WO2004080103A1 - Distance dependent direct mode peer-to-peer communication establishment in a tdd cdma network - Google Patents
Distance dependent direct mode peer-to-peer communication establishment in a tdd cdma network Download PDFInfo
- Publication number
- WO2004080103A1 WO2004080103A1 PCT/IB2004/050137 IB2004050137W WO2004080103A1 WO 2004080103 A1 WO2004080103 A1 WO 2004080103A1 IB 2004050137 W IB2004050137 W IB 2004050137W WO 2004080103 A1 WO2004080103 A1 WO 2004080103A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- communication
- ues
- caller
- callee
- wireless communication
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
Definitions
- the present invention relates generally to a method and apparatus for
- a UE has to communicate
- FIG. 1 illustrates the
- Radio Access Network consisting of the base station transceiver (namely Node B)
- P2P peer-to-peer communication
- Fig. 2 illustrates a P2P communication mode, where the dashed line
- radio resource unit having fixed frequency, timeslot and
- TDD mode can carry out P2P communication without additional RF transceiver and all modifications needed are related with higher-layer protocols
- This method and apparatus can enable P2P communication between two UEs who
- This invention proposes a method for establishing P2P communication in
- the present invention proposes a method for the
- UE to establish P2P communication in an UE comprising:
- wireless communication system has allocated direct communication link to the UE
- This invention proposes a method for the UE to establish P2P communication
- the present invention proposes an apparatus for the
- wireless communication system to establish P2P communication comprising: a
- a judging unit for determining whether the
- the wireless communication system indicating whether the caller and the callee
- an allocating unit for allocating direct communication link for the
- communication as proposed in this invention may further comprise: a call request
- responding unit for receiving and responding to a call request when the call request sent by a caller to the wireless communication system contains the position
- a paging response receiving unit for receiving and
- wireless communication system contains the position information of the callee.
- a UE comprising:
- an RF unit for receiving or transmitting radio signals
- a data processing unit for processing signals
- a baseband processing unit for controlling the RF unit
- the UE proposed in this invention may further comprise: a calling unit, for
- Fig. 1 is a schematic diagram illustrating a TDD CDMA system employing
- Fig. 2 is a schematic diagram illustrating a TDD CDMA system employing
- Fig. 3 illustrates the structure of a UE employing P2P communication mode
- Fig. 4 illustrates the flowchart of a TDD CDMA system employing P2P
- the UE stays in IDLE mode until it sends a request to establish an
- RRC Radio Resource Control
- the UE enters CONNECT mode.
- the UE leaves CONNECT mode to return to IDLE mode.
- the entities of an RRC connection involve both the UE and the UTRAN.
- the UE's operation mode does not fit IDLE mode or CONNECT
- the UE should have a module for indicating its P2P
- FIG. 3 is a block diagram illustrating the structure of a UE
- the UE comprises an RF module 10, a
- the RF module consists of a
- the RF unit has its own RF carrier.
- transceiver is coupled to an input of the demodulator and an input of the transceiver
- the baseband processor can control and
- the MMI includes a P2P communication
- capability indicator 60 and the indicator could be implemented in either hardware,
- UE1 or UE2 enters IDLE mode (S11)
- UE1 or UE2 When UE1 or UE2 is powered on, it selects a public land mobile network
- PLMN PLMN
- the UE establishes downlink
- the UE enters and stays in IDLE mode.
- UE1 When UE1 wants to communicate with UE2 in the same cell, it initiates
- the UTRAN to obtain radio resource, wherein the request message may include
- UE1 moves to CONNECT mode, that is, a
- the UTRAN calls UE2 (S13)
- the UTRAN After receiving the call request from UE1 , the UTRAN sends a paging
- UE2 sends paging response (S14) UE2 can monitor its own PICH (Paging Indication Channel) and PCH (Paging
- UE2 After receiving the paging message, UE2 will respond to the UTRAN by
- the response message may include the indication
- UE2 After responding to the UTRAN, UE2 also enters CONNCET mode, that is, a
- signaling connection is also established between UE2 and the UTRAN.
- the UTRAN checks whether UE1 and UE2 are camping on the same
- the UTRAN computes whether the distance between the two UEs falls within
- the UTRAN indicates UE1 and UE2 to communicate in
- the UTRAN checks whether
- the UTRAN allocates a direct communication link as radio
- UE1 and UE2 exchange information with the set power via
- P2P communication capability it can acquire the information by polling.
- P2P communication capability but one of UE1 and UE2 doesn't have P2P
- the UTRAN instructs UE1 and UE2 to communicate in conventional mode (S19).
- UE has P2P communication capability, it sends a poll message to the caller or the
- P2P communication capability can be set by a keystroke or a switch on the UE
- the apparatus for P2P During implementing P2P communication procedures, the apparatus for P2P
- communication in the UTRAN comprises: a call request responding unit, for receiving and responding to a call request when the call request sent by a caller to
- the UTRAN contains the position information of the caller; a paging response
- receiving unit for receiving and responding to a call response when the call
- response sent by the callee to UTRAN contains the position information of the
- callee a computing unit, for judging whether the two UEs (caller and callee) are in
- a judging unit for determining whether
- the two UEs both have P2P communication capability according to the information
- an allocating unit for
- the apparatus for P2P communication may also include: a poll
- an indication sending unit for sending an indication to let
- P2P communication or one of them doesn't have P2P communication capability.
- the UE During the implementation of P2P communication procedures, the UE
- a calling unit for sending a call request containing the position
- an RF unit for receiving or transmitting radio
- a data processing unit for processing radio signals received by the RF unit
- a baseband processing unit for
- the UE may also include: a poll
- message responding unit for sending a message indicating whether the UE has
- the capability indicating means can be a keystroke or a switch on the UE, or an item
- TDD CDMA systems proposed by this invention can save about 50% radio
- control link still exists between the UE and the UTRAN during
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04713959A EP1604537A1 (en) | 2003-03-07 | 2004-02-24 | Distance dependent direct mode peer-to-peer communication establishment in a tdd cdma network |
JP2006506636A JP2006523404A (en) | 2003-03-07 | 2004-02-24 | Establishing distance-dependent direct peer-to-peer communication in TDD / CDMA networks |
US10/547,583 US20060160544A1 (en) | 2003-03-07 | 2004-02-24 | Distance dependent direct mode peer -to-peer communication establishment in a tdd cdma network |
CNA2004800061550A CN1757258A (en) | 2003-03-07 | 2004-02-24 | Distance dependent direct mode peer-to-peer communication establishment in a TDD CDMA network |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA031198929A CN1527621A (en) | 2003-03-07 | 2003-03-07 | Method and apparatus for establishing point-to-point coordinate communication in radio communication network |
CN03119892.9 | 2003-03-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004080103A1 true WO2004080103A1 (en) | 2004-09-16 |
Family
ID=32932361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2004/050137 WO2004080103A1 (en) | 2003-03-07 | 2004-02-24 | Distance dependent direct mode peer-to-peer communication establishment in a tdd cdma network |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060160544A1 (en) |
EP (1) | EP1604537A1 (en) |
JP (1) | JP2006523404A (en) |
CN (2) | CN1527621A (en) |
TW (1) | TW200529688A (en) |
WO (1) | WO2004080103A1 (en) |
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TW200529688A (en) | 2005-09-01 |
JP2006523404A (en) | 2006-10-12 |
CN1757258A (en) | 2006-04-05 |
CN1527621A (en) | 2004-09-08 |
EP1604537A1 (en) | 2005-12-14 |
US20060160544A1 (en) | 2006-07-20 |
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