摘要:
A method and apparatus for implementing downlink JD (Joint Detection) in TDD CDMA communication systems, wherein the steps to be executed in the UE comprises: receiving downlink signals from a network system in a specific timeslot; acquiring the active primary and secondary channelisation codes in the specific timeslot, through processing the downlink signal; acquiring the initial ACC (Active Channelisation Codes) information for use in implementing JD in the next frame, through implementing a JD algorithm on the downlink signal by using the primary and secondary channelisation codes. An ACC dedicated channel is sent on the FPACH, carrying information relative to the use of secondary channelisation codes.
摘要:
The present invention discloses a communication method for radio communication system, comprising the steps of detecting signals received from a mobile terminal so as to obtain detected results of a corresponding uplink channel of the received signals; determining the length criteria of training sequences in corresponding uplink bursts based on said detected results of the uplink channel; allocating predetermined uplink timeslots for said mobile terminal based on said length criteria of training sequences in the uplink bursts; and notifying said mobile terminal with said length criteria of training sequences in the uplink bursts and said uplink timeslots.
摘要:
A method is provided for establishing P2P radio connection in wireless communication networks, comprising: the user equipment, as the link probing originator, transmits link probing signals via the allocated direct communication link to another user equipment as the link probing responder, according to the initial probing power provided by the wireless communication system; said another user equipment transmits the ACK message to the link probing originator via the direct communication link when receiving the link probing signals and said link probing signals meet the basic requirement for direct communication; the user equipment, as the link probing originator, monitors the direct communication link, and communicates directly with the link probing responder via the direct communication link after detecting the ACK message from the link probing responder. This method effectively guarantees the procedure of establishing P2P communication between the user equipments in P2P communication course, by utilizing the link probing process of transmitting link probing signals.
摘要:
The present invention provides a CDMA based communication system with improved channel estimation capability with respect to multiple pilots transmitted via channels dedicated to the system. In one embodiment of the invention, a CDMA based communication system compares the received multiple pilots to one another and selects a pilot with the largest power level. The channel estimation is performed based on the pilot with the largest power level to derive the associated channel parameters. The information intended for the system is then demodulated, based on the associated channel parameters, to retrieve user data In another embodiment of the invention, a CDMA based communication system first performs channel estimation on each of the dedicated channels, via each of which a pilot is received by the system, to derive channel parameters associated with each channel. Then all the channel parameters are combined to derive final channel parameters. The information intended for the system is demodulated, based on the final channel parameters, to retrieve user data. In this way, more precise channel parameters can be obtained.
摘要:
The present invention provides a method and apparatus used for enhanced uplink data transmission, comprising the steps of: monitoring the communication status of a plurality of UEs (user equipment) which conduct uplink data transmission in the RAN; receiving the data transmitted on at least one dedicated uplink channel from at least one of the plurality of UEs; according to the communication status of the plurality of UEs, dynamically allocating the number of dedicated uplink channels for at least one UE of the plurality of UEs. Utilization of the present invention can enable mobile terminal to conduct more efficient uplink transmission.
摘要:
A method and apparatus used for enhanced uplink data transmission include monitoring the communication status of a plurality of UEs (user equipment) which conduct uplink data transmission in the RAN; receiving the data transmitted on at least one dedicated uplink channel from at least one of the plurality of UEs; and according to the communication status of the plurality of UEs, dynamically allocating the number of dedicated uplink channels for at least one UE of the plurality of UEs.
摘要:
A mobile station for use in a telecommunication system is arranged to receive a signal from a base station. The signal comprises multiple communications, each communication of the multiple communications has first and second characteristics for enabling retrieval of a communication from the received signal. The mobile station is also arranged to receive a reference to said first and second characteristics which is used to obtain the first and said second characteristics.
摘要:
A GMIMO-JD (Generalized Multiple Input Multiple Output—Joint Detection) method to be executed by a receiver for use in MIMO (Multiple Input Multiple Output) wireless communication systems, comprising: receiving the radio signal sent form a transmitter; estimating the propagation channel quality of the radio signal; sending a feedback information to the transmitter according to the estimation result such that the transmitter can choose and reconfigure a GMIMO architecture suitable for the propagation channel according to the feedback information; reconfiguring a GJD architecture suitable for the receiver according to the estimation result; processing the received radio signal from the transmitter by exploiting the chosen GJD architecture.
摘要:
A method is proposed for supporting downlink JD (joint detection) in a TDD CDMA communication network system, comprising steps of: judging whether the CAI (code allocation information) in a downlink timeslot will change in the next TTI (transmission time interval); if the CAI will change, inserting the changed CAI as a specific control information into a specified field in the traffic burst in the downlink timeslot corresponding to current TTI; sending the traffic burst containing the specific control information to each UE (user equipment) in the downlink timeslot via a downlink channel.
摘要:
A method is proposed for supporting downlink JD (joint detection) in a TDD CDMA communication network system, comprising steps of: judging whether the CAI (code allocation information) in a downlink timeslot will change in the next TTI (transmission time interval); if the CAI will change, inserting the changed CAI as a specific control information into a specified field in the traffic burst in the downlink timeslot corresponding to current TTI; sending the traffic burst containing the specific control information to each UE (user equipment) in the downlink timeslot via a downlink channel.