91 results about "Common control physical channel" patented technology

Various techniques are disclosed for unambiguously determining and tracking frame offset in asynchronous wireless communication user equipment. The user equipment determines the unambiguous connection frame number of a downlink channel. The equipment then determines frame timing information for neighbor cells. The frame timing information for the primary common control physical channel and uplink dedicated physical channels is determined. The frame timing is determined as a coarse resolution frame offset in conjunction with a fine resolution chip offset. The frame numbering information for the uplink and downlink dedicated physical channels and the primary common control physical channel is also determined. Then the frame number and timing information is updated using a counter accurate to one chip resolution. The frame offset is updated if the number of chips underflows or overflows a predetermined window. Frame timing may be updated by updating only the fine chip offset or may be completely determined.

The invention discloses a position information determining method and a position information determining device, which are used for quickly determining a position with relatively weak signal coverage in a room covered by outdoor signals. The position information determining method provided by the invention comprises the following steps of: acquiring a measurement report (MR) of user equipment (UE); and for the same UE, determining the position with relatively weak signal coverage in the room covered by the outdoor signals according to timing advance (TA) and primary common control physical channel (P-CCPCH) receiving signal code power (RSCP) in the MR.

The invention relates to a method and a device for transmitting multimedia broadcast multicast services (MBMS) in a multicarrier mobile communication system. By fully utilizing features of multicarrier resources, the transmission speed of the MBMS is accelerated and the receiving time of a terminal is reduced, thereby achieving the effect of electricity saving. Each secondary common control physical channel (SCCPCH) transmitting MBMS data is configured on a carrier resource by a system, and a plurality of SCCPCHs are configured on a plurality of carrier resources; when the MBMS data passes through an MAC-m substance at the transmission side, the MBMS data are distributed to a plurality of traffic channels, namely, FACHs, a plurality of FACHs are mapped to a plurality of SCCPCHs through one or a plurality of Iub transmission bearers and transmitted on a plurality of SCCPCH carrier resources in parallel, but when adopting one Iub transmission bearer, a synergy FACH data frame structure is adopted; the MBMS data is received by the receiving side on a plurality of SCCPCH carrier resources and transmitted to the MAC-m substance at the receiving side to realize the combination of the data, and the MBMS data on a plurality of SCCPCH carrier resources is combined into an MBMS datum.

Disclosed is a method for acquiring frame synchronization of a broadcasting channel (BCH) in an asynchronous mobile communication system. The method comprises acquiring system timing through a synchronization channel; performing CRC by demodulating for a predetermined time duration a primary common control physical channel (PCCPCH) based on the system information, re-designating a demodulating duration according to the CRC result, and performing CRC; and acquiring frame synchronization of the BCH when the CRC is consecutively passed at least two times.

The invention discloses a method for determining cell throughput, which aims at solving the problem that the evaluation on the network performance of an HSUPA (High Speed Uplink Packet Access) system is inaccurate because the cell throughput is determined according to the static parameters and the throughput of the HSUPA system is determined according to the determined cell throughput in the prior art. The method comprises the following steps of: measuring the current RSCP (Received Signal Code Power) value of a P-CCPCH (Primary Common Control Physical Channel) of each cell in the HSUPA system; and determining the throughput of each cell, wherein, for each cell, the E-DCH (Enhanced Dedicated Channel) signal to noise ratio of the cell is determined according to the RSCP value of the P-CCPCH of the cell and adjacent cells, and the throughput of the cell is determined according to the determined signal to noise ratio and the corresponding relationship between the preset cell signal to noise ratio and the cell throughput. When the technical scheme of the invention is adopted, the accuracy of the evaluation on the network performance of the HSUPA system can be improved. The invention is more favorable for the network planning and optimization.

The invention discloses a method, a system and a device for switching networks of a mobile terminal, aiming at solving the problem that the method for switching networks of mobile terminal affects the efficiency of the mobile terminal in a current packet domain service in the prior art. The method comprises the following steps: a network side device judges that PCCPCH (primary common control Physical Channel) RSCP (received signal code power) reported by the mobile terminal is less than a signal power valve value and the current service of the mobile terminal is a packet domain service, the network sides judges whether to inform the mobile terminal of switching networks from a 3G (The 3rd Generation Telecommunication) communication network to a 2G (The 2rd Generation Telecommunication) communication network based on the current experience quality metric of the mobile terminal. In the embodiment of the invention, when the mobile terminal executes a pocket domain service at present, the network side device judges whether to inform the mobile terminal of switching networks according to the PCCPCH RSCP and the current experience quality metric of the mobile terminal, so that the mobile terminal is capable of accurately switching networks and the efficiency of the mobile terminal in the packet domain service is improved.

The invention discloses a method and apparatus for determining district coverage through a common channel, which solves the problem that the district coverage accuracy determined by the existing technique is bad. The method includes the following steps of determining the present district association detection interference elimination factor and the adjacent district association detection interference elimination factor based on a demodulation threshold of the present district; determining the equivalent path loss based on the present district association detection interference elimination factor, the adjacent district association detection interference elimination factor, the demodulation threshold, the ratio of the interference total power of the adjacent district and the signal total power of the present district, the signal total power of the present district and the signal sending power of a main common control physical channel; and determining the district coverage based on the equivalent path loss. The invention is used to determine district coverage, by means of the technical scheme provided by the invention, the district coverage can be determined more accurately, and reference performance is provided for network plan and network majorization.

The present invention discloses a method of beam shaping for a forward access channel, which increases information on angle of arrival in data frames of a random access channel RACH at an Iub interface in advance and adds shaping parameters in data frames of a forward access channel at the Iub interface and includes procedures below: A. A radio network controllers obtains information on terminal angle of arrival through data frames of an uplink RACH; B. The RNC confirms shaping parameters of data frames of a downlink FACH to a base station Node B according to the information on angle of arrival; C. The Node B shapes a secondary common control physical channel S-CCPCH, which carries the FACH, according to shaping parameters received by the RNC from data frames of the FACH. The present invention realizes beam shaping for the forward access channel, effectively restricts interference of the S-CCPCH of the FACH on other common channels.

The invention provides a method and a device for confirming distribution of user equipment. The method and the device for confirming the distribution of the user equipment are used for automatically identifying indoor signal covering state in each area, improving the identification efficiency and lowering labor cost and time cost. The method comprises that obtaining a measurement report (MR) uploaded by the user equipment (UE) with a geographic area to be analyzed in a preset time range, confirming a mean value of a primary common control physical channel received signal code power P-CCPCH RSCP of each UE and a mean value of the P-CCPCH RSCP of each geological raster in the preset time range according to the obtained MR, wherein the geological rasters are obtained by dividing the geographic area to be analyzed in advance. According to the mean value of the P-CCPCH RSCP of each UE and the mean value of the P-CCPCH RSCP of geological rasters of the UE, the number of UE which meet the preset requirement in each geological raster is confirmed.

The invention provides a method, a device and a system for setting a maximum transmitting power based on an RRU (Radio Remote Unit). The method comprises the following steps of: obtaining corresponding RRU type of a cell, service data information, base station configuration, predetermined maximum transmitting power of the cell and predetermined PCCPCH (Primary Common Control Physical Channel) maximum transmitting power from a database; determining the number of carriers of the cell according to the base station configuration and the service data information; determining the transmitting power of the cell according to the RRU type and the number of carriers; determining the PCCPCH transmitting power according to the RRU type and the base station configuration; and setting the maximum transmitting power of the cell according to the determined transmitting power of the cell and the predetermined maximum transmitting power of the cell. The cell with small service demands is configured with rational carriers by analyzing the service data of users in the cell, so that the maximum transmitting power of the cell and a service channel transmitting power are both improved, finally, the effect of TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) coverage is improved and user experience is improved.

The invention discloses a user subdistrict switching access method under the high speed environment. The method includes the following steps: obtaining the received signal code power (RSCP) received by a primary common control physical channel (PCCPCH) of the subdistrict and the adjacent subdistrict, the angle (AOA) between a subdistrict uplink signal channel and an antenna, and the moving direction of user equipment (UE); determining the subdistrict switching access according to the decision mode of the RSCP received by the PCCPCH and the UE moving direction; or determining the subdistrict switching access according to the decision mode of the AOA and the UE moving direction; or determining the subdistrict switching access according to the decision results of the two decision modes. The invention also discloses a user subdistrict access system under the high speed environment. The user call is better realized under the high speed environment by adopting the method and the system.

The invention discloses a method for acquiring a wireless channel parameter. The method comprises the following steps of: presetting a sampling frequency and a sampling period which is used for measuring a serving cell and a same-frequency neighbor cell and reselecting a cell in the idle state; sampling a primary common control physical channel received signal code power (PCCPCH RSCP) signal which is received within the sampling period so as to acquire a sample; computing an average value of the acquired samples within the sampling period; and according to a preset smooth correlative time window algorithm strategy, calculating the wireless channel parameter. The invention also discloses a device for acquiring the wireless channel parameter. By the invention, reselecting switching frequency is reduced, power consumption of user equipment (UE) is reduced and a user experience is improved.

A method for detecting an error of system information in a mobile communication system is disclosed. A radio resource control (RRC) packet data unit (PDU) is created to transmit system information and the length of the RRC PDU is checked to determine if an error exists, with the RRC PDU sent to user equipment through a primary common control physical channel (PCCPCH) if no error exists.

The invention discloses a method for ensuring a mobile terminal to reside in a network and the mobile terminal. The method comprises the following steps of: searching a time division-synchronization code division multiple access (TD-SCDMA) frequency band, and if a primary common control physical channel (PCCPCH) received signal code power (RSCP) is greater than the minimum level, selecting to reside in a TD-SCDMA network; and measuring signals broadcast by the TD-SCDMA network in a plurality of long term evolution (LTE) networks adjacent to the TD-SCDMA network and selecting to reside in the optimal LTE network. By the method for ensuring the mobile terminal to reside in the network, the mobile terminal can simultaneously support network standards of the second generation (2G), the third generation (3G) and the fourth generation (4G) and can simultaneously reside in two networks with different standards, so that the full utilization of network resources is realized.

A mobile communication system supporting an MBMS service includes a Node B having a plurality of transport channels and at least one UE communicating with the Node B. The Node B selects a transport channel for MBMS control information among a plurality of transport channels mapped to a secondary common control physical channel; transmits a system information block indicating the selected transport channel to a cell area where UEs are located, using a primary common control physical channel; and transmits the MBMS control information to the cell area using the selected transport channel. The UE receives a system information block indicating a transport channel selected to transmit MBMS control information among a plurality of transport channels mapped to a secondary common control physical channel, over a primary common control physical channel; receives the MBMS control information over the selected transport channel among the plurality of the transport channels, using the system information block; and receives the MBMS service using the MBMS control information.

The invention discloses a cell reselection method and a terminal device in a TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) network. The method comprises the following steps that: when a cell reselection flow is triggered, the terminal device orderly tries to read BCH (Broadcast Channel) information of corresponding pilot frequency neighboring cells according to a descending order of a RSCP (Received Signal Code Power) value of a PCCPCH (Primary Common Control Physical Channel) from a pilot frequency neighboring cell list appointed by the current residing cell network side, and reselects the pilot frequency neighboring cell in which the information can be read successfully; and if the terminal device is failed in reading the BCH information of all the pilot frequency neighboring cells appointed by the current residing cell network side, the terminal device orderly tries to read the BCH information of corresponding pilot frequency neighboring cells according to the descending order of the RSCP value of the PCCPCH from the pilot frequency neighboring cell list inherited by the previous residing cell, and reselects the pilot frequency neighboring cell in which the information can be read successfully. The terminal device comprises a pilot frequency neighboring cell information maintaining module, a first reselection module and a second reselection module. Through the invention, the success rate of cell reselection is improved effectively.

The invention discloses a method, a device and a system for determining the motion trail of a mobile terminal, and aims to solve the problems of low accuracy and long time delay in the motion trail determination of the mobile terminal in the prior art. The method comprises the following steps of: selecting at least one base station for each piece of received measurement information; determining the primary common control physical channel (PCCPCH) received signal code power (RSCP) and time advance of the base station according to the measurement information; determining the first and second distances of the mobile terminal to the base station according to the PCCPCH RSCP and the time advance, and determining the position of the mobile terminal when the mobile terminal reports the measurement information according to the first and second distances; and determining the motion trail according to the position of the mobile terminal when the mobile terminal reports each piece of measurement information. According to the embodiment of the invention, the motion trail of the mobile terminal is determined according to the PCCPCH RSCP and the time advance in each piece of measurement information, so that the motion trail determination accuracy of the mobile terminal is improved, and the motion trail determination time delay of the mobile terminal is shortened.

The present invention discloses a control method for periodic measurement. The method comprises the following steps: the coverage area of a cell is previously divided into a central area, a soft frequency reuse switching area and a marginal area by a radio network controller (RNC); measurement control information used for controlling user equipment (UE) to report events to the RNC when the UE enters or leaves the switching area is sent by the RNC to the UE according to the area in which the UE is, and the measurement control information is 2D event measurement control information and / or 2F event measurement control information; the events are reported to the RNC by the UE according to the measurement control information received when the received signal code power (RSCP) of a primary common control physical channel (PCCPCH) meets event report requirements, namely the threshold limitation of the events carried by the measurement control information; the UE is controlled by the RNC to carry out periodic measurement for neighbouring cells in the switching area according to the events reported by the UE. The expenses of periodic report on idle signalling can be reduced by the method.

The invention relates to a method for a terminal to obtain attribute of a neighboring region with the same frequency in a multi-carrier frequency TD-SCDMA system and a measuring method. The method comprises the following steps: during construction of a neighboring region list with the same frequency, a network side fills the basic common control physical channel (PCCPCH) emission power information of the neighboring region into the region information of the neighboring region list with the same frequency if a neighboring region is determined to be the neighboring region in the same frequency of the primary carrier frequency of the current terminal UE, otherwise the network side does not fill the PCCPCH emission power information of the neighboring region into the region information of the neighboring region list with the seam frequency ; the neighboring region list with the same frequency is transmitted to the UE via a measurement control command after judging the attribute of all neighboring regions; after receiving the list, the UE judges whether the corresponding region is a primary carrier frequency neighboring region with the same frequency or an auxiliary carrier frequency neighboring region with the same frequency by judging whether each region information in the neighboring list with the same frequency contains the PCCPCH emission power information, if so, PCCPCH measurement is initiated to the corresponding region, and otherwise, the PCCPCH measurement is not initiated. By adopting the invention, the problem of protocol compatibility is avoided based on the presence or absence of the PCCPCH emission power.

The invention discloses a method, a system and a device for locating a mobile terminal, which are used for solving the problems of low locating precision and large delay existing in the prior art. The method comprises the following steps: according to measurement information reported by a mobile terminal, at least one base station is selected; according to the abstracted and accordingly selected PCCPCH (Primary Common Control Physical Channel) RSCP value and the time advance estimation of each base station, a first distance and a second distance between the mobile terminal and each base station are determined; and the current position information about the mobile terminal is determined according to the first distance and the second distance between the mobile terminal and each selected base station, as well as the position information about each base station. According to the method provided by the embodiment of the invention, since the mobile terminal is located based on the PCCPCH RSCP value corresponding to each base station and the time advance estimation, the precision of locating the mobile terminal is improved, and the delay of locating the mobile terminal is shortened.

A method and apparatus for paging a wireless transmit / receive unit (WTRU) in a CELL_PCH and URA_PCH states are disclosed. A WTRU may send an indication of an enhanced paging channel (PCH) capability of receiving a high speed downlink shared channel (HS-DSCH) in CELL_PCH and URA_PCH states, for example, in a CELL UPDATE message, a URA UPDATE message, or a UTRAN MOBILITY INFORMATION CONFIRM message. A drift radio network controller (DRNC) may receive an indication whether the WTRU has an enhanced PCH capability from a serving RNC and page the WTRU based on the indication. An RNC may page the WTRU over both an HS-DSCH and a PCH / secondary common control physical channel (S-CCPCH) if a WTRU capability is not known. The WTRU may monitor both an HS-DSCH and a PCH / S-CCPCH. The WTRU may configure reception over an HS-DSCH based on the capability of the SRNC or configuration from the network.

The invention provides a cell reselection method, which comprises that: one or more virtual neighbor cells are configured in a macro cell, and are configured with a frequency point and scrambling code pair respectively; a femto-cell adjacent to the macro cell sets a frequency point and a scrambling code of the main carrier frequency of the femto-cell to be the same as those of the virtual neighbor cell of the macro cell; when the signal intensity of a main common control physical channel of the femto-cell meets reselection requirements, a user terminal resident in the macro cell performs reselection from the macro cell to the femto-cell; and the user terminal performing the reselection to the femto-cell initiates location area updating to a network side, and the network side selects the frequency point with the lowest interference as a main frequency point of the femto-cell according to the location area updating. By the cell reselection method, the reselection of the user terminal from the outdoor macro cell to the femto-cell can be realized effectively.

The invention relates to a centralized spectrum allocation method in an underwater sensor network, which comprises: a channel is set as a common control channel and is used for carrying out channel selection and consultation between nodes; a center node is used for deciding a channel allocation condition and only carries out transmission of channel allocation information with other nodes; in order to guarantee only one transceiving node pair on one channel to carry out communication, the node pair needs to carry out channel selection and consultation before starting to send data; the nodes use a time slot structure when carrying out communication in the underwater sensor network, time slots have the same length, and the nodes can only send a message at a start moment of a certain time slot and are forbidden to send the message at other moments; and all sending nodes and receiving nodes need to have the same clock so as to keep whole network synchronization. According to the invention, under the condition of not transmitting a great volume of channel allocation information, the spectrum allocation method for conflict-free communication between each pair of communication nodes under the multi-channel condition can be realized.

The present invention discloses a method for reusing the frictional dedicated physical channel to realize that a plurality of users reuses one F-DPCH, and the method comprises the steps of: step one, dividing the reusing boundary of the existent frictional dedicated physical channel and confirming the deviation value of the default dedicated physical channel; step two, calculating the timing deviation of the frictional dedicated physical channel relative to the main common control physical channel according to the deviation value of the default dedicated physical channel; step three, confirming the reusing boundary value according to the timing deviation of the frictional dedicated physical channel relative to the main common control physical channel; and step four, adjusting the deviation value of the default dedicated physical channel according to the reusing boundary value, then calculating the timing deviation of the frictional dedicated physical channel relative to the main common control physical channel according to the deviation value of the adjusted default dedicated physical channel. The invention staggers the F-DPCH which is shared by a plurality of users by time to realize that a plurality of users reuses one frictional dedicated physical channel.

The invention discloses a method of improving uplink synchronous transmission accuracy in TD-SCDMA system, comprising the steps of: (1) terminal estimates space transmission path loss according to the received base station-transmitted downlink pilot frequency time gap or first common control physical channel power, and calculates space delay value according to the path loss; (2) the terminal extracts the pre-measured terminal hardware delay value stored inside, and transmits uplink pilot frequency time gap to the base station by using the sum of the terminal hardware delay value and the space transmission delay value as advanced time. Thus, it can assure the base station can accurately receive uplink pilot frequency time gap, improving uplink synchronous transmission accuracy in the TD-SCDMA system.

The invention discloses a method and device for realizing a multimedia broadcast multicast service (MBMS). The method comprises the following steps of: (1) receiving the MBMS and judging whether the ordered MBMS is released in a resident cell or not; (2) judging whether the ordered MBMS is a broadcast service or not; (3) receiving a multipath signal of the MBMS, performing a step (4) if a main receiver is switched on and an auxiliary receiver switched off, and performing a step (5) if both the main receiver and the auxiliary receiver are switched on; (4) if primary common control physical channel received signal code power (PCCPCH RSCP) is lower than a first threshold value, switching the auxiliary receiver on and performing the step (3), otherwise, directly the performing step (3); and (5) if the PCCPCH RSCP is higher than a second threshold value, switching the auxiliary receiver off and performing the step (3), and if the PCCPCH RSCP is lower than the second threshold value and notlower than a third threshold value, directly performing the step (3). In the method, the switch-on or switch-off of the auxiliary receiver of a double-receiver terminal is controlled according to thevalue of the PCCPCH RSCP, so that terminal receiving gain is increased, and the consumption of terminal equipment is lowered.

The invention provides a synchronization signal indicating resource method and user equipment, characterized by comprising: configuring the number of symbols of a broadcasting channel and / or a common control channel within a time interval according to the channel state and the communication business requirement; adding the information about the number of symbols of the broadcasting channel and / or the common control channel within the time interval into a synchronization signal; and sending the synchronization signal and the broadcasting channel and / or the common control channel to the user equipment wherein the synchronization signal indicates that the user equipment regulates the broadcasting channel and / or the common control channel according to the number of symbols of the broadcasting channel and / or the common control channel within the time interval and realizes data transmission with the network side. Therefore, the user equipment knows the number of symbols occupied by a broadcasting type channel.

The invention discloses a method for determining paging transmission channels, which comprises the following steps of: controlling a Radio Network Controller (RNC) to acquire the capability information of a mobile station; and controlling the RNC to determine channels for sending paging information according to the capability information of the mobile station and the capability information of a paging domain. The invention also provides a method for triggering the relocation of a service radio network subsystem. The RNC is controlled to determine whether the mobile station monitors the paging information on a Secondary Common Control Physical Channel (SCCPCH) or a High-Speed Physical Downlink Shared Channel (HS-PDSCH) after receiving paging indication by acknowledging whether the mobile station supports the capability of enhancing paging so as to avoid paging loss.

The invention relates to a user terminal and a method for measuring PCCPCHRSCP (Primary Common Control Physical Channel Received Signal Code Power). The user terminal comprises a cache module, a control module and a measuring module. The method comprises the following steps of: caching FFT (Fast Fourier Transform) and a reciprocal of the FFT of basic Midamble codes of all measuring cells in advance by the user terminal; after receiving a measuring command, carrying out channel estimation on all the measuring cells according to the cached FFT and the reciprocal of the FFT of the basic Midamble codes; and calculating the PCCPCHRSCP of the corresponding cell according to a channel estimating result. The invention improves the measuring precision and reduces the calculation amount and power consumption.