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Method and apparatus for establishing point-to-point communication between subscriber terminals in different cells

A technology of user terminals and cells, applied in the field of communication, can solve problems such as inaccessibility of user terminals, poor wireless communication transmission environment, and remoteness

Inactive Publication Date: 2005-06-01
KONINKLIJKE PHILIPS ELECTRONICS NV
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Problems solved by technology

[0010] (ii) Currently applied to the P2P communication of the TD-SCDMA system, the wireless resources allocated to the P2P user terminal for P2P communication are allocated to the user terminal by the network system via the base station of the cell where the user terminal resides. When a user terminal wants to When migrating the carrier frequency of the sending and receiving signal to the carrier frequency of the cell where another user terminal is located, it may be because the location of the user terminal is far away from the base station, or because the transmission environment of wireless communication is bad and the service load of the cell where the base station is located is too heavy and other reasons, resulting in the user terminal being unable to access the cell under the jurisdiction of the base station

Method used

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  • Method and apparatus for establishing point-to-point communication between subscriber terminals in different cells
  • Method and apparatus for establishing point-to-point communication between subscriber terminals in different cells
  • Method and apparatus for establishing point-to-point communication between subscriber terminals in different cells

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Embodiment Construction

[0028] When two user terminals reside in different cells, according to whether the two cells are managed by the same RNC, belong to the same CN, and belong to the PLMN operated by the same network operator, the two UEs located in different cells can be Terminals are divided into the following situations:

[0029] (1) Two user terminals reside in different cells, that is, two user terminals access two different nodes B-1 and B-2, and the two nodes B-1 and B-2 are subject to the same RNC controlled, which means that the two user terminals belong to the same UTRAN. At this time, if two user terminals are respectively located at the edge of two adjacent cells, then as Figure 3A As shown; and if due to the network planning of different network operators or the consideration of service load balancing by network operators, two user terminals are respectively located in the overlapping areas of two different cells, then as Figure 3B shown.

[0030] (2) Two user terminals reside i...

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Abstract

The method of establishing point-to-point (P2P) communication between two user terminals in a network system includes the following steps: receiving the call request of the caller user terminal of these two user terminals; judging whether these two user terminals reside in the same subzone; sending one paging message to the called user terminal if these two user terminals reside in the different subzones; receiving the paging response from the called user terminal; and judging whether these two user terminals meet the P2P communication condition based on the call request and the paging response.

Description

Technical field: [0001] The present invention relates to a method and device for establishing P2P (point-to-point) peer-to-peer communication in a wireless communication network, in particular to a method and device for establishing point-to-point peer-to-peer communication between user terminals in different cells . Background technique: [0002] In a conventional cellular mobile communication system, regardless of the distance between two communicating user terminals, a user terminal must be relayed by a base station to communicate with another user terminal. figure 1 This conventional communication mode is shown, where user terminals UE1 and UE2 exchange information through the Universal Mobile Communications System Terrestrial Radio Access Network (UTRAN) consisting of base transceiver stations (Node B) and radio network controllers (RNC), which This communication mode is also called uplink-base station-downlink (UP-UTRAN-DOWN) mode. But in some cases, when two users l...

Claims

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Application Information

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IPC IPC(8): H04W76/02
CPCH04W76/14
Inventor 孙礼尚丹罗布·J·戴维斯
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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