016] Where

IO,

l ,

. . .

15;

[ 0 0 1 7 ]

n

s t h e number o f a n t en n a p o r t s ,

[ 0 0 1 8 ]

X , ”

i s t h e

de?ned

CRC ask c o r r e s p o n d i n g t o n


[ 0 0 1 9 ]

I f t h e assumed

CRC ask s

t h e same a s t h e a c t u a l

CRC

ask s e d

t

t r a n s m i t t e r , t h e a b o v e

o p e r a t i o n

W i l l com

p l e t e l y

remove t h e CRC

mask embedded

i n t o

CRC a r i t y

b i t s ,

a n d

t h e p r o b a b i l i t y o f

c o r r e c t

d e t e c t i o n i s

i n c r e a s e d .

[ 0 0 2 0 ]

As

m e n t i o n e d , i n t h e LTE

R e l - 8

s y s t e m up t o f o u r

a n t e n n a p o r t s can be

s u p p o r t e d

on

t h e DL. The

LTE-Ad

v a n ce d L T E - A ) s y s t e m o f

R e l e a s e

1 0

R e l - l 0 )

a n d

b e y o n d

a r e

supposed o be an

x t e n s i o n

of LTE ystem n Which up t o

e i g h t

l a y e r s

t r a n s m i s s i o n p o s s i b l y

e v e n

more

l a y e r s f o r

r e l e a s e s

b e y o n d

R e l -

0 ) W i l l

b e

s u p p o r t e d

t o

f u r t h e r i n c r e a s e

s y s t e m p e r f o r m a n c e ,

s u c h as p e a k

d a t a

r a t e ,

c e l l a v e r a g e

s p e c t r u m e ? i c i e n c y , e t c

(3GPP

TR 6 . 8 1 4

v 1 . 0 . 0 ) .

I n o r d e r

o

s u p p o r t u p

t o

e i g h t l a y e r s t r a n s m i s s i o n more a n t e n n a

p o r t s

t h a n

t h e

a n t e n n a

p o r t s

s u p p o r t e d i n

LTE R e l - 8 must b e

de?ned n

a

LTE-A

communication s y s t e m .

[ 0 0 2 1 ] I n a d d i t i o n , t o f u l ? l LTE-A a c k W a r d s c o m p a t i b i l

i t y

r e q u i r e m e n t , i t s h o u l d t i l l b e p o s s i b l e f o r a LTE-A e l l to

a l s o

s e r v e

LTE

UEs.

I n

o r d e r

t o

e n a b l e

LTE UEs o

o p e r a t e

i n

a

LTE-A y s t e m ,

t h e


de?ned

n LTE

s h o u l d

a l s o

be s u p p o r t e d

i n a LTE-A s y s t e m ,

i . e .

n

number

of LTE CRSs

s h o u l d a l s o e x i s t i n

a

LTE-A s y s t e m ,

Where

n : l ,

2

o r

4 ; and

LTE UEs

use

LTE CRSs o r

c o h e r e n t demodulationand

chan

n e l

measurement a s i n t h e

LTE

s y s t e m , While

LTE-A

UEs

O c t . 1 3 , 2 0 1 1

may l s o

use

t h e s e LTE CRS

o r

demodulation

o f

t h e

c o n t r o l

c h a n n e l s ,

s u c h

a s PBCH and P h y s i c a l DoWnlink

C o n t r o l

C h a n n e l P D C C H ) .

[ 0 0 2 2 ]

H e n c e ,

i n a

LTE-A s y s t e m

t h e r e W i l l be a number

f

LTE

a n t e n n a

p o r t s

u s e d

f o r

t r a n s m i t t i n g

LTE

d a t a / c o n t r o l

a n d / o r LTE-A

o n t r o l

i n f o r m a t i o n ; i n a d d i t i o n , i t i s

a l s o

p o s

s i b l e t o de?ne

a

number f a d d i t i o n a l a n t e n n a

p o r t s

used

n l y

f o r s u p p o r t i n g LTE-A

a t a t r a n s m i s s i o n .

F o r l l a n t e n n a

p o r t s

i n

a

LTE-A s y s t e m ,

t h e neW de?ned

a d d i t i o n a l

antenna

p o r t s

a r e denoted a s LTE-A

antenna

p o r t s , and t h e number

of

LTE-A antenna p o r t s

could be Z e r o .

T h e r e f o r e ,

a communi

c a t i o n system Which can e r v e both

LTE UEs nd LTE-A UEs

i s n e e d e d .

A l s o , s i n c e

t h e number f LTE

and LTE-A

n t e n n a

p o r t s may be d i f f e r e n t i n

a

LTE-A e l l ,

a q u e s t i o n

i s hoW t o

s i g n a l t h e

e x i s t e n c e

o f

LTE-A n t e n n a p o r t s

to

LTE-A

UEs

n

Way

h a t

i s

t r a n s p a r e n t

t o

t h e

r e c e p t i o n o f

t h e

number f LTE

a n t e n n a p o r t s .

[ 0 0 2 3 ] I t

i s

t h u s c l e a r t h a t

a

LTE-A eNB

ay

need

o

e n a b l e

a d d i t i o n a l CRSs a n t e n n a

p o r t s ) f o r

m e a s u r e m e n t s a n d / o r

d e m o d u l a t i o n compared o t h e a n t e n n a

p o r t s

de?ned by

LTE

CRSs i . e .

n : l ,

2 o r 4 ) . Up o e i g h t ad d i t i o n a l a n t e n n a p o r t s

(CRSs) may

b e

needed f o r

LTE-A

UEs

i n R e l - l 0 . T h e s e

a d d i t i o n a l CRSs a r e

denoted

Channel S t a t e

Information-RSs

C S I - R S s ) .

I t

i s t h u s

a n o t h e r q u e s t i o n hoW o s i g n a l

t h e num

b e r of

LTE-A

antenna

p o r t s o r

t h e number of CSI-RS

t o

LTE-A

UEs i n Way t h a t

i s t r a n s p a r e n t t o LTE UEs.

[ 0 0 2 4 ] T h e r e f o r e , a

s i g n a l l i n g

method Which s

b a c k W a r d s

c o m p a t i b l e to e n a b l e

LTE UEs

t o o b t a i n t h e number

o f LTE

a n t e n n a

p o r t s , W h i l e

t h e s i g n a l l i n g o f LTE-A a n t e n n a p o r t s

s h o u l d be t r a n s p a r e n t

t o LTE UEs s needed i n

t h e

a r t .

SUMMARY OFTHE INVENTION

[ 0 0 2 5 ] A n

o b j e c t o f t h e

p r e s e n t i n v e n t i o n i s t o p r o v i d e

a

method

o r

s i g n a l l i n g

i n f o r m a t i o n a b o u t a number

f a n t e n n a

p o r t s a t r a n s m i t

n o d e

c o m p r i s e s .

A n o t h e r

o b j e c t

o f

t h e

i n v e n

t i o n

i s

t o

p r o v i d e

a

method Which

s o l v e s t h e

problem o f

b a c k W a r d s c o m p a t i b i l i t y

d e s c r i b e d a b o v e . Y e t a n o t h e r o b j e c t

o f t h e i n v e n t i o n i s

t o

p r o v i d e a s o l u t i o n

t o

t h e above problem

Which

s

s i m p l e

and

e a s y

t o implement

n a W i r e l e s s

commu

n i c a t i o n s y s t e m .

[ 0 0 2 6 ] A c c o r d i n g t o a n a s p e c t o f

t h e

i n v e n t i o n

t h e a f o r e

mentioned o b j e c t s a r e

a c h i e v e d

by a method i n a W i r e l e s s

c o m m u n i c a t i o n s y s t e m f o r s i g n a l l i n g


p o r t s

Which a t r a n s m i t node c o m p r i s e s . A c c o r d i n g t o t h e

method


s i g n a l i s t r a n s m i t te d c a r r y i n g i n f o r

mation on number of

t

l e a s t one antenna

o r t

of

a i d

t r a n s m i t

n o d e , Wherein t h e i n f o r m a t i o n on s a i d number

of

t l e a s t one

a n t e n n a

p o r t

i s

p a r t i t i o n e d and p r o v i d e d

d i s t r i b u t e d

o v e r a t

l e a s t t W o p r e d e ? n e d p a r t s

o f

s a i d c o m m u n i c a t i o n s i g n a l .

[ 0 0 2 7 ] V a r i o u s embodiments

o f

t h e method i n a W i r e l e s s

communication

s y s t e m

a r e

d i s c l o s e d i n t h e d e p e n d e n t

c l a i m s

2 - 1 4 .

[ 0 0 2 8 ]

A c c o r d i n g

t o

a n o t h e r

a s p e c t

o f

t h e i n v e n t i o n t h e

aforementioned

o b j e c t s a r e

achieved by a

method n

a t r a n s

m i t node

i n a W i r e l e s s

communication s y s t e m

f o r s i g n a l l i n g

number

f

a n t e n n a

p o r t s

Which

a i d

t r a n s m i t

node

c o m p r i s e s .

According t o

t h e m e t h o d , s a i d t r a n s m i t node t r a n s m i t s a

communication

s i g n a l c a r r y i n g


on

number o f t

l e a s t one a n t e n n a p o r t o f

s a i d

t r a n s m i t n o d e , Wherein t h e

information on s a i d number

of a t l e a s t

one

antenna

p o r t i s

p a r t i t i o n e d

and p r o v i d e d d i s t r i b u t e d o v e r a t l e a s t tWo

p r e

d e ? n e d

p a r t s o f

s a i d c o m m u n i c a t i o n s i g n a l .

[ 0 0 2 9 ]

According

t o a n embodiment o f t h e

above-men

t i o n e d

a s p e c t o f t h e i n v e n t i o n , s a i d W i r e l e s s c o m m u n i c a t i o n

8/16/2019 Us 20110249602

7/13

US 011/0249602

A 1

s y s t e m

i s

a

LTE-A

communication

s y s t e m and

s a i d t r a n s m i t

node s a base s t a t i o n o r a r e l a y s t a t i o n

[ 0 0 3 0 ] A c c o r d i n g t o y e t

a n o t h e r

a s p e c t o f

t h e

i n v e n t i o n

t h e

aforementioned b j e c t s a r e

a c h i e v e d

by a method n a r e c e i v e

n o d e

i n

a W i r e l e s s


s y s t e m f o r

r e c e i v i n g

s i g

n a l s i n d i c a t i n g


p o r t s

Which a t r a n s m i t

n o d e c o m p r i s e s .

A c c o r d i n g t o

t h e

m e t h o d , s a i d r e c e i v e

n o d e

r e c e i v e s a communication

s i g n a l c a r r y i n g


on

number

of t l e a s t one a n t e n n a

p o r t

of s a i d

t r a n s m i t n o d e ,

Wherein

t h e information on

s a i d

number of at

l e a s t

one

a n t e n n a

p o r t

i s


l e a s t

t W o

p r e d e ? n e d

p a r t s

o f s a i d c o m m u n i c a t i o n s i g n a l .

[ 0 0 3 1 ]

According t o a n

embodiment

o f t h e above-men

t i o n e d a s p e ct

o f t h e i n v e n t i o n , s a i d

W i r e l e s s


s y s t e m

i s

a LTE-A

communication

s y s t e m and

s a i d

r e c e i v e

node s

a

mobile s t a t i o n such a s

a UE.

[ 0 0 3 2 ] A c c o r d i n g t o y e t a n o t h e r a s p e c t o f t h e i n v e n t i o n t h e

a f o r e m e n t i o n e d o b j e c t s

a r e

a c h i e v e d by a t r a n s m i t node f o r

s i g n a l l i n g

number f a n t e n n a

p o r t s

Which

s a i d t r a n s m i t node

c o m p r i s e s . S a i d t r a n s m i t n o d e

i s

a r r a n g e d

t o

p r o v i d e a n d

t r a n s m i t a

communication

s i g n a l i n

s a i d

W i r e l e s s communi

c a t i o n system c a r r y i n g i n f o r m a t i o n on number o f at

l e a s t

one

a n t e n n a p o r t

o f

s a i d t r a n s m i t

n o d e ,

W h e r e i n t h e


on s a i d number of t l e a s t one

a n t e n n a

p o r t i s p a r t i t i o n e d and

p r o v i d e d


o v e r

a t

l e ast tWo

prede?ned a r t s

o f s a i d

c o m m u n i c a t i o n s i g n a l .

[ 0 0 3 3 ] A c c o r d i n g t o y e t a n o t h e r a s p e c t o f t h e i n v e n t i o n t h e

a f o r e m e n t i o n e d

o b j e c t s

a r e

a c h i e v e d by a r e c e i v e node f o r

r e c e i v i n g

s i g n a l s i n d i c a t i n g

number

f a n t e n n a p o r t s

W h i c h a

t r a n s m i t n o d e c o m p r i s e s. S a i d r e c e i v e n o d e i s a r r a n g e d t o

r e c e i v e a n d p r o c e s s a

communication

s i g n a l c a r r y i n g i n f o r

mation on

number of

t l e a s t one antenna o r t

of

a i d t r a n s m i t

n o d e , Wherein t h e i n f o r m a t i o n on s a i d number of

t

l e a s t one

a n t e n n a

p o r t

i s


l e a s t

t W o p r e d e ? n e d

p a r t s

o f

s a i d


s i g n a l .

[ 0 0 3 4 ] The r a n s m i t

node

and

t h e r e c e i v e node

may u r t h e r

b e

c o n ? g u r e d i n

a c c o r d a n c e

W i t h t h e d i f f e r e n t embodiments

o f t h e

methods a b o v e .

[ 0 0 3 5 ] The p r e s e n t i n v e n t i o n p r o v i d e s a n a l t e r n a t i v e

method f o r si g n a l l i n g a number

o f a n t e n n a p o r t s

Which a

t r a n s m i t n o d e c o m p r i s e s . The n v e n t i o n a l s o makes t p o s s i b l e

f o r LTE-A UEs t o o b t a i n


a b o u t

t h e

a n t e n n a

p o r t

c o n ? g u r a t i o n f o r a t r a n s m i t node

e .

g . a eNB o r a r e l a y

n o d e )

f o r

performing communication i t h t h e

s a m e ,

and t t h e same

t i m e i n f o r m a t i o n f o r LTE-A

UEs s

t r a n s p a r e n t t o

LTE UEs

and

h a s

no

impact

on

t h e

LTE Es.

T h e r e f o r e , a

s o l u t i o n t o

t h e

b a c k w a r d s c o m p a t i b i l i t y p r o b l e m

d e s c r i b e d

a b o v e

i s

a l s o

p r o v i d e d b y t h e i n v e n t i o n .

[ 0 0 3 6 ] O t h e r a d v a n t a g e s a n d a p p l i c a t i o n s o f t h e p r e s e n t

i n v e n t i o n W i l l

b e

a p p a r e n t f r o m t h e

f o l l o W i n g d e t a i l e d

d e s c r i p t i o n

o f t h e i n v e n t i o n .

BRIEF

DESCRIPTION OFTHE DRAWINGS

[ 0 0 3 7 ] The a p p e n d e d d r a W i n g s a r e

i n t e n d e d t o

c l a r i f y a n d

e x p l a i n t h e p r e s e n t i n v e n t i o n i n W h i c h :

[ 0 0 3 8 ]

F I G .

1

s h o W s

t h e p r o c e d u r e o f b l i n d d e t ec t i o n o f

PBCH

n

L T E ;

[ 0 0 3 9 ]

F I G .

2

s h o W s

t h e p r o c e d u r e o f b l i n d d e t ec t i o n o f

PBCH n LTE

Advanced

L T E - A ) ;

[ 0 0 4 0 ]

F I G .

3 shoWs a p r i n c i p a l s t r u c t u r e o f a n exemplary

t r a n s m i t n o d e

a p p a r a t u s a c c o r d i n g t o

t h e

i n v e n t i o n ;

a n d

O c t . 1 3 , 2 0 1 1

[ 0 0 4 1 ] F I G . 4

shoWs

a p r i n c i p a l s t r u ct u r e o f a n exemplary

r e c e i v e n o d e a p p a r a t u s a c c o r d i n g t o t h e

i n v e n t i o n .

DETAILED DESCRIPTION OFEMBODIMENTS

OF

THE

INVENTION

[ 0 0 4 2 ]

The

r e s e n t

i n v e n t i o n

r e l a t e s t o

a method n a W i r e

l e s s

communication

f o r s i g n a l l i n g i n f o r m a t i o n a b o u t a num

b e r o f

a n t e n n a

p o r t s a

t r a n s m i t

node c o m p r i s e s , Where t h e

t r a n s m i t

node

can

be

a base s t a t i o n ,

eNB, r e l a y s t a t i o n o r

a

r e l a y

n o d e .

A c c o r d i n g to a n embodiment f h e p r e s e n t

i n v e n

t i o n

i n f o r m a ti o n a b o u t

t h e

number o f d e p l o y e d

DL

n t e n n a

p o r t s i n

LTE-A

s y s t e m

i s c l a s s i ? e d i n t o

t y p e

I

a n d t y p e

I I

i n f o r m a t i o n . Type


i n d i c a t e s t h e

number f LTE

a n t e n n a

p o r t s , and y p e

I I

i n f o r m a t i o n i n d i c a t e s

t h e

number f

a n t e n n a

p o r t s de?ned by LTE-A S I - R S , o r a l s o i n d i c a t e s t h e

t o t a l number f a n t e n n a

p o r t s

Which a r e de?ned by o t h LTE

CRSs and LTE-A

CSI-RSs.

[ 0 0 4 3 ] T h u s , t y p e I a n d t y p e I I i n f o r m a t i o n W i l l i n d i c a t e


a b o u t

a number

o f

d i f f e r e n t t y p e s of

a n t e n n a

p o r t s .

I n t h e

LTE-A

s y s t e m ,

LTE UEs

o n l y

n e e d

t o

r e c e i v e

t y p e

I


t o knoW t h e

e x a c t

number of LTE

a n t e n n a

p o r t s , and t h e n u s e t h e

o b t a i n e d

a n t e n n a p o r t i n f o r m a t i o n

t o

p e r f o r m communication

W i t h a LTE-A eNB; W h i l e LTE-A

UEs

W i l l

r e c e i v e b o t h

t y p e

I and

t y p e

I I


f o r

d i f f e r e n t

p u r p o s e s , ie t h e t y p e

I


i s u s e d

f o r

demodulating one o r more c o n t r o l c h a n n e l s , and t h e t y p e I I

i n f o r m a t i o n s

u s e d f o r

c h a n n e l

measurement

o s u p p o r t h i g h

l a y e r t r a n s m i s s i o n .

[ 0 0 4 4] T h e r e f o r e , a

method i n

a W i r e l e s s

communication

system

f o r s i g n a l l i n g a number o f a n t e n n a p o r t s Which a

t r a n s m i t

n o d e c o m p r i s e s i s p r e s e n t e d .

A c c o r d i n g

t o

t h e

m e t h o d ,

a

c o m m u n i c a t i o n s i g n a l i s t r a n sm i t t e d c a r r y i n g


about a

number of t

l e a s t one antenna o r t of h e

t r a n s m i t

n o d e .

The i n f o r m a t i o n a b o u t t h e number o f a t l e a s t

one

a n t e n n a

p o r t

i s

p a r t i t i o n e d

and

p r o v i d e d


o v e r

a t l e a s t t W o p r e d e ? n e d

p a r t s o f

t h e c o m m u n i c a t i o n s i g n a l .

[ 0 0 4 5 ]

The o m m u n i c a t i o n i g n a l

i s a c c o r d i n g o

t h e

i n v e n

t i o n

a number

of

b i t s t r a n s m i t t e d

on

at l e a s t one p h y s i c a l

c h a n n e l , and t h e i n f o r m a t i o n

a b o u t

t h e

number

o f

a n t e n n a

p o r t s p a r t i t i o n e d i n t o a t l e a s t tWo a r t s , Which r e d i s t r i b u t e d

i n d i f f e r e n t

p a r t s

among s a i d

number

of i t s o f

t h e

commu

n i c a t i o n s i g n a l . I n t h i s

m a n n e r ,

t h e a n t e n n a p o r t


i s

embedded n t o t h e communication

s i g n a l ,

ie t h e

commu

n i c a t i o n s i g n a l c a r r i e s t h e a n t e n n a p o r t i n f o r m a ti o n . At e a s t

o n e

p a r t

o f t h e c o m m u n i c a t i o n

s i g n a l

s h o u l d

b e

i d e n t i ? e d

b y

LTE

UEs, and t l e a s t one a n o t h e r p a r t

o f

t h e

communication

s i g n a l

s h o u l d

b e t r a n s p a r e n t t o LTE UEs, Which i n

o n e

embodiment of

h e

i n v e n t i o n

c o r r e s p o n d s

t o

a

? r s t and second

p r e d e t e r m i n e

p a r t

o f

h e c o m m u n i c a t i o n s i g n a l , r e s p e c t i v e l y .

[ 0 0 4 6 ] T o s u p p o r t

b a c k W a r d s

c o m p a t i b i l i t y a n d a c h i e v e

t r a n s p a r e n t o p e r a t i o n

o f LTE UEs

i n LTE-A c e l l s , t y p e I


c o r r e s p o n d i n g t o

t h e

? r s t p a r t i t i o n e d p a r t o f t h e

i n f o r m a t i o n a b o u t

t h e

number f a n t e n n a

p o r t s can n

a n o t h e r

embodiment

o f t h e

i n v e n t i o n

b e

c o n v e y e d u s i n g

t h e

same

p r i n c i p l e a s

i n LTE e l l s ,

and

t i s d e t e c t a b l e b o t h to LTE

and

LTE-A

E s .

T h u s ,

t y p e I i n f o r m a t i o n

i s i m p l i c i t l y

t r a n s m i t

t e d t h r o u g h s c r a m b l i n g t h e CRC i t s o f a B r o a d c a s t C h a n n e l

(BCH)

t r a n s p o r t

block t r a n s m i t t e d

on a

PBCH ith

a

CRC

mask

s e q u e n c e c o r r e s p o n d i n g t o t y p e I i n f o r m a t i o n ,

a n d

t h e

PBCH i l l be t r a n s m i t t e d u s i n g a t

most

f o u r

LTE

a n t e n n a

p o r t s , W h e r e i n t h e BCH r a n s p o r t b l o c k , i n c l u d i n g t h e

s c r a m b l e d CRC i t s , c o r r e s p o n d s

t o

t h e


s i g

n a l , a n d

t h e

s c r a m b l e d CRC

i t s

c o r r e s p o n d t o

t h e ? r s t

p r e

d e ? n e d

p a r t o f

t h e

c o m m u n i c a t i o n s i g n a l . T h e q u e s t i o n

8/16/2019 Us 20110249602

8/13

US 011/0249602

A 1

r e g a r d i n g

hoW many a n t e n n a

p o r t s

t h a t

a r e

used o r

t r a n s m i t

t i n g

t h e PBCH e p e n d s on t h e c o n ? g u r a t i o n o f LTE a n t e n n a

p o r t s i n a LTE-A e l l .

[ 0 0 4 7 ] A f t e r d e t e c t i n g t y p e i n f o r m a t i o n , t h e LTE UE i l l

c o n t i n u e o p e r a t i o n a c c o r d i n g

t o

t h e

i d e n t i ? e d

number

o n e ,

tWo

o r t h r e e ) o f a n t e n n a

p o r t s

i n

t h a t

c e l l .

However, an LTE-A

UE l s o

h a s t o d e c o d e t y p e I I i n f o r m a ti o n c o r r e s p o n d i n g to

t h e

s e c o n d p a r t i t i o n e d

p a r t

o f

t h e

i n f o r m a t i o n a b o u t

t h e num

b e r of

n t e n n a

p o r t s b e f o r e t can

b t a i n

t h e e x a c t i n f o r m a t i o n

a b o u t t h e

number o f d e p l o y e d

a n t e n n a p o r t s t h e

LTE-A

UE

may

s e , s i n c e a LTE-A

UE a s

t o ?nd

o u t

t h e

number of


de?ned

by LTE-A CSI-RSs f o r

c h a n n e l

mea

s u r e m e n t .

T h e r e f o r e , t h e

t y p e

I I


i s d e t e c t a b l e

o n l y

t o LTE-A UEs.

[ 0 0 4 8 ] I n t h e LTE e l - 8 s y s t e m , t h e s i Z e o f a BCH r a n s p o r t

block r a n s m i t t e d on a

PBCH

s 24 i t s , and h e r e a r e 10 s p a r e

b i t s

Which a r e

r e s e r v e d

f o r f u t u r e communication s y s t e m .

The

1 0 s p a r e b i t s

a r e

set t o Z e r o , and

LTE UEs

i l l

i g n o r e

t h e

1 0 s p a r e b i t s t o g u a r a n t e e

b a c k w a r d s / f o r w a r d c o m p a t i b i l i t y ,

i . e . LTE UEs

i l l n o t i n t e r p r e t t h e 1 0 s p a r e b i t s r e g a r d l e s s

o f

What

k i n d o f


t h a t i s

embedded n t o t h e

1 0

s p a r e

b i t s .

Thus,

one o r

more

of t h e 10

s p a r e

b i t s o r s t a t e s

r e p r e

s e n t e d

by t h e 1 0

b i t s c a n

be

used

t o i n d i c a t e

t y p e

I I i n f o r m a

t i o n , and t h e r e W i l l n o t be any

i m p a c t

on LTE UEs PBCH

d e t e c t i o n

and

t h e i n t e r p r e t a t i o n o f t h e i n f o r m a t i o n b i t s

on

t h e

BCH,

Wherein

t h e one o r more of t h e 10 s p a r e b i t s i n

BCH

t r a n s p o r t

b l o c k

c o r r e s p o n d

t o t h e s e c o n d p r e d e ? n e d p a r t o f

t h e communication i g n a l . R e g a r d i n g hoW

many

i t s o r s t a t e s

t h a t

a r e needed

f o r

i n d i c a t i n g

t h e number o f a n t e n n a

p o r t s

de?ned by LTE-A CSI-RS d e p e n d s

on t h e

d e ? n i t i o n o f

LTE-A C S I - R S . A f t e r LTE-A UEs

s u c c e s s f u l l y

d e t e c t

t h e

PBCH,

. e .

t h e CRC e t e c t i o n i s c o r r e c t ,

t y p e

I


W i l l b e o b t a i n e d , and

t h e n

t h e LTE-A

UEs

f u r t h e r d e t e c t t h e

c o n t e n t

of h e BCH

r a n s p o r t block r a n s m i t t e d

on h e PBCH

t o o b t a i n t h e

t y p e I I

i n f o r m a t i o n . I n o t he r

W o r d s ,

i f t h e PBCH

i s

c o r r e c t l y

d e t e c t e d

by

LTE-A

UEs

t h e y

W i l l knoW

t h e

e x a c t

number o f a n t e n n a p o r t s .

I n

t h i s W a y , LTE UEs and LTE-A

UEs can o b t a i n t h e i r d e s i r e d a n t e n n a

p o r t

i n f o r m a t i o n ,

r e s p e c t i v e l y ,

and

h i s s i g n a l l i n g

method a s

no

m p a c t

on

LTE

UE e r f o r m a n c e ,

a n d t h e r e f o r e t r a n s p a r e n t

t o

LTE U E s , i . e .

t h e

r e q u i r e m e n t o f

b a c k W a r d s c o m p a t i b i l i t y

i s

a c h i e v e d .

[ 0 0 4 9 ] I n t h e f o l l o W i n g

f u r t h e r

e m b o d i m e n t s o f t h e i n v e n

t i o n i n

t e r m s

of

e ? n i t i o n

of

LTE-A CSI-RSs and h e r e l a t i o n

betWeen LTE RSs

and

LTE-A CSI-RSs a r e d i s c l o s e d .

Embodiment

A

[ 0 0 5 0 ] When

h e maximum

u m b e r

o f

s u p p o r t e d

l a y e r s

b y

a

LTE-A eNB o r b a s e s t a t i o n ) t o LTE-A UEs

s

e i g h t ,

t h e

number

o f LTE-A a n t e n n a p o r t s W i l l b e e i g h t .

The

e i g h t

LTE-A n t e n n a p o r t s a r e

de?ned by i g h t LTE-A CSI-RSs f o r

e i t h e r

channel measurement, o r

f o r

both channel measure

ment a n d d e m o d u l a t i o n t o s u p p o r t e i g h t l a y e r s t r a n s m i s s i o n .

F u r t h e r m o r e , t h e

e i g h t LTE-A

CSI-RSs

a r e i n d e p e n d e n t

o f

LTE CRSs,

a n d

t h e number o f LTE a n t e n n a

p o r t s

de?ned by

LTE CRSs can be

c o n ? g u r a b l e .

[ 0 0 5 1 ]

The number

o f

con?gured LTE a n t e n n a p o r t s i n

a

LTE-A e l l

can

be

o n e ,

tWo

or four

based on

t h e

a c t u a l

s i t u a t i o n o f t h e

s y s t e m .

F o r i n s t a n c e , t h e r e may be more LTE

UEs

to

b e

s u p p o r t e d a t

t h e

b e g i n n i n g

s t a g e o f a LTE-A s y s

t e m ,

and hence . g .

f o u r LTE

a n t e n n a

p o r t s c a n b e con?gured

to

s u p p o r t LTE UEs;

a s

e v o l u t i o n o f

s y s t e m

o r

t i m e

p a s s i n g ,

t h e r e may

be more

and

more

LTE-A UEs n

t h e system

n s t e a d

of LTE UEs,

s o i t may o t

be

e c e s s a r y

t o

con?gure

f o u r LTE

a n t e n n a

p o r t s i n t h i s s i t u a t i o n

f o r

r e d u c i n g

RS o v e r h e a d .

O c t . 1 3 , 2 0 1 1

[ 0 0 5 2 ] I n

t h e

c a s e When

a

LTE-A eNB u p p o r t s up t o f o u r

l a y e r s t r a n s m i s s i o n f o r LTE-A U E s ,

t h e

number

o f

LTE-A

a n t e n n a

p o r t s

W i l l

b e

f o u r and t h e number o f

LTE

a n t e n n a

p o r t s i s f o u r . I n t h i s

c a s e , no

neW LTE-A SI-RSs a r e

de?ned

and

LTE-A UEs

W i l l u s e t h e f o u r

LTE

antenna

p o r t s

t o

p e r

form

b o t h c h a n n e l

measurement

and d e m o d u l a t i o n .

[ 0 0 5 3 ] I f t h e

maximum

u p p o r t e d a y e r s f o r LTE-A UEs y

a LTE-A eNB s one

o r

t W o , t h e r e i s

s i m i l a r

antenna p o r t

c o n ? g u r a t i o n

a s i n

t h e

c a s e

f o r up o

f o u r

l a y e r s t r a n s m i s s i o n ,

i . e .

t h e r e i s no neW LTE-A CSI-RSs i n a d d i t i o n

t o

LTE

a n t e n n a o r t s . The a n t e n n a

p o r t

c o n ? g u r a t i o n

i n

h i s embodi

ment

s summarized n

T a b l e 1 .

TABLE

A n t e n n a p o r t c o n ? g u r a t i o n

i n

LTE-A

Number of LTE Number of n t e n n a

p o r t s d e ? n e d b y

LTE-A

CSI-RS

Maximum

o f

a y e r s

s u p p o r t e d f o r LTE-A

UEs by a LTE-A eNB

a n t e n n a

p o r t s

de?ned b y LTE CRS

[ 0 0 5 4 ] Based on Table , one i t

o r

tWo s t a t e s can be used o

i n d i c a t e

t y p e

I I i n f o r m a t i o n ,

i . e .

t h e

number

f a n t e n n a p o r t s

de?ned

by

LTE-A

CSI

RSs s

Z e r o o r e i g h t .

F o r e x a m p l e ,

t h e

t y p e I I

i s one

b i t

i n f o r m a t i o n ,

Where ‘ 0 ’

c o u l d

i n d i c a t e

t h a t

t h e r e i s no LTE-A CSI-RS n

t h e

LTE-A e l l , and LTE-A UEs

should use t h e LTE ntenna

p o r t s

f o r c h a n n e l

measurement

and d e m o d u l a t i o n , and 1 ’ c o u l d i n d i c a t e t h a t t h e r e a r e e i g h t

LTE-A

CSI-RSs

i n

a d d i t i o n

t o

a number of LTE

RSs i n d i

c a t e d b y

t y p e

I i n f o r m a t i o n .

TABLE . 1

E n c o d i n g t y p e

I I


Type I i n f o r m a t i o n

Number

f a n t e n n a p o r t s de?ned by

LTE-A

CSI-RS

Embodiment B

[ 0 0 5 5 ]

When h e

maximum

number f s u p p o r t e d a y e r s

f o r

LTE-A UEs by

LTE-A

eNB s o n e , tWo o r

f o u r ,

t h e a n t e n n a

p o r t c o n ? g u r a t i o n

i s

t h e same a s

i n

embodiment 1 a b o v e .

I f

t h e maximum s u p p o r t e d l a y e r s b y LTE-A eNB s

e i g h t ,

t h e

number

f

LTE a n t e n n a

p o r t s

i s assumed o

b e

n , Where n : 1 ,

2 , o r , and h e neW added

LTE-A

CSI-RSs s 8 - n .

LTE-A UEs

use

t h e combination ofLTE

RSs and LTE-A

CSI-RSs

t o

do

c h a n n e l

measurement, i . e . 8 - n number of CSI-RSs and n

number

o f

LTE CRSs.

The

p o s s i b l e

a n t e n n a

p o r t

c o n ? g u r a

t i o n s

a r e

summariZed

i n T a b l e 2 .

8/16/2019 Us 20110249602

9/13

US 011/0249602

A 1

TABLE

A n t e n n a p o r t

c o n ? g u r a t i o n s i n LTE-A

Maximum o f l a y e r s

Number

f

LTE Number

f

a n t e n n a

s u p p o r t e d

f o r LTE-A UEs

a n t e n n a

p o r t s d e ? n e d p o r t s d e ? n e d b y

by

a LTE-A eNB

by

LTE CRS LTE-A

CSI-RS

1 1 0

2 2 0

4 4 0

s 1

7

s 2 6

s 4 4

[ 0 0 5 6 ] I n

h i s embodiment

h e r e a r e

two

p o s s i b l e

s o l u t i o n s

to i n d i c a t e

t h e number of

LTE-A

antenna

o r t s .

A l t e r n a t i v e

1

:

two

b i t s

o r f o u r s t a t e s a r e needed t o r e p r e s e n t t y p e I I

i n f o r

m a t i o n . F o r e x am p l e , t y p e I I i n f o r m a t i o n

i n d i c a t e d by

t w o

b i t s : ‘ 0 0 ’ , ‘ 0 1 ’ , ‘ 1 0 ’ a n d ‘ 1 1 ’ r e p r e s e n t t h a t t h e

number

o f

LTE-A

S I - R S s

i s 0 , 4 , 6 a n d , r e s p e c t i v e l y ,

w h i c h

s

shown

i n T a b l e 2 . 1 .

TABLE

. 1

E n c o d i n g

t y p e

I I


b i t s

Number f a n t e n n a p o r t s

T y p e I I


d e ? n e d b y LTE-A

CSI-RS

. 0 0 ,

. 0 1 ,

. 1 0 ,

. 1 1 ,

[ 0 0 5 7 ] A l t e r n a t i v e 2 :

o n l y

one

i t i s u s e d

t o i n d i c a t e

t y p e I I

i n f o r m a t i o n . Given h a t t h e number f

LTE


1

i s

d e t e c t e d ,

t h e

number

o f LTE-A a n t e n n a

p o r t s

h a s

o n l y two

p o s s i b l e

v a l u e s ,

i . e .

0 a n d 8 - n ,

which

c a n b e

i n d i c a t e d

by o n e

b i t a s shown

n

T a b l e 2 . 2 b e l o w .

TABLE . 2

E n c o d i n g

t y p e I I i n f o r m a t i o n b i t s

Number f a n t e n n a p o r t s

T y p e I I


d e ? n e d b y

LTE-A

CSI-RS

Embodiment C

[ 0 0 5 8 ] A s s u m i n g t h e maximum n u m b e r

o f s u p p o r t e d l a y

e r s f o r LTE-A UEs t a LTE-A

eNB s N

nd

t h e

number

of

c o n ? g u r e d LTE a n t e n n a

p o r t s

i s M, w h e r e M

8/16/2019 Us 20110249602

10/13

US 011/0249602

A 1

used by LTE-A UEs f o r c h a n n e l m e a s u r e m e n t .

I n

t h i s c a s e ,

LTE-A

a n t e n n a

p o r t s i n c l u d e

b o t h

LTE a n t e n n a

p o r t s

and

a n t e n n a

p o r t s

de?ned by

LTE-A S 1 .

The

t y p e 1 1 i n f o r m a t i o n

can be encoded

a s

shown

n

Table 4 . 1 .

T a b l e

4 . 1

E n c o d i n g t y p e 1 1 i n f o r m a t i o n b i t s

O c t . 1 3 , 2 0 1 1

e q u a l o t h e

maximum

u p p o r t e d a y e r s

b y

LTE-A eNB

n t h i s

c a s e .

There

a r e tWo embodiments

f o l l o w i n g

t h i s p r i n c i p l e ,

[ 0 0 6 7 ] The number

f LTE a n t e n n a p o r t s i s c o n ? g u r a b l e

o n l y When

t h e r e a r e e i g h t

LTE-A S 1 .

[ 0 0 6 8 ] The

number f LTE a n t e n n a p o r t s i s c o n ? g u r a b l e

f o r any

number

of LTE-A

C S 1 .

T y p e 1 1 Number f a n t e n n a p o r t s d e ? n e d b y

LTE-A

CS1-RS Embodiment

1

information

Case Case

2

Case

_ _ _ _ _

[ 0 0 6 9 ]

One

1 t t y p e

1 1

1 n f o r m a t 1 o n

c a n b e

used t o 1 n d 1 c a t e

: 8 ‘ ; i g 2 t h e a n t e n n a p o r t c o n ? g u r a t i o n

s h o W n

i n

T a b l e 6 . 1 .

‘ 1 0 ’ 3 6 x

‘ 1 1 ’ 7 X X T BLE

.1

. .

Th

b fLTE

t rt 1 ? b 1 h

th

ht

[ 0 0 6 3 ] I t should

be

noted t h a t t h e

1 n t e r p r e t a t 1 o n

of

h e t y p e 6

Hum

e r 0

a n

em’

S T ;

i 2 1 8 ? i o s n

gum

e W

e n

m r e 6 1 g

1 1 information s

d i f f e r e n t

in

i f f e r e n t c a s e s , i . e .

the number f _ _ S

con?gured LTE a n t e n n a p o r t s .

LTE-A

UEs W i l l i n t e r p r e t t h e

type

1 1

information

depending

on

t h e d e t e c t e d

type

1

i n f o r -

Maximum

O f l a y e r s

f o r Number

f

LTE Number

f a n t e n n a

mation' LTE-A UEs

s u p p o r t e d

a n t e n n a

p o r t s p o r t s

d e ? n e d

b y

a LTE-A

eNB de?ned by

LTE

CRS b y

LTE-A CS1-RS

Embodiment

E

1 1 1

[ 0 0 6 4 ]

I n t h i s

embodiment,

t h e o n l y d i f f e r e n c e from t h e

2 2 2

above embodiment

s t h a t

e i g h t LTE-A CS1s a r e

de?ned

When

4 4 4

t h e

maximum f

l a y e r s

s u p p o r t e d

by

LTE-A

eNB s e i g h t .

8 1 8

8 2 8

TABLE

8 4 8

Antenna o r t c o n ? g u r a t i o n i n LTE-A

Maximum o f l a y e r s f o r Number f

LTE

Number of

n t e n n a

LTE-A UEs s u p p o r t e d b y a n t e n n a

p o r t s p o r t s

d e ? n e d Table

6 ~ 1

~ 1

a LTE-A eNB

de?ned by LTE

CRS

by LTE-A CS1-RS

E n c o d i n g

t y p e 1 1 i n f o r m a t i o n

b i t s

1 1 0

2 1 1 Type 1 Number of

n t e n n a

p o r t s de?ned by LTE-A CS1-RS

2 0

4 1 3 i n f o r m a t i o n

Case

1

Case

2

Case

3

2 2

4 0 ‘ 0 ’ 1 2 4

8 1 8 ‘ 1 ’ 8 8 8

8 2 8

8 4 8

_ _ _ _ _ mbodimentF

[ 0 0 6 5 ]

The

t y p e 1 1

r n f o r r n a t r o n can 1 n t h 1 s

embodrment

be

encoded

W i t h

tWo b i t s of n f o r m a t i o n

o r f o u r

s t a t e s .

I n

t h i s

[ 0 0 7 0 ]

embodiment, We assume t h a t f o u r s t a t e s

of

t h e 10 s p a r s e

PBCH

i t s

a r e

used

t o r e r e s e n t t h e e

1 1 information.

p t y p TABLE . 2

TABLE . 1

E n c o d i n g o f t y p e 1 1


b i t s

Type 1 Number

o f

a n t e n n a p o r t s de?ned by

LTE-A

CS1-RS

i n f o r m a t i o n Case

1 Case 2 Case 3

‘0000000001’ 0 0 0

‘0000000010’ 1 2 X

‘ 0 0 0 0 0 0 0 0 1 1 ’

3

X X

‘0000000100’

8 8 8

Embodiment F

[ 0 0 6 6 ] I n

o r d e r

t o s u p p o r t

LTE-A UEs

m u l t i p l e l a y e r s

t r a n s m i s s i o n , a

number

o f LTE-A CS1 a r e d e ? n e d ,

Which

s

The number

o f

LTE a n t e n n a p o r t s i s

c o n ? g i r a b l e

Maximum

of

a y e r s f o r

Number

of

LTE

Number

of n t e n n a

LTE-A UEs s u p p o r t e d

a n t e n n a

p o r t s p o r t s de?ned

b y

a LTE-A eNB

de?ned b y

LTE

CRS by

LTE-A

CS1-RS

1 1 1

2 1 2

2 2

4 1 4

2 4

4 4

8 1 8

8 2 8

8

4

8

[ 0 0 7 1 ] I n t h i s embodiment

o f t h e i n v e n t i o n , t h e t y p e 1 1

information

s

encoded

a s

tWo i t s .

8/16/2019 Us 20110249602

11/13

US 011/0249602

A 1

TABLE . 2 . 1

E n c o d i n g

t y p e I I i n f o r m a t i o n

b i t s

Type I

Number

o f a n t e n n a

p o r t s

de?ned

b y

LTE-A

CSI-RS

i n f o r m a t i o n Case

1

Case

2

Case

3

‘00’ 1 x x

‘01

2 2 X

‘ 1 0 ’ 4 4 4

‘ 1 1 ’ 8 8 8

Embodiment

G

[ 0 0 7 2 ] When h e

maximum

o f

l a y e r s f o r

LTE-A UEs s u p

p o r t e d by LTE-A eNB

s o n e

( o r t w o ) , t h e r e w i l l

b e

o n e ( o r

t w o ) LTE

a n t e n n a p o r t s which a r e used f o r LTE-A c h a n n e l

measurement and demodulation, and no new LTE SI-RSs

a r e d e ? n e d ; t h e

number

f LTE

a n t e n n a

p o r t s

i s

c o n ? g u r a b l e

and some

new

LTE-A

CSI-RSs

a r e

de?ned

shown

i n Table

b e l o w .

TABLE

Antenna

o r t

c o n ? g u r a t i o n i n

LTE-A

Maximum

of

a y e r s f o r Number

of

LTE

Number f a n t e n n a

LTE-A UEs s u p p o r t e d a n t e n n a

p o r t s p o r t s

d e ? n e d

b y

by a LTE-A

eNB

de?ned by

LTE CRS LTE-A CSI-RS

1 1 0

2 2 0

4 1 4

2 4

4

0

8 1 8

8 2 8

8

4

8

[ 0 0 7 3 ] I n t h i s c a s e , t h r e e states a r e s u ? i c i e n t t o r e p r e s e n t

t y p e I I i n f o r m a t i o n a s

shown n

T a b l e

7 . 1 .

TABLE . 1

E n c o d i n g

t y p e I I i n f o r m a t i o n

b i t s

Type

I i n f o r m a t i o n Number f

a n t e n n a

p o r t s

de?ned by

LTE-A CSI-RS

‘0000000001’ 0

‘0000000010’

4

‘0000000011’

8

[ 0 0 7 4 ]

A n e x a m p l e o f

how


o f


about

a

number

of

antenna

p o r t s t h a t

a t r a n s m i t

node

com

p r i s e s may e implemented

n

a LTE-A

communication

s y s

tem s

d e s c r i b e d b e l o w ,

i n

which t h e a n t e n n a p o r t c o n ? g u r a

t i o n i n f o r m a t i o n

i s t r a n s m i t t e d t h r o u g h

a

LTE-A PBCH.

The

b l i n d

d e t e c t i o n

o f LTE-A

PBCH

s i l l u s t r a t e d

i n

F I G .

2 .

[ 0 0 7 5 ]

The t r a n s m i t t i n g p r o c e d u r e o f a LTE-A PBCH

i n v o l v e s t h e s t e p s o f :

[ 0 0 7 6 ] U s i n g

t h e

e n t i r e

t r a n s p o r t

b l o c k o f

LTE-A

PBCH

a 0 , a 1 ,

. . .

aA_l (in which one

or more

explicit bits


t o t y p e

I I

i n f o r m a t i o n i n d i c a t e

t h e num

b e r o f

a n t e n n a

p o r t s

de?ned

b y

LTE-A

C S I - R S ) t o

c a l

culate the CRC

arity

b i t s

p 0 , p l ,

. . .

p L _ l ,

whereA

and

L r e

t h e v a l u e o f

r a n s p o r t

b l o c k s i z e

andCRC

i t s s i z e ,

r e s p e c t i v e l y .

O c t . 1 3 , 2 0 1 1

[ 0 0 7 7 ]

S c r a m b l i n g

t h e c a l c u l a t e d CRC a r i t y b i t s p 0 , p ,

. . .

p _ , with

CRC

ask

04,

x04,

. . .

x154 correspond

i n g t o

t y p e

I


a b o u t t h e

number

o f

LTE

antenna

p o r t s , i . e .

ci:(pi+xi4)mod 2 , i I O ,

1 ,

. . . 1 5 .

[0078] Attaching

the

scrambled

CRC

0 , c l ,

. . .

cl5

to

the

transport block of

LTE-A

PBCH 0 , a 1 ,

. . . a

_ for

obtaining a0 , a1 , . . . , a A _ 1 , c 0 ,

cl,

. . . , cls.

[ 0 0 7 9 ]

P e r f o r m i n g

c h a n n e l

c o d i n g ,

r a t e m a t c h i n g ,

a n d

modulation on he information

bits

a 0 , a 1 , . . . aA_l, c 0 ,

cl, . . . , c 5.

[ 0 0 8 0 ] P e r f o r m i n g s p a t i a l e n c o d i n g o n

t h e m o d u l a t i o n

symbols such

a s

SFBC

r

SFBC+FSTD epending

on

t h e number o f

LTE


[ 0 0 8 1 ] Mapping t h e o u t p u t

o f

t h e a b o v e s t e p o n t o t h e

reserved resources

f o r PBCH on

a number of LTE


[ 0 0 8 2 ]

A c c o r d i n g

t o y e t a n o t h e r embodiment o f t h e i n v e n

t i o n , i n a d d i t i o n o t r a n s m i t

t h e

t y p e

I I


t h e

BCH

t r a n s p o r t

b l o c k , t he

t y p e

I I

i n f o r m a t i o n c a n a l s o b e t r a n s m i t

t e d

on

o t h e r c h a n n e l s ,

s u c h

a s

P h y s i c a l

Downlink

S h a r e d

C h a n n e l P D S C H ) . D y n a m i c B r o a d c a s t C h a n n e l

(DBCH) s

a n o t h er t y p e

o f

r o a d c a s t t r a n s p o r t c h a n n e l w h i c h i s mapped

o n t o t h e PDSCH n t h e p h y s i c a l

l a y e r .

T h i s t y p e o f PDSCH

i s


i n

a p r e d e ? n e d s u b - f r a m e ,

and l l

a c t i v e UEs

n

a

e l l w i l l r e c e i v e h i s

t y p e

ofPDSCH

o

o b t a i n f u r t h e r system


i n

a d d i t i o n t o

b r o a d c a s t

i n f o r m a t i o n conveyed

on

the

PBCH.

n a

LTE-A ystem,

some new

nformationbits

can

b e de?ned

i n DBCH,

which

a r e

o n l y

v a l i d

f o r LTE-A

UEs,

e . g .

s e v e r a l b i t s i n DBCH r e

u s e d

t o i n d i c a t e t h e number

o f

a n t e n n a

p o r t s de?ned by LTE-A CSI-RS. I n t h i s c a s e , t h e

communication

s i g n a l c o r r e s p o n d s t o a

BCH

r a n s p o r t

b l o c k

i n c l u d i n g

s c r a m b l e d

CRC

i t s a n d

DBCH

r a n s p o r t b l o c k

mapped

o n t o PDSCH o g e t h e r , and t h e ? r s t a n d s e c o n d

p r e

d e ? n e d

p a r t s

o f

t h e c o m m u n i c a t i o n

s i g n a l c o r r e s p o n d t o

s c r a m b l e d

CRC i t s o f t h e BCH nd t h e i n f o r m a t i o n b i t s o f

t h e DBCH r a n s p o r t b l o c k , r e s p e c t i v e l y .

[ 0 0 8 3 ] B e f o r e a LTE-A UE b t a i n s t h e number

of

LTE-A

a n t e n n a p o r t s , i t can o n l y

know

t h e number o f LTE a n t e n n a

p o r t s t h r o u g h

d e t e c t i n g

PBCH.

I n o r d e r o

d e t e c t

t h e

PDSCH

on which DBCH o n t a i n i n g

t y p e

I I


i s

mapped,

t h i s PDSCH must be t r a n s m i t t e d on t h e con?gured LTE

a n t e n n a

p o r t s

which

a r e

i n d i c a t e d by

t y p e

I i n f o r m a t i o n ,

o t h e r w i s e

LTE-A

UE an n o t d e t e c t

t h e

PDSCH. T h u s ,

t h e

p r o c e d u r e

i s t h a t

a LTE-A UE r s t l y d e t e c t s t h e PBCH

o

g e t

t h e number

of

LTE a n t e n n a p o r t s , and t h e n

go

t o t h e p r e

d e ? n e d

s u b - f r a m e

t o

d e t e c t t h e s p e c i a l PDSCH

a r r y i n g

DBCH

n f o r m a t i o n . A f t e r t h e d e t e c t i o n o f t h e PDSCH, t h e

LTE-A

UE i l l o b t a i n t h e number

o f

LTE-A a n t e n n a

p o r t s ,

and

then can

switch t o LTE-A ode.

[ 0 0 8 4 ]

The

r e s en t i n v e n t i o n a l s o r e l a t e s t o

a

t r a n s m i t node

a p p a r a t u s

a n d

a r e c e i v e

n o d e

a p p a r a t u s

c o n ? g u r e d

a c c o r d i n g

t o t h e d i f f e r e n t embodiments

of

h e

method

a b o v e .

[ 0 0 8 5 ] F I G . 6

shows

a

p r i n c i p l e

s t r u c t u r e o f an example

t r a n s m i t node a p p a r a t u s 6 0 1) f o r a w i r e l e s s c o m m u n i c a t i o n s

s y s t e m a c c o r d i n g

t o

t h e p r e s e n t i n v e n t i o n . The r a n s m i t node

a p p a r a t u s c o m p r i s e s t r a n s m i s s i o n c i r c u i t r y ( 6 0 1 , 6 0 6 ) h a v i n g

one

or more

antenna

o r t s f o r transmission

of communication

s i g n a l s

over

one

o r more antennas (602-605). P r i o r

t o t r a n s

m i s s i o n , s i g n a l s c a r r y i n g

i n f o r m a t i o n on number f a n t e n n a

p o r t s a r e p r o c e s s e d n p r o c e s s i n g c i r c u i t r y

( 6 0 1 ,

6 0 7 ) . D i f f e r

e n t s i g n a l p a r t s a r e p r e d e ? n e d

p r e f e r a b l y

i n memory e v i c e s

o f t h e

a p p a r a t u s 6 0 1 )

i n c l u d e d i n o r

c o n n e c t e d

t o t h e p r o

c e s s i n g c i r c u i t r y p a r t ( 6 0 7 ) . T h e

p r o c e s s i n g c i r c u i t r y

com

p r i s e s

modules

f o r p a r t i ti o n i n g

t h e i n f o r m a t i o n

on

a t o t a l

8/16/2019 Us 20110249602

12/13

US 011/0249602

A 1


p o r t ( s )

a n d

d i s t r i b u t i n g t h e p a r t i t i o n e d


t o be r o v i d e d i n tWo o r

more

prede?ned a r t s of

a


c o m m u n i c a t i o n s i g n a l , t h e p r e d e ? n e d

p a r t s

p r e f e r a b l y b e i n g s t o r e d i n

memory

i r c u i t r y . A c c o r d i n g t o a n

embodiment

o f

t h e i n v e n t i o n , t h e t r a n s m i t

n o d e i s

p r e f e r a b l y

a base s t a t i o n (eNB)

o r

a r e l a y n o d e .

[ 0 0 8 6 ]

F I G .

7

s h o W s

a

p r i n c i p l e

d i a g r a m o f a n

e x a m p l e

r e c e i v e

node

a p p a r a t u s 7 0 1) f o r a W i r e l e s s c o m m u n i c a t i o n s

s y s t e m a c c o r d i n g t o t h e p r e s e n t i n v e n t i o n . The r e c e i v e n o d e

a p p a r a t u s c o m p r i s e s

r e c e i v i n g

c i r c u i t r y ( 7 0 4 ) c o n n e c t e d t o

one o r more

a n t e n n a s

7 0 2 ,

7 0 3 ) .

The r e c e i v i n g c i r c u i t r y

c o m p r i s e s e l e ct r o n i c s f o r r e c e p t i o n o f

a c o m m u n i c a t i o n s i g

n a l .

T h e

r e c e p t i o n a p p a r a t u s ( 7 0 1 ) c o m p r i s e s p r o c e s s i n g c i r

c u i t r y 7 0 5 )

o p e r a t i n g o n r e c e i v e d

s i g n a l s p r o v i d e d v i a t h e

r e c e i v i n g c i r c u i t r y ( 7 0 4 ) .

T h e

r o c e s s i n g c i r c u i t r y

c o m p r i s e s

modules

f o r d e t e r m i n i n g

from tWo o r more

prede?ned

p a r t s

of a

r e c e i v e d

communication s i g n a l t r a n s m i t t e d from

eg

b a s e

s t a t i o n , t h e p r e d e ? n e d

p a r t s p r e f e r a b l y b e i n g s t o r e d i n

memory i r c u i t r y o f t h e

r e c e i v i n g

a p p a r a t u s .

T h e

e l e c t r o n i c s

o f

t h e

p r o c e s s i n g c i r c u i t r y

d e t e r m i n e

from t

l e a s t a

s e c o n d

p a r t

o f

t h e

communication

s i g n a l a

t o t a l number f

t r a n s m i s

s i o n a n t e n n a

p o r t s

t o

b e

a p p l i e d .

As n e e d

b e , a l s o t h e

p r e

d e ? n e d r s t p a r t o f

h e

c o m m u n i c a t i o n i g n a l i s p r o c e s s e d o r

d e t e r m i n i n g t h e number o f a n t e n n a p o r t s t o

b e

a p p l i e d

f o r

s u b s e q u e n t s i g n a l

p r o c e s s i n g . A c c o r d i n g

t o

a n

e m b o d i m e n t

o f

t h e i n v e n t i o n , t h e t r a n s m i t node i s p r e f e r a b l y a m o b i l e

s t a t i o n ,

such

a s

a UE.

[ 0 0 8 7 ] F u r t h e r m o r e ,

a s

u n d e r s t o o d by

h e p e r s o n

s k i l l e d

i n

t h e a r t , t h e method f o r

s i g n a l l i n g

number o f a n t e n n a p o r t s

a c c o r d i n g

t o t h e p r e s e n t

i n v e n t i o n may b e i m p l e m e n t e d

i n a

computer

program, having

code means, Which When

run n a

computer

c a u s e s t h e

computer t o

e x e c u t e t h e s t e p s

o f

t h e

m e t h o d .

The

computer program

i s

i n c l u d e d i n a computer

r e a d a b l e

medium of

computer

program

p r o d u c t . The

com

p u t e r

r e a d a b l e

medium

may c o n s i s t

o f

e s s e n t i a l l y a n y

memory,

such

a s

a

ROM

Read-Only

Memory),

a

PROM

P r o g r a m m a b l e R e a d - O n l y

M e m o r y ) ,

a n EPROM E r a s a b l e

PROM), a F l a s h memory, an EEPROM E l e c t r i c a l l y E r a s a b l e

PROM), o r a

hard

d i s k d r i v e .

[ 0 0 8 8 ] I t s h o u l d

a l s o b e

u n d e r s t o o d

t h a t t h e

p r e s e n t i n v e n

t i o n

i s

n o t l i m i t e d

t o

t h e embodiments d e s c r i b e d a b o v e , b u t

a l s o r e l a t e s t o and

i n c o r p o r a t e s

a l l

embodiments

W i t h i n

t h e

s c o p e o f

t h e

a p p e n d e d i n d e p e n d e n t c l a i m s .

1 . A ethod i n a

W i r e l e s s

communication s y s t e m f o r s i g

n a l l i n g t h e number o f a n t e n n a p o r t s Which a t r a n s m i t node

c o m p r i s e s , c o m p r i s i n g :

t r a n s m i t ti n g a c o m m u n i c a t i o n

s i g n a l i s t r a n s m i t t e d

c a r r y

i n g i n f o r m a t i o n

on t h e

number of at l e a s t

one

antenna

p o r t o f s a i d

t r a n s m i t

n o d e , W h e r e i n t h e i n f o r m a t i o n on

t h e number of h e a t

l e a s t one

a n t e n n a p o r t

i n c l u d e s

and

i s

p r o v i d e d d i s t r i b u t e d

o v e r

a t

l e a s t

tWo prede?ned

a r t s

o f s a i d c o m m u n i c a t i o n s i g n a l .

2 . The method

a c c o r d i n g t o

c l a i m 1 ,

W h e r e i n a

p r e d e ? n e d

? r s t p a r t o f s a i d c o m m u n i c a t i o n

i g n a l c o m p r i s e s s i g n a l l i n g a

? r s t

number of a t

l e a s t one antenna p o r t corresponding t o a

? r s t t y p e o f

a n t e n n a

p o r t s s a i d

t r a n s m i t

n o d e c o m p r i s e s , a n d

a

prede?ned

s e c o n d

p a r t

o f s a i d communication

s i g n a l

com

p r i s e s

s i g n a l l i n g

a s e c o n d number o f a n t e n n a p o r t s c o r r e

s p o n d i n g t o a s e c o n d t y p e o f

a n t e n n a

p o r t s s a i d t r a n s m i t node

c o m p r i s e s ,

W h e r e i n s a i d ? r s t a n d s e c o n d

t y p e s

o f a n t e n n a

p o r t s a r e

d i f f e r e n t

from

each o t h e r .

3 . The Method a c c o r d i n g t o c l a i m 2 , Wherein

s a i d

commu

n i c a t i o n s i g n a l c o m p r i s e s a

s e t o f i n f o r m a t i o n

b i t s a t t a c h e d

W i t h

m a s k e d C y c l i c

R e d u n d a n c y

C h e c k p a r i t y

b i t s .

O c t . 1 3 , 2 0 1 1

4 . The method a c c o r d i n g

t o

c l a i m 3 , W h e r e i n s a i d p r e

de?ned

? r s t p a r t o f s a i d c o m m u n i c a t i o n s i g n a l c o m p r i s e s

a

C y c l i c R e d u n d a n c y Check

mask c o r r e s p o n d i n g t o

s a i d

? r s t

number

of t l e a s t

one

antenna p o r t .

5 . The method

a c c o r d i n g

t o

c l a i m

4 , W h e r e i n

s a i d ? r s t

number

of

t

l e a s t one

antenna p o r t

i s

o n e , tWo o r f o u r .

6 . The method

a c c o r d i n g t o c l a i m 4 , W h e r e i n s a i d

p r e

d e ? n e d s e c o n d p a r t o f s a i d c o m m u n i c a t i o n s i g n a l c o m p r i s e s

a t l e a s t one e x p l i c i t b i t b e l o n g i n g to s a i d s e t o f


b i t s

t o

i n d i c a te s a i d s e c o n d

number

o f a n t e n n a p o r t s .

7 .

The method

a c c o r d i n g

t o

c l a i m

6 ,

W h e r e i n

s a i d

s e c o n d

number o f a n t e n n a p o r t

i s

Z e r o , t W o ,

f o u r o r

e i g h t .

8 . The method a c c o r d i n g

t o

c l a i m , Wherein s a i d commu

n i c a t i o n s i g n a l

i s

t r a n s m i t t e d on a

P h y s i c a l

B r o a d c a s t Chan

n e l .

9 .

The method a c c o r d i n g to c l a i m

,

W h e r e i n

s a i d

? r s t t y p e

of

n t e n n a

p o r t s a r e

de?ned by a ? r s t s e t of Common

efer

e n c e

S i g n a l s

and a i d second

y p e

of

n t e n n a

p o r t s

a r e de?ned

by

a s e c o n d s e t o f Common e f e r e n c e

S i g n a l s , s a i d ? r s t

and

s e c o n d s e t

o f

Common R e f e r e n c e S i g n a l s

b e i n g d i f f e r e n t

from

e a c h

o t h e r .

1 0 .

The method

c c o r d i n g

o

c l a i m , W h e r e i n

s a i d W i r e l e s s

communication

s y s t e m

c o m p r i s e s a

c e l l u l a r

communication

s y s t e m ,

a n d

Common

e f e r e n c e

S i g n a l s

b e l o n g i n g

t o

a t

l e a s t

one

of a i d

? r s t

and second e t ofCommon e f e r e n c e

S i g n a l s

a r e

c e l l - s p e c i ? c Common

R e f e r e n c e S i g n a l s .

1 1 .

The method a c c o r d i n g t o c l a i m

1 0 , W h e r e i n t h e Com

mon e f e r e n c e S i g n a l s b e l o n g i n g t o s a i d ? r s t

s e t

o f Common

Reference

S i g n a l s

a r e

used f o r

a t

l e a s t one of de modulation

a n d c h a n n e l m e a s u r e m e n t , a n d

t h e

Common

R e f e r e n c e

S i g

n a l s b e l o n g i n g to s a i d s e c o n d s e t o f Common

e f e r e n c e

S i g n a l s

a r e s p a r s e l y

d i s t r i b u t e d and used f o r c h a n n e l mea

s u r e m e n t

o n l y .

1 2 .

The

method a c c o r d i n g t o c l a i m 2 , W h e r e i n s a i d p r e

d e ? n e d

? r s t p a r t o f

s a i d c o m m u n i c a t i o n

s i g n a l

i s t r a n s m i t t e d

on

a

? r s t

c h a n n e l

and

s a i d

prede?ned

second

p a r t

of

s a i d

communication s i g n a l

i s

t r a n s m i t t e d on a

second

c h a n n e l ,

s a i d second

c h a n n e l

b e i n g

t r a n s m i t t e d on

a t

l e a s t one

of

a i d

? r s t

t y p e

o f

a n t e n n a p o r t s i n d i c a t e d by

s a i d ? r s t p a r t o f s a i d

c o m m u n i c a t i o n s i g n a l .

1 3 .

The method

n

a

t r a n s m i t

node i n a

W i r e l e s s

communi

c a t i o n

s y s t e m f o r s i g n a l l i n g t h e number o f

a n t e n n a

p o r t s

W h i c h s a i d t r a n s m i t n o d e c o m p r i s e s , s a i d method

c o m p r i s

i n g : s a i d

t r a n s m i t

n o d e t r a n s m i t t i n g a c o m m u n i c a t i o n s i g n a l

c a r r y i n g


on t h e

number

of

a t

l e a s t one antenna

p o r t o f

s a i d t r a n sm i t n o d e ,

W h e r e i n t h e i n f o r m a t i o n

on t h e

number

o f a t l e a s t one a n t e n n a

p o r t

i s p a r t i t i o n e d and

p r o

v i d e d d i s t r i b u t e d o v e r a t l e a s t

tWo

prede?ned p a r t s o f s a i d


s i g n a l .

1 4 . ethod n a r e c e i v e node i n a W i r e l e s s

communica

t i o n s y s t e m f o r

r e c e i v i n g

s i g n a l s

i n d i c a t i n g t he n u m b e r

o f

a n t e n n a p o r t s Which a t r a n s m i t node

c o m p r i s e s , c o m p r i s i n g :

r e c e i v i n g , b y s a i d r e c e i v e n o d e , a c o m m u n i c a t i o n s i g n a l

c a r r y i n g


on t h e number

of

a t

l e a s t one

a n t e n n a

p o r t

o f s a i d

t r a n s m i t

n o d e ,

W h e r e i n t h e

Date post:	05-Jul-2018
Category:	Documents
Upload:	kawtarkawtar
View:	215 times
Download:	0 times

Us 20110249602

Documents